CN208221693U - A kind of axial flow pressure regulator - Google Patents
A kind of axial flow pressure regulator Download PDFInfo
- Publication number
- CN208221693U CN208221693U CN201820658998.8U CN201820658998U CN208221693U CN 208221693 U CN208221693 U CN 208221693U CN 201820658998 U CN201820658998 U CN 201820658998U CN 208221693 U CN208221693 U CN 208221693U
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- China
- Prior art keywords
- valve
- pressure regulator
- valve cylinder
- membrane cover
- suction flange
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Abstract
The utility model discloses a kind of axial flow pressure regulators, including pressure regulator control unit and voltage regulator body, by the fit structure for changing valve cylinder (6) and suction flange (7) in existing voltage regulator body, improve gaseous impurity to gather between valve cylinder (6) and suction flange (7), gaseous impurity is improved to the adverse effect of nonmetallic retaining ring and sealing ring, prevents valve cylinder clamping stagnation and pressure regulator gas leakage；By being changed to existing import end flanges and input end membrane cover structure, the influence that the assembly precision between import end flanges and input end membrane cover is axially moved valve cylinder is eliminated, the machining accuracy of part is reduced, is convenient for part manufacturing；By the combination of change flap and valve port holder structure, so that main valve clack combination dismantling separation from valve port seat is more convenient.
Description
Technical field
The utility model designs a kind of gas pressure regulator, governor, in particular to a kind of axial flow pressure regulator.
Background technique
Pressure regulator is widely used in oil gas transmission & distribution field, its main main function is that the higher gaseous-pressure in upstream is reduced
To the lower pressure of pipe network or pipeline and keep stable, gas pressure regulator, governor can be divided into according to the structure type of pressure regulation restricting element:
By formula pressure regulator, diaphragm type pressure regulator, axial flow pressure regulator etc., effect is automatic adjustment gas outlet pressure, makes it
Stablize and meets requirement in a certain pressure limit to meet user's required pressure value.
The simple working principle of axial flow pressure regulator is as follows:
Under the control of pressure regulator control unit, the conjunction that is formed together by the draught head and spring on epithelium both sides in shell
Power drives valve cylinder to axially move on mandrel line in the housing, realize valve cylinder and the fitting of valve port seat with separate, control gas and lead to
The on-off or aperture of deflector hole on road and valve port seat, to adjust the flow and pressure of pressure regulator downstream line.
There are the following problems for existing axial flow pressure regulator:
1, existing axial flow pressure regulator import end flanges, outlet end membrane cover inside are equipped with sealing ring and nonmetallic retaining ring, close
Seal seals between valve cylinder and import end flanges and between valve cylinder and outlet end membrane cover, and nonmetallic retaining ring is then in valve cylinder
It playing a supportive role between import end flanges, outlet end membrane cover, the gap between valve cylinder and suction flange is small, in use, on
The dust impurities that faint breath body contains easily are full of the gap between valve cylinder and import end flanges, cause valve cylinder clamping stagnation, so that
Valve cylinder gas leakage and pressure regulator failure.
2, the input end of existing axial flow pressure regulator is equipped with import end flanges and input end membrane cover, to guarantee that valve cylinder is axial
Flexibly, the concentricity of valve cylinder axis and import end flanges and input end membrane cover after assembly must satisfy defined requirement for movement,
Therefore all very high to the machining accuracy of import end flanges, input end membrane cover matching part and the requirement of assembly manipulation.
3, existing axial flow pressure regulator, the sealing flap that main valve clack group is closed are influenced to occur molten by impure gas
It is swollen, to cause sealing flap to be sticked together with circumferential metal part, so that maintenance, maintenance main valve clack combination extremely inconvenience.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide one kind and eliminate input end membrane cover, valve cylinder
Support sleeve is had with import end flanges, main valve clack combination is easy the axial flow pressure regulator of dismantling.
The purpose of this utility model is achieved through the following technical solutions:
A kind of axial flow pressure regulator, including pressure regulator control unit and voltage regulator body；
The pressure regulator control unit includes voltage-stablizer, pilot valve and signal pipe；One end of the voltage-stablizer and pressure regulator
The other end of upstream line connection, voltage-stablizer is connected to by pilot valve with signal pipe；
The voltage regulator body includes valve body and valve cylinder, and the valve cylinder is arranged in valve inner, valve body include right membrane cover and
Suction flange, the suction flange and right membrane cover is fastened and connected and is formed between suction flange, right membrane cover and valve cylinder closed
Chamber；
The left end of the valve cylinder is slidably connected with suction flange, and right end is slidably connected with right membrane cover, center outer surface setting
There is step, is fixed with epithelium at the step；The outer rim of the epithelium clamp be fixed on suction flange and right membrane cover junction and
The airtight chamber is separated for left sealed chamber and right sealed chamber, the left sealed chamber is equipped with and pressure regulator downstream line
The venthole one of connection, the right sealed chamber are equipped with the venthole two being connected to signal pipe；
The right end of the right membrane cover is fixedly connected with outlet(discharge) flange and the fixation of the junction of right membrane cover and outlet(discharge) flange has
The valve port seat of deflector hole；
Pressure spring is provided between the epithelium and suction flange；
The valve cylinder and suction flange constitute gas passage, valve cylinder under the action of pressure spring and epithelium both ends pressure difference,
Side-to-side movement is carried out along axial, the on-off or aperture of deflector hole on control gas passage and valve port seat.
It is provided with left pallet and right pallet at left and right sides of the epithelium, the left pallet and right pallet are sleeved on valve cylinder outer circle
It is fixed at the step on valve cylinder outer surface on week and by epithelium grip seal.
The suction flange is from left to right successively arranged first annular recessed grain and second on the contact surface slided with valve cylinder
The recessed grain of annular, the first annular recessed poor bottom install elastic component, support sleeve, institute are equipped between the elastic component and valve cylinder
It states the recessed grain of the second annular and is equipped with sealing ring two and retaining ring two.
Main valve clack combination and flap pressing plate are provided on the valve port seat, the main valve clack combination includes sealing flap and gold
Belong to plate, the sealing flap vulcanization on a metal plate, is equipped with circular trough, is equipped in the circular trough bottom surface on the left of the valve port seat
Sealed groove, is equipped with sealing ring one in the sealed groove, and main valve clack combination is fixed on valve port seat by the flap pressing plate
In circular trough, the valve cylinder is bonded and separates with sealing flap during exercise, realizes water conservancy diversion on control gas passage and valve port seat
The on-off or aperture in hole.
The metal plate of the main valve clack combination is annular metal sheet, and the valve port seat is equipped with dismantling slot, the dismantling slot position
In the boundary position of valve port seat, annular metal sheet and flap pressing plate.
The right membrane cover is equipped with seal groove in the contact surface slided with valve cylinder, and the seal groove is equipped with sealing ring two and retaining ring
One.
It is provided with pilot valve on the pilot valve and adjusts bolt.
The beneficial effects of the utility model are:
1, support sleeve is set between pressure regulator valve cylinder and suction flange sliding contact surface, improves gaseous impurity in valve cylinder
Gathering between suction flange reduces impurity to the adverse effect of nonmetallic retaining ring and sealing ring, prevent valve cylinder clamping stagnation, mention
High pressure regulator sealing effect.
2, by cancelling the design of input end membrane cover, the assembly between existing import end flanges and input end membrane cover is eliminated
The influence that precision is axially moved valve cylinder reduces the machining accuracy of part, easily facilitates part manufacturing and pressure regulator assembling.
3, by the change to main valve clack combination and valve port holder structure, so that separation is disassembled in main valve clack combination from valve port seat
It is more convenient.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model axial flow pressure regulator；
Fig. 2 is the agent structure schematic diagram of the utility model axial flow pressure regulator；
Fig. 3 is that valve cylinder and suction flange are slidably matched face enlarged diagram；
Fig. 4 is valve port seat partial enlargement diagram；
In figure, 1- voltage-stablizer；2- pilot valve；3- signal pipe；4- pilot valve adjusts bolt；5- pressure spring；6- valve cylinder；
7- suction flange；8- epithelium；9- membrane cover fastening nut；10- membrane cover fastening bolt；The right pallet of 11-；The right membrane cover of 12-；
13- pallet fastening screw；14- outlet(discharge) flange；15- valve port seat；The combination of 16- main valve clack；17- flap pressing plate；
18- flap pressing plate fastening screw；19- sealing ring one；20- outlet(discharge) flange fastening bolt；21- retaining ring one；22- sealing
Circle two；The left pallet of 23-；24- retaining ring two；25- support sleeve；26- elastic component；27- disassembles slot.
Specific embodiment
The technical solution of the utility model, but the protection scope of the utility model are described in further detail with reference to the accompanying drawing
It is not limited to as described below.
A kind of axial flow pressure regulator of the utility model as shown in Fig.1 and Fig.2, by voltage-stablizer 1, pilot valve 2, signal pipe 3,
Pilot valve adjust bolt 4, pressure spring 5, valve cylinder 6, suction flange 7, epithelium 8, membrane cover fastening nut 9, membrane cover fastening bolt 10,
Right pallet 11, right membrane cover 12, pallet fastening screw 13, outlet(discharge) flange 14, valve port seat 15, main valve clack combination 16, flap pressing plate 17,
Flap pressing plate fastening screw 18, sealing ring 1, outlet(discharge) flange fastening bolt 20, retaining ring 1, sealing ring 2 22, left pallet
23, retaining ring 2 24, support sleeve 25, elastic component 26 and dismantling slot 27 form.
Wherein sealing ring 1 is placed in 15 seal groove of valve port seat, and main valve clack combination 16 is vulcanized by sealing flap in annular gold
Belong on plate, then be fixed on valve port seat 15 after being pushed down with flap pressing plate 17 with flap pressing plate fastening screw 18；Valve port seat 15 is installed
Between right membrane cover 12 and outlet(discharge) flange 14, valve port seat 15 connects together with the right outlet(discharge) flange fastening bolt 20 of membrane cover 12；Gear
It encloses one 21, sealing ring 2 22 to be mounted in the seal groove of right membrane cover 12, elastic component 26, support sleeve 25, retaining ring 2 24, sealing ring two
22 are mounted in the first annular recessed grain of suction flange 7 and the recessed grain of the second annular；Epithelium 8 is housed between right pallet 11, left pallet 23,
Right pallet 11 and left pallet 23 are installed together with pallet fastening screw 13 with valve cylinder 6,；6 input end of valve cylinder is the same as in suction flange 7
Support sleeve 25 and retaining ring 2 24 be slidably matched, 6 outlet end of valve cylinder is slidably matched with the retaining ring 1 in right membrane cover 12；Epithelium 8
Outer rim is mounted between suction flange 7 and right membrane cover 12, and 5 one end of pressure spring is fixed on suction flange 7, and one end is fixed on a left side
On pallet 23, the membrane cover fastening bolt 10 of suction flange 7 is connected with membrane cover fastening nut 9 with right membrane cover 12；2 input end of pilot valve
It is connected by screw thread with voltage-stablizer 1,2 outlet end of pilot valve is connected by signal pipe 3 with right membrane cover 12, and dismantling slot (27) is located at valve
The boundary position of mouth seat (15), annular metal sheet and flap pressing plate.
The work of the present embodiment is as follows:
Epithelium 8 and right membrane cover 12 form right sealed chamber, and right sealed chamber passes through signal pipe 3 and 2 outlet end phase of pilot valve
Even, right sealed chamber gas pressure is the starting pressure Pm that pilot valve 2 is adjusted；Epithelium 8 and suction flange 7 form left seal chamber
Room, left sealed chamber are connected by pipeline with pressure regulator downstream pipe, and left sealed chamber gas pressure is after pilot valve 2 is adjusted
Line pressure downstream P2.Upstream gas enters 2 input end of pilot valve by voltage-stablizer 1.The adjusting bolt 4 on pilot valve 2 is unclamped,
The channel that upstream gas enters right sealed chamber is closed, and right sealed chamber gas passage is connected with pressure regulator downstream line, at this time
Starting pressure Pm is equal with line pressure downstream P2, and valve cylinder 6 is in the closed position under the action of pressure spring 5.Tighten commander
Adjusting bolt 4 on device 2, the gas of 2 input end of pilot valve progress into the right sealed chamber that epithelium 8 and right membrane cover 12 are formed,
Starting pressure Pm is gradually increased, when the difference of epithelium two sides starting pressure Pm and line pressure downstream P2 acts on the power on valve cylinder 6
When acting on the resultant force on valve cylinder 6 greater than pressure spring 5 and frictional resistance, valve cylinder 6 axially moves toward 7 direction of suction flange,
The gap that valve cylinder 6 is combined with main valve clack between 16 is gradually increased, the downward outbound pipeline conveying of upstream gas medium, until on valve cylinder 6
Suffered active force reaches new balance, and the pressure after adjusting is just outlet pressure P2.
In the present embodiment to support sleeve 25 is arranged between pressure regulator valve cylinder 6 and suction flange 7, improves gaseous impurity and exist
Gather between valve cylinder 6 and suction flange 7, reduces impurity to the adverse effect of retaining ring 2 24 and sealing ring 2 22, prevent valve cylinder
Clamping stagnation improves pressure regulator sealing effect.
In the present embodiment pressure regulator input end only pass through suction flange 7, right membrane cover 12 and valve cylinder 6 can closing chamber
Room, by reducing the design of existing input end membrane cover, eliminates existing import to provide the power source of the axial movement of valve cylinder 6
The influence that assembly precision between end flanges and input end membrane cover is axially moved valve cylinder, reduces the machining accuracy of part, more
It is assembled convenient for part manufacturing and pressure regulator.
The design of setting dismantling slot 27 in main valve clack combination in the present embodiment 16 and valve port seat 15, so that main valve clack combines
16 are easier to disassemble separation from valve port seat 15.
Claims (7)
1. a kind of axial flow pressure regulator, it is characterised in that: including pressure regulator control unit and voltage regulator body；
The pressure regulator control unit includes voltage-stablizer (1), pilot valve (2) and signal pipe (3)；One end of the voltage-stablizer (1)
It is connected to pressure regulator upstream line, the other end of voltage-stablizer (1) is connected to by pilot valve (2) with signal pipe (3)；
The voltage regulator body includes valve body and valve cylinder (6), and the valve cylinder (6) is arranged in valve inner, and valve body includes right membrane cover
(12) and suction flange (7), the suction flange (7) and the right membrane cover (12) is fastened and connected and suction flange (7), right membrane cover
(12) airtight chamber is formed between valve cylinder (6)；
The left end of the valve cylinder (6) is slidably connected with suction flange (7), and right end is slidably connected with right membrane cover (12), middle part appearance
Face is provided with step, and epithelium (8) are fixed at the step；The outer rim of the epithelium (8) clamp be fixed on suction flange (7) and
Right membrane cover (12) junction, and the airtight chamber is separated for left sealed chamber and right sealed chamber, the left sealed chamber
Equipped with the venthole one being connected to pressure regulator downstream line, the right sealed chamber is equipped with the venthole being connected to signal pipe (3)
Two；
The right end of the right membrane cover (12) is fixedly connected with the knot of outlet(discharge) flange (14) and right membrane cover (12) and outlet(discharge) flange (14)
The fixed valve port seat (15) for having deflector hole at conjunction；
Pressure spring (5) are provided between the epithelium (8) and suction flange (7)；
The valve cylinder (6) and suction flange (7) constitute gas passage, and valve cylinder (6) is in (8) two side pressure of pressure spring (5) and epithelium
Under the action of difference, carry out side-to-side movement along axial, control on-off along gas passage and valve port seat (15) between deflector hole or
Aperture.
2. a kind of axial flow pressure regulator according to claim 1, it is characterised in that: setting at left and right sides of the epithelium (8)
There are left pallet (23) and right pallet (11), the left pallet (23) and right pallet (11) are sleeved on valve cylinder (6) excircle and will
Epithelium (8) grip seal is fixed at the step on valve cylinder (6) outer surface.
3. a kind of axial flow pressure regulator according to claim 1, it is characterised in that: the suction flange (7) with valve cylinder
(6) first annular recessed grain and the second recessed grain of annular, the first annular recessed grain are from left to right successively arranged on the contact surface slided
Elastic component (26) are installed in bottom, are equipped between the elastic component and valve cylinder (6) support sleeve (25), the recessed grain of second annular
Equipped with sealing ring two (22) and retaining ring two (24).
4. a kind of axial flow pressure regulator according to claim 1, it is characterised in that: be provided with master on the valve port seat (15)
Flap combines (16) and flap pressing plate (17), and the main valve clack combination (16) includes sealing flap and metal plate, the sealing valve
Valve vulcanizes on a metal plate, and circular trough is equipped on the left of the valve port seat (15), is equipped with sealed groove in the circular trough bottom surface,
Sealing ring one (19) is equipped in the sealed groove, main valve clack combination (16) is fixed on valve port seat by the flap pressing plate (17)
In circular trough, the valve cylinder (6) is bonded and separates with sealing flap during exercise, controls and leads on gas passage and valve port seat (15)
The on-off or aperture of discharge orifice.
5. a kind of axial flow pressure regulator according to claim 4, it is characterised in that: the metal of the main valve clack combination (16)
Plate is annular metal sheet, and the valve port seat (15) is provided with dismantling slot (27)；The dismantling slot (27) is located at valve port seat (15), ring
The boundary position of shape metal plate and flap pressing plate.
6. a kind of axial flow pressure regulator according to claim 1, it is characterised in that: the right membrane cover (12) with valve cylinder
(6) contact surface slided is equipped with seal groove, and the seal groove is equipped with sealing ring two (22) and retaining ring one (21).
7. a kind of axial flow pressure regulator according to claim 1, it is characterised in that: be provided with pilot valve on the pilot valve
It adjusts bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658998.8U CN208221693U (en) | 2018-05-04 | 2018-05-04 | A kind of axial flow pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658998.8U CN208221693U (en) | 2018-05-04 | 2018-05-04 | A kind of axial flow pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221693U true CN208221693U (en) | 2018-12-11 |
Family
ID=64510535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820658998.8U Expired - Fee Related CN208221693U (en) | 2018-05-04 | 2018-05-04 | A kind of axial flow pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696515A (en) * | 2020-12-25 | 2021-04-23 | 江苏盛伟燃气科技有限公司 | Main valve of pressure regulator |
-
2018
- 2018-05-04 CN CN201820658998.8U patent/CN208221693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696515A (en) * | 2020-12-25 | 2021-04-23 | 江苏盛伟燃气科技有限公司 | Main valve of pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20210504 |