CN202992307U - Differential pressure balance valve - Google Patents
Differential pressure balance valve Download PDFInfo
- Publication number
- CN202992307U CN202992307U CN 201220717844 CN201220717844U CN202992307U CN 202992307 U CN202992307 U CN 202992307U CN 201220717844 CN201220717844 CN 201220717844 CN 201220717844 U CN201220717844 U CN 201220717844U CN 202992307 U CN202992307 U CN 202992307U
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- valve
- differential pressure
- pressure
- barrier film
- end cap
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Abstract
The utility model discloses a differential pressure balance valve which comprises a valve (1). The valve (1) is provided with a water inlet (11), a water outlet (12) and a valve port (13), and the water inlet (11) is communicated with the water outlet (12) via the valve port (13); a diaphragm (2) is arranged inside the valve (1), a transmission rod (3) is connected with the lower portion of the diaphragm (2), a piston (4) matched with the valve port (13) is fixed onto the transmission rod (3), and the bottom of the transmission rod (3) is supported by a working spring (5); a pressure pipe (6) is communicated with an upper cavity of the diaphragm (2); an end cover (7) is arranged at the upper end of the valve (1), and the upper cavity of the diaphragm (2) is formed by the end cover (7) and the diaphragm (2) in an enclosing manner; and a regulating component used for regulating the intake pressure of the pressure pipe (6) is arranged on the end cover (7). The differential pressure balance valve has the advantages that a differential pressure range can be regulated, accordingly, influence caused by errors can be avoided, and the operational reliability of a system is guaranteed.
Description
Technical field
The utility model relates to the fluid control component technical field, particularly a kind of differential pressure balancing valve.
Background technique
Differential Pressure Controller is a kind ofly disobey outer boundary power and keep the constant hydraulic equilibrium of controlled system pressure reduction valve, the water system that is used for urban heating (air-conditioning), keeping the pressure reduction of controlled system (residential quarter, building, a unit, a user, an equipment ...) is definite value, be particularly useful for from main regulation, measure by door, the variable flow system of household metering.
Differential Pressure Controller does not need the external energy to rely on controlled medium self pressure to change to automatically adjust, and automatically eliminates the residual pressure head of pipe network and the constant user's inlet outlet pressure differential of flow deviation that pressure surge causes, helps the stable system operation.
In the prior art, the general use of Differential Pressure Controller be diaphragm of rubber, and without pressure adjusting structure.Yet existing diaphragm of rubber bears pressure reduction little, and easily aging, the life-span is short; Prior art is without pressure adjusting structure, and the scope of the pressure reduction of controlling is little, and pressure reduction has under error condition, can not regulate making up.
The model utility content
The technical problems to be solved in the utility model is for providing a kind of differential pressure balancing valve, the structural design of this differential pressure balancing valve can realize the adjusting of pressure differential range, thereby make differential pressure balancing valve have larger pressure reduction regulation range, thereby the impact that can avoid error to bring, the reliability of assurance system works.
For solving the problems of the technologies described above, the utility model provides a kind of differential pressure balancing valve, comprises valve body, and described valve body is provided with water intake, water outlet, reaches the valve port that is communicated with water intake and water outlet; Described valve inner or barrier film, the bottom of this barrier film is connected with drive link, is fixed with the piston that coordinates with described valve port on this drive link, and the bottom of described drive link is supported with working spring; The epicoele of described barrier film is communicated with PRESSURE PIPE; The upper end of described valve body is provided with end cap, and this end cap and barrier film surround the epicoele of barrier film; Described end cap is provided with for the adjusting parts of regulating the PRESSURE PIPE intake pressure.
Preferably, described end cap is provided with the passage that is communicated with PRESSURE PIPE, and described end cap is provided with the tapped hole with this channel connection, and described adjusting parts are the top adjusting screw of screw-thread fit in this tapped hole.
Preferably, the bottom of described valve body also is provided with another adjusting parts of regulating working spring elastic force.
Preferably, described another adjusting parts are the bottom adjusting screw.
Preferably, described piston is the work in copper plug.
On the basis of existing technology, differential pressure balancing valve provided by the utility model comprises valve body, and described valve body is provided with water intake, water outlet, reaches the valve port that is communicated with water intake and water outlet; Described valve inner or barrier film, the bottom of this barrier film is connected with drive link, is fixed with the piston that coordinates with described valve port on this drive link, and the bottom of described drive link is supported with working spring; The epicoele of described barrier film is communicated with PRESSURE PIPE; The upper end of described valve body is provided with end cap, and this end cap and barrier film surround the epicoele of barrier film; Described end cap is provided with for the adjusting parts of regulating the PRESSURE PIPE intake pressure.Particularly, described end cap is provided with the passage that is communicated with PRESSURE PIPE, and described end cap is provided with the tapped hole with this channel connection, and described adjusting parts are the top adjusting screw of screw-thread fit in this tapped hole.
In said structure, regulate pressure reduction by the top adjusting screw, the pressure reduction adjustable extent is larger, and precision is higher, and is tired and make differential pressure balancing valve have larger pressure reduction regulation range, thus the impact that can avoid error to bring guarantees the reliability of system works.
Description of drawings
Fig. 1 is the structural representation of a kind of differential pressure balancing valve in a kind of embodiment of the utility model.
Wherein, in Fig. 1, the corresponding relation between reference character and component names is:
1 valve body; 11 water intakes; 12 water outlets; 13 valve ports;
2 barrier films;
3 drive links;
4 pistons;
5 working springs;
6 PRESSURE PIPE;
7 end caps;
8 top adjusting screw;
9 bottom adjusting screw.
Embodiment
Core of the present utility model is for providing a kind of differential pressure balancing valve, the structural design of this differential pressure balancing valve can realize the adjusting of pressure differential range, thereby make differential pressure balancing valve have larger pressure reduction regulation range, thus can avoid error with impact, guarantee the reliability of system works.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of differential pressure balancing valve in a kind of embodiment of the utility model.
In one embodiment, as shown in Figure 1, differential pressure balancing valve provided by the utility model comprises valve body 1, and valve body 1 is provided with water intake 11, water outlet 12, reaches the valve port 13 that is communicated with water intake 11 and water outlet 12; The inner still barrier film 2 of valve body 1, the bottom of this barrier film 2 is connected with drive link 3, is fixed with the piston 4 that coordinates with valve port 13 on this drive link 3, and the bottom of drive link 3 is supported with working spring 5; The epicoele of barrier film 2 is communicated with PRESSURE PIPE 6; The upper end of valve body 1 is provided with end cap 7, and this end cap 7 and barrier film 2 surround the epicoele of barrier film; End cap 7 is provided with for the adjusting parts of regulating PRESSURE PIPE 6 intake pressures.Particularly, end cap 7 is provided with the passage that is communicated with PRESSURE PIPE 6, and end cap 7 is provided with the tapped hole with this channel connection, and described adjusting parts are the top adjusting screw 8 of screw-thread fit in this tapped hole.
In said structure, regulate pressure reduction by top adjusting screw 8, the pressure reduction adjustable extent is larger, and precision is higher, and is tired and make differential pressure balancing valve have larger pressure reduction regulation range, thus the impact that can avoid error to bring guarantees the reliability of system works.
In said structure, as shown in Figure 1, the inside of valve body 1 is fixed with sleeve, this sleeve comprises the first sleeve part and second sleeve part of connection, and the diameter of the first sleeve part is formed with step between the two greater than the second sleeve part, and this step is supported on the interior stepped part of valve body 1 inside.Valve port is opened on the sidewall of the second sleeve part, 4 one-tenth sleeve-shapeds of piston, and be located at the inside of the second sleeve part, along with drive link 3 moves up and down, piston 4 moves up and down in the inside of the second sleeve part, thereby regulates the size of the circulation area of valve port 13, and then the purpose of Timing flow.
In said structure, the barrier film guiding is located in the first sleeve part and can moves up and down,
Particularly, as shown in Figure 1, the bottom of valve body 1 also is provided with another adjusting parts of regulating working spring 5 elastic force.This another adjusting parts can be bottom adjusting screw 9.Can regulate the elastic force of working spring 5 by this bottom adjusting screw 9, thereby can further regulate pressure reduction.Particularly, as shown in Figure 1, the bottom of valve body 1 is provided with tapped through hole, and bottom adjusting screw 9 is passed this tapped through hole and contacted with the spring seat of working spring 5.In this kind structure, rotate bottom adjusting screw 9, thus extruding or pull-off spring seat, and then the elastic force of working spring 5 is regulated.
Further, piston 4 can be the work in copper plug.
The differential pressure balancing valve valve generally is arranged on the user entry return pipe, and PRESSURE PIPE in valve 6 is joined with the ingress water pipe, and barrier film top pressure equates with pressure of supply water P1, and differential pressure balancing valve valve water inlet pressure equates with pressure of return water P2, and P3 is valve pressure of return water outward.When if system pressure difference △ Pi is valve pressure differential resetting value in valve, the pressure P 1 of barrier film 2 tops adds that with pressure of return water P2 the thrust P4 that the compressed distortion of working spring 5 produces balances each other, thereby has determined pressure difference.When intake pressure P1 increased, barrier film 2 and piston 4 moved down, and this moment, working spring 5 power P4 increased, and the area of passage of valve port 13 diminishes simultaneously, and pressure of return water P2 also increases, and △ Pi (P1-P2-P4) pressure reduction remains unchanged.The utility model has increased top adjusting screw 8 and bottom adjusting screw 9, have two adjusting screw altogether, regulate pressure reduction, the pressure reduction adjustable extent is larger, precision is higher, and diaphragm material changes to copper product by original ordinary rubber, can bear like this pressure differential range higher, be not easy agingly, the life-span is longer.
In addition, the utility model also has following advantage:
1. adopt advanced pressure adjusting structure, regulation range is wider, controls the pressure reduction regulating ratio and can reach 20:1;
2. adopt advanced pressure adjusting structure, control the pressure reduction precision more accurate, precision≤8%;
3. adopt the copper product barrier film, can bear High Pressure Difference, can reach the pressure reduction of 0.8MPa; Be not easy agingly, the life-span is longer;
4. constant controlled system pressure reduction;
5. support the controlled system internal autonomy to regulate, eliminate the outer net pressure-difference fluctuation to the impact of controlled system;
6. inner without from main regulation the time when controlled system, this valve has namely possessed the function of self-operated flow control valve, sets the method for flow;
A. regulate the size of controlling pressure reduction;
B. regulate the size of controlled system resistance;
7. possess the function of eliminate stopping up, when controlling pressure reduction when maximum, valve is full-gear, and the dirt at area of passage place can be removed under pressure medium totally, and method is that the ball valve of pilot pipe end was closed 3 ~ 5 minutes;
8. employing Differential Pressure Controller is for household metering provides necessary condition.As everyone knows, household metering has improved hot user's autonomy by the heat charge, good utilisation Free Thermal energy saving more, if Differential Pressure Controller is not installed by system, when the user regulated, flow can only be gone to other users and locate, in addition, the maximum pressure-bearing 25Kpa of radiator thermostat valve does not add Differential Pressure Controller thermostat valve pressure reduction and crosses the danger that conference makes a noise.
9. employing Differential Pressure Controller is regulated for the transient equiliblium of system reliable assurance is provided.After household metering, when being stranded not pay, certain user closes to the user, if there is no Differential Pressure Controller, the flow that is closed or regulates the user will be imposed on other users, has so just caused other users expense of overpaying even to cause the imbalance of standing between pass and standpipe.After using Differential Pressure Controller, just can not impose on other users by the action flow of differential pressure control valve, the imbalance of vertical pass and standpipe.To the user, the user is by the control of thermostat valve when outdoor temperature or other Free Thermals, can be simultaneously all regulating and staying in the Chaoyang direction, and larger than the action that stays in towards cloudy direction, so just need to control this problem that solve by self-powering type pressure reduction.
Above a kind of differential pressure balancing valve provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (5)
1. a differential pressure balancing valve, comprise valve body (1), and described valve body (1) is provided with water intake (11), water outlet (12), reaches the valve port (13) that is communicated with water intake (11) and water outlet (12); The inner still barrier film (2) of described valve body (1), the bottom of this barrier film (2) is connected with drive link (3), be fixed with the piston (4) that coordinates with described valve port (13) on this drive link (3), the bottom of described drive link (3) is supported with working spring (5); The epicoele of described barrier film (2) is communicated with PRESSURE PIPE (6); It is characterized in that, the upper end of described valve body (1) is provided with end cap (7), and this end cap (7) and barrier film (2) surround the epicoele of barrier film (2); Described end cap (7) is provided with for the adjusting parts of regulating PRESSURE PIPE (6) intake pressure.
2. differential pressure balancing valve as claimed in claim 1, it is characterized in that, described end cap (7) is provided with the passage that is communicated with PRESSURE PIPE (6), and described end cap (7) is provided with the tapped hole with this channel connection, and described adjusting parts are the top adjusting screw (8) of screw-thread fit in this tapped hole.
3. differential pressure balancing valve as claimed in claim 1 or 2, is characterized in that, the bottom of described valve body (1) also is provided with another adjusting parts of regulating working spring (5) elastic force.
4. differential pressure balancing valve as claimed in claim 3, is characterized in that, it is bottom adjusting screw (9) that described another regulated parts.
5. differential pressure balancing valve as claimed in claim 1 or 2, is characterized in that, described piston (4) is the work in copper plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717844 CN202992307U (en) | 2012-12-22 | 2012-12-22 | Differential pressure balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717844 CN202992307U (en) | 2012-12-22 | 2012-12-22 | Differential pressure balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992307U true CN202992307U (en) | 2013-06-12 |
Family
ID=48563487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717844 Expired - Fee Related CN202992307U (en) | 2012-12-22 | 2012-12-22 | Differential pressure balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047461A (en) * | 2012-12-22 | 2013-04-17 | 北京菁华昱创节能设备有限公司 | Differential pressure balance valve |
-
2012
- 2012-12-22 CN CN 201220717844 patent/CN202992307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047461A (en) * | 2012-12-22 | 2013-04-17 | 北京菁华昱创节能设备有限公司 | Differential pressure balance valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |