Cooling assembly of high-temperature powder stop valve

Abstract

The utility model discloses a cooling assembly of a high-temperature powder stop valve, which belongs to the technical field of powder production and processing, and comprises a cooling medium detection assembly, two ends of the cooling medium detection assembly are respectively communicated with a left cooling end cover and a right cooling end cover; the left cooling end cover and the right cooling end cover are each internally provided with a flow channel, and the flow channels in the left cooling end cover and the right cooling end cover communicate with the cooling medium detection assembly. The flow channels are a plurality of strip-shaped cavities, the strip-shaped cavities are evenly distributed in the left cooling end cover and the right cooling end cover in parallel, communicated through holes are formed in the side walls of the cavities, the flow channels in the cooling end covers are arranged in a labyrinth mode, and it can be guaranteed that cooling media evenly circulate on the end faces; the cooling device is used for cooling bearings and sealing parts in the middles of the left cooling end cover and the right cooling end cover, the bearings are semi-coated with the flow channels, the good cooling effect is achieved, and the bearings and the sealing parts are effectively protected.

Description

Technical Field

[0001] The utility model relates to the field of powder production and processing, in particular to a cooling component of a high-temperature powder cut-off valve. Background Art

[0002] In the chemical industry, especially in the lithium carbonate production industry, material grinding is a key production step in the lithium extraction process. This process involves the transportation of large quantities of dry materials. The main characteristics of this material are: high temperatures, which can reach 800 degrees Celsius or above; the materials conveyed are usually powders, small particles, or a mixture of the two; and the material conveying process is often accompanied by high-frequency or large-scale vibration. In the powder material conveying process, the use of dedicated high-temperature powder shut-off valves is essential to meet production requirements.

[0003] Currently, high-temperature powder shut-off valves on the market typically all utilize high-temperature-resistant materials or passive heat dissipation designs. However, bearings and sealing materials, especially soft sealing materials suitable for valve stem seals, rarely withstand temperatures exceeding 800°C. The few suitable high-temperature-resistant materials are not only difficult to obtain but also extremely expensive. They are also difficult to process into standard parts and maintain as long-term spare parts. Passive heat dissipation designs, such as extending the valve yoke or adding heat sinks to the shut-off valve body, essentially increase the heat dissipation area and utilize ambient temperature to reduce the temperature on the valve stem side. However, the heat dissipation effect of this type of heat dissipation method is generally poor and is significantly affected by the environment and operating conditions. When the ambient temperature or material temperature is too high, it cannot effectively reduce the operating temperature of the valve stem and sealing material. Therefore, the valve stem seal is prone to leakage, and the valve stem often deforms and becomes stuck due to excessive temperatures. How to develop a cooling assembly for high-temperature powder shut-off valves to improve these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cooling component for a high-temperature powder cut-off valve, which aims to improve the poor heat dissipation effect of sealing materials such as bearings and valves, resulting in leakage at the valve stem seal. At the same time, the valve stem often deforms and gets stuck due to excessively high temperature.

[0005] The utility model is realized as follows: a cooling component of a high-temperature powder cut-off valve comprises

[0006] A cooling medium detection component, wherein both ends of the cooling medium detection component are connected to a left cooling end cover and a right cooling end cover respectively;

[0007] The left cooling end cover and the right cooling end cover are respectively provided with flow channels inside, and the flow channels inside the left cooling end cover and the right cooling end cover are respectively communicated with the cooling medium detection assembly.

[0008] In a preferred technical solution of the present invention, cylindrical through holes are opened in the middle of the left cooling end cover and the right cooling end cover, bearings are fixedly installed in the cylindrical through holes, and seals are provided in the bearings.

[0009] In a preferred technical solution of the present invention, the outside of the left cooling end cover and the right cooling end cover are respectively provided with an end cover cooling medium outlet and an end cover cooling medium inlet, and the end cover cooling medium outlet and the end cover cooling medium inlet are connected to the cooling medium detection component.

[0010] In a preferred technical solution of the present invention, the outer rings of the left cooling end cover and the right cooling end cover are provided with mounting holes, and the mounting holes are equally distributed in an annular pattern on the outer rings of the left cooling end cover and the right cooling end cover.

[0011] In a preferred technical solution of the present invention, the flow channel is a plurality of strip-shaped cavities, which are evenly and parallelly distributed inside the left cooling end cover and the right cooling end cover, and the side walls of the plurality of cavities are provided with communicating through holes.

[0012] In a preferred technical solution of the present invention, the outer rings of the left cooling end cover and the right cooling end cover located at the bearing are engraved with shut-off valve turning marks.

[0013] In a preferred technical solution of the present invention, the cooling medium detection assembly includes a cooling medium inlet valve and a cooling medium outlet valve, the two sides of the cooling medium inlet valve are respectively connected to the end cover cooling medium inlets of the left cooling end cover and the right cooling end cover, the cooling medium outlet valve is connected to the left cooling end cover and the end cover cooling medium outlet of the cooling medium detection assembly, a cooling medium inlet is provided below the cooling medium inlet valve, and a cooling medium outlet is provided below the cooling medium outlet valve.

[0014] In a preferred technical solution of the present invention, an exhaust unit is installed at the connection point of the cooling medium outlet pipes of the left cooling end cover and the right cooling end cover, the air inlet port of the exhaust unit is connected to the upper end of the four-way joint at the pipe connection point, the air outlet end of the exhaust unit is a free end, and the cooling medium outlet valve is connected to the cooling medium outlet pipe.

[0015] In a preferred technical solution of the present invention, an over-temperature detection unit is connected between the exhaust unit and the cooling medium outlet valve, and a flow interruption detection unit is provided between the over-temperature detection unit and the cooling medium outlet valve.

[0016] In a preferred technical solution of the present invention, a cooling medium automatic shut-off unit is provided between the flow interruption detection unit and the cooling medium outlet valve.

[0017] The beneficial effects of the present invention are as follows: The cooling assembly of the high-temperature powder shut-off valve, obtained through the above-described design, comprises a left cooling end cap and a right cooling end cap, each of which has a flow channel therein, and a cooling medium detection assembly connected to both end caps, forming a complete cooling channel. The cooling medium circulates within the channel, effectively removing heat and ensuring that the temperature of the valve stem seal and support bearing of the high-temperature powder shut-off valve remains within a reasonable range during operation, thereby preventing damage to related components and performance degradation due to high temperatures.

[0018] The flow channel is composed of multiple strip-shaped cavities that are evenly distributed in parallel, and the side walls are provided with connecting through holes. This labyrinth design enables the cooling medium to be more evenly distributed inside the end cover, thereby improving the cooling efficiency.

[0019] Bearings and seals are fixedly mounted within the cylindrical through-holes in the center of the left and right cooling end covers, with the covers semi-enclosing the bearings and seals. This large contact area design maximizes cooling of the bearings and seals, effectively lowering their operating temperature, extending their service life, and reducing the risk of leakage and damage due to overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of one side provided by an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of the structure of the other side provided for an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the structure of the left cooling end cover and the right cooling end cover provided in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the left cooling end cover and the right cooling end cover provided in an embodiment of the present utility model.

[0025] In the figure: 11-left cooling end cover; 12-right cooling end cover; 102-end cover cooling medium outlet; 103-end cover cooling medium inlet; 104-shutoff valve steering mark; 105-bearing; 106-flow channel; 20-cooling medium detection component; 201-cooling medium inlet; 202-cooling medium inlet valve; 203-exhaust unit; 204-overtemperature detection unit; 205-interruption detection unit; 206-cooling medium automatic shut-off unit; 207-cooling medium outlet valve; 208-cooling medium outlet. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 The utility model provides a technical solution: a cooling component of a high-temperature powder cut-off valve, comprising

[0028] The cooling medium detection component 20 has a left cooling end cover 11 and a right cooling end cover 12 at both ends thereof. The left cooling end cover 11 and the right cooling end cover 12 are respectively provided with flow channels 106 inside, and the flow channels 106 inside the left cooling end cover 11 and the right cooling end cover 12 are respectively connected to the cooling medium detection component 20.

[0029] The left and right cooling covers 11 and 12 have cylindrical through-holes in their centers. Bearings 105 are fixedly mounted within these holes, and seals are installed within these bearings. The exteriors of the left and right cooling covers 11 and 12 are respectively provided with a cooling medium outlet 102 and a cooling medium inlet 103, which communicate with the cooling medium detection assembly 20. Mounting holes are also defined in the outer rings of the left and right cooling covers 11 and 12, distributed evenly in an annular pattern. The flow channel 106 is a plurality of strip-shaped cavities, which are evenly distributed in parallel inside the left cooling end cover 11 and the right cooling end cover 12. The side walls of the plurality of cavities are provided with connecting through holes. The flow channel 106 inside the cooling end cover 12 is arranged in a labyrinthine manner, which can ensure that the cooling medium flows evenly on the end face, and is used to dissipate heat for the bearings 105 and seals in the middle of the left cooling end cover 11 and the right cooling end cover 12. The flow channel 106 is semi-enclosed on the outside of the bearing 105 to achieve a good cooling effect and effectively protect the bearing 105 and the sealing components.

[0030] The left and right cooling covers 11 and 12 are manufactured from a high-performance, specialized aluminum alloy. They offer excellent heat transfer, lightweight, corrosion and temperature resistance, structural strength, and ease of fabrication. They are also cost-effective and easily sized to meet the structural requirements of various valves. The outer rings of the left and right cooling covers 11 and 12, located near the bearing 105, are engraved with shutoff valve direction indicators 104.

[0031] The cooling medium detection assembly 20 includes a cooling medium inlet valve 202 and a cooling medium outlet valve 207. The two sides of the cooling medium inlet valve 202 are respectively connected to the end cover cooling medium inlets 103 of the left cooling end cover 11 and the right cooling end cover 12. The cooling medium outlet valve 207 is connected to the left cooling end cover 11 and the end cover cooling medium outlet 102 of the cooling medium detection assembly 20. A cooling medium inlet 201 is provided below the cooling medium inlet valve 202, and a cooling medium outlet 208 is provided below the cooling medium outlet valve 207.

[0032] An exhaust unit 203 is installed at the cooling medium outlet 102 of the left and right cooling end covers 11 and 12. A cooling medium outlet valve 207 is connected to the exhaust unit 203 and functions as a valve for exhausting non-condensable gases, generating an actuation signal when the set temperature is exceeded, generating a signal when the cooling medium flow is abnormally interrupted, and providing an automatic valve for remote operation and a manual shutoff valve for easy maintenance. An overtemperature detection unit 204 is connected between the exhaust unit 203 and the cooling medium outlet valve 207. A flow interruption detection unit 205 is installed between the overtemperature detection unit 204 and the cooling medium outlet valve 207. The overtemperature detection unit 204 detects whether the cooling medium temperature exceeds a safe value, and the flow interruption detection unit 205 detects whether the cooling medium flow is abnormal. An automatic cooling medium shutoff unit 206 is installed between the flow interruption detection unit 205 and the cooling medium outlet valve 207.

[0033] Working Principle: After entering the cooling medium inlet valve 202 from the cooling medium inlet 201, the cooling medium flows to the cooling medium inlets 103 of the left and right cooling end covers 11 and 12, respectively. After entering the end covers, the cooling medium flows through the flow channel 106. The special structure of the flow channel 106 ensures that the cooling medium is evenly distributed and quickly removes heat. The cooled medium then flows out of the end cover cooling medium outlet 102, passes through the exhaust unit 203 (during this process, the exhaust unit 203 exhausts non-condensable gases), and then passes through the over-temperature detection unit 204 for temperature detection. If the temperature exceeds the safe value, a signal is issued. The cooling medium then passes through the flow interruption detection unit 205 to check the flow status and also issue a signal if the flow is abnormal. The cooling medium then passes through the cooling medium automatic shut-off unit 206 (always open during normal operation and can be closed remotely when specific conditions are met). Finally, the cooling medium passes through the cooling medium outlet valve 207 and flows out of the cooling medium outlet 208, completing a cooling cycle.

[0034] Since the bearing 105 and the seal are located in the central cylindrical through holes of the left cooling end cover 11 and the right cooling end cover 12, and the end covers form a semi-enclosed installation manner for them, when the cooling medium flows in the flow channel 106, it can directly exchange heat with the bearing 105 and the seal, thereby effectively reducing their operating temperature.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cooling assembly for a high-temperature powder shut-off valve, characterized in that: include A cooling medium detection component, wherein both ends of the cooling medium detection component are connected to a left cooling end cover and a right cooling end cover respectively; The left cooling end cover and the right cooling end cover are respectively provided with flow channels inside, and the flow channels inside the left cooling end cover and the right cooling end cover are respectively communicated with the cooling medium detection assembly.

2. A cooling assembly for a high-temperature powder shut-off valve according to claim 1, characterized in that: The middle parts of the left cooling end cover and the right cooling end cover are provided with cylindrical through holes, and bearings are fixedly installed in the cylindrical through holes.

3. A cooling assembly for a high-temperature powder shut-off valve according to claim 2, characterized in that: An end cover cooling medium outlet and an end cover cooling medium inlet are respectively provided on the outside of the left cooling end cover and the right cooling end cover. The end cover cooling medium outlet and the end cover cooling medium inlet are communicated with the cooling medium detection component.

4. The cooling assembly of a high-temperature powder shut-off valve according to claim 2, characterized in that: The outer rings of the left cooling end cover and the right cooling end cover are provided with mounting holes, and the mounting holes are equally distributed in an annular pattern on the outer rings of the left cooling end cover and the right cooling end cover.

5. The cooling assembly of a high-temperature powder shut-off valve according to claim 3, characterized in that: The flow channel is a plurality of strip-shaped cavities, which are evenly and parallelly distributed inside the left cooling end cover and the right cooling end cover, and the side walls of the plurality of cavities are provided with communicating through holes.

6. The cooling assembly of a high-temperature powder shut-off valve according to claim 2, characterized in that: The outer rings of the left cooling end cover and the right cooling end cover are engraved with shut-off valve steering marks.

7. The cooling assembly of a high-temperature powder shut-off valve according to claim 5, characterized in that: The cooling medium detection assembly includes a cooling medium inlet valve and a cooling medium outlet valve. The cooling medium inlet valve is connected to the end cover cooling medium inlets of the left cooling end cover and the right cooling end cover. The cooling medium outlet valve is connected to the left cooling end cover and the end cover cooling medium outlet of the cooling medium detection assembly.

8. The cooling assembly of a high-temperature powder shut-off valve according to claim 7, characterized in that: An exhaust unit is installed at the cooling medium outlets of the left cooling end cover and the right cooling end cover, and the cooling medium outlet valve is connected to the exhaust unit.

9. The cooling assembly of a high-temperature powder shut-off valve according to claim 8, characterized in that: An over-temperature detection unit is connected between the exhaust unit and the cooling medium outlet valve, and a flow interruption detection unit is provided between the over-temperature detection unit and the cooling medium outlet valve.

10. The cooling assembly of a high-temperature powder shut-off valve according to claim 9, characterized in that: A cooling medium automatic shutoff unit is provided between the flow interruption detection unit and the cooling medium outlet valve.

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