CN118998342B - Pneumatic poppet valve interlocking seal structure - Google Patents
Pneumatic poppet valve interlocking seal structure Download PDFInfo
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- CN118998342B CN118998342B CN202411497705.9A CN202411497705A CN118998342B CN 118998342 B CN118998342 B CN 118998342B CN 202411497705 A CN202411497705 A CN 202411497705A CN 118998342 B CN118998342 B CN 118998342B
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- 238000007789 sealing Methods 0.000 claims abstract description 69
- 238000005192 partition Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 101
- 238000003860 storage Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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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
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a pneumatic poppet valve interlocking sealing structure, which belongs to the technical field of poppet valves and comprises a valve body, wherein two groups of poppet valve mechanisms are arranged in the valve body, a partition plate is arranged in the valve body, and a second communication port and a first communication port which are arranged corresponding to the poppet valves are formed in the surface of the valve body. According to the invention, when the valve plate is attached to the partition plate, two groups of annular sealing soft seals are formed through the soft rings arranged on the piston ring and the partition plate, so that the filling effect on gaps is improved, the poor sealing performance caused by the reduced deformation attaching degree of the valve plate and the partition plate is reduced, the sealing performance is ensured, meanwhile, the pressure gas can be filled between the two groups of soft rings when the valve plate moves downwards in the sealing process, the pressure difference between the pressure reduction of the two groups of soft rings and the external sealing gas is improved, the sealing effect is improved, and an automatic alarm can be sent out by triggering a tact switch through the movement of the lower piston when the soft rings leak, so that the damage of leakage is timely found and reduced.
Description
Technical Field
The invention relates to the technical field of poppet valves, in particular to a pneumatic poppet valve interlocking sealing structure.
Background
The pneumatic poppet valve is used for driving the valve body to seal or pass through by taking compressed air as a power source, has the advantages of quick action, quick response speed and simple and compact structure, can realize automatic control, and is widely applied to gas circulation and transportation in industrial production and manufacture.
In the prior art, most pneumatic lifting valves in the industrial field are used for guaranteeing service life and simplifying components, steel is generally adopted for hard sealing, bonding pressurization is carried out between a valve plate and a sealing flange to realize sealing, but in the industrial production process, generated tail gas has residual temperature, the temperature of the tail gas related to the production step of hot processing is higher, the hot tail gas easily causes deformation and expansion of the valve plate and the flange sealing, the bonding performance is poor, and the sealing performance is influenced.
How to develop a pneumatic poppet interlocking seal structure to improve these problems is a urgent problem for those skilled in the art.
Disclosure of Invention
In order to overcome the defects, the invention provides a pneumatic poppet valve interlocking sealing structure, which aims to solve the problems of the prior art.
The invention is realized in the following way:
The invention provides a pneumatic poppet valve interlocking seal structure, which comprises a valve body, wherein two groups of poppet valve mechanisms are arranged in the valve body, a partition plate is arranged in the valve body, a second communication port and a first communication port which are arranged corresponding to the poppet valves are formed in the surface of the valve body, the poppet valve mechanisms comprise cylinders arranged at the tops of the valve bodies, telescopic shafts of the cylinders are connected with connecting rods, the bottoms of the connecting rods are connected with valve plates, valve ports corresponding to the valve plates are formed in the partition plate, and a soft sealing mechanism is arranged between the valve plates and the partition plate;
the soft sealing mechanism comprises an airtight groove formed in a partition plate, a piston ring is sleeved in the airtight groove, a soft ring is arranged at the top of the piston ring and the top of the partition plate, an air injection port is formed in the valve plate, the bottom of the air injection port is arranged between the two groups of soft rings, an airtight cylinder is arranged in the valve body, a piston block is fixedly arranged on the side wall of a connecting rod, an upper piston is arranged at the top of the piston block, a lower piston is arranged at the bottom of the piston block, a first spring is connected between the piston block and the upper piston, a second spring is connected between the piston block and the lower piston, the piston block, the upper piston and the lower piston are movably sleeved on the inner side wall of the airtight cylinder, the upper piston and the lower piston are slidably connected to the outer side wall of the connecting rod, an airtight cavity is formed in the outer side wall of the airtight cylinder, a piston block is arranged in the airtight cavity, a communication groove is formed between the airtight cylinder and the airtight cavity, an air inlet pipe is formed in the side wall of the airtight cavity, an air inlet pipe is formed between the air inlet pipe and the airtight cylinder, a light touch switch is arranged at the inner bottom of the airtight cylinder, and an air blowing mechanism and an anti-deformation mechanism are also arranged in the valve body.
Preferably, the top of the inner side of the airtight cavity is provided with an air hole.
Preferably, the air blowing mechanism comprises an air channel pipeline arranged in the piston ring, the top of the air channel pipeline is rotationally connected with an air nozzle through a rotating shaft, the outer side wall of the air nozzle is provided with a magnetic ring, the top of the partition plate is provided with a first magnetic block which is designed corresponding to the magnetic poles of the magnetic ring, and a second magnetic block which is designed corresponding to the magnetic poles of the magnetic ring is arranged above the air nozzle in the piston ring.
Preferably, one end of the air nozzle, which is close to the air channel, is designed horizontally, and the other end of the air nozzle is designed obliquely.
Preferably, the deformation-resistant mechanism comprises a first liquid path groove and a second liquid path groove which are formed in the valve plate, a liquid storage cavity is formed in the top of the valve body, a first liquid pipe is communicated above the inner cavities of the first liquid path groove and the airtight cylinder, a fourth liquid pipe is communicated between the second liquid path groove and the liquid storage cavity, a third liquid pipe is communicated above the inner cavities of the liquid storage cavity and the airtight cylinder, a sealing groove is formed in the valve plate, the sealing groove is communicated with the first liquid path groove and the second liquid path groove, a valve block is slidably connected in the sealing groove, a horizontal groove which is communicated with the first liquid path groove and the second liquid path groove is formed in the valve block, a spiral air pipe is arranged in the valve plate, a plurality of circles of spiral air pipes are arranged around the axis of the valve plate, and a group of channels are arranged on the spiral air pipes and are communicated with the bottom of the sealing groove.
Preferably, the first liquid path groove and the second liquid path groove are arranged close to the contact position of the valve plate and the valve port.
Preferably, the first liquid pipe and the third liquid pipe are internally provided with one-way valves.
In summary, the beneficial effects of the invention are as follows:
1. When valve plate and baffle subside, form two sets of annular sealed soft sealings through the soft ring that sets up on piston ring and baffle, promote the filling effect to the gap, reduce valve plate and baffle and warp the leakproofness that the laminating degree reduces and lead to and worsen, guarantee the leakproofness, can fill pressure gas between two sets of soft rings when sealed in-process valve plate moves down simultaneously, promote the pressure between two sets of soft rings and reduce the pressure difference with outside seal gas, promote sealed effect, and can trigger the automatic alarm of dabbing the switch through the removal of lower piston when soft ring appears leaking, in time discover and reduce the harm of leaking.
2. In the valve plate downward moving and valve port sealing process, gas in the airtight groove is compressed through the piston ring and sprayed out through the air nozzle, and meanwhile, the magnetic ring is matched with the magnetic block II and the magnetic block I in a magnetic way, so that the air nozzle at the first half section of the sealing process blows upwards to clean the bottom of the valve plate, the baffle plate which is gradually close to the valve plate is blown downwards after the second half section of the sealing process overturns downwards, the efficient blowing of the position adjustment before each sealing is realized, the impurities such as dust particles attached to the surfaces of the valve plate and the baffle plate are removed, the deposition of the impurity particles is reduced, the attaching effect of the valve plate and the baffle plate is ensured, and the sealing property between the valve plate and the baffle plate is improved.
3. In the valve plate downward moving sealing process, the first spring is subjected to force accumulation through the blocking of the valve block, after the temperature of the blocked gas rises, the valve block is pushed by the combined action of the gas expansion forces generated by heating of a plurality of groups of spiral air pipes, so that after the liquid channel groove I and the liquid channel groove II are communicated, cooling medium finally flows into the airtight cylinder from the liquid storage cavity, the liquid channel groove II and the liquid channel groove I, so that the heat of a part of the valve plate is taken away, the area, close to the valve plate, of the valve plate is cooled, automatic cooling is realized when the temperature rises, deformation between the valve plate and the partition plate is reduced, the laminating performance is ensured, and sealing deterioration caused by deformation expansion of the device due to temperature rise of sealing gas is reduced, and further the sealing effect is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an overall schematic view of a valve body according to an embodiment of the present invention.
Fig. 2 is a schematic view of the interior of a valve body according to an embodiment of the present invention.
Fig. 3 is an overall schematic diagram of a poppet valve structure provided by an embodiment of the present invention.
Fig. 4 is a schematic view of the inside of an airtight cartridge provided by an embodiment of the present invention.
Fig. 5 is a schematic view of the interior of a piston ring according to an embodiment of the present invention.
Fig. 6 is an overall schematic view of an air nozzle provided in an embodiment of the present invention.
Fig. 7 is a schematic view of the interior of a valve plate according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a sealing of a poppet valve mechanism provided by an embodiment of the present invention.
Fig. 9 is a schematic view of the inside of the airtight cylinder at the time of sealing provided by the embodiment of the present invention.
Fig. 10 is an enlarged schematic view at a of fig. 8 according to an embodiment of the present invention.
Legend description:
100. Valve body 101, communication port one, 102, communication port two, 103, baffle plate 104, valve port 105, airtight slot 106, piston ring 107, magnet one, 108, gas channel pipeline 109, gas nozzle 110, magnetic ring 111, soft ring 112, magnet two, 200, cylinder 201, valve plate 202, connecting rod 203, airtight cylinder 204, liquid storage cavity 205, piston block 206, upper piston 207, spring one, 208, lower piston 209, spring two, 210, tact switch 211, airtight cavity 212, communication slot 213, plunger block 214, gas outlet 215, gas injection port 216, spiral pipe 217, liquid channel slot one, 218, liquid channel slot two, 219, sealing slot 220, valve block 300, gas inlet pipe 301, liquid pipe one, 303, liquid pipe three, 304 and liquid pipe four.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Referring to fig. 1-10, the invention provides a pneumatic poppet interlocking sealing structure, which comprises a valve body 100, wherein two groups of poppet mechanisms are arranged in the valve body 100, a baffle 103 is arranged in the valve body 100, the baffle 103 is in a T-shaped design and divides the interior of the valve body 100 into three groups of cavities, wherein the two lower groups of cavities are respectively communicated with two groups of communication ports I101, the one upper group of cavities are communicated with two groups of communication ports II 102, the surface of the valve body 100 is provided with a communication port II 102 and a communication port I101 which are correspondingly arranged with the poppet, the poppet mechanisms comprise a cylinder 200 arranged at the top of the valve body 100, a telescopic shaft of the cylinder 200 is connected with a connecting rod 202, the bottom of the connecting rod 202 is connected with a valve plate 201, the baffle 103 is provided with a valve port 104 corresponding to the valve plate 201, and a soft sealing mechanism is arranged between the valve plate 201 and the baffle 103;
the soft sealing mechanism comprises an airtight groove 105 formed in a partition plate 103, a piston ring 106 is sleeved in the airtight groove 105, a soft ring 111 is arranged at the top of the piston ring 106 and the top of the partition plate 103, an air injection port 215 is formed in the valve plate 201, the bottom of the air injection port 215 is formed between the two groups of soft rings 111, an airtight cylinder 203 is arranged in the valve body 100, a piston block 205 is fixedly arranged on the side wall of the connecting rod 202, an upper piston 206 is arranged at the top of the piston block 205, a lower piston 208 is arranged at the bottom of the piston block 205, a first spring 207 is connected between the piston block 205 and the upper piston 206, a second spring 209 is connected between the piston block 205 and the lower piston 208, the piston block 205, the upper piston 206 and the lower piston 208 are movably sleeved on the inner side wall of the airtight cylinder 203, the upper piston 206 and the lower piston 208 are slidably connected to the outer side wall of the connecting rod 202, an airtight cavity 211 is formed in the outer side wall of the airtight cylinder 203, a plunger block 213 is formed in the airtight cavity 211, a communication groove 212 is formed between the airtight cylinder 203 and the airtight cylinder 211, an exhaust port 214 is formed in the side wall of the airtight cylinder 211, an air inlet 300 is communicated with the air inlet pipe 300, and the bottom of the airtight cylinder 203 is further provided with an airtight cylinder 100.
Further, the top of the inner side of the airtight cavity 211 is provided with an air hole, and it should be noted that, by the design of the air hole, a certain delay exists when the plunger block 213 moves upwards to compress and remove the air in the airtight cavity 211, so as to avoid the air from leaking out of the air injection hole 215 in advance.
Referring to fig. 3-6, the air blowing mechanism comprises an air channel 108 arranged in the piston ring 106, an air nozzle 109 is rotatably connected to the top of the air channel 108 through a rotating shaft, a magnetic ring 110 is arranged on the outer side wall of the air nozzle 109, a first magnetic block 107 which is designed corresponding to the magnetic pole of the magnetic ring 110 is arranged on the top of the partition plate 103, and a second magnetic block 112 which is designed corresponding to the magnetic pole of the magnetic ring 110 is arranged above the air nozzle 109 in the piston ring 106.
Further, one end of the air nozzle 109, which is close to the air channel 108, is designed horizontally, the other end of the air nozzle 109 is designed obliquely, specifically, the air blowing direction of the air nozzle 109 can be controlled by the design, so that the air nozzle 109 can blow towards the valve plate 201 when being close to the valve plate 201, can turn to blow towards the partition plate 103 when being close to the partition plate 103, always faces towards the target direction, and the concentration and blowing effect of blowing are improved.
Referring to fig. 3-10, the anti-deformation mechanism comprises a first liquid channel groove 217 and a second liquid channel groove 218 which are formed in the valve plate 201, a liquid storage cavity 204 is formed in the top of the valve body 100, a first liquid channel 301 is communicated above the first liquid channel groove 217 and the inner cavity of the airtight barrel 203, a fourth liquid channel 304 is communicated between the second liquid channel groove 218 and the liquid storage cavity 204, a third liquid channel 303 is communicated above the inner cavity of the liquid storage cavity 204 and the airtight barrel 203, a sealing groove 219 is formed in the valve plate 201, the sealing groove 219 is communicated with the first liquid channel groove 217 and the second liquid channel groove 218, a valve block 220 is connected in a sliding manner in the sealing groove 219, a horizontal groove which is communicated with the first liquid channel groove 217 and the second liquid channel groove 218 is formed in the valve plate 201, the valve block 220 is formed in the valve block 220, the first liquid channel 217 is communicated with the second liquid channel 218, the first liquid channel 217 is required to be influenced by magnetic force of the magnetic block 107 when the valve plate 201 is close to the partition plate 103, the first liquid channel 217 is communicated with the second liquid channel 218, the first liquid channel 217 is not communicated with the second liquid channel 217 is not communicated with the liquid channel 218 in the first liquid channel 218, the first liquid channel 217 is not communicated with the second liquid channel 216 is influenced by magnetic force of the magnetic block 216, and the second liquid channel 216 is communicated with the second channel 216, the liquid channel 216 is different magnetic channel 216 is arranged in the liquid channel is different magnetic channel 216 is different magnetic channel.
Further, the first liquid channel slot 217 and the second liquid channel slot 218 are arranged close to the contact position between the valve plate 201 and the valve port 104, specifically, the sealing contact position can be cooled preferentially, so that the cooling sealing effect is ensured.
The first liquid pipe 301 and the third liquid pipe 303 are provided with check valves inside.
The working flow of the pneumatic poppet interlocking sealing structure is as follows:
When two groups of poppet valve mechanisms are communicated, the cylinder 200 of the two groups of poppet valve mechanisms is simultaneously started to drive the connecting rod 202 to lift the valve plate 201, so that the valve plate 201 is separated from the blocking of the valve port 104, the first communication port 101 is communicated with the second communication port 102 through the valve port 104, the T-shaped design of the partition plate 103 further enables air flow to be communicated with the first communication port 101 corresponding to the first communication port through the valve port 104 of the other group of poppet valve mechanisms above the partition plate 103, the two groups of communication ports 101 are communicated through the two groups of poppet valve mechanisms, the leakage risk of a single poppet valve mechanism can be avoided through the linkage design of the two groups of poppet valve mechanisms, the sealing stability is improved, meanwhile, one group of poppet valves can be opened and the other group of poppet valves can be closed, air can be discharged through other valves arranged above the valve body 100, and the operation such as exhaust, cleaning and the like can be performed on the pipeline, and the whole practicability of the valve body 100 is improved.
When the cylinder 200 drives the valve plate 201 to move downwards to seal the valve port 104 through the connecting rod 202, the valve plate 201 is firstly contacted with the piston ring 106 to further drive the piston ring 106 to move downwards, when the piston ring 106 moves downwards, gas in the airtight groove 105 is compressed to enter the air nozzle 109 through the one-way valve in the air path pipeline 108, the magnetic ring 110 on the side wall of the air nozzle 109 can keep the end of the air nozzle 109 in an upward state through magnetic force fit with the magnetic block II 112 when the magnetic ring 110 is not influenced or is influenced by less external force, the gas is sprayed upwards through the air nozzle 109 to blow and clean the contact part of the bottom of the valve plate 201, which is about to be contacted with the partition plate 103, the piston ring 106 is pushed by the valve plate 201 to move downwards, when the piston ring 106 moves downwards to be close to the magnetic block I107, because the magnetic force of the magnetic block I107 is larger than that of the magnetic block II 112, the magnetic force of the magnetic block II 112 can be designed through the fit with the magnetic poles of the magnetic ring 110, pushing the magnetic ring 110 to overcome the magnetic force of the second magnetic block 112 and turn over to enable the tail end of the air nozzle 109 to face downwards, at the moment, the blowing direction of the tail end of the air nozzle 109 is changed to face downwards, the part, which is to be contacted with the valve plate 201, of the partition plate 103 is blown and cleaned, in the process of plugging the valve plate 201 downwards moving towards the valve port 104, gas inside the airtight groove 105 is compressed through the air nozzle 109 through the piston ring 106, meanwhile, the air nozzle 109 is blown upwards to clean the bottom of the valve plate 201 through the magnetic force cooperation between the magnetic ring 110 and the second magnetic block 112 and the first magnetic block 107, then the partition plate 103 is blown and cleaned downwards in a turning manner, the dust particles and other impurities on the surfaces of the valve plate 201 and the partition plate 103 are automatically blown and removed before each sealing is realized, the deposition of the impurity particles is reduced, the attaching effect of the valve plate 201 and the partition plate 103 is ensured, the sealing performance between the valve plate 201 and the partition plate 103 is improved, after the valve plate 201 is lifted, the piston ring 106 is reset under the spring force provided inside the airtight tank 105, and simultaneously, clean gas is drawn from the outside into the airtight tank 105 through a group of pipelines with check valves extending to the outside of the valve body 100, so that the subsequent circulating operation of the device is realized.
The piston ring 106 is integrally designed in a frame shape, and the side wall of the piston ring 106 is designed with a communication port, so that the circulation of gas can be ensured.
In the process of moving the valve plate 201 downwards to contact and attach with the partition plate 103, the connecting rod 202 moves downwards to drive the piston block 205 to move downwards, the lower piston 208 is further driven to move downwards to compress the gas below the inner part of the airtight barrel 203, meanwhile, the second spring 209 is compressed, the pressure at the bottom of the inner side of the airtight barrel 203 is further increased, the air pressure is transferred to the airtight cavity 211 through the communication groove 212, the piston block 213 is pushed to move upwards, the gas above the inner side of the airtight cavity 211 is slowly discharged through the air hole above the inner side of the airtight cavity 211 in the process of moving the piston block 213 upwards until the piston block 213 moves upwards to expose the air outlet 214, the pressure gas inside the airtight barrel 203 enters the gas injection port 215 through the communication groove 212, the one-way valve inside the air outlet 214 and the air inlet pipe 300, and when the valve plate 201 and the partition plate 103 are attached with reference to fig. 9 and 10, two groups of annular sealing soft seals are formed through the soft rings 111 arranged on the piston rings 106 and the partition plate 103, the filling effect on gaps is improved, the sealing performance is reduced due to the fact that the deformation fit degree of the valve plate 201 and the partition plate 103 is reduced, the sealing performance is guaranteed, meanwhile, pressure gas can be filled between the two groups of soft rings 111 when the valve plate 201 moves downwards in the sealing process, the pressure difference between the pressure reduction of the two groups of soft rings 111 and external sealing gas is improved, the sealing effect is improved, when the soft rings 111 leak, firstly, clean gas with larger pressure enters through the gas injection port 215 leaks, the leakage hazard is effectively reduced, when the gas inside the gas injection port 215 is slowly discharged due to leakage, the gas below the inner side of the airtight cylinder 203 is reduced, the pressure born by the lower piston 208 is reduced, the piston 208 moves downwards to contact with the tact switch 210 under the elastic force of the spring two springs 209, thereby trigger the tact switch 210 and send out leakage alarm signal to the staff through the alarm device that the outside set up, can realize automatic alarm to leaking, effectively in time discover leaking, reduce leakage harm.
It should be noted that, when the piston block 205 is reset, the airtight cylinder 203 may slowly suck external air into the airtight cylinder 203 through the one-way valve disposed on the sidewall of the airtight cylinder 203, and meanwhile, drive the piston block 213 to gradually reset, so as to facilitate the cyclic operation of the device.
In the process of moving down the valve plate 201, the piston block 205 moves down to drive the upper piston 206 to move down, but because the magnetic force of the magnetic block 107 to the valve block 220 attracts the valve block 220 to move down to block the channel between the first liquid channel 217 and the second liquid channel 218, the upper piston 206 is difficult to move down to suck the liquid in the first liquid channel 217 into the airtight cylinder 203, because the upper piston 206 is limited in displacement, the piston block 205 moves down to drive the spring block 207 to stretch to store force, after the valve plate 201 is attached to the partition plate 103 to seal the valve port 104, if the sealing is that the temperature of the sealing part between the valve plate 201 and the valve port 104 is increased due to the sealing tail gas, the valve plate 201 is heated integrally, further, when the temperature of the gas is too high, the gas in the plurality of spiral gas pipes 216 arranged in the valve plate 201 is heated to expand and is converged to the gas pushing force uniformly towards the inside the sealing groove 219, the valve block 220 is pushed to move up, the first liquid channel slot 217 and the second liquid channel slot 218 are communicated through the channel in the valve block 220, at this time, the upper piston 206 is driven to move downwards by the elasticity of the first spring 207, the cooling medium in the first liquid channel slot 217 is sucked into the airtight cylinder 203 through the first liquid pipe 301 provided with the one-way valve, meanwhile, the medium in the second liquid channel slot 218 flows into the first liquid channel slot 217 through the valve block 220, the cooling medium in the liquid storage cavity 204 is supplemented into the second liquid channel slot 218 through the fourth liquid pipe 304, the cooling medium flows from the liquid storage cavity 204 to the second liquid channel slot 218 to further flow through the first liquid channel slot 217 and finally enter the airtight cylinder 203, part of heat in the valve plate 201 can be taken away when the cooling medium flows, the area adjacent to the valve plate 201 and the valve port 104 is cooled, thereby maintaining the physical property of the valve plate 201, reducing the influence of deformation expansion caused by temperature rise and the like, ensuring the fitting property and sealing effect between the valve plate 201 and the partition plate 103, thereby reducing the influence of temperature rise on the tightness after the valve plate 201 is sealed, when the valve plate 201 is lifted and reset, the piston block 205 drives the upper piston 206 to move upwards to pump the cooling medium in the airtight cylinder 203 into the liquid storage cavity 204 through the liquid pipe III 303 provided with the one-way valve to form liquid path backflow.
The cooling medium filled and flowing in the liquid storage chamber 204, the first liquid channel groove 217 and the second liquid channel groove 218 is preferably a cooling oil medium with good corrosion resistance, cooling effect and circulation.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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| KR101352805B1 (en) * | 2013-10-14 | 2014-01-17 | 코리아테크 주식회사 | Reciprocating compressor for a refrigerator truck and bus with intergrated exhaust valve which is available control compression ratio |
| CN115704476A (en) * | 2021-08-12 | 2023-02-17 | 上海睿筑环境科技有限公司 | A gas-sealed poppet valve |
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| JP6938828B2 (en) * | 2018-12-28 | 2021-09-22 | Smc株式会社 | Low noise gate valve |
| KR102497210B1 (en) * | 2021-05-14 | 2023-02-07 | 주식회사 세원기계 | Main valve for tank lorry |
| CN113819267B (en) * | 2021-11-17 | 2022-02-08 | 常州恒立气动科技有限公司 | Valve rod assembly, main valve structure and pressure relief type two-position five-way electromagnetic reversing valve |
| KR20240079569A (en) * | 2022-11-29 | 2024-06-05 | 김성동 | Pressure control valve with improved pressure control precision |
| CN219140492U (en) * | 2022-12-28 | 2023-06-06 | 济南华信流体控制有限公司 | Pneumatic quick-mounting valve fixture |
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| KR101352805B1 (en) * | 2013-10-14 | 2014-01-17 | 코리아테크 주식회사 | Reciprocating compressor for a refrigerator truck and bus with intergrated exhaust valve which is available control compression ratio |
| CN115704476A (en) * | 2021-08-12 | 2023-02-17 | 上海睿筑环境科技有限公司 | A gas-sealed poppet valve |
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