CN212929554U - Emergency disposal system for pressure container - Google Patents
Emergency disposal system for pressure container Download PDFInfo
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- CN212929554U CN212929554U CN202020996478.5U CN202020996478U CN212929554U CN 212929554 U CN212929554 U CN 212929554U CN 202020996478 U CN202020996478 U CN 202020996478U CN 212929554 U CN212929554 U CN 212929554U
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Abstract
An emergency disposal system for a pressure container belongs to the technical field of sewage treatment. The pressure container emergency treatment system comprises an air compressor, a pressure container, an air dryer, an air filter, a spraying device and a controller. The controller sends out instructions to control the corresponding electromagnetic valve to act and give an alarm when the medium in the pressure container is in overpressure caused by over-low pressure, over-high temperature or over-high temperature according to signals provided by the pressure sensor and the temperature sensor, so that accidents caused by gas leakage or overpressure are avoided. The system is provided with multi-level pressure reduction measures of the safety valve, the emptying valve and the spraying device, when the safety valve fails, the controller can send an instruction to control the emptying valve or the spraying device to work so as to ensure the safe operation of the pressure container, avoid the danger of accidents such as explosion, tearing and the like caused by overpressure, overtemperature or overtemperature during the operation of the pressure container, and ensure the safety of equipment and operators.
Description
Technical Field
The utility model relates to an emergent processing system of pressure vessel belongs to sewage treatment technical field.
Background
In a sewage treatment system, a pressure container is used as an air storage tank for deeply treating all pneumatic valves, is an important process device, is also a pressure-bearing device, is usually very serious in destructiveness in case of accidents, particularly, the explosion of the pressure container can cause danger to equipment and personnel, and the bearing capacity of a pressed element is reduced to the extent that the pressed element cannot bear normal pressure due to overpressure and overtemperature in operation or corrosion and abrasion, so that accidents such as explosion, tearing and the like are caused. And emergency situations occur, and the influence is serious because the emergency situations cannot be processed in time.
Disclosure of Invention
In order to overcome the problem that exists among the prior art, the utility model provides an emergent processing system of pressure vessel, this system reply pressure vessel arouses the pressure vessel accident because of superpressure and overtemperature, obtains effective control, avoids causing personnel's accident and building destruction.
The technical scheme of the utility model is that: a pressure container emergency treatment system comprises an air compressor (1) and a pressure container, wherein the air compressor is connected to the pressure container through an air supply valve, an air pipeline and an air inlet valve, an exhaust valve is arranged at the bottom of the pressure container, a safety valve is arranged at the top of the pressure container, a pressure gauge, a pressure sensor and a temperature sensor are further arranged on the pressure container, and the pressure sensor and the temperature sensor are electrically connected to a controller; the air pipeline is also connected with a filtering and drying device in parallel, the air inlet end of the filtering and drying device is connected with the air inlet end of the stop valve on the air pipeline through a first air filter, an air inlet branch pipe and a filtering and air inlet valve, and the air outlet end of the filtering and drying device is connected with the air outlet end of the stop valve on the air pipeline through a second air filter, a second air branch pipe and a filtering and air inlet valve; the system is also provided with a spraying device, the spraying device adopts a tap water tank to be connected with a spraying head through a tap water pipeline, a water supply valve is arranged on the tap water pipeline, and the spraying head is arranged above the pressure container; the air inlet valve, the emptying valve and the water supply valve are all electromagnetic control valves electrically connected with the controller, and the air compressor relay is also electrically connected with the controller.
The temperature threshold of the temperature sensor is 20 ℃.
The pressure threshold of the pressure sensor is 0.75 MPa.
The controller adopts an S7-200 PLC controller.
The utility model has the advantages that: the pressure container emergency treatment system comprises an air compressor, a pressure container, an air dryer, an air filter, a spraying device and a controller. The controller sends out instructions to control the corresponding electromagnetic valve to act and give an alarm when the medium in the pressure container is in overpressure caused by over-low pressure, over-high temperature or over-high temperature according to signals provided by the pressure sensor and the temperature sensor, so that accidents caused by gas leakage or overpressure are avoided. The system is provided with multi-level pressure reduction measures of the safety valve, the emptying valve and the spraying device, when the safety valve fails, the controller can send an instruction to control the emptying valve or the spraying device to work so as to ensure the safe operation of the pressure container, avoid the danger of accidents such as explosion, tearing and the like caused by overpressure, overtemperature or overtemperature during the operation of the pressure container, and ensure the safety of equipment and operators.
Drawings
FIG. 1 is a schematic diagram of a pressure vessel emergency disposal system.
FIG. 2 is a schematic diagram of an SP-200PLC controller.
In the figure: 1. the air dryer comprises an air compressor, 2, a pressure container, 3, an air dryer, 4, a first air filter, 4a, an air inlet branch pipe, 5, a pressure gauge, 6, a pressure sensor, 7, a controller, 8, a temperature sensor, 9, a spray header, 10, a second air filter, 10a, an air outlet branch pipe, 11, an air pipeline, 12, a tap water tank, 13, a tap water pipeline, T1, an air supply valve, T2, a filtering air inlet valve, T3, an air inlet valve, T4, a filtering air outlet valve, T5, an emptying valve, T6, a water supply valve, T7, a safety valve, T8 and a stop valve.
Detailed Description
The present invention is described below with reference to the accompanying drawings and the embodiments:
FIG. 1 shows a schematic diagram of a pressure vessel emergency disposal system. The system comprises an air compressor 1 and a pressure container 2, wherein the air compressor 1 is connected to the pressure container 2 through an air supply valve T1, an air pipeline 11 and an air inlet valve T3, the bottom of the pressure container 2 is provided with an exhaust valve T5, the top of the pressure container 2 is provided with a safety valve T7, the pressure container 2 is provided with a pressure gauge 5, a pressure sensor 6 and a temperature sensor 8, and the pressure sensor 6 and the temperature sensor 8 are electrically connected to a controller 7. The air pipeline 11 is also connected in parallel with a filtering and drying device, the air inlet end of the filtering and drying device is connected with the air inlet end of the stop valve T8 on the air pipeline 11 through the first air filter 4, the air inlet branch pipe 4a and the filtering and air inlet valve T2, and the air outlet end of the filtering and drying device is connected with the air outlet end of the stop valve T8 on the air pipeline 11 through the second air filter 10, the two air branch pipes 10a and the filtering and air inlet valve T2. The system is also provided with a shower arrangement which uses a tap water tank 12 connected via a feed valve T6 to a tap water line 13, the tap water line 13 being connected to a shower head 9 arranged above the pressure vessel 2. The intake valve T3, the drain valve T5, and the water supply valve T6 are all solenoid-operated valves, which are electrically connected to the controller 7. The pressure threshold of the pressure sensor 6 is 0.75MPa, the temperature threshold of the temperature sensor 8 is 20 ℃, and the trigger pressure of the safety valve T7 is 0.70 MPa.
FIG. 2 shows a schematic diagram of an SP-200PLC controller. The controller adopts a PLC controller which is electrically connected with the air compressor relay, the air inlet valve T3, the emptying valve T5, the water supply valve T6, the pressure sensor 6 and the temperature sensor 8 and can control the actions of the air inlet valve T3, the emptying valve T5 and the water supply valve T6.
The medium of the pressure vessel 2 is air, the design pressure is 0.84Ma, the highest pressure is 0.8Ma, the operation pressure is 0.3-0.7Ma, the temperature of the medium in the pressure vessel is 20 ℃, and the pressure vessel 2 works normally.
When the pressure in the pressure container 2 is lower than 0.3Ma when the pressure in the pressure container 2 leaks, the pressure signal of the pressure sensor 6 is transmitted to the controller 7, the controller 7 prompts a buzzer alarm, and sends instructions to control the closing of the air inlet valve T3 and the opening of the exhaust valve T5, and an attendant is required to go to the site to inquire the reason.
When the pressure in the pressure container 2 is higher than 0.70Ma, the pressure signal of the pressure sensor 6 is transmitted to the controller 7, and the safety valve T7 automatically opens for pressure relief. If the safety valve T7 has a fault and can not be opened for pressure relief, when the pressure is higher than 0.75Ma, the pressure signal of the pressure sensor 6 is transmitted to the controller 7, the controller 7 prompts a buzzer alarm, and sends out instructions to control the closing of the air inlet valve T3 and the opening of the emptying valve T5, so that the pressure container 2 is relieved. If the pressure in the pressure vessel 2 is restored to the operating pressure of 0.3-0.7Ma, the controller 7 commands the intake valve T3 to open and the exhaust valve T5 to close.
When the medium in the pressure container 2 exceeds 20 ℃, the temperature signal of the temperature sensor 8 is transmitted to the controller 7, the controller 7 prompts a buzzer to alarm, and sends an instruction to control the opening of the water supply valve T6, and the spray head 9 sprays water to the pressure container 2 to reduce the temperature. If the pressure container 2 is over-pressurized due to over-temperature, the controller 7 prompts a buzzer to alarm and simultaneously sends out an instruction for controlling water spraying and pressure relief.
When the spraying device and the emptying valve T5 are failed simultaneously and overpressure failure is difficult to be eliminated within set time, the controller 7 sends a command to control the air compressor relay to cut off the power supply of the air compressor 1.
The PLC controller is a programmable logic controller of a digital operation electronic system and is used for controlling the production process of machinery. The simplest Siemens S7 series PLC commonly used in the market at present has small volume, high speed and standardization, has network communication capacity, stronger function and higher reliability, an S7-200 PLC controller (the model is 6ES7211-0BA23-0XB0, an AC/DC/relay, 6-point input and 4-point output) is a micro PLC, and is suitable for automatic detection, monitoring and control and the like in various industries and occasions, and the powerful function of the S7-200 PLC enables the PLC to realize complex control functions no matter a single machine operates or a network is connected.
Claims (4)
1. The utility model provides a pressure vessel emergency disposal system, it includes air compressor machine (1) and pressure vessel (2), its characterized in that: the air compressor (1) is connected to the pressure container (2) through an air supply valve (T1), an air pipeline (11) and an air inlet valve (T3), an exhaust valve (T5) is arranged at the bottom of the pressure container (2), a safety valve (T7) is arranged at the top of the pressure container (2), a pressure gauge (5), a pressure sensor (6) and a temperature sensor (8) are further arranged on the pressure container (2), and the pressure sensor (6) and the temperature sensor (8) are electrically connected to the controller (7); the air pipeline (11) is also connected with a filtering and drying device in parallel, the air inlet end of the filtering and drying device is connected with the air inlet end of a stop valve (T8) on the air pipeline (11) through a first air filter (4), an air inlet branch pipe (4 a) and a filtering and air inlet valve (T2), and the air outlet end of the filtering and drying device is connected with the air outlet end of the stop valve (T8) on the air pipeline (11) through a second air filter (10), a second air branch pipe (10 a) and a filtering and air inlet valve (T2); the system is also provided with a spraying device, the spraying device adopts a tap water tank (12) to be connected with a spraying head (9) through a tap water pipeline (13), a water supply valve (T6) is arranged on the tap water pipeline (13), and the spraying head (9) is arranged above the pressure container (2); the air inlet valve (T3), the emptying valve (T5) and the water supply valve (T6) are all electromagnetic control valves electrically connected with the controller (7), and the air compressor relay is also electrically connected with the controller (7).
2. A pressure vessel emergency disposal system as defined in claim 1, wherein: the temperature threshold of the temperature sensor (8) is 20 ℃.
3. A pressure vessel emergency disposal system as defined in claim 1, wherein: the pressure threshold value of the pressure sensor (6) is 0.75 MPa.
4. A pressure vessel emergency disposal system as defined in claim 1, wherein: the controller (7) adopts an S7-200 PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020996478.5U CN212929554U (en) | 2020-06-04 | 2020-06-04 | Emergency disposal system for pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020996478.5U CN212929554U (en) | 2020-06-04 | 2020-06-04 | Emergency disposal system for pressure container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212929554U true CN212929554U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020996478.5U Active CN212929554U (en) | 2020-06-04 | 2020-06-04 | Emergency disposal system for pressure container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212929554U (en) |
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2020
- 2020-06-04 CN CN202020996478.5U patent/CN212929554U/en active Active
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