CN214224676U - Negative pressure closed sampler - Google Patents
Negative pressure closed sampler Download PDFInfo
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- CN214224676U CN214224676U CN202023134239.8U CN202023134239U CN214224676U CN 214224676 U CN214224676 U CN 214224676U CN 202023134239 U CN202023134239 U CN 202023134239U CN 214224676 U CN214224676 U CN 214224676U
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- pipeline
- valve
- medium
- steel cylinder
- negative pressure
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Abstract
The utility model belongs to medium sample thief field, concretely relates to airtight sample thief of negative pressure, including medium pipeline, unloading pipeline and sampling steel bottle, the inlet end of sampling steel bottle is equipped with first steel bottle valve, and the end of giving vent to anger is equipped with the second steel bottle valve, and first steel bottle valve is through first quick-operation joint and unloading pipeline intercommunication, and the second steel bottle valve passes through second quick-operation joint and medium pipeline intercommunication, the unloading pipeline with the medium pipeline between communicate through the release pipeline, the release pipeline on be equipped with the pressure relief valve. The utility model provides an among the chemical industry, the sample thief is the difficult problem of sample under the negative pressure condition, has easy operation, is difficult for revealing, the advantage of safety ring guarantor.
Description
Technical Field
The utility model relates to a medium sample thief field, concretely relates to airtight sample thief of negative pressure.
Background
The chemical industry often meets the condition that the operation and construction are carried out under the pressure of zero pressure or negative pressure, such as nitric acid, regenerated flue gas, process gas and the like, under the condition, on-site sampling is very difficult, and during sampling, equipment failure can be caused when the leakage amount of a medium is large, and even the whole device stops running.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve among the prior art problem of difficulty under the negative pressure condition down-sampling, provide following technical scheme:
the utility model provides a negative pressure airtight sample thief, includes medium pipeline, unloading pipeline and sampling steel bottle, the inlet end of sampling steel bottle is equipped with first steel bottle valve, and the end of giving vent to anger is equipped with the second steel bottle valve, and first steel bottle valve passes through first quick-operation joint and unloading pipeline intercommunication, and the second steel bottle valve passes through second quick-operation joint and medium pipeline intercommunication, the unloading pipeline with the medium pipeline between communicate through the release pipeline, the release pipeline on be equipped with the relief valve.
The medium pipeline comprises a safety control valve, a first remote transmission pressure gauge, an adjusting valve, a vacuum generator and a second remote transmission pressure gauge which are sequentially arranged on the medium pipeline, the safety control valve, the first remote transmission pressure gauge, the adjusting valve, the vacuum generator and the second remote transmission pressure gauge are all connected with the control box through leads, and the display correction panel is connected with the control box through leads; one end of the medium pipeline forms a medium inlet, and the other end of the medium pipeline is connected with the first quick joint.
The emptying pipeline comprises an emptying valve and a check valve which are sequentially installed on the emptying pipeline, one end of the emptying pipeline forms an emptying port, and the other end of the emptying pipeline is connected with the second quick coupling.
One end of the pressure relief pipeline connected with the medium pipeline is close to the first quick joint, and one end of the pressure relief pipeline connected with the emptying pipeline is close to the second quick joint.
The control box is connected with DC24V voltage.
The utility model has the advantages of it is following:
(1) the sampler is provided with a remote transmission pressure gauge, can detect the pressure in front of the vacuum generator and the pressure behind the vacuum generator, transmits signals to the control box, and then transmits signals for opening or closing the regulating valve to the control box. And if the control box monitors that the data transmitted by the remote transmission pressure gauge is abnormal, the safety control valve is started, and a stop instruction and a regulating valve closing instruction are sent to the vacuum generator. The protection sample thief that can be effectively quick prevents that the sampling from revealing.
(2) The control box sends out working or stopping instructions to the vacuum through data transmitted by the remote transmission pressure gauge, and the quantity required by the test analysis is ensured.
(3) The system is provided with a calibration panel, can display abnormal alarm information and modify response parameters, and meets the field use requirements.
(4) The sampler is simple to operate and is safe and environment-friendly in the using process.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention.
In the figure: 1. the automatic control system comprises a vacuum generator, 2 an adjusting valve, 3 a safety control valve, 4 a first remote transmission pressure gauge, 5 a second remote transmission pressure gauge, 6 a control box, 7 a calibration and adjustment panel, 8 a pressure relief valve, 9 an emptying valve, 10 a check valve, 11 a second quick connector, 12 a first quick connector, 13 a second steel cylinder valve, 14 a first steel cylinder valve and 15 a sampling steel cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a negative pressure closed sampler comprises a medium pipeline, a vent pipeline and a sampling steel cylinder 15, wherein the medium pipeline is a pipeline for allowing a medium to enter the sampling steel cylinder after the sampler is connected with a sample to be collected; the emptying pipeline is used for discharging redundant medium tail gas after the medium is collected, the emptying pipeline is finally connected with an emptying system, and the emptying system is used for fixedly recovering the tail gas; the sampling cylinder 15 is used to hold the collected sample medium. A first steel cylinder valve 14 is arranged at the gas inlet end of the sampling steel cylinder 15, a second steel cylinder valve 13 is arranged at the gas outlet end of the sampling steel cylinder 15, the first steel cylinder valve 14 is communicated with a vent pipeline through a first quick connector 12, the second steel cylinder valve 13 is communicated with a medium pipeline through a second quick connector 11, the vent pipeline is communicated with the medium pipeline through a pressure relief pipeline, and a pressure relief valve 8 is arranged on the pressure relief pipeline;
the medium pipeline comprises a safety control valve 3, a first remote transmission pressure gauge 4, an adjusting valve 2, a vacuum generator 1 and a second remote transmission pressure gauge 5 which are sequentially arranged on the medium pipeline, the safety control valve 3, the first remote transmission pressure gauge 4, the adjusting valve 2, the vacuum generator 1 and the second remote transmission pressure gauge 5 are all connected with a control box 6 through leads, and a display adjusting panel 7 is connected with the control box 6 through leads; one end of the medium pipeline forms a medium inlet, and the other end of the medium pipeline is connected with the first quick coupling 12.
The emptying pipeline comprises an emptying valve 9 and a check valve 10 which are sequentially installed on the emptying pipeline, one end of the emptying pipeline forms an emptying port, and the other end of the emptying pipeline is connected with a second quick coupling 11.
The end of the pressure relief pipeline connected with the medium pipeline is close to the first quick joint 12, and the end of the pressure relief pipeline connected with the emptying pipeline is close to the second quick joint 11.
The control box 6 is connected with DC24V voltage.
The utility model discloses a theory of operation is:
1. the first quick coupling 12 and the second quick coupling 11 of the sampling steel cylinder 15 are respectively connected to two ends of the sampler.
2. The first cylinder valve 14 and the second cylinder valve 13 on both ends of the sampling cylinder 15 are opened.
3. The atmospheric valve 9 is opened.
4. The start button is pressed and the acquisition is started.
5. And closing the emptying valve 9, and pressing a collection stopping button when the first remote transmission pressure gauge and the second remote transmission pressure gauge respectively indicate required pressure values.
6. The first cylinder valve 14 and the second cylinder valve 13 are closed.
7. The atmospheric valve 9 and the pressure relief valve 8 are opened.
8. After the first remote transmission pressure gauge and the second remote transmission pressure gauge return to zero, the pressure relief valve 8 and the emptying valve 9 are closed in sequence.
9. And (5) detaching the sampling steel cylinder 15 and finishing sampling.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The negative pressure closed sampler is characterized by comprising a medium pipeline, an emptying pipeline and a sampling steel cylinder (15), wherein a first steel cylinder valve (14) is arranged at the air inlet end of the sampling steel cylinder (15), a second steel cylinder valve (13) is arranged at the air outlet end of the sampling steel cylinder (15), the first steel cylinder valve (14) is communicated with the emptying pipeline through a first quick joint (12), the second steel cylinder valve (13) is communicated with the medium pipeline through a second quick joint (11), the emptying pipeline is communicated with the medium pipeline through a pressure relief pipeline, and a pressure relief valve (8) is arranged on the pressure relief pipeline;
the medium pipeline comprises a safety control valve (3), a first remote transmission pressure gauge (4), an adjusting valve (2), a vacuum generator (1) and a second remote transmission pressure gauge (5) which are sequentially arranged on the medium pipeline, the safety control valve (3), the first remote transmission pressure gauge (4), the adjusting valve (2), the vacuum generator (1) and the second remote transmission pressure gauge (5) are all connected with a control box (6) through leads, and a display correction and adjustment panel (7) is connected with the control box (6) through leads; one end of the medium pipeline forms a medium inlet, and the other end of the medium pipeline is connected with the first quick joint (12).
2. The negative pressure closed sampler of claim 1, wherein the vent line comprises a vent valve (9) and a check valve (10) which are sequentially installed on the vent line, and one end of the vent line forms a vent and the other end is connected with the second quick coupling (11).
3. Negative pressure closed sampler according to claim 1 characterized in that the end of the pressure relief duct connected to the medium line is close to the first quick coupling (12) and the end of the pressure relief duct connected to the venting line is close to the second quick coupling (11).
4. Negative pressure closed sampler according to claim 1 characterized in that the control box (6) is connected to a DC24V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023134239.8U CN214224676U (en) | 2020-12-23 | 2020-12-23 | Negative pressure closed sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023134239.8U CN214224676U (en) | 2020-12-23 | 2020-12-23 | Negative pressure closed sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214224676U true CN214224676U (en) | 2021-09-17 |
Family
ID=77704647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023134239.8U Active CN214224676U (en) | 2020-12-23 | 2020-12-23 | Negative pressure closed sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214224676U (en) |
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2020
- 2020-12-23 CN CN202023134239.8U patent/CN214224676U/en active Active
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