• 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:
    Ground air sampling equipment has a fixed sample container without a gas chamber for intermediate storage of an exchange gas. Two identical quickly interchangeable sample containers are used, and a gas chamber for intermediate storage of an inert gas is combined with the containers to form a unit. Sampling using the equipment is much faster than with existing equipment, e.g. 20-25 measurements per hour as opposed to 20 per day. Thin channels are used for both the sensor and pump unit, i.e. having a dia. of 1 to 2mm at most. The turbulence is therefore limited so that a mixing of the specimen medium with the still volume of gas does not affect the specimen taken.
    公开号:SU974198A1
    申请号:SU787770104
    申请日:1978-02-28
    公开日:1982-11-15
    发明作者:Манфред Радтке
    申请人:Феб Геофизик Лейпциг (Инопредприятие)；
    IPC主号:
    专利说明:

    39741984
    The advantage of solving in accordance with the image is two flexible highways 7 and 8.
    fencing is saving time. In a pub-needle-like ground probe, maximally corresponding to a known level of IUO technology, results of about 20 measurements per day are reported. Due to this, method E according to peuieiffleM according to the invention, depending on the distance between the KBMi point of measurement, it is possible to conduct 40 measurements per hour. Due to the significant exclusion of the guimes (for example, not completely filling the sampling vessels or transferring abnormal centers to the next measurement point) to C1, a significant improvement in quality is achieved. Due to the presence of two identical identical samples, a loss of test material is prevented during the analysis in the laboratory. The aim of the invention is to develop a method guaranteeing the elimination of crucial deficiencies, such as incomplete filling of test vessels and transfer of anomalous traces, to the next point of the water pipe. The aim is that test vessels inepayj filling them with fresh air are blown and filled with inert gas, mainly with nitrogen, and the evacuation of the test vessels with the help of a vacuum pump located in the device is carried out after the use of the grave vessels used in the device. The inert gas released as a result of the process is withdrawn and intermediately stored in a gas tank, also located in the instrument. Then, using the injection-suction pump located in the device, the space available in the instrument system is removed, and this stage of operation of the corresponding pump capacity and dead tank proceeds to the next stage — intake of soil air, l. sampling. If, due to the geological situation, it is impossible to achieve full filling of the ffbiK vessels, then with the aim of reaching. still, a full inert gas supply from the gas reservoir is possible. After sampling using an already evacuating suction pump from the gas tank, suction 50 ml of nitrogen, and then the dead space of the device is blown and filled. In FIG. 1 shows the device, the appearance; in fig. 2 - device diagram, general view; in fig. 3 - connecting lines The device for the implementation of the method of selecting a gasket consists of two independent circuits: the ground zone, and the pump unit. Both subassemblies are connected to each other, the diameter of which is 12 mm. It has two systems independent of each other: injection and suction. The discharge system of the ground probe is formed by the probe body 2, which fits to the head of the probe 1 and the pneumatic cuff 4, adjacent to the korggus through the pipe coupling 3. Through the center of this system, along the axis of the head of the probe to the suction chamber of the probe head 5, the cannula 6 is sucked. as a coarse ovdstki filter, has sixteen radially arranged holes with a diameter of 1 mm. Fine filtering is carried out with a slotted filter, screwed into the suction chamber, with a spline width of 0.05 mm. In the subassembly of a pumping unit, there are also two injection systems independent of each other and all systems are connected. These two systems also include one third of the accumulation system, which serves to receive and release inert gas. The injection system consists of a connecting pipe 9, a valve 10, a pressure gauge I, a pressure-suction pump 12, and 1SH1X with connecting pipes 25 to 27 and 37. The suction system includes: an connecting pipe 13, a gas valve 14, a pressure pipe - a suction pump 15, a port for the test vessel 16, two test vessels 17, a valve 18, a low pressure gauge 19 and a vacuum pump 20 with a return spring: 1 kina 21, as well as a foot bracket 22 and connecting lines 28-33. The storage system comprises: a valve for gas 23, - a reservoir for gas with a gauge of filling degree 24 and connecting lines 34-36. To ensure the neutral behavior of the probe and pump unit with respect to the soil gas and the purge medium, mainly 10% nitric acid, all parts in contact with these substances are made of acid-resistant steel grades. All seals, i.e. piston cuffs and connecting seals are made primarily of Teflon, and flexible connecting lines are predominantly made of silicone rubber. Through the use of your own materials, the pumping unit is operated without the need for lubrication. The installed gas taps 14 and 23 each provide 4 switching positions, shown in FIG. 2. The connecting part 16 in the form of a gas separator and, thanks to plug-in connections, ensures the quick replacement of gas-collecting vessels 17, which are made predominantly of glass. A probe filled with an inert gas is introduced into a pre-sampled rsn shallow well with a diameter from 14 mm to 16 mm to the bottom. By means of the injection-suction pump 12, when the gas valve 23 is turned to the position C, the pneumatic cuff 4 of the probe is filled with atmospheric air from 0.8 at. To 1.0 at. By turning the same gas valve to position D, it is possible to fill the pipe packing gland (packer) with an inert gas. After connecting the test vessels of the same size filled with an inert gas to the device via the plug connections of the gas separator 16 test vessels the vessels are pumped out at valve positions 14 A and 23 A. This is done by repeatedly turning on the vacuum pump with the leg brace 22. During the pumping process, the neutral gas flows into gas reservoir 24. If this reservoir is completely filled with gas, and the pumping process has not yet been completed, then gas valve 23 is transferred to station B, and the gas thus enters the atmosphere. The degree of vacuum available indicates a man-meter 19. In the next stage, the dead process process in the system is removed using a supercharger but an exhaust pump. Since the pump capacity is 50 ml and the dead volume does not exceed 10 ml, the soil air is drawn in at the last stage of operation, thus the soil air is in the B area of the gas valve 14. This ensures that the soil air sampling is ready. for analysis. When the gas valve 14 is turned to position B, the soil air enters both test vessels 17 at the same time, thanks to which there are two identical holes and the possibility of double determination. The process of filling the test vessels is monitored with a pressure gauge 19. In the case of a full one. filling the gas collection vessels, the gas valve is transferred to its original position A. After closing the containers and removing the collections from the process, the sample collection process is over. The practice of sampling in the field has shown that there is not always enough soil gas to completely fill the sample vessels. If this is the case, then valve 14 is turned to position C and inert gas is added to the samples. The amount of gas supplied is indicated by the measuring tape of the gas reservoir 24. After the end of the sampling, by pressing the button on the valve 10, compressed air is exhausted from the tube gland and the probe is pulled out of the well. The pump 15 is emptied by completely inserting the piston inside. The gas valve 14 is then transferred to position D, and with the help of the same pump, an inert gas is removed from the gas chamber 24. After the valve is moved back to position A, the selected gas is vented to the atmosphere through the probe by completely inserting the piston into the interior. In this stage of work, the system is purged and filled with non-reacting gas. If large contaminants are suspected in the system with substances containing hydrocarbons, this system can be cleaned with a liquid wash medium, mainly 10% HNOj. To do this, it is necessary to carry out the following work: to join the gas collection vessels and pump them out, as described above; immerse the probe tip in the acid electrolyte and transfer the gas valve to position B. If 50 ml of 60 ml of acid have been drawn in, transfer the valve to position A and immerse the water in a water bath. Kra again turn to position B and suck in approximately the same amount of water. Then remove the water from the water bath and additionally suck in atmospheric air. Thereafter, the above described prostration and filling of the system with an inert gas is carried out. As a result of flushing with gas and liquid, the transfer of abnormal concentrations of soil air to the next measurement point is prevented. The workers of Stage 1, concerning the flushing of the vessel with a liquid, explain, in principle, the sampling of water from shallow wells, wells and out-of-ground drainage systems. While using this device, the sampling of the soil air can also be carried out at a minus temperature, water can only be sampled at a freezing point of freezing point. The use of the instrument is explained on the basis of the above description of its operation and on the basis of FIG. 1.2 N 3. The implementation of the solutions according to the invention is carried out in the form of a very narrow, vertically standing instrument. The height of the device is chosen so that you can work with it without tilting. The weight of the device is limited to 12 kg so that it can be easily transported. The probe connected to the device by flexible lines can be replaced by other probes. Due to this, communication can also be created with driven probes. The use of the device is thereby possible under all conditions on the surface. This device can also be used underground, as well as in inclined and horizontal wells. The field of application of the device extends to geophysical, geochemical exploration.
    权利要求:
    Claims (3)
    [1]
    1. The method of sampling soil air using a probe and sampling vessels, OTKaifflBaeMbix before sampling, and a gas carrier as a purge gas, is distinguished by the fact that before sampling the sampling vessels filled with kggs of inert gas, this inert gas is intermediately stored at the pumping process and, if necessary, 11p1 is modified for
    a specific filling of the sampling vessels and, in addition, for purging and filling parts of the instrument and probe that come into contact with the media to be taken.
    [2]
    2. The device according to claim 1, wherein the dp gas tank, fixedly mounted in the device, serves for intermediate storage of inert gas.
    [3]
    3. The device according to claim 1, in accordance with clause 1 so that fluids may also be sampling media.
    I Recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.
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    同族专利:
    公开号 | 公开日
    DE2807217A1|1979-01-04|
    DE2807217B2|1980-07-24|
    DE2807217C3|1981-03-26|
    DD140324A3|1980-02-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2685315C1|2018-03-21|2019-04-17|Федеральное государственное бюджетное учреждение "Государственный научный центр Российской Федерации - Федеральный медицинский биофизический центр имени А.И. Бурназяна"|Method of cryogenic sampling of a gas mixture|DE897492C|1943-11-02|1953-11-23|Ruhrchemie Ag|Automatic continuous gas sampling device with adjustable dosage|
    US3343421A|1965-01-15|1967-09-26|Norvel L Miller|Method and apparatus for extracting soil gas samples|DE3637952C2|1986-11-07|1992-05-21|Chemisches Laboratorium Dr. Erwin Wessling, 4417 Altenberge, De|
    NO175834C|1992-09-02|1994-12-14|Norsk Hydro As|Sampling and preparation equipment for analysis of PAH and other organic compounds, as well as hydrogen fluoride and sulfur oxides|
    DE102013013969B3|2013-08-23|2014-12-11|Albert-Ludwigs-Universität Freiburg|Measuring device with at least one probe for the in-situ removal of gaseous water or other gases from a medium|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD19811677A|DD140324A3|1977-03-29|1977-03-29|DEVICE AND METHOD FOR REMOVING FLOOR AIR|
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