CN206093089U - A pressure reducer for CNG decompression - Google Patents
A pressure reducer for CNG decompression Download PDFInfo
- Publication number
- CN206093089U CN206093089U CN201621192026.1U CN201621192026U CN206093089U CN 206093089 U CN206093089 U CN 206093089U CN 201621192026 U CN201621192026 U CN 201621192026U CN 206093089 U CN206093089 U CN 206093089U
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- Prior art keywords
- piston rod
- valve barrel
- decompressor
- inducing
- air inlet
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Abstract
The utility model belongs to the technical field of the supporting device of single current valve, a a pressure reducer for CNG decompression is disclosed for solve current pressure reducer because of utilize outside hydrologic cycle realize freeze proof existences the structure complicacy and in the use the bigger problem of vibration and noise. The utility model discloses a left side valve body, right valve body, left side valve body and right valve body form the body through heat absorbing plate connected together, the end connection of left side valve body has the air inlet cover who is used for with outside intake -tube connection, the end connection of right side valve body has and is used for giving vent to anger approximately with outside outlet duct is connected, the body endotheca be equipped with can be in the body gliding piston rod, the perforating hole has been seted up in the piston rod, be provided with the disk seat that is used for gas to pass through between air inlet cover and the left valve body, the chamber of admitting air has between the one end of disk seat and piston rod.
Description
Technical field
This utility model belongs to decompressor technical field, and in particular to a kind of decompressor for compressed natural gas pressure-reducing gas.
Background technology
Air relief valve is, by regulation, inlet pressure to be reduced to into the outlet pressure of a certain needs, and by the energy of medium itself
Amount, makes outlet pressure automatically save stable valve.From the viewpoint of hydrodynamics, air relief valve is that a local resistance can become
The restricting element of change, i.e., by changing orifice size, the kinetic energy for making flow velocity and fluid changes, and causes the different pressure losses, from
And reach the purpose of decompression.Then by control and the regulation of regulating system, the fluctuation and spring force for making downstream pressure balances each other,
Downstream pressure is set to keep constant in certain range of error.Therefore, air relief valve is widely used in every field.
Generally using diaphragm spring type structure formation one-level or second depressurized mode, such as Application No. in prior art
201220610075.8 utility model patent disclose a kind of liquefied natural gas decompressor, including lower cover component, cover assembly,
Valve element, convoluted diaphragm and screw arbor assembly, the valve element and convoluted diaphragm are arranged between lower cover component and cover assembly, screw rod group
Part penetrates cover assembly and is arranged on outside cover assembly, and cover assembly sealing is fixed in lower cover component；Convoluted diaphragm is metal wave
Stricture of vagina diaphragm；Convoluted diaphragm is beryllium copper skin convoluted diaphragm.
However, air relief valve is in use, high-pressure natural gas during gas decompression, due to the presence of pressure differential,
Gas decompression expands, and needs to absorb substantial amounts of heat, simply the temperature drop of environment, freezes so as to be easily caused decompressor, subtracts
Depressor cisco unity malfunction is used, and has a strong impact on the safety of pressure regulating equipment and decompression process.For the problem, Application No.
201020526532.6 utility model patent disclose a kind of water circulation heating compressed natural gas direct spraying pressure reducer, including main casing
Body, one-level valve port, one-level chamber and secondary cavity, equipped with one-level valve port and air outlet adapter on main casing, have one in one-level valve port
Level valve element, there is the one-level chamber and secondary cavity of connection in main casing body, one-level within the chamber has connected one-level pull bar and L-shaped thick stick
There is first diaphragm between the one-level lid of bar, main casing and its underpart, through on the one-level pull bar of first diaphragm equipped with top board, one
There is one-level spring between level diaphragm and one-level lid, there is secondary valve mouth on secondary cavity bottom surface, have in secondary valve mouth and stretch out secondary valve mouth
Outer needle, the lower end of needle is placed in the intercommunicating pore of one-level chamber and secondary cavity, and two grades of dividing plates are arranged at secondary valve mouth top, main
There is secondary membrane piece between housing and two grades of lids on its top, respectively there is a secondary membrane piece pressing plate, needle on secondary membrane piece top and bottom
Through two grades of dividing plates, secondary membrane piece pressing plate and secondary membrane pieces, adjustment screw, adjustment screw and secondary membrane are arranged at two grades of lid cavity tops
There are two grades of springs between piece, two grades cover equipped with vacuum tube.
And this mode using outside hot water circuit will certainly increase the complexity of system, while causing decompressor
Complex structure.
In use, the length stretched into due to piston rod between inlet chamber is constantly become decompressor of the prior art
Change, and the passage of valve seat faces the end of piston rod, this structure causes piston rod in sliding process due to high pressure gas
The injection effect of body so that decompressor vibrates in use larger with noise.
Utility model content
This utility model is in order to solve existing decompressor because realizing structure that is freeze proof and existing using outside water circulation
Complexity and in use vibration and the larger problem of noise ratio, and a kind of decompression for compressed natural gas pressure-reducing gas is provided
Device, can utilize the structure of decompressor itself to be absorbed heat from environment so as to prevent decompressor from damaging, while this utility model
Compared to existing technology using the mode of recirculated water, the complex degree of structure and decompressor of whole depressurized system itself can be reduced
The complexity of structure；The distribution of air-flow can be changed simultaneously, decompressor vibration in use and noise can be reduced.
To solve above-mentioned technical problem, the technical scheme that this utility model is adopted is：
A kind of decompressor for compressed natural gas pressure-reducing gas, it is characterised in that including left valve barrel, right valve barrel, the left valve
Body and right valve barrel are joined together to form body through absorber plate, and the end of the left valve barrel is connected with for the air inlet with outside
The Intake Cover of pipe connection, the end of the right valve barrel is connected with the outlet lid for being connected with outside escape pipe, the body
Inside being arranged with can offer through hole, the Intake Cover and left valve barrel in the piston rod of this slip in vivo in the piston rod
Between be provided with valve seat, on the valve seat arrange offer air inlet, between the valve seat and one end of piston rod have air inlet
Chamber, between the other end and right valve barrel of the piston rod arrange have outlet chamber, the through hole in the piston rod respectively with enter
Air cavity is connected with outlet chamber, the left valve barrel, heat absorption for installing heat absorbing sheet is formed between piston rod, right valve barrel and absorber plate
Space, the heat absorbing sheet Jing heat transfers pad is arranged on piston rod；It is arranged with positioned at the periphery of the tailpiece of the piston rod at inlet chamber end and is in
The inducing QI cup of arc-shaped, and the nock of inducing QI cup is towards valve seat, has gap between the inducing QI cup and left valve barrel.
The inducing QI cup is processed using beryllium-bronze, and the tailpiece of the piston rod for installing inducing QI cup is provided with what is caved inward
Hemispherical arcuate groove.
Multiple air inlets, the trapezoidal shape in section of the air inlet, and close air inlet are uniformly offered on the valve seat
The air inlet opening size at lid end is more than the air inlet size near tailpiece of the piston rod.
Gas cylinder is provided with the valve seat end face of tailpiece of the piston rod, the gas cylinder is included in the first round table-like inducing QI
Cylinder and in the second hemispherical gas cylinder, the centrage of the gas cylinder with the axis of piston rod on the same line, and the
One gas cylinder is arranged on valve seat.
Uniform intervals are provided with multiple heat absorbing sheets on the heat transfer pad, and multiple heat absorption holes are offered on the absorber plate.
Heat insulating mattress is provided between the groove walls at the heat transfer pad and close left valve barrel end.
The periphery of the piston rod is arranged with regulation spring, and the left valve barrel is provided with for installing the sky for adjusting spring
Chamber, is connected with the regulation joint for connecting with cavity on the left valve barrel.
O-ring seal is provided between the Intake Cover and left valve barrel, is provided between the outlet lid and right valve barrel O-shaped
Sealing ring.
First oil sealing is set between the piston rod and left valve barrel, second is provided between the piston rod and right valve barrel oily
Envelope.
Compared with prior art, this utility model has the advantages that：
Decompressor for compressed natural gas pressure-reducing gas of the present utility model, compressed gas are from Intake Cover and then pass through through hole
When into outlet chamber, because the change of pressure can absorb substantial amounts of heat, the temperature around outlet chamber can be reduced rapidly,
In this process heat absorbing sheet passes to heat transfer pad from extraneous a large amount of heat absorptions, and heat transfer pad will absorb again heat transfer to piston
Bar, so as to prevent the temperature rapid decrease of the outlet chamber near heat transfer pad, prevents decompressor from situation about freezing occur.Compared to
Prior art, this utility model can carry out antifreeze process of absorbing heat by pressure reducer ontology, compared to prior art using outside
The holding mode of recirculated water, simplifies the structure of decompressor and whole depressurized system, reduces production and the cost for manufacturing.
Simultaneously left valve barrel of the present utility model and right valve barrel adopted and set between split-type structural, and left valve barrel and right valve barrel
Heat absorbing sheet is equipped with, and the pad that conducts heat is provided with heat insulating mattress with the groove walls of left valve barrel, can subtract to greatest extent
Few low temperature is transmitted from outlet chamber to left valve barrel, prevents the performance for affecting to adjust spring due to low temperature, it is ensured that adjust spring pair
In the adjustment effect of air pressure, the steady of air pressure adjustment is maintained.
In use due to being provided with the inducing QI cup in arc-shaped on piston rod, piston rod is in left valve barrel and right valve barrel
During inside moving left and right, inducing QI cup follows piston rod to slide together, so as to keep between the end of piston rod and valve seat
The form of inlet chamber will not change, and piston rod does not easily produce the sharp place of vibration and noise with inducing QI cup,
Eliminate the problem of the abrupt change of cross-section brought due to moving for piston rod such that it is able to reduce air-flow and produce in impact process
Vibration and noise.
The section of air inlet of the present utility model is set to trapezoidal shape, and gas cylinder is arranged on valve seat so that air-flow
Piston rod can be uniformly flowed to along gas cylinder, can further reduce decompressor vibration in use and noise.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of gas cylinder of the present utility model；
Labelling in figure：1st, Intake Cover, 2, O-ring seal, 3, valve seat, 4, gasket seal, 5, inlet chamber, the 6, first oil sealing,
7th, left valve barrel, 8, adjust spring, 9, piston rod, 10, absorber plate, 11, heat absorbing sheet, 12, heat transfer pad, the 13, second oil sealing, 14,
Outlet chamber, 15, outlet lid, 16, outlet passageway, 17, right valve barrel, 18, through hole, 19, adjust joint, 20, inlet channel, 21,
Inducing QI cup, 22, gas cylinder, 23, air inlet, the 24, first gas cylinder, the 25, second gas cylinder.
Specific embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
The a part of embodiment of type, is not whole embodiments.Based on the embodiment in this utility model, the ordinary skill people of this area
Other embodiments used that member is obtained under the premise of creative work is not made, belong to protection model of the present utility model
Enclose.
With reference to accompanying drawing, the decompressor for compressed natural gas pressure-reducing gas of the present utility model, including left valve barrel 7, right valve barrel 17,
The left valve barrel 7 and right valve barrel 17 are joined together to form body through absorber plate 10, and the end of the left valve barrel 7 is connected with use
In the Intake Cover 1 being connected with outside air inlet pipe, inlet channel 20 is provided with Intake Cover 1, the end of the right valve barrel 17 connects
The outlet lid 15 for being connected with outside escape pipe is connected to, outlet passageway 16 is provided with outlet lid, be arranged in the body
Have the piston rod 9 that can in vivo slide at this, i other words, one end of piston rod 9 is set on left valve barrel 7, piston rod 7 it is another
End is set on right valve barrel 17, and through hole 18 is offered in the piston rod, is provided between the Intake Cover 1 and left valve barrel 7
For the valve seat 3 that gas passes through, offer air inlet 23 on valve seat 3, air inlet 23 connect with inlet channel 20 valve seat 3 with
There is inlet chamber 5 between one end of piston rod 9, arrange between the other end and right valve barrel 17 of the piston rod 9 and there is outlet chamber
14, the through hole 18 in the piston rod 9 connects respectively 14, and inlet chamber 5 and inlet channel 20 with inlet chamber 5 and outlet chamber
Connect, and outlet chamber is connected with outlet passageway 16；Shape between the left valve barrel 7, piston rod 9, right valve barrel 17 and absorber plate 10
Into being used to install the heat absorption space of heat absorbing sheet 11, i other words the right side of left valve barrel 7, the left side of right valve barrel 17, the outer wall of piston rod
The heat absorption space for installing heat absorbing sheet 11 is formed between absorber plate, the Jing of the heat absorbing sheet 11 heat transfer pads 12 are arranged on piston
On bar 9；The inducing QI cup 21 in arc-shaped, and the arc of inducing QI cup 21 are arranged with positioned at the periphery at the end of piston rod 9 at the end of inlet chamber 5
Mouth has gap towards valve seat 3, between the inducing QI cup 21 and left valve barrel 7.
Decompressor for compressed natural gas pressure-reducing gas of the present utility model, compressed gas are from Intake Cover and then pass through through hole
When into outlet chamber, because the change of pressure can absorb substantial amounts of heat, the temperature around outlet chamber can be reduced rapidly,
In this process heat absorbing sheet passes to heat transfer pad from extraneous a large amount of heat absorptions, and heat transfer pad will absorb again heat transfer to piston
Bar, so as to prevent the temperature rapid decrease of the outlet chamber near heat transfer pad, prevents decompressor from situation about freezing occur.Compared to
Prior art, this utility model can carry out antifreeze process of absorbing heat by pressure reducer ontology, compared to prior art using outside
The holding mode of recirculated water, simplifies the structure of decompressor and whole depressurized system, reduces production and the cost for manufacturing.
Simultaneously left valve barrel of the present utility model and right valve barrel adopted and set between split-type structural, and left valve barrel and right valve barrel
Heat absorbing sheet is equipped with, and the pad that conducts heat is provided with heat insulating mattress with the groove walls of left valve barrel, can subtract to greatest extent
Few low temperature is transmitted from outlet chamber to left valve barrel, prevents the performance for affecting to adjust spring due to low temperature, it is ensured that adjust spring pair
In the adjustment effect of air pressure, the steady of air pressure adjustment is maintained.
In use due to being provided with the inducing QI cup in arc-shaped on piston rod, piston rod is in left valve barrel and right valve barrel
During inside moving left and right, inducing QI cup follows piston rod to slide together, so as to keep between the end of piston rod and valve seat
The form of inlet chamber will not change, and piston rod does not easily produce the sharp place of vibration and noise with inducing QI cup,
Eliminate the problem of the abrupt change of cross-section brought due to moving for piston rod such that it is able to reduce air-flow and produce in impact process
Vibration and noise.
Used as a kind of preferred mode of this utility model, the inducing QI cup 21 is processed using beryllium-bronze, beryllium-bronze tool
The characteristics of having high intensity and high resiliency performance, the end of piston rod 9 for installing inducing QI cup 21 is provided with the hemisphere for caving inward
The arcuate groove of shape.In use due to being provided with the inducing QI cup in arc-shaped on piston rod, piston rod exists this utility model
During moving left and right in valve body, inducing QI cup follows piston rod to slide together, so as to keep the end of piston rod and valve seat it
Between the form of inlet chamber will not change, and piston rod and inducing QI cup easily do not produce the sharp of vibration and noise
Place, eliminates the problem of the abrupt change of cross-section brought due to moving for piston rod such that it is able to reduce air-flow in impact process
The vibration of generation and noise.
Uniformly offer multiple air inlets 23 on valve seat of the present utility model 3, the trapezoidal shape in section of the air inlet 23,
And the opening size of air inlet 23 near the end of Intake Cover 1 is more than the air inlet size near the end of piston rod 9.
As a kind of preferred mode of this utility model, on the end face of valve seat 3 at the end of piston rod 9 gas cylinder is provided with
22, the gas cylinder 22 is included in round table-like the first gas cylinder 24 and in the second hemispherical gas cylinder 25, the gas cylinder
On the same line, and the first gas cylinder 24 is arranged on valve seat 3 for 22 centrage and the axis of piston rod 9.This practicality is new
The section of the air inlet of type is set to trapezoidal shape so that the air-flow entered from inlet channel can be by air inlet progressively to inducing QI
Cylinder sprays, and gas cylinder is arranged on valve seat so that air-flow can uniformly flow to piston rod along gas cylinder, can enter one
Step reduces decompressor vibration in use and noise.
The section of air inlet of the present utility model is set to trapezoidal shape, and gas cylinder is arranged on valve seat so that air-flow
Piston rod can be uniformly flowed to along gas cylinder, can further reduce decompressor vibration in use and noise.
As a kind of preferred mode of this utility model, in order to quickly absorb heat, uniform intervals on the heat transfer pad 12
Multiple heat absorbing sheets 11 are installed, multiple heat absorption holes are offered on the absorber plate 10, extraneous heat is entered from heat absorption hole, so
Adsorbed by heat absorbing sheet, passed to heat transfer pad 12, be then delivered to around outlet chamber 14, prevented outlet chamber 14 weeks
The parts for enclosing freeze.
Heat transfer pad of the present utility model can adopt the potsherd of high thermal conductivity.
As a kind of preferred mode of this utility model, open up fluted on the excircle of the piston rod 9, the heat transfer
Pad 12 is arranged in groove.
In order to further prevent low temperature to be delivered to regulation spring, the heat transfer pad 12 and the groove near the end of left valve barrel 7
Heat insulating mattress (not drawing in accompanying drawing) is provided between wall.
The through hole and the insertion for sealing piston bar 9 passed through for gas is provided with valve seat of the present utility model 3
The gasket seal 4 in hole.
The periphery of the piston rod 9 of the present utility model is arranged with regulation spring 8, and the left valve barrel 7 is provided with for pacifying
The cavity of section spring 8 is debug, air relief valve in use, is switched and the change of air pressure in itself, by adjusting due to continuous
The left and right of section spring 8 can adjust the area of inlet chamber and outlet chamber so that the air pressure in inlet chamber 5 and outlet chamber 14 is realized dynamic
State is balanced, and so as to reach the effect of voltage stabilizing, the regulation joint 19 for connecting with cavity is connected with the left valve barrel 7.
In order to realize sealing function, O-ring seal 2, institute are provided between Intake Cover of the present utility model 1 and left valve barrel 7
State and be provided with O-ring seal between outlet lid 15 and right valve barrel 17.
In order to ensure the smooth-going of piston rod movement, the first oil sealing 6, the work are set between the piston rod 9 and left valve barrel 7
The second oil sealing 13 is provided between stopper rod 9 and right valve barrel 17, by the first oil sealing and the second oil sealing prevent piston rod 9 and body it
Between produce dry friction.
Installation process of the present utility model is：First heat transfer pad is arranged on piston rod, spring 8 then will be reconciled and is arranged
On piston rod 9 and it is fitted in left valve barrel, and inducing QI cup is installed on the piston rod, then again right valve barrel is set in into piston rod
The other end, be then fixed together by absorber plate between left valve barrel and right valve barrel；Finally it is installed on left valve barrel
Gas lid, installs outlet lid on right valve barrel, and loads valve seat between Intake Cover and left valve barrel.
Embodiment one
The decompressor for compressed natural gas pressure-reducing gas of the present embodiment, including left valve barrel, right valve barrel, the left valve barrel and the right side
Valve body is joined together to form body through absorber plate, and the end of the left valve barrel is connected with for being connected with outside air inlet pipe
Intake Cover, the end of the right valve barrel is connected with the outlet lid for being connected with outside escape pipe, is arranged in the body
Having can offer through hole in the piston rod of this slip in vivo in the piston rod, set between the Intake Cover and left valve barrel
Valve seat is equipped with, is arranged on the valve seat and is offered air inlet, there is inlet chamber between the valve seat and one end of piston rod, it is described
Arrange between the other end and right valve barrel of piston rod and there is outlet chamber, the through hole in the piston rod respectively with inlet chamber and go out
Air cavity is connected, and the left valve barrel, heat absorption space for installing heat absorbing sheet is formed between piston rod, right valve barrel and absorber plate, institute
State heat absorbing sheet Jing heat transfer pads to be arranged on piston rod；Periphery positioned at the tailpiece of the piston rod at inlet chamber end is arranged with arc-shaped
Inducing QI cup, and the nock of inducing QI cup is towards valve seat, has gap between the inducing QI cup and left valve barrel.
Embodiment two
The decompressor for compressed natural gas pressure-reducing gas of the present embodiment, including left valve barrel, right valve barrel, the left valve barrel and the right side
Valve body is joined together to form body through absorber plate, and the end of the left valve barrel is connected with for being connected with outside air inlet pipe
Intake Cover, the end of the right valve barrel is connected with the outlet lid for being connected with outside escape pipe, is arranged in the body
Having can offer through hole in the piston rod of this slip in vivo in the piston rod, set between the Intake Cover and left valve barrel
Valve seat is equipped with, is arranged on the valve seat and is offered air inlet, there is inlet chamber between the valve seat and one end of piston rod, it is described
Arrange between the other end and right valve barrel of piston rod and there is outlet chamber, the through hole in the piston rod respectively with inlet chamber and go out
Air cavity is connected, and the left valve barrel, heat absorption space for installing heat absorbing sheet is formed between piston rod, right valve barrel and absorber plate, institute
State heat absorbing sheet Jing heat transfer pads to be arranged on piston rod；Periphery positioned at the tailpiece of the piston rod at inlet chamber end is arranged with arc-shaped
Inducing QI cup, and the nock of inducing QI cup is towards valve seat, has gap between the inducing QI cup and left valve barrel；The inducing QI cup is adopted
Beryllium-bronze is processed, and the tailpiece of the piston rod for installing inducing QI cup is provided with the hemispherical arcuate groove for caving inward.
Embodiment three
On the basis of embodiment two, multiple air inlets, the section of the air inlet are uniformly offered on the valve seat
Trapezoidal shape, and the air inlet opening size near Intake Cover end is more than the air inlet size near tailpiece of the piston rod.
Example IV
On the basis of embodiment three, on the valve seat end face of tailpiece of the piston rod gas cylinder, the gas cylinder are provided with
Including in round table-like the first gas cylinder and in the second hemispherical gas cylinder, the centrage of the gas cylinder and the axle of piston rod
Line on the same line, and the first gas cylinder be arranged on valve seat on.
Embodiment five
On the basis of any of the above-described embodiment, uniform intervals are provided with multiple heat absorbing sheets, institute on the heat transfer pad
State and offer on absorber plate multiple heat absorption holes.
Embodiment six
On the basis of any of the above-described embodiment, arrange between the groove walls at the heat transfer pad and close left valve barrel end
There is heat insulating mattress.
Embodiment seven
On the basis of any of the above-described embodiment, the periphery of the piston rod is arranged with regulation spring, the left valve barrel
It is provided with for installing the cavity for adjusting spring, the regulation joint for connecting with cavity is connected with the left valve barrel.
Embodiment eight
On the basis of any of the above-described embodiment, O-ring seal is provided between the Intake Cover and left valve barrel, it is described
O-ring seal is provided between outlet lid and right valve barrel.
Embodiment nine
On the basis of any of the above-described embodiment, the first oil sealing, the work are set between the piston rod and left valve barrel
The second oil sealing is provided between stopper rod and right valve barrel.
Claims (9)
1. a kind of decompressor for compressed natural gas pressure-reducing gas, including left valve barrel, right valve barrel, the left valve barrel and right valve barrel are passed through
Absorber plate is joined together to form body, and the end of the left valve barrel is connected with the air inlet for being connected with outside air inlet pipe
Lid, the end of the right valve barrel is connected with the outlet lid for being connected with outside escape pipe, and being arranged with the body can
In the piston rod that this slides in vivo, through hole is offered in the piston rod, between the Intake Cover and left valve barrel valve is provided with
Seat, arranges on the valve seat and offers air inlet, has inlet chamber, the piston rod between the valve seat and one end of piston rod
The other end and right valve barrel between arrange there is outlet chamber, the through hole in the piston rod connects respectively with inlet chamber and outlet chamber
It is logical, the left valve barrel, heat absorption space for installing heat absorbing sheet is formed between piston rod, right valve barrel and absorber plate, the heat absorption
Piece Jing heat transfer pads are arranged on piston rod；The inducing QI in arc-shaped is arranged with positioned at the periphery of the tailpiece of the piston rod at inlet chamber end
Cup, and the nock of inducing QI cup is towards valve seat, has gap between the inducing QI cup and left valve barrel.
2. the decompressor for compressed natural gas pressure-reducing gas according to claim 1, it is characterised in that the inducing QI cup is adopted
Beryllium-bronze is processed, and the tailpiece of the piston rod for installing inducing QI cup is provided with the hemispherical arcuate groove for caving inward.
3. the decompressor for compressed natural gas pressure-reducing gas according to claim 2, it is characterised in that uniform on the valve seat
Multiple air inlets, the trapezoidal shape in section of the air inlet are offered, and the air inlet opening size near Intake Cover end is big
In the air inlet size near tailpiece of the piston rod.
4. the decompressor for compressed natural gas pressure-reducing gas according to claim 3, it is characterised in that near tailpiece of the piston rod
It is provided with gas cylinder on valve seat end face, the gas cylinder is included in round table-like the first gas cylinder and in the second hemispherical inducing QI
Cylinder, on the same line, and the first gas cylinder is arranged on valve seat for the centrage of the gas cylinder and the axis of piston rod.
5. the decompressor for compressed natural gas pressure-reducing gas according to claim 1, it is characterised in that on the heat transfer pad
Uniform intervals are provided with multiple heat absorbing sheets, and multiple heat absorption holes are offered on the absorber plate.
6. the decompressor for compressed natural gas pressure-reducing gas according to claim 5, it is characterised in that the heat transfer pad with
Heat insulating mattress is provided between the groove walls at left valve barrel end.
7. the decompressor for compressed natural gas pressure-reducing gas according to claim 1, it is characterised in that the piston rod it is outer
Enclose and be arranged with regulation spring, the left valve barrel is provided with for installing the cavity for adjusting spring, and on the left valve barrel use is connected with
In the regulation joint connected with cavity.
8. the decompressor for compressed natural gas pressure-reducing gas according to claim 1, it is characterised in that the Intake Cover with it is left
O-ring seal is provided between valve body, between the outlet lid and right valve barrel O-ring seal is provided with.
9. according to the arbitrary described decompressor for compressed natural gas pressure-reducing gas of claim 1-8, it is characterised in that the piston
First oil sealing is set between bar and left valve barrel, the second oil sealing is provided between the piston rod and right valve barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621192026.1U CN206093089U (en) | 2016-10-27 | 2016-10-27 | A pressure reducer for CNG decompression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621192026.1U CN206093089U (en) | 2016-10-27 | 2016-10-27 | A pressure reducer for CNG decompression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206093089U true CN206093089U (en) | 2017-04-12 |
Family
ID=58486340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621192026.1U Expired - Fee Related CN206093089U (en) | 2016-10-27 | 2016-10-27 | A pressure reducer for CNG decompression |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206093089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286922A (en) * | 2016-10-27 | 2017-01-04 | 泸州江阳超能燃气有限责任公司 | A kind of decompressor for compressed natural gas pressure-reducing gas |
| CN109595369A (en) * | 2017-10-02 | 2019-04-09 | 株式会社日气 | Adjuster |
-
2016
- 2016-10-27 CN CN201621192026.1U patent/CN206093089U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286922A (en) * | 2016-10-27 | 2017-01-04 | 泸州江阳超能燃气有限责任公司 | A kind of decompressor for compressed natural gas pressure-reducing gas |
| CN106286922B (en) * | 2016-10-27 | 2018-08-17 | 泸州江阳超能燃气有限责任公司 | A kind of pressure reducer for compressed natural gas pressure-reducing gas |
| CN109595369A (en) * | 2017-10-02 | 2019-04-09 | 株式会社日气 | Adjuster |
| CN109595369B (en) * | 2017-10-02 | 2022-03-22 | 株式会社日气 | Regulator |
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