CN206819146U - Overtemperature and overpressure protection system of solvent recovery equipment - Google Patents
Overtemperature and overpressure protection system of solvent recovery equipment Download PDFInfo
- Publication number
- CN206819146U CN206819146U CN201720786133.5U CN201720786133U CN206819146U CN 206819146 U CN206819146 U CN 206819146U CN 201720786133 U CN201720786133 U CN 201720786133U CN 206819146 U CN206819146 U CN 206819146U
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- China
- Prior art keywords
- solvent
- temperature
- temperature sensor
- pressure
- staving
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- 239000002904 solvent Substances 0.000 title claims abstract description 66
- 238000011084 recovery Methods 0.000 title claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000006837 decompression Effects 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses an overtemperature and overpressure protection system of solvent recovery equipment, which comprises a PLC controller, a first temperature sensor, a second temperature sensor, a pressure sensor, an electric pressure relief valve and an alarm device, wherein the first temperature sensor is arranged in a barrel body of a solvent heating barrel of the solvent recovery equipment and is used for detecting the steam temperature in the barrel body; the second temperature sensor is arranged in a vacuum decompression pump for storing the recovered clean solvent and is used for detecting the temperature of the solvent in the vacuum decompression pump; the pressure sensor is arranged in the barrel body of the solvent heating barrel and used for detecting the steam pressure in the barrel body; the electric pressure relief valve is arranged at the upper part of the barrel body. The system can realize the high-temperature alarm function of the heating barrel, the over-high temperature alarm function of the outflow solvent and the overpressure protection function, and ensure the safe operation of the solvent recovery equipment.
Description
Technical field
It the utility model is related to solvent recovery field, the over-temp and over-pressure protection system of more particularly to a kind of solvent reclaimer
System.
Background technology
In process of production, it is necessary to use solvent cleaning product.It is continuous with international crude petroleum in the industry using chemical industry
Go up, the cost of solvent turning over several times during the decade, if can reduce the quantity of solvent that we use now or solvent can circulate
Use, certainly will can reduce a part of cost of production.The existing recycling for solvent is usually to use the heating way of distillation,
Particularly significant to the temperature in heating process and Stress control, such as continuous high temperature heating, internal pressure is excessive, and potential safety hazard is very big.
Utility model content
Main purpose of the present utility model is to provide a kind of over-temp and over-pressure protection system of solvent reclaimer, improves safety
Coefficient, ensure equipment safety operation.
The utility model proposes a kind of over-temp and over-pressure of solvent reclaimer to protect system, including PLC, the first temperature
Spend sensor, second temperature sensor, pressure sensor, electronic relief valve and warning device, the first temperature sensor peace
Solvent mounted in solvent reclaimer is heated in the staving of bucket, for detecting the vapor (steam) temperature in staving；The second temperature passes
Sensor is arranged in the vacuum decompression pump for being used for storing the clean solvent after recovered processing, for detecting in vacuum decompression pump
Solvent temperature；The pressure sensor is arranged in the staving of solvent heating bucket, for detecting the steam pressure in staving；
The electronic relief valve is arranged on the staving top, first temperature sensor, the second temperature sensor and pressure
The signal output part of sensor is electrically connected with the signal input part of the PLC respectively, the signal of the PLC
The control circuit of heater, the control circuit of the warning device and solvent of the output end respectively with solvent heating bucket return
The master switch control circuit of receiving unit is electrically connected with.
Preferably, the warning device is acoustic-optic alarm, including loudspeaker and alarm lamp.
The beneficial effects of the utility model are：
Over-temp and over-pressure protection system of the present utility model includes PLC, the first temperature sensor, second temperature sensing
Device, pressure sensor, electronic relief valve and warning device, the solvent that the first temperature sensor is arranged on solvent reclaimer heat
In the staving of bucket, for detecting the vapor (steam) temperature in staving；Second temperature sensor is arranged on for after storing recovered processing
Clean solvent vacuum decompression pump in, for detecting the solvent temperature in vacuum decompression pump；Pressure sensor is arranged on solvent
In the staving for heating bucket, for detecting the steam pressure in staving；Electronic relief valve is arranged on staving top, the first TEMP
The signal output part of device, second temperature sensor and pressure sensor is electrically connected with the signal input part of PLC respectively,
The signal output part of PLC heats control circuit, the control circuit of warning device of the heater of bucket with solvent respectively
And the master switch control circuit of solvent reclaimer is electrically connected with.
The air pressure in bucket is heated by pressure sensor to solvent to be detected in real time, the pressure in solvent heating bucket is high
When setting value, PLC can control the heater stop heating of solvent heating bucket, and control warning device to be warned
Report, to prompt staff；Control electronic relief valve to carry out safety relief simultaneously, drop to setting value in pressure release to pressure, it
PLC control device automatic shutdown afterwards, improve safety coefficient.
The temperature in bucket is heated by the first temperature sensor to solvent to be detected in real time, the temperature in solvent heating bucket
When degree is higher than setting value, PLC can control the heater stop heating of solvent heating bucket, and control warning device to carry out
Alarm, to prompt staff.Condenser normal work to vapor (steam) temperature drops to setting value simultaneously, PLC control afterwards
Control equipment automatic shutdown, complete machine is cut off after avoiding high temperature alarm, causes the too high potential safety hazard brought of spatial concentration.
The temperature in vacuum decompression pump is detected in real time by second temperature sensor, is detecting vacuum decompression pump
When interior temperature is higher than setting value, illustrate that cooling system breaks down, PLC can control the heater of solvent heating bucket
Stop heating, and control warning device to carry out alarm, to prompt staff.
Brief description of the drawings
Fig. 1 is the circuit block diagram that over-temp and over-pressure of the present utility model protects system.
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that specific embodiment described herein is not used to limit this only to explain the utility model
Utility model.
Reference picture 1, propose an embodiment of the over-temp and over-pressure protection system of solvent reclaimer of the present utility model：
A kind of over-temp and over-pressure protection system of solvent reclaimer, including PLC, the first temperature sensor, second
Temperature sensor, pressure sensor, electronic relief valve and warning device.First temperature sensor is arranged on solvent reclaimer
In the staving of solvent heating bucket, for detecting the vapor (steam) temperature in staving.Second temperature sensor is arranged on to be used to store and passed through back
In the vacuum decompression pump of clean solvent after receipts processing, for detecting the solvent temperature in vacuum decompression pump.Pressure sensor is pacified
In the staving of solvent heating bucket, for detecting the steam pressure in staving.Electronic relief valve is arranged on staving top, and first
The signal output part of temperature sensor, the second temperature sensor and pressure sensor signal input part with PLC respectively
It is electrically connected with, the signal output part of PLC control circuit with the heater of solvent heating bucket, warning device respectively
Control circuit and the master switch control circuit of solvent reclaimer are electrically connected with.Warning device is acoustic-optic alarm, including loudspeaker
And alarm lamp.
The air pressure in bucket is heated by pressure sensor to solvent to be detected in real time, the pressure in solvent heating bucket is high
When setting value, PLC can control the heater stop heating of solvent heating bucket, and control warning device to be warned
Report, to prompt staff；Control electronic relief valve to carry out safety relief simultaneously, drop to setting value in pressure release to pressure, it
PLC control device automatic shutdown afterwards, improve safety coefficient.
The temperature in bucket is heated by the first temperature sensor to solvent to be detected in real time, the temperature in solvent heating bucket
When degree is higher than setting value, PLC can control the heater stop heating of solvent heating bucket, and control warning device to carry out
Alarm, to prompt staff.Condenser normal work to vapor (steam) temperature drops to setting value simultaneously, PLC control afterwards
Control equipment automatic shutdown, complete machine is cut off after avoiding high temperature alarm, causes the too high potential safety hazard brought of spatial concentration.
The temperature in vacuum decompression pump is detected in real time by second temperature sensor, is detecting vacuum decompression pump
When interior temperature is higher than setting value, illustrate that cooling system breaks down, PLC can control the heater of solvent heating bucket
Stop heating, and control warning device to carry out alarm, to prompt staff.
The system has high temperature alarm function, the too high warning function of outflow solvent temperature and overpressure protection function, ensures molten
Agent reclaimer safe operation.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other phases
The technical field of pass, similarly it is included in scope of patent protection of the present utility model.
Claims (2)
1. the over-temp and over-pressure protection system of a kind of solvent reclaimer, it is characterised in that passed including PLC, the first temperature
Sensor, second temperature sensor, pressure sensor, electronic relief valve and warning device, first temperature sensor are arranged on
In the staving of the solvent heating bucket of solvent reclaimer, for detecting the vapor (steam) temperature in staving；The second temperature sensor
In the vacuum decompression pump for storing the clean solvent after recovered processing, for detecting the solvent in vacuum decompression pump
Temperature；The pressure sensor is arranged in the staving of solvent heating bucket, for detecting the steam pressure in staving；It is described
Electronic relief valve is arranged on the staving top, first temperature sensor, the second temperature sensor and pressure sensing
The signal output part of device is electrically connected with the signal input part of the PLC respectively, the signal output of the PLC
The control circuit of heater, the control circuit of the warning device and solvent recovery of the end respectively with solvent heating bucket are set
Standby master switch control circuit is electrically connected with.
2. the over-temp and over-pressure protection system of solvent reclaimer according to claim 1, it is characterised in that the alarm dress
It is set to acoustic-optic alarm, including loudspeaker and alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720786133.5U CN206819146U (en) | 2017-07-02 | 2017-07-02 | Overtemperature and overpressure protection system of solvent recovery equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720786133.5U CN206819146U (en) | 2017-07-02 | 2017-07-02 | Overtemperature and overpressure protection system of solvent recovery equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206819146U true CN206819146U (en) | 2017-12-29 |
Family
ID=60761793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720786133.5U Active CN206819146U (en) | 2017-07-02 | 2017-07-02 | Overtemperature and overpressure protection system of solvent recovery equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206819146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553240A (en) * | 2018-06-01 | 2019-12-10 | 新疆北方建设集团有限公司 | Rankine cycle device and method thereof |
-
2017
- 2017-07-02 CN CN201720786133.5U patent/CN206819146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553240A (en) * | 2018-06-01 | 2019-12-10 | 新疆北方建设集团有限公司 | Rankine cycle device and method thereof |
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