CN111457113A - Variable air volume butterfly valve - Google Patents
Variable air volume butterfly valve Download PDFInfo
- Publication number
- CN111457113A CN111457113A CN202010382895.5A CN202010382895A CN111457113A CN 111457113 A CN111457113 A CN 111457113A CN 202010382895 A CN202010382895 A CN 202010382895A CN 111457113 A CN111457113 A CN 111457113A
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- CN
- China
- Prior art keywords
- butterfly valve
- air
- valve body
- control box
- nozzles
- Prior art date
- 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.)
- Pending
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
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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
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention belongs to the technical field of butterfly valve equipment, and particularly discloses a variable air volume butterfly valve which comprises a butterfly valve body, wherein the whole butterfly valve body is of a cuboid structure, the front part of the butterfly valve body is provided with a flow cavity, a nozzle fixing pipe is arranged in the flow cavity, nozzles are symmetrically arranged in the nozzle fixing pipe, the top ends of the flow cavity are symmetrically provided with air nozzles, the air nozzles are connected with the nozzles, the air nozzles are connected through an air pipe and an air nozzle tee joint, the rear part of the butterfly valve body is provided with an adjusting cavity, a valve block is arranged at the middle part of the adjusting cavity in a downward mode, valve rods are symmetrically arranged on two sides of the adjusting cavity, the valve block is connected with the valve. The invention can be connected with a plurality of nozzles in parallel according to the size of the valve, each nozzle is provided with an air nozzle, the air nozzles take pressure in each flow cavity and finally collect the pressure into an air pipe to be connected into the control mainboard, and the measured pressure is more accurate, thereby obtaining high-precision flow data.
Description
Technical Field
The invention relates to the field of butterfly valve equipment, in particular to a variable air volume butterfly valve.
Background
The existing technical scheme is a common variable air volume butterfly valve, namely a cross-shaped or rod-shaped pitot tube flow sensor is used for self flow feedback, the measurement accuracy of the flow measurement of the type is poor under low wind speed, the control accuracy of the butterfly valve is poor, and the requirement of high-response speed and high-accuracy control in a laboratory environment cannot be met.
The control box of the common variable air volume butterfly valve is of a cuboid structure, a large space is needed when the butterfly valve is opened, and the opening angle is limited in places with dense air pipes. The variable air volume butterfly valve is designed to solve the problems.
Disclosure of Invention
The invention aims to provide an air volume variable butterfly valve, which aims to solve the problems that the traditional butterfly valve flow sensor provided by the background technology has low measurement precision, slow response speed and inaccurate data; meanwhile, the valve control box occupies a large space and leaves the factory without a flange, so that the valve control box is inconvenient to install and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a variable air volume butterfly valve comprises a butterfly valve body, a flow cavity and an adjusting cavity, wherein the butterfly valve body is integrally of a cuboid structure, the front part of the butterfly valve body is provided with the flow cavity, a nozzle fixing pipe is installed in the flow cavity, nozzles are symmetrically installed in the nozzle fixing pipe, air faucets are symmetrically arranged at the top end of the flow cavity and are connected with the nozzles, the air faucets are connected with one another through air pipes and air nozzle tee joints, the rear part of the butterfly valve body is provided with the adjusting cavity, a valve block is arranged at the middle part of the adjusting cavity and is leaned against the lower part, the area of the valve block is the same as the rectangular area of the inner diameter section of the butterfly valve body at the middle part, valve rods are symmetrically arranged at two sides of the adjusting cavity, the valve block is connected with the valve rods, the valve rods, the air faucet tee joint is connected with the control box through an air pipe, and the actuator is connected with the control box.
Preferably, a plurality of first air holes and a plurality of second air holes are formed in the nozzle, the first air holes are perpendicular to the butterfly valve body, and the second air holes are parallel to the butterfly valve body.
Preferably, the air faucet is installed at one side of the inner side of the nozzle.
Preferably, the front side and the rear side of the butterfly valve body are symmetrically provided with mounting flanges.
Preferably, the section of the valve plate is rectangular, and the valve plate is of a split multi-blade structure.
Preferably, the rotation angle of the rotating device is 0-90 degrees.
Preferably, a control main board is arranged inside the control box, and the air pipe and the actuator are connected with the control main board.
Preferably, the control box is of a square structure, the control box cover is obliquely arranged on the control box, and a buckle is arranged at an opening at the front part of the control box cover.
Compared with the prior art, the invention has the beneficial effects that: the invention belongs to the technical field of butterfly valve equipment, and particularly discloses a variable air volume butterfly valve.A plurality of nozzles are arranged on a butterfly valve body in parallel, each nozzle is provided with an air nozzle, the air nozzles take pressure in each flow cavity and finally collect the pressure into an air pipe to be connected with a control mainboard, and the measured pressure is more accurate, so that high-precision flow data is obtained; meanwhile, the control box which is originally rotationally opened is set to be inclined pinch plate opening, and meanwhile, the inclined pinch plate opening avoids the space required by original rotation, and the control box is better installed so as to control the valve control flow; the invention has simple structure, convenient operation and strong practicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an air faucet tee of the present invention;
FIG. 3 is a schematic view of a mouthpiece fixing section of the present invention;
FIG. 4 is a schematic view of a nozzle of the present invention;
in the figure: 1. a butterfly valve body; 2. a flow chamber; 3. an adjustment chamber; 4. a nozzle fixing tube; 5. a nozzle; 6. an air tap; 7. an air tube; 8. an air tap tee joint; 9. a valve plate; 10. a valve stem; 11. an actuator; 12. a rotating device; 13. a mounting frame; 14. a control box; 15. a first air hole; 16. a second air hole; 17. installing a flange; 18. a control box cover; 19. and (5) buckling.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, 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 by those skilled in the art according to specific situations.
Referring to fig. 1-4, the present invention provides a technical solution: a variable air volume butterfly valve comprises a butterfly valve body 1, a flow cavity 2 and an adjusting cavity 3, wherein the whole butterfly valve body 1 is of a cuboid structure, the front part of the butterfly valve body 1 is provided with the flow cavity 2, a nozzle fixing pipe 4 is installed in the flow cavity 2, nozzles 5 are symmetrically installed in the nozzle fixing pipe 4, air nozzles 6 are symmetrically arranged at the top end of the flow cavity 2, the air nozzles 6 are connected with the nozzles 5, the air nozzles 6 are connected with an air nozzle tee joint 8 through an air pipe 7, the rear part of the butterfly valve body 1 is provided with the adjusting cavity 3, a valve block 9 is arranged at the middle part of the adjusting cavity 3 in a lower mode, the area of the valve block 9 is the same as the rectangular area of the inner diameter section of the butterfly valve body 1, valve rods 10 are symmetrically arranged at two sides of the adjusting cavity 3, the valve block 9 is connected with the valve rods 10, the executor 11 is fixed at the regulation chamber 3 lateral wall through executor mounting bracket 13, 1 lateral wall of butterfly valve body is provided with control box 14, air cock tee bend 8 passes through trachea 7 and connects control box 14, executor 11 is connected with control box 14.
Further, be provided with a plurality of first gas pockets 15 and a plurality of second gas pocket 16 in mouthpiece 5, first gas pocket 15 perpendicular to butterfly valve body 1, second gas pocket 16 is on a parallel with butterfly valve body 1, according to the different models of valve, adopts a plurality of mouthpieces 5 to carry out flow measurement, every mouthpiece 5 all sets up air cock 6 and carries out pressure data and obtains, the first gas pocket of perpendicular to valve body and the second gas pocket that is on a level with the valve body, gas forms pressure after getting into first gas pocket and second gas pocket, the pressure in first gas pocket and second gas pocket is received respectively to two gas pockets of air cock, transmit pressure to the control mainboard, can obtain the pipeline velocity of flow through calculating behind the pressure value that the control mainboard surveyed.
Further, the air tap is installed on one side of the inner side of the nozzle.
Furthermore, the mounting flanges 17 are symmetrically arranged on the front side and the rear side of the butterfly valve body 1, so that the butterfly valve body is convenient to mount.
Further, the section of the valve plate 9 is rectangular, and the valve plate 9 is of a split multi-blade structure.
Further, the rotation angle of the rotating device 12 is 0-90 degrees.
Further, a control main board is arranged inside the control box 14, and the air pipe 7 and the actuator 11 are connected with the control main board.
Further, control box 14 is square structure, and control box lid 18 slope sets up on control box 14, the anterior opening part of control box lid 18 is equipped with buckle 19, sets up the control box that originally rotates to open into the tilting buckle and opens, and the tilting buckle is opened simultaneously and has been avoided originally rotatory required space, better installation control box.
The working principle is as follows: the invention relates to an air volume variable butterfly valve, when in use, the mounting flange 17 arranged at the front side and the rear side of the butterfly valve body 1 can effectively facilitate the mounting and dismounting of the butterfly valve body 1, after the butterfly valve body 1 is mounted, the gas passes through a nozzle 5 in a nozzle fixing pipe 4 of a flow cavity 2, the nozzle 5 is arranged in parallel, a first air hole 15 and a second air hole 16 are arranged in the nozzle 5, the first air hole 15 is vertical to the butterfly valve body 1, the second air hole 16 is parallel to the butterfly valve body 1, the gas generates pressure in the nozzle 5, the first air hole 15 and the second air hole 16 transmit the gas through an air nozzle 6 arranged at one side of the inner side of the nozzle 5 to provide a stable pressure state, the air nozzle 6 transmits the gas to a control box 14 through an air pipe 7 and an air nozzle tee joint 8, the gas pressure is measured and calculated through a control mainboard to obtain the flow rate of a pipeline, a plurality of nozzles 5 can be, every mouthpiece 5 is equipped with an air cock 6, air cock 6 is got pressure in each mouthpiece 5, finally collect and insert the control mainboard for 7 access control of trachea, thereby make the pressure that records more accurate, thereby obtain the flow data of high accuracy, thereby provide accurate flow information, the control mainboard can control executor 11 work, executor 11 work is controlled and is rotated 12 work, rotating device 12 work can drive valve rod 10 and carry out 0-90 degrees rotation, valve rod 10 rotates and drives the valve block 9 that sets up in adjusting chamber 2 and rotate, thereby the flow of regulating gas through butterfly valve body 1, convenient regulation, the control box lid 18 slope setting of setting, set up the control box that originally rotatory was opened into the tilting buckle and open, the required space of original rotation has been avoided to the tilting buckle opening simultaneously, better installation control box.
It is worth noting that: whole device realizes control to it through control box and control mainboard, because the equipment that control box and control mainboard match is equipment commonly used, belongs to current well-being technique, no longer gives unnecessary details its electric connection relation and specific circuit structure here.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a variable air volume butterfly valve which characterized in that: the butterfly valve comprises a butterfly valve body (1), a flow cavity (2) and an adjusting cavity (3), wherein the butterfly valve body (1) is integrally of a cuboid structure, the front portion of the butterfly valve body (1) is arranged to be the flow cavity (2), a nozzle fixing pipe (4) is installed in the flow cavity (2), nozzles (5) are symmetrically installed in the nozzle fixing pipe (4), air nozzles (6) are symmetrically arranged at the top end of the flow cavity (2), the air nozzles (6) are connected with the nozzles (5), the air nozzles (6) are connected with each other through air pipes (7) and air nozzle tee joints (8), the adjusting cavity (3) is arranged at the rear portion of the butterfly valve body (1), a valve block (9) is arranged at the middle portion of the adjusting cavity (3) in a leaning manner, the area of the valve block (9) is the same as the rectangular area of the inner diameter section of the butterfly valve body (1) at the position, valve rods, valve block (9) are connected with valve rod (10), install on rotating device (12) of executor (11) valve rod (10), executor (11) are fixed through executor mounting bracket (13) and are being adjusted chamber (3) lateral wall, butterfly valve body (1) lateral wall is provided with control box (14), air cock tee bend (8) are through trachea (7) connection control box (14), executor (11) are connected with control box (14).
2. The variable air volume butterfly valve of claim 1, wherein: be provided with a plurality of first gas holes (15) and a plurality of second gas hole (16) in mouthpiece (5), first gas hole (15) perpendicular to butterfly valve body (1), second gas hole (16) are on a parallel with butterfly valve body (1).
3. The variable air volume butterfly valve of claim 1, wherein: the air tap (6) is arranged on one side of the inner side of the nozzle (5).
4. The variable air volume butterfly valve of claim 1, wherein: the front side and the rear side of the butterfly valve body (1) are symmetrically provided with mounting flanges (17).
5. The variable air volume butterfly valve of claim 1, wherein: the section of the valve plate (9) is rectangular, and the valve plate (9) is of a split multi-blade structure.
6. The variable air volume butterfly valve of claim 1, wherein: the rotating angle of the rotating device (12) is 0-90 degrees.
7. The variable air volume butterfly valve of claim 1, wherein: the control box (14) is internally provided with a control main board, and the air pipe (7) and the actuator (11) are connected with the control main board.
8. The variable air volume butterfly valve of claim 1, wherein: the control box (14) is of a square structure, a control box cover (18) is obliquely arranged on the control box (14), and a buckle (19) is arranged at an opening at the front part of the control box cover (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010382895.5A CN111457113A (en) | 2020-05-08 | 2020-05-08 | Variable air volume butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010382895.5A CN111457113A (en) | 2020-05-08 | 2020-05-08 | Variable air volume butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111457113A true CN111457113A (en) | 2020-07-28 |
Family
ID=71676509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010382895.5A Pending CN111457113A (en) | 2020-05-08 | 2020-05-08 | Variable air volume butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111457113A (en) |
-
2020
- 2020-05-08 CN CN202010382895.5A patent/CN111457113A/en active Pending
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