CN203011754U - Pretreatment device for detection of volatile organic compounds in water - Google Patents
Pretreatment device for detection of volatile organic compounds in water Download PDFInfo
- Publication number
- CN203011754U CN203011754U CN 201220700627 CN201220700627U CN203011754U CN 203011754 U CN203011754 U CN 203011754U CN 201220700627 CN201220700627 CN 201220700627 CN 201220700627 U CN201220700627 U CN 201220700627U CN 203011754 U CN203011754 U CN 203011754U
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- CN
- China
- Prior art keywords
- volatile organic
- piston valve
- container bottle
- escape hole
- mouth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pretreatment device for detection of volatile organic compounds in water. The pretreatment device comprises a containing bottle with a screw cover, wherein a sampling bottle penetrates through the screw cover so as to be communicated with an inner cavity of the containing bottle, a pressurizing port and an exhaust port are formed in the side wall of the containing bottle, the position of the pressurizing port is lower than that of the exhaust port, the pressurizing port and the exhaust port are respectively provided with a pressurizing piston valve and an exhaust piston valve, the screw cover is provided with a pressure gage communicated with the inner cavity of the containing bottle, and the pressurizing piston valve and the exhaust piston valve are controlled by and connected with the pressure gage. The exhaust port and the pressurizing port arranged on the containing bottle at upper and lower positions work together with the pressure gage on the screw cover for stably controlling the pressure and gas-liquid equilibrium ratio of the aquatic volatile organic compound in the pretreatment process, the pretreatment device can be used for stable and repeated experiments, the analysis result is accurate, the operation is convenient, and the usage is safe.
Description
Technical field
The utility model relates to a kind of pretreatment unit that volatile organic matter in waste water is detected.
Background technology
For chemical enterprise, in waste water, volatile organic matter is to survey project, and most important, is directly connected to whether qualified discharge of water quality.National standard and the pretreatment unit in the environmental protection tests standard that in water, volatile organic matter detects are fairly simple, be difficult to control the gas liquid ratio balance, it directly fills sample with a color comparison tube, the colorimetric mouth of pipe is sealed with rubber stopper, use two long syringes, one as the gas boosting mouth, one as the liquids and gases escape hole, in the process of operation, the syringe exhaust is young easily bursts apart, bring increase and the personal injury danger of workload to operating personnel, admission pressure is difficult to control simultaneously, causes the reappearance of analysis result relatively poor.Especially for operating mode enterprise, sample is many and complicated, and pretreatment unit can't accurately be controlled air inlet, discharge opeing, often the situation that sample needs are repeatedly processed can occur, and is difficult to adapt to analysis requirement in enormous quantities and reproducibility of analysis results requirement.
Summary of the invention
Can't accurately control air inlet and discharge opeing for volatile organic matter pretreatment unit in waste water in prior art, the repeated detection reproducibility of analysis results is poor, can't adapt to analysis requirement in enormous quantities, and operating difficulties, the uneasy congruent shortcoming of use, the utility model provides a kind of simple in structure, easy to operate, safety, can accurately control air inlet and discharge opeing, accuracy of detection is controlled, and the repeated detection reproducibility of analysis results is high, is fit to the pretreatment unit that in the water that requires, volatile organic matter detects of analyzing in enormous quantities.
The technical solution adopted in the utility model is: the pretreatment unit that in a kind of water, volatile organic matter detects, comprise the container bottle with screw-mouth cover, stopple coupon passes screw-mouth cover connection container bottle inner chamber, the sidewall that it is characterized in that described container bottle is provided with pressurization mouth and escape hole, pressurization mouthful position is respectively equipped with the pressurizing piston valve and discharges piston valve lower than escape hole on pressurization mouth and escape hole; Described screw-mouth cover is provided with the tensimeter of a connection container bottle inner chamber, tensimeter control linkage pressurizing piston valve and discharge piston valve.
Be provided with the polytetrafluoro rubber cushion in described screw-mouth cover.
Be provided with from the bottom to top the volume markings sign on the sidewall of described container bottle.
Described container bottle volume 100ml, the every 10ml of volume markings sign sets a sign, and pressurization mouth and escape hole are all higher than volume markings sign 50ml.
Described pressurization mouth is higher than escape hole 6-8mm.
Adopt above technical scheme, the beneficial effects of the utility model are:
1, by the design up and down to pressurization mouth and escape hole, gas passes into from the container bottle end opening, the interior liquid of container bottle is discharged from upper escape hole, when the liquid discharge reaches the volume markings sign scale mark that needs, slowly turn down air intake opening and gas outlet, having solved original gas liquid ratio balance can't control, and the problem that can't repeat to fix makes the reappearance of each analysis result better;
2, by screw socket lid mounted device tensimeter being reached the stable control to head space gases pressure in container bottle, make sample detection processing pressure each time and the Check processing pressure energy of standard model is unified controls, the pretreatment condition that has solved original standard model and test sample is inconsistent and cause the inaccurate drawback of analysis result, makes the precision of analysis of each sample higher; Pressurization mouthful and escape hole divide and are arranged, and on pressurization mouthful and escape hole, piston valve are set, by tensimeter connection control piston valve, can control as required flexibly the ratio into and out of gas-liquid, solve the phenomenon of bursting apart that gas, liquid can't smooth and easy discharge cause, simple to operate, use safety;
3, by to the built-in polytetrafluoro rubber cushion of screw-mouth cover, solved that former rubber blanket adsorb organic compound is yielding, easy aging, the drawback that is difficult for sealing, be convenient to the device dismounting, clean and reuse.
The utility model adopts escape hole and the pressurization mouth that on container bottle, high-low position arranges, coordinate the tensimeter on its screw-mouth cover, pressure to volatile organic matter in water in preprocessing process, vapor liquid equilibrium are controlled than stable, can carry out stable repeated experiment, analysis result is accurate, easy to operate, use safety.
Description of drawings
Fig. 1 is the utility model structural representation.
In figure: container bottle 1, pressurization mouth 2, pressurizing piston valve 3, escape hole 4 is discharged piston valve 5, volume markings sign 6, screw-mouth cover 7, polytetrafluoro rubber cushion 8, tensimeter 9, stopple coupon 10.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Shown in Figure 1, the pretreatment unit that in a kind of water, volatile organic matter detects comprises container bottle 1, pressurization mouth 2, pressurizing piston valve 3, escape hole 4, discharges piston valve 5, volume markings sign 6, screw-mouth cover 7, polytetrafluoro rubber cushion 8, tensimeter 9 and stopple coupon 10.Screw-mouth cover 7 is through polytetrafluoro rubber cushion 8 packaging container bottle 1 bottlenecks, stopple coupon 10 passes screw-mouth cover 7 connection container bottle 1 inner chambers, the sidewall of container bottle 1 is provided with pressurization mouth 2 and escape hole 4, container bottle 1 volume 100ml, be provided with from the bottom to top volume markings sign 6 on the sidewall of container bottle 1, volume markings sign 6 every 10ml set a sign, pressurization mouth 2 and escape hole 4 are all higher than volume markings sign 50ml, pressurization mouthful 2 positions are respectively equipped with pressurizing piston valve 3 and discharge piston valve 5 lower than escape hole 4 position 6-8mm on pressurization mouth 2 and escape hole 4; Screw-mouth cover 7 is provided with the tensimeter 9 of connection container bottle 1 inner chamber, tensimeter 9 control linkage pressurizing piston valves 3 and discharge piston valve 5.
Claims (5)
1. the pretreatment unit that in a water, volatile organic matter detects, comprise the container bottle with screw-mouth cover, stopple coupon passes screw-mouth cover connection container bottle inner chamber, it is characterized in that: the sidewall of described container bottle is provided with pressurization mouth and escape hole, pressurization mouthful position is respectively equipped with the pressurizing piston valve and discharges piston valve lower than escape hole on pressurization mouth and escape hole; Described screw-mouth cover is provided with the tensimeter of a connection container bottle inner chamber, tensimeter control linkage pressurizing piston valve and discharge piston valve.
2. the pretreatment unit that in a kind of water according to claim 1, volatile organic matter detects is characterized in that: be provided with the polytetrafluoro rubber cushion in described screw-mouth cover.
3. the pretreatment unit that in a kind of water according to claim 1, volatile organic matter detects is characterized in that: be provided with from the bottom to top the volume markings sign on the sidewall of described container bottle.
4. the pretreatment unit that in a kind of water according to claim 3, volatile organic matter detects is characterized in that: described container bottle volume 100ml, and the every 10ml of volume markings sign sets a sign, and pressurization mouthful and escape hole all identify 50ml higher than volume markings.
5. the pretreatment unit that according to claim 1 or 4 described a kind of water, volatile organic matter detects is characterized in that: described pressurization mouth is higher than escape hole 6-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700627 CN203011754U (en) | 2012-12-18 | 2012-12-18 | Pretreatment device for detection of volatile organic compounds in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700627 CN203011754U (en) | 2012-12-18 | 2012-12-18 | Pretreatment device for detection of volatile organic compounds in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011754U true CN203011754U (en) | 2013-06-19 |
Family
ID=48603337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220700627 Expired - Fee Related CN203011754U (en) | 2012-12-18 | 2012-12-18 | Pretreatment device for detection of volatile organic compounds in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644619A (en) * | 2017-01-17 | 2017-05-10 | 中国地质科学院岩溶地质研究所 | Portable water-soluble gas static headspace outdoor sampling device |
-
2012
- 2012-12-18 CN CN 201220700627 patent/CN203011754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644619A (en) * | 2017-01-17 | 2017-05-10 | 中国地质科学院岩溶地质研究所 | Portable water-soluble gas static headspace outdoor sampling device |
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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: 20130619 Termination date: 20201218 |