CN206669053U - A kind of bellows balanced type is relied on oneself pressure-difference valve - Google Patents
A kind of bellows balanced type is relied on oneself pressure-difference valve Download PDFInfo
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- CN206669053U CN206669053U CN201720290387.8U CN201720290387U CN206669053U CN 206669053 U CN206669053 U CN 206669053U CN 201720290387 U CN201720290387 U CN 201720290387U CN 206669053 U CN206669053 U CN 206669053U
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- valve
- bellows
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- balanced type
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Abstract
Relied on oneself pressure-difference valve the utility model discloses a kind of bellows balanced type, valve port is provided with left and right sides of valve seat, the valve seat is provided with valve element, valve element is connected with valve rod, valve rod upper end both sides are provided with bellows, both sides are provided with spring on the outside of bellows, spring is provided with the outside of lower stem portion, bellows uses stainless steel, stem bottom is provided with diaphragm, and the bottom of valve seat is connected by pressure guiding pipe with valve port, energy-saving type self-control system of the utility model without the additional balanced type energy, cost of equipment is low, and suitable for explosive atmosphere, simple in construction, maintenance workload is small.
Description
Technical field
Utility model is related to a kind of bellows balanced type and relied on oneself pressure-difference valve, belongs to pressure-difference valve technical field.
Background technology
Self-operated differential pressure regulaitng valve is that power source introduces executing agency using by tune medium self-energy without external energy
Spool position is controlled, changes the pressure difference and flow at both ends, makes upstream pressure stable, has and be active in one's movements, good airproof performance, pressure is set
Pinpoint the advantages that wave force is small, Self-operated differential pressure regulaitng valve is widely used in civilian industry and oil, chemical industry, electric power, metallurgy, light
The industrial circles such as spinning, pressure-reduced and-regulated is carried out to media such as steam, liquid, agent gas combustion gas or pressure release voltage stabilizing automatically controls.
Utility model content
Purpose of utility model：Have that complicated, cost of equipment is high, maintenance work is big asks in the prior art to overcome
Topic, the utility model provide a kind of bellows balanced type and relied on oneself pressure-difference valve.
Technical scheme：To achieve the above object, the utility model provide a kind of bellows balanced type rely on oneself pressure difference regulation
Valve, including valve element, valve seat, valve rod, bellows, spring, pressure guiding pipe, diaphragm, valve port, the valve seat left and right sides is provided with valve port, described
Valve seat is provided with valve element, and valve element is connected with valve rod, and valve rod upper end both sides are provided with bellows, and both sides are provided with spring on the outside of bellows,
Spring is provided with the outside of lower stem portion, bellows uses stainless steel, and stem bottom is provided with diaphragm, and the bottom of valve seat is by drawing
Pressure pipe is connected with valve port.
The utility model has advantages below：
1st, the energy-saving type self-control system without the additional balanced type energy, cost of equipment is low, suitable for explosive atmosphere；
2nd, it is simple in construction, maintenance workload is small；
3rd, because bellows ensure that valve body, valve leakage rate is small when closed, and the active force of valve element is greatly reduced so that
Regulating valve is quick on the draw, control accuracy is higher, it is allowed to which pressure difference is larger.
Brief description of the drawings
Fig. 1 is that the card bellows balanced type of the present embodiment is relied on oneself the structural representation of pressure-difference valve；
In figure：Valve element -1, valve seat -2, valve rod -3, bellows -4, spring -5, pressure guiding pipe -6, diaphragm -7, valve port -8.
Embodiment
It is further elaborated below in conjunction with accompanying drawing and by specific embodiment to the utility model, it should be pointed out that：For this
For the those of ordinary skill of technical field, on the premise of the utility model principle is not departed from, to of the present utility model various
The modification of the equivalent form of value falls within the application appended claims limited range.
Embodiment 1：
A kind of bellows balanced type as shown in Figure 1 is relied on oneself pressure-difference valve, including valve element 1, valve seat 2, valve rod 3, bellows
4th, spring 5, pressure guiding pipe 6, diaphragm 7, valve port 8, the left and right sides of valve seat 2 are provided with valve port 8, and the valve seat 2 is provided with valve element 1,
The valve element 1 is connected with valve rod 3, and the upper end both sides of valve rod 3 are provided with bellows 4, and the outside both sides of bellows 4 are provided with spring
5, the lower part of valve rod 3 outside is provided with spring 5, and the bellows 4 uses stainless steel, is not easy to get rusty, due to bellows
Ensure that valve body, valve leakage rate is small when closed, and the active force of valve element is greatly reduced so that regulating valve is quick on the draw, controls essence
Degree is higher, it is allowed to which pressure difference is larger, and the bottom of valve rod 3 is provided with diaphragm 7, and the bottom of the valve seat 2 passes through pressure guiding pipe 6 and valve port 8
Connection, energy-saving type self-control system of the utility model without the additional balanced type energy, cost of equipment is low, suitable for explosive ring
Border, simple in construction, maintenance workload is small.
Claims (2)
- The pressure-difference valve 1. a kind of bellows balanced type is relied on oneself, it is characterised in that including valve element, valve seat, valve rod, bellows, bullet Spring, pressure guiding pipe, diaphragm, the mouth of pipe, the valve seat left and right sides are provided with valve port, and the valve seat is provided with valve element, the valve element and valve Bar connects, and valve rod upper end both sides are provided with bellows, and both sides are provided with spring on the outside of the bellows, and the stem lower portion is exceptionally Side is provided with spring, and the stem bottom is provided with diaphragm, and the bottom of the valve seat is connected by pressure guiding pipe with valve port.
- 2. a kind of bellows balanced type is relied on oneself pressure-difference valve according to claim 1, it is characterised in that the bellows is adopted Use stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290387.8U CN206669053U (en) | 2017-03-23 | 2017-03-23 | A kind of bellows balanced type is relied on oneself pressure-difference valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290387.8U CN206669053U (en) | 2017-03-23 | 2017-03-23 | A kind of bellows balanced type is relied on oneself pressure-difference valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206669053U true CN206669053U (en) | 2017-11-24 |
Family
ID=60372791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720290387.8U Expired - Fee Related CN206669053U (en) | 2017-03-23 | 2017-03-23 | A kind of bellows balanced type is relied on oneself pressure-difference valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206669053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
-
2017
- 2017-03-23 CN CN201720290387.8U patent/CN206669053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
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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: 20171124 Termination date: 20180323 |