CN104613204A - Fuel gas pressure reduction mechanism - Google Patents
Fuel gas pressure reduction mechanism Download PDFInfo
- Publication number
- CN104613204A CN104613204A CN201510032954.5A CN201510032954A CN104613204A CN 104613204 A CN104613204 A CN 104613204A CN 201510032954 A CN201510032954 A CN 201510032954A CN 104613204 A CN104613204 A CN 104613204A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- spring
- diaphragm
- 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.)
- Pending
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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
-
- 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
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/165—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a diaphragm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
-
- 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
- F16K49/00—Means in or on valves for heating or cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a fuel gas pressure reduction mechanism which comprises a valve body, a fuel gas inlet, a fuel gas outlet and a pressure reduction cavity. A pressure reduction portion and a control portion are arranged in the pressure reduction cavity; the control portion comprises a spring, a valve rod, diaphragms, a lever block and baffles; the two sides of each diaphragm are connected with the valve rod and the spring respectively, and the axis of the valve rod and the axis of the spring are colinear; the other end of the spring makes contact with the valve body, the other end of the valve rod is located in the pressure reduction cavity, the lever block is located between the valve rod and the pressure reduction portion and used for force transmission between the valve rod and the pressure reduction portion, and the control portion further comprises a balance rod which is in clearance fit with the valve body. The fuel gas pressure reduction mechanism has the advantages that the structure is simple, the operation is stable, the maximum exhaust pressure is convenient to control, the service life is long, and the released fuel gas pressure is convenient to control.
Description
Technical field
The present invention relates to pressurized gas decompressor field, particularly relate to a kind of gas pressure-reducing mechanism.
Background technique
Along with rock gas uses more and more extensive, various forms of reduction valve emerges in an endless stream, and will promote the utilization of rock gas further to the further optimization of natural gas depressurization valve arrangement.For environmental consciousness, the fuel that rock gas is used for vehicle motor can reduce Vehicular exhaust pollution greatly, but in order to improve with rock gas the single aeration stroke of the vehicle being fuel, vehicle is provided with gas cylinder for accommodating rock gas, and the gas pressure being finally incorporated into cylinder is generally several kPas, like this, the reduction valve that high-pressure natural gas reduces pressure is seemed particularly important, simultaneously in practice, on the power that the stability of above reduction valve performance has also been reacted to vehicle intuitively even in traffic safety.
The tank internal pressure of prior art mesohigh gas cylinder can reach 20Mpa or higher, high pressure air relief valve is a kind of for the pressure control device in high-pressure gas pipeline system, its output value directly has influence on the running state of follow-up equipment, prior art mesohigh gas decompression valve arrangement mainly diaphragm type and piston type.No matter which kind of structure pressure-reducing valve, because step-down ratio is large, the operation noise of reduction valve is large, simultaneously because source of the gas end is high-pressure air source, reduction valve rapid wear.
Summary of the invention
For above-mentioned existing no matter which kind of structure pressure-reducing valve, because step-down ratio is large, the operation noise of reduction valve is large, simultaneously due to the problem that source of the gas end is high-pressure air source, reduction valve rapid wear, the invention provides a kind of gas pressure-reducing mechanism.
For solving the problem, a kind of gas pressure-reducing mechanism provided by the invention solves problem by following technological points: a kind of gas pressure-reducing mechanism, comprise valve body, described valve body is provided with suction port and air outlet, relief chamber is provided with in valve body, be provided with relief portion and the control device for controlling outlet pressure in relief chamber, described relief chamber is connected by relief portion with suction port; Described control device comprises spring, valve rod, diaphragm, lever block and baffle plate, diaphragm arrangement is in the side deviating from relief chamber, the both sides of diaphragm connect valve rod and spring respectively, the axis collinear of valve rod and spring, the other end of spring and valve body contact, the other end of valve rod is positioned at relief chamber, lever block between valve rod and relief portion for the transmission of power between the two;
Described baffle plate is the side of relief chamber, and the edge of diaphragm is fixed on baffle plate, and valve rod coordinates with flapper gap;
Described valve rod or diaphragm are also fixedly connected with balancing pole, the axis collinear of described balancing pole, spring and valve rod three, the free end of balancing pole and valve body Spielpassung.
Concrete, in the present invention, air-flow is entered by suction port, enters into relief chamber through relief portion, then is flowed out by air outlet.In above process, after air-flow enters into relief chamber, the air pressure of relief chamber increases, air pressure acts on diaphragm by the gap between plate washer and valve rod simultaneously, and when acting on the pressure on diaphragm above and being greater than the bullet stress of spring, valve rod is towards a lateral movement of spring, like this, by lever block transmitting force between valve rod and relief portion, relief portion is closed, and the pressure now in relief chamber reaches maximum value; Along with the exhaust of air outlet, the pressure of relief chamber reduces, and now the elastic force of spring is greater than the gas pressure on diaphragm, and valve rod is away from spring, and relief portion reopens to provide air inlet in relief chamber.In above structure, under original state, preferred spring is in compressive state, and diaphragm the present invention stop using or relief chamber in pressure do not reach maximum value before be fitted on baffle plate, in relief chamber, the maximum value of pressure is convenient to control simultaneously, as the lever block of the spring that adopts elasticity coefficient K different and different magnifiation in depth, turn round and look at outlet pressure maximum value of the present invention to be convenient to control, what be not only conducive to follow-up motor uses gas safety, also help the pressure avoiding diaphragm to be subject to excessive and cause diaphragm impaired, the power that the both sides of simultaneously the present invention diaphragm are in the course of the work subject to is comparatively balanced, be conducive to the elastic deformation amount reducing diaphragm further, be conducive to the working life of diaphragm.
Due to the present invention in the course of the work, the change of cylinder air consumption and the change of bleed pressure, all stem movement can be caused, the particularly speed-changing braking of vehicle, larger impact will be caused to the part in control device, for ease of realizing the uniformity of diaphragm deformation in above process, be beneficial to the size reducing operating noise of the present invention and the working life extending component in the present invention, component particularly in control device, the opposite side relatively connecting stem side at diaphragm arranges balancing pole, when making the present invention be subject to above-mentioned impact, the leading role of valve body to balancing pole motion morphology can be used for limiting diaphragm, the distortion of spring and valve rod or motion morphology, compact structure when being conducive to keeping each component collaborative work in the present invention for a long time, respectively comparatively even to distortion, reach and extend working life of the present invention and reduce the goal of the invention that the present invention runs noise.
Further technological scheme is:
For ease of simplifying the structure of lever block, be convenient to manufacture and the assembling in the present invention of lever block, the shape of described lever block is L-shaped, the flex point place of lever block is connected with valve body pin by a pin, lever block is provided with waist-shaped hole on one end of valve rod, is provided with another pin be fixed on valve rod in waist-shaped hole.The lever block of above structure, when stem movement, the pin be positioned on the valve rod shearing stress be applied on waist-shaped hole sidewall forces lever block to rotate around the pin be fixed on valve body, and the free end of lever block acts in relief portion for reducing or close the fluid free air space of relief portion.
As a kind of relief portion being convenient to manufacture, uninterrupted is convenient to control and noise is little, described relief portion is made up of a taper valve core and the conical valve seat be arranged on valve body.
Due to the present invention in the course of the work, pressure size in gas consumption size, source of the gas tank all can change, turn round and look at the process acting as change of lever block and relief portion power, for improving the life-span of the present invention, the taper valve core of described relief portion is also provided with steel ball, and described steel ball is between lever block and the taper valve core of relief portion.Above steel ball is avoided violent sliding friction occurs between lever block and relief portion by rolling friction.
For promoting relief portion in the cutout performance of closing relief portion under operating mode, the taper valve core of described relief portion is or/and conical valve seat is also provided with sealing gasket.
For ease of controlling working state of the present invention, described valve body is also provided with the solenoid valve for controlling suction port on off operating mode.
The pressure regulating screw described valve body is also threaded for adjusting spring deflection.
The pressure regulating screw arranged is for adjusting the decrement of spring, like this, amount of spring compression changes, the bullet stress intensity that then spring is applied on diaphragm changes, for keeping diaphragm both sides equilibrium of forces, the negotiability of relief portion will inevitably change, and turns round and look at the object reaching the outlet pressure changing air outlet, the maximum outlet pressure changing air outlet.As a kind of preferred structure, described pressure regulating screw is arranged on the axis of spring, namely arranges center hole in pressure regulating screw, and the points of engagement of described balancing pole and valve body is arranged in described center hole.
Heat absorption is needed due in the process that combustion gas is reduced pressure in the present invention, for prevent due to when gaseous-pressure declines owing to can not get heat supplement and cause absorbing heat in subsequent flowing even combustion process timely, as in the process that temperature gradient in continuous firing process of the present invention reduces gradually, easily cause the gaseous-pressure finally entering cylinder excessive, causing stops working even damages cylinder, the water channel for valve body heating is also provided with in valve body described in temperature, the entry end of described water channel and outlet end are respectively water channel entrance and water channel outlet, the temperature transducer near water channel outlet is also provided with in described water channel.Above temperature transducer is convenient to the water-exit temperature monitoring water channel, to determine whether that combustion gas obtains suitable heat supplement in the process of step-down.Further, water-supply line entrance can connect an electronic flow control valve, the output terminal of described temperature transducer is connected on described flow control valve.
The present invention has following beneficial effect:
1, structure of the present invention is simple, and air-flow is entered by suction port, enters into relief chamber through relief portion, then is flowed out by air outlet.In above process, after air-flow enters into relief chamber, the air pressure of relief chamber increases, air pressure acts on diaphragm by the gap between plate washer and valve rod simultaneously, and when acting on the pressure on diaphragm above and being greater than the bullet stress of spring, valve rod is towards a lateral movement of spring, like this, by lever block transmitting force between valve rod and relief portion, relief portion is closed, and the pressure now in relief chamber reaches maximum value; Along with the exhaust of air outlet, the pressure of relief chamber reduces, and now the elastic force of spring is greater than the gas pressure on diaphragm, and valve rod is away from spring, and relief portion reopens to provide air inlet in relief chamber.In above structure, under original state, preferred spring is in compressive state, and diaphragm the present invention stop using or relief chamber in pressure do not reach maximum value before be fitted on baffle plate, in relief chamber, the maximum value of pressure is convenient to control simultaneously, as the lever block of the spring that adopts elasticity coefficient K different and different magnifiation in depth, turn round and look at outlet pressure maximum value of the present invention to be convenient to control, what be not only conducive to follow-up motor uses gas safety, also help the pressure avoiding diaphragm to be subject to excessive and cause diaphragm impaired, the power that the both sides of simultaneously the present invention diaphragm are in the course of the work subject to is comparatively balanced, be conducive to the elastic deformation amount reducing diaphragm further, be conducive to the working life of diaphragm.
2, due to the present invention in the course of the work, the change of cylinder air consumption and the change of bleed pressure, all stem movement can be caused, the particularly speed-changing braking of vehicle, larger impact will be caused to the part in control device, for ease of realizing the uniformity of diaphragm deformation in above process, be beneficial to the size reducing operating noise of the present invention and the working life extending component in the present invention, component particularly in control device, the opposite side relatively connecting stem side at diaphragm arranges balancing pole, when making the present invention be subject to above-mentioned impact, the leading role of valve body to balancing pole motion morphology can be used for limiting diaphragm, the distortion of spring and valve rod or motion morphology, compact structure when being conducive to keeping each component collaborative work in the present invention for a long time, respectively comparatively even to distortion, reach and extend working life of the present invention and reduce the goal of the invention that the present invention runs noise.
Accompanying drawing explanation
Fig. 1 is the front sectional view of a kind of gas pressure-reducing mechanism of the present invention specific embodiment;
Fig. 2 is the side view cutaway drawing of a kind of gas pressure-reducing mechanism of the present invention specific embodiment.
Figure acceptance of the bid note is respectively: 1, spring, and 2, diaphragm, 3, baffle plate, 4, valve rod, 5, air outlet, 6, lever block, 7, solenoid valve, 8, suction port, 9, relief portion, 10, steel ball, 11, relief chamber, 12, pressure regulating screw, 13, water channel, 14, water channel outlet, 15, water channel entrance, 16, temperature transducer, 17, balancing pole.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
Embodiment 1:
As shown in Figure 1, a kind of diaphragm 2 formula automobile decompression mechanism being convenient to protection diaphragm 2, comprise valve body, described valve body is provided with suction port 8 and air outlet 5, relief chamber 11 is provided with in valve body, be provided with relief portion 9 and the control device for controlling outlet pressure in relief chamber 11, described relief chamber 11 is connected by relief portion 9 with suction port 8; Described control device comprises spring 1, valve rod 4, diaphragm 2, lever block 6 and baffle plate 3, diaphragm 2 is arranged on the side deviating from relief chamber 11, the both sides of diaphragm 2 connect valve rod 4 and spring 1 respectively, valve rod 4 and the axis collinear both spring 1, the other end of spring 1 and valve body contact, the other end of valve rod 4 is positioned at relief chamber 11, lever block 6 between valve rod 4 and relief portion 9 for the transmission of power between the two;
Described baffle plate 3 is the side of relief chamber 11, and the edge of diaphragm 2 is fixed on baffle plate 3, valve rod 4 and baffle plate 3 Spielpassung;
Described valve rod or diaphragm are also fixedly connected with balancing pole, the axis collinear of described balancing pole, spring and valve rod three, the free end of balancing pole and valve body Spielpassung.
In the present embodiment, air-flow is entered by suction port 8, enters into relief chamber 11 through relief portion 9, then is flowed out by air outlet 5.In above process, after air-flow enters into relief chamber 11, the air pressure of relief chamber 11 increases, air pressure acts on diaphragm 2 by the gap between plate washer and valve rod 4 simultaneously, and when acting on the pressure on diaphragm 2 above and being greater than the bullet stress of spring 1, valve rod 4 is towards a lateral movement of spring 1, like this, by lever block 6 transmitting force between valve rod 4 and relief portion 9, relief portion 9 is closed, and the pressure now in relief chamber 11 reaches maximum value; Along with the exhaust of air outlet 5, the pressure of relief chamber 11 reduces, and now the elastic force of spring 1 is greater than the gas pressure on diaphragm 2, and valve rod 4 is away from spring 1, and relief portion 9 reopens to provide air inlet in relief chamber 11.In above structure, under original state, preferred spring 1 is in compressive state, and diaphragm 2 the present invention stop using or relief chamber 11 in pressure do not reach maximum value before be fitted on baffle plate 3, in relief chamber 11, the maximum value of pressure is convenient to control simultaneously, as the lever block 6 of the spring 1 that adopts elasticity coefficient K different and different magnifiation in depth, turn round and look at outlet pressure maximum value of the present invention to be convenient to control, what be not only conducive to follow-up motor uses gas safety, also help the pressure avoiding diaphragm 2 to be subject to excessive and cause diaphragm 2 impaired, the power that the both sides of simultaneously the present invention diaphragm 2 are in the course of the work subject to is comparatively balanced, be conducive to the elastic deformation amount reducing diaphragm 2 further, be conducive to the working life of diaphragm 2.
Due to the present invention in the course of the work, the change of cylinder air consumption and the change of bleed pressure, valve rod 4 all can be caused to move, the particularly speed-changing braking of vehicle, larger impact will be caused to the part in control device, for ease of realizing the uniformity that in above process, diaphragm 2 is out of shape, be beneficial to the size reducing operating noise of the present invention and the working life extending component in the present invention, component particularly in control device, the opposite side relatively connecting valve rod 4 side at diaphragm 2 arranges balancing pole 17, when making the present invention be subject to above-mentioned impact, the leading role of valve body to balancing pole 17 motion morphology can be used for limiting diaphragm 2, the distortion of spring 1 and valve rod 4 or motion morphology, compact structure when being conducive to keeping each component collaborative work in the present invention for a long time, respectively comparatively even to distortion, reach and extend working life of the present invention and reduce the goal of the invention that the present invention runs noise.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, for ease of simplifying the structure of lever block 6, be convenient to manufacture and the assembling in the present invention of lever block 6, the shape of described lever block 6 is L-shaped, the flex point place of lever block 6 is connected with valve body pin by a pin, and lever block 6 is provided with waist-shaped hole on one end of valve rod 4, is provided with another pin be fixed on valve rod 4 in waist-shaped hole.The lever block 6 of above structure, when valve rod 4 moves, the pin be positioned on valve rod 4 shearing stress be applied on waist-shaped hole sidewall forces lever block 6 to rotate around the pin be fixed on valve body, and the free end of lever block 6 acts in relief portion 9 for reducing or close the fluid free air space of relief portion 9.
As a kind of relief portion 9 being convenient to manufacture, uninterrupted is convenient to control and noise is little, described relief portion 9 is made up of a taper valve core and the conical valve seat be arranged on valve body.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 1, as described in Figure 1, due to the present invention in the course of the work, pressure size in gas consumption size, source of the gas tank all can change, turn round and look at the process acting as change of lever block 6 and relief portion 9 power, for improving the life-span of the present invention, the taper valve core of described relief portion 9 is also provided with steel ball 10, described steel ball 10 is between lever block 6 and the taper valve core of relief portion 9.Above steel ball 10 is avoided, between lever block 6 and relief portion 9, violent sliding friction occurs by rolling friction.
For promoting relief portion 9 in the cutout performance of closing relief portion 9 under operating mode, the taper valve core of described relief portion 9 is or/and conical valve seat is also provided with sealing gasket.
Embodiment 4:
The present embodiment is further qualified on the basis of above embodiment, as depicted in figs. 1 and 2, for ease of controlling working state of the present invention, described valve body is also provided with the solenoid valve 7 for controlling suction port 8 on off operating mode.
The pressure regulating screw 12 described valve body is also threaded for adjusting spring 1 amount of deformation.
The pressure regulating screw 12 arranged is for adjusting the decrement of spring 1, like this, spring 1 decrement changes, the bullet stress intensity that then spring 1 is added on diaphragm 2 changes, for keeping diaphragm 2 both sides equilibrium of forces, the negotiability of relief portion 9 will inevitably change, and turns round and look at the object reaching the outlet pressure changing air outlet 8, the maximum outlet pressure changing air outlet 8.As a kind of preferred structure, described pressure regulating screw 12 is arranged on the axis of spring 1, namely arranges center hole in pressure regulating screw 12, and described balancing pole 17 is arranged in described center hole with the points of engagement of valve body.
Heat absorption is needed due in the process that combustion gas is reduced pressure in the present invention, for prevent due to when gaseous-pressure declines owing to can not get heat supplement and cause absorbing heat in subsequent flowing even combustion process timely, as in the process that temperature gradient in continuous firing process of the present invention reduces gradually, easily cause the gaseous-pressure finally entering cylinder excessive, causing stops working even damages cylinder, the water channel 13 for valve body heating is also provided with in described valve body, the entry end of described water channel 13 and outlet end are respectively water channel entrance 15 and water channel outlet 14, the temperature transducer 16 near water channel outlet 14 is also provided with in described water channel 13.Above temperature transducer 16 for monitoring the water-exit temperature of water channel 13, to determine whether that combustion gas obtains suitable heat supplement in the process of step-down.Further, water-supply line entrance 15 can connect an electronic flow control valve, the output terminal of described temperature transducer 16 is connected on described flow control valve.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other mode of executions drawn under technological scheme of the present invention, all should be included in protection scope of the present invention.
Claims (8)
1. a gas pressure-reducing mechanism, comprise valve body, described valve body is provided with suction port (8) and air outlet (5), relief chamber (11) is provided with in valve body, be provided with relief portion (9) and the control device for controlling outlet pressure in relief chamber (11), described relief chamber (11) is connected by relief portion (9) with suction port (8); It is characterized in that, described control device comprises spring (1), valve rod (4), diaphragm (2), lever block (6) and baffle plate (3), diaphragm (2) is arranged on the side deviating from relief chamber (11), the both sides of diaphragm (2) connect valve rod (4) and spring (1) respectively, valve rod (4) and spring (1) both axis collinear, the other end of spring (1) and valve body contact, the other end of valve rod (4) is positioned at relief chamber (11), and lever block (6) is positioned at the transmission for power between the two between valve rod (4) and relief portion (9);
The side that described baffle plate (3) is relief chamber (11), and the edge of diaphragm (2) is fixed on baffle plate (3), valve rod (4) and baffle plate (3) Spielpassung;
Described valve rod (4) or diaphragm (2) are also fixedly connected with balancing pole (17), the axis collinear of described balancing pole (17), spring (1) and valve rod (4) three, the free end of balancing pole (17) and valve body Spielpassung.
2. a kind of gas pressure-reducing mechanism according to claim 1, it is characterized in that, the shape of described lever block (6) is L-shaped, the flex point place of lever block (6) is connected with valve body pin by a pin, lever block (6) is provided with waist-shaped hole on one end of valve rod (4), is provided with another pin be fixed on valve rod (4) in waist-shaped hole.
3. a kind of gas pressure-reducing mechanism according to claim 1, is characterized in that, described relief portion (9) is made up of a taper valve core and the conical valve seat be arranged on valve body.
4. a kind of gas pressure-reducing mechanism according to claim 3, is characterized in that, the taper valve core of described relief portion (9) is also provided with steel ball (10), and described steel ball (10) is positioned between the taper valve core of lever block (6) and relief portion (9).
5. a kind of gas pressure-reducing mechanism according to claim 3, is characterized in that, the taper valve core of described relief portion (9) is or/and conical valve seat is also provided with sealing gasket.
6. according to a kind of gas pressure-reducing mechanism in claim 1 to 5 described in any one, it is characterized in that, described valve body being also provided with the solenoid valve (11) for controlling suction port (8) on off operating mode.
7. according to a kind of gas pressure-reducing mechanism in claim 1 to 5 described in any one, it is characterized in that, the pressure regulating screw (12) described valve body is also threaded for adjusting spring (1) amount of deformation.
8. according to a kind of gas pressure-reducing mechanism in claim 1 to 5 described in any one, it is characterized in that, the water channel (13) for valve body heating is also provided with in described valve body, the entry end of described water channel (13) and outlet end are respectively water channel entrance (15) and water channel outlet (14), are also provided with the temperature transducer (16) near water channel outlet (14) in described water channel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032954.5A CN104613204A (en) | 2015-01-23 | 2015-01-23 | Fuel gas pressure reduction mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032954.5A CN104613204A (en) | 2015-01-23 | 2015-01-23 | Fuel gas pressure reduction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104613204A true CN104613204A (en) | 2015-05-13 |
Family
ID=53147792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510032954.5A Pending CN104613204A (en) | 2015-01-23 | 2015-01-23 | Fuel gas pressure reduction mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104613204A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004054654A (en) * | 2002-07-22 | 2004-02-19 | Katsura Seiki Seisakusho:Kk | Gas pressure regulator |
| CN201650505U (en) * | 2010-05-04 | 2010-11-24 | 宁波九天仪表有限公司 | Compressed natural gas pressure reducing regulator used for automobile |
| CN201786485U (en) * | 2010-09-13 | 2011-04-06 | 河南欧意环保科技有限公司 | Water circulation heating compressed natural gas direct spraying pressure reducer |
| CN202580182U (en) * | 2012-05-08 | 2012-12-05 | 河南欧意环保科技股份有限公司 | Gas pressure regulator for vehicle |
-
2015
- 2015-01-23 CN CN201510032954.5A patent/CN104613204A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004054654A (en) * | 2002-07-22 | 2004-02-19 | Katsura Seiki Seisakusho:Kk | Gas pressure regulator |
| CN201650505U (en) * | 2010-05-04 | 2010-11-24 | 宁波九天仪表有限公司 | Compressed natural gas pressure reducing regulator used for automobile |
| CN201786485U (en) * | 2010-09-13 | 2011-04-06 | 河南欧意环保科技有限公司 | Water circulation heating compressed natural gas direct spraying pressure reducer |
| CN202580182U (en) * | 2012-05-08 | 2012-12-05 | 河南欧意环保科技股份有限公司 | Gas pressure regulator for vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202851198U (en) | Double piston type gas pressure reducing regulator for vehicles | |
| CN105003706A (en) | Natural gas pressure reducing valve with pressure reducing ratio being convenient to adjust | |
| CN104595498A (en) | Automobile pressure reducing valve | |
| CN204533692U (en) | A kind of vehicle fuel mechanism of decompressor operated steadily | |
| CN105179768B (en) | A kind of natural gas pressure-reducing valve for being beneficial to improve outlet pressure control accuracy | |
| CN206145241U (en) | Inner piston balanced type self -operated regulator | |
| CN204533546U (en) | A kind ofly be convenient to the automobile pressure reducing valve limiting the highest outlet pressure | |
| CN204533749U (en) | A kind of diaphragm type automobile decompression mechanism being convenient to protection diaphragm | |
| CN104595539A (en) | Fuel gas pressure reduction mechanism for vehicle | |
| CN205534292U (en) | Step -down mechanism | |
| CN205534440U (en) | High -pressure gas valve that reduces pressure | |
| CN205534441U (en) | There is not gas of leakage relief pressure valve | |
| CN104613204A (en) | Fuel gas pressure reduction mechanism | |
| CN204533698U (en) | The vehicle fuel mechanism of decompressor that a kind of outlet pressure is stable | |
| CN105650315A (en) | Gas pressure reduction valve | |
| CN105715841A (en) | Air valve structure | |
| CN202023786U (en) | Butterfly valve switch cylinder | |
| CN101178038B (en) | Two-way control pressure reducing regulator | |
| CN203702374U (en) | Improved structure of pressure reducer of gas-fueled vehicle | |
| CN204879017U (en) | Be applied to pressure regulator that outlet pressure adjusted on gas pressure governing valve | |
| CN104197026A (en) | Balancing floating combined structure of fuel gas pressure regulator | |
| CN104613221A (en) | Diaphragm type automotive pressure reduction mechanism | |
| CN210830637U (en) | Safety valve structure for piston type pressure reducer | |
| CN204922130U (en) | Do benefit to decompression than natural gas relief pressure valve of adjusting | |
| CN205534435U (en) | Be favorable to improving step -down main valve of pressure adjustment precision of giving vent to anger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |
|
| WD01 | Invention patent application deemed withdrawn after publication |