Automatic start-stop control system of compressor

Abstract

The utility model discloses an automatic start-stop control system for a compressor, which comprises the compressor, and is characterized in that a process gas outlet of the compressor is connected with a gas inlet end of a pressure storage tank through a pipeline, the compressor is correspondingly provided with an automatic control valve, the pressure storage tank is provided with a pressure transmitter, the pressure transmitter is connected with a central control system, and the central control system is connected with the central control system. The pressure transmitter transmits a pressure signal to the central control system, the automatic control valve is connected with the central control system, the automatic control valve is controlled by the central control system to start and stop, and during working, when the pressure of the pressure storage tank is lower than a set numerical value, the compressor is automatically started; and when the pressure of the pressure storage tank is higher than a set value, the compressor automatically stops. According to the utility model, corresponding automatic control valves and instruments are additionally arranged in the unit, and the pressure of the storage tank is monitored, so that the compressor can be started and stopped at any time.

Description

Technical Field

[0001] The utility model relates to an improved invention for a compressor, in particular to an improved invention for an automatic start-stop control system for a compressor. Background Art

[0002] The large pressure storage tanks used in petrochemical sites have ever-changing demands for gas sources in the process. When the demand is too large, the pressure of the tanks will fluctuate greatly. When the tank pressure drops to a certain value, it will not be able to fully meet the needs of the process, which may cause the subsequent equipment to be forced to shut down and stop production, causing great property losses to the owner. At this time, it is necessary to develop a control system that can control the automatic start and stop of the compressor according to the pressure conditions of the tank, and to replenish and pressurize the tank in time to ensure the stable operation of the subsequent process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an automatic start-stop control system for a compressor.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: this type of compressor automatic start and stop control system includes a compressor, which is characterized in that: the process gas outlet of the compressor is connected to the air inlet end of the pressure storage tank via a pipeline, and the corresponding compressor is equipped with an automatic control valve, and the pressure storage tank is equipped with a pressure transmitter, which is connected to the central control system, and the pressure transmitter transmits the pressure signal to the central control system. The automatic control valve is connected to the central control system, and the automatic control valve is controlled to start and stop by the central control system. During operation, when the pressure of the pressure storage tank is lower than the set value, the compressor starts automatically; when the pressure of the pressure storage tank is higher than the set value, the compressor stops automatically.

[0005] The process gas outlet of the compressor is equipped with a check valve.

[0006] The pressure storage tank is also equipped with a pressure alarm.

[0007] The automatic control valve is a solenoid valve that controls the start and stop of the compressor.

[0008] When the pressure of the pressure storage tank is lower than 3.5MPa, the compressor automatically starts; when the pressure of the pressure storage tank is higher than 5.31MPa, the compressor automatically stops.

[0009] The system is equipped with a manual emergency stop button.

[0010] The beneficial effect of this utility model is the improved automatic start-stop control system for the compressor. By adding corresponding automatic control valves and instruments to the unit and monitoring the pressure of the storage tank, the compressor can be started and stopped at any time. When the storage tank pressure falls below the set value, the compressor automatically starts; when the storage tank pressure exceeds the set value, the compressor automatically stops. This control system is highly applicable to process compressors, realizing the "intelligentization and digitalization" of the unit while significantly reducing the workload of compressor operators and increasing safety for variable process systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0012] Figure 1 This is a system block diagram of the utility model. DETAILED DESCRIPTION

[0013] The accompanying drawings show the structure of the present invention, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1 The compressor automatic start and stop control system includes a compressor 1. The process gas outlet of the compressor 1 is connected to the air inlet end of the pressure storage tank 2 via a pipeline. The corresponding compressor 1 is equipped with an automatic control valve 3. The pressure storage tank 2 is equipped with a pressure transmitter 4. The corresponding pressure storage tank 2 is provided with multiple key measuring points. The pressure transmitter 4 is connected to the central control system 5. The pressure transmitter 4 transmits a pressure signal to the central control system 5, which can monitor the operating status of the unit in real time, so that the user has a better understanding and grasp of the capacity and status of the unit. The automatic control valve 3 is connected to the central control system 5, and the automatic control valve 3 is controlled to start and stop by the central control system 5. During operation, when the pressure of the pressure storage tank 2 is lower than the set value, the compressor 1 automatically starts; when the pressure of the pressure storage tank 2 is higher than the set value, the compressor 1 automatically stops.

[0014] The working principle of the present invention is that the pressure storage tank 2 supplies gas to the process site 6, the pressure transmitter 4 monitors the pressure situation in the pressure storage tank 2 in real time, and transmits the pressure signal to the central control system 5, which is displayed and analyzed in the central control system 5. When the pressure of the pressure storage tank 2 is lower than the set value, the central control system 5 controls the automatic valve to open, the corresponding compressor 1 automatically starts, and supplies gas to the pressure storage tank 2; when the pressure of the pressure storage tank 2 is higher than the set value, the central control system 5 controls the automatic valve to close, the corresponding compressor 1 automatically stops, and stops supplying gas to the pressure storage tank 2.

[0015] As a further improved specific implementation method, the process gas outlet of the compressor 1 is equipped with a check valve to prevent the process gas from flowing back.

[0016] As a further improved specific implementation method, the pressure storage tank 2 is further equipped with a pressure alarm, which will give an alarm when the pressure in the pressure storage tank 2 is lower than or higher than a set value.

[0017] As a further improved specific implementation method, the automatic control valve 3 is a solenoid valve that controls the start and stop of the compressor 1.

[0018] As a further improved specific implementation method, when the pressure of the pressure storage tank 2 is lower than 3.5 MPa, the compressor 1 automatically starts; when the pressure of the pressure storage tank 2 is higher than 5.31 MPa, the compressor 1 automatically stops.

[0019] As a further improved specific implementation method, the system is equipped with a manual emergency stop button for emergency use to ensure production safety.

[0020] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A compressor automatic start-stop control system, comprising a compressor, characterized in that: The process gas outlet of the compressor is connected to the air inlet end of the pressure storage tank through a pipeline. The corresponding compressor is equipped with an automatic control valve. The pressure storage tank is equipped with a pressure transmitter. The pressure transmitter is connected to the central control system. The pressure transmitter transmits the pressure signal to the central control system. The automatic control valve is connected to the central control system. The automatic control valve is controlled to start and stop by the central control system. During operation, when the pressure of the pressure storage tank is lower than the set value, the compressor starts automatically; when the pressure of the pressure storage tank is higher than the set value, the compressor stops automatically.

2. The compressor automatic start-stop control system according to claim 1, characterized in that: The process gas outlet of the compressor is equipped with a check valve.

3. The compressor automatic start-stop control system according to claim 1, characterized in that: The pressure storage tank is also equipped with a pressure alarm.

4. The compressor automatic start-stop control system according to claim 1, characterized in that: The automatic control valve is a solenoid valve that controls the start and stop of the compressor.

5. The compressor automatic start-stop control system according to claim 1, characterized in that: When the pressure of the pressure storage tank is lower than 3.5MPa, the compressor automatically starts; when the pressure of the pressure storage tank is higher than 5.31MPa, the compressor automatically stops.

6. The compressor automatic start-stop control system according to claim 1, characterized in that: The system is equipped with a manual emergency stop button.

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