CN211697088U - Fixed vacuum sampling device - Google Patents
Fixed vacuum sampling device Download PDFInfo
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- CN211697088U CN211697088U CN202020218061.6U CN202020218061U CN211697088U CN 211697088 U CN211697088 U CN 211697088U CN 202020218061 U CN202020218061 U CN 202020218061U CN 211697088 U CN211697088 U CN 211697088U
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Abstract
The utility model relates to a chemical production technical field, concretely relates to fixed vacuum sampling device, include the sampling tube of being connected through connecting piece and reation kettle, the one end of sampling tube is connected with material strorage device, during the sampling tube other end inserts reation kettle's material, material strorage device top intercommunication is equipped with the vacuum pipeline of vacuum valve and is equipped with the nitrogen gas pipeline of nitrogen gas valve, the sampling tube is close to material strorage device's one end intercommunication discharging pipe, be equipped with the material valve on the sampling tube, be equipped with the bleeder valve on the discharging pipe, a guarantee reation kettle internal seal nature has been proposed, avoid liquid to leak and be infected with, guarantee the fixed vacuum sampling device of sample purity.
Description
Technical Field
The utility model relates to a chemical production technical field, concretely relates to fixed vacuum sampling device.
Background
At present, most chemical industry production enterprises adopt a crude mode for sampling semi-sealed systems such as reaction kettles and the like: a glass bottle is hung by a string and put into the kettle for sampling. The problems with this sampling approach are: 1. causing the gas in the kettle to leak; 2. a large amount of process liquid is adhered outside the bottle and on the rope, so that impurities are inevitably introduced into a production system, and the sampling purity is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the defect that prior art exists, provide a guarantee reation kettle internal seal nature, avoid liquid to leak and be infected with, guarantee the fixed vacuum sampling device of sample purity.
The utility model discloses an adopt following technical scheme to realize: include the sampling tube of being connected through connecting piece and reation kettle, the one end of sampling tube is connected with material strorage device, and the sampling tube other end inserts reation kettle's material, material strorage device top intercommunication is equipped with the vacuum line of vacuum valve and is equipped with the nitrogen gas pipeline of nitrogen gas valve, the one end intercommunication discharging pipe that the sampling tube is close to material strorage device, be equipped with the valve of getting on the sampling tube, be equipped with the bleeder valve on the discharging pipe.
The utility model discloses during the use, close the valve of getting, nitrogen gas valve and bleeder valve, open the pressure in the vacuum valve reduces material strorage device, insert the sampling tube into reation kettle later and treat the material of sample, close the vacuum valve and open the valve of getting, because pressure acts on, extract the material and close the valve of getting behind material strorage device, place the sampling bottle in discharging pipe department, open the nitrogen gas valve and fill into nitrogen gas in to material strorage device and close the nitrogen gas valve after increasing certain pressure, open the bleeder valve, the material falls into the sampling bottle, the sampling bottle acquires after sufficient material, close the bleeder valve, open the nitrogen gas valve and continue increase pressure, thereby make unnecessary material fall into reation kettle again in, accomplish the sample.
The material storage device is connected with a pressure gauge for measuring the pressure in the material storage device. The pressure condition in the material storage device is convenient to master in time, so that the valve switch of each pipeline can be controlled according to the pressure condition, and the materials are extracted and put back.
The lateral wall of the material storage device is provided with a window for observation. The material storage condition in the material storage device is observed through the window.
The discharging pipe is characterized in that a material return pipe is arranged below the discharging pipe, one end of the material return pipe is communicated with the sampling pipe, the other end of the material return pipe is communicated with a material receiving funnel, the material receiving funnel is located under the discharging pipe opening of the discharging pipe, and a material return valve is arranged on the material return pipe. When the sampling bottle is filled with the materials, the material return valve is opened, partial materials which can be left over in the discharge pipe fall into the material receiving funnel, the material receiving pipe is converged into the sampling pipe along the leakage prevention, and then the partial materials fall into the reaction kettle, so that the materials are prevented from being wasted.
The vacuum valve and the nitrogen valve are needle valves.
The material taking valve and the material discharging valve are ball valves.
The pressure gauge is a vacuum pressure gauge.
The bottom of the material storage device is conical, and the conical vertex is communicated with the sampling tube. When releasing the material in the material strorage device, the material falls back along conical side, ensures that the material release in the material strorage device is clean, avoids having to deposit and has remained, prevents to take a sample next time to the influence, guarantees material purity.
The connecting piece is a connecting flange, the sampling tube penetrates through the connecting flange to be fixedly connected with the connecting flange, and the connecting flange is fixedly connected with the inlet of the reaction kettle.
The utility model has the advantages that:
(1) materials in the reaction kettle are extracted through the sampling tube, connecting objects such as strings are not needed, impurities are prevented from being introduced into the reaction kettle, and the purity of the materials in the reaction kettle is guaranteed.
(2) After the sampling is finished, redundant materials fall into the reaction kettle along the sampling tube, and the materials are prevented from being wasted.
(3) The material of retrieving can not remain in the sampling tube, prevents to sample next time and causes the pollution, influences sample purity.
(4) The reaction kettle is fixedly connected with the sampling tube through the connecting piece, the sealing performance of the reaction kettle is ensured, and the gas in the kettle is prevented from leaking.
(5) The device has simple design and convenient operation.
Drawings
FIG. 1 is a block diagram of the present invention;
in the figure: 101: a material storage device; 102: a window; 103: a pressure gauge; 104: a vacuum line; 105: a nitrogen line; 106: a sampling tube; 107: a discharge pipe; 108: a material return pipe; 001: a vacuum valve; 002: a nitrogen gas valve; 003: a material taking valve; 004: a discharge valve; 005: and a material returning valve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in FIG. 1, fixed vacuum sampling device, include the sampling tube 106 of being connected through connecting piece and reation kettle, the connecting piece is flange, and sampling tube 106 passes flange and flange fixed connection, sampling tube 106 pipe wall and flange welding. The connecting flange is fixedly connected with the inlet of the reaction kettle. The sampling tube 106 is fixedly connected with the reaction kettle through a connecting flange, so that the tightness of the reaction kettle is ensured, and gas in the kettle is prevented from leaking. One end of the sampling pipe 106 is connected with a material storage device 101, the other end of the sampling pipe 106 is inserted into the material of the reaction kettle, a vacuum pipeline 104 provided with a vacuum valve 001 and a nitrogen pipeline 105 provided with a nitrogen valve 002 are communicated above the material storage device 101, one end of the sampling pipe 106 close to the material storage device 101 is communicated with a discharge pipe 107, a material taking valve 003 is arranged on the sampling pipe 106, and a discharge valve 004 is arranged on the discharge pipe 107.
The material storage device 101 is connected with a pressure gauge 103 for measuring the pressure in the material storage device 101. The pressure gauge 103 is a vacuum pressure gauge. The pressure condition in the material storage device is convenient to master in time, so that the valve switch of each pipeline can be controlled according to the pressure condition, and the materials are extracted and put back. The vacuum valve 001 and the nitrogen valve 002 are needle valves. The material taking valve 003 and the material discharging valve 004 are ball valves. The bottom of the material storage device 101 is arranged in a conical shape, and the conical vertex is communicated with the sampling pipe 106. When releasing the material in material strorage device 101, the material falls back along conical side, ensures that the material release in the material strorage device is clean, avoids having the deposit to have and remains, prevents to take a sample next time to the influence, guarantees material purity.
The side wall of the material storage device 101 is provided with a window 102 for observation. The material storage in the material storage device 101 is observed through the window 102.
A material return pipe 108 is arranged below the discharge pipe 107, one end of the material return pipe 108 is communicated with the sampling pipe 106, the other end of the material return pipe is communicated with a material receiving funnel, the material receiving funnel is positioned under the discharge pipe opening of the discharge pipe 107, and a material return valve 005 is arranged on the material return pipe 108. When the sampling bottle is full, the material return valve 005 is opened, partial materials left in the discharge pipe 107 fall into the material receiving funnel, the material receiving pipe 108 is converged into the sampling pipe 106 along the leakage prevention, and then the materials fall into the reaction kettle, so that the materials are prevented from being wasted.
The utility model discloses a use as follows: during sampling, the nitrogen valve 002, the material taking valve 003, the material discharging valve 004 and the material returning valve 005 are in a closed state, the vacuum valve 001 is opened, the pressure gauge 103 is observed, when the pressure in the material storage device 101 is in the range of-0.085 to 0.095MPa, the vacuum valve 001 is closed, the material taking valve 003 is opened, and materials in the reaction kettle are sucked into the material storage device 101; then closing the material taking valve 003, slightly opening the nitrogen gas valve 002, increasing the pressure in the material storage device 101, and closing the nitrogen gas valve 002 when the pressure gauge 103 detects that the pressure is increased to be within the range of 0.005-0.01 MPa; placing a sampling bottle at the pipe orifice of the discharge pipe 107, opening the material return valve 005 and slowly opening the discharge valve 004, closing the discharge valve 004 after enough materials are received, removing the sampling bottle, dripping residual materials into a material receiving funnel below, and closing the material return valve 005 after no materials drip; opening the material taking valve 003 and slightly opening the nitrogen valve 002, increasing the pressure of the material storage device 101, enabling the material to fall back along the sampling pipe 106, observing that no material exists in the material storage device 101 from the window 102, then opening the nitrogen valve 002 for 5-6 s, ensuring that all the residual materials in the sampling pipe 106 are put back into the reaction kettle, closing the nitrogen valve 002 and the material taking valve 003, and finishing sampling.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (9)
1. A fixed vacuum sampling device which characterized in that: include sampling tube (106) of being connected through connecting piece and reation kettle, the one end of sampling tube (106) is connected with material strorage device (101), and during sampling tube (106) other end inserted reation kettle's material, material strorage device (101) top intercommunication is equipped with vacuum pipeline (104) of vacuum valve (001) and is equipped with nitrogen gas pipeline (105) of nitrogen gas valve (002), one end intercommunication discharging pipe (107) that sampling tube (106) are close to material strorage device (101), be equipped with on sampling tube (106) and get material valve (003), be equipped with bleeder valve (004) on discharging pipe (107).
2. The stationary vacuum sampling apparatus of claim 1, wherein: the material storage device (101) is connected with a pressure gauge (103) for measuring the pressure in the material storage device (101).
3. The stationary vacuum sampling apparatus of claim 1 or 2, wherein: the side wall of the material storage device (101) is provided with a window (102) for observation.
4. The stationary vacuum sampling apparatus of claim 1 or 2, wherein: a material return pipe (108) is arranged below the discharge pipe (107), one end of the material return pipe (108) is communicated with the sampling pipe (106), the other end of the material return pipe is communicated with a material receiving funnel, the material receiving funnel is located under the discharge pipe opening of the discharge pipe (107), and a material return valve (005) is arranged on the material return pipe (108).
5. The stationary vacuum sampling apparatus of claim 1 or 2, wherein: the vacuum valve (001) and the nitrogen valve (002) are needle valves.
6. The stationary vacuum sampling apparatus of claim 1 or 2, wherein: the material taking valve (003) and the material discharging valve (004) are ball valves.
7. The stationary vacuum sampling apparatus of claim 2, wherein: the pressure gauge (103) is a vacuum pressure gauge.
8. The stationary vacuum sampling apparatus of claim 1 or 2, wherein: the bottom of the material storage device (101) is arranged in a conical shape, and the conical top is communicated with the sampling pipe (106).
9. The stationary vacuum sampling apparatus of claim 1 or 2, wherein: the connecting piece is a connecting flange, the sampling tube (106) penetrates through the connecting flange to be fixedly connected with the connecting flange, and the connecting flange is fixedly connected with an inlet of the reaction kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218061.6U CN211697088U (en) | 2020-02-27 | 2020-02-27 | Fixed vacuum sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218061.6U CN211697088U (en) | 2020-02-27 | 2020-02-27 | Fixed vacuum sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211697088U true CN211697088U (en) | 2020-10-16 |
Family
ID=72778660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020218061.6U Active CN211697088U (en) | 2020-02-27 | 2020-02-27 | Fixed vacuum sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211697088U (en) |
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2020
- 2020-02-27 CN CN202020218061.6U patent/CN211697088U/en active Active
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