CN114458820A - Valve control device applied to waste gas treatment system - Google Patents
Valve control device applied to waste gas treatment system Download PDFInfo
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- CN114458820A CN114458820A CN202210136274.8A CN202210136274A CN114458820A CN 114458820 A CN114458820 A CN 114458820A CN 202210136274 A CN202210136274 A CN 202210136274A CN 114458820 A CN114458820 A CN 114458820A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
- F16K31/1245—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated with more than one valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a valve control device applied to a waste gas treatment system, which comprises a gas input end, a control module, a first valve, a second valve, an execution module and a control valve, wherein the control module is used for controlling the first valve and the second valve; the gas input end is connected with the gas to be processed, the gas input end is connected with the first input selection end of the first valve, the first output selection end of the first valve is connected with the second input selection end of the second valve, the second output selection end of the second valve is connected with the input end of the execution module, the output end of the execution module is connected with the control valve, and the control module is electrically connected with the first valve and the second valve respectively. Compared with the situation that the gas to be treated can enter the execution module through a plurality of complicated devices, the valve control device applied to the waste gas treatment system in the embodiment can ensure that the gas to be treated directly enters the execution module through the first valve and the second valve, so that the time for opening the control valve can be shortened, and the response capability of the valve control device applied to the waste gas treatment system is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of valves, in particular to a valve control device applied to an exhaust gas treatment system.
Background
When the tail gas of the ship and the land flue gas are desulfurized, denitrated or the waste gas is recycled, a valve is needed to control whether the flue gas bypasses or leads to a waste gas treatment system.
Because the valves in the exhaust gas treatment system are interlocked to control more system devices, the requirements for the valves in the system are higher, and the requirements for higher valve response are required.
For the adjustable valve, the valve controlled by the positioner in the market has slow response to the quick opening of the control valve, and can not meet the requirements of partial exhaust gas treatment systems.
Disclosure of Invention
The invention provides a valve control device applied to an exhaust gas treatment system, which is used for accelerating the response of a control valve.
The embodiment of the invention provides a valve control device applied to a waste gas treatment system, which comprises a gas input end, a control module, a first valve, a second valve, an execution module and a control valve, wherein the control module is used for controlling the first valve and the second valve;
the gas input end is connected with a gas to be processed, the gas input end is connected with a first input selection end of the first valve, a first output selection end of the first valve is connected with a second input selection end of the second valve, a second output selection end of the second valve is connected with the input end of the execution module, the output end of the execution module is connected with a control valve, and the control module is respectively electrically connected with the first valve and the second valve;
the control module is used for controlling the first valve to be in a working state and the second valve to be in a failure state when receiving a command of quickly opening the control valve, so that the gas input end, the first valve and the second valve form a first passage, and the gas to be treated enters the execution module through the first passage to open the control valve.
Optionally, the first valve includes a first end, a second end, a third end, a fourth end and a fifth end, the first end is communicated with the second end, the fourth end is communicated with the fifth end, the third end is closed, the second valve includes a sixth end, a seventh end, an eighth end, a ninth end and a tenth end, the sixth end is communicated with the seventh end, the ninth end is communicated with the tenth end, the sixth end is further communicated with the external environment, and the eighth end is closed;
the control module is used for controlling the first valve to be in a working state and the second valve to be in a failure state, and controlling the first end to be connected with the gas input end, the second end to be connected with the ninth end, and the tenth end to be connected with the input end of the execution module.
Optionally, the valve control device applied to the exhaust gas treatment system further includes a positioning module, an input end of the positioning module is connected to the gas input end, an output end of the positioning module is connected to the third input selection end of the first valve, and a control end of the positioning module is electrically connected to the control module;
the control module is used for controlling the volume of the gas to be processed flowing into the positioning module when receiving a control valve opening degree adjusting instruction, controlling the first valve to be in a failure state and controlling the second valve to be in a failure state, so that the first passage is disconnected, the gas input end, the positioning module, the first valve and the second valve form a second passage, and the gas to be processed enters the execution module through the second passage to adjust the opening degree of the control valve.
Optionally, the control module is configured to control the first valve to be in a failure state, and control the third end to be connected to the gas input end, the fourth end to be connected to the output end of the positioning module, the fifth end to be connected to the ninth end, and the tenth end to be connected to the input end of the execution module when the second valve is in a failure state.
Optionally, the control module is further configured to, when receiving a command for rapidly closing the control valve, control the first valve to be in a failure state and the second valve to be in a working state, so that the first passage is disconnected, the first valve and the second valve form a third passage, and the gas to be processed in the execution module is discharged through the third passage, so that the control valve is closed.
Optionally, the control module is configured to control the third end to be connected to the gas input end, the fifth end to be connected to the eighth end, and the seventh end to be connected to the input end of the execution module when the first valve is in a failure state and the second valve is in a working state.
Optionally, the valve control device applied to the exhaust gas treatment system further comprises an input valve, an input end of the input valve is connected with the gas input end, and an output end of the input valve is connected with the first input selection end; the input valve is used for filtering the gas to be treated and controlling the pressure of the gas to be treated to be maintained at a set value.
Optionally, the valve control device applied to the exhaust gas treatment system further includes an acceleration module, an input end of the acceleration module is connected to the second output selection end, an output end of the acceleration module is connected to an input end of the execution module, and the acceleration module is used for accelerating the flow rate of the gas to be treated between the second valve and the execution module.
Optionally, the first valve and the second valve are both solenoid valves.
Optionally, the execution module is a pneumatic actuator.
The embodiment of the invention provides a valve control device applied to a waste gas treatment system, which comprises a gas input end, a control module, a first valve, a second valve, an execution module and a control valve, wherein the control module is used for controlling the first valve and the second valve; the gas input end is connected with the gas to be processed, the gas input end is connected with the first input selection end of the first valve, the first output selection end of the first valve is connected with the second input selection end of the second valve, the second output selection end of the second valve is connected with the input end of the execution module, the output end of the execution module is connected with the control valve, and the control module is respectively electrically connected with the first valve and the second valve; the control module is used for controlling the first valve to be in a working state and controlling the second valve to be in a failure state when receiving a command of quickly opening the control valve, so that the gas input end, the first valve and the second valve form a first passage, and gas to be treated enters the execution module through the first passage to open the control valve. Compared with the situation that the gas to be treated can enter the execution module through a plurality of complicated devices, the valve control device applied to the waste gas treatment system of the embodiment controls the gas to be treated to enter the execution module through the first valve and the second valve under the condition that the control valve needs to be opened quickly so as to open the control valve.
Drawings
FIG. 1 is a schematic structural diagram of a valve control device for an exhaust gas treatment system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another valve control device for an exhaust treatment system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another valve control device for an exhaust treatment system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another valve control device for an exhaust treatment system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another valve control device applied to an exhaust gas treatment system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a valve control device applied to an exhaust gas treatment system according to an embodiment of the present invention, and referring to fig. 1, the valve control device applied to the exhaust gas treatment system includes a gas input end a1, a control module 10, a first valve 11, a second valve 12, an execution module 13, and a control valve 14; the gas input end A1 is connected with a gas to be processed, the gas input end A1 is connected with a first input selection end A2 of the first valve 11, a first output selection end U1 of the first valve 11 is connected with a second input selection end A3 of the second valve 12, a second output selection end U2 of the second valve 12 is connected with the input end of the execution module 13, the output end of the execution module 13 is connected with the control valve 14, and the control module 10 is respectively electrically connected with the first valve 11 and the second valve 12; the control module 10 is configured to control the first valve 11 to be in the working state and the second valve 12 to be in the failure state when receiving the command for rapidly opening the control valve, so that the gas input end a1, the first valve 11, and the second valve 12 form a first path through which the gas to be treated enters the execution module 13 to open the control valve 14.
The gas to be treated can be ship tail gas or land flue gas and other gases. The operating state or the failure state is two different operating states of the first valve 11 or the second valve 12. The first valve 11 and the second valve 12 each include a plurality of paths therein, and when the first valve 11 or the second valve 12 is in a certain state, the gas input a1 is in communication with only one path of the first valve 11, the first valve 11 is also in communication with only one path of the second valve 12, and the actuator module 13 is also in communication with only one path of the second valve 12. When receiving the command of rapidly opening the control valve, the control module 10 controls the first valve 11 to be in the working state and controls the second valve 12 to be in the failure state, for example, at this time, the first path of the first valve is connected to the gas input end a1, and the first path is connected to the second path of the second valve 12, so that the gas to be processed is output from the gas input end a1, input into the execution module 13 through the first path of the first valve 11 and the second path of the second valve 12, and input into the control valve 14 through the execution module 13. Optionally, the execution module 13 is a pneumatic actuator, and the pneumatic actuator is an execution device that opens and closes or adjusts a valve by using air pressure to drive. When the gas to be treated enters the pneumatic actuator, the double pistons in the pneumatic actuator linearly move towards the two ends, the rack on the piston drives the gear on the rotating shaft to rotate 90 degrees in the anticlockwise direction, and the control valve 14 is opened.
The valve control device applied to the exhaust gas treatment system provided by the embodiment can be applied to the exhaust gas treatment system. In the process of waste gas treatment, if an emergency situation occurs, the control valve needs to be opened quickly. Compared with the situation that the gas to be treated can enter the execution module through a plurality of complicated devices, the valve control device applied to the waste gas treatment system of the embodiment controls the gas to be treated to enter the execution module through the first valve and the second valve under the condition that the control valve needs to be opened quickly so as to open the control valve. Meanwhile, the first valve and the second valve are convenient to manufacture and low in cost, and the cost of the valve control device applied to the waste gas treatment system can be reduced.
With continued reference to fig. 1, optionally, the first valve 11 includes a first end B1, a second end B2, a third end B3, a fourth end B4 and a fifth end B5, the first end B1 communicates with the second end B2, the fourth end B4 communicates with the fifth end B5, the third end B3 is cut off, the second valve 12 includes a sixth end B6, a seventh end B7, an eighth end B8, a ninth end B9 and a tenth end B10, the sixth end B6 communicates with the seventh end B7, the ninth end B9 communicates with the tenth end B10, the sixth end B6 further communicates with the external environment, and the eighth end B8 is cut off;
the control module 10 is configured to control the first end B1 to be connected to the gas input end a1, the second end B2 to the ninth end B9, and the tenth end B10 to be connected to the input end of the execution module 13 when the first valve 11 is in the operating state and the second valve 12 is in the failure state.
Optionally, the first valve 11 and the second valve 12 are both solenoid valves. The first valve 11 is in a working state when powered on and in a failure state when powered off, and the second valve 12 is in a working state when powered on and in a failure state when powered off. When the control module 10 receives the command of rapidly opening the control valve, the first valve 11 is controlled to be powered on, and the second valve 12 is controlled to be powered off. When the first valve 11 is powered, the first end B1 of the first valve 11 is connected to the gas input end a1 as the first input selection end a2, the second end B2 is connected to the second valve 12 as the first output selection end U1, the ninth end B9 is connected to the second end B2 as the second input selection end A3, and the tenth end B10 is connected to the input end of the execution module 13 as the second output selection end U2. Therefore, when the control module 10 controls the first valve 11 to be powered on and the second valve 12 to be powered off, the gas to be processed enters the execution module 13 through the gas input end a1, the first end B1, the second end B2, the ninth end B9 and the tenth end B10 to open the control valve 14.
Fig. 2 is a schematic structural diagram of another valve control device applied to an exhaust gas treatment system according to an embodiment of the present invention, and referring to fig. 2, optionally, the valve control device applied to the exhaust gas treatment system further includes a positioning module 15, an input end of the positioning module 15 is connected to a gas input end a1, an output end of the positioning module 15 is connected to a third input selection end a4 of the first valve 11, and a control end of the positioning module 15 is electrically connected to the control module 10;
the control module 10 is configured to, when receiving a control valve opening degree adjustment instruction, control the volume of the gas to be processed flowing into the positioning module 15, and control the first valve 11 to be in a failure state and the second valve 12 to be in a failure state, so that the first path is disconnected, the gas input end a1, the positioning module 15, the first valve 11, and the second valve 12 form a second path, so that the gas to be processed enters the execution module 13 through the second path to adjust the opening degree of the control valve 14.
The positioning module 15 may be a valve positioner, and the control valve opening degree adjustment instruction may be a current signal, where each current value corresponds to an opening degree, an exemplary current value is 4-20mA, and a corresponding opening angle is 0-90 °, where 4mA corresponds to an opening angle of the control valve 14 of 0 °, and 20mA corresponds to an opening angle of the control valve 14 of 90 °. The control module 10 controls the opening angle of the control valve 14 by controlling the volume of the gas to be treated flowing into the positioning module 15, that is, the current value corresponds to the volume of the gas to be treated flowing into the positioning module 15, and the volume of the gas to be treated corresponds to the opening angle of the control valve 14. When the first valve 11 is in the failure state and the second valve 12 is in the failure state, the first passage is disconnected, that is, the gas to be processed cannot enter the execution module 13 through the first passage. At this time, the gas to be processed enters the execution module 13 through a second passage formed by the gas input end a1, the positioning module 15, the first valve 11, and the second valve 12, and then the opening degree of the control valve 14 is adjusted by the positioning module 15.
With continued reference to fig. 2, optionally, the control module 10 is configured to control the third end B3 to be connected to the gas input end a1, the fourth end B4 to be connected to the output end of the positioning module 15, the fifth end B5 to be connected to the ninth end B9, and the tenth end B10 to be connected to the input end of the execution module 13 when the first valve 11 is in the failure state and the second valve 12 is in the failure state.
When the control module 10 receives the control valve opening degree adjusting instruction, the first valve 11 and the second valve 12 are controlled to be powered off. When the first valve 11 is de-energized, the third end B3 of the first valve 11 is connected to the gas input end a1 as the first input selection end a2, the fourth end B4 is connected to the output end of the positioning module 15 as the third input selection end a4, the fifth end B5 is connected to the second valve 12 as the first output selection end U1, the ninth end B9 is connected to the fifth end B5 as the second input selection end A3, and the tenth end B10 is connected to the input end of the execution module 13 as the second output selection end U2. Therefore, when the control module 10 controls the first valve 11 to be powered on and the second valve 12 to be powered off, after the gas to be processed enters the first valve 11 through the third port B3, the third port B3 is blocked in the first valve 11, and the gas cannot be continuously transmitted to the second valve 13, so that the gas to be processed cannot be directly transmitted to the execution module 13 through the first valve 11 and the second valve 12. The gas to be processed enters the execution module 13 through the gas input end a1, the positioning module 15, the fourth end B4, the fifth end B5, the ninth end B9 and the tenth end B10, and then the opening degree of the control valve 14 is adjusted through the positioning module 15.
Fig. 3 is a schematic structural diagram of another valve control device applied to an exhaust gas treatment system according to an embodiment of the present invention, referring to fig. 3, optionally, the control module 10 is further configured to, when receiving a command of a quick-closing control valve, control the first valve 11 to be in a failure state and the second valve 12 to be in an operating state, so that the first passage is disconnected, the first valve 11 and the second valve 12 form a third passage, and the gas to be treated in the execution module 13 is discharged through the third passage, so that the control valve 14 is closed.
When receiving the rapid-closing control valve command, the control module 10 controls the states of the first valve 11 and the second valve 12 to disconnect the first passage, so that the gas to be processed cannot enter the execution module 13 through the first valve 11 and the second valve 12. The residual gas in the execution module 13 is discharged to the external environment through the second valve 12, so that the piston in the execution module 13 is pushed by the gas to move linearly towards the middle, and the rack on the piston drives the gear on the rotating shaft to rotate clockwise, so as to close the control valve 14.
With continued reference to fig. 3, optionally, the control module 10 is configured to control the connection of the third end B3 with the gas input a1, the connection of the fifth end B5 with the eighth end B8, and the connection of the seventh end B7 with the input of the execution module 13 when the first valve 11 is in the failure state and the second valve 12 is in the working state.
When receiving the command of rapidly closing the control valve, the control module 10 controls the first valve 11 to lose power and the second valve 12 to get power. When the first valve 11 is de-energized, the third end B3 of the first valve 11 is connected to the gas input end a1 as the first input selection end a2, the fifth end B5 is connected to the second valve 12 as the first output selection end U1, the eighth end B8 is connected to the fifth end B5 as the second input selection end A3, and the seventh end B7 is connected to the input end of the execution module 13 as the second output selection end U2. Therefore, when the control module 10 controls the first valve 11 to lose power and the second valve 12 to get power, after the gas to be processed enters the first valve 11 through the third port B3, the third port B3 is blocked in the first valve 11, and the gas cannot be continuously transmitted to the second valve 13, so that the gas to be processed cannot be directly transmitted to the execution module 13 through the first valve 11 and the second valve 12. The residual gas to be processed in the execution module 13 is exhausted to the external environment through the seventh end B7 and the sixth end B6, so that the rack of the execution module 13 drives the gear on the rotating shaft to rotate, and the control valve 14 is closed.
Be applied to exhaust gas treatment system's valve control device in this embodiment when closing control valve, only need control the state of first valve and second valve, can be with the gaseous direct discharge through the second valve of pending in the execution module to close control valve has accelerated the process of closing control valve, has promoted the response ability of being applied to exhaust gas treatment system's valve control device.
Fig. 4 is a schematic structural diagram of another valve control apparatus applied to an exhaust gas treatment system according to an embodiment of the present invention, referring to fig. 4, when the valve control apparatus applied to the exhaust gas treatment system includes a positioning module 15, and a control module 10 receives a command for rapidly opening a control valve, the control module controls the first valve 11 to be de-energized and the second valve 12 to be energized, so that the gas input end a1 is connected to the first end B1, the second end B2 is connected to the ninth end B9, and the tenth end B10 is connected to an input end of the execution module 13, and further, the gas to be treated is directly input to the execution module 13 through the first valve 11 and the second valve 12. Meanwhile, the output end of the positioning module 14 is connected to the third end B3 as the third input selecting end a4, and after the gas to be processed flows into the first valve 11 through the positioning module 15, the gas to be processed is stopped in the first valve 11 and cannot be continuously transmitted to the second valve.
When the control module 10 receives the control valve opening degree adjustment instruction, the connection condition between the first valve 11 and the gas input end a1 and the positioning module 15, the connection condition between the first valve 11 and the second valve 12, and the connection condition between the second valve 12 and the execution module 13 are the same as those in fig. 2, and the description of this embodiment is omitted here.
When receiving a command of rapidly closing the control valve, the control module 10 controls the first valve 11 to lose power and the second valve 12 to get power, so that the gas input end a1 is connected with the third end B3, the fourth end B4 is connected with the output end of the positioning module 15 as the third input selection end a4, the fifth end B5 is connected with the eighth end B8, and the seventh end B7 is connected with the input end of the execution module 13. Therefore, the gas to be treated directly enters the first valve 11 through the gas input end a1, and then is stopped in the first valve 11, so that the gas cannot be continuously transmitted to the second valve 12. After the gas to be processed is input into the first valve 11 and the second valve 12 through the positioning module 15, the gas to be processed is stopped in the second valve 12 and cannot flow into the execution module 13, so that the gas to be processed cannot be transmitted from the gas input end a1 to the execution module 13. The residual gas to be processed in the execution module 13 is exhausted to the external environment through the seventh end B7 and the sixth end B6, so that the rack of the execution module 13 drives the gear on the rotating shaft to rotate, and the control valve 14 is closed. Fig. 4 only illustrates the connection status of each device when the control module 10 receives the command for rapidly closing the control valve.
The valve control device applied to the waste gas treatment system, provided by the embodiment, can be used for quickly opening the control valve through the first valve and the second valve, quickly closing the control valve through the second valve, and also can be used for adjusting the opening degree of the control valve through the positioning module, so that the user requirements are met, and the function of the valve control device applied to the waste gas treatment system is more complete.
Fig. 5 is a schematic structural diagram of another valve control device applied to an exhaust gas treatment system according to an embodiment of the present invention, and referring to fig. 5, optionally, the valve control device applied to the exhaust gas treatment system further includes an input valve 16, an input end of the input valve 16 is connected to a gas input end a1, and an output end of the input valve 16 is connected to a first input selection end a 2; the input valve 16 is used for filtering the gas to be treated and controlling the pressure of the gas to be treated to be maintained at a set value.
The input valve 16 can be a filtering pressure reducing valve, can filter moisture and particulate matters in the gas to be treated, and plays a certain role in stabilizing pressure to maintain the pressure in the gas to be treated at 6-8 bar.
With continued reference to fig. 5, optionally, the valve control apparatus applied to the exhaust gas treatment system further includes an acceleration module 17, an input end of the acceleration module 17 is connected to the second output selection end U2, an output end of the acceleration module 17 is connected to an input end of the execution module 13, and the acceleration module 17 is configured to accelerate a flow rate of the gas to be treated between the second valve 12 and the execution module 13.
The flow path in the acceleration module 17 is wider, which can accelerate the flow rate of the gas to be treated between the second valve 12 and the execution module 13. Meanwhile, when the acceleration module 17 works normally, gas needs to be continuously input into the acceleration module 17, and the normal operation of the acceleration module 17 can be ensured by connecting the gas input end a1 with the acceleration module 17 (when the valve control device applied to the exhaust gas treatment system comprises the input valve 16, the output end of the input valve 16 can be connected with the acceleration module 17, so that gas is continuously input into the acceleration module 17). It should be noted that when the gas to be processed flows into the execution module 13 through the second valve 12 and the acceleration module 17, the path of the gas to be processed in the acceleration module 17 and the path of the gas input end a1 (or the input valve 16) directly flowing into the acceleration module 17 to ensure that the acceleration module 17 works normally are independent of each other, so that the gas controlling the normal work of the acceleration module 17 does not flow into the execution module 13, which affects the opening and closing of the control valve 14.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A valve control device applied to an exhaust gas treatment system is characterized by comprising a gas input end, a control module, a first valve, a second valve, an execution module and a control valve;
the gas input end is connected with a gas to be processed, the gas input end is connected with a first input selection end of the first valve, a first output selection end of the first valve is connected with a second input selection end of the second valve, a second output selection end of the second valve is connected with the input end of the execution module, the output end of the execution module is connected with a control valve, and the control module is respectively electrically connected with the first valve and the second valve;
the control module is used for controlling the first valve to be in a working state and the second valve to be in a failure state when receiving a command of quickly opening the control valve, so that the gas input end, the first valve and the second valve form a first passage, and the gas to be treated enters the execution module through the first passage to open the control valve.
2. The valve control apparatus applied to an exhaust gas treatment system according to claim 1, wherein the first valve includes a first end, a second end, a third end, a fourth end and a fifth end, the first end and the second end are communicated, the fourth end and the fifth end are communicated, the third end is blocked, the second valve includes a sixth end, a seventh end, an eighth end, a ninth end and a tenth end, the sixth end and the seventh end are communicated, the ninth end and the tenth end are communicated, the sixth end is also communicated with the external environment, and the eighth end is blocked;
the control module is used for controlling the first valve to be in a working state and the second valve to be in a failure state, and controlling the first end to be connected with the gas input end, the second end to be connected with the ninth end, and the tenth end to be connected with the input end of the execution module.
3. The valve control apparatus applied to the exhaust gas treatment system according to claim 2, further comprising a positioning module, wherein an input end of the positioning module is connected with the gas input end, an output end of the positioning module is connected with the third input selection end of the first valve, and a control end of the positioning module is electrically connected with the control module;
the control module is used for controlling the volume of the gas to be processed flowing into the positioning module when receiving a control valve opening degree adjusting instruction, controlling the first valve to be in a failure state and controlling the second valve to be in a failure state, so that the first passage is disconnected, the gas input end, the positioning module, the first valve and the second valve form a second passage, and the gas to be processed enters the execution module through the second passage to adjust the opening degree of the control valve.
4. The valve control apparatus applied to the exhaust gas treatment system according to claim 3, wherein the control module is configured to control the third end to be connected to the gas input end, the fourth end to be connected to the output end of the positioning module, the fifth end to be connected to the ninth end, and the tenth end to be connected to the input end of the execution module when the first valve is in the failure state and the second valve is in the failure state.
5. The valve control device applied to the exhaust gas treatment system according to claim 2, wherein the control module is further configured to control the first valve to be in the failure state and the second valve to be in the working state when receiving a command of a quick-closing control valve, so that the first passage is disconnected, the first valve and the second valve form a third passage, and the gas to be treated in the execution module is discharged through the third passage, so that the control valve is closed.
6. The valve control apparatus applied to an exhaust gas treatment system according to claim 5, wherein the control module is configured to control the third end to be connected to the gas input, the fifth end to be connected to the eighth end, and the seventh end to be connected to the input of the execution module when the first valve is in the failure state and the second valve is in the operation state.
7. The valve control apparatus applied to an exhaust gas treatment system according to claim 1, further comprising an input valve, an input end of the input valve being connected to the gas input end, an output end of the input valve being connected to the first input selection end; the input valve is used for filtering the gas to be treated and controlling the pressure of the gas to be treated to be maintained at a set value.
8. The valve control apparatus applied to an exhaust gas treatment system according to claim 1, further comprising an acceleration module, wherein an input end of the acceleration module is connected to the second output selection end, an output end of the acceleration module is connected to an input end of the execution module, and the acceleration module is configured to accelerate a flow rate of the gas to be treated between the second valve and the execution module.
9. The valve control apparatus applied to an exhaust gas treatment system according to claim 1, wherein the first valve and the second valve are both solenoid valves.
10. The valve control apparatus applied to an exhaust gas treatment system according to claim 1, wherein the actuator is a pneumatic actuator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210136274.8A CN114458820A (en) | 2022-02-15 | 2022-02-15 | Valve control device applied to waste gas treatment system |
| PCT/CN2022/115430 WO2023155406A1 (en) | 2022-02-15 | 2022-08-29 | Valve control device applied to waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210136274.8A CN114458820A (en) | 2022-02-15 | 2022-02-15 | Valve control device applied to waste gas treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN114458820A true CN114458820A (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210136274.8A Pending CN114458820A (en) | 2022-02-15 | 2022-02-15 | Valve control device applied to waste gas treatment system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114458820A (en) |
| WO (1) | WO2023155406A1 (en) |
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| CN116085520A (en) * | 2023-04-04 | 2023-05-09 | 南京荣晟自动化设备有限公司 | Emergency cut-off adjusting multifunctional valve and use method thereof |
| WO2023155406A1 (en) * | 2022-02-15 | 2023-08-24 | 中船动力研究院有限公司 | Valve control device applied to waste gas treatment system |
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| WO2023155406A1 (en) | 2023-08-24 |
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