CN218992434U

CN218992434U - Bypass valve

Info

Publication number: CN218992434U
Application number: CN202320024693.2U
Authority: CN
Inventors: 王蓉; 韩运朝; 迟友为; 朱默
Original assignee: Shanghai Canzhou Environmental Engineering Co ltd
Current assignee: Shanghai Canzhou Environmental Engineering Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-09
Anticipated expiration: 2033-01-05

Abstract

The utility model discloses a bypass valve, which relates to the technical field of bypass valve assembly and comprises a bypass valve body, wherein the bypass valve body comprises an air cylinder, a valve rod is fixedly arranged on an output shaft of the air cylinder, the bottom of the valve rod is positioned in an inner cavity of the bypass valve body, the middle end of the outer wall of the top of the bypass valve body is provided with a leakage-proof adhesive tape, the outer wall of the leakage-proof adhesive tape is overlapped with the outer wall of the valve rod, and the bypass valve body comprises an air outlet upper box body. When the two valve bodies are positioned at the lower part of the air inlet middle box body, smoke flows in from the air inlet middle box body and flows out from the first air outlet on the outer wall of the air outlet upper box body, when the air cylinder receives a control command to lift the valve rod, the two valve bodies can be lifted to the upper part of the air inlet middle box body to block the smoke from flowing upwards, and then flows out from the air outlet lower box body through the second air outlet, so that the problems of reasonable planning of the flow direction of the smoke channel, simple structure, simplicity in operation and reduction of the smoke flow loss are achieved.

Description

Bypass valve

Technical Field

The utility model relates to the technical field of bypass valve assembly, in particular to a bypass valve.

Background

The bypass valve comprises a pressure reducing valve, a control valve, a steam trap, a flue gas bypass valve and the like, a bypass pipe is usually additionally arranged, the valve arranged on the bypass pipe is called a bypass valve, the term of the bypass valve refers to the valve arranged on the bypass pipe, the type and the structure of the valve are not specified, and the exhaust is controlled by utilizing the bypass valve in the flue gas exhaust. The following problems exist in the prior art:

because in the design of the existing flue flow, the problems that the flue gas at the outlet of a certain device needs to be led to more than one device, the on-site flue stacking is disordered, the device structure is not simplified enough, the operation is repeated, the flue gas flow is lost and the like are often encountered.

Disclosure of Invention

The present utility model provides a bypass valve to solve the above-mentioned problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a bypass valve, includes the bypass valve main part, the bypass valve main part is including the cylinder, fixed mounting has the valve rod on the output shaft of cylinder, the bottom of valve rod is located the inner chamber of bypass valve main part, the top outer wall middle-end of bypass valve main part is provided with leak protection adhesive tape, the outer wall overlap joint of leak protection adhesive tape and the outer wall of valve rod, the bypass valve main part is including the last box of giving vent to anger, the gas outlet one has been seted up to the outer wall of going up the box of giving vent to anger, the middle-end of bypass valve main part is provided with the middle box of admitting air, the bottom of bypass valve main part is provided with the lower box of giving vent to anger, the outer wall of the lower box of giving vent to anger is provided with the gas outlet two, the below outer wall of valve rod is provided with the valve body.

The technical scheme of the utility model is further improved as follows: the inner wall of the bypass valve main body is provided with a corrosion-resistant layer, the inner wall of the middle end of the bypass valve main body is fixedly provided with a valve body clamping plate, the inner cavity of the valve body is fixedly provided with a compression spring, and the outer wall of the top of the compression spring is fixedly provided with an extrusion plate.

The technical scheme of the utility model is further improved as follows: the rubber gasket is fixedly installed in the outer wall groove of the valve body clamping plate, and the outer wall of the extrusion plate is clamped with the outer wall of the rubber gasket.

The technical scheme of the utility model is further improved as follows: the inner wall fixed mounting of valve body cardboard has the slide bar, the outer wall sliding connection of slide bar has the slider, the outer wall fixed mounting of slider has the spring.

The technical scheme of the utility model is further improved as follows: the bottom outer wall of spring and the inner wall fixed connection of valve body cardboard, the top movable mounting of slider has the movable rod.

The technical scheme of the utility model is further improved as follows: the top movable mounting of movable rod has the clamp plate, the top outer wall of clamp plate and the outer wall recess joint of valve body.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a bypass valve, which adopts the matching of an upper air outlet box body, a first air outlet, a middle air inlet box body, a lower air outlet box body, a second air outlet, valve bodies, an air cylinder and a valve rod, when two valve bodies are positioned at the lower part of the middle air inlet box body, smoke flows in from the middle air inlet box body and flows out from the first air outlet of the outer wall of the upper air outlet box body, when the air cylinder receives a control command to lift the valve rod, the two valve bodies can be lifted to the upper part of the middle air inlet box body to block the smoke from flowing upwards, and then flow out from the lower air outlet box body through the second air outlet, so that the problems of messy stacking of a flue on site, insufficient equipment structure, repeated operation, smoke flow loss and the like are solved, the problems of reasonably planning the flow direction of the flue, simplifying the structure and reducing the smoke flow loss are solved.

2. The utility model provides a bypass valve, which is matched with a compression spring, an extrusion plate, a valve body clamping plate, a rubber pad, a pressing plate, a sliding rod, a movable rod, a sliding block and a spring, when two valve bodies move to the position of the valve body clamping plate, the extrusion plate is extruded by the compression spring and clamped into an outer wall groove of the valve body clamping plate to be tightly attached to the rubber pad, and meanwhile, the pressing plate is extruded by the outer wall of the valve body, so that the pressing plate drives the sliding block to slide on the sliding rod to extrude the spring to generate elasticity by extruding the movable rod, and the pressing plate is tightly clamped into the outer wall groove of the valve body, thereby improving the sealing property of the valve body to smoke and preventing smoke leakage.

Drawings

FIG. 1 is a schematic overall view of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a bypass valve body of the present utility model;

FIG. 3 is a schematic cross-sectional view of a valve body of the present utility model;

fig. 4 is an enlarged schematic view at a.

In the figure: 1. a bypass valve body; 11. the upper box body of the air outlet; 111. an air outlet I; 12. an air inlet middle box body; 13. a lower box body is discharged; 131. a second air outlet; 14. a leakage-proof adhesive tape; 15. a valve body; 151. a compression spring; 152. an extrusion plate; 16. a corrosion resistant layer; 17. a valve body clamping plate; 171. a rubber pad; 172. a pressing plate; 173. a slide bar; 174. a movable rod; 175. a slide block; 176. a spring; 2. a cylinder; 21. a valve rod.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-4, the utility model provides a bypass valve, which comprises a bypass valve main body 1, wherein the bypass valve main body 1 comprises an air cylinder 2, a valve rod 21 is fixedly arranged on an output shaft of the air cylinder 2, the bottom of the valve rod 21 is positioned in an inner cavity of the bypass valve main body 1, the middle end of the outer wall of the top of the bypass valve main body 1 is provided with a leakage-proof adhesive tape 14, the outer wall of the leakage-proof adhesive tape 14 is overlapped with the outer wall of the valve rod 21, the bypass valve main body 1 comprises an air outlet upper box body 11, the outer wall of the air outlet upper box body 11 is provided with an air outlet one 111, the middle end of the bypass valve main body 1 is provided with an air inlet middle box body 12, the bottom of the bypass valve main body 1 is provided with an air outlet lower box body 13, the outer wall of the air outlet lower box body 13 is provided with an air outlet two 131, and the outer wall below the valve rod 21 is provided with a valve body 15.

In this embodiment, when the two valve bodies 15 are located at the lower part of the air inlet middle box body 12, the smoke flows in from the air inlet middle box body 12 and flows out from the first air outlet 111 of the outer wall of the air outlet upper box body 11, when the air cylinder 2 receives the control command to lift the valve rod 21, the two valve bodies 15 will lift to the upper part of the air inlet middle box body 12 to block the smoke from flowing upwards, and then flow out from the air outlet lower box body 13 through the second air outlet 131, the leakage-proof rubber strip 14 is made of rubber material, and the gap between the valve rod 21 and the outer wall of the top of the bypass valve body 1 is prevented from leaking smoke.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the inner wall of the bypass valve main body 1 is provided with a corrosion-resistant layer 16, the inner wall of the middle end of the bypass valve main body 1 is fixedly provided with a valve body clamping plate 17, the inner cavity of the valve body 15 is fixedly provided with a compression spring 151, the outer wall of the top of the compression spring 151 is fixedly provided with a squeezing plate 152, the inner wall of the groove of the outer wall of the valve body clamping plate 17 is fixedly provided with a rubber pad 171, and the outer wall of the squeezing plate 152 is clamped with the outer wall of the rubber pad 171.

In this embodiment, the corrosion-resistant layer 16 is made of polytetrafluoroethylene material, so that the corrosion resistance is extremely strong, when the two valve bodies 15 move to the position of the valve body clamping plate 17, the compression springs 151 squeeze the squeeze plate 152, and the squeeze plate is clamped into the groove on the outer wall of the valve body clamping plate 17 to be tightly attached to the rubber pad 171, so that the tightness of the valve bodies 15 is improved.

Example 3

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the inner wall fixed mounting of valve body cardboard 17 has slide bar 173, and slide bar 173's outer wall sliding connection has slider 175, and slider 175's outer wall fixed mounting has spring 176, and spring 176's bottom outer wall and valve body cardboard 17's inner wall fixed connection, slider 175's top movable mounting has movable rod 174, and movable rod 174's top movable mounting has clamp plate 172, clamp plate 172's top outer wall and valve body 15's outer wall recess joint.

In this embodiment, when the pressing plate 152 is clamped into the valve body clamping plate 17, the pressing plate 172 is pressed by the outer wall of the valve body 15, so that the pressing plate 172 drives the sliding block 175 to slide on the sliding rod 173 to generate elasticity by pressing the movable rod 174, and the pressing plate 172 is clamped into the groove of the outer wall of the valve body 15, so as to further improve the tightness of the valve body 15.

The working principle of the bypass valve will be described in detail.

As shown in fig. 1-4, when two valve bodies 15 are positioned at the lower part of the air inlet middle box body 12, smoke flows in from the air inlet middle box body 12 and flows out from the first air outlet 111 of the outer wall of the air outlet upper box body 11, when the air cylinder 2 receives a control command to lift the valve rod 21, the two valve bodies 15 are lifted to the upper part of the air inlet middle box body 12 to block the upward circulation of the smoke, and then flow out from the air outlet lower box body 13 through the second air outlet 131, when the two valve bodies 15 move to the position of the valve body clamping plate 17, the compression spring 151 presses the compression plate 152 and clamps the outer wall groove of the valve body clamping plate 17 to be tightly fixed with the rubber gasket 171, meanwhile, the pressing plate 172 presses the movable rod 174 through the outer wall of the valve body 15, the sliding plate 172 is driven to slide the sliding and the compression spring 176 on the sliding rod 173 to generate elasticity, and the pressing plate 172 is clamped into the outer wall groove of the valve body 15, so that the tightness is further improved.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. A bypass valve comprising a bypass valve body (1), characterized in that: the bypass valve body (1) is including cylinder (2), fixed mounting has valve rod (21) on the output shaft of cylinder (2), the bottom of valve rod (21) is located the inner chamber of bypass valve body (1), the top outer wall middle-end of bypass valve body (1) is provided with leak protection adhesive tape (14), the outer wall overlap joint of leak protection adhesive tape (14) and valve rod (21), bypass valve body (1) is including last box (11) of giving vent to anger, go up box (11)'s of giving vent to anger the outer wall and offered gas outlet one (111), the middle-end of bypass valve body (1) is provided with middle box (12) of admitting air, the bottom of bypass valve body (1) is provided with box (13) under giving vent to anger, the outer wall of box (13) is provided with gas outlet two (131) under giving vent to anger, the below outer wall of valve rod (21) is provided with valve body (15).

2. A bypass valve as defined in claim 1, wherein: the inner wall of bypass valve main part (1) is provided with corrosion-resistant layer (16), the middle-end inner wall fixed mounting of bypass valve main part (1) has valve body cardboard (17), the inner chamber fixed mounting of valve body (15) has compression spring (151), compression spring (151) top outer wall fixed mounting has stripper plate (152).

3. A bypass valve as defined in claim 2, wherein: a rubber pad (171) is fixedly installed in the outer wall groove of the valve body clamping plate (17), and the outer wall of the extrusion plate (152) is clamped with the outer wall of the rubber pad (171).

4. A bypass valve as recited in claim 3, wherein: the inner wall of the valve body clamping plate (17) is fixedly provided with a sliding rod (173), the outer wall of the sliding rod (173) is connected with a sliding block (175) in a sliding mode, and the outer wall of the sliding block (175) is fixedly provided with a spring (176).

5. A bypass valve as defined in claim 4, wherein: the bottom outer wall of the spring (176) is fixedly connected with the inner wall of the valve body clamping plate (17), and a movable rod (174) is movably mounted at the top of the sliding block (175).

6. A bypass valve as defined in claim 5, wherein: the top movable mounting of movable rod (174) has clamp plate (172), the top outer wall of clamp plate (172) and the outer wall recess joint of valve body (15).