CN205229111U - Open -air enrichment device of volatile organic contaminant in groundwater - Google Patents
Open -air enrichment device of volatile organic contaminant in groundwater Download PDFInfo
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- CN205229111U CN205229111U CN201521018415.8U CN201521018415U CN205229111U CN 205229111 U CN205229111 U CN 205229111U CN 201521018415 U CN201521018415 U CN 201521018415U CN 205229111 U CN205229111 U CN 205229111U
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- volatile organic
- tank body
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- enriching apparatus
- organic contaminant
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Abstract
The utility model relates to an open -air enrichment device of volatile organic contaminant in groundwater, which belongs to the technical field of environment monitoring, this enrichment device includes the upward jar body of being connected by screw thread connection and the lower jar of body, upward be provided with a vertical injection hole who has a perfect understanding on jar body, the inlet port, the outlet duct, the lower jar of body is provided with the 2nd injection hole who has a perfect understanding, there are drying device and adsorption equipment in the outlet duct, in diping the sampling water through rope system or handheld mode with the enrichment device, after water sample collection finishes, the inlet port lets in nitrogen gas and brings the organic matter into the drying device drying, and carry out organic matter absorption through adsorption equipment, accomplish the collection process. Volatile organic compounds's in in -process and the sample transfer process loss can be avoided gathering by this enrichment device, and comparatively complete to the organic matter collection in the sample, the testing result is close the truth more, and reference nature strengthens greatly, is suitable for to popularize and apply in relevant field.
Description
Technical field
The utility model belongs to environmental monitoring technology field, relates to a kind of volatile organic contaminant enriching apparatus, is specifically related to volatile organic contaminant field enriching apparatus in a kind of underground water.
Background technology
In geology field study work, for the investigation of underground water, surface water pollution situation, the investigation work of volatile organic contaminant is an important content, to when in underground water, surface water, volatile organic contaminant carries out sample detecting under lowered in field environment, for different environment and different sampling parents, gather and preserve the success having quite strict and detailed regulation to guarantee and gather and preserve.Such as: one, in China Geological Survey Bureau's geologic examination technical standard " DD2008-01 groundwater contamination geologic examination value disciplines " about the collection of volatile organic matter and maintenance requirement be: during sample collection, a part of draining should be distributed by a minor diameter arm before the water delivering orifice of pump, the end of arm is inserted bottom sampling bottle, make water generation overflow, move exit branch slowly and shift out sampling bottle.According to different test items directly or screw bottle cap rapidly after adding corresponding protective agent; Two; the water sample collection specified in the People's Republic of China's state environment protecting standard " the mensuration stripping trapping/vapor-phase chromatography gas chromatography-mass spectrography of FHZHJSZ0159 water quality volatile organic matter ", store method mainly comprise following components: (1) sample collection: during sampling, makes sample overflow in bottle and not stay bubble.If from water swivel sampling, leading waterproof at least temperature stabilization (generally needing 10min) first should be opened, regulate water velocity to be about 500ml/min, from flowing water, gather Duplicate Samples; If sample from open water body, first sample from representational region with the wide-necked bottle of 1L or flask, more carefully water sample is poured in sample bottle from wide-necked bottle or beaker.For not containing the sample of chlorine residue and Field blank, the hydrochloric acid adding 4 4mol/L in every 40mL water sample fixes agent, in case there is biodegradation in water sample.Guarantee in hydrochloric acid not containing trace organic impurities.For the sample and the Field blank that contain chlorine residue, first add ascorbic acid (every 40mL water sample adds 25mg) in the sample to which, until being full of water sample in sample bottle and after overflow, adding 1 4mol/L hydrochloric acid in every 20mL sample and regulate sample pH value <2, then sealed sample bottle.Notice that the PTFE of pad faces down.(2) Sample storage: sample must be cooled to 4 DEG C after sampling, and maintain this temperature until analyze.On-the-spot water sample must with ice block cooling to remain on 4 DEG C before arrival laboratory.Territory, sample holding region must be disturbed without organism.
In sum, there is following drawback in the sampling of the water sample specified in related specifications and preservation: (1) is in water sampling step, sample type broad categories, for variety classes sample, as sampling comprises water swivel sampling, open water body sampling, sample comprises again containing residual chlorine sample with not containing residual chlorine sample etc., and then causes sampling routine complexity, significantly increases the probability of faulty operation; (2) open in water body example gatherer process and need to sample from representative area with 1L wide-necked bottle or flask, again water sample is poured in sample bottle from wide-necked bottle or beaker, aforesaid operations flow process easily causes the volatile organic contaminant volatilization loss be dissolved in water sample to fall, thus reduces the recovery; (3) preservation of water sample sample all adopts vial and Cord blood, needs to prevent fragmentation, low-temperature transport, so just there is the shortcomings such as Sample storage difficulty is large, transportation cost is high in transportation; (5) water sample sample is before detection sample introduction, needs to open sample bottle, again transfers in sample injection bottle or sample cell, opens and the volatilization of volatile organic matter must be caused in transfer process to scatter and disappear, have a strong impact on the recovery at sample bottle.
Utility model content
The utility model is solve the shortcoming in existing field sampling, provide volatile organic contaminant field enriching apparatus in a kind of underground water, this enriching apparatus can to reduce in gatherer process and the loss of volatile organic matter in preservation process, and this enriching apparatus directly can be connected with pick-up unit and detects, detect in apparatus without the need to again sample being transferred to, can ensure the higher recovery, final testing result is more close to truth.
Concrete technical scheme of the present utility model is:
Volatile organic contaminant field enriching apparatus in a kind of underground water, key point is, described enriching apparatus comprises airtight tank body, tank body is provided with the first sample holes of the first valve and the escape pipe with the second valve, is provided with adsorbent equipment in escape pipe.
Described tank body is also provided with the second sample holes with the 3rd valve.
Described tank body is also provided with air admission hole, and be provided with the 4th valve in air admission hole, air admission hole lower end is connected with the draft tube of leading to escape pipe opposing end surface.
Described draft tube end is set to L-type, and the horizontal component of L-type is provided with one group of multiple air dispelling hole.
Described adsorbent equipment front end is connected with drying device, and the output terminal of drying device is connected with the input end of adsorbent equipment.
Be provided with heating arrangement and coupled heating tube in described tank wall, heating tube is looped around in tank wall, and heating tube is connected with attemperating unit, and attemperating unit is electrically connected with heating arrangement.
Described tank body comprises be threaded fixing upper tank body and lower tank.
Described tank body is that stainless steel material is made.
Described tank body is provided with suspension gear, and described suspension gear comprises hanger and traction rope, and hanger is fixed on tank wall, and traction rope one end and hanger are fixed, and the other end is protruding.
The beneficial effects of the utility model are: the enriching apparatus in the utility model utilizes and samples with the first sample holes that can close and the second sample holes, enriching apparatus can be immersed during sampling gathers in object, open the valve of the first sample holes and the second sample holes simultaneously, sample rear closedown simultaneously two sample holes and form tank bodies sealing, volatile organic matter can not be made in sampling process to lose, and ensure that the accurate of sampling volume, adsorbent equipment in escape pipe can carry out the absorption of volatile organic matter, eliminate process sample being transferred to injector, avoid the loss of the volatile organic matter caused in transfer process, volatile organic matter in the sample of collection can be collected by the utility model to greatest extent, greatly reduce the degree of distortion of detection, can referential obviously strengthening of testing result.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the cross-sectional view of A-A in Fig. 2.
In accompanying drawing, the 101, first valve, the 102, second valve, 103, the 3rd valve, the 104, the 4th valve, the 201, first sample holes, 202, the second sample holes, 3, escape pipe, 4, adsorbent equipment, 5, air admission hole, 6, draft tube, 7, air dispelling hole, 10, drying device, 11, heating arrangement, 12, upper tank body, 13, lower tank, 14, hanger, 15, traction rope.
Embodiment
The utility model relates to volatile organic contaminant field enriching apparatus in a kind of underground water, described enriching apparatus comprises airtight tank body, tank body is provided with the first sample holes 201 of the first valve 101 and the escape pipe 3 with the second valve 102, adsorbent equipment 4 is installed in escape pipe 3.
Specific embodiment, as shown in Figure 1 to Figure 3, adsorbent equipment can be activated carbon fiber absorber, NACF is utilized to carry out the absorption of volatile organic matter in nitrogen, tank body is that stainless steel material is made, without the need to worrying fragmentation in transport and preservation process, described tank body comprises the upper tank body 12 and lower tank 13 being threaded fixing, tank body is also provided with air admission hole 5, 4th valve 104 is installed in air admission hole 5, air admission hole 5 lower end is connected with the draft tube 6 of leading to bottom tank body 1, for being horizontally disposed with bottom draft tube 6, and be horizontally disposed with part be provided with one group of multiple air dispelling hole 7,
Air admission hole 5 on tank body, first sample holes 201 and the second sample holes 202 are all provided with port lid, by this enriching apparatus by immersing in water body under rope system, or this enriching apparatus hand-held immerses in water body and samples, the outlet of escape pipe 3 remains on more than the water surface, tank body 1 is provided with the second sample holes 202 with the 3rd valve 103, when enriching apparatus enters water body, first valve 101 and the 3rd valve 103 are opened, second valve 102 is closed, second sample holes 202 is positioned at bottom tank body 1, water sample progresses in tank body 1 by the second sample holes 202, gas in tank body 1 is discharged by the first sample holes 201, water can enter in tank body 1 very easily, when water surface can't see bubble or in water body after static a period of time, be full of by water in tank body 1, now, close the first valve 101 and the 3rd valve 103, enriching apparatus is gone up ground.
After going up ground, the port lid of the first sample holes 201 is built, the port lid of air admission hole 5 removes, nitrogen cylinder is connected at air admission hole 5, 4th valve 104 is opened, nitrogen is filled with in tank body, nitrogen is more stable gas, both can not react with water, also do not react with organism, nitrogen just serves as one here and takes away organic medium, and nitrogen is filled with in water body example, about one effect stirred is had to water body, be conducive to discharging completely of volatile organic matter, nitrogen enters tank base along draft tube 6, and arrange in the horizontal direction one group of multiple air dispelling hole 7 carries out loss, heating arrangement 11 and coupled heating tube is also provided with in tank wall, heating tube is looped around in tank wall, heating tube is connected with attemperating unit, attemperating unit is electrically connected with heating arrangement 11, attemperating unit setting working temperature, heating arrangement 11 heats after opening, heating tube makes each position homogeneous heating of tank body around tank body, after attemperating unit detects that temperature reaches design temperature, heating arrangement 11 quits work, organic volatilization in water body example can be accelerated in heating process, second valve 102 of escape pipe 3 is opened, volatile organic matter in water body example takes away and enters in escape pipe 3 by nitrogen, adsorbent equipment 4 lower end is connected with drying device 10, the output terminal of drying device 10 is connected with the input end of adsorbent equipment 4, with organic nitrogen after drying device 10, by the moisture drying process in gas, then enter in adsorbent equipment 4 with organic nitrogen, adsorbent equipment 4 is by the Adsorption of Organic collection in nitrogen, nitrogen is then released by escape pipe 3.
Tank body is provided with suspension gear, described suspension gear comprises hanger 14 and traction rope 15, hanger 14 is fixed on tank wall, traction rope 15 one end and hanger 14 are fixed, the other end is protruding, also be provided with controller in tank body to be electrically connected with each valve, the control line of controller is protruding and be connected with telepilot through tank body, the power bus that in enriching apparatus, each consumer is used is protruding through tank body, control line, encapsulation process is done in power bus and tank body intersection, when using this enriching apparatus, tank body is in the water body that will detect by the outer end of hand-held traction rope 15 gradually, personnel carry out the opening and closing of each valve by telepilot.
Existing acquisition method is mainly undertaken sampling and putting into storing bottle by wide mouth beaker, and need protection to be transported to detection site to detect, also need during detection sample to be transferred to pick-up unit or to detect in apparatus, enriching apparatus in the utility model adopts with the device that can seal sample holes, and take the mode immersed in water body by device to sample, therefore, when sampling, volatile organic matter in sample does not almost have volatilization loss, and the adsorbent equipment of this device mates with gaseous mass analyzer and is connected, sample can be shifted and can complete testing, avoid the volatilization loss of sample in transfer process, and the tank body of this device is that stainless steel material is made, not fragile in transport and preservation process, therefore, the handling cost of device has obvious reduction, nor the situation of sampler broken invalid can be there is.
Device in the utility model adopts two sample holes to form path, ensure that water sampling reaches accurate volume and is full of tank body sooner, avoid water body example enter the overlong time of tank body and cause partial loss, after sampling terminates, by the stirring of stirring apparatus, the volatile organic matter in water body example is evaporated better, and utilize nitrogen that volatile organic matter is taken away water body and enter adsorbent equipment, draft tube in bottom for being horizontally disposed with and being distributed with air dispelling hole, so just can form comparatively uniform nitrogen gas source in tank base, to the even supplying nitrogen of the water body example in tank body, volatile organic matter in tank body can volatilize more completely and be taken away water body example.
In the sample collected of this enriching apparatus, volatile organic matter is preserved comparatively complete, and volatile organic matter can by stirring, the mode that nitrogen takes away comparatively fully enters adsorbent equipment, therefore, when needs detect, adsorbent equipment is taken out from tank body, carry out Solid-Phase Extraction or the operation of purge and trap supervisor, recycling gas chromatograph detects, detecting the organic amount of gained can to greatest extent close to truth, the organic contaminant collected after adopting prior art to gather water body is about the 20-40% of real content, and the organic contaminant collected after adopting this enriching apparatus to gather water body is about the 70-90% of real content, the effect of collecting is improved greatly, testing result can reflect the real content of Volatile Organic Compounds In Water, directiveness for environmental monitoring work is stronger.
Claims (9)
1. volatile organic contaminant field enriching apparatus in a underground water, it is characterized in that: described enriching apparatus comprises airtight tank body, tank body is provided with the first sample holes (201) with the first valve (101) and the escape pipe (3) with the second valve (102), adsorbent equipment (4) is installed in escape pipe (3).
2. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, is characterized in that: described tank body is also provided with the second sample holes (202) with the 3rd valve (103).
3. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, it is characterized in that: described tank body is also provided with air admission hole 5, be provided with the 4th valve (104) in air admission hole 5, air admission hole (5) lower end is connected with the draft tube (6) of leading to escape pipe 3 opposing end surface.
4. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 3, is characterized in that: described draft tube (6) end is set to L-type, and the horizontal component of L-type is provided with one group of multiple air dispelling hole (7).
5. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, it is characterized in that: described adsorbent equipment (4) front end is connected with drying device (10), the output terminal of drying device (10) is connected with the input end of adsorbent equipment (4).
6. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, it is characterized in that: in described tank wall, be provided with heating arrangement (11) and coupled heating tube, heating tube is looped around in tank wall, heating tube is connected with attemperating unit, and attemperating unit is electrically connected with heating arrangement (11).
7. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, is characterized in that: described tank body comprises the upper tank body (12) and lower tank (13) being threaded fixing.
8. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, is characterized in that: described tank body is that stainless steel material is made.
9. volatile organic contaminant field enriching apparatus in a kind of underground water according to claim 1, it is characterized in that: described tank body is provided with suspension gear, described suspension gear comprises hanger (14) and traction rope (15), hanger (14) is fixed on tank wall, traction rope (15) one end and hanger (14) are fixed, and the other end is protruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018415.8U CN205229111U (en) | 2015-12-09 | 2015-12-09 | Open -air enrichment device of volatile organic contaminant in groundwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018415.8U CN205229111U (en) | 2015-12-09 | 2015-12-09 | Open -air enrichment device of volatile organic contaminant in groundwater |
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| Publication Number | Publication Date |
|---|---|
| CN205229111U true CN205229111U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521018415.8U Expired - Fee Related CN205229111U (en) | 2015-12-09 | 2015-12-09 | Open -air enrichment device of volatile organic contaminant in groundwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205229111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301150A (en) * | 2015-12-09 | 2016-02-03 | 中国地质科学院水文地质环境地质研究所 | Field enrichment device for volatile organic compounds in underground water |
| CN112483079A (en) * | 2020-12-03 | 2021-03-12 | 大庆石油管理局有限公司 | Logging instrument sample gas collection system under gas drilling condition |
-
2015
- 2015-12-09 CN CN201521018415.8U patent/CN205229111U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301150A (en) * | 2015-12-09 | 2016-02-03 | 中国地质科学院水文地质环境地质研究所 | Field enrichment device for volatile organic compounds in underground water |
| CN112483079A (en) * | 2020-12-03 | 2021-03-12 | 大庆石油管理局有限公司 | Logging instrument sample gas collection system under gas drilling condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20191209 |