CN214703007U - Enrichment facility that semi-volatile organic compounds detected in soil - Google Patents
Enrichment facility that semi-volatile organic compounds detected in soil Download PDFInfo
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- CN214703007U CN214703007U CN202120677264.6U CN202120677264U CN214703007U CN 214703007 U CN214703007 U CN 214703007U CN 202120677264 U CN202120677264 U CN 202120677264U CN 214703007 U CN214703007 U CN 214703007U
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Abstract
The utility model relates to the field of environmental equipment detection, in particular to a concentration device for detecting semi-volatile organic compounds in soil; comprises an air inlet pipeline system, a sample placing system and a waste liquid condensing vacuum system which are sequentially connected together through connecting pipes; the front of the containing cavity in the sample placing system is made of organic glass, so that the height of the liquid level in the receiving bottle can be seen in real time, the height of the air inlet needle is further adjusted, and the convenience and trouble saving are realized; the hole of the fixing body in the sample placing system is made of soft materials and can be enlarged by the extraction liquid receiving bottle, so that the requirements of different extraction instrument sample receiving bottles are met; the gas circuit can be connected according to the quantity of sample, and the sample is independent each other, avoids the interference between the different samples, can adjust the size of every gas circuit, and the operating pressure of vacuum pump only is less than atmospheric pressure a little can, and the requirement with the vacuum pump of current parallel evaporative concentration appearance reduces a lot, practices thrift the cost on the one hand, and on the other hand life is longer and cost of maintenance is all lower.
Description
Technical Field
The utility model relates to an environmental equipment detection area, concretely relates to enrichment facility that semi-volatile organic compounds detected in soil.
Background
semi-Volatile Organic Compounds (VOCs) are the pollutant that the harmful force is stronger in the soil, the VOCs pollutant in the soil often can hide in soil gas, liquid, in the material such as solid, have very much disguise, strong volatility has, in case the temperature accords with pressure condition, VOCs can directly volatilize from soil, get into the atmosphere, and because the VOCs pollutant mostly has stronger toxicity, especially in the pollutant volatilizees the atmosphere, very easily form chemical smog, cause serious influence to the atmospheric environment, and in case volatilize in the atmosphere, along with the continuous promotion of volatility, final concentration will exceed human bearable scope, finally cause the health threat to the human body.
The existing concentration device for detecting the semi-volatile organic compounds in some soils has the problems that gas is wasted, the height of the liquid level in a receiving bottle cannot be observed in real time, the requirements of different extraction instrument sample receiving bottles cannot be met, a special receiving bottle needs to be arranged on a nitrogen blowing instrument, the loss of target objects in samples is caused, and a working gas circuit cannot be adjusted.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a enrichment facility that semi-volatile organic compounds detected in soil for the concentration of soil sample extraction liquid.
For solving the technical problem, the utility model discloses the technical scheme who adopts does: a concentration device for detecting semi-volatile organic compounds in soil comprises an air inlet pipeline system, a sample placing system and a waste liquid condensation vacuum system which are sequentially connected together through connecting pipes;
the air inlet pipeline system comprises a first support, a plurality of gas shunts are fixed on the first support from top to bottom, the gas shunts are communicated with one another through vertically arranged pipelines, and the right side surface of each gas shunt is communicated with a plurality of gas guide pipes; the top of the gas splitter positioned at the uppermost end is provided with a gas inlet pipe;
the sample placing system comprises a plurality of containing cavities which are arranged in a step shape from top to bottom and used for placing receiving bottles, electric heating furnace wires are laid in the bottoms of the containing cavities and provided with power switches, one side surface of each containing cavity is made of transparent organic glass, the other side surfaces of each containing cavity are made of stainless steel plates, each containing cavity is provided with a fixing body and a cover, the shape and the size of each fixing body are consistent with those of the inside of each containing cavity, the middle part of each fixing body is provided with a circular through hole, each cover is used for covering the top of each receiving bottle and provided with an air inlet needle and an exhaust pipe, and the upper end of each air inlet needle is provided with a regulating valve;
the waste liquid condensation vacuum system comprises a second support and a third support, a waste gas collection body is fixed on the second support, a plurality of gas inlet pipes are arranged on the waste gas collection body, a condensation pipe is fixed on the third support, a waste liquid collection bottle is connected to the bottom of the condensation pipe, the condensation pipe is also connected with a condensed water machine and a vacuum pump, and a condensed water inlet pipe and a condensed water outlet pipe are communicated between the condensation pipe and the condensed water machine;
the gas guide pipe is connected with the gas inlet needle, the waste gas exhaust pipe and the gas inlet pipe through connecting pipes.
The working process and principle are as follows: connect the back well with the device, be connected gas shunt and the nitrogen gas inlet manifold of air inlet pipe-line system, the sample placement system hold the chamber and add distilled water, set for the uniform temperature, open the admission valve, put into the extract and receive, the lid is good, adjusts the governing valve of adjusting the nitrogen gas size on the admission needle to the suitable size of nitrogen gas velocity, opens the comdenstion water, opens the vacuum pump, nitrogen gas and temperature make the solvent in the extract volatilize out, absorbed condensing equipment condensation by vacuum system and retrieved. In the using process, the height difference of the liquid level of the air inlet needle is observed, and the height of the air inlet needle is adjusted at any time, so that the height difference between the air inlet needle and the liquid level is proper.
Compared with the prior art the utility model discloses following beneficial effect has:
(1) the air outlet end of the first part of the air inlet pipeline system connecting pipe 12 (branch hose) is provided with a plug which can be plugged when not in use, so that the waste of air is prevented; (2) the front of the containing cavity in the sample placing system is made of organic glass, so that the height of the liquid level in the receiving bottle can be seen in real time, the height of the air inlet needle is further adjusted, and the convenience and trouble saving are realized; (3) the hole of the fixing body in the sample placing system is made of soft materials, can be expanded by the extraction liquid receiving bottle, meets the requirements of different extraction instrument sample receiving bottles, does not need to be provided with a special receiving bottle on a nitrogen blowing instrument, saves the transfer of extraction liquid, reduces the loss of target objects in the sample, improves the recovery rate, and is convenient and trouble-saving; (4) the gas circuits can be connected according to the number of samples, and the gas circuits which are not needed can be disconnected; (5) the samples are independent from each other, so that the interference among different samples is avoided; (6) the size of each air path can be adjusted, and the air flow requirements of different matrix extracting solutions are met. (7) The operating pressure of vacuum pump only slightly be less than atmospheric pressure can, with the requirement of the vacuum pump of current parallel evaporation concentrator reduce a lot, practice thrift the cost on the one hand, on the other hand life is longer and cost of maintenance all is lower (8) the device has gathered the advantage of current manual nitrogen blowing appearance, parallel evaporation concentrator and full-automatic nitrogen blowing appearance, combine the problem that these current instruments exist in the in-service use to design this device, the problem that current device exists has been compensatied to this device.
Drawings
Fig. 1 is a schematic structural diagram of the concentrating device for detecting semi-volatile organic compounds in soil according to the present invention.
Fig. 2 is a schematic view of the structure of the flow divider.
FIG. 3 is a side view of the air intake conduit system.
Fig. 4 is a top view of the sample placement system.
Fig. 5 is a schematic view of the fixing body.
Fig. 6 is a schematic view of the lid.
FIG. 7 is a schematic diagram of an exhaust gas manifold.
The figures are labeled as follows:
1-a first support, 2-a gas splitter, 3-a gas conduit, 4-a containing cavity, 5-a heating wire, 6-a power switch, 7-a fixed body, 8-a cover, 9-a receiving bottle, 10-an air inlet needle, 11-an exhaust gas discharging pipe, 12-a connecting pipe, 13-a second support, 14-an exhaust gas collecting body, 15-an air inlet pipe, 16-a third support, 17-a condensation pipe, 18-a waste liquid collecting bottle, 19-a water condensation machine, 20-a vacuum pump, 21-a condensed water inlet pipe, 22-a condensed water outlet pipe, 23-a vacuum pump controller, 24-an infrared sensing device and 25-a hook.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Examples
As shown in fig. 1, a concentration device for detecting semi-volatile organic compounds in soil comprises an air inlet pipeline system, a sample placing system and a waste liquid condensation vacuum system which are sequentially connected together through a connecting pipe 12;
the air inlet pipeline system comprises a first support 1, a plurality of gas shunts 2 are fixed on the first support 1 from top to bottom, the gas shunts 2 are communicated with one another through vertically arranged pipelines, and the right side surface of each gas shunt 2 is communicated with a plurality of gas guide pipes 3; the top of the gas splitter 2 positioned at the uppermost end is provided with a gas inlet pipe; the air inlet main pipe is connected with the air inlet pipe of the uppermost air splitter 2 through a nut, and can be disassembled and assembled. The gas conduit 3 is connected with the rubber hose and connected with the rubber hose in a plug-in mode.
The sample placement system comprises a plurality of accommodating cavities 4 which are arranged in a ladder shape from top to bottom and used for accommodating receiving bottles 9, electric heating furnace wires 5 are laid in the bottoms of the accommodating cavities 4 and are provided with power switches 6, one side surface of each accommodating cavity 4 is made of transparent organic glass, the inside extraction liquid receiving bottles 9 can be seen (the inside of the receiving bottles cannot be seen in the use of the existing nitrogen blowing concentration device), the other side surfaces of each accommodating cavity 4 are made of stainless steel plates, each accommodating cavity 4 is provided with a fixing body 7 and a cover 8, the shape and the size of the fixing body 7 are consistent with the shape and the size of the inside of the accommodating cavity 4, a circular through hole is formed in the middle of the fixing body, the cover 8 is used for covering the top of the receiving bottles 9 and is 8cm, the cover is suitable for the extraction liquid receiving bottles 9 with different calibers, an air inlet needle 10 and an exhaust pipe 11 are arranged on the cover 8, and the air inlet needle 10 can adjust the height up and down, the upper end of the air inlet needle 10 is provided with an adjusting valve which can control the size of nitrogen;
the waste liquid condensation vacuum system comprises a second support 13 and a third support 16, a waste gas collection body 14 is fixed on the second support 13, a plurality of air inlet pipes 15 are arranged on the waste gas collection body 14, a condensation pipe 17 is fixed on the third support 16, a waste liquid collection bottle 18 is connected to the bottom of the condensation pipe 17, the condensation pipe 17 is further connected with a condensed water machine 19 and a vacuum pump 20, and a condensed water inlet pipe 21 and a condensed water outlet pipe 22 are communicated between the condensation pipe 17 and the condensed water machine 19;
the gas conduit 3 is connected with the gas inlet needle 10, the waste gas exhaust pipe 11 and the gas inlet pipe 15 through connecting pipes 12.
The waste gas evaporated from the second part is collected at the waste gas collecting body 14, enters the condensation pipe 17, is condensed and is collected in the waste liquid receiving bottle 18. The vacuum degree controlled by the vacuum pump 20 is slightly lower than the atmospheric pressure, and the vacuum pump mainly has the functions of accelerating the outflow of waste gas and accelerating the concentration speed without depending on vacuum concentration. This is different from the existing vacuum concentration apparatus. This is also an improvement, as some substances are concentrated by nitrogen purge recovery and recovery by vacuum is not ideal
The parallel evaporator on the market at present mainly relies on vacuum and temperature to realize the concentration of extraction liquid, but some material can lose under the low vacuum, and the rate of recovery does not reach the requirement, and the vacuum degree of this device is only slightly lower than atmospheric pressure, mainly is used for blowing than nitrogen and the exhaust gas that the temperature evaporation came out is sucked away, accelerates the rate of concentration.
Furthermore, four gas splitters 2 are fixed on the first support 1 from top to bottom, the length and the width of each gas splitter 2 are 10cm, the height of each gas splitter 2 is 5cm, and the distance between every two adjacent gas splitters 2 is 20 cm.
Furthermore, the sample placing system is provided with four layers of accommodating cavities 4 which are arranged in a stepped manner from top to bottom, each layer comprises six accommodating cavities 4 which can accommodate 24 receiving bottles 9, the length and the width of each accommodating cavity 4 are 10cm, and the height of each accommodating cavity is 20 cm.
Furthermore, the containing cavity 4 is a rectangular cavity, the fixing body 7 is rectangular (the length and the width are both 10 cm), the fixing body is made of soft rubber materials, and a hole in the center can be enlarged by the extract liquid receiving bottle. The concentrated bottle of current nitrogen-blowing device is fixed pattern more, need follow the extract receiving flask and shift to concentrated bottle in, even the position that places concentrated bottle that has adopts the spring, can put great extract receiving flask, but can place the space and also be not enough, also can not satisfy actual need, the utility model discloses can solve this problem, can place the extract receiving flask of different bore sizes, and need not shift the extract to concentrated bottle, reduced sample target loss.
Further, a vacuum pump controller 23 is connected to the vacuum pump 20.
Further, an infrared sensing device 24 for sensing the liquid level of the reaction is arranged on the cover 8.
Further, the connecting pipe 12 is a rubber hose; and the end of the connecting pipe 12 connected with the gas conduit 3 is provided with a plug, so that when the gas conduit is not used, the end of the connecting pipe 12 is plugged to avoid gas waste, and when the gas conduit is used, the gas conduit is connected with the gas inlet needle 10.
Further, a plurality of hooks 25 are fixed on the first support 1, and the air conduit 3 is connected with a rubber hose and is hung on the hooks 25 when not in use.
Claims (8)
1. The utility model provides a enrichment facility that semi-volatile organic compounds detected in soil which characterized in that: comprises an air inlet pipeline system, a sample placing system and a waste liquid condensing vacuum system which are sequentially connected together through a connecting pipe (12);
the air inlet pipeline system comprises a first support (1), a plurality of gas shunts (2) are fixed on the first support (1) from top to bottom, the gas shunts (2) are communicated with one another through vertically arranged pipelines, and the right side surface of each gas shunt (2) is communicated with a plurality of gas guide pipes (3); the top of the gas splitter (2) positioned at the uppermost end is provided with a gas inlet pipe;
the sample placing system comprises a plurality of accommodating cavities (4) which are arranged in a step shape from top to bottom and used for accommodating receiving bottles (9), electric heating furnace wires (5) are laid in the bottoms of the accommodating cavities (4) and provided with power switches (6), one side face of each accommodating cavity (4) is made of transparent organic glass, the other side faces of each accommodating cavity are made of stainless steel plates, each accommodating cavity (4) is provided with a fixing body (7) and a cover (8), the shape and the size of each fixing body (7) are consistent with those of the inside of each accommodating cavity (4), a circular through hole is formed in the middle of each fixing body, each cover (8) is used for covering the top of each receiving bottle (9), an air inlet needle (10) and an exhaust gas exhaust pipe (11) are arranged on each cover (8), and an adjusting valve is arranged at the upper end of each air inlet needle (10);
the waste liquid condensation vacuum system comprises a second support (13) and a third support (16), a waste gas collection body (14) is fixed on the second support (13), a plurality of air inlet pipes (15) are arranged on the waste gas collection body (14), a condensation pipe (17) is fixed on the third support (16), a waste liquid collection bottle (18) is connected to the bottom of the condensation pipe (17), the condensation pipe (17) is further connected with a condensed water machine (19) and a vacuum pump (20), and a condensed water inlet pipe (21) and a condensed water outlet pipe (22) are communicated between the condensation pipe (17) and the condensed water machine (19);
the gas conduit (3) is connected with the gas inlet needle (10), the waste gas exhaust pipe (11) and the gas inlet pipe (15) through connecting pipes (12).
2. The apparatus of claim 1, wherein the concentration device for detecting semi-volatile organic compounds in soil comprises: four gas diverters (2) are fixed on the first bracket (1) from top to bottom.
3. The apparatus of claim 1, wherein the concentration device for detecting semi-volatile organic compounds in soil comprises: the sample placing system is provided with four layers of accommodating cavities (4) which are arranged in a step shape from top to bottom, and each layer comprises six accommodating cavities (4).
4. The apparatus of claim 1, wherein the concentration device for detecting semi-volatile organic compounds in soil comprises: the accommodating cavity (4) is a cuboid cavity, and the fixing body (7) is rectangular.
5. The apparatus of claim 1, wherein the concentration device for detecting semi-volatile organic compounds in soil comprises: the vacuum pump (20) is connected with a vacuum pump controller (23).
6. The apparatus for concentrating detection of semi-volatile organic compounds in soil according to any one of claims 1-5, wherein: the cover (8) is provided with an infrared sensing device (24) for sensing the height of the reaction liquid level.
7. The apparatus for concentrating detection of semi-volatile organic compounds in soil according to any one of claims 1-5, wherein: the connecting pipe (12) is a rubber hose; and a plug is arranged at the end part of the connecting pipe (12) connected with the gas conduit (3).
8. The apparatus for concentrating detection of semi-volatile organic compounds in soil according to any one of claims 1-5, wherein: a plurality of hooks (25) are further fixed on the first support (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677264.6U CN214703007U (en) | 2021-04-02 | 2021-04-02 | Enrichment facility that semi-volatile organic compounds detected in soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120677264.6U CN214703007U (en) | 2021-04-02 | 2021-04-02 | Enrichment facility that semi-volatile organic compounds detected in soil |
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| CN214703007U true CN214703007U (en) | 2021-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132339A (en) * | 2017-07-05 | 2017-09-05 | 贵州师范大学 | It is a kind of to support soil CO of the multiple caliber different depth with GPS2Analyzer |
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2021
- 2021-04-02 CN CN202120677264.6U patent/CN214703007U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132339A (en) * | 2017-07-05 | 2017-09-05 | 贵州师范大学 | It is a kind of to support soil CO of the multiple caliber different depth with GPS2Analyzer |
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