CN209800809U - balance valve - Google Patents
balance valve Download PDFInfo
- Publication number
- CN209800809U CN209800809U CN201920591963.1U CN201920591963U CN209800809U CN 209800809 U CN209800809 U CN 209800809U CN 201920591963 U CN201920591963 U CN 201920591963U CN 209800809 U CN209800809 U CN 209800809U
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- valve body
- cavity
- fluid
- piston
- fluid output
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Abstract
The utility model discloses a balance valve, including middle valve body and install left valve body and the right valve body in middle valve body both sides, be provided with first fluid input control device and second fluid input control device on left side valve body and the right valve body respectively. The utility model discloses a pressure gas carries out the balance of both sides gas pressure to can realize output gas's pressure regulation through the gaseous pressure value of adjustment pressure, not only the precision is high but also use in a flexible way.
Description
Technical Field
the utility model relates to a balanced valve technical field especially relates to a balanced valve.
Background
the balance valve is a special function valve, in some industries, because of the large pressure difference of media (various flowable materials) in various parts of a pipeline or a container, in order to reduce or balance the difference, the invention adjusts different pressures of different fluids to be the same, namely, the balance valve is called, and the existing balance valve mainly adopts a spring to realize the balance control of the pressure, but has the defects of large error and non-adjustability, and the error is further increased due to the property of the spring along with the increase of the use time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point, provide a balanced valve to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a balance valve comprises a middle valve body, a left valve body and a right valve body which are arranged on two sides of the middle valve body, wherein a first fluid input control device and a second fluid input control device are respectively arranged on the left valve body and the right valve body;
a left balance diaphragm is arranged between the middle valve body and the left valve body, and the left balance diaphragm can be movably arranged in a left movable cavity formed between the middle valve body and the left valve body from left to right; a right balance diaphragm is arranged between the middle valve body and the right valve body, and the right balance diaphragm can be movably arranged in a right movable cavity formed between the middle valve body and the right valve body from left to right; the middle valve body is provided with a balance control pressure input port which is respectively communicated with the right side of the left movable cavity and the left side of the right movable cavity through a control pressure input channel;
The left valve body is provided with a first fluid output cavity on the left side of the left movable cavity, a first push sheet is arranged between the first fluid output cavity and the left movable cavity and can move left and right, the right side of the first push sheet is abutted against the left side of the left balance diaphragm, and a first fluid output port communicated with the first fluid output cavity is arranged on the left valve body;
the first fluid input control device comprises a first connecting seat and a first end cover, a first control cavity is formed between the first connecting seat and the first end cover, a first fluid output channel for communicating the first control cavity and the first fluid output cavity is arranged on the first connecting seat, the first connecting seat is provided with a first fluid input port communicated with the first control cavity, a first piston part for adjusting the cross-sectional size of the channel between the first control chamber and the first fluid outlet channel is arranged in the first control chamber, a first compression spring is arranged between the first piston piece and the first end cover, the first piston piece comprises a first piston main body, a first piston plate and a first piston top column, the first piston plate corresponds to the position of the first fluid output channel, and the first piston ejection column abuts against the left side of the first push sheet;
The right valve body is provided with a second fluid output cavity on the right side of the right movable cavity, a second push piece is arranged between the second fluid output cavity and the right movable cavity and can move left and right, the right side of the second push piece is abutted against the right side of the right balance diaphragm, and a second fluid output port communicated with the second fluid output cavity is arranged on the right valve body;
the second fluid input control device comprises a second connecting seat and a second end cover, a second control cavity is formed between the second connecting seat and the second end cover, a second fluid output channel for communicating the second control cavity and the second fluid output cavity is arranged on the second connecting seat, a second fluid input port communicated with the second control cavity is arranged on the second connecting seat, a second piston piece for adjusting the section size of a channel between the second control cavity and the second fluid output channel is arranged in the second control cavity, a second compression spring is arranged between the second piston piece and the second end cover, the second piston piece comprises a second piston main body, a second piston plate and a second piston top column, the second piston plate corresponds to the position of a second fluid output channel, and the second piston ejection column abuts against the right side of the second push sheet.
Further, the balance control pressure input port is connected with a balance pressure input pipe, and a one-way valve is arranged on the balance pressure input pipe.
Further, the left balance diaphragm and the right balance diaphragm are both rubber sheets.
Furthermore, the first fluid output channel and the second fluid output channel are uniformly provided with a plurality of positions along the circumferential direction.
Further, a first stabilizing cavity is formed between the first piston piece and the first end cover, and a first piston stabilizing channel used for communicating the first fluid output channel with the first stabilizing cavity is arranged on the first piston piece; and a second stabilizing cavity is formed between the second piston piece and the second end cover, and a second piston stabilizing channel used for communicating the second fluid output channel with the second stabilizing cavity is arranged on the second piston piece.
A fluid balance method adopting the balance valve is characterized in that fluid A and fluid B with different pressures are respectively introduced into a first fluid input port and a second fluid input port, and pressure control gas is introduced into a balance control pressure input port, so that the fluid A and the fluid B output from a first fluid output cavity and a second fluid output cavity can reach a balance state with the pressure control gas, namely the pressure of the output fluid A, the pressure of the output fluid B and the pressure of the pressure control gas are equal;
When the pressure of the output fluid A is reduced, namely the pressure of the fluid in the first fluid output cavity is reduced, the pressure of the pressure control gas pushes the left balance diaphragm to the left side, so that the first piston part moves to the left, the sectional area of the channel of the fluid A is increased, the pressure of the fluid in the first fluid output cavity is increased until the pressure of the fluid is the same as that of the pressure control gas, namely the pressure of the output fluid A is increased, and the gases on the two sides are balanced again;
When the pressure of the output B fluid is reduced, the output B fluid is also increased under the principle;
When the pressure of the output fluid A is increased, namely the pressure of the fluid in the first fluid output cavity is increased, the left balance diaphragm can move rightwards, the pressure of the pressure control gas can be increased by moving the balance diaphragm rightwards because the pressure control gas cannot flow backwards, the increased pressure can push the right balance diaphragm to the right, so that the second piston piece can move rightwards, the sectional area of a channel of the fluid B is increased, the pressure of the fluid in the second fluid output cavity is increased, namely the pressure of the output fluid B is increased, and the gases on the two sides are balanced again;
when the pressure of the output fluid B is increased, the output fluid A is also increased under the principle.
the above technical scheme of the utility model following beneficial effect has: the utility model discloses a pressure gas carries out the balance of both sides gas pressure to can realize output gas's pressure regulation through the gaseous pressure value of adjustment pressure, not only the precision is high but also use in a flexible way.
drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
Fig. 2 is a side view of an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B;
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is an enlarged view of a portion of FIG. 1 at D;
Fig. 7 is a partial enlarged view at E in fig. 6.
Detailed Description
the following describes embodiments of the present invention in further detail with reference to 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, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. 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, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-7, the balance valve described in this embodiment includes a middle valve body 1, and a left valve body 2 and a right valve body 3 installed at two sides of the middle valve body 1, where the left valve body 2 and the right valve body 3 are respectively provided with a first fluid input control device and a second fluid input control device, in this embodiment, the middle valve body 1, the left valve body 2, and the right valve body 3 are all in a disc shape, and the three are connected by a plurality of screws 34 arranged along the circumferential direction, where the first fluid input control device and the second fluid input control device are respectively installed at the central positions of the left valve body 2 and the right valve body 3.
in the present embodiment, the balance valve is a structure symmetrical with respect to the intermediate valve body 1.
a left balance diaphragm 4 is arranged between the middle valve body 1 and the left valve body 2, and the left balance diaphragm 4 can be movably arranged in a left movable cavity 5 formed between the middle valve body 1 and the left valve body 2 from left to right; be provided with right balanced diaphragm 6 between middle valve body 1 and the right valve body 3, the setting that right balanced diaphragm 6 can control the activity is in the right activity chamber 7 that constitutes between middle valve body 1 and right valve body 3, in this embodiment, left side balanced diaphragm 4 is circular with having right balanced diaphragm 6, the outer edge of left side balanced diaphragm 4 is pressed from both sides tightly by left valve body 2 and middle valve body 1, the inboard of left side balanced diaphragm 4 can move about in left activity chamber 5, equally, the outer edge of right side balanced diaphragm 6 is pressed from both sides tightly by right valve body 3 and middle valve body 1, the inboard of right side balanced diaphragm 6 can move about in right activity chamber 5, left activity chamber 5 is formed by the cell body amalgamation of seting up on middle valve body 1 and left valve body 2, right activity chamber 7 is formed by the cell body amalgamation of seting up on middle valve body 1 and right valve body 2.
The middle valve body 1 is provided with a balance control pressure input port 8, and the balance control pressure input port 8 is respectively communicated with the right side of the left movable cavity 5 and the left side of the right movable cavity 7 through a control pressure input channel 9.
left valve body 2 is provided with first fluid output chamber 10 in the left side of left side activity chamber 6, can remove between first fluid output chamber 10 and the left side activity chamber and be provided with first kicker 11 of moving about, the first kicker 11 of cooperation is provided with the mounting groove on the left valve body 2, the right side of first kicker 11 is supported and is leaned on the left side at left balance diaphragm 4, be provided with the first fluid delivery outlet 12 that is linked together with first fluid output chamber 10 on the left valve body 2, in this embodiment, first kicker 11 is circular, and the cross-section is the U-shaped, set up to the U-shaped can make first kicker 11 under the effect of fluid pressure, more steady removal.
the first fluid input control device comprises a first connecting seat 13 and a first end cover 14, a first control cavity 15 is formed between the first connecting seat 13 and the first end cover 14, a first fluid output channel 16 used for communicating the first control cavity 15 with the first fluid output cavity 10 is arranged on the first connecting seat 13, a first fluid input port 17 communicated with the first control cavity 15 is arranged on the first connecting seat 13, a first piston piece 18 used for adjusting the section size of a channel a between the first control cavity 15 and the first fluid output channel 16 is arranged in the first control cavity 15, and the pressure of output fluid in the first fluid output cavity 10 is controlled by adjusting the section size of the channel a; a first compression spring 19 is arranged between the first piston element 18 and the first end cover 14, and the first piston element 18 and the first end cover 14 are respectively provided with a mounting clamping groove matching with the first compression spring 19, the first piston element 18 comprises a first piston main body 181, a first piston plate 182 and a first piston prop 183, the first piston plate 182 corresponds to the first fluid output channel 16, the channel a is composed of a gap between the first piston plate 182 and the inlet of the first fluid output channel 16, the first piston prop 183 penetrates through the first connecting seat 13 and abuts against the left side of the first push plate 11, the first connecting seat 13 and the first end cover 14 are respectively provided with a guiding structure matching with the first piston element 18, in the embodiment, the guiding structure comprises a guiding hole arranged on the first connecting seat 13 and matching with the first piston prop 183 and a guiding hole arranged on the first end cover 14 and matching with the first piston main body 181, smooth sliding of the first piston member 18 is ensured, and control accuracy is improved.
In this embodiment, the first connecting seat 13 is connected with the left valve body 2 in a clamping manner through a snap spring, a sealing ring is arranged between the first connecting seat 13 and the left valve body 2, and of course, the first connecting seat 13 can also be connected with the left valve body 2 through a threaded structure; the first connecting seat 13 is connected with the first end cover 14 through a thread structure, the thread structure comprises an external thread arranged on the first end cover 14 and an internal thread arranged on the first connecting seat 13, and a sealing ring is arranged between the first connecting seat 13 and the first end cover 14.
Right valve body 3 is provided with second fluid output chamber 20 on the right side of right activity chamber 7, can remove between second fluid output chamber 20 and the right activity chamber 7 and move about being provided with second kicker 21, the right side that cooperation second kicker 21 was provided with mounting groove second kicker 21 on the right valve body 3 supports and leans on the right side at right balance diaphragm 6, be provided with the second fluid delivery outlet 22 that is linked together with second fluid output chamber 20 on the right valve body 3, in this embodiment, second kicker 21 is circular, and the cross-section is the U-shaped, set up to the U-shaped can make second kicker 21 under the effect of fluid pressure, more steady removal.
the second fluid input control device comprises a second connecting seat 23 and a second end cap 24, a second control cavity 25 is formed between the second connecting seat 23 and the second end cap 24, a second fluid output channel 26 for communicating the second control cavity 25 with the second fluid output cavity 20 is arranged on the second connecting seat 23, a second fluid input port 27 communicated with the second control cavity 25 is arranged on the second connecting seat 23, a second piston member 28 for adjusting the section size of a channel b between the second control cavity 25 and the second fluid output channel 26 is arranged in the second control cavity 25, the pressure of the output fluid in the second fluid output cavity 20 is controlled by adjusting the section size of the channel b, a second compression spring 29 is arranged between the second piston member 28 and the second end cap 24, and mounting clamping grooves are respectively arranged on the second piston member 28 and the second end cap 24 in a manner of being matched with the second compression spring 29, the second piston member 28 includes a second piston main body 281, a second piston plate 282, and a second piston top post 283, the second piston plate 282 corresponds to the second fluid output channel 26, the channel b is formed by a gap between the second piston plate 282 and the inlet of the second fluid output channel 26, the second piston top post 283 penetrates the second connecting seat 23 and abuts against the right side of the second push plate 21, and the second connecting seat 23 and the second end cap 24 are respectively provided with a guiding structure in cooperation with the second piston member 28.
In this embodiment, the second connecting seat 23 is connected with the right valve body 3 in a clamping manner through a clamp spring, a sealing ring is arranged between the second connecting seat 23 and the right valve body 3, and of course, the second connecting seat 23 can also be connected with the right valve body 3 through a threaded structure; second connecting seat 23 is connected to second end cap 24 by a threaded structure including an external thread provided on second end cap 24 and an internal thread provided on second connecting seat 23, and a seal ring is provided between second connecting seat 23 and second end cap 24.
The balance control pressure input port 8 is connected with a balance pressure input pipe 30, a one-way valve 31 is arranged on the balance pressure input pipe 30, and the one-way valve 31 is used for preventing the backflow of pressure control gas introduced into the left movable cavity 5 and the right movable cavity 5.
In this embodiment, the left balance diaphragm 4 and the right balance diaphragm 6 are both rubber sheets, but other materials with elastic function may also be used.
In the present embodiment, the first fluid output channel 16 and the second fluid output channel 26 are uniformly arranged at a plurality of positions along the circumferential direction.
In the present embodiment, the first piston member 18 and the first end cap 14 form a first stabilization chamber 32 therebetween, and the first piston member 18 is provided with a first piston stabilization channel 184 for communicating the first fluid output channel 16 with the first stabilization chamber 32; a second stabilization chamber 33 is formed between the second piston member 28 and the second end cap 24, a second piston stabilization channel 284 for communicating the second fluid output channel 26 with the second stabilization chamber 33 is provided on the second piston member 28, and during operation, the fluid entering from both sides fills the first stabilization chamber 32 and the second stabilization chamber 33, respectively, so that the stability of the first piston member 18 and the second piston member 28 during operation can be improved, and the fluctuation of the output fluid pressure can be reduced.
A fluid balancing method adopting the balancing valve comprises the following steps:
respectively introducing fluid A and fluid B with different pressures into the first fluid input port 17 and the second fluid input port 27, and introducing pressure control gas into the balance control pressure input port 8, wherein the arrangement of the check valve 31 is used for placing the backflow of the pressure control gas to ensure that a relatively fixed fluid volume is stored in the check valve, so that the fluid A and the fluid B output from the first fluid output cavity 10 and the second fluid output cavity 20 can reach a balance state with the pressure control gas, namely the pressure of the output fluid A, the pressure of the output fluid B and the pressure of the pressure control gas are equal;
When the pressure of the output fluid a is reduced, that is, the pressure of the fluid in the first fluid output chamber 10 is reduced, the pressure of the pressure control gas pushes the left balance diaphragm 4 to the left, so that the first piston member 18 moves to the left, the sectional area of the channel of the fluid a is increased, and the pressure of the fluid in the first fluid output chamber 10 is increased until the pressure of the fluid is the same as that of the pressure control gas, that is, the pressure of the output fluid a is increased, and the gases at the two sides are balanced again;
When the pressure of the output B fluid is reduced, the output B fluid is also increased under the principle;
When the pressure of the output fluid A is increased, namely the pressure of the fluid in the first fluid output cavity 10 is increased, the left balance diaphragm 4 moves rightwards, the pressure of the pressure control gas is increased by the rightward movement of the balance diaphragm 4 because the pressure control gas cannot flow backwards, the increased pressure pushes the right balance diaphragm 6 to the right, so that the second piston member 28 moves rightwards, the sectional area of a channel of the fluid B is increased, the pressure of the fluid in the second fluid output cavity 20 is increased, namely the pressure of the output fluid B is increased, and the gases on the two sides are balanced again;
When the pressure of the output fluid B is increased, the output fluid A is also increased under the principle.
In addition, the adjustment of the output pressure of the fluid A and the fluid B can be realized by adjusting the pressure of the pressure control gas, when the pressure of the pressure control gas is increased, the output pressure of the fluid A and the output pressure of the fluid B are also increased, and conversely, when the pressure of the pressure control gas is reduced, the output pressure of the fluid A and the output pressure of the fluid B are also reduced.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. a balanced valve characterized by: the valve comprises a middle valve body, a left valve body and a right valve body, wherein the left valve body and the right valve body are arranged on two sides of the middle valve body;
A left balance diaphragm is arranged between the middle valve body and the left valve body, and the left balance diaphragm can be movably arranged in a left movable cavity formed between the middle valve body and the left valve body from left to right; a right balance diaphragm is arranged between the middle valve body and the right valve body, and the right balance diaphragm can be movably arranged in a right movable cavity formed between the middle valve body and the right valve body from left to right; the middle valve body is provided with a balance control pressure input port which is respectively communicated with the right side of the left movable cavity and the left side of the right movable cavity through a control pressure input channel;
The left valve body is provided with a first fluid output cavity on the left side of the left movable cavity, a first push sheet is arranged between the first fluid output cavity and the left movable cavity and can move left and right, the right side of the first push sheet is abutted against the left side of the left balance diaphragm, and a first fluid output port communicated with the first fluid output cavity is arranged on the left valve body;
The first fluid input control device comprises a first connecting seat and a first end cover, a first control cavity is formed between the first connecting seat and the first end cover, a first fluid output channel for communicating the first control cavity and the first fluid output cavity is arranged on the first connecting seat, the first connecting seat is provided with a first fluid input port communicated with the first control cavity, a first piston part for adjusting the cross-sectional size of the channel between the first control chamber and the first fluid outlet channel is arranged in the first control chamber, a first compression spring is arranged between the first piston piece and the first end cover, the first piston piece comprises a first piston main body, a first piston plate and a first piston top column, the first piston plate corresponds to the position of the first fluid output channel, and the first piston ejection column abuts against the left side of the first push sheet;
The right valve body is provided with a second fluid output cavity on the right side of the right movable cavity, a second push piece is arranged between the second fluid output cavity and the right movable cavity and can move left and right, the right side of the second push piece is abutted against the right side of the right balance diaphragm, and a second fluid output port communicated with the second fluid output cavity is arranged on the right valve body;
The second fluid input control device comprises a second connecting seat and a second end cover, a second control cavity is formed between the second connecting seat and the second end cover, a second fluid output channel for communicating the second control cavity and the second fluid output cavity is arranged on the second connecting seat, a second fluid input port communicated with the second control cavity is arranged on the second connecting seat, a second piston piece for adjusting the section size of a channel between the second control cavity and the second fluid output channel is arranged in the second control cavity, a second compression spring is arranged between the second piston piece and the second end cover, the second piston piece comprises a second piston main body, a second piston plate and a second piston top column, the second piston plate corresponds to the position of a second fluid output channel, and the second piston ejection column abuts against the right side of the second push sheet.
2. a balanced valve according to claim 1, characterized in that: the balance control pressure input port is connected with a balance pressure input pipe, and a check valve is arranged on the balance pressure input pipe.
3. a balanced valve according to claim 1, characterized in that: the left balance diaphragm and the right balance diaphragm are both rubber sheets.
4. A balanced valve according to claim 1, characterized in that: the first fluid output channel and the second fluid output channel are uniformly provided with a plurality of positions along the circumferential direction.
5. a balanced valve according to claim 1, characterized in that: a first stabilizing cavity is formed between the first piston piece and the first end cover, and a first piston stabilizing channel used for communicating the first fluid output channel with the first stabilizing cavity is arranged on the first piston piece; and a second stabilizing cavity is formed between the second piston piece and the second end cover, and a second piston stabilizing channel used for communicating the second fluid output channel with the second stabilizing cavity is arranged on the second piston piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591963.1U CN209800809U (en) | 2019-04-28 | 2019-04-28 | balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591963.1U CN209800809U (en) | 2019-04-28 | 2019-04-28 | balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800809U true CN209800809U (en) | 2019-12-17 |
Family
ID=68831283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920591963.1U Withdrawn - After Issue CN209800809U (en) | 2019-04-28 | 2019-04-28 | balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973693A (en) * | 2019-04-28 | 2019-07-05 | 张家港保税区昊大微控技术有限公司 | A kind of balanced valve and fluid balance method |
-
2019
- 2019-04-28 CN CN201920591963.1U patent/CN209800809U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973693A (en) * | 2019-04-28 | 2019-07-05 | 张家港保税区昊大微控技术有限公司 | A kind of balanced valve and fluid balance method |
| CN109973693B (en) * | 2019-04-28 | 2023-12-29 | 张家港保税区昊大微控技术有限公司 | Balancing valve and fluid balancing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20231229 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20231229 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |