High temperature air valve

Abstract

The application discloses a high-temperature air valve and relates to the field of high-temperature ventilation pipeline valves. The structure comprises a support, an actuator fixing plate arranged on the left end face of the support, a pneumatic actuator arranged on the left end of the actuator fixing plate, and an adiabatic transmission mechanism of the high-temperature air valve. The first heat insulation pad and the second heat insulation pad are arranged to reduce the heat conduction temperature of the valve body when passing through the high-temperature gas, the actuator rotating shaft and the second rotating shaft, delay the overheating of the pneumatic actuator caused by the rapid temperature rise during the work of the device, and prolong the service life of the pneumatic actuator. A quick mounting and dismounting mechanism is arranged. The cam, the third rotating shaft and the protruding block are driven to rotate by rotating the sliding groove, so that the protruding block can be automatically clamped with the clamping groove after rotating, and the manual mounting and dismounting of the device by bolts is replaced, so that the mounting and dismounting efficiency of the device is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of high-temperature ventilation duct valves, specifically a high-temperature air valve. Background Technology

[0002] With the rapid development of modern science and technology and modern industry, the application of high-temperature ventilation valves is becoming more and more widespread. The number of pipeline systems carrying high-temperature fluids is increasing. The requirements of pipeline systems and the emergence of new materials and processes have expanded the application field of high-temperature ventilation valves. Because the various physical and mechanical properties of materials will change under high-temperature conditions, high-temperature valves have significant differences in structural design and material selection compared with low-temperature or normal-temperature valves.

[0003] Industrial waste gas treatment and waste heat utilization are becoming increasingly widespread and valued, especially in the automotive industry. These treatment systems handle large volumes of high-temperature gases at 800℃-1100℃, making high-temperature ventilation valves essential components for the treatment and reuse of these gases. In automotive RTO (Regenerative Thermal Oxidizer) waste gas treatment systems, an electric ventilation valve capable of continuously withstanding temperatures of 800-900℃ and intermittently reaching a maximum temperature of 1200℃ is required.

[0004] During use, high-temperature ventilation valves may transfer heat to the actuator through the shaft in the device after high-temperature gas passes through. If this is not addressed for a long time, the actuator's lifespan may be shortened due to prolonged and rapid overheating. Furthermore, external cooling systems for valves are not suitable due to space constraints.

[0005] Secondly, when it is necessary to replace the actuator or shaft on the high-temperature air valve, the high-temperature air valve is usually installed and disassembled using flanges and bolts. This installation and disassembly method is inefficient, which may be detrimental to the replacement of the high-temperature air valve, and is time-consuming and labor-intensive. Summary of the Invention

[0006] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a high-temperature air valve.

[0007] The present invention is implemented as follows: a high-temperature air valve is constructed, the device including a bracket, an actuator fixing plate mounted on the left end face of the bracket, and a pneumatic actuator mounted on the left end of the actuator fixing plate.

[0008] Its characteristic is that it further includes:

[0009] A high-temperature air valve thermal insulation transmission mechanism is installed inside the middle of the bracket.

[0010] A quick-installation and disassembly mechanism is installed at the middle of the front and rear sides of the bracket.

[0011] Preferably, the high-temperature air valve's thermal insulation transmission mechanism includes:

[0012] The actuator shaft has its left end fixedly connected to the output end of the pneumatic actuator, and the actuator shaft passes through the bracket and the actuator fixing plate and is rotatably disposed inside the middle of the bracket.

[0013] The first heat insulation pad is fixedly connected to the right end of the actuator shaft at its left end.

[0014] The first rotating shaft, the left end of the first rotating shaft is fixedly connected to the right end of the first heat insulation pad;

[0015] The valve body is fixedly mounted in the middle of the bracket;

[0016] A valve plate connecting accessory is rotatably disposed in the middle of the valve body, and the left end of the valve plate connecting accessory is fixedly connected to the right end of the first rotating shaft.

[0017] Preferably, the high-temperature air valve insulation transmission mechanism further includes:

[0018] A valve plate, which is fixedly mounted on the valve plate connecting fitting and rotatably mounted in the valve body, wherein the diameter of the valve plate is smaller than the inner diameter of the valve body;

[0019] Air duct, which is fixedly installed on both the front and rear sides of the valve body;

[0020] The second heat insulation pad is fixedly connected to the right end of the first rotating shaft at its left end.

[0021] The second rotating shaft, the left end of which is fixedly connected to the right end of the second heat insulation pad;

[0022] The bracket includes a square-seat bearing, which is fixedly mounted on the left and right sides of the bracket and rotatably connected to the actuator shaft and the second shaft.

[0023] A shaft plug is fixedly installed at the center of the left end face of the right-side bearing with a square seat.

[0024] Preferably, the quick-installation / disassembly mechanism includes:

[0025] A first flange, the rear end face of which is fixedly connected to the front end face of the valve body;

[0026] A flange gasket, wherein the flange gasket is disposed on the front end face of the first flange;

[0027] The second flange is located in front of the flange gasket.

[0028] Preferably, the quick-installation and disassembly mechanism further includes:

[0029] A rotating plate, which is slidably disposed within the first flange;

[0030] A handle, which is fixedly mounted on the top of the rotating plate;

[0031] A ball bearing is disposed inside the first flange, with the inner circle of the ball bearing fitting against the inner circle of the first flange and the outer circle of the ball bearing fitting against the inner circle of the rotating plate.

[0032] Preferably, the quick-installation and disassembly mechanism further includes:

[0033] A rotating slide groove is formed on the rear end face of the rotating plate;

[0034] The cam, wherein the rear end of the cam is slidably connected to the rotating groove;

[0035] The first sliding groove is formed at the bottom of the rotating plate;

[0036] A first slider is slidably disposed within the first sliding groove;

[0037] A fixed box, the bottom of which is fixedly connected to the upper end of the first slider, and the front end face of the fixed box is fixedly connected to the inner wall of the front end face of the first flange.

[0038] Preferably, the quick-installation and disassembly mechanism further includes:

[0039] The second slider, the lower end of which is fixedly connected to the top of the fixed box;

[0040] The second sliding groove is formed at the top of the rotating plate;

[0041] The third rotating shaft is fixedly connected to the lower part of the front end face of the cam;

[0042] A protrusion is fixedly disposed at the top edge of the front end of the third rotating shaft.

[0043] The card slots are arranged in five sets, equidistantly inside the second flange.

[0044] The positioning holes are arranged in five sets, equidistantly on the flange gasket, and the positioning holes extend through the front and rear sides of the flange gasket.

[0045] Preferably, the first and second heat insulation pads are made of ceramic fiber insulation material, and a heat insulation sealing ring is provided inside the valve body.

[0046] Preferably, the actuator shaft is connected to the first shaft and the first shaft and the second shaft by a coupling.

[0047] Preferably, the rotating groove is an irregular polygon.

[0048] The present invention has the following advantages: The present invention provides a high-temperature air valve through improvements, which, compared with similar equipment, have the following improvements:

[0049] The high-temperature air valve of this invention features an improved high-temperature air valve with an insulated transmission mechanism. By utilizing a first and a second heat insulation pad, the heat conduction temperature of the valve body through the actuator shaft and the second shaft is reduced when high-temperature gas passes through it. This delays the overheating of the pneumatic actuator due to rapid temperature rise during device operation, thereby extending the service life of the pneumatic actuator.

[0050] The high-temperature air valve of the present invention features a quick installation and disassembly mechanism. By rotating the slide groove, the cam, the third rotating shaft, and the protrusion rotate, allowing the protrusion to automatically engage with the slot after rotation. This replaces the manual installation and disassembly of the device using bolts, greatly improving the efficiency of installation and disassembly. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the structure of the present invention;

[0052] Figure 2 This is a top view of the structure of the present invention;

[0053] Figure 3 This is a structural breakdown diagram of the present invention;

[0054] Figure 4 This is a front view of the second flange of the present invention;

[0055] Figure 5 This is a schematic diagram of the ball bearing structure of the present invention;

[0056] Figure 6 This is a schematic diagram of the internal structure of the rotating plate of the present invention;

[0057] Figure 7 This is the invention Figure 6 Enlarged view of area A in the image;

[0058] Figure 8 This is a schematic diagram of the rotating plate structure of the present invention;

[0059] Figure 9 This is a schematic diagram of the internal structure of the second flange of the present invention.

[0060] The components include: bracket-1, actuator fixing plate-2, pneumatic actuator-3, high-temperature air valve heat insulation transmission mechanism-4, actuator shaft-5, first heat insulation pad-6, first shaft-7, valve body-8, valve plate connecting accessories-9, quick installation and disassembly mechanism-10, first flange-101, flange gasket-102, second flange-103, rotating plate-104, handle-105, ball bearing-106, rotating slide groove-107, cam-108, first sliding slide groove-109, first slider-110, fixing box-111, second slider-112, second sliding slide groove-113, third shaft-114, protrusion-115, slot-116, positioning hole-117, valve plate-11, air duct-12, second heat insulation pad-13, second shaft-14, bearing with square seat-15, shaft plug-16. Detailed Implementation

[0061] The following is in conjunction with the appendix Figures 1-9 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0062] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0064] Example 1:

[0065] Please see Figures 1-6The present invention provides a high-temperature air valve, comprising a bracket 1, an actuator fixing plate 2 mounted on the left end face of the bracket 1, a pneumatic actuator 3 mounted on the left end of the actuator fixing plate 2, a high-temperature air valve heat insulation transmission mechanism 4 mounted inside the middle of the bracket 1, and a quick installation and disassembly mechanism 10 mounted on the middle of the front and rear sides of the bracket 1.

[0066] The left end of the actuator shaft 5 is fixedly connected to the output end of the pneumatic actuator 3, and the actuator shaft 5 passes through the bracket 1 and the actuator fixing plate 2 and is rotatably set in the middle of the bracket 1. The left end of the first heat insulation pad 6 is fixedly connected to the right end of the actuator shaft 5, the left end of the first shaft 7 is fixedly connected to the right end of the first heat insulation pad 6, the valve body 8 is fixedly set in the middle of the bracket 1, and the valve plate connecting accessory 9 is rotatably set in the middle of the valve body 8, and the left end of the valve plate connecting accessory 9 is fixedly connected to the right end of the first shaft 7.

[0067] The valve plate 11 is fixedly mounted on the valve plate connecting accessory 9, and the valve plate 11 is rotatably mounted inside the valve body 8. The diameter of the valve plate 11 is smaller than the inner diameter of the valve body 8. The air duct 12 is fixedly mounted on the front and rear sides of the valve body 8. The left end of the second heat insulation pad 13 is fixedly connected to the right end of the first rotating shaft 7, and the left end of the second rotating shaft 14 is fixedly connected to the right end of the second heat insulation pad 13.

[0068] The square-seat bearing 15 is fixedly installed on the left and right sides of the bracket 1, and the square-seat bearing 15 is rotatably connected to the actuator shaft 5. The square-seat bearing 15 is rotatably connected to the second shaft 14. The shaft plug 16 is fixedly installed at the center of the left end face of the right square-seat bearing 15.

[0069] The first heat insulation pad 6 and the second heat insulation pad 13 are made of ceramic fiber heat insulation material. The valve body 8 is equipped with a heat insulation sealing ring. The actuator shaft 5 is connected to the first shaft 7 and the first shaft 7 is connected to the second shaft 14 by a coupling.

[0070] The working principle of a high-temperature air valve based on Example 1 is as follows:

[0071] When this device is used, the pneumatic actuator 3 drives the actuator shaft 5, the first shaft 7 and the second shaft 14 to rotate. When the actuator shaft 5, the first shaft 7 and the second shaft 14 rotate, they drive the valve plate connecting accessory 9 and the valve plate 11 to rotate, thereby allowing gas to enter the air duct 12 through the valve body 8 for ventilation.

[0072] When the gas temperature passing through the valve body is high, the temperature will be conducted to the pneumatic actuator 3 through the actuator shaft 5, the first shaft 7 and the second shaft 14. When the pneumatic actuator 3 is at a high temperature for a long time, the pneumatic actuator 3 is prone to damage due to overheating.

[0073] At this time, the first heat insulation pad 6, which is set between the actuator shaft 5 and the first shaft 7, and the second heat insulation pad 13, which is set between the first shaft 7 and the second shaft 14, can prevent the conduction of temperature, reduce the heat conduction of temperature so that the pneumatic actuator 3 is too hot, and thus increase the service life of the pneumatic actuator 3.

[0074] Please see Figures 3-9 The high-temperature air valve of the present invention, compared with Embodiment 1, further includes a quick-installation and disassembly mechanism 10, which includes:

[0075] The rear end face of the first flange 101 is fixedly connected to the front end face of the valve body 8, the flange gasket 102 is located on the front end face of the first flange 101, and the second flange 103 is located in front of the flange gasket 102.

[0076] The rotating plate 104 is slidably disposed inside the first flange 101, the handle 105 is fixedly disposed on the top of the rotating plate 104, the ball bearing 106 is disposed inside the first flange 101, and the inner circle of the ball bearing 106 is in contact with the inner circle of the first flange 101, and the outer circle of the ball bearing 106 is in contact with the inner circle of the rotating plate 104 for the rotation of the rotating plate 104.

[0077] A rotating slide 107 is formed on the rear end face of the rotating plate 104. The rear end of the cam 108 is slidably connected to the rotating slide 107. A first sliding slide 109 is formed on the bottom of the rotating plate 104. A first slider 110 is slidably disposed in the first sliding slide 109. The bottom of the fixed box 111 is fixedly connected to the upper end of the first slider 110, and the front end face of the fixed box 111 is fixedly connected to the inner wall of the front end face of the first flange 101.

[0078] The lower end of the second slider 112 is fixedly connected to the top of the fixed box 111. The second sliding groove 113 is opened on the top of the rotating plate 104. The rear end of the third rotating shaft 114 is fixedly connected to the lower part of the front end face of the cam 108. The protrusion 115 is fixedly set at the top edge of the front end of the third rotating shaft 114. There are five sets of slots 116, which are equidistantly arranged inside the second flange 103. The shape of the slots 116 matches the third rotating shaft 114 and the protrusion 115. The front end of the slots 116 is cylindrical. The lower half of the front end of the slots 116 can cooperate with the protrusion 115 to lock the third rotating shaft 114. There are five sets of positioning holes 117, which are equidistantly arranged on the flange gasket 102. The positioning holes 117 penetrate the front and rear sides of the flange gasket 102. The rotating groove 107 is an irregular polygon.

[0079] The working principle of this embodiment is as follows:

[0080] When installing or disassembling this device, the third rotating shaft 114 on the first flange 101 is passed through the positioning hole 117 on the flange gasket 102 and connected to the second flange 103. At this time, the protrusion 115 on the third rotating shaft 114 enters the slot 116.

[0081] Then, by rotating the rotating plate 104 with the handle 105, during the rotation of the rotating plate 104, the cam 108 set in the rotating slide 107 changes the angle of the rotating slide 107 and rotates by friction. The rotation of the cam 108 drives the third rotating shaft 114 to rotate. After the third rotating shaft 114 rotates, it drives the protrusion 115 to rotate. After the protrusion 115 rotates, the protrusion 115 comes to the lower half of the slot 116. Then the slot 116 restricts the third rotating shaft 114 through the second flange 103, thereby realizing the quick installation of the first flange 101 and the second flange 103.

[0082] Conversely, when it is necessary to quickly disassemble this device, the handle 105 is used to reverse the rotating plate 104. During the reversal of the rotating plate 104, the cam 108 in the rotating slide 107 changes its angle again through the rotating slide 107 and rotates back to the mechanical origin by friction. This causes the protrusion 115 to rotate back to the upper part of the slot 116. At this time, the first flange 101 and the second flange 103 can be quickly disassembled, thereby completing the quick disassembly of this device.

[0083] This invention provides an improved high-temperature air valve by incorporating a high-temperature air valve heat insulation transmission mechanism 4. The first heat insulation pad 6 and the second heat insulation pad 13 reduce the heat conduction temperature of the valve body 8 through the actuator shaft 5 and the second shaft 14 when high-temperature gas passes through it, thus delaying overheating of the pneumatic actuator 3 due to rapid temperature rise during operation and extending its service life. A quick installation and disassembly mechanism 10 is also included. Rotating the slide groove 107 drives the cam 108, the third shaft 114, and the protrusion 115 to rotate, allowing the protrusion 115 to automatically engage with the slot 116 after rotation. This replaces manual installation and disassembly using bolts, significantly improving the efficiency of installation and disassembly.

[0084] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0085] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-temperature air valve, comprising a bracket (1), an actuator fixing plate (2) mounted on the left end face of the bracket (1), and a pneumatic actuator (3) mounted on the left end of the actuator fixing plate (2); Its features are, Also includes: High-temperature air valve heat insulation transmission mechanism (4), the high-temperature air valve heat insulation transmission mechanism (4) is installed in the middle of the bracket (1); A quick-installation and disassembly mechanism (10) is installed at the middle of the front and rear sides of the bracket (1); The quick-installation / disassembly mechanism (10) includes: The first flange (101) is fixedly connected to the rear end face of the first flange (101) and the front end face of the valve body (8); A flange gasket (102) is disposed on the front end face of the first flange (101); The second flange (103) is located in front of the flange gasket (102); A rotating plate (104) is slidably disposed within the first flange (101); A handle (105) is fixedly mounted on the top of the rotating plate (104); A ball bearing (106) is disposed inside the first flange (101), and the inner circle of the ball bearing (106) is in contact with the inner circle of the first flange (101), and the outer circle of the ball bearing (106) is in contact with the inner circle of the rotating plate (104). A rotating slide (107) is provided on the rear end face of the rotating plate (104); Cam (108), the rear end of which is slidably connected to the rotating groove (107); The first sliding groove (109) is formed at the bottom of the rotating plate (104); The first slider (110) is slidably disposed within the first sliding groove (109); The fixed box (111) is fixedly connected at its bottom to the upper end of the first slider (110), and the front end face of the fixed box (111) is fixedly connected to the inner wall of the front end face of the first flange (101).

2. The high-temperature air valve according to claim 1, characterized in that: The high-temperature air valve insulation transmission mechanism (4) includes: The actuator shaft (5) is fixedly connected to the output end of the pneumatic actuator (3) at its left end, and the actuator shaft (5) passes through the bracket (1) and the actuator fixing plate (2) and is rotatably disposed in the middle of the bracket (1); The first heat insulation pad (6) is fixedly connected to the right end of the actuator shaft (5) at its left end. The first rotating shaft (7) is fixedly connected to the right end of the first heat insulation pad (6) at its left end. Valve body (8), the valve body (8) is fixedly installed in the middle of the bracket (1); Valve plate connecting fitting (9) is rotatably disposed in the middle of the valve body (8), and the left end of the valve plate connecting fitting (9) is fixedly connected to the right end of the first rotating shaft (7).

3. The high-temperature air valve according to claim 2, characterized in that: The high-temperature air valve insulation transmission mechanism (4) also includes: Valve plate (11), the valve plate (11) is fixedly mounted on the valve plate connecting fitting (9), and the valve plate (11) is rotatably mounted inside the valve body (8), the diameter of the valve plate (11) is smaller than the inner diameter of the valve body (8); Air duct (12), the air duct (12) is fixedly installed on the front and rear sides of the valve body (8); The second heat insulation pad (13) is fixedly connected to the right end of the first rotating shaft (7) at its left end. The second rotating shaft (14) is fixedly connected to the right end of the second heat insulation pad (13) at its left end. A square-seat bearing (15) is fixedly installed on the left and right sides of the bracket (1), and the square-seat bearing (15) is rotatably connected to the actuator shaft (5), and the square-seat bearing (15) is rotatably connected to the second shaft (14). Shaft plug (16) is fixedly installed at the center of the left end face of the right side bearing with square seat (15).

4. The high-temperature air valve according to claim 1, characterized in that: The quick-installation and disassembly mechanism (10) also includes: The second slider (112) is fixedly connected at its lower end to the top of the fixed box (111); The second sliding groove (113) is formed on the top of the rotating plate (104); The third rotating shaft (114) is fixedly connected to the lower part of the front end face of the cam (108) at its rear end. A protrusion (115) is fixedly disposed at the top edge of the front end of the third rotating shaft (114); The number of the card slots (116) is five, which are equidistantly arranged inside the second flange (103); Positioning holes (117) are provided in five sets, which are equidistantly arranged on the flange gasket (102) and the positioning holes (117) penetrate the front and rear sides of the flange gasket (102).

5. A high-temperature air valve according to claim 3, characterized in that: The first heat insulation pad (6) and the second heat insulation pad (13) are made of ceramic fiber heat insulation material, and the valve body (8) is provided with a heat insulation sealing ring inside.

6. A high-temperature air valve according to claim 3, characterized in that: The actuator shaft (5) is connected to the first shaft (7) and the first shaft (7) is connected to the second shaft (14) by a coupling.

7. A high-temperature air valve according to claim 1, characterized in that: The rotating slide (107) is an irregular polygon in shape.

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