CN113669496B - High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant - Google Patents

High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant Download PDF

Info

Publication number
CN113669496B
CN113669496B CN202110909902.7A CN202110909902A CN113669496B CN 113669496 B CN113669496 B CN 113669496B CN 202110909902 A CN202110909902 A CN 202110909902A CN 113669496 B CN113669496 B CN 113669496B
Authority
CN
China
Prior art keywords
valve
air passage
electromagnetic directional
end opening
shaped air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110909902.7A
Other languages
Chinese (zh)
Other versions
CN113669496A (en
Inventor
贾龙
许凌云
孔庆龙
刘全生
王继强
王生辉
张艳明
李征
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Taiyuan Dongshan Gas Turbine Thermal Power Co Ltd
Original Assignee
Huaneng Taiyuan Dongshan Gas Turbine Thermal Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaneng Taiyuan Dongshan Gas Turbine Thermal Power Co Ltd filed Critical Huaneng Taiyuan Dongshan Gas Turbine Thermal Power Co Ltd
Priority to CN202110909902.7A priority Critical patent/CN113669496B/en
Publication of CN113669496A publication Critical patent/CN113669496A/en
Application granted granted Critical
Publication of CN113669496B publication Critical patent/CN113669496B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/008—Valve failure
    • 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
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/875—Control measures for coping with failures
    • F15B2211/8757—Control measures for coping with failures using redundant components or assemblies

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention relates to an electromagnetic valve, in particular to a high-reliability integrated electromagnetic valve for controlling an ESD valve of a fuel cell electric power plant. The invention solves the problem of poor control reliability of the existing ESD valve control technology. A high reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant comprises a base, a top seat, a left electromagnetic directional valve and a right electromagnetic directional valve; wherein the base is of an L-shaped block structure; the top seat is of a rectangular block structure; the base and the top seat are spliced together to form a U-shaped valve seat with an opening facing left; the inside of the base is provided with a first U-shaped air passage, a second U-shaped air passage, a first L-shaped air passage and a second L-shaped air passage respectively; the inside of the top seat is provided with a third U-shaped air passage, a fourth U-shaped air passage, a third L-shaped air passage, a first straight air passage, a second straight air passage and a third straight air passage respectively; the left electromagnetic directional valve and the right electromagnetic directional valve are assembled in the opening of the U-shaped valve seat side by side. The invention is suitable for a gas turbine power plant.

Description

High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant
Technical Field
The invention relates to an electromagnetic valve, in particular to a high-reliability integrated electromagnetic valve for controlling an ESD valve of a fuel cell electric power plant.
Background
In a gas turbine power plant, when a gas turbine unit suddenly fails or equipment in a natural gas pressure regulating station suddenly leaks, an ESD valve (emergency shutoff valve) on a natural gas pipeline needs to be quickly closed, so that a natural gas source is emergently shut off, and the safety of the gas turbine unit or the equipment in the natural gas pressure regulating station is ensured. At present, the opening and closing actions of the ESD valve are controlled by a single electromagnetic directional valve (the electromagnetic directional valve is a two-position five-way electromagnetic directional valve). The specific control mode is as follows: firstly, a worker controls the electromagnetic directional valve to be electrified through an external control device (such as an MCC drawer switch), so that the first valve port and the second valve port of the electromagnetic directional valve are communicated, and the fourth valve port and the fifth valve port are communicated. At this time, air from the air source sequentially enters the left cylinder chamber of the double-acting cylinder (the double-acting cylinder is used for driving the ESD valve) through the first valve port of the electromagnetic directional valve and the second valve port of the electromagnetic directional valve, so that the piston of the double-acting cylinder is pushed to move rightwards (the air in the right cylinder chamber of the double-acting cylinder is sequentially discharged outwards through the fourth valve port and the fifth valve port of the electromagnetic directional valve), and the ESD valve is driven to be opened. After the ESD valve is opened, the gas unit and the equipment in the natural gas pressure regulating station can start to operate. In the operation process, when the gas unit suddenly fails or equipment in the natural gas pressure regulating station suddenly leaks, a worker controls the electromagnetic directional valve to lose electricity through external control equipment, so that the first valve port and the fourth valve port of the electromagnetic directional valve are communicated, and the second valve port and the third valve port are communicated. At this time, air from the air source sequentially enters the right cylinder chamber of the double-acting cylinder through the first valve port of the electromagnetic directional valve and the fourth valve port of the electromagnetic directional valve, so that the piston of the double-acting cylinder is pushed to move leftwards (the air in the left cylinder chamber of the double-acting cylinder is sequentially discharged outwards through the second valve port and the third valve port of the electromagnetic directional valve), and the ESD valve is driven to be closed. The control method is limited by its own principle, and has a problem of poor control reliability. Specifically, when the gas unit and the equipment in the natural gas pressure regulating station normally operate, once the electromagnetic reversing valve suddenly fails, the ESD valve is abnormally closed, so that the natural gas source is abnormally turned off, and the gas unit and the equipment in the natural gas pressure regulating station are abnormally stopped. Based on the above, it is necessary to invent a high reliability integrated solenoid valve for controlling an ESD valve of a fuel cell electric power plant to solve the problem of poor control reliability of the existing ESD valve control technology.
Disclosure of Invention
The invention provides a high-reliability integrated electromagnetic valve for controlling an ESD valve of a fuel cell electric power plant, which aims to solve the problem of poor control reliability of the existing ESD valve control technology.
The invention is realized by adopting the following technical scheme:
A high reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant comprises a base, a top seat, a left electromagnetic directional valve and a right electromagnetic directional valve;
wherein the base is of an L-shaped block structure; the top seat is of a rectangular block structure; the base and the top seat are spliced together to form a U-shaped valve seat with an opening facing left;
the inside of the base is provided with a first U-shaped air passage, a second U-shaped air passage, a first L-shaped air passage and a second L-shaped air passage respectively;
The head end opening of the first U-shaped air passage penetrates through the upper surface of the horizontal section of the base, and the tail end opening penetrates through the upper surface of the vertical section of the base; the head end opening of the second U-shaped air passage penetrates through the upper surface of the horizontal section of the base, and the tail end opening penetrates through the upper surface of the vertical section of the base; the head end opening of the first L-shaped air passage penetrates through the upper surface of the horizontal section of the base, and the tail end opening penetrates through the front surface of the horizontal section of the base; the head end opening of the second L-shaped air passage penetrates through the upper surface of the horizontal section of the base, and the tail end opening penetrates through the rear surface of the horizontal section of the base;
The inside of the top seat is provided with a third U-shaped air passage, a fourth U-shaped air passage, a third L-shaped air passage, a first straight air passage, a second straight air passage and a third straight air passage respectively;
the head end opening and the tail end opening of the third U-shaped air passage are communicated with the lower surface of the footstock in a sealing way, and the tail end opening of the third U-shaped air passage is communicated with the tail end opening of the first U-shaped air passage in a sealing way; the head end opening and the tail end opening of the fourth U-shaped air passage are communicated with the lower surface of the footstock in a sealing way, and the tail end opening of the fourth U-shaped air passage is communicated with the tail end opening of the second U-shaped air passage in a sealing way; the head end opening of the third L-shaped air passage penetrates through the lower surface of the top seat, and the tail end opening penetrates through the rear surface of the top seat; the head end opening of the first straight air channel penetrates through the lower surface of the top seat, and the tail end opening penetrates through the upper surface of the top seat; the head end opening of the second straight air passage penetrates through the lower surface of the top seat, and the tail end opening penetrates through the upper surface of the top seat; the head end opening of the third straight air channel penetrates through the lower surface of the top seat, and the tail end opening penetrates through the upper surface of the top seat;
the left electromagnetic reversing valve and the right electromagnetic reversing valve are assembled in the opening of the U-shaped valve seat side by side, and the left electromagnetic reversing valve and the right electromagnetic reversing valve are two-position five-way electromagnetic reversing valves;
the first valve port of the left electromagnetic directional valve is communicated with the head end opening of the third straight air passage in a sealing way; the second valve port of the left electromagnetic directional valve is communicated with the head end opening of the second L-shaped air passage in a sealing way; the third valve port of the left electromagnetic directional valve is communicated with the head end opening of the fourth U-shaped air passage in a sealing way; the fourth valve port of the left electromagnetic directional valve is communicated with the head end opening of the first U-shaped air passage in a sealing way; the fifth valve port of the left electromagnetic directional valve is communicated with the head end opening of the first straight air passage in a sealing way;
The first valve port of the right electromagnetic directional valve is communicated with the head end opening of the third U-shaped air passage in a sealing way; the second valve port of the right electromagnetic directional valve is communicated with the head end opening of the second U-shaped air passage in a sealing way; the third valve port of the right electromagnetic directional valve is communicated with the head end opening of the third L-shaped air passage in a sealing way; the fourth valve port of the right electromagnetic directional valve is communicated with the head end opening of the first L-shaped air passage in a sealing way; the fifth valve port of the right electromagnetic directional valve is communicated with the head end opening of the second straight air passage in a sealing way.
When in operation, the tail end opening of the third straight air passage is communicated with an air source. The tail end opening of the second L-shaped air passage is communicated with the left cylinder chamber of the double-acting cylinder. The tail end opening of the first L-shaped air passage is communicated with the right cylinder chamber of the double-acting cylinder.
The specific working process is as follows: firstly, a worker controls the left electromagnetic directional valve and the right electromagnetic directional valve to be electrified through an external control device (such as an MCC drawer switch), so that on one hand, a first valve port and a second valve port of the left electromagnetic directional valve are communicated, a fourth valve port and a fifth valve port of the left electromagnetic directional valve are communicated, and on the other hand, the first valve port and the second valve port of the right electromagnetic directional valve are communicated, and the fourth valve port and the fifth valve port of the right electromagnetic directional valve are communicated. At this time, air from an air source sequentially enters the left cylinder chamber of the double-acting cylinder through the third straight air passage, the first valve port of the left electromagnetic directional valve, the second valve port of the left electromagnetic directional valve and the second L-shaped air passage, so that the piston of the double-acting cylinder is pushed to move rightwards (the air in the right cylinder chamber of the double-acting cylinder is sequentially discharged outwards through the first L-shaped air passage, the fourth valve port of the right electromagnetic directional valve, the fifth valve port of the right electromagnetic directional valve and the second straight air passage), and the ESD valve is driven to be opened. After the ESD valve is opened, the gas unit and the equipment in the natural gas pressure regulating station can start to operate. In the operation process, when the gas unit suddenly breaks down or equipment in the natural gas pressure regulating station suddenly leaks, a worker controls the left electromagnetic directional valve and the right electromagnetic directional valve to lose electricity through external control equipment, so that on one hand, the first valve port and the fourth valve port of the left electromagnetic directional valve are communicated, the second valve port and the third valve port of the left electromagnetic directional valve are communicated, and on the other hand, the first valve port and the fourth valve port of the right electromagnetic directional valve are communicated, and the second valve port and the third valve port of the right electromagnetic directional valve are communicated. At this time, air from an air source sequentially enters the right cylinder chamber of the double-acting cylinder through the third straight air passage, the first valve port of the left electromagnetic directional valve, the fourth valve port of the left electromagnetic directional valve, the first U-shaped air passage, the third U-shaped air passage, the first valve port of the right electromagnetic directional valve, the fourth valve port of the right electromagnetic directional valve and the first L-shaped air passage, so that the piston of the double-acting cylinder is pushed to move leftwards (the air in the left cylinder chamber of the double-acting cylinder sequentially passes through the second L-shaped air passage, the second valve port of the left electromagnetic directional valve, the third valve port of the left electromagnetic directional valve, the fourth U-shaped air passage, the second valve port of the right electromagnetic directional valve, the third valve port of the right electromagnetic directional valve and the third L-shaped air passage to be discharged outwards), and the ESD valve is driven to be closed.
When the gas unit and the equipment in the natural gas pressure regulating station normally operate, if the left electromagnetic directional valve suddenly fails (namely, the left electromagnetic directional valve suddenly loses electricity, the first valve port and the fourth valve port of the left electromagnetic directional valve are communicated, and the second valve port and the third valve port are communicated), air from an air source sequentially passes through the third straight air passage, the first valve port of the left electromagnetic directional valve, the fourth valve port of the left electromagnetic directional valve, the first U-shaped air passage, the third U-shaped air passage, the first valve port of the right electromagnetic directional valve, the second U-shaped air passage, the fourth U-shaped air passage, the third valve port of the left electromagnetic directional valve, the second valve port of the left electromagnetic directional valve and the second L-shaped air passage enter the left cylinder chamber of the double-acting cylinder, so that the piston of the double-acting cylinder is kept stationary (the air in the right cylinder chamber of the double-acting cylinder is sequentially discharged outwards through the first L-shaped air passage, the fourth valve port of the right electromagnetic directional valve, the fifth valve port of the right electromagnetic directional valve and the second straight air passage of the ESD valve), and the valve is kept open.
When the gas unit and equipment in the natural gas pressure regulating station normally operate, if the right electromagnetic directional valve suddenly fails (namely, the right electromagnetic directional valve suddenly loses electricity, the first valve port and the fourth valve port of the right electromagnetic directional valve are communicated, and the second valve port and the third valve port are communicated), air from an air source sequentially enters the left cylinder chamber of the double-acting cylinder through the third straight air passage, the first valve port of the left electromagnetic directional valve, the second valve port of the left electromagnetic directional valve and the second L-shaped air passage, so that the piston of the double-acting cylinder keeps motionless (the air in the right cylinder chamber of the double-acting cylinder sequentially passes through the first L-shaped air passage, the fourth valve port of the right electromagnetic directional valve, the first valve port of the right electromagnetic directional valve, the third U-shaped air passage, the first U-shaped air passage, the fourth valve port of the left electromagnetic directional valve, the fifth valve port of the left electromagnetic directional valve and the first straight air passage outwards discharge), and the ESD valve keeps open.
Based on the above process, compared with the existing ESD valve control technology, the high-reliability integrated electromagnetic valve for controlling the ESD valve of the fuel cell electric power plant has the advantages that redundant control of the ESD valve is realized by adopting a brand new structure, and therefore control reliability is effectively improved. Specifically, when the gas unit and the equipment in the natural gas pressure regulating station normally operate, even if one of the electromagnetic reversing valves suddenly fails, the invention can still enable the ESD valve to be kept open, thereby effectively preventing the ESD valve from being abnormally closed, thereby effectively preventing the natural gas source from being abnormally turned off, and further effectively preventing the gas unit and the equipment in the natural gas pressure regulating station from being abnormally stopped.
The invention has reasonable structure and ingenious design, effectively solves the problem of poor control reliability of the existing ESD valve control technology, and is suitable for a gas turbine power plant.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic perspective view of a base in the present invention.
Fig. 4 is a schematic perspective view of a base in the present invention.
Fig. 5 is a schematic perspective view of a top base according to the present invention.
Fig. 6 is a schematic perspective view of a top base according to the present invention.
Fig. 7 is a schematic perspective view of the left and right electromagnetic directional valves in the present invention.
Fig. 8 is a schematic perspective view of the left and right electromagnetic directional valves in the present invention.
Fig. 9 is a control schematic of the present invention.
In the figure: 1-a base, 101 a-a head end opening of a first U-shaped air channel, 101 b-a tail end opening of a first U-shaped air channel, 102 a-a head end opening of a second U-shaped air channel, 102 b-a tail end opening of a second U-shaped air channel, 103 a-a head end opening of a first L-shaped air channel, 103 b-a tail end opening of a first L-shaped air channel, 104 a-a head end opening of a second L-shaped air channel, 104 b-a tail end opening of a second L-shaped air channel, 105 b-a tail end opening of a first straight detection duct, 106 b-a tail end opening of a second straight detection duct, 107-a first blind screw hole, 108-a first blind positioning hole; 2-footstock, 201 a-the head opening of the third U-shaped airway, 201 b-the tail opening of the third U-shaped airway, 202 a-the head opening of the fourth U-shaped airway, 202 b-the tail opening of the fourth U-shaped airway, 203 a-the head opening of the third L-shaped airway, 203 b-the tail opening of the third L-shaped airway, 204 a-the head opening of the first straight airway, 204 b-the tail opening of the first straight airway, 205 a-the head opening of the second straight airway, 205 b-the tail opening of the second straight airway, 206 a-the head opening of the third straight airway, 206 b-the tail opening of the third straight airway, 207 b-the tail opening of the third straight detection tunnel, 208 b-the tail opening of the fourth straight detection tunnel, 209 b-the tail opening of the fifth straight detection tunnel, 210 b-the tail opening of the sixth straight detection tunnel, 211-countersunk hole, 212-the second blind positioning hole, 213-the second blind hole; a first valve port of a3 a-left electromagnetic directional valve, a second valve port of a3 b-left electromagnetic directional valve, a third valve port of a3 c-left electromagnetic directional valve, a fourth valve port of a3 d-left electromagnetic directional valve, a fifth valve port of a3 e-left electromagnetic directional valve, and a mounting hole of a3 f-left electromagnetic directional valve; a first valve port of a 4 a-right electromagnetic directional valve, a second valve port of a 4 b-right electromagnetic directional valve, a third valve port of a 4 c-right electromagnetic directional valve, a fourth valve port of a 4 d-right electromagnetic directional valve, a fifth valve port of a 4 e-right electromagnetic directional valve and a mounting hole of a 4 f-right electromagnetic directional valve; 5-left ear plate; 6-front ear plate; 7-a rear ear plate; 801-left side chamber of double-acting cylinder, 802-right side chamber of double-acting cylinder, 803-piston of double-acting cylinder.
Detailed Description
A high reliability integrated electromagnetic valve for controlling an ESD valve of a fuel cell electric power plant comprises a base 1, a top seat 2, a left electromagnetic directional valve 3 and a right electromagnetic directional valve 4;
Wherein the base 1 is of an L-shaped block structure; the top seat 2 is of a rectangular block structure; the base 1 and the top seat 2 are spliced together to form a U-shaped valve seat with an opening facing left;
The inside of the base 1 is provided with a first U-shaped air passage, a second U-shaped air passage, a first L-shaped air passage and a second L-shaped air passage respectively;
The head end opening 101a of the first U-shaped air passage penetrates through the upper surface of the horizontal section of the base 1, and the tail end opening 101b penetrates through the upper surface of the vertical section of the base 1; the head end opening 102a of the second U-shaped air passage penetrates through the upper surface of the horizontal section of the base 1, and the tail end opening 102b penetrates through the upper surface of the vertical section of the base 1; the head end opening 103a of the first L-shaped air passage penetrates through the upper surface of the horizontal section of the base 1, and the tail end opening 103b penetrates through the front surface of the horizontal section of the base 1; the head end opening 104a of the second L-shaped air passage penetrates through the upper surface of the horizontal section of the base 1, and the tail end opening 104b penetrates through the rear surface of the horizontal section of the base 1;
The inside of the footstock 2 is respectively provided with a third U-shaped air passage, a fourth U-shaped air passage, a third L-shaped air passage, a first straight air passage, a second straight air passage and a third straight air passage;
The head end opening 201a and the tail end opening 201b of the third U-shaped air channel are communicated with the lower surface of the footstock 2, and the tail end opening 201b of the third U-shaped air channel is communicated with the tail end opening 101b of the first U-shaped air channel in a sealing way; the head end opening 202a and the tail end opening 202b of the fourth U-shaped air passage are communicated with the lower surface of the footstock 2, and the tail end opening 202b of the fourth U-shaped air passage is communicated with the tail end opening 102b of the second U-shaped air passage in a sealing way; the head opening 203a of the third L-shaped air passage penetrates through the lower surface of the top seat 2, and the tail opening 203b penetrates through the rear surface of the top seat 2; the head end opening 204a of the first straight air channel penetrates through the lower surface of the top seat 2, and the tail end opening 204b penetrates through the upper surface of the top seat 2; the head end opening 205a of the second straight air passage penetrates through the lower surface of the top seat 2, and the tail end opening 205b penetrates through the upper surface of the top seat 2; the head end opening 206a of the third straight air passage penetrates through the lower surface of the top seat 2, and the tail end opening 206b penetrates through the upper surface of the top seat 2;
The left electromagnetic directional valve 3 and the right electromagnetic directional valve 4 are assembled in the opening of the U-shaped valve seat side by side, and the left electromagnetic directional valve 3 and the right electromagnetic directional valve 4 are two-position five-way electromagnetic directional valves;
The first valve port 3a of the left electromagnetic directional valve 3 is communicated with the head end opening 206a of the third straight air passage in a sealing way; the second valve port 3b of the left electromagnetic directional valve 3 is communicated with the head end opening 104a of the second L-shaped air passage in a sealing way; the third valve port 3c of the left electromagnetic directional valve 3 is communicated with the head end opening 202a of the fourth U-shaped air passage in a sealing way; the fourth valve port 3d of the left electromagnetic directional valve 3 is communicated with the head end opening 101a of the first U-shaped air passage in a sealing way; the fifth valve port 3e of the left electromagnetic directional valve 3 is communicated with the head end opening 204a of the first straight air passage in a sealing way;
the first valve port 4a of the right electromagnetic directional valve 4 is communicated with the head end opening 201a of the third U-shaped air passage in a sealing way; the second valve port 4b of the right electromagnetic directional valve 4 is communicated with the head end opening 102a of the second U-shaped air passage in a sealing way; the third valve port 4c of the right electromagnetic directional valve 4 is communicated with the head end opening 203a of the third L-shaped air passage in a sealing way; the fourth valve port 4d of the right electromagnetic directional valve 4 is communicated with the head end opening 103a of the first L-shaped air passage in a sealing way; the fifth valve port 4e of the right electromagnetic directional valve 4 is in sealed communication with the head end opening 205a of the second straight air passage.
The inside of the base 1 is also provided with a first straight detection pore canal and a second straight detection pore canal respectively; the head end opening of the first straight detection duct penetrates through the corner of the first U-shaped air passage, and the tail end opening 105b penetrates through the right surface of the base 1; the head end opening of the second straight detection duct penetrates through the corner of the second U-shaped air passage, and the tail end opening 106b penetrates through the right surface of the base 1. When the device works, a plug is embedded in each of the tail end opening of the first straight detection pore canal and the tail end opening of the second straight detection pore canal. When the first U-shaped air passage is required to be detected, the plug in the tail end opening of the first straight detection duct is detached. When the second U-shaped air passage is required to be detected, the plug in the tail end opening of the second straight detection duct is detached.
The inside of the top seat 2 is also provided with a third straight detection pore canal, a fourth straight detection pore canal, a fifth straight detection pore canal and a sixth straight detection pore canal respectively; the head end opening of the third straight detection duct penetrates through the corner of the third U-shaped air passage, and the tail end opening 207b penetrates through the front surface of the top seat 2; the head end opening of the fourth straight detection duct penetrates through the corner of the third U-shaped air passage, and the tail end opening 208b penetrates through the right surface of the top seat 2; the head end opening of the fifth straight detection duct penetrates through the corner of the fourth U-shaped air passage, and the tail end opening 209b penetrates through the right surface of the top seat 2; the head opening of the sixth straight detection duct penetrates through the corner of the fourth U-shaped air channel, and the tail opening 210b penetrates through the rear surface of the top seat 2. In operation, the tail end opening of the third straight detection pore canal, the tail end opening of the fourth straight detection pore canal, the tail end opening of the fifth straight detection pore canal and the tail end opening of the sixth straight detection pore canal are respectively embedded with a plug. When the third U-shaped air passage is required to be detected, the plug in the tail end opening of the third straight detection pore passage or the fourth straight detection pore passage is detached. When the fourth U-shaped air passage is required to be detected, the plug in the tail end opening of the fifth straight detection duct or the sixth straight detection duct is detached.
The device also comprises four first fastening bolts; four first blind screw holes 107 which are arranged in a rectangular shape are respectively formed in the upper surface of the vertical section of the base 1; four counter bores 211 which are arranged in a rectangular shape are respectively penetrated and arranged between the upper surface and the lower surface of the top seat 2, and the four counter bores 211 are in one-to-one butt joint with the four first blind screw holes 107; the four first fastening bolts penetrate through the four countersunk holes 211 in a one-to-one correspondence manner, and tail ends of the four first fastening bolts are screwed into the four first blind screw holes 107 in a one-to-one correspondence manner.
The device also comprises two positioning pins; the upper surface of the vertical section of the base 1 is respectively provided with two first positioning blind holes 108 which are arranged left and right; the lower surface of the top seat 2 is respectively provided with two second positioning blind holes 212 which are arranged left and right, and the two second positioning blind holes 212 are respectively in butt joint with the two first positioning blind holes 108; the lower parts of the two positioning pins are respectively penetrated into the two first positioning blind holes 108; the upper parts of the two positioning pins respectively penetrate into the two second positioning blind holes 212.
The four second fastening bolts are also included; four second blind screw holes 213 are respectively formed in the lower surface of the top seat 2; the two mounting holes 3f of the left electromagnetic directional valve 3 are respectively butted with two second blind screw holes 213; two mounting holes 4f of the right electromagnetic directional valve 4 are respectively butted with the other two second blind screw holes 213; wherein two second fastening bolts respectively penetrate through two mounting holes 3f of the left electromagnetic directional valve 3, and tail ends of the two second fastening bolts are respectively screwed into two second blind screw holes 213; the other two second fastening bolts respectively penetrate through the two mounting holes 4f of the right electromagnetic directional valve 4, and tail ends of the two second fastening bolts are respectively screwed into the other two second blind screw holes 213.
The middle part of the lower edge of the left surface of the horizontal section of the base 1 is provided with a left ear plate 5 in an extending way; the right part of the lower edge of the front surface of the base 1 is provided with a front ear plate 6 in an extending way; the right part of the lower edge of the rear surface of the base 1 is provided with a rear ear plate 7 in an extending manner.
The left electromagnetic directional valve 3 and the right electromagnetic directional valve 4 are both AirTac V21008 type electromagnetic directional valves.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (8)

1. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve, characterized by: the device comprises a base (1), a top seat (2), a left electromagnetic directional valve (3) and a right electromagnetic directional valve (4);
Wherein, the base (1) is of an L-shaped block structure; the top seat (2) is of a rectangular block structure; the base (1) and the top seat (2) are spliced together to form a U-shaped valve seat with an opening facing left;
the inside of the base (1) is provided with a first U-shaped air passage, a second U-shaped air passage, a first L-shaped air passage and a second L-shaped air passage respectively;
The head end opening (101 a) of the first U-shaped air passage penetrates through the upper surface of the horizontal section of the base (1), and the tail end opening (101 b) penetrates through the upper surface of the vertical section of the base (1); the head end opening (102 a) of the second U-shaped air passage penetrates through the upper surface of the horizontal section of the base (1), and the tail end opening (102 b) penetrates through the upper surface of the vertical section of the base (1); the head end opening (103 a) of the first L-shaped air passage penetrates through the upper surface of the horizontal section of the base (1), and the tail end opening (103 b) penetrates through the front surface of the horizontal section of the base (1); the head end opening (104 a) of the second L-shaped air passage penetrates through the upper surface of the horizontal section of the base (1), and the tail end opening (104 b) penetrates through the rear surface of the horizontal section of the base (1);
A third U-shaped air passage, a fourth U-shaped air passage, a third L-shaped air passage, a first straight air passage, a second straight air passage and a third straight air passage are respectively arranged in the footstock (2);
The head end opening (201 a) and the tail end opening (201 b) of the third U-shaped air passage are communicated with the lower surface of the top seat (2), and the tail end opening (201 b) of the third U-shaped air passage is communicated with the tail end opening (101 b) of the first U-shaped air passage in a sealing way; the head end opening (202 a) and the tail end opening (202 b) of the fourth U-shaped air passage are communicated with the lower surface of the top seat (2), and the tail end opening (202 b) of the fourth U-shaped air passage is communicated with the tail end opening (102 b) of the second U-shaped air passage in a sealing way; the head end opening (203 a) of the third L-shaped air passage penetrates through the lower surface of the top seat (2), and the tail end opening (203 b) penetrates through the rear surface of the top seat (2); the head end opening (204 a) of the first straight air passage penetrates through the lower surface of the top seat (2), and the tail end opening (204 b) penetrates through the upper surface of the top seat (2); the head end opening (205 a) of the second straight air passage penetrates through the lower surface of the top seat (2), and the tail end opening (205 b) penetrates through the upper surface of the top seat (2); the head end opening (206 a) of the third straight air passage penetrates through the lower surface of the top seat (2), and the tail end opening (206 b) penetrates through the upper surface of the top seat (2);
The left electromagnetic directional valve (3) and the right electromagnetic directional valve (4) are assembled in the opening of the U-shaped valve seat side by side, and the left electromagnetic directional valve (3) and the right electromagnetic directional valve (4) are two-position five-way electromagnetic directional valves;
The first valve port (3 a) of the left electromagnetic directional valve (3) is communicated with the head end opening (206 a) of the third straight air passage in a sealing way; the second valve port (3 b) of the left electromagnetic directional valve (3) is communicated with the head end opening (104 a) of the second L-shaped air passage in a sealing way; the third valve port (3 c) of the left electromagnetic directional valve (3) is communicated with the head end opening (202 a) of the fourth U-shaped air passage in a sealing way; the fourth valve port (3 d) of the left electromagnetic directional valve (3) is communicated with the head end opening (101 a) of the first U-shaped air passage in a sealing way; the fifth valve port (3 e) of the left electromagnetic directional valve (3) is communicated with the head end opening (204 a) of the first straight air passage in a sealing way;
The first valve port (4 a) of the right electromagnetic directional valve (4) is communicated with the head end opening (201 a) of the third U-shaped air passage in a sealing way; the second valve port (4 b) of the right electromagnetic directional valve (4) is communicated with the head end opening (102 a) of the second U-shaped air passage in a sealing way; the third valve port (4 c) of the right electromagnetic directional valve (4) is communicated with the head end opening (203 a) of the third L-shaped air passage in a sealing way; a fourth valve port (4 d) of the right electromagnetic directional valve (4) is communicated with a head end opening (103 a) of the first L-shaped air passage in a sealing way; the fifth valve port (4 e) of the right electromagnetic directional valve (4) is communicated with the head end opening (205 a) of the second straight air passage in a sealing way;
the device also comprises a double-acting cylinder; the double-acting cylinder is used for driving the ESD valve;
The specific working process is as follows: firstly, a worker controls the left electromagnetic directional valve and the right electromagnetic directional valve to be electrified through external control equipment, so that on one hand, a first valve port and a second valve port of the left electromagnetic directional valve are communicated, a fourth valve port and a fifth valve port of the left electromagnetic directional valve are communicated, and on the other hand, the first valve port and the second valve port of the right electromagnetic directional valve are communicated, and the fourth valve port and the fifth valve port of the right electromagnetic directional valve are communicated; at this time, air from an air source sequentially enters the left cylinder chamber of the double-acting cylinder through the third straight air passage, the first valve port of the left electromagnetic directional valve, the second valve port of the left electromagnetic directional valve and the second L-shaped air passage, so that the piston of the double-acting cylinder is pushed to move rightwards, and the ESD valve is driven to be opened; after the ESD valve is opened, the gas unit and equipment in the natural gas pressure regulating station can start to operate; in the operation process, when a gas unit suddenly breaks down or equipment in a natural gas pressure regulating station suddenly leaks, a worker controls the left electromagnetic directional valve and the right electromagnetic directional valve to lose electricity through external control equipment, so that on one hand, a first valve port and a fourth valve port of the left electromagnetic directional valve are communicated, a second valve port and a third valve port of the left electromagnetic directional valve are communicated, and on the other hand, the first valve port and the fourth valve port of the right electromagnetic directional valve are communicated, and the second valve port and the third valve port of the right electromagnetic directional valve are communicated; at this time, air from an air source sequentially enters a right cylinder chamber of the double-acting cylinder through a third straight air passage, a first valve port of the left electromagnetic directional valve, a fourth valve port of the left electromagnetic directional valve, a first U-shaped air passage, a third U-shaped air passage, a first valve port of the right electromagnetic directional valve, a fourth valve port of the right electromagnetic directional valve and a first L-shaped air passage, so that a piston of the double-acting cylinder is pushed to move leftwards, and the ESD valve is driven to be closed;
when the gas unit and equipment in the natural gas pressure regulating station normally operate, if the left electromagnetic directional valve suddenly fails, air from an air source sequentially enters a left cylinder chamber of the double-acting cylinder through a third straight air passage, a first valve port of the left electromagnetic directional valve, a fourth valve port of the left electromagnetic directional valve, a first U-shaped air passage, a third U-shaped air passage, a first valve port of the right electromagnetic directional valve, a second U-shaped air passage, a fourth U-shaped air passage, a third valve port of the left electromagnetic directional valve, a second valve port of the left electromagnetic directional valve and a second L-shaped air passage, so that a piston of the double-acting cylinder is kept motionless, and an ESD valve is kept open;
when the gas unit and equipment in the natural gas pressure regulating station normally operate, if the right electromagnetic directional valve suddenly fails, air from an air source sequentially enters the left cylinder chamber of the double-acting cylinder through the third straight air passage, the first valve port of the left electromagnetic directional valve, the second valve port of the left electromagnetic directional valve and the second L-shaped air passage, so that the piston of the double-acting cylinder is kept motionless, and the ESD valve is kept open.
2. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: the inside of the base (1) is also provided with a first straight detection pore canal and a second straight detection pore canal respectively; the head end opening of the first straight detection duct penetrates through the corner of the first U-shaped air passage, and the tail end opening (105 b) penetrates through the right surface of the base (1); the head end opening of the second straight detection duct penetrates through the corner of the second U-shaped air passage, and the tail end opening (106 b) penetrates through the right surface of the base (1).
3. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: the inside of the top seat (2) is also provided with a third straight detection pore canal, a fourth straight detection pore canal, a fifth straight detection pore canal and a sixth straight detection pore canal respectively; the head end opening of the third straight detection duct penetrates through the corner of the third U-shaped air passage, and the tail end opening (207 b) penetrates through the front surface of the top seat (2); the head end opening of the fourth straight detection pore canal penetrates through the corner of the third U-shaped air passage, and the tail end opening (208 b) penetrates through the right surface of the top seat (2); the head end opening of the fifth straight detection pore canal penetrates through the corner of the fourth U-shaped air passage, and the tail end opening (209 b) penetrates through the right surface of the top seat (2); the head end opening of the sixth straight detection duct penetrates through the corner of the fourth U-shaped air passage, and the tail end opening (210 b) penetrates through the rear surface of the top seat (2).
4. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: the device also comprises four first fastening bolts; four first blind screw holes (107) which are arranged in a rectangular shape are respectively formed in the upper surface of the vertical section of the base (1); four counter sunk holes (211) which are arranged in a rectangular shape are respectively penetrated and arranged between the upper surface and the lower surface of the top seat (2), and the four counter sunk holes (211) are in one-to-one butt joint with the four first blind screw holes (107); the four first fastening bolts penetrate through the four countersunk holes (211) in a one-to-one correspondence mode, and tail ends of the four first fastening bolts are screwed into the four first blind screw holes (107) in a one-to-one correspondence mode.
5. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: the device also comprises two positioning pins; the upper surface of the vertical section of the base (1) is respectively provided with two first positioning blind holes (108) which are arranged left and right; the lower surface of the top seat (2) is respectively provided with two second positioning blind holes (212) which are arranged left and right, and the two second positioning blind holes (212) are respectively in butt joint with the two first positioning blind holes (108); the lower parts of the two positioning pins are respectively penetrated into the two first positioning blind holes (108); the upper parts of the two locating pins are respectively penetrated in the two second locating blind holes (212).
6. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: the four second fastening bolts are also included; four second blind screw holes (213) are respectively formed in the lower surface of the top seat (2); two mounting holes (3 f) of the left electromagnetic directional valve (3) are respectively in butt joint with two second blind screw holes (213); two mounting holes (4 f) of the right electromagnetic directional valve (4) are respectively in butt joint with two other second blind screw holes (213); wherein two second fastening bolts respectively penetrate through two mounting holes (3 f) of the left electromagnetic directional valve (3), and tail ends of the two second fastening bolts are respectively screwed into two second blind screw holes (213); the other two second fastening bolts respectively penetrate through the two mounting holes (4 f) of the right electromagnetic directional valve (4), and tail ends of the two second fastening bolts are respectively screwed into the other two second blind screw holes (213).
7. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: a left ear plate (5) is arranged in the middle of the lower edge of the left surface of the horizontal section of the base (1) in an extending way; the right part of the lower edge of the front surface of the base (1) is provided with a front lug plate (6) in an extending way; the right part of the lower edge of the rear surface of the base (1) is provided with a rear lug plate (7) in an extending way.
8. A high reliability integrated solenoid valve for controlling a fuel cell electric plant ESD valve according to claim 1 wherein: the left electromagnetic directional valve (3) and the right electromagnetic directional valve (4) are both AirTac V21008 type electromagnetic directional valves.
CN202110909902.7A 2021-08-09 2021-08-09 High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant Active CN113669496B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110909902.7A CN113669496B (en) 2021-08-09 2021-08-09 High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110909902.7A CN113669496B (en) 2021-08-09 2021-08-09 High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant

Publications (2)

Publication Number Publication Date
CN113669496A CN113669496A (en) 2021-11-19
CN113669496B true CN113669496B (en) 2024-04-19

Family

ID=78541946

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110909902.7A Active CN113669496B (en) 2021-08-09 2021-08-09 High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant

Country Status (1)

Country Link
CN (1) CN113669496B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289701A (en) * 1963-03-04 1966-12-06 Booth Stanley Henshaw Fluid controlled safety devices for selector valves
DE2005287A1 (en) * 1969-02-05 1970-08-27 Compagnie Parisienne d Outillage a Control selection device for operating a closure device for a pressurized power fluid
CN1155638A (en) * 1995-10-02 1997-07-30 速睦喜股份有限公司 Manifold type electromagnetic valve
JPH10131711A (en) * 1996-10-29 1998-05-19 Toshiba Corp Emergency device for turbine
CN2468185Y (en) * 2000-05-26 2001-12-26 富士康(昆山)电脑接插件有限公司 Support with metal shielding cover
CN103016785A (en) * 2012-11-29 2013-04-03 宁波索诺工业自控设备有限公司 Symmetric two-position five-way valve
JP2016156426A (en) * 2015-02-24 2016-09-01 川崎重工業株式会社 Unload valve and hydraulic driving system of hydraulic shovel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289701A (en) * 1963-03-04 1966-12-06 Booth Stanley Henshaw Fluid controlled safety devices for selector valves
DE2005287A1 (en) * 1969-02-05 1970-08-27 Compagnie Parisienne d Outillage a Control selection device for operating a closure device for a pressurized power fluid
CN1155638A (en) * 1995-10-02 1997-07-30 速睦喜股份有限公司 Manifold type electromagnetic valve
JPH10131711A (en) * 1996-10-29 1998-05-19 Toshiba Corp Emergency device for turbine
CN2468185Y (en) * 2000-05-26 2001-12-26 富士康(昆山)电脑接插件有限公司 Support with metal shielding cover
CN103016785A (en) * 2012-11-29 2013-04-03 宁波索诺工业自控设备有限公司 Symmetric two-position five-way valve
JP2016156426A (en) * 2015-02-24 2016-09-01 川崎重工業株式会社 Unload valve and hydraulic driving system of hydraulic shovel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
燃气电厂天然气调压站ESD阀可靠性分析及对策;王小江;;仪器仪表用户;20160208(02);114+118-120 *

Also Published As

Publication number Publication date
CN113669496A (en) 2021-11-19

Similar Documents

Publication Publication Date Title
CN101539218B (en) Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism
JPH06341409A (en) Pilot-operated type servo valve
CN113669496B (en) High-reliability integrated electromagnetic valve for controlling ESD valve of fuel cell electric power plant
WO2016114556A1 (en) Control system for construction machine
CN105134684B (en) Logic oil duct control system with electromagnetic switch valves and failure autodiagnosis method
CN102620025B (en) For the double-action converting unit of valve positioner
CN103148259A (en) Furnace top bleeding valve with safety protection function
CN112254010A (en) Energy-saving intelligent automatic air supplement system and method for ash conveying pipeline
CN112032359A (en) Switching device for outlet channel of sealing fan
CN112032398A (en) Mechanical automatic control device of stop valve
CN204512485U (en) Pneumatic vacuum push-pull valve
WO2023035344A1 (en) Jump pressure limiting mechanism and air brake system
CN110552924B (en) Hydraulic operating mechanism, control valve and main valve of control valve
KR20050018911A (en) Control valve system for emergency cutoff
CN214660307U (en) Full-servo safety interlocking air door for mine
CN112857033A (en) Roller kiln replacement chamber and air exchange system
CN201159309Y (en) Two-position three-way air control valve
CN211525580U (en) Pneumatic valve
CN201339751Y (en) Anti-malfunction pilot pneumatic valve
GB2451790A (en) Hydraulic valves with integral seals
CN212005742U (en) Turnover type air bag sealing isolation door
CN219036293U (en) Air source box
CN202497491U (en) Automatic security seal guaranteeing device of sterilizer door
CN217634174U (en) Pneumatic valve control loop capable of being opened and closed at low speed
CN217104979U (en) A novel inflatable top sealing device for steel dam floodgate

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant