CN203549021U - High-pressure directly operated type safe overflow valve - Google Patents
High-pressure directly operated type safe overflow valve Download PDFInfo
- Publication number
- CN203549021U CN203549021U CN201320621808.2U CN201320621808U CN203549021U CN 203549021 U CN203549021 U CN 203549021U CN 201320621808 U CN201320621808 U CN 201320621808U CN 203549021 U CN203549021 U CN 203549021U
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- Prior art keywords
- valve
- pressure
- spring
- valve body
- base
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- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000005242 forging Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 230000033228 biological regulation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to a high-pressure directly operated type safe overflow valve. The overflow valve mainly comprises a valve body, a valve base, a valve seat, a valve clack and a valve cover, wherein the valve seat is arranged in the valve body; the valve clack is arranged in the valve seat; the valve base is arranged on the lower part of the valve seat; the valve cover is arranged on the valve body; a spring is arranged in the valve cover; the lower part of the spring is correspondingly contacted with the valve clack; the lower end opening of the valve base is an inlet end; the side surface of the valve body is an outlet end. The overflow valve has the beneficial effects that the pressure adjustment range of the structure is wide, i.e. when the pressure-adjusting spring adjusts in a specified range, the pressure of a system can be stably increased or reduced, the difference between the highest setting pressure and the lowest setting pressure is high when the pressure is not suddenly changed or is not delayed, the pressure-setting precision is high, the pressure is controlled to be kept constant and is slightly changed with the change of the flow rate of the valve, the opening and closing characteristic of the overflow valve is good, the change of the pressure is stable, the pressure of the system in the whole action process can be stably increased and reduced, and the phenomena of sudden change and delaying of the pressure are not caused.
Description
Technical field
The utility model relates to the structure of safety valve, for the pipeline of high-pressure water injecting pump station, and as voltage stabilizing and overpressure protector, especially a kind of high voltage straight moving safety overflow valve.
Background technique
Conventionally the valve of direct dynamic structure is subject to spring and valve arrangement size to limit, be difficult to use and unload the stream flow shortcoming large to pressure regulation deviation effects, the shortcoming that valve reaction velocity is slow, manufacture cost is high, operational safety is poor of leading type structure at large flow or high pressure occasion; The situations such as overflow characteristic curve poor repeatability, the sticking phenomenon of above-mentioned two kinds of structure valves of while when opening, closing is serious, the pressure dead band of valve is larger.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, a kind of highi degree of accuracy is provided, reveals little high voltage straight moving safety overflow valve.
The utility model solves the technological scheme that its technical problem adopts: this high voltage straight moving safety overflow valve, mainly comprise valve body, valve base, valve seat, flap and valve gap, in valve body, be provided with valve seat, in valve seat, be provided with flap, valve seat bottom is provided with valve base, valve body top is provided with valve gap, is provided with spring in valve gap, the contact corresponding with flap of spring bottom; The lower end mouth place of described valve base is entry end, and the side of valve body is outlet end.
The lower end mouth place of the described valve base screwed flange that has been threaded.
The top of described spring is provided with Adjusting bolt Adjusting screw.
The outer cover of described Adjusting bolt Adjusting screw has bonnet.
Described valve body, valve base, valve seat, flap are forging process and form.
The effect that the utility model is useful is: structural pressure regulation range model of the present utility model is large, be that pressure adjusting spring is when regulate within the limits prescribed, system pressure can rise reposefully or decline, and the difference of the minimum and maximum set pressure of pressure during without kick and hysteresis phenomenon is large, setting-pressure accuracy is high, it is constant that pilot pressure keeps, the minor variations with the changes in flow rate by valve, open and shut characteristic is good, pressure changes steadily, whole course of action system pressure can rise reposefully and decline, and pressure occurs without kick and hysteresis phenomenon.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals: bonnet 1, Adjusting bolt Adjusting screw 2, spring 3, valve gap 4, flap 5, valve seat 6, valve body 7, valve base 8, screwed flange 9, entry end 10, outlet end 11.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in the figure, this high voltage straight moving safety overflow valve, mainly comprise valve body 7, valve base 8, valve seat 6, flap 5 and valve gap 4, in valve body 7, be provided with valve seat 6, in valve seat 6, be provided with flap 5, valve seat 6 bottoms are provided with valve base 8, the lower end mouth place of valve base 8 screwed flange 9 that has been threaded, valve body 7 tops are provided with valve gap 4, in valve gap 4, be provided with spring 3, spring 3 bottoms and the corresponding contact of flap 5, the top of spring 3 is provided with Adjusting bolt Adjusting screw 2, the elastic force scope of energy Regulation spring 3, the outer cover of Adjusting bolt Adjusting screw 2 has bonnet 1.The lower end mouth place of valve base 8 is entry end 10, and the side of valve body 7 is outlet end 11.Valve body 7, valve base 8, valve seat 6, flap 5 are forging process and form, and bearing capacity is strong, good rigidly.
The utility model utilization is changed the decrement of spring as signal by governor pressure, thereby the change flow area of valve port and the spillway discharge of system reach level pressure object.When system pressure raises, flap 5 rises, and valve port flow area increases, and spillway discharge increases, and then system pressure is declined.Relief valve inside is the basic principle of its level pressure effect by the balance of flap 5 and this negative feedback of motion formation.Flap 5 is divided into hyperbaric chamber and low-pressure cavity by valve seat 6 inner chambers, and the elastic force that acts on flap 5 upward pressures and spring 3 balances each other, to control the switching motion of flap 5.
Structure setting-pressure accuracy of the present utility model is high, and it is high that sensitivity is wanted, stable working and friction and noise, good seal when valve cuts out, leak littlely, the negative feedback that the balance by flap 5 and motion form, makes system pressure rise reposefully and to decline, work more steady, simple in structure, reliable, economically feasible, constant-pressure deviation ± 2%, minimum regime flow is rated flow 10%, and all the other indexs meet definitely requirement.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. a high voltage straight moving safety overflow valve, mainly comprise valve body (7), valve base (8), valve seat (6), flap (5) and valve gap (4), it is characterized in that: in valve body (7), be provided with valve seat (6), in valve seat (6), be provided with flap (5), valve seat (6) bottom is provided with valve base (8), valve body (7) top is provided with valve gap (4), is provided with spring (3) in valve gap (4), spring (3) bottom and the corresponding contact of flap (5); The lower end mouth place of described valve base (8) is entry end (10), and the side of valve body (7) is outlet end (11).
2. high voltage straight moving safety overflow valve according to claim 1, is characterized in that: the lower end mouth place of described valve base (8) screwed flange (9) that has been threaded.
3. high voltage straight moving safety overflow valve according to claim 1, is characterized in that: the top of described spring (3) is provided with Adjusting bolt Adjusting screw (2).
4. high voltage straight moving safety overflow valve according to claim 3, is characterized in that: the outer cover of described Adjusting bolt Adjusting screw (2) has bonnet (1).
5. high voltage straight moving safety overflow valve according to claim 1, is characterized in that: described valve body (7), valve base (8), valve seat (6), flap (5) are forging process and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320621808.2U CN203549021U (en) | 2013-10-09 | 2013-10-09 | High-pressure directly operated type safe overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320621808.2U CN203549021U (en) | 2013-10-09 | 2013-10-09 | High-pressure directly operated type safe overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549021U true CN203549021U (en) | 2014-04-16 |
Family
ID=50467140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320621808.2U Expired - Lifetime CN203549021U (en) | 2013-10-09 | 2013-10-09 | High-pressure directly operated type safe overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387782A (en) * | 2016-05-06 | 2017-11-24 | Toto株式会社 | Flow rate regulating valve |
-
2013
- 2013-10-09 CN CN201320621808.2U patent/CN203549021U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387782A (en) * | 2016-05-06 | 2017-11-24 | Toto株式会社 | Flow rate regulating valve |
| CN107387782B (en) * | 2016-05-06 | 2019-07-12 | Toto株式会社 | Flow rate regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |