CN109764148A - Indirect-action type pressure regulator - Google Patents
Indirect-action type pressure regulator Download PDFInfo
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- CN109764148A CN109764148A CN201711099003.5A CN201711099003A CN109764148A CN 109764148 A CN109764148 A CN 109764148A CN 201711099003 A CN201711099003 A CN 201711099003A CN 109764148 A CN109764148 A CN 109764148A
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- valve
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Abstract
The invention discloses a kind of indirect-action type pressure regulators, can simplify structure and improve valve inner airflow ability.The pressure regulator includes the intracorporal diaphragm of valve, inlet chamber, outlet chamber and valve seat, further includes the cage type body connected below diaphragm and with valve body, and the top end face of cage type body and the lower surface of diaphragm form adjustable sealing channel；The lower end of cage type body is located in valve seat and is provided with the soft seal ring for forming soft seal pair with valve seat；Inlet chamber passes sequentially through the interior bone of cage type body and adjustable sealing channel is connected to outlet chamber；Diaphragm is located at the part on the outside of cage type body and is supported by the support construction below diaphragm is arranged in.Due to eliminating spool, structure is simplified, and using cage type body, the gas of inlet chamber can flow directly into outlet chamber by the cooperation of cage type body and diaphragm, significantly improves airflow ability.
Description
Technical field
The present invention relates to a kind of indirect-action type pressure regulators, between applying in a kind of defeated delivery system of gas
Connect action type pressure regulator.
Background technique
With the rapid development of our national economy, send the requirement of equipment higher and higher fluid supply.Especially China
The high speed development of gas gas, to the operation of relevant device whether steady, negotiability and volume size requirements it is higher,
Equipment failure rate is required lower.
The structure of conventional indirect-action type pressure regulator generally comprises the diaphragm of valve body and valve inner setting, on diaphragm
Chamber, diaphragm cavity of resorption and the cage type cover being arranged in below diaphragm cavity of resorption, are typically provided with spool in the cage type cover, on cage type cover
It is provided with the venthole being connected to outlet chamber, the gas in inlet chamber is controlled from cage type cover by moving up and down for spool
Venthole flows into outlet chamber, and due to the outer wall limited area of cage type cover, the venthole being arranged thereon is smaller, which limits
Gas negotiability.Such as Chinese patent 200720078869.3 discloses a kind of indirect-action type pressure regulator, this kind of pressure regulator
Structure is complicated for inner valve body, and assembly and maintenance are extremely inconvenient, and the airflow ability of valve inner is smaller.
By being analyzed above it is found that although conventional indirect-action type pressure regulator can play the role of pressure regulation, due to routine
Pressure regulator is in order to increase negotiability, it is necessary to increase volume, this results in narrow place and requires larger stream
When logical ability, conventional pressure regulator is unable to satisfy actual operation requirements.
Summary of the invention
The technical problems to be solved by the invention and the technical assignment of proposition are improved to the prior art, and one kind is provided
Structure can be simplified and improve the indirect-action type pressure regulator of valve inner airflow ability.
The technical solution adopted by the present invention to solve the technical problems is: indirect-action type pressure regulator, including valve are intracorporal
Diaphragm, inlet chamber, outlet chamber and valve seat further include the cage type body connected below the diaphragm and with valve body, cage type
The top end face of body and the lower surface of diaphragm form adjustable sealing channel；The lower end of above-mentioned cage type body is located in valve seat,
Cage type body lower end is provided with the soft seal ring that soft seal pair is formed with valve seat；The inside that inlet chamber passes sequentially through cage type body is logical
Hole and adjustable sealing channel are connected to outlet chamber；Diaphragm is located at the part on the outside of cage type body by being arranged in below diaphragm
Support construction support.
Further, the support construction is the annular disk body that cage type body upper end is arranged in.
Further, being provided with one group of valve port on the annular disk body, outlet chamber is connected to by the valve port with diaphragm.
Further, the valve port is uniformly distributed along the circumferential direction of cage type body.
Further, the outer rim of the annular disk body is connected with valve body.
Further, being provided with the soft seal ring for forming soft seal pair with valve body in the outer rim of the annular disk body.
Further, the top end face of the cage type body is arc surface.
The beneficial effects of the present invention are: compared with prior art, the present invention is due to eliminating spool, so that structure obtains
Simplify, also, when voltage regulator operation of the invention, gas flows to diaphragm through the through-hole of inlet chamber, cage type body, and air-flow is through film
Piece rear steering flows directly into outlet chamber, and gas negotiability significantly improves.
Detailed description of the invention
Fig. 1 is the schematic diagram of the valve inner of indirect-action type pressure regulator of the invention；
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 is the schematic diagram of adjuster and pilot valve；
Fig. 4 is the view in the direction B of Fig. 3；
Fig. 5 is cage type body and annular disk body connection relationship diagram；
Fig. 6 is the schematic diagram of annular disk body and valve port.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figures 1 to 6, indirect-action type pressure regulator of the invention, including in valve body 5 diaphragm 10, inlet chamber 32,
Outlet chamber 31 and valve seat 33 further include positioned at the cage type body 7 diaphragm 10 lower section and be connected with valve body 5, cage type body 7
Top end face 34 and diaphragm 10 lower surface formed adjustable sealing channel；The lower end of above-mentioned cage type body 7 is located at valve seat 33
Interior, 7 lower end of cage type body is provided with the soft seal ring 6 that soft seal pair is formed with valve seat 33；Inlet chamber 32 passes sequentially through cage type set
The interior bone 1 of body 7 and adjustable sealing channel are connected to outlet chamber 31；Diaphragm 10 is located at the part in 7 outside of cage type body
By the support construction support below diaphragm 10 is arranged in.Using the above structure, the part that diaphragm 10 is located on the outside of cage type body 7 is straight
It connects and is connected to outlet chamber 31.In addition, same as the prior art, inlet chamber 32 of the invention is connected with signal pipe 19, signal
Pipe 19 is connected with the air inlet for the flow controller 23 being arranged in outside valve body, a gas outlet of flow controller and the epicoele 35 of diaphragm 10
It is connected, another outlet is connected with pilot valve 22；Diaphragm 10 is by the reset spring 14 and inlet chamber inside top locating shaft 13
32 and the pressure difference of epicoele 35 drive jointly, can move up and down.In order to reduce damage of the top end face to diaphragm of cage type body
Wound, the top end face 34 of the cage type body 7 are arc surface.
When indirect-action type pressure regulator of the invention is in close state, the top end face 34 of cage type body 7 and diaphragm
Soft seal pair is formed between 10 lower surface, at this moment, above-mentioned adjustable sealing channel is in close state, and gas can not be by air inlet
Chamber 32 flows into outlet chamber 31 through the through-hole 1 inside cage type body 7.When indirect-action type pressure regulator of the invention is in use state
When, the gas push diaphragm 10 in the through-hole 1 of cage type body 7 rises, and then makes the lower surface of diaphragm 10 and the top of cage type body 7
It holds end face 34 to separate, and then keeps above-mentioned adjustable sealing channel in the open state, inlet chamber 32 is by through-hole 1 and is adjusted
Sealed passage is connected to outlet chamber 31, and when the pressure reduction in the outlet pipe that outlet chamber 31 connects, pilot valve 22 believes this
The epicoele 35 of diaphragm 10 number is fed back to through flow controller 23, the pressure of the epicoele 35 of diaphragm 10 declines therewith, at this point, under diaphragm 10
Cavity pressure (gas pressure i.e. in the through-hole 1 of cage type body 7) is greater than upper cavity pressure, so that diaphragm 10 moves upwards, and then will
The distance between top end face of diaphragm 10 and cage type body 1 increases so that through-hole 1 of more gases through cage type body 7 and
Adjustable sealing channel flows to outlet chamber 31, and the pressure in the outlet pipe of the connection of outlet chamber 31 is supplemented with this.Conversely, working as outlet
Chamber 31 connect outlet pipe in pressure rise when, the pressure of the epicoele 35 of diaphragm 10 will rise, and then lead to diaphragm 10
It moves downward, the distance between top end face 34 of diaphragm 10 and cage type body 7 reduces, and flows through the gas in adjustable sealing channel
It reduces, the pressure in outlet pipe that outlet chamber 31 connects decreases.
The above-mentioned support construction for being used to support diaphragm 10 can be that the supporting block of valve inner, preferred embodiment is arranged in
Be: the support construction is the annular disk body 3 that 7 upper end of cage type body is arranged in.Since the area of diaphragm 10 is larger, using annular
Disk body 3 can play good supporting role to diaphragm 10, when pressure regulator is in close state, since diaphragm 10 is by reset bullet
The effect of spring 14 generates the trend deformed downwards, can guarantee formed between diaphragm 10 and the top end face 34 of cage type body 7 in this way
Good soft seal pair prevents gas from circulating, but can make 10 unbalance stress of diaphragm, so needing support construction support diaphragm
10, avoid it from damaging due to unbalance stress, and annular disk body 3 then can effectively avoid diaphragm 10 and damage since bearing up-down force is uneven
It is bad.
In order to further gas is convenient for circulate, increases gas negotiability, be provided with one group of valve port on the annular disk body 3
2, outlet chamber 31 is connected to by the valve port 2 with diaphragm 10.In this way, gas can flow into outlet chamber 31 through valve port 2.In order to make in valve body
The gas circulation in portion is uniformly and stable gas pressure, the valve port 2 are uniformly distributed along the circumferential direction of cage type body 7.On the basis of the above, in order to make
Annular disk body can preferably support diaphragm, and the outer rim of the annular disk body 3 is connected with valve body 5, when pressure regulator of the invention
When being in close state, diaphragm 10 can be by the excellent support of the disk of annular disk body 3.Further, in order to make in valve body
Portion guarantees good air-tightness, is provided with the soft seal ring 6 that soft seal pair is formed with valve body 5 in the outer rim of the annular disk body 3.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (7)
1. indirect-action type pressure regulator, including diaphragm (10), inlet chamber (32), outlet chamber (31) and the valve seat in valve body (5)
(33), it is characterized in that: further including the cage type body (7) connected below the diaphragm (10) and with valve body (5), cage type body
(7) lower surface of top end face (34) and diaphragm (10) forms adjustable sealing channel；The lower end position of above-mentioned cage type body (7)
In valve seat (33), cage type body (7) lower end is provided with the soft seal ring (6) that soft seal pair is formed with valve seat (33)；Inlet chamber
(32) interior bone (1) and adjustable sealing channel for passing sequentially through cage type body (7) are connected to outlet chamber (31)；Diaphragm
(10) it is located at the part on the outside of cage type body (7) to be supported by the support construction below diaphragm (10) is arranged in.
2. indirect-action type pressure regulator as described in claim 1, it is characterized in that: the support construction is to be arranged in cage type body
(7) the annular disk body (3) of upper end.
3. indirect-action type pressure regulator as claimed in claim 2, it is characterized in that: being provided with one group on the annular disk body (3)
Outlet chamber (31) is connected to by valve port (2), the valve port (2) with diaphragm (10).
4. indirect-action type pressure regulator as claimed in claim 3, it is characterized in that: week of the valve port (2) along cage type body (7)
To uniformly.
5. indirect-action type pressure regulator as claimed in claim 3, it is characterized in that: the outer rim and valve body of the annular disk body (3)
(5) it is connected.
6. indirect-action type pressure regulator as claimed in claim 5, it is characterized in that: being arranged in the outer rim of the annular disk body (3)
There is the soft seal ring (6) that soft seal pair is formed with valve body (5).
7. indirect-action type pressure regulator as described in claim 1, it is characterized in that: the top end face of the cage type body (7)
It (34) is arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099003.5A CN109764148A (en) | 2017-11-09 | 2017-11-09 | Indirect-action type pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099003.5A CN109764148A (en) | 2017-11-09 | 2017-11-09 | Indirect-action type pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109764148A true CN109764148A (en) | 2019-05-17 |
Family
ID=66449665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711099003.5A Pending CN109764148A (en) | 2017-11-09 | 2017-11-09 | Indirect-action type pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109764148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944789A (en) * | 2021-11-04 | 2022-01-18 | 合肥市久环给排水燃气设备有限公司 | Indirect action type gas pressure regulator |
-
2017
- 2017-11-09 CN CN201711099003.5A patent/CN109764148A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944789A (en) * | 2021-11-04 | 2022-01-18 | 合肥市久环给排水燃气设备有限公司 | Indirect action type gas pressure regulator |
| CN113944789B (en) * | 2021-11-04 | 2024-01-26 | 合肥市久环给排水燃气设备有限公司 | Indirect action type gas pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190517 |