Environment-friendly chemical air pressure isolating valve
The environmentally friendly chemical gas pressure isolation valve addresses poor sealing and smoothness issues by incorporating a cleaning mechanism to remove impurity particles, ensuring effective sealing and smooth operation through a transfer part and cleaning isolation system.
Patent Information
- Application Number
- CN202420959554.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing environmentally friendly chemical gas pressure isolation valves suffer from poor sealing and smoothness due to impurity particles adhering to the valve member and inner wall of the valve shell, affecting their performance during closure and operation.
The valve incorporates a transfer part with a channel, adjustment part, and cleaning isolation part, featuring a screw rod, rotating wheel, and scraper block to clean impurity particles from the inner wall, ensuring smooth operation and sealing by displacing the valve block to clean and prevent particle accumulation.
The design ensures effective sealing and smooth operation by cleaning impurity particles from the valve member and inner wall, maintaining valve performance during closure and opening, thus preventing particle adhesion and ensuring uninterrupted operation.
Smart Images
Figure CN222185843U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical industry, in particular to an environmentally friendly chemical gas pressure isolation valve. Background Art
[0002] The isolation valve is used to isolate the fluid. The pneumatic isolation valve is needed in the chemical and environmental protection industry. It is a special valve installed in the subsequent process of chemical production. It is installed between the exhaust gas discharge port of the production line and the exhaust gas treatment and recycling system. It is used to cut off the exhaust gas from entering the exhaust gas treatment and recycling system during maintenance to prevent toxic exhaust gas from harming the maintenance personnel or being directly discharged into the atmosphere without treatment.
[0003] Since the air pressure isolation valve is arranged between the exhaust gas discharge port and the exhaust gas treatment equipment, the exhaust gas passing through the air pressure isolation valve will be mixed with a large amount of impurity particles. These impurity particles will adhere to the valve parts and the inner wall surface of the valve shell of the isolation valve, thereby affecting the sealing effect between the valve parts and the inner wall of the valve shell when the isolation valve is closed, and will also affect the smoothness of the isolation valve switch. Therefore, based on the above problems, an environmentally friendly chemical air pressure isolation valve is proposed. Utility Model Content
[0004] The utility model aims to provide an environmentally friendly chemical gas pressure isolation valve to solve the problem that the existing environmentally friendly chemical gas pressure isolation valve is affected by the exhaust gas introduced, and the impurity particles in the exhaust gas will adhere to the valve member and the inner wall of the valve shell, resulting in poor sealing effect between the valve member and the inner wall of the valve shell when the isolation valve is closed and poor smoothness when opening and closing.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An environmentally friendly chemical gas pressure isolation valve comprises a transfer part, an air inlet pipe and an air outlet pipe, wherein the transfer part is arranged between the air inlet pipe and the air outlet pipe, the transfer part comprises a shell, a vertically arranged channel is provided on the inner side of the shell, an air inlet is provided on the lower left side of the channel, an air outlet is provided on the middle right side of the channel, the air inlet pipe is connected with the air inlet, the air outlet pipe is connected with the air outlet, an expansion groove is provided on the right side of the channel, a rail opening is provided on the left side of the channel, an adjustment part is installed on the inner side of the expansion groove, and the adjustment part comprises a screw rod. A screw rod is rotatably connected in the upper hole of the expansion groove, and a rotating wheel is fixedly connected to the upper end of the screw rod, a screw block is spirally connected to the outer side of the screw rod, a connecting block is fixedly connected to the outer side of the screw block, a valve block slidably connected to the channel is fixedly connected to the lower side of the left end of the connecting block, a cleaning isolation part is installed on the left side of the shell, the cleaning isolation part includes a fixing frame fixedly connected to the left side of the shell, a limiting rod is slidably connected to the inner side of the plate hole of the fixing frame, a scraper block slidably connected to the rail mouth is fixedly connected to the right end of the limiting rod, and a spring is sleeved on the outer side of the limiting rod.
[0007] Preferably, the channel is a circular slide structure, the valve block is a circular column block structure, the inner diameter of the channel is the same as the diameter of the valve block, and the inner wall of the channel fits tightly with the outer curved surface of the valve block.
[0008] Preferably, an air vent is provided on the upper side of the channel, the air vent of the channel is arranged on the upper side of the valve block, the air inlet is arranged on the lower left side of the valve block, and the air outlet is arranged on the right side of the valve block.
[0009] Preferably, the threaded portion of the screw rod is arranged on the inner side of the expansion groove, the width dimension of the connecting block is the same as the groove width dimension of the expansion groove, and the front and rear end surfaces of the connecting block are both in contact with the inner wall of the expansion groove.
[0010] Preferably, the limit rod is composed of a round block and a square rod, the plate hole of the fixing frame is a square hole structure, the spring is arranged between the plate of the fixing frame and the outer end face of the scraper block, the outer end face of the scraper block is tightly fitted with the inner wall of the rail mouth, the right end of the scraper block is a semi-conical block structure, the lower end of the valve block is arranged as a guide inclined surface, and the inclined surface angle of the scraper block is the same as the inclined surface angle of the valve block.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, by setting structures such as the transfer part, the adjustment part, the valve block and the cleaning isolation part, the valve block in the displaced downward state can block the circulation of the exhaust gas on the one hand, and can clean the inner wall of the channel on the other hand to prevent the impurity particles on the inner wall of the channel from affecting the sealing of the valve block and the channel to the air outlet. The cleaned impurity particles will be attached and accumulated on the lower inclined surface of the valve block in large quantities. When the valve block is displaced upward, the accumulated impurity particles can be cleaned by the cleaning isolation part, so that the next downward displacement of the valve block can remain unobstructed, and the environmentally friendly chemical gas pressure isolation valve can clean the impurity particles attached to the valve member and the inner wall of the valve shell when switching, so as to ensure the sealing performance of the isolation valve when closing and the smooth performance when switching, and solve the problem that the existing environmentally friendly chemical gas pressure isolation valve is affected by the exhaust gas introduced, and the impurity particles in the exhaust gas will adhere to the valve member and the inner wall of the valve shell, resulting in poor sealing effect between the valve member and the inner wall of the valve shell when the isolation valve is closed and poor smoothness when switching. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;
[0015] Figure 3It is a structural schematic diagram of the transfer part of the utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the cleaning isolation part of the utility model;
[0017] Figure 5 It is a structural schematic diagram of the adjustment part of the utility model;
[0018] Figure 6 For this utility model Figure 1 Schematic diagram of the opening structure.
[0019] In the figure: 1. transfer part; 11. shell; 12. channel; 13. air inlet; 14. air outlet; 15. expansion slot; 16. rail mouth; 2. air inlet pipe; 3. air outlet pipe; 4. adjustment part; 41. screw rod; 42. screw block; 43. connecting block; 44. rotating wheel; 5. valve block; 6. cleaning isolation part; 61. fixing frame; 62. limiting rod; 63. scraper block; 64. spring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0023] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0026] See also Figure 1-6 , the utility model provides a technical solution:
[0027] The environmentally friendly chemical gas pressure isolation valve comprises a transfer part 1, an air inlet pipe 2 and an air outlet pipe 3. The transfer part 1 is arranged between the air inlet pipe 2 and the air outlet pipe 3. The transfer part 1 comprises a shell 11. A vertically arranged channel 12 is provided on the inner side of the shell 11. An air inlet 13 is provided on the lower left side of the channel 12. An air outlet 14 is provided on the middle right side of the channel 12. The air inlet pipe 2 is connected to the air inlet 13. The air outlet pipe 3 is connected to the air outlet 14. An expansion groove 15 is provided on the right side of the channel 12. A rail opening 16 is provided on the left side of the channel 12. An adjusting part 4 is installed on the inner side of the expansion groove 15. The adjusting part 4 comprises a screw rod 41. The expansion groove A screw rod 41 is rotatably connected in the upper hole of 15, and a rotating wheel 44 is fixedly connected to the upper end of the screw rod 41. A screw block 42 is spirally connected to the outer side of the screw rod 41, and a connecting block 43 is fixedly connected to the outer side of the screw block 42. A valve block 5 slidably connected to the channel 12 is fixedly connected to the lower side of the left end of the connecting block 43. A cleaning isolation part 6 is installed on the left side of the shell 11. The cleaning isolation part 6 includes a fixing frame 61 fixedly connected to the left side of the shell 11, and a limiting rod 62 is slidably connected to the inner side of the plate hole of the fixing frame 61. A scraper block 63 slidably connected to the rail mouth 16 is fixedly connected to the right end of the limiting rod 62, and a spring 64 is sleeved on the outer side of the limiting rod 62.
[0028] The channel 12 is a circular slide structure, and the valve block 5 is a circular column block structure. The inner diameter of the channel 12 is the same as the diameter of the valve block 5. The inner wall of the channel 12 fits tightly with the outer curved surface of the valve block 5. Through this arrangement, the valve block 5 and the channel 12 can seal the air outlet 14, so that the displacement of the valve block 5 from top to bottom can clean the inner wall of the channel 12; a vent hole is opened on the upper side of the channel 12, and the vent hole of the channel 12 is arranged on the upper side of the valve block 5. The valve block 5 can be displaced upward through the vent hole. The air inlet 13 is arranged on the lower left side of the valve block 5, and the air outlet 14 is arranged on the right side of the valve block 5. The positions of the various openings are arranged so that the exhaust gas will not pass through the valve block 5 to reach the vent hole; the threaded parts of the screw rod 41 are all arranged on the inner side of the expansion groove 15, the width of the connecting block 43 is the same as the groove width of the expansion groove 15, and the front and rear end faces of the connecting block 43 are both aligned with the inner wall of the expansion groove 15 The limit rod 62 is composed of a round block and a square rod, and the plate hole of the fixing frame 61 is a square hole structure. The scraper block 63 can be limited and guided by this arrangement, so that the scraper block 63 can only be displaced laterally and cannot rotate. The spring 64 is arranged between the plate of the fixing frame 61 and the outer end surface of the scraper block 63. The scraper block 63 without obstruction can be pushed into the channel 12 by this arrangement. The outer end surface of the scraper block 63 is tightly fitted with the inner wall of the rail opening 16. The right end of the scraper block 63 is a semi-conical block structure. The lower end of the valve block 5 is provided with a guiding inclined surface. The inclined surface angle of the scraper block 63 is the same as the inclined surface angle of the valve block 5. Through this arrangement, the lower inclined surface of the upwardly moving valve block 5 can be completely cleaned by the displaced scraper block 63. When the valve block 5 is displaced downward, the valve block 5 can completely squeeze the scraper block 63 into the inner side of the rail opening 16.
[0029] Working process: The operation of closing and opening the environmentally friendly chemical gas pressure isolation valve is as follows. It should be noted that the valve block 5 that moves downward can clean the inner wall of the channel 12. The impurity particles cleaned will adhere to the lower slope of the valve block 5 in large quantities, which will hinder the downward displacement of the valve block 5, resulting in the next downward displacement of the valve block 5 not being smooth enough; the exhaust gas enters the transfer part 1 through the air intake pipe 2, and the valve block 5 in the lowered state will block the flow of the exhaust gas, so that the exhaust gas cannot enter the air outlet 14. At this time, the impurity particles in the exhaust gas will also adhere to the valve block 5. When the exhaust gas needs to flow, the upper and lower positions of the valve block 5 can be adjusted through the adjusting part 4 (rotating the rotating wheel 44 drives the screw rod 41 to rotate, the rotation of the screw rod 41 will drive the screw block 42 and the connecting block 43 to move upward, and the upward movement of the connecting block 43 will drive the valve block 5 to move upward), so that the valve block 5 moves upward, and the waste gas without the blockage of the valve block 5 can flow into the air outlet 14 and be discharged through the air outlet pipe 3. On the other hand, the upward movement of the valve block 5 will drive its lower inclined surface to align with the rail opening 16, and the scraper block 63 without the valve block 5 is fixed by the spring The elastic force of 64 will displace and pop out in the direction of channel 12, and the pop-up of scraper block 63 will clean the lower inclined surface of valve block 5 to prevent the accumulation of impurity particles on the lower inclined surface of valve block 5, so that valve block 5 can remain unobstructed when it moves downward. At the same time, the pop-up of scraper block 63 can also block the exhaust gas on the lower side of valve block 5 to prevent impurity particles from adhering to the surface of valve block 5, complete the opening of isolation valve, and allow the exhaust gas to circulate. The circulation of exhaust gas will cause impurity particles to adhere to the inner wall of channel 12. When the circulation of exhaust gas needs to be blocked, it is also The regulating part 4 adjusts the position of the valve block 5. Since the lower inclined surface of the valve block 5 has been cleaned in advance, the valve block 5 can move downward smoothly. The downward displacement of the valve block 5 will completely squeeze the scraper block 63 into the rail opening 16 and clean the inner wall of the channel 12 to prevent the foreign particles on the inner wall of the channel 12 from affecting the sealing of the valve block 5 and the channel 12 to the air outlet 14, so that the environmentally friendly chemical air pressure isolation valve can clean the foreign particles attached to the valve parts and the inner wall of the valve shell when opening and closing, so as to ensure the sealing performance of the isolation valve when closing and the smooth performance when opening and closing.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An environmentally friendly chemical gas pressure isolation valve, comprising a transfer part (1), an air inlet pipe (2) and an air outlet pipe (3), characterized in that: The transfer part (1) is arranged between the air inlet pipe (2) and the air outlet pipe (3), and the transfer part (1) comprises a shell (11). A vertically arranged channel (12) is provided on the inner side of the shell (11). An air inlet (13) is provided on the lower left side of the channel (12), and an air outlet (14) is provided on the middle right side of the channel (12). The air inlet pipe (2) is connected to the air inlet (13), and the air outlet pipe (3) is connected to the air outlet (14). An expansion groove (15) is provided on the right side of the channel (12), and a rail opening (16) is provided on the left side of the channel (12). An adjusting part (4) is installed on the inner side of the expansion groove (15), and the adjusting part (4) comprises a screw rod (41). The upper hole of the expansion groove (15) is rotated inwardly. A screw rod (41) is connected, the upper end of the screw rod (41) is fixedly connected to a rotating wheel (44), the outer side of the screw rod (41) is spirally connected to a screw block (42), the outer side of the screw block (42) is fixedly connected to a connecting block (43), the lower side of the left end of the connecting block (43) is fixedly connected to a valve block (5) slidably connected to the channel (12), and a cleaning isolation part (6) is installed on the left side of the shell (11), the cleaning isolation part (6) comprises a fixing frame (61) fixedly connected to the left side of the shell (11), a limiting rod (62) is slidably connected to the inner side of the plate body hole of the fixing frame (61), the right end of the limiting rod (62) is fixedly connected to a scraper block (63) slidably connected to the rail mouth (16), and the outer side of the limiting rod (62) is sleeved with a spring (64).
2. The environmentally friendly chemical gas pressure isolation valve according to claim 1 is characterized by: The channel (12) is a circular slide structure, the valve block (5) is a circular column block structure, the inner diameter of the channel (12) is the same as the diameter of the valve block (5), and the inner wall of the channel (12) is tightly fitted with the outer curved surface of the valve block (5).
3. The environmentally friendly chemical gas pressure isolation valve according to claim 1 is characterized in that: An air vent is provided on the upper side of the channel (12), the air vent of the channel (12) is arranged on the upper side of the valve block (5), the air inlet (13) is arranged on the lower left side of the valve block (5), and the air outlet (14) is arranged on the right side of the valve block (5).
4. The environmentally friendly chemical gas pressure isolation valve according to claim 1 is characterized in that: The threaded portion of the screw rod (41) is arranged on the inner side of the expansion groove (15), the width dimension of the connecting block (43) is the same as the groove width dimension of the expansion groove (15), and the front and rear end surfaces of the connecting block (43) are both in contact with the inner wall of the expansion groove (15).
5. The environmentally friendly chemical gas pressure isolation valve according to claim 1 is characterized by: The limiting rod (62) is composed of a round block and a square rod. The hole position of the plate body of the fixing frame (61) is a square hole structure. The spring (64) is arranged between the plate body of the fixing frame (61) and the outer end surface of the scraper block (63). The outer end surface of the scraper block (63) is tightly fitted with the inner wall of the rail opening (16). The right end of the scraper block (63) is a semi-conical block structure. The lower end of the valve block (5) is arranged as a guide inclined surface. The inclined surface angle of the scraper block (63) is the same as the inclined surface angle of the valve block (5).