• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The sensor of the measuring tube installed in the supply pipe can automatically measure the sensing function of the sewage, purified water, chemical water and cooling water flowing along the supply pipe so that the sensing function is not degraded by foreign substances. Disclosed is a flow rate measuring device having a function of washing a sensor for washing the oil. The supply pipe is connected to the fluid supply unit for supplying the fluid so that the fluid is supplied to the storage tank side. A measuring tube is mounted on one side of the supply pipe, and a sensor housing is installed in the measuring tube in which a sensor for detecting a flow rate and oil pressure is installed. A washing water supply passage is provided inside the sensor housing, and an upper end of the washing water supply passage is connected to the washing water supply unit through a solenoid valve, and a spray nozzle is installed at a lower end thereof so as to be close to the detection sensor. Since the solenoid valve is opened and closed by the control of the microcomputer, the washing water is sprayed to the sensing sensor through the washing water supply path and the spray nozzle, so that foreign matters stuck to the sensing sensor are removed by the washing water.
    公开号:KR19990007679A
    申请号:KR1019980044058
    申请日:1998-10-21
    公开日:1999-01-25
    发明作者:김정호
    申请人:김정호；주식회사 정엔지니어링；
    IPC主号:
    专利说明:

    Flow measuring device with the function of cleaning the sensor
    The present invention relates to an apparatus for measuring the flow rate electronically, and more particularly, to the supply pipe to measure the flow rate or fluid pressure of the fluid, such as sewage, purified water, waste water, chemical water and cooling water flowing along the supply pipe It relates to a flow rate measuring device having a function of cleaning the sensor to automatically clean the sensor so that the sensing sensor of the installed measuring tube is not degraded by the foreign matter.
    In general, the electronic flowmeter is installed in the measurement tube through which the fluid flows, and the measurement tube is installed in the supply pipe through which the fluid flows to measure the flow rate and the fluid pressure of the fluid flowing through the supply pipe using a sensor of the measurement tube. Information signals such as the flow rate and the fluid pressure of the fluid detected by the sensor of the measuring tube is applied to the flow meter so that the measurer can know the flow rate and pressure of the fluid. However, when a slurry and solids are contained in the fluid flowing along the measuring tube, or when the measuring tube is used for a long time, foreign matters stick to the sensing sensor of the measuring tube, thereby deteriorating the sensing function of the sensing sensor. 1 is a perspective view schematically showing a flow rate measuring device installed in a general measuring tube, Figure 2 is a view showing a state in which a sensor of the conventional flow rate measuring device is installed. Referring to FIGS. 1 and 2, a measuring tube 10 is installed at one side of a supply pipe (not shown) through which a fluid flows, and is integrally formed with a flow meter 12 at the center of the body of the measuring tube 10. The sensor housing 14 is mounted. The lower end of the sensor housing 14 is installed to penetrate the center of the body of the measuring tube 10 to be inserted into the measuring tube 10. A flow meter 12 is installed at the upper end of the sensor housing 14, and a sensing sensor 16 is installed at the lower end of the sensor housing 14 to detect the flow rate of the fluid flowing through the measuring tube 10. Since the sensor housing 14 is formed of a pipe having an inner space, a wire (not shown) connecting the microcomputer 18 of the flowmeter 12 and the sensor 16 is inserted into the sensor housing 14. do. End surfaces and side surfaces of the lower end of the sensor housing 14 are formed at right angles, and the sensor 16 is installed on the lower end surface of the sensor housing 14 to protrude downward. However, since the detection sensor 16 protrudes from the end surface of the sensor housing 14, foreign matter is stuck to the periphery of the detection sensor 16. When a large amount of foreign matter is attached to the surroundings of the sensor 16, the sensor 16 and the sensor housing 14 are shorted with each other by the foreign matter, so that the sensor 16 may not function normally.
    Therefore, the present invention has been made to solve the above problems, the object of the present invention is to detect the flow sensor or the fluid pressure of the fluid flowing along the supply pipe, the sensor of the measuring tube installed in the supply pipe is foreign matter It is to provide a flow measuring device that can automatically clean the sensor so that the sensing function is not degraded by.
    1 is a perspective view schematically showing a flow rate measuring device installed in a general measuring tube.
    2 is a view showing a state in which a sensor of the conventional flow measurement device is installed.
    Figure 3 (a) is a view showing the function of washing the sensor using the washing water according to the present invention.
    Figure 3 (b) is a view showing the function of cleaning the sensor using the built-in ultrasonic generator according to the present invention.
    Figure 3 (c) is a view showing the function of cleaning the sensor using an external ultrasonic generator according to the present invention.
    4 is a view schematically showing a flow rate measuring device having a function of cleaning the sensor according to the present invention.
    5 is a view showing another embodiment of the present invention.
    6 is a partially enlarged view of FIG. 5.
    Explanation of symbols for main parts of the drawings
    40: measuring tube 50: sensor housing
    52: washing water supply passage 54: spray nozzle
    56: bending groove 58: insertion portion
    60: sensor 70: flow meter
    72: micom 74: memory
    80: washing water supply unit 100: groove
    The present invention to achieve the above object is a sensor for sensing the flow rate and pressure of the fluid; A sensor housing mounted with the detection sensor and mounted to a body of a measurement tube; A flow rate measuring device comprising a flow meter mounted on an upper portion of a sensor housing, the flow rate measuring device comprising: washing means for removing foreign matters stuck to the surface and surroundings of a sensing sensor; Washing water supply means for supplying washing water to the washing means; And a control means for controlling the washing means and the washing water supply means so as to wash the sensing sensor at regular intervals by the washing means and the washing water supply means.
    In addition, the lower end of the washing water supply passage provided in the sensor housing is located in the vicinity of the sensor, the spray nozzle is installed at the lower end of the washing water supply passage, and the solenoid valve on the upper side of the washing water fork. Washing water supply is characterized in that the installation.
    In addition, the microcomputer is connected to the sensing sensor, the information signal detected from the sensing sensor is applied to the microcomputer, the solenoid valve is connected to the microcomputer and the solenoid valve opens and closes according to the signal applied from the microcomputer through the washing water supply passage. Washing water is applied to the spray nozzle to spray the spray nozzle to clean the sensor.
    According to the present invention, the supply pipe is connected to the fluid supply unit for supplying fluids such as sewage, purified water, chemical liquid, cooling water, and waste water so that the fluid is smoothly supplied. One side of the supply pipe is equipped with a measuring tube on which the sensor housing is installed is installed sensor for detecting the flow rate and oil pressure. A washing water supply passage is provided inside the sensor housing, and an upper end of the washing water supply passage is connected to the washing water supply unit through a solenoid valve, and a spray nozzle is installed at a lower end thereof so as to be close to the detection sensor. Since the solenoid valve is opened and closed by the control of the microcomputer, the washing water is sprayed to the sensing sensor through the washing water supply path and the spray nozzle, so that foreign matters stuck to the sensing sensor are removed by the washing water.
    Hereinafter, with reference to the accompanying drawings a preferred embodiment of a flow rate measuring device having a function of washing the sensor according to the present invention will be described in detail.
    Figure 3 (a) is a view showing the function of washing the sensor using the washing water according to the present invention, Figure 3 (b) shows the function of washing the sensor using the built-in ultrasonic generator according to the present invention. Figure 3 (c) is a view showing the function of cleaning the sensor using an external ultrasonic generator according to the present invention, Figure 4 is a schematic view of the flow rate measuring device having a function of cleaning the sensor according to the present invention The figure shown.
    Referring to FIG. 3 (a), a measuring tube 40 for measuring the flow rate or oil pressure of a fluid is connected to one side of a supply pipe (not shown) for supplying a fluid such as a chemical liquid, cooling water, and waste water. The measuring tube 40 is composed of a sensor 60 for detecting the flow rate and oil pressure of the fluid and a sensor housing 50 in which the sensor 60 is mounted. The upper end of the sensor housing 50 is installed with a flow meter 70 for calculating and displaying the data detected by the sensor 60, the sensor housing 50 is in the shape of a pipe (pipe) inside the space It is. The lower end of the sensor housing 50 has a V-shaped pointed tip, and a bent groove 56 having a predetermined size through which the sensing sensor 60 protrudes is provided on the comb surface of the end. A sensor 60 is installed inside the sensor housing 50, and a lower end of the sensor 60 protrudes into the bent groove 56 of the sensor housing 50. The washing water supply passage 52 is internally installed at the inner center of the sensor housing 50, and a lower end of the washing water supply passage 52 is formed to approach each of the sensing sensors 60, and the washing water supply passage At the end of the shunt of 52, a spray nozzle 54 is mounted. The solenoid valve 82 is mounted on the upper end of the washing water supply passage 52, and the washing water supply unit 80 is connected through the solenoid valve 82. The washing water supply unit 80 is connected to the washing water supply path 52 through the solenoid valve 82, the washing water supply unit 80 is installed in the vicinity of the measuring tube (40). The detection sensor 60 and the solenoid valve 82 are connected to the microcomputer 72 provided in the flow meter 70, respectively, the detection sensor 60 is operated in accordance with the signal applied from the microcomputer 72 fluid The flow rate and the hydraulic pressure of the, and the solenoid valve 82 is opened and closed according to the signal applied from the microcomputer 72 so that the washing water from the washing water supply unit 80 is applied to the washing water supply passage (52).
    Referring to the function of washing the detection sensor using the washing water of the present invention provided in this way, it is mounted on the measuring tube 40 connected to one side of the supply pipe for supplying fluids such as sewage, purified water, chemical liquid, cooling water and waste water. The microcomputer 72 has a function of opening and locking the solenoid valve 82 at regular intervals in order to automatically clean the detection sensor 60 for detecting the hydraulic pressure and the flow rate of the fluid. Accordingly, when the microcomputer 72 reaches the set time, the open signal is applied to the solenoid valve 82, and when the solenoid valve 82 is opened by the open signal applied from the microcomputer 72, the washing water supply unit 80 is provided. Washing water from the washing water supply passage 52 is applied. Since the washing water applied to the washing water supply path 52 is sprayed to the sensing sensor 60 through the spray nozzle 54, foreign substances existing on the surface and the periphery of the sensing sensor 60 are strongly applied from the spray nozzle 54. It is removed by washing water. The microcomputer 72 opens the solenoid valve 82 for a predetermined time and then locks the solenoid valve 82 by applying a lock switching signal to the solenoid valve 82. When the solenoid valve 82 is locked, since the washing water is not supplied from the washing water supply unit 80 to the washing water supply path 52, the washing water is not applied to the detection sensor 60 through the spray nozzle 54. In addition, when the microcomputer 72 opens the solenoid valve 82 and cleans the detection sensor 60, the data signal regarding the flow rate and hydraulic pressure applied from the detection sensor 60 before opening the solenoid valve 82 is performed. Is stored in the memory unit 74. While the solenoid valve 82 is opened to clean the detection sensor 60, the microcomputer 72 reads data on the flow rate and hydraulic pressure stored in the memory unit 74, and supplies the supply pipe and the measurement tube 40. The flow rate and hydraulic pressure flowing through the continue to be displayed through the flow meter (70).
    In addition, when an air compressor (not shown) is connected in place of the washing water supply unit 80 connected to the washing water supply path 52, air is supplied through the washing water supply path 52. That is, the air supplied from the air compressor is applied to the injection nozzle 54 through the washing water supply path 52, and the air applied to the injection nozzle 54 is injected to the detection sensor 60 to detect the detection sensor ( 60, it is possible to remove the foreign matter attached to.
    Referring to FIG. 3 (b), the foreign matter contained in the fluid is present in the sensor 60 of the measuring tube 40 connected to one side of the supply pipe for supplying the fluid and measuring the flow rate or the hydraulic pressure of the fluid. Clinging around. Therefore, the upper end of the sensor housing 50 to clean the surface of the detection sensor 60 installed in the measurement tube 40 and the surroundings to calculate and display the data detected from the detection sensor 60 The flow meter 70 is installed, and the sensor housing 50 is in the shape of a pipe having an interior space. The lower end of the sensor housing 50 has a V-shaped pointed tip, and a bent groove 56 having a predetermined size through which the sensing sensor 60 protrudes is provided on the comb surface of the end. A sensor 60 is installed inside the sensor housing 50, and a lower end of the sensor 60 protrudes into the bent groove 56 of the sensor housing 50. The ultrasonic generator 90 is installed on the upper side of the sensing sensor 60 installed below the sensor housing 50. The ultrasonic generator 90 is installed inside the sensor housing 50 so as to be close to the sensing sensor 60, and the ultrasonic generator 90 and the sensing sensor 60 are each provided with a microcomputer 72 provided in the flow meter 70. ), The detection sensor 60 operates according to a signal applied from the microcomputer 72 to detect the flow rate and the hydraulic pressure of the fluid, and the ultrasonic generator 90 is applied from the microcomputer 72. The ultrasonic wave is applied to the detection sensor 60 by operating according to the signal.
    Referring to the function of cleaning the detection sensor using the internal ultrasonic generator of the present invention as described above, foreign matter contained in the fluid in the sensor 60 of the measuring tube 40 for measuring the flow rate and hydraulic pressure of the supply pipe for supplying the fluid This clings. Therefore, when the measurement tube 40 is used for a long time, it is necessary to wash the detection sensor 60 of the measurement tube 40 to detect the correct flow rate and oil pressure, so that the microcomputer 72 provided in the flow meter 70 has a predetermined time elapsed. The operation signal is applied to the ultrasonic generator 90 built into the sensor housing 50. The ultrasonic generator 90 generates ultrasonic waves immediately when an operation signal is applied from the microcomputer 72. When the ultrasonic generator 90 generates ultrasonic waves, vibration is generated at the lower end of the sensor housing 50 by ultrasonic waves and applied to the detection sensor 60. When the detection sensor 60 is shaken finely by vibration, foreign matter present on the surface and surroundings of the detection sensor 60 is separated, so that the detection sensor 60 performs a sensing function smoothly. In addition, when the microcomputer 72 operates the ultrasonic generator 90 to remove foreign substances existing on the surface and surroundings of the sensing sensor 60, the microcomputer 72 is applied from the sensing sensor 60 before operating the ultrasonic generator 90. The memory unit 74 stores the data signals relating to the flow rates and oil pressures. While operating the ultrasonic generator 90 to remove foreign substances present in the sensing sensor 60, the microcomputer 72 reads data on the flow rate and hydraulic pressure stored in the memory unit 74 and supplies the pipe and the measurement. The flow rate and hydraulic pressure flowing through the pipe 40 are continuously displayed through the flow meter 70.
    Referring to FIG. 3 (c), a measuring pipe 40 is connected to a supply pipe for supplying a fluid, and a measuring sensor for sensing the oil pressure and flow rate of the fluid flowing through the supply pipe is connected to the measuring pipe 40 ( 60) is installed. The foreign matter contained in the fluid is stuck to the surface and the periphery of the sensor 60, the detection sensor 60 does not perform a smooth sensing function. Therefore, the ultrasonic generator 90 is mounted at the lower end of the sensor housing 50 in order to remove foreign substances existing on the surface and surroundings of the sensor 60 mounted on the measurement tube 40. That is, the sensor housing 50 is in the shape of a pipe with a space inside, and the lower end of the sensor housing 50 has a V-shaped pointed tip, and the sensor 60 on the bevel of the end Is provided with a bending groove 56 of a predetermined size to protrude. A sensor 60 is installed inside the sensor housing 50, and a lower end of the sensor 60 protrudes into the bent groove 56 of the sensor housing 50. An ultrasonic generator 90 is mounted at a predetermined distance from the end of the sensor housing 50. The ultrasonic generator 90 is mounted below the end of the sensor housing 50 so as to be close to the detection sensor 60. The ultrasonic generator 90 and the sensor 60 are connected to the microcomputer 72 provided in the flow meter 70, respectively, the sensor 60 is operated in accordance with the signal applied from the microcomputer 72 fluid The flow rate and the hydraulic pressure of the, and the ultrasonic generator 90 is operated according to the signal applied from the microcomputer 72 to generate the ultrasonic wave so that the ultrasonic wave is applied to the surface and the periphery of the sensor 60.
    Reference numeral 92 is an ultrasonic generator housing.
    When explaining the function of cleaning the sensor using the external ultrasonic generator made in this way, the foreign matter contained in the fluid in the sensor 60 of the measuring tube 40 for measuring the flow rate and hydraulic pressure of the supply pipe for supplying the fluid This clings. Therefore, when the measurement tube 40 is used for a long time, it is necessary to wash the detection sensor 60 of the measurement tube 40 to detect the correct flow rate and oil pressure, so that the microcomputer 72 provided in the flow meter 70 has a predetermined time elapsed. The operation signal is applied to the ultrasonic generator 90 installed below the sensor housing 50. The ultrasonic generator 90 generates ultrasonic waves immediately when an operation signal is applied from the microcomputer 72. When the ultrasonic wave generator 90 generates ultrasonic waves, ultrasonic waves are applied to the lower ends of the sensing sensor 60 and the sensor housing 50, and the sensing sensor 60 and the sensor housing 50 are separated from the ultrasonic generator 90. By vibrating by the applied ultrasonic waves, foreign substances existing at the ends of the sensor 60 and the sensor housing 50 are removed. When the detection sensor 60 is shaken finely by the ultrasonic wave, foreign substances present on the surface and the periphery of the detection sensor 60 are separated, so that the detection sensor 60 performs a sensing function smoothly.
    5 is a view showing another embodiment of the present invention, Figure 6 is a partial enlarged view of FIG. 5 and 6, a sensor for detecting a flow rate and oil pressure of a fluid is provided in a measuring tube 40 connected to one side of a supply pipe for supplying a fluid such as a chemical liquid, cooling water, and waste water. 60 is composed of a sensor housing 50 on which the sensor 60 is mounted. The upper end of the sensor housing 50 is installed with a flow meter 70 for calculating and displaying the data detected from the sensor 60, the microcomputer 72 is provided inside the flow meter (70). The sensor housing 50 is inserted into the measuring tube 40, the lower end of the sensor housing 50 is located in the center of the measuring tube 40. Since the sensor housing 50 inserted into the measuring tube 40 is located up to the center of the measuring tube 40, the length is long. In the sensor housing 50, a plurality of detection sensors 60 are installed in the insertion unit 58 corresponding to a portion inserted into the measurement tube 40. The insertion portion 58 is provided with grooves 100 so as to smoothly detect the hydraulic pressure and the flow rate of the fluid even in a state where the sensor 60 is not protruded to the outside. In addition, the phenomenon that the foreign matter is also stuck to the detection sensor 60 protruding in each groove 100 is connected to the washing water supply unit 80 through the washing water supply path 52 in the vicinity of each detection sensor 60. Injection nozzles 54 are provided respectively. Sensing signals relating to the flow rate and hydraulic pressure of the fluid detected by each of the sensing sensors 60 are applied to the microcomputer 72, respectively.
    Referring to the function of washing the detection sensor using the washing water of the present invention provided in this way, it is mounted on the measuring tube 40 connected to one side of the supply pipe for supplying fluids such as sewage, purified water, chemical liquid, cooling water and waste water. Since the plurality of detection sensors 60 are installed at the lower end and the side of the insertion unit 58, which is internally installed, the hydraulic pressure and the flow rate of the fluid flowing through the measuring tube 40 can be accurately measured. That is, the detection sensor 60 installed on the side of the insertion unit 58 and the detection sensor 60 installed on the lower end of the insertion unit 58 are installed at respective positions from the center of the measuring tube 40 to the variable. Therefore, by sensing the flow rate and the hydraulic pressure of the fluid at each position to apply to the microcomputer 72, the accurate hydraulic pressure and flow rate of the fluid is measured.
    In addition, the injection nozzle 54 for injecting the washing water supplied through the washing water supply passage 52 from the washing water supply unit 80 in the proximal portion of the sensor 60 mounted on the side and the lower end of the insertion unit 58, respectively Since each is installed, even if a foreign matter is fixed to each detection sensor 60 by spraying the washing water to the detection sensor 60 it is possible to quickly remove the foreign matter attached to the detection sensor (60).
    As can be seen from the above description, the present invention is connected to a supply pipe for supplying a fluid so that the fluid is supplied to the storage tank side. A measuring tube is mounted on one side of the supply pipe, and a sensor housing is installed in the measuring tube in which a sensor for detecting a flow rate and oil pressure is installed. A washing water supply passage is provided inside the sensor housing, and an upper end of the washing water supply passage is connected to the washing water supply unit through a solenoid valve, and a spray nozzle is installed at a lower end thereof so as to be close to the detection sensor. Since the solenoid valve is opened and closed by the control of the microcomputer, the washing water is sprayed to the sensing sensor through the washing water supply path and the spray nozzle, so that foreign matters stuck to the sensing sensor are removed by the washing water.
    权利要求:
    Claims (10)
    [1" claim-type="Currently amended] Supply pipe for supplying a fluid such as chemical liquid, cooling water and waste water, a detection sensor 60 for measuring the hydraulic pressure and the flow rate of the fluid flowing through the supply pipe, the sensor housing 60 is installed in the lower sensor housing (50) ), The flow rate measuring device consisting of a measuring tube 40 is mounted to the center of the body, the sensor housing 50, the sensor housing 50 mounted to the measuring tube 40, the surface of the sensor 60 And washing means for removing foreign matter stuck to the surrounding; Washing water supply unit 80 for supplying the washing water to the washing means; And a control means for controlling the washing means and the washing water supply unit to wash the detection sensor by the washing means and the washing water supply unit at regular intervals.
    [2" claim-type="Currently amended] According to claim 1, The washing means is provided in the interior of the sensor housing 50, the washing water supply passage 52 is supplied with the washing water supplied from the washing water supply unit 80 is installed in the vicinity of the measuring tube (40); And installed on the end of the washing water supply passage 52, the flow rate measuring device having a function for cleaning the sensor, characterized in that provided with a spray nozzle 54 positioned to be close to the sensor 60.
    [3" claim-type="Currently amended] The sensor of claim 2, wherein the end of the sensor housing 50 has a V shape, and a bending groove 56 having a predetermined size is formed at a portion at which the sensor 60 protrudes. Flow measuring device having the function of washing.
    [4" claim-type="Currently amended] The solenoid valve of claim 1, wherein the control means is mounted between the washing water supply path 52 and the washing water supply part 80 to open and close the washing water so that the washing water is supplied from the washing water supply part 80 to the washing water supply path 52. 82; And it is connected to the solenoid valve 82, and when a predetermined time elapses by opening the solenoid valve 82 for a predetermined time is composed of a microcomputer 72 so that the washing water is supplied from the washing water supply unit 80 to the washing water supply passage 52 side Flow rate measuring device having a function of cleaning the sensor, characterized in that.
    [5" claim-type="Currently amended] According to claim 1, wherein the cleaning means, the ultrasonic generator 90 is installed on the upper side of the sensor 60 installed in the lower portion of the sensor housing 50, the ultrasonic generator 90 and the sensor 60 is respectively It is connected to the microcomputer 72 provided in the flow meter 70, the ultrasonic generator 90 is operated according to the signal applied from the microcomputer 72 so that the ultrasonic wave is applied to the detection sensor 60 by the ultrasonic sensor Vibration is applied to the housing (50) and the sensor 60, the flow rate measuring device having a function of cleaning the sensor, characterized in that the foreign substances existing on the surface and the periphery of the sensor 60 is removed.
    [6" claim-type="Currently amended] According to claim 1, wherein the cleaning means is a ultrasonic generator 90 is mounted at a predetermined distance from the end of the sensor housing 50, the ultrasonic generator 90 is mounted on the lower end of the sensor housing 50 is a sensor Close to 60, the ultrasonic generator 90 operates according to the signal applied from the microcomputer 72 to generate ultrasonic waves, so that ultrasonic waves are applied to the surface and the periphery of the sensing sensor 60 to detect the sensing sensor 60. Flow rate measuring device having a function of cleaning the sensor, characterized in that to remove the foreign matter present on the surface and surroundings.
    [7" claim-type="Currently amended] The method of claim 6, wherein the microcomputer 72 operates the ultrasonic generator 90 to remove foreign substances existing on the surface and surroundings of the sensing sensor 60 before the ultrasonic sensor 90 operates. After storing the data signal related to the flow rate and the hydraulic pressure from the memory unit 74 in the memory unit 74, the ultrasonic generator 90 is operated to store the foreign matter present in the sensor 60 while the foreign material is stored in the memory unit 74. Flow rate measurement having a function of cleaning the sensor, characterized in that for reading the data on the flow rate and the hydraulic pressure and the flow rate and hydraulic pressure flowing through the supply pipe and the measuring tube 40 is displayed continuously through the flow meter (70) Device.
    [8" claim-type="Currently amended] The air is injected into the detection sensor 60 by connecting the air compressor instead of the washing water supply unit 80 so that the air is supplied to the injection nozzle 54 through the washing water supply path 52. Flow rate measuring device having a function of cleaning the sensor, characterized in that to remove the foreign matter attached to the sensor 60 by the air.
    [9" claim-type="Currently amended] The injection nozzle (54) of claim 1, wherein the inserting portion (58) of the sensor housing (50) inserted into the measuring tube (40) sprays the sensor 60 and the washing water to the sensor 60. This installation is installed, the flow rate measuring device having a function of washing the sensor, characterized in that the detection signal detected from the detection sensor 60 is installed on the side of the insertion portion 58 is applied to the microcomputer (72).
    [10" claim-type="Currently amended] 10. The flow rate measuring apparatus of claim 9, wherein a groove 100 is provided at a side surface of the insertion unit 58 of the sensor housing 50 so that the sensor 60 is mounted. .
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-10-21|Application filed by 김정호, 주식회사 정엔지니어링
    1998-10-21|Priority to KR1019980044058A
    1999-01-25|Publication of KR19990007679A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980044058A|KR19990007679A|1998-10-21|1998-10-21|Flow measuring device with the function of cleaning the sensor|
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