CN112460269A - Linear type balance valve - Google Patents
Linear type balance valve Download PDFInfo
- Publication number
- CN112460269A CN112460269A CN202011427303.3A CN202011427303A CN112460269A CN 112460269 A CN112460269 A CN 112460269A CN 202011427303 A CN202011427303 A CN 202011427303A CN 112460269 A CN112460269 A CN 112460269A
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- China
- Prior art keywords
- valve
- sliding ring
- valve body
- inlet
- cavity
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1266—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being acted upon by the circulating fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to the technical field of valves and discloses a linear balance valve which comprises a valve body, a valve cover, a sliding ring and a diaphragm, wherein the valve body is matched with the valve cover and is provided with a matching cavity positioned in the middle and a control cavity positioned on the periphery, the valve body is provided with an inlet connector and a pressure guide connector connected with a water inlet of a proportional mixer, the valve cover is provided with an outlet connector, the periphery of the sliding ring is in sliding fit with the matching cavity, the sliding ring is provided with a liquid passing channel respectively communicated with the inlet connector and the outlet connector, the sliding ring, the inlet connector and the outlet connector are positioned on the same axis, the inlet connector is provided with a valve plate, one end of the sliding ring, facing the inlet connector, is provided with a valve port capable of being close to the valve plate, the diaphragm is connected between the valve body and the sliding ring and divides the control cavity into a front cavity; the invention has the advantages of accurately controlling the pressure difference between the water and the foam stock solution so as to achieve the aim of accurately controlling the mixing proportion, along with simple and compact integral structure and less occupied space.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a linear type balance valve.
Background
The foam fire extinguishing system enables the foam stock solution and the water to be mixed according to a specified proportion by maintaining the pressure balance when the foam stock solution and the water enter the proportioning mixer and dynamically adjusting the amount of the foam stock solution entering the proportioning mixer through the balance valve, so that the effect of the generated foam mixed solution is optimal. However, the valve core in the existing balance valve is usually vertically connected between the liquid inlet end and the liquid outlet end of the valve core, so that the balance valve is in a T shape or a Y shape, the occupied space of the balance valve is large, the balance valve is inconvenient to install in a small space position, even the arrangement of a pipe network needs to be adjusted to match with the balance valve, the existing valve core is complex in structure, and the assembly and the subsequent maintenance operation are complex.
Disclosure of Invention
The invention aims to provide a linear type balance valve which can accurately control the pressure difference between water and foam stock solution so as to achieve the aim of accurately controlling the mixing ratio, and has the advantages of simple and compact integral structure and less space occupation.
In order to achieve the purpose, the invention provides a linear balance valve which comprises a valve body, a valve cover, a sliding ring and a membrane, wherein the valve body is matched with the valve cover and forms a matching cavity positioned in the middle and a control cavity positioned on the periphery, the valve body is provided with an inlet connector and a pressure guide connector connected with a water inlet of a proportional mixer, the valve cover is provided with an outlet connector connected with a foam liquid inlet of the proportional mixer, the periphery of the sliding ring is in sliding fit with the matching cavity, the sliding ring is internally provided with a liquid passing channel respectively communicated with the inlet connector and the outlet connector, the sliding ring, the inlet connector and the outlet connector are positioned on the same axis, the inlet connector is provided with a valve plate, one end of the sliding ring, facing the inlet connector, is provided with a valve port capable of being close to the valve plate, and the membrane is connected between the valve body and the sliding ring, and the control cavity is divided into a front cavity and a rear cavity, the rear cavity is communicated with the outlet connector, and the front cavity is communicated with the pressure guide connector.
In a preferred embodiment of the present invention, a connection plate is disposed on an outer periphery of the slip ring, and an inner edge of the diaphragm is connected to an outer periphery of the connection plate.
As a preferable scheme of the present invention, the connecting plate is provided with a guide ring, and the valve body is provided with a guide groove which is in sliding fit with the outer periphery of the guide ring.
In a preferred embodiment of the present invention, the outer edge of the diaphragm is clamped between mating surfaces of the valve body and the valve cover.
In a preferred embodiment of the present invention, a sealing water line is provided on a contact surface of the valve body and the diaphragm.
In a preferred embodiment of the present invention, a sealing waterline is provided on a contact surface of the valve cover and the diaphragm.
Preferably, the valve port and the valve plate form a conical sealing structure.
As a preferable scheme of the invention, a first sealing ring is arranged between the matching cavity and the sliding ring; and a second sealing ring is arranged between the inlet joint and the valve body.
In a preferred embodiment of the present invention, the valve body and the valve cover are fixedly connected by bolts, and the inlet joint and the valve body are connected by threads.
As a preferable aspect of the present invention, the outlet joint is integrally formed with the valve cover.
Compared with the prior art, the linear type balance valve provided by the embodiment of the invention has the beneficial effects that:
the sliding ring is connected with the valve body through the diaphragm, the diaphragm divides the control cavity into a front cavity connected with a water inlet of the proportional mixer and a rear cavity connected with a water outlet joint, and the diaphragm is driven to drive the sliding ring to move back and forth through the pressure difference between the front cavity (the water pressure of inlet water on the proportional mixer) and the rear cavity (the foam stock solution hydraulic pressure on the proportional mixer); when the hydraulic pressure of the front cavity is greater than that of the rear cavity, the sliding ring moves away from the valve plate, so that the opening degree between a valve port of the sliding ring and the valve plate is increased, the liquid inlet quantity of the foam stock solution entering the proportional mixer is increased, the pressure difference between the water entering the proportional mixer and the foam stock solution is balanced, and the water and the foam stock solution can reach a preset mixing ratio; when the hydraulic pressure in the front cavity is smaller than that of the rear cavity, the sliding ring moves towards the direction close to the valve plate, so that the opening degree between a valve port of the sliding ring and the valve plate is reduced, the liquid inlet amount of the foam stock solution entering the proportioner is further reduced, the pressure difference between the water entering the proportioner and the foam stock solution is balanced, and the water and the foam stock solution can reach a preset mixing ratio; the invention can accurately control the pressure difference between the water and the foam stock solution so as to achieve the aim of accurately controlling the mixing proportion, and the inlet joint, the sliding ring and the outlet joint are positioned on the same axis, so that the invention has the advantages of simple and compact integral structure, effective reduction of space occupation, stable and reliable work and convenient processing, assembly and replacement of parts.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a schematic structural view of a linear type balance valve provided by the present invention;
in the figure, 1 is a valve body; 11 is an inlet joint; 12 is a valve plate; 13 is a pressure guide joint; 14 is a guide groove; 2 is a valve cover; 21 is an outlet joint; 3 is a slip ring; 31 is a liquid passing channel; 32 is a valve port; 33 is a connecting plate; 34 is a guide ring; 4 is a membrane; 5 is a matching cavity; 6 is a control cavity; 61 is a front cavity; 62 is a rear cavity; 7 is a first sealing ring; 8 is a second sealing ring; and 9 is a bolt.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, a linear balance valve according to a preferred embodiment of the present invention includes a valve body 1, a valve cover 2, a sliding ring 3 and a diaphragm 4, wherein the valve body 1 is engaged with the valve cover 2 and forms a engaging chamber 5 located in the middle and a control chamber 6 located around, the valve body 1 is provided with an inlet joint 11 connected with a foam concentrate liquid supply end and a pressure guide joint 13 communicated with a main water pipe of a proportioner, the valve cover 2 is provided with an outlet joint 21 connected with a foam liquid inlet of the proportioner, the outer periphery of the sliding ring 3 is slidably engaged with the engaging chamber 5, the sliding ring 3 is provided with a liquid passing channel 31 respectively communicating the inlet joint 11 and the outlet joint 21, the sliding ring 3, the inlet joint 11 and the outlet joint 21 are located on the same axis, the inlet joint 11 is provided with a valve plate 12, a valve port 32 capable of approaching the valve plate 12 is provided at one end of the sliding ring 3 facing the inlet joint 11, the diaphragm 4 is connected between the valve body 1 and the sliding ring 3 and divides the control cavity 6 into a front cavity 61 and a rear cavity 62, the rear cavity 62 is communicated with the water outlet joint 21, and the front cavity 61 is communicated with the pressure guide joint 13. In this embodiment, the diaphragm 4 is ring-shaped, the outer edge of the diaphragm is connected to the valve body 1, the inner edge of the diaphragm is connected to the sliding ring 3, and a hollow structure for allowing liquid to flow through is provided between the valve plate 12 and the inlet joint 11, so that the water in the inlet joint 11 flows into the liquid passing channel 31.
Therefore, the sliding ring 3 is connected with the valve body 12 through the diaphragm 4, the diaphragm 4 divides the control cavity 6 into a front cavity 61 connected with the water inlet of the proportional mixer and a rear cavity 62 connected with the water outlet joint, and the diaphragm 4 is driven to drive the sliding ring 3 to move back and forth through the pressure difference between the front cavity 61 (the water inlet pressure on the proportional mixer) and the rear cavity 62 (the foam raw liquid inlet pressure on the proportional mixer); when the hydraulic pressure of the front cavity 61 is greater than that of the rear cavity 62, the sliding ring 3 moves away from the valve plate 12, so that the opening degree between the valve port 32 of the sliding ring 3 and the valve plate 12 is increased, the liquid inlet amount of the foam stock solution entering the proportioner is increased, the pressure difference between the water entering the proportioner and the foam stock solution is balanced, and the water and the foam stock solution can reach a preset mixing ratio; when the hydraulic pressure in the front cavity 61 is smaller than that in the rear cavity 62, the sliding ring 3 moves towards the direction close to the valve plate 12, so that the opening degree between the valve port 32 of the sliding ring 3 and the valve plate 12 is reduced, the liquid inlet amount of the foam stock solution entering the proportioner is further reduced, the pressure difference between the water entering the proportioner and the foam stock solution is balanced, and the water and the foam stock solution can reach a preset mixing ratio; it can be seen that the invention can accurately control the pressure difference between the water and the foam stock solution, thereby achieving the purpose of accurately controlling the mixing proportion, and because the inlet joint 11, the sliding ring 3 and the outlet joint 21 are positioned on the same axis, the whole structure is simple and compact, the occupied space is effectively reduced, the operation is stable and reliable, and the processing, the assembly and the replacement of parts are convenient.
Illustratively, the outer periphery of the sliding ring 3 is provided with a connecting plate 33, the inner edge of the diaphragm 4 is connected with the outer periphery of the connecting plate 33, and the diaphragm 4 is molded on the outer periphery of the connecting plate 33 to facilitate the assembly of the linear balance valve.
Illustratively, the connecting plate 33 is provided with a guide ring 34, the valve body 1 is provided with a guide groove 14 in sliding fit with the outer periphery of the guide ring 34, and the guide groove 14 is matched with the guide ring 34, so that the stability of the sliding ring 3 during movement is improved.
Illustratively, the outer edge of the diaphragm 4 is clamped between the matching surfaces of the valve body 1 and the valve cover 2, so that the diaphragm 4 can be conveniently fixed; the valve body 1 with be equipped with sealed waterline on the contact surface of diaphragm 4, valve gap 2 with be equipped with sealed waterline on the contact surface of diaphragm 4, improve the sealed effect of linear type balance valve.
Illustratively, the valve port 32 and the valve plate 12 form a conical sealing structure, so that the sealing effect between the valve port 32 and the valve plate 12 when the linear balance valve is closed is improved.
Exemplarily, a first sealing ring 7 is arranged between the matching cavity 5 and the sliding ring 3, so that the sealing effect between the matching cavity 5 and the sliding ring 3 is improved, and the working stability of the diaphragm 4 is prevented from being influenced by the flow of water from a gap between the matching cavity 5 and the sliding ring 3; in order to improve the sealing performance between the inlet joint 11 and the valve body 1, a second sealing ring 8 is arranged between the inlet joint 11 and the valve body 1.
Illustratively, the valve body 1 and the valve cover 2 are fixedly connected through a bolt 9, the inlet joint 11 and the valve body 1 are connected through a thread, and the outlet joint 21 and the valve cover 2 are integrally formed; the linear balance valve is simple to assemble and disassemble, and parts can be conveniently maintained and replaced for the linear balance valve in the follow-up process.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A linear balance valve is characterized by comprising a valve body, a valve cover, a sliding ring and a diaphragm, wherein the valve body is matched with the valve cover and is provided with a matching cavity positioned in the middle and a control cavity positioned on the periphery, the valve body is provided with an inlet joint and a pressure guide joint connected with a water inlet of a proportional mixer, the valve cover is provided with an outlet joint connected with a foam liquid inlet of the proportional mixer, the periphery of the sliding ring is in sliding fit with the matching cavity, the sliding ring is internally provided with a liquid passing channel respectively communicated with the inlet joint and the outlet joint, the sliding ring, the inlet joint and the outlet joint are positioned on the same axis, the inlet joint is provided with a valve plate, one end of the sliding ring, facing the inlet joint, is provided with a valve port capable of being close to the valve plate, and the diaphragm is connected between the valve body and the sliding ring, and the control cavity is divided into a front cavity and a rear cavity, the rear cavity is communicated with the water outlet joint, and the front cavity is communicated with the pressure guide joint.
2. The linear balance valve of claim 1, wherein the outer periphery of the sliding ring is provided with a connecting plate, and the inner edge of the diaphragm is connected to the outer periphery of the connecting plate.
3. The linear balance valve of claim 2, wherein a guide ring is provided on said connecting plate, and said valve body is provided with a guide groove slidably fitted to an outer periphery of said guide ring.
4. The linear balance valve of claim 1, wherein the outer edge of said diaphragm is clamped between mating surfaces of said valve body and said bonnet.
5. The linear balance valve of claim 4 wherein a seal waterline is provided on the interface of said valve body and said diaphragm.
6. The linear balance valve of claim 4 wherein a sealing waterline is provided on the interface of said bonnet and said diaphragm.
7. The linear balance valve of claim 1, wherein the valve port forms a conical seal with the valve plate.
8. The linear balance valve of claim 1, wherein a first seal ring is disposed between said engagement cavity and said sliding ring; and a second sealing ring is arranged between the inlet joint and the valve body.
9. The linear balance valve of claim 1, wherein said valve body is fixed to said valve cover by a bolt, and said inlet fitting is threadedly coupled to said valve body.
10. The linear balancing valve of claim 1, wherein the outlet fitting is integrally formed with the bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427303.3A CN112460269B (en) | 2020-12-09 | 2020-12-09 | Linear type balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427303.3A CN112460269B (en) | 2020-12-09 | 2020-12-09 | Linear type balance valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112460269A true CN112460269A (en) | 2021-03-09 |
| CN112460269B CN112460269B (en) | 2023-03-31 |
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ID=74801721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011427303.3A Active CN112460269B (en) | 2020-12-09 | 2020-12-09 | Linear type balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112460269B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968422Y (en) * | 2006-11-17 | 2007-10-31 | 上海奥新阀门制造有限公司 | Hydraulic controlled valve |
| CN101461988A (en) * | 2008-12-09 | 2009-06-24 | 上海金盾消防安全设备有限公司 | Multifunctional balancing application valve |
| US20120285557A1 (en) * | 2011-05-11 | 2012-11-15 | Nelson Irrigation Corporation | Pressure regulator with remotely controlled shut-off valve |
-
2020
- 2020-12-09 CN CN202011427303.3A patent/CN112460269B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968422Y (en) * | 2006-11-17 | 2007-10-31 | 上海奥新阀门制造有限公司 | Hydraulic controlled valve |
| CN101461988A (en) * | 2008-12-09 | 2009-06-24 | 上海金盾消防安全设备有限公司 | Multifunctional balancing application valve |
| US20120285557A1 (en) * | 2011-05-11 | 2012-11-15 | Nelson Irrigation Corporation | Pressure regulator with remotely controlled shut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112460269B (en) | 2023-03-31 |
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