CN207137908U - A kind of reaction unit of overpressure protection - Google Patents
A kind of reaction unit of overpressure protection Download PDFInfo
- Publication number
- CN207137908U CN207137908U CN201721111468.3U CN201721111468U CN207137908U CN 207137908 U CN207137908 U CN 207137908U CN 201721111468 U CN201721111468 U CN 201721111468U CN 207137908 U CN207137908 U CN 207137908U
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- China
- Prior art keywords
- measuring pump
- valve
- reactor
- material feeding
- primary measuring
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Abstract
The utility model discloses a kind of reaction unit of overpressure protection, its drip irrigation device is, including the first reactor, second reactor, and it is connected to the material feeding pipeline of the first reactor and the second reactor, on material feeding pipeline primary measuring pump is disposed with along material conveying direction, stop valve and flowmeter, the reaction unit also includes return pipeline, the both ends of return pipeline are connected on the input and output end of primary measuring pump, protection valve is installed in return pipeline, the liquid-pressure pick-up for controlling protection valve to open and close is connected with material feeding pipeline between primary measuring pump and stop valve.
Description
Technical field
It the utility model is related to chemical consersion unit design field, the reaction dress of more particularly to a kind of overpressure protection
Put.
Background technology
Styrene-butadiene latex is also known as butadiene-styrene rubber, can be used in combination with natural rubber and various synthetic rubber, is widely used in tire, glue
Band, sebific duct, electric wire, the field such as production of medical apparatus and various rubbers.
Multiple reactors are generally gone through in the butadiene-styrene latex production of traditional chemical enterprise and carry out reaction process, and traditional is anti-
Answer device to include the first reactor and the second reactor, material feeding pipeline is connected between the first reactor and the second reactor, note
Stop valve, measuring pump and electromagnetic flowmeter are installed, by opening stop valve, measuring pump reacts material from first on expects pipe road
Kettle is pumped into the reaction that material is carried out in the second reactor.
Wherein, when electromagnetic flowmeter monitors that the second reactor carries out material and reaches preset value and control stop valve to close
When, the pressure of the material feeding pipeline between measuring pump and stop valve will increase, and the material pressure in this section of material feeding pipeline exceedes
During threshold value, material produces surge in this section of material feeding pipeline, and measuring pump is impacted, influences the service life of measuring pump, because
Certain improvements be present in this.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is the reaction dress for providing a kind of overpressure protection
Put, service life can be improved to a certain extent.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of reaction unit of overpressure protection, including the first reactor, the second reactor and to be connected to first anti-
Answer the material feeding pipeline of kettle and the second reactor, on the material feeding pipeline along material conveying direction be disposed with primary measuring pump,
Stop valve and flowmeter, the reaction unit also include return pipeline, and the both ends of the return pipeline are connected to primary metering
On the input and output end of pump, protection valve is installed, between the primary measuring pump and stop valve in the return pipeline
The liquid-pressure pick-up for controlling protection valve to open and close is connected with material feeding pipeline.
Pass through above-mentioned technical proposal, primary measuring pump are used for material from the first reactor from being pumped into the second reactor
In, flowmeter is used for the amount of being pumped into for detecting material, when the amount of being pumped into of material reaches preset value, controls stop valve and primary metering
Pump is closed, and because the closing of stop valve is promptness, the closing of primary measuring pump has certain property delayed, therefore, necessarily
On the material feeding pipeline that the material of amount will be pumped between primary measuring pump and stop valve, the pressure in material feeding pipeline will increase
Greatly, thus, the pressure condition of this section of material feeding pipeline is detected by liquid-pressure pick-up, is exceeded in the pressure of this section of material feeding pipeline
During threshold value, control protection valve is opened so that material is flowed in return pipeline, reaches the primary measuring pump of removal and cut-out
The purpose of material feeding loine pressure between valve, so as to avoid material from being impacted in this section of material feeding pipeline to primary measuring pump, and
Influence the service life of primary measuring pump.
Preferably, the stop valve and protection valve use magnetic valve.
Pass through above-mentioned technical proposal, magnetic valve have the characteristics of being quick on the draw, be quick.
Preferably, the flowmeter uses electromagnetic flowmeter.
Pass through above-mentioned technical proposal, electromagnetic flowmeter accuracy of detection is high, improves from the first reactor and is injected into the second reaction
The purpose of material precision in kettle.
Preferably, one end of the material feeding pipeline is connected to the bottom of the first reactor and the other end is connected to the second reaction
The top of kettle.
Preferably, standby measuring pump is connected in parallel on the primary measuring pump, on the input of the primary measuring pump
The first valve is connected with, the second valve is connected with the input of the standby measuring pump.
Pass through above-mentioned technical proposal, electromagnetic flowmeter is used for the traffic conditions for monitoring material in material feeding pipeline, in electromagnetic current
When the flow value shown on gauge is not inconsistent with setting value, that is, representing primary measuring pump and may breaking down causes in material feeding pipeline
Mass flow is inaccurate, and by controlling the first valve and primary measuring pump to close, the second valve and standby measuring pump are opened, standby
Measuring pump uses instead of primary measuring pump, when ensure that device fails, can still ensure the uniform addition of material.
Preferably, first check-valve, the output of the standby measuring pump are connected with the output end of the primary measuring pump
Second check-valve is connected with end.
Pass through above-mentioned technical proposal, broken down in primary measuring pump, when standby measuring pump replaces primary metering pump operation,
Or standby measuring pump breaks down, primary measuring pump replaces standby measuring pump in use, passing through first check-valve and the second non-return
The setting of valve, can be when entirety be without operation, and staff can repair to primary measuring pump or standby measuring pump.
In summary, the utility model having the beneficial effect that in contrast to prior art：
The pressure condition of this section of material feeding pipeline is detected by liquid-pressure pick-up, is exceeded in the pressure of this section of material feeding pipeline
During threshold value, control protection valve is opened so that material is flowed in return pipeline, reaches the primary measuring pump of removal and cut-out
The purpose of material feeding loine pressure between valve, so as to avoid material from being impacted in this section of material feeding pipeline to primary measuring pump, and
Influence the service life of primary measuring pump.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment.
Reference：1st, the first reactor；2nd, the second reactor；3rd, material feeding pipeline；4th, primary measuring pump；5th, stop valve；
6th, flowmeter；7th, return pipeline；8th, valve is protected；9th, liquid-pressure pick-up；10th, standby measuring pump；11st, the first valve；12nd,
Two valves；13rd, first check-valve；14th, second check-valve.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of reaction unit of overpressure protection, including the first reactor 1, the second reactor 2 and difference
The material feeding pipeline 3 of the first reactor 1 and the second reactor 2 is connected to, one end of material feeding pipeline 3 is connected to the first reactor 1
Bottom and the other end are connected to the top of the second reactor 2.
On material feeding pipeline 3 primary measuring pump 4, stop valve 5 and flowmeter 6, this reality are disposed with along material conveying direction
Apply in example, flowmeter 6 uses electromagnetic flowmeter, and stop valve 5 uses magnetic valve.It should be noted that primary measuring pump 4, cut-out
Controller is electrically connected with valve 5 and flowmeter 6（Not shown in figure）, traffic conditions of the flowmeter 6 for monitoring material feeding pipeline 3,
Controller calculates the volume capacity that material in the second reactor 2 is pumped into from the first reactor 1, is reached in the volume capacity of material
During to preset value, controller control stop valve 5 turns off, and primary measuring pump 4 is out of service, reaches the second reactor 2 and carries out material
The purpose of reaction.
To avoid producing surge in material feeding pipeline 3 of the material between primary measuring pump 4 and stop valve 5, measuring pump is made
Into impact.Present applicant proposes following technical scheme, specifically, reaction unit also includes return pipeline 7, and the two of return pipeline 7
End is connected on the input and output end of primary measuring pump 4, and protection valve 8, primary measuring pump are provided with return pipeline 7
Liquid-pressure pick-up 9 is connected with material feeding pipeline 3 between 4 and stop valve 5.What deserves to be explained is liquid-pressure pick-up
9th, protection valve 8 is electrically connected in controller, and liquid-pressure pick-up 9 is used to detect to note between primary measuring pump 4 and stop valve 5
Pressure condition in expects pipe road 3, when the pressure in this section of material feeding pipeline 3 is excessive, liquid-pressure pick-up 9 passes through controller control
The keying of system protection valve 8.In the present embodiment, protection valve 8 uses magnetic valve.
Standby measuring pump 10, i.e., the input and output end point of standby measuring pump 10 are connected in parallel on primary measuring pump 4
It is not connected to by pipeline on the input and output end of primary measuring pump 4.It should be noted that the input of primary measuring pump 4
The first valve 11 is connected with end, the second valve 12 is connected with the input of standby measuring pump 10.The output of primary measuring pump 4
First check-valve 13 is connected with end, second check-valve 14 is connected with the output end of standby measuring pump 10.The He of first valve 11
Magnetic valve is respectively adopted in second valve 12, and standby measuring pump 10, the first valve 11 and the second valve 12 are electrically connected to controller.
The course of work：
First, controller controls the first valve 11 to open, and the second valve 12 and standby measuring pump 10 are closed, and pass through primary meter
Amount pump 4 is used for material from the first reactor 1 from being pumped into the second reactor 2；
Secondly, flowmeter 6 is used for the amount of being pumped into for detecting material, when the amount of being pumped into of material reaches preset value, control cut-out
Valve 5 and primary measuring pump 4 are closed, and because the closing of stop valve 5 is promptness, the closing of primary measuring pump 4 has necessarily
The property delayed, therefore, on the material feeding pipeline 3 that a certain amount of material will be pumped between primary measuring pump 4 and stop valve 5, material feeding
Pressure in pipeline 3 will increase, and thus, the pressure condition of this section of material feeding pipeline 3 be detected by liquid-pressure pick-up 9,
When the pressure of this section of material feeding pipeline 3 exceedes threshold value, control protection valve 8 is opened so that material is flowed in return pipeline 7
It is dynamic, reach the purpose of the pressure of material feeding pipeline 3 between the primary measuring pump 4 of removal and stop valve 5, so as to avoid material in this section of material feeding
Primary measuring pump 4 is impacted in pipeline 3, and influences the service life of primary measuring pump 4.
Wherein, when the flow value shown on electromagnetic flowmeter 6 is not inconsistent with setting value,（Representing primary measuring pump 4 may
Breaking down causes the mass flow in material feeding pipeline 3 inaccurate）, by controlling the first valve 11 and primary measuring pump 4 to close,
Second valve 12 and standby measuring pump 10 are opened, and standby measuring pump 10 uses instead of primary measuring pump 4, ensure that event occurs for equipment
During barrier, it can still ensure the uniform addition of material.
Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model
Enclose, the scope of protection of the utility model is determined by appended claim.
Claims (6)
1. a kind of reaction unit of overpressure protection, including the first reactor (1), the second reactor (2) and it is connected to
The material feeding pipeline (3) of one reactor (1) and the second reactor (2), set successively along material conveying direction on the material feeding pipeline (3)
Primary measuring pump (4), stop valve (5) and flowmeter (6) are equipped with, it is characterized in that, the reaction unit also includes return pipeline (7),
The both ends of the return pipeline (7) are connected on the input and output end of primary measuring pump (4), the return pipeline
(7) protection valve (8) is installed on, use is connected with the material feeding pipeline (3) between the primary measuring pump (4) and stop valve (5)
In the liquid-pressure pick-up (9) that control protection valve (8) opens and closes.
2. a kind of reaction unit of overpressure protection according to claim 1, it is characterized in that, the stop valve (5) and protection
Valve (8) uses magnetic valve.
3. a kind of reaction unit of overpressure protection according to claim 1, it is characterized in that, the flowmeter (6) is using electricity
Magnetic flowmeter.
4. a kind of reaction unit of overpressure protection according to claim 1, it is characterized in that, the one of the material feeding pipeline (3)
End is connected to the bottom of the first reactor (1) and the other end is connected to the top of the second reactor (2).
5. a kind of reaction unit of overpressure protection according to claim 1, it is characterized in that, on the primary measuring pump (4)
Standby measuring pump (10) is connected in parallel to, the first valve (11) is connected with the input of the primary measuring pump (4), it is described standby
With being connected with the second valve (12) on the input of measuring pump (10).
6. a kind of reaction unit of overpressure protection according to claim 5, it is characterized in that, the primary measuring pump (4)
First check-valve (13) is connected with output end, second check-valve is connected with the output end of the standby measuring pump (10)
(14)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111468.3U CN207137908U (en) | 2017-08-31 | 2017-08-31 | A kind of reaction unit of overpressure protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111468.3U CN207137908U (en) | 2017-08-31 | 2017-08-31 | A kind of reaction unit of overpressure protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207137908U true CN207137908U (en) | 2018-03-27 |
Family
ID=61676802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721111468.3U Expired - Fee Related CN207137908U (en) | 2017-08-31 | 2017-08-31 | A kind of reaction unit of overpressure protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207137908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828269A (en) * | 2019-11-22 | 2021-05-25 | 昆山市天和焊锡制造有限公司 | Molten material feeding device |
-
2017
- 2017-08-31 CN CN201721111468.3U patent/CN207137908U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828269A (en) * | 2019-11-22 | 2021-05-25 | 昆山市天和焊锡制造有限公司 | Molten material feeding device |
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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 |
Granted publication date: 20180327 Termination date: 20190831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |