CN210834323U - Vacuum safety sampling device for chemical reaction kettle - Google Patents
Vacuum safety sampling device for chemical reaction kettle Download PDFInfo
- Publication number
- CN210834323U CN210834323U CN201921870324.5U CN201921870324U CN210834323U CN 210834323 U CN210834323 U CN 210834323U CN 201921870324 U CN201921870324 U CN 201921870324U CN 210834323 U CN210834323 U CN 210834323U
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- reaction kettle
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Abstract
The utility model discloses a vacuum safety sampling device for a chemical reaction kettle, which relates to the technical field of reaction kettle sampling and mainly aims to solve the problem that sampling detection is not easy to be carried out on each stage of a reaction process when the reaction kettle is sampled; this sampling device, include reation kettle, a plurality of sampling unit and be used for to the inside pump that fills nitrogen gas of reation kettle, the reation kettle top is connected with the sampling tube that the bottom extends to its bottom, be linked together through first air duct between pump and the pump, still be provided with the controller on the reation kettle outer wall, contain the control system who is used for controlling each valve, vacuum pump and pump to open and close in the controller. The device utilizes a plurality of sampling units can realize taking a sample and preserving so that subsequent detection in the reation kettle of different periods of time, and the controller can effectively open and close and realize taking a sample and sample volume automatically and can control each valve, need not manual control operation, facilitates the use.
Description
Technical Field
The utility model relates to a reation kettle sample technical field specifically is a vacuum safety sampling device for chemical industry reation kettle.
Background
Chemical reaction kettles are widely used in petroleum, chemical industry, rubber, pesticides, dyes, medicines and foods, and are used for pressure vessels such as reactors, reaction kettles, decomposing kettles, polymerization kettles and the like for completing processes such as vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and the like.
Reaction liquid is often required to be extracted from a reaction kettle for central control detection in chemical production, in the past, the reaction liquid is generally extracted from a kettle hole by lifting a small bottle upwards, the operation is original, gas is easy to leak outwards, and the operation is dangerous and uneasy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe sampling device in vacuum for chemical industry reation kettle to solve reation kettle sample and be difficult for carrying out the problem of sampling test to each stage of reaction process.
In order to achieve the above object, the utility model provides a following technical scheme:
a vacuum safe sampling device for a chemical reaction kettle comprises a reaction kettle, a plurality of sampling units and an inflator pump for filling nitrogen into the reaction kettle, the top of the reaction kettle is connected with a sampling tube the bottom end of which extends to the bottom of the reaction kettle, a master control valve is arranged on the sampling tube, the inflator pump is communicated with the inflator pump through a first air duct, the sampling unit comprises a sampling cylinder body and a vacuum pump, the sampling cylinder body is communicated with the vacuum pump through a second air duct, the sampling cylinder body is also connected with the sampling tube through a shunt conduit, a first air flow valve is arranged on the second air duct, a shunt valve is arranged on the shunt conduit, the inside flowmeter that is provided with of sample barrel, the inside pressure monitoring meter that is provided with of reation kettle, still be provided with the controller on the reation kettle outer wall, the controller contains the control system who is used for controlling each valve, vacuum pump and pump to open and close.
On the basis of the technical scheme, the utility model discloses still provide following optional technical scheme:
in one alternative: the air inlet end of the inflator pump is connected with a nitrogen storage tank.
In one alternative: the control system comprises a receiving unit, a timing unit, an analysis and comparison unit, a central processing unit and a control output unit, wherein the receiving unit is used for receiving signals transmitted by the pressure monitoring meter and the flowmeter, and the analysis and comparison unit is used for analyzing and comparing the transmitted signals; the timing unit is used for recording the reaction and sampling time of the reaction kettle and transmitting the time to the central processing unit, and the central processing unit is used for judging and overall planning the analysis result of the analysis and comparison unit and the time recording information transmitted by the timing unit and making an instruction; the control output unit is used for generating control instructions according to instructions made by the central processing unit and controlling the opening and closing of each valve, the vacuum pump and the inflator pump.
In one alternative: the control system also comprises a setting unit, wherein the setting unit is used for setting a reactant reaction time period to carry out sampling operation, a pressure value in the reaction kettle and the extracted reactant sampling amount.
In one alternative: the bottom of the sampling cylinder body is also provided with a discharge port, and a discharge valve is arranged on the discharge port.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the device utilizes a plurality of sampling units can realize taking a sample and preserving so that subsequent detection in the reation kettle of different periods of time, and the controller can effectively open and close and realize taking a sample and sample volume automatically and can control each valve, need not manual control operation, facilitates the use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle control system of the present invention.
Notations for reference numerals: the device comprises a reaction kettle 1, a sampling cylinder 2, a sampling tube 3, a vacuum pump 4, a diversion conduit 5, a master control valve 6, a diversion valve 7, a first airflow valve 8, a nitrogen storage tank 9, a first air duct 10, an inflator pump 11, a second airflow valve 12, a discharge port 13, a discharge valve 14, a pressure monitoring meter 15, a flowmeter 16, a controller 17, a receiving unit 18, a setting unit 19, an analysis comparison unit 20, a timing unit 21, a central processing unit 22, a control output unit 23 and a second air duct 24.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.
Example 1
Referring to fig. 1 and 2, in an embodiment of the present invention, a vacuum safety sampling device for a chemical reaction kettle comprises a reaction kettle 1, a plurality of sampling units and an inflator pump 11 for filling nitrogen into the reaction kettle 1, wherein the top of the reaction kettle 1 is connected to a sampling tube 3 with a bottom end extending to the bottom thereof, a master control valve 6 is installed on the sampling tube 3, the inflator pump 11 is communicated with the inflator pump 11 through a first air duct 10, an air inlet end of the inflator pump 11 is connected to a nitrogen storage tank 9, the sampling units comprise a sampling cylinder 2 and a vacuum pump 4, the sampling cylinder 2 is communicated with the vacuum pump 4 through a second air duct 24, the sampling cylinder 2 is further connected to the sampling tube 3 through a diversion conduit 5, a first air flow valve 8 is installed on the second air duct 24, a diversion valve 7 is installed on the diversion conduit 5, a flow meter 16 is installed inside the sampling cylinder 2, a pressure monitor 15 is arranged in the reaction kettle 1;
when the sampling device is used, firstly, the first airflow valve 8 in one sampling unit is opened, airflow in the sampling cylinder 2 is pumped away by the vacuum pump 4 to generate a negative pressure state, then the first airflow valve 8 is closed, and the shunt valve 7 and the master control valve 6 are opened, so that pressure difference is generated between the reaction kettle 1 and the sampling cylinder 2, reaction fluid in the reaction kettle 1 is pressed into the sampling cylinder 2 through the sampling pipe 3 and the shunt conduit 5 to realize sampling, when the flow meter 16 detects that the total sampling amount reaches a sampling value, the master control valve 6 and the shunt valve 7 can be closed, and when the pressure monitor 15 detects that the pressure value in the reaction kettle 1 is changed, the second airflow valve 12 is opened, and nitrogen in the nitrogen storage tank 9 is filled into the reaction kettle 1 through the inflator pump 11 to increase the pressure;
the outer wall of the reaction kettle 1 is also provided with a controller 17, the controller 17 contains a control system for controlling the opening and closing of each valve, the vacuum pump 4 and the inflator pump 11, the control system comprises a receiving unit 18, a timing unit 21, an analysis and comparison unit 20, a central processing unit 22 and a control output unit 23, the receiving unit 18 is used for receiving signals transmitted by the pressure monitor 15 and the flowmeter 16, and the analysis and comparison unit 20 is used for analyzing and comparing the transmitted signals; the timing unit 21 is used for recording the reaction time and the sampling time of the reaction kettle and transmitting the time to the central processing unit 22, and the central processing unit 22 is used for judging and coordinating the analysis result of the analysis and comparison unit 20 and the time recording information transmitted by the timing unit 21 and giving instructions; the control output unit 23 is used for generating a control instruction according to an instruction made by the central processing unit 22 and controlling the opening and closing of each valve, the vacuum pump 4 and the inflator pump 11;
after the flow meter 16 in the sampling unit detects that the sampling amount in the sampling cylinder 2 reaches a certain value, a signal can be transmitted to the control system, the control system can control the closing of the master control valve 6 and the shunt valve 7 of the sampling unit, and after the reaction in the reaction kettle 1 is carried out for a certain time, the control system opens the shunt valve 7 of another sampling unit and opens the master control valve 6, so that the reactant after the reaction is carried out for a period of time can be sampled, the operation and control of personnel are not needed, the operation and the control can be automatically carried out, and the operation is convenient and fast;
the control system further comprises a setting unit 19, wherein the setting unit 19 is used for setting a reactant reaction time period to perform sampling operation, a pressure value in the reaction kettle 1 and an extracted reactant sampling amount.
Example 2
The embodiment of the present invention is different from embodiment 1 in that; the bottom of the sampling cylinder 2 is also provided with a discharge port 13, and a discharge valve 14 is mounted on the discharge port 13 so as to take out a sample for detection.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a vacuum safety sampling device for chemical industry reation kettle, includes reation kettle (1), a plurality of sampling unit and is used for inflating pump (11) of nitrogen gas to reation kettle (1) inside, reation kettle (1) top is connected with sampling tube (3) that the bottom extends to its bottom, installs total control valve (6) on sampling tube (3), its characterized in that, be linked together through first air duct (10) between inflator pump (11) and inflator pump (11), the sampling unit includes sample barrel (2) and vacuum pump (4), sample barrel (2) are linked together through second air duct (24) with vacuum pump (4), and sample barrel (2) still connect in sampling tube (3) through reposition of redundant personnel pipe (5), installs first air flow valve (8) on second air duct (24), installs diverter valve (7) on reposition of redundant personnel pipe (5), the sampling device is characterized in that a flow meter (16) is arranged inside the sampling cylinder body (2), a pressure monitoring meter (15) is arranged inside the reaction kettle (1), a controller (17) is further arranged on the outer wall of the reaction kettle (1), and a control system for controlling the opening and closing of each valve, the vacuum pump (4) and the inflator pump (11) is arranged in the controller (17).
2. The vacuum safety sampling device for the chemical reaction kettle according to claim 1, characterized in that a nitrogen storage tank (9) is connected to the air inlet end of the inflator pump (11).
3. The vacuum safety sampling device for the chemical reaction kettle according to claim 2, wherein the control system comprises a receiving unit (18), a timing unit (21), an analysis and comparison unit (20), a central processing unit (22) and a control output unit (23), the receiving unit (18) is used for receiving signals transmitted by the pressure monitoring meter (15) and the flow meter (16), and the analysis and comparison unit (20) is used for analyzing and comparing the transmitted signals; the timing unit (21) is used for recording the reaction and sampling time of the reaction kettle and transmitting the time to the central processing unit (22), and the central processing unit (22) is used for judging and coordinating the analysis result of the analysis comparison unit (20) and the time recording information transmitted by the timing unit (21) and giving instructions; the control output unit (23) is used for generating control instructions according to instructions made by the central processing unit (22) and controlling the opening and closing of each valve, the vacuum pump (4) and the inflator pump (11).
4. The vacuum safety sampling device for the chemical reaction kettle according to claim 3, characterized in that the control system further comprises a setting unit (19), wherein the setting unit (19) is used for setting a reaction time period of the reactant to perform sampling operation, a pressure value in the reaction kettle (1) and a sampling amount of the extracted reactant.
5. The vacuum safety sampling device for the chemical reaction kettle according to any one of claims 1 to 4, characterized in that the bottom of the sampling cylinder body (2) is further provided with a discharge port (13), and the discharge port (13) is provided with a discharge valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870324.5U CN210834323U (en) | 2019-11-01 | 2019-11-01 | Vacuum safety sampling device for chemical reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870324.5U CN210834323U (en) | 2019-11-01 | 2019-11-01 | Vacuum safety sampling device for chemical reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210834323U true CN210834323U (en) | 2020-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921870324.5U Expired - Fee Related CN210834323U (en) | 2019-11-01 | 2019-11-01 | Vacuum safety sampling device for chemical reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210834323U (en) |
-
2019
- 2019-11-01 CN CN201921870324.5U patent/CN210834323U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200623 Termination date: 20201101 |