CN106499869B - A kind of pressure regulator and fuel gas transmission equipment - Google Patents
A kind of pressure regulator and fuel gas transmission equipment Download PDFInfo
- Publication number
- CN106499869B CN106499869B CN201611215236.2A CN201611215236A CN106499869B CN 106499869 B CN106499869 B CN 106499869B CN 201611215236 A CN201611215236 A CN 201611215236A CN 106499869 B CN106499869 B CN 106499869B
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- Prior art keywords
- chamber
- flexible sheet
- surge
- thermal expansion
- transmission mechanism
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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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
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
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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
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1268—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like with a plurality of the diaphragms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The present invention provides a kind of pressure regulator and fuel gas transmission equipment, it is related to gas-fired equipment field, including shell, surge-chamber, the first flexible sheet and the first transmission mechanism, first flexible sheet and shell surround the thermal expansion room for being used to place thermal expansion agent of sealing, surge-chamber and thermal expansion room are located at the opposite sides of the first flexible sheet, first transmission mechanism is located at surge-chamber and connect with the first flexible sheet, and the first transmission mechanism and the transmission of cock body component cooperate.The emergencies such as fire are occurring for the pressure regulator, the heated expansion rapidly of the indoor thermal expansion agent of thermal expansion on its interior, the first flexible sheet is caused to squeeze into surge-chamber, drive the first transmission mechanism, to drive cock body component for inlet close to cut off fuel gas path, the sprawling of the gas leakage aggravation intensity of a fire is prevented.After fire dangerous situation exclusion, thermal expansion agent cooling meat restores state when normal use, realizes the recycling of equipment, avoids the wasting of resources.
Description
Technical field
The present invention relates to gas-fired equipment fields, in particular to a kind of pressure regulator and fuel gas transmission equipment.
Background technique
With being showing improvement or progress day by day for society, natural gas has been widely used for cooking stove in daily life, water heater, radiator etc.
In equipment, people have been commonly as a kind of more clean energy and have been received.For domestic developed regions, frame
If pipeline natural gas is most important gas mode.And for some less flourishing areas, due to setting up pipeline
Cost it is excessively high, using steel cylinder store liquefied natural gas be then a kind of good alternative.
For the steel cylinder equipped with liquefied gas, internal pressure is big, and needing could be by user security by pressure reducing valve
It uses.Due to storing the largely natural gas through compressing and liquefying in steel cylinder, and when steel cylinder is typically placed at kitchen this kind
Often there is open fire where, these steel cylinders itself are that there are some security risks.Once fire occurs, and fuel gas path
It cannot cut off in time, the combustion gas leaked out by steel cylinder can be further exacerbated by fire spread or even explode, to the control of fire
It brings a great deal of trouble.
Summary of the invention
The purpose of the present invention is to provide a kind of pressure regulators, and fuel gas path can be cut off rapidly when heated, resistance
Only combustion gas leaks, and can cope with the emergency cases such as fire in time.And the pressure regulator is after the cooling period, can restore as before,
Realize recycling.
Another object of the present invention is to provide a kind of fuel gas transmission equipment, and it includes above-mentioned pressure regulator, the devices
It is encountering when the temperature is excessively high, fuel gas path can be cut off rapidly by pressure regulator, prevents combustion gas from leaking, allows user can be more
Safety uses combustion gas.
The embodiment of the present invention is achieved in that
A kind of pressure regulator, including shell, enclosure interior are provided with surge-chamber and regulator, and shell is provided with air inlet
Mouth and gas outlet, surge-chamber are connected to air inlet pipe and an air outlet pipe respectively by air inlet and air outlet, and setting is useful in surge-chamber
In the cock body component of control air inlet opening and closing, cock body component and regulator are sequentially connected, and pressure regulator further includes the first bullet
Property diaphragm and the first transmission mechanism, the first flexible sheet and shell surround sealing for placing the thermal expansion room for thermally expanding agent,
Surge-chamber and thermal expansion room are located at the opposite sides of the first flexible sheet, and the first transmission mechanism is located at surge-chamber and with first
Flexible sheet connection, the first transmission mechanism and the transmission of cock body component cooperate, and the first transmission mechanism is when thermally expanding room expanded by heating
Drive cock body component by inlet close.
Further, in the other preferred embodiments of the present invention, regulator includes the second flexible sheet and the second transmission
Mechanism, the second flexible sheet and shell surround gas chamber, and gas chamber and surge-chamber are located at the opposite sides of the second flexible sheet, the
Two transmission mechanisms are located at surge-chamber and connect with the second flexible sheet, and the second transmission mechanism and the transmission of cock body component cooperate, and second
Transmission mechanism drives cock body component by inlet close when gas chamber is compressed, and drives cock body component by air inlet in gas chamber expansion
Mouth is opened.
Further, in the other preferred embodiments of the present invention, cock body component includes connecting rod and choking portion, and connecting rod has phase
To the first end and the second end of setting, choking portion is fixedly connected on first end, and shell includes being located at the indoor peace of pressure regulation
By shaft rotation connection, connecting rod can rotate around the axis to drive choking portion close or remote for dress portion, the middle part of connecting rod and mounting portion
From air inlet.
Further, in the other preferred embodiments of the present invention, the first flexible sheet is oppositely arranged with the second flexible sheet,
Thermal expansion room and gas chamber are located at the opposite two sides of surge-chamber.
Further, it in the other preferred embodiments of the present invention, thermally expands room and air inlet is located at the same side of surge-chamber,
First transmission mechanism includes the push rod connecting with the first flexible sheet, the second end interval setting of push rod and connecting rod, thermal expansion
When the expanded by heating of room, push rod is abutted with the second end, and drives choking portion to close air inlet by pushing the second end.
Further, it in the other preferred embodiments of the present invention, thermally expands room and gas chamber is arranged side by side, the two shares one section
Side wall, thermally expands room and gas chamber is located at the same side of surge-chamber.
Further, it in the other preferred embodiments of the present invention, thermally expands room and air inlet is located at the phase of surge-chamber
To two sides, the first transmission mechanism includes the push rod connecting with the first flexible sheet, and push rod and choking portion interval are arranged, and thermally expands room
When expanded by heating, push rod is abutted with choking portion, and drives choking portion to close air inlet by pushing the second end.
Further, in the other preferred embodiments of the present invention, gas chamber and air inlet are located at the same side of surge-chamber, and second
Transmission mechanism includes the pull rod connecting with the second flexible sheet, and one end of the separate choking portion of pull rod and connecting rod is hinged.
Further, in the other preferred embodiments of the present invention, the side positioned at gas chamber of the second flexible sheet is provided with
Pallet is provided with reset spring between pallet and shell.
Further, it in the other preferred embodiments of the present invention, is set on the shell opposite with the second flexible sheet in gas chamber
It is equipped with venthole, the closed rod connecting with the second elastic piece is provided in gas chamber, closed rod is leaned on far from one end of the second elastic piece
Nearly venthole and venthole interval are arranged, and gas chamber drives closed rod to close venthole when compressed.
A kind of fuel gas transmission equipment comprising above-mentioned pressure regulator.
The beneficial effect of the embodiment of the present invention is: the present invention provides a kind of pressure regulators, and the pressure regulator is just
Under normal working condition, according to the variation of gaseous-pressure in surge-chamber, regulator can be quickly corresponding, and by closing and opening
Air inlet makes its steady operation to be adjusted to the gas pressure in surge-chamber.Once the emergencies such as fire occur, it should
Pressure regulator heating temperature rises, and causes the indoor thermal expansion agent of thermal expansion on its interior is heated to expand rapidly, leads to the
One flexible sheet is squeezed into surge-chamber, the first transmission mechanism is driven, to drive cock body component for inlet close to cut off
Fuel gas path prevents the sprawling of the gas leakage aggravation intensity of a fire.After fire dangerous situation exclusion, it is cooling to thermally expand indoor thermal expansion agent
It shrinks, the state when pressure regulator being made to restore normal use realizes the recycling of equipment, avoids the wasting of resources.This hair
It is bright to additionally provide a kind of fuel gas transmission equipment comprising above-mentioned pressure regulator can be cut off in time when coping with the dangerous situations such as fire
Fuel gas path prevents the intensity of a fire from aggravating.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the cross-sectional view of pressure regulator in the first state provided by first embodiment of the invention；
Fig. 2 is the partial enlarged view of pressure regulator in the first state provided by first embodiment of the invention；
Fig. 3 is the cross-sectional view of pressure regulator in the second condition provided by first embodiment of the invention；
Fig. 4 is the cross-sectional view of pressure regulator in a third condition provided by first embodiment of the invention；
Fig. 5 is the cross-sectional view of pressure regulator provided by second embodiment of the invention.
Icon: 100- pressure regulator；110- shell；111- side body；112- upper housing；113- lower case；114- goes out
Tracheae；115- air inlet pipe；120- surge-chamber；121- air inlet；122- gas nozzle；123- cock body component；1231- connecting rod；1232- is stifled
Piston part；1233- first end；1234- the second end；1235- shaft；124- mounting portion；The first flexible sheet of 130-；131- heat
Expanding chamber；132- thermally expands agent；133- push rod；The second flexible sheet of 140-；141- gas chamber；142- pull rod；143- first is limited
Ring；144- pallet；145- reset spring；146- venthole；147- closed rod；The second stop collar of 148-；200- pressure regulator；
210- side wall.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of pressure regulator 100, including shell 110, shell 110 is internally provided with
Surge-chamber 120 and regulator (not indicating).
As shown in Figure 1, shell 110 is substantially at fusiform, including cylindric side body 111 with substantially at coniform
Upper housing 112 and lower case 113, surge-chamber 120 are located in the circular region of side body 111.The side of side body 111 is provided with
Gas outlet (not shown), gas outlet are connect with escape pipe 114, and surge-chamber 120 is in communication with the outside.Meanwhile it is opposite with gas outlet
The other side, the position of proximal housing 111 is provided with air inlet 121, air inlet 121 and air inlet pipe in 120 bottom wall of surge-chamber
115 connections, surge-chamber 120 is connected to gas cylinder.In the position of air inlet 121, to surge-chamber on the bottom wall of surge-chamber 120
A gas nozzle 122 is convexly equipped in 120, external combustion gas is entered in surge-chamber 120 by gas nozzle 122.
As depicted in figs. 1 and 2, it is provided with cock body component 123 in surge-chamber 120, the cock body component 123 is by 1231 He of connecting rod
Choking portion 1232 is constituted.Choking portion 1232 is the cylinder of a bottom surface band fluted (not indicating), and the shape and gas nozzle 122 of groove are right
It answers, choking portion 1232, which can be covered, closes air inlet 121 on gas nozzle 122.Connecting rod 1231 has the first end being oppositely arranged
1233 and the second end 1234, first end 1233 be fixedly connected with the side of choking portion 1232, the second end 1234 and pressure regulation
Device transmission connection.Meanwhile mounting portion 124 is convexly equipped on the bottom wall of surge-chamber 120 into surge-chamber 120, mounting portion 124 and company
The middle part of bar 1231 is rotatablely connected by shaft 1235.Under the driving of regulator, connecting rod 1231 can 1235 rotation around the shaft
To drive choking portion 1232 close to or far from air inlet 121.
As shown in Figure 1, the first flexible sheet 130 is additionally provided with inside shell 110, the first flexible sheet 130 and lower case
113 1 surround the thermal expansion room 131 of sealing jointly, and surge-chamber 120 and thermal expansion room 131 are located at the first flexible sheet 130
Opposite sides.It is provided with thermal expansion agent 132 in thermal expansion room 131, thermal expansion agent 132 is low boiling point organic solvent, including second
Acetoacetic ester, ethyl alcohol, benzene,toluene,xylene etc. can be cut off corresponding when fuel gas path according to specific needs in actual use
Temperature, to select the single solvent or mixed solvent of corresponding boiling point.It is worth noting that, in the other preferred embodiments of the present invention
In, thermal expansion agent 132 is also possible to the solution of the solid easily to distil or the release gas that can be heated, and can be subject to according to the actual situation
Selection.
As depicted in figs. 1 and 2, the first flexible sheet 130 is connected with the first transmission mechanism (not indicating), the first transmission mechanism
In surge-chamber 120.Specifically, the first transmission mechanism is a push rod 133 being arranged along the vertical direction in the present embodiment, is pushed away
Bar 133 is located at the underface of the second end 1234 of connecting rod 1231, and is spaced and is arranged with the second end 1234.Swelling agent is heated swollen
When swollen, the first flexible sheet 130 raises upward, and push rod 133 is driven to move upwards, after movement to a certain extent, push rod 133 and the
The contact of two ends 1234, and the second end 1234 is pushed to move upwards, 1235 rotation around the shaft of connecting rod 1231 drives choking portion
1232 move downward and finally cover gas nozzle 122, form state as shown in Figure 3, achieve the purpose that cut off fuel gas path.When
When temperature reduces, swelling agent cooling meat, push rod 133 is gradually separated with the second end 1234, and is restored to initial such as Fig. 4 institute
The state shown, achievees the purpose that reuse.
As shown in Figure 1, regulator includes the second flexible sheet 140 and the second transmission mechanism (not indicating).Second elasticity
Diaphragm 140 and upper housing 112 surround gas chamber 141 jointly, and gas chamber 141 and surge-chamber 120 are located at the second flexible sheet 140
Opposite sides.In the present embodiment, the first flexible sheet 130 is oppositely arranged with the second flexible sheet 140, so that thermal expansion room
131 and gas chamber 141 be located at the opposite two sides of surge-chamber 120.In the present embodiment, the second transmission mechanism is one along vertical side
To the pull rod 142 of setting, pull rod 142 is located in surge-chamber 120 and is fixedly connected with the second flexible sheet 140, pull rod 142 with
The junction of second flexible sheet 140 is provided with the first stop collar 143, and the first stop collar 143 is around pull rod 142 and and pull rod
142 interval settings, the first stop collar 143 can limit pull rod 142 and deviate vertical direction swing in a certain range, avoid swinging
The damage of the second flexible sheet 140 and pull rod 142 itself is caused greatly.
As depicted in figs. 1 and 2, the second end of pull rod 142 one end far from the second flexible sheet 140 and connecting rod 1231
1234 is hinged.When combustion gas air pressure is greater than the air pressure of air in gas chamber 141 in surge-chamber 120, combustion gas pushes the second flexible sheet
140 raise upward, and pull rod 142 is driven to move upwards, and the movement of pull rod 142 drives the second end 1234 to move upwards, connecting rod
1231 1235 rotations around the shaft, drive choking portion 1232 to move downward and finally cover gas nozzle 122, are formed as shown in Figure 1
State achievees the purpose that cut off fuel gas path.Lead to surge-chamber 120 when the combustion gas in surge-chamber 120 is gradually discharged from gas outlet
Interior air pressure reduces, and lower than when the air pressure of air, the second flexible sheet of air push 140 in gas chamber 141 restores in gas chamber 141
Original state drives pull rod 142 to move downward, and the movement of pull rod 142 drives the second end 1234 to move downward, and connecting rod 1231 is around the shaft
1235 rotations, drive choking portion 1232 to move upwards and opens air inlet 121, form state as shown in Figure 4, allow surge-chamber
Combustion gas in 120 is supplemented, and the output of combustion gas is allowed to stablize in a certain range.Preferably, second flexible sheet 140 is located at
The side of gas chamber 141 is provided with pallet 144, and reset spring 145 is provided between pallet 144 and upper housing 112.Reset spring
145 can allow the second flexible sheet 140 to more quickly restore original state, make entire 100 response speed of pressure regulator faster, combustion gas is defeated
It is more stable out.Pallet 144 can then disperse the elastic force that reset spring 145 provides, and spring is avoided directly to act on and bullet
Property diaphragm causes the damage of flexible sheet.
Preferably, as shown in Figure 1 and Figure 4, it is provided on shell 110 opposite with the second flexible sheet 140 in gas chamber 141
Venthole 146 is provided with the closed rod 147 connecting with the second flexible sheet 140 in gas chamber 141, and closed rod 147 is along reset spring
The setting of 145 axis, one end far from the second flexible sheet 140 are spaced setting close to venthole 146 and with venthole 146.When
When gas chamber 141 is compressed, the second flexible sheet 140 raises upward, and the air squeezed in gas chamber 141 is discharged from venthole 146, subtracts
Its few indoor air pressure, the second flexible sheet 140 can more quickly be moved up.Meanwhile second flexible sheet 140
Closed rod 147 is driven to move upwards, when air inlet 121 is blocked the closing of piston part 1232, closed rod 147 closes venthole 146,
To prevent the further deformation of the second flexible sheet 140 from causing under the collective effect of the residual air and reset spring 145 sealed up for safekeeping
The damage of cock body component 123.When 120 air pressure of surge-chamber reduces, the second flexible sheet 140 restores to the original state, and drives closed rod 147
It moves downward, venthole 146 is reopened, outside air enters gas chamber 141 by venthole 146, to the air in gas chamber 141
It is supplemented.Similarly, closed rod 147 is provided with the second stop collar 148, the second limit close to one end of the second flexible sheet 140
Position ring 148 is arranged around closed rod 147, moves in the vertical direction to limit closed rod 147.
Second embodiment
Referring to Figure 5, the present embodiment provides a kind of pressure regulator 200, including shell 110, it is arranged inside shell 110
There are surge-chamber 120 and regulator.The basic class of structure of itself and a kind of pressure regulator 100 provided in first embodiment
Seemingly, difference is: thermal expansion room 131 and gas chamber 141 are arranged side by side, and the two shares one section of side wall 210, thermally expand 131 He of room
Gas chamber 141 is located at the same side of surge-chamber 120.
As shown in figure 5, the first flexible sheet 130 surrounds the thermal expansion room of sealing with upper housing 112 and side wall 210 1 jointly
131, surge-chamber 120 is located at the opposite sides of the first flexible sheet 130 with thermal expansion room 131.It is filled in thermal expansion room 131
There is thermal expansion agent 132.First flexible sheet 130 is connected with the first transmission mechanism, and the first transmission mechanism is located in surge-chamber 120.
Specifically, the first transmission mechanism is a push rod 133 being arranged along the vertical direction in the present embodiment, and push rod 133 is located at choking portion
1232 surface, and be spaced and be arranged with choking portion 1232.When swelling agent expanded by heating, the first flexible sheet 130 is downwardly convex,
Push rod 133 is driven to move downward, after movement to a certain extent, push rod 133 is contacted with choking portion 1232, and pushes choking portion 1232
It moves downward and finally covers gas nozzle 122, achieve the purpose that cut off fuel gas path.When the temperature decreases, swelling agent cooling meat,
Push rod 133 is gradually separated with choking portion 1232, and is restored to initial position, achievees the purpose that reuse.
Regulator includes the second flexible sheet 140 and the second transmission mechanism.Second flexible sheet 140 and upper housing 112
Gas chamber 141 is surrounded jointly with side wall 210, and gas chamber 141 and surge-chamber 120 are located at the opposite sides of the second flexible sheet 140.
In the present embodiment, the first flexible sheet 130 and 140 height of the second flexible sheet are essentially identical, so that thermal expansion room 131 is gentle
Room 141 is located at the same side of surge-chamber 120.In the present embodiment, the second transmission mechanism is a pull rod being arranged along the vertical direction
142, pull rod 142 is located in surge-chamber 120 and is fixedly connected with the second flexible sheet 140, in pull rod 142 and the second flexible sheet
140 junction is provided with the first stop collar 143, and the first stop collar 143 is spaced setting around pull rod 142 and with pull rod 142, the
One stop collar 143 can limit pull rod 142 and deviate vertical direction swing in a certain range, avoid swinging and excessive cause the second elasticity
The damage of diaphragm 140 and pull rod 142 itself.
As shown in figure 5, the second end 1234 of the one end of pull rod 142 far from the second flexible sheet 140 and connecting rod 1231 is cut with scissors
It connects.When combustion gas air pressure is greater than the air pressure of air in gas chamber 141 in surge-chamber 120, combustion gas pushes the second flexible sheet 140 upwards
Protrusion drives pull rod 142 to move upwards, and the movement of pull rod 142 drives the second end 1234 to move upwards, and connecting rod 1231 is around the shaft
1235 rotations, drive choking portion 1232 to move downward and finally cover gas nozzle 122, achieve the purpose that cut off fuel gas path.When
Combustion gas in surge-chamber 120 is gradually discharged from gas outlet causes air pressure in surge-chamber 120 to reduce, and lower than air in gas chamber 141
Air pressure when, the second flexible sheet of air push 140 in gas chamber 141 restores to the original state, and drives pull rod 142 to move downward, pull rod
142 movement drives the second end 1234 to move downward, and 1235 rotation around the shaft of connecting rod 1231 drives choking portion 1232 to transport upwards
It is dynamic to open air inlet 121, it allows the combustion gas in surge-chamber 120 to be supplemented, the output of combustion gas is allowed to stablize in a certain range.
In conclusion the present invention provides a kind of pressure regulator, the pressure regulator in normal operation, according to
The variation of gaseous-pressure in surge-chamber, regulator can be quickly corresponding, and by closing and opening air inlet, to surge-chamber
Interior gas pressure is adjusted, and makes its steady operation.Once the emergencies such as fire, the pressure regulator heating temperature occurs
Rise, causes the heated expansion rapidly of the indoor thermal expansion agent of thermal expansion on its interior, cause the first flexible sheet to surge-chamber
Interior extruding drives the first transmission mechanism to prevent combustion gas from letting out to drive cock body component for inlet close to cut off fuel gas path
The sprawling of the dew aggravation intensity of a fire.After fire dangerous situation exclusion, indoor thermal expansion agent cooling meat is thermally expanded, the pressure regulator is made
Restore state when normal use, realizes the recycling of equipment, avoid the wasting of resources.The present invention also provides a kind of combustion gas is defeated
Send equipment comprising above-mentioned pressure regulator can cut off fuel gas path in time, prevent the intensity of a fire from adding when coping with the dangerous situations such as fire
It is acute.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of pressure regulator, including shell, the enclosure interior is provided with surge-chamber and regulator, the shell setting
There are air inlet and air outlet, the surge-chamber is connected with air inlet pipe and an air outlet pipe respectively by the air inlet and the gas outlet
It is logical, the cock body component for controlling the air inlet opening and closing, the cock body component and the pressure regulation are provided in the surge-chamber
Device transmission connection, which is characterized in that the pressure regulator further includes the first flexible sheet and the first transmission mechanism, and described the
One flexible sheet and the shell surround the thermal expansion room for being used to place thermal expansion agent of sealing, and the surge-chamber and the heat are swollen
Swollen room is located at the opposite sides of first flexible sheet, first transmission mechanism be located at the surge-chamber and with it is described
The connection of first flexible sheet, first transmission mechanism and cock body component transmission cooperate, and first transmission mechanism is in institute
Drive the cock body component by the inlet close when stating thermal expansion room expanded by heating；
The regulator includes the second flexible sheet and the second transmission mechanism, and second flexible sheet is surrounded with the shell
Gas chamber, the gas chamber and the surge-chamber are located at the opposite sides of second flexible sheet, second transmission mechanism
It is connect positioned at the surge-chamber and with second flexible sheet, second transmission mechanism is matched with cock body component transmission
It closes, second transmission mechanism drives the cock body component by the inlet close when the gas chamber is compressed, described
Gas chamber drives the cock body component to open the air inlet when expanding.
2. pressure regulator according to claim 1, which is characterized in that the cock body component includes connecting rod and choking portion,
The connecting rod has the first end and the second end being oppositely arranged, and the choking portion is fixedly connected on the first end, institute
Stating shell includes being located at the indoor mounting portion of the pressure regulation, the middle part of the connecting rod and the mounting portion to rotate company by shaft
It connects, the connecting rod can be rotated around the shaft to drive the choking portion close to or far from the air inlet.
3. pressure regulator according to claim 2, which is characterized in that first flexible sheet and second elasticity
Diaphragm is oppositely arranged, and the thermal expansion room and the gas chamber are located at the opposite two sides of the surge-chamber.
4. pressure regulator according to claim 3, which is characterized in that the thermal expansion room and the air inlet are located at institute
State the same side of surge-chamber, first transmission mechanism includes the push rod connecting with first flexible sheet, the push rod with
The second end interval of the connecting rod is arranged, when the thermal expansion room expanded by heating, the push rod and the second end
It abuts, and drives the choking portion to close the air inlet by pushing the second end.
5. pressure regulator according to claim 2, which is characterized in that the thermal expansion room and the gas chamber are set side by side
It sets, the two shares one section of side wall, and the thermal expansion room and the gas chamber are located at the same side of the surge-chamber.
6. pressure regulator according to claim 5, which is characterized in that the thermal expansion room and the air inlet distinguish position
In the opposite sides of the surge-chamber, first transmission mechanism includes the push rod connecting with first flexible sheet, described
Push rod and the choking portion interval are arranged, and when the thermal expansion room expanded by heating, the push rod is abutted with the choking portion, and is led to
It crosses and pushes the choking portion to drive the choking portion to close the air inlet.
7. pressure regulator according to claim 1, which is characterized in that second flexible sheet is located at the gas chamber
Side be provided with pallet, be provided with reset spring between the pallet and the shell.
8. a kind of fuel gas transmission equipment, which is characterized in that including pressure regulator as described in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611215236.2A CN106499869B (en) | 2016-12-23 | 2016-12-23 | A kind of pressure regulator and fuel gas transmission equipment |
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| CN201611215236.2A CN106499869B (en) | 2016-12-23 | 2016-12-23 | A kind of pressure regulator and fuel gas transmission equipment |
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| CN106499869A CN106499869A (en) | 2017-03-15 |
| CN106499869B true CN106499869B (en) | 2018-12-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107941295A (en) * | 2017-11-22 | 2018-04-20 | 重庆陆吾科技有限公司 | A kind of gas meter explosion-protection equipment simple in structure |
| CN114017679B (en) * | 2022-01-10 | 2022-04-01 | 常州台盈塑业科技有限公司 | Self-adaptive steady-flow one-way fluid pressure regulating valve device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3756429B2 (en) * | 2001-07-12 | 2006-03-15 | Ｓｍｃ株式会社 | Flow control valve |
| DE202004003275U1 (en) * | 2004-03-03 | 2005-07-21 | Bartholomäus, Gert | Fire protection valve has valve plate formed by hollow body filled with foaming material and with one part fixed to guide element of valve and other mounted displaceable on the guide element |
| CN201059380Y (en) * | 2007-06-14 | 2008-05-14 | 广东长青（集团）股份有限公司 | Gas relief valve |
| CN205745508U (en) * | 2016-06-20 | 2016-11-30 | 虞上海 | The high-power air relief valve of pipeline |
| CN206419537U (en) * | 2016-12-23 | 2017-08-18 | 盐城工学院 | A kind of pressure regulator and fuel gas transmission equipment |
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Granted publication date: 20181207 Termination date: 20201223 |