High-temperature-resistant three-way valve

Abstract

The utility model belongs to the technical field of three-way valves, and particularly relates to a high-temperature-resistant three-way valve which comprises a cold water shell, an air conveying channel is fixedly connected in the cold water shell, a water outlet is formed in the upper end of the cold water shell, a water inlet is formed in the surface of the cold water shell, and two air outlets are symmetrically formed in the two ends of the air conveying channel. An air inlet is formed in the upper end of the air conveying channel, two rotating limiting protrusions are symmetrically distributed on the surface, close to the two air outlets, of the air conveying channel, a rotating shaft is rotationally connected into each rotating limiting protrusion, a valve plate is fixedly connected to the lower end of each rotating shaft, and a limiting shaft is rotationally connected to the lower end of each valve plate. A groove is formed in the position, corresponding to the axis of the rotating shaft, in the air conveying channel, and the water cooling shell is additionally arranged, so that the air conveying channel can be kept at the normal use temperature, the device can be stably used at the high temperature, frequent replacement is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of three-way valves, and in particular relates to a high-temperature resistant three-way valve. Background Art

[0002] At present, in most gas transportation processes, connection devices are provided at the joints. Among them, three-way valves are widely used due to their ability to divert and parallel flow. However, during the gas transportation process, some gases have extremely high temperatures, causing the pipeline to expand due to heat. At the same time, due to the excessively high temperature, the sealing effect inside the three-way valve is weakened, or the valve structure of the three-way valve is stuck and necrotic with other structures inside the three-way valve due to thermal expansion, making the three-way valve unable to work normally, resulting in reduced work efficiency and a large amount of economic losses. Therefore, there is a need for a high-temperature resistant three-way valve that can withstand high temperatures and can operate normally under high temperatures.

[0003] A Chinese patent with authorization announcement number CN210770419U discloses a high-temperature resistant remote-controlled three-way valve device, which belongs to the field of three-way valve technology. The three-way valve device includes a three-way valve body, a starter, a rotating shaft and a solenoid valve. By setting the sealing ring at the gap between the valve plate and the smoke inlet pipe to an L-shape, and adding glass fiber to the sealing ring, a solenoid valve is set on the starter, and remote control is achieved through the solenoid valve, the overall connection and installation of the three-way valve are all bolted connections.

[0004] However, the above has the following shortcomings:

[0005] 1. According to the description in the above patent, the high temperature resistance of the entire device is achieved by improving the material and shape. Although the material properties can improve the heat resistance of the device, and the shape can improve the sealing effect to a certain extent, continuous operation in a high temperature environment causes great damage to the device. Relying solely on the material itself and changing the shape cannot meet the long-term use requirements of the three-way valve. Frequent maintenance is required, which greatly reduces work efficiency. Frequent replacement and use of heat-resistant materials increase economic costs and increase economic losses.

[0006] 2. The above patent only considers normal operation, and does not consider the situation in a high-temperature environment where excessive pressure inside the gas pipe causes a gap to appear at the valve stem connection, causing the high-temperature gas in the gas pipe to spray out, resulting in an accidental injury to nearby operators. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model solves the technical problem of adding a cold water shell to the outside of the three-way valve air passage, so that the heat of the three-way valve air passage is quickly transferred and absorbed by the water in the cold water shell, so that the air passage does not expand due to heat, and the water in the cold water shell cools down multiple structures at the same time, thereby ensuring the stability of direct structural cooperation, increasing the durability of the entire device, and eliminating the need for frequent disassembly and maintenance of the device. By arranging a protective device, when gas leaks, the protective device can promptly fill the leakage point at the valve stem connection to ensure the safety of the operator.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature resistant three-way valve, comprising a cold water shell, an air supply channel fixedly connected to the cold water shell, a water outlet provided at the upper end of the cold water shell, a water inlet provided on the surface of the cold water shell, two air outlets symmetrically arranged at both ends of the air supply channel, an air inlet provided at the upper end of the air supply channel, two rotation limiting protrusions symmetrically distributed on the surface of the air supply channel close to the two air outlets, a rotating shaft rotatably connected to each of the rotation limiting protrusions, a valve plate fixedly connected to the lower end of each of the rotating shafts, a limiting shaft rotatably connected to the lower end of each of the valve plates, a groove provided at a position corresponding to the axis of the rotating shaft in the air supply channel, the limiting shaft fixedly connected to the groove of the air supply channel, and a protective device provided in the rotation limiting protrusion.

[0009] Furthermore, the protective device includes a soft film ring, the upper end of the rotation limiting protrusion is fixedly connected to a fixed block, the outer ring of the soft film ring is fixedly connected to the fixed block, the inner ring of the soft film ring is tightly fixed to the surface of the rotating shaft, and there is a tough film between the outer ring and the inner ring of the soft film ring, and the film on the soft film ring will not break due to the rotation of the rotating shaft.

[0010] Furthermore, a recess is provided in each of the rotation limiting protrusions, and a water-swelling sealing ring is fixedly connected in the recess of each of the rotation limiting protrusions, and each of the water-swelling sealing rings can expand when exposed to water.

[0011] Furthermore, each of the rotating shaft surfaces is provided with ratchet teeth, and each of the water-swelling sealing rings can closely fit the ratchet teeth at the corresponding position after expansion.

[0012] Furthermore, each of the rotation limiting protrusions is fixedly connected to a rotating sleeve, the lower end of the inner ring of the rotating sleeve is fixedly connected to a sealing ring, and the rotating shaft is rotatably connected in the sealing ring.

[0013] Furthermore, the surface of the cold water shell is symmetrically distributed and fixedly connected to two motor frames at corresponding positions of the rotating shaft. Each of the motor frames is fixedly connected to a motor. The transmission end of each motor is transmission-connected to the rotating shaft. Each rotating shaft is rotationally connected to the motor frame, and each rotating shaft is rotationally connected to the cold water shell.

[0014] Furthermore, a plurality of heat sinks are linearly distributed and fixedly connected to the surface of the air delivery channel in the cold water shell, and a plurality of guide holes are opened on the surface of each heat sink. The heat sinks can transfer the heat in the air delivery channel to the cold water shell.

[0015] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) A cold water shell is set up to transfer the heat in the air transmission channel to the cold water shell, so that the air transmission channel will not be deformed due to excessive temperature, causing the device to malfunction. The stability of the device is ensured, so that the device can be used for a long time without frequent replacement, thereby improving work efficiency and reducing economic costs.

[0017] (2) A protective device is used. When the temperature of the entire device is too high due to insufficient cooling efficiency, and the pressure in the gas pipe is too high, causing the valve stem connection to deform, resulting in the high-temperature gas in the gas pipe leaking out of the gas pipe, the soft membrane can be broken, so that the water-swelling sealing ring expands when it encounters water and seals the gas in the gas pipe, thereby ensuring the safety of operators near the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0019] Figure 2 This is a side view of the patent.

[0020] Figure 3 This is a half-section stereoscopic view of this patent

[0021] Figure 4 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0022] Figure 5 for Figure 2 A three-dimensional cross-sectional view perpendicular to AA

[0023] Figure 6 It is a three-dimensional cross-sectional view of the butterfly valve rotation and protection device.

[0024] Figure 7 for Figure 4 Enlarged view of point B in the middle.

[0025] Explanation of the reference numerals: cold water shell 10; water outlet 11; water inlet 12; air inlet 13; air outlet 14; valve plate 15; motor 16; motor frame 17; rotating shaft 18; heat sink 19; limiting shaft 20; guide hole 21; soft membrane ring 22; fixing block 23; water-rising sealing ring 24; rotating sleeve 25; rotating limiting protrusion 26; sealing ring 27; air supply channel 28; ratchet 29. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a high-temperature resistant three-way valve includes a cold water shell 10, a water outlet 11 and a water inlet 12 are provided on the surface of the cold water shell 10, an air delivery channel 28 is fixedly connected inside the cold water shell 10, and the two ends of the air delivery channel 28 are symmetrically distributed and fixedly connected with the air outlet 14, and the upper end of the air delivery channel 28 is provided with an air inlet 13, and the surface of the cold water shell 10 is symmetrically distributed and fixedly connected with two motor frames 17, each motor frame 17 is fixedly connected to the surface of the motor 16, and each motor 16 transmission end is connected to the rotating shaft 18, and the rotating shaft 18 is rotatably connected to the motor frame 17. The shaft 18 is rotatably connected to the cold water shell 10, and two rotation limit protrusions 26 are symmetrically distributed on the surface of the air delivery channel 28. Each rotating shaft 18 is rotatably connected to the rotation limit protrusion 26 at the corresponding position. A valve plate 15 is rotatably connected to the air delivery channel 28 between the two air outlets 14. The other end of each rotating shaft 18 is fixedly connected to the valve plate 15, and the other end of each valve plate 15 is rotatably connected to a limit shaft 20. A recess is provided in the air delivery channel 28 at a position corresponding to each limit shaft 20, and each limit shaft 20 is fixedly connected to the recess in the air delivery channel 28.

[0028] By providing the cold water shell 10 , the temperature in the air delivery channel 28 can be transferred to the water in the cold water shell 10 , so that the air delivery channel 28 can maintain a normal temperature, and the device can operate normally.

[0029] like Figure 3 、 Figure 4 and Figure 5 As shown, a plurality of heat sinks 19 are linearly distributed and fixedly connected to the surface of the air delivery channel 28 in the cold water shell 10 , and a plurality of guide holes 21 are opened on the surface of the heat sink 19 .

[0030] The addition of the heat sink 19 increases the structural strength of the direct connection between the cold water shell 10 and the gas duct 28 and improves the heat dissipation of the gas duct 28, so that the gas duct 28 can maintain the normal operating temperature more stably.

[0031] like Figure 4 、 Figure 6 and Figure 7As shown, a rotating sleeve 25 is fixedly connected to each rotation limiting protrusion 26, and a sealing ring 27 is fixedly connected to the lower end of the inner ring extension part of each rotating sleeve 25. Each rotating shaft 18 is rotatably connected to the rotating sleeve 25 at the corresponding position. A groove is provided in each rotation limiting protrusion 26 above the rotating sleeve 25, and a water-swelling sealing ring 24 is fixedly connected to the groove of each rotation limiting protrusion 26. Each water-swelling sealing ring 24 can expand when exposed to water, and a ratchet 29 is provided at the water-swelling sealing ring 24 of each rotating shaft 18. The water-swelling sealing ring 24 can fit tightly with the ratchet 29 after expanding when exposed to water. The upper end of each rotation limiting protrusion 26 is fixedly connected to a fixed block 23, and the outer ring of each fixed block 23 is fixedly connected to the outer ring of the soft membrane ring 22. The inner ring of each soft membrane ring 22 is fixedly connected to the surface of the rotating shaft 18 at the corresponding position. A tough film is provided between the outer ring and the inner ring of the soft membrane ring 22, and the film of the soft membrane ring 22 will not break due to the rotation of the rotating shaft 18.

[0032] By providing a protective device, when the gas in the gas delivery channel 28 leaks from the rotation limit protrusion 26, the device can allow the water in the cold water shell 10 to enter the rotation limit protrusion 26 by rupturing the soft membrane ring 22, so that the water-swelling sealing ring 24 expands and bites the ratchet 29, blocking the leakage point, preventing the continued leakage of high-temperature gas, and protecting the safety of the operator.

[0033] In this embodiment, initially, the operator connects the device to the connection point, connects the water inlet 12 to the water supply device, and connects the water outlet 11 to the water circulation device. Each soft membrane ring 22 is in good condition, each water-swelling sealing ring 24 is in a fully contracted state, and the surface of each valve plate 15 is parallel to the air outlet 14.

[0034] Before use, the operator injects sufficient water from the water inlet 12 to allow the water to pass through the guide holes 21 on the surface of each heat sink 19 until the water in the cold water shell 10 flows out from the water outlet 11 and forms a cooling water circuit with the water entering the water inlet 12. Then, the operator turns on the motor 16 to drive the rotating shaft 18 to rotate, so that the surface of the valve plate 15 rotates to be perpendicular to the air outlet 14, so that the device can complete the normal operation of the three-way valve.

[0035] Since a large amount of high-temperature gas passes through the gas transmission channel 28, the overall temperature of the gas transmission channel 28 rises. However, because the water flowing through the outer surface of the gas transmission channel 28 carries away the heat from the surface of the gas transmission channel 28, the overall temperature of the gas transmission channel 28 tends to be stable, and the gas transmission channel 28 will not be deformed or even ruptured due to excessive temperature changes.

[0036] Since relying solely on water flow to carry away the surface temperature of the air delivery channel 28 cannot effectively reduce the temperature of the air delivery channel 28, the heat dissipation plate 19 is provided to quickly transfer the heat of the air delivery channel 28 to the surface of the heat dissipation plate 19, and the water flow in the cold water shell 10 carries away the heat on the heat dissipation plate 19, thereby increasing the contact area between the air delivery channel 28 and the water flow in disguise, thereby improving the heat dissipation efficiency, allowing the device to maintain a good operating temperature, allowing the device to operate stably, without the need for frequent replacement, improving work efficiency, and avoiding a large amount of economic losses. In addition, due to the presence of the heat dissipation plate 19, the connection between the cold water shell 10 and the air delivery channel 28 is more stable, ensuring the structural strength of the device, and making the device have better stability.

[0037] When the device's cooling efficiency is insufficient, causing the temperature to rise, and the high-temperature gas pressure in the device is too high, causing leakage at the valve stem connection of the device, the rotation limiting protrusion 26 on the surface of the gas transmission channel 28 is connected to the fixed block 23, and the soft membrane ring 22 connected inside the fixed block 23, so that the rotation limiting protrusion 26 forms good airtightness. Due to the continuous leakage of gas in the rotation limiting protrusion 26, the lower end of the soft membrane ring 22 gradually bulges under the action of the gas in the rotation limiting protrusion 26.

[0038] When the gas reaches a certain pressure, the soft membrane ring 22 is broken by the gas pressure, and the water in the cold water shell 10 flows into the rotation limit protrusion 26 through the inner and outer rings of the soft membrane ring 22. When passing through the water-swelling seal ring 24, due to the characteristic of the water-swelling seal ring 24 expanding when encountering water, the water-swelling seal ring 24 stretches and bites the ratchet 29, so that the water-swelling seal ring 24 and the ratchet 29 fit tightly, so that the leakage point is blocked, so that the high-temperature gas will not leak out of the gas transmission channel 28, and the life safety of the operator is guaranteed.

[0039] The motor 16 , the soft membrane ring 22 , the water-swelling sealing ring 24 , and the sealing ring 27 are all existing mature technologies and will not be described in detail herein.

[0040] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0041] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0042] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A high temperature resistant three-way valve, comprising a cold water shell (10), characterized in that: An air delivery channel (28) is fixedly connected to the cold water shell (10), a water outlet (11) is provided at the upper end of the cold water shell (10), a water inlet (12) is provided on the surface of the cold water shell (10), two air outlets (14) are symmetrically provided at both ends of the air delivery channel (28), an air inlet (13) is provided at the upper end of the air delivery channel (28), and two rotation limiting protrusions (23) are symmetrically distributed on the surface of the air delivery channel (28) near the two air outlets (14). 6), a rotating shaft (18) is rotatably connected in each of the rotation limiting protrusions (26), a valve plate (15) is fixedly connected to the lower end of each of the rotation shafts (18), a limiting shaft (20) is rotatably connected to the lower end of each of the valve plates (15), a groove is provided in the gas transmission channel (28) at a position corresponding to the axis of the rotating shaft (18), the limiting shaft (20) is fixedly connected in the groove of the gas transmission channel (28), and a protective device is provided in the rotation limiting protrusion (26).

2. A high temperature resistant three-way valve according to claim 1, characterized in that: The protective device comprises a soft film ring (22), the upper end of the rotation limiting protrusion (26) is fixedly connected to a fixed block (23), the outer ring of the soft film ring (22) is fixedly connected inside the fixed block (23), the inner ring of the soft film ring (22) is tightly fixedly connected to the surface of the rotating shaft (18), and there is a tough film between the outer ring and the inner ring of the soft film ring (22), and the film on the soft film ring (22) will not be broken due to the rotation of the rotating shaft (18).

3. A high temperature resistant three-way valve according to claim 2, characterized in that Each of the rotation limiting protrusions (26) is provided with a recess, and a water-swelling sealing ring (24) is fixedly connected to the recess of each of the rotation limiting protrusions (26), and each of the water-swelling sealing rings (24) can expand when exposed to water.

4. A high temperature resistant three-way valve according to claim 3, characterized in that: A ratchet (29) is provided on the surface of each rotating shaft (18), and each water-swelling sealing ring (24) can closely fit the ratchet (29) at the corresponding position after expansion.

5. The high temperature resistant three-way valve according to claim 2, characterized in that: A rotating sleeve (25) is fixedly connected inside each of the rotation limiting protrusions (26), a sealing ring (27) is fixedly connected to the lower end of the inner ring of the rotating sleeve (25), and the rotating shaft (18) is rotatably connected inside the sealing ring (27).

6. The high temperature resistant three-way valve according to claim 1, characterized in that: Two motor frames (17) are symmetrically distributed and fixedly connected to the surface of the cold water shell (10) at positions corresponding to the rotating shaft (18); a motor (16) is fixedly connected to the surface of each motor frame (17); a transmission end of each motor (16) is transmission-connected to the rotating shaft (18); each rotating shaft (18) is rotationally connected to the motor frame (17); and each rotating shaft (18) is rotationally connected to the cold water shell (10).

7. The high temperature resistant three-way valve according to claim 1, characterized in that: A plurality of heat dissipation plates (19) are linearly distributed and fixedly connected to the surface of the air delivery channel (28) in the cold water shell (10), and a plurality of guide holes (21) are opened on the surface of each heat dissipation plate (19). The heat dissipation plates (19) can transfer the heat in the air delivery channel (28) to the cold water shell (10).

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