CN201462132U - Self-adaptable constant flow control valve - Google Patents
Self-adaptable constant flow control valve Download PDFInfo
- Publication number
- CN201462132U CN201462132U CN2009200780597U CN200920078059U CN201462132U CN 201462132 U CN201462132 U CN 201462132U CN 2009200780597 U CN2009200780597 U CN 2009200780597U CN 200920078059 U CN200920078059 U CN 200920078059U CN 201462132 U CN201462132 U CN 201462132U
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- valve
- flow control
- self
- valve body
- control valve
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- Expired - Fee Related
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Abstract
The utility model aims at providing a self-adaptable constant flow control valve which has simple structure and good process performance and comprises a valve body and a valve body, wherein the valve body is formed in such a way that a spring is sleeved inside a valve seat. The self-adaptable constant flow control valve is characterized in that a circular hole (4) and a double-arc line hole (5) which are both liquid inlet holes are arranged on the lateral surface of a circular tube of a movable built-in notching circular tube valve core (1); one end of a spring connecting mechanism (6) is connected with the movable built-in notching circular tube valve core (1), and the other end of the spring connecting mechanism (6) is fixed with a fixed sleeve valve seat (2). When the hydraulic pressure at a liquid inlet changes, the position of a movable built-in notching circular tube is adjusted so as to control the liquid inlet amount of the liquid inlet hole and ensure that the output flow keeps constant under a certain precision. The utility model has simple structure and high constant flow control precision. The changes of flow, pressure, temperature, performance (within a certain range) of pipeline fluid do not influence the change of the output flow of the valve body.
Description
Technical field
The utility model relates to the flow control valve field, specifically belongs to the Flow-rate adjustment self-operated flow control valve.
Background technique
Traditional flow control valve mainly contains two kinds of manual modulation valve and electric control valves, is a kind of novel self-operated flow control valve and use more now on the market.This is a kind of easy Flow-rate adjustment control gear directly perceived, and with respect to manual modulation valve, its advantage is to regulate flow automatically, does not need human intervention; With respect to electric control valve, its advantage is not need external impetus, does not consume energy.Application practice proves, in closed-loop water system (as hot-water heating system, the air-condition freezing system), this valve of correct use, not only can realize the transient equiliblium of the assignment of traffic and the system of system easily, can also stablize the working state of pump, greatly the debugging work of simplified system.Therefore, direct-operated regulator has wide application prospect in the heat supplying air conditioning engineering.
And the utility model self-adapting type constant flow control valve also belongs to a kind of of self-operated flow control valve, different is, it is a kind of constant flow valve, the function that is realized not is to be flow size adjustment or realization flow dynamics balance, but under the situation of different flow size input, the control output flow keeps constant in certain accuracy rating, to satisfy the user demand of output constant current amount.
The model utility content
The utility model self-adapting type constant flow control valve comprises that spool, spring housing form valve body in valve seat, is characterized in: wherein, outer fixing sleeve pipe valve seat 2 is used for that flange connects or pipeline connects; The pipe side of removable built-in fluting pipe spool 1 is provided with small sircle hole 4 and two curved line hole 5, is inlet opening; Spring connecting mechanism 6 one ends are connected with removable built-in fluting pipe spool 1, the other end and outer fixing sleeve pipe valve seat 2 is fixing, when being used for the hydraulic pressure variation of feed liquor place, regulate the position of removable built-in fluting pipe, thereby the size of control inlet opening feed liquor amount is to guarantee that output flow keeps constant under certain precision.
Working procedure: (see figure 1) pipeline fluid is full of valve body after entering valve body from 5 two inlet openings of small sircle hole 4 and two curved line holes, keeps the constant current amount to flow out from drain pipe 3 ends then.When the liquid feeding end fluid flow changes (increase or reduce), respective change takes place in the hydraulic pressure (increase or reduce) that enters the fluid of valve body from two inlet openings, act on spring connecting mechanism 6, thereby make its generation elastic strain drive removable built-in pipe generation and move axially (to outlet end or liquid feeding end), but make the two curved line holes of feed liquor 5 liquid entering hole areas change (reduce or increase), thereby but the liquid entering hole area is increased along with the inlet end piping flow or reduce and a certain proportion of anti-change (reduce or increase) takes place, make the fluid flow that enters in the valve body keep constant, thereby the control output flow keep constant in certain accuracy rating.
The utility model is simple in structure, constant flow rate control accuracy height.The variation of pipeline fluid flow, pressure, temperature, character (within the specific limits) does not influence the variation of valve body output flow.
Description of drawings
Fig. 1 self-adapting type constant flow control valve;
Number in the figure:
1, removable built-in fluting pipe spool 2, outer fixing sleeve pipe valve seat 3, drain pipe 4, circular hole 5, two curved lines hole 6, spring connecting mechanism
Embodiment
Introduce the utility model embodiment below in conjunction with accompanying drawing.
Outer fixing sleeve pipe valve seat 2 is a stainless steel material, is used for flange connection or pipeline and connects; Removable built-in fluting pipe spool 1 adopts stainless steel material or brass material, can suitably select according to fluid type; Spring connecting mechanism 6 also adopts stainless steel material.
Removable built-in fluting pipe spool 1 is enclosed within the outer fixing sleeve pipe valve seat 2, is Spielpassung between them.The liquid entering hole form that circular hole 4 and two curved line hole 5 combine changes the liquid entering hole area to guarantee the constant of valve body inner fluid flow under hydraulic pressure and elastic force effect, make output flow constant.Big mouthful of the projection approximation one end osculum in two curved lines hole 5, the other end tubaeform; The close liquid entering hole of one osculum end.
Range of working pressure 1.00～the 3.00MPa of control valve, 0～200 ℃ of operating temperature, operating pressure differential 20-1000KPa, flow accuracy: ± 5%.
Spring connecting mechanism 6 is chosen 50CrVA and is coated fluoroplastic, and compressive strength is 5MPa, and the load life-span guarantees 1 * 10
7Inferior; Seal face materials is a built-up welding Co base cemented carbide.The variation of pipeline fluid flow, pressure, temperature, character (within the specific limits) does not influence the variation of valve body output flow.
Claims (2)
1. self-adapting type constant flow control valve comprises that spool, spring housing form valve body in valve seat, is characterized in: spring connecting mechanism (6) one ends are connected with removable built-in fluting pipe spool (1), the other end and outer fixing sleeve pipe valve seat (2) are fixing; The pipe side of removable built-in fluting pipe spool (1) is provided with circular hole (4) and two curved line hole (5).
2. control valve according to claim 1 is characterized in that: described pair of curved line hole (5) is approximate tubaeform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200780597U CN201462132U (en) | 2009-07-09 | 2009-07-09 | Self-adaptable constant flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200780597U CN201462132U (en) | 2009-07-09 | 2009-07-09 | Self-adaptable constant flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462132U true CN201462132U (en) | 2010-05-12 |
Family
ID=42389485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200780597U Expired - Fee Related CN201462132U (en) | 2009-07-09 | 2009-07-09 | Self-adaptable constant flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351901A (en) * | 2016-08-31 | 2017-01-25 | 北京精密机电控制设备研究所 | Constant flow control valve composed of damping network and two stages slide valves |
| CN112610740A (en) * | 2020-12-23 | 2021-04-06 | 江苏科技大学 | Mechanical self-operated constant flow control combined device |
-
2009
- 2009-07-09 CN CN2009200780597U patent/CN201462132U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351901A (en) * | 2016-08-31 | 2017-01-25 | 北京精密机电控制设备研究所 | Constant flow control valve composed of damping network and two stages slide valves |
| CN112610740A (en) * | 2020-12-23 | 2021-04-06 | 江苏科技大学 | Mechanical self-operated constant flow control combined device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100709 |