Valve body heating jacket

Abstract

The utility model provides valve body heating jacket belongs to valve heating equipment technical field, including lower valve cover and upper valve cover, the upper valve cover is equipped in the outside of lower valve cover, the top central position department of lower valve cover is equipped with the valve body inner chamber of penetrating, and the outside wall of lower valve cover is symmetrically equipped with two openings one on the position department of top position, the lower valve cover's outside wall is close to the position department of two openings one's below and is equipped with valve body import and export, the lower valve cover is adjacent to the side outer wall central position department of valve body import and export and is provided with wire harness mouth, the utility model discloses through the split type cooperation of lower valve cover and upper valve cover, can fix with heating valve cover on different specifications valve, and the compatibility is high, effectively avoids heat leakage loss, and can realize the even heating and heat preservation of valve, and the valve temperature control is accurate in 230 DEG C, improves the versatility, heat preservation and maintenance convenience of heating valve cover simultaneously, and reduces energy consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve heating equipment, specifically relating to valve body heating sleeves. Background Technology

[0002] In the production of process equipment in industries such as semiconductors and photovoltaics, a variety of high-purity special gases are required. During the transportation of some media (such as high-viscosity fluids and easily crystallizing media), valves need to be maintained at a specific temperature (such as 230°C) to ensure the fluidity of the media and prevent the media inside the valve from solidifying or crystallizing, which could cause the valve to jam or become blocked, affecting the normal operation of the production process.

[0003] Currently, the commonly used valve heating methods mainly include heating with heat tracing tape and heating with integrated heating jacket. Although heating with heat tracing tape is relatively flexible in installation, the heating uniformity is poor, and local overheating or underheating is prone to occur. In addition, the heat tracing tape has low adhesion to the valve surface, resulting in greater heat loss and making it difficult to accurately control the valve temperature at 230℃. Integrated heating jackets are usually customized structures that match specific valve models, resulting in poor versatility. Furthermore, some integrated heating jackets have poor insulation performance and high energy consumption.

[0004] Therefore, there is a need for a heating valve sleeve that provides uniform heating, precise temperature control, versatility, easy maintenance, and good insulation performance to meet the industrial requirement of stably heating the valve and maintaining it at 230°C. Summary of the Invention

[0005] This utility model provides a valve body heating sleeve, the purpose of which is to solve the problems mentioned above.

[0006] This utility model embodiment provides a valve body heating sleeve, including a lower valve sleeve and an upper valve sleeve, wherein the upper valve sleeve is fitted over the outer side of the lower valve sleeve; a through-hole valve body cavity is opened at the top center of the lower valve sleeve, and two notches are symmetrically opened on the outer wall of the lower valve sleeve near the top position; valve body inlets and outlets are opened on the outer wall of the lower valve sleeve near the lower position of the two notches; a wire harness opening is provided at the center of the outer wall of the lower valve sleeve adjacent to the valve body inlet and outlet; and a Velcro fastener is provided on the outer wall of the lower valve sleeve near the outer position of the notch. The lower valve sleeve has a hook and loop fastener on its outer side wall adjacent to the valve body inlet and outlet, and a heat-conducting layer on its inner side wall. The upper valve sleeve has a pre-drilled hole at the center of its top, and a notch on one side of its outer wall near the top. A cable outlet is located on the side of the upper valve sleeve adjacent to the notch. The upper valve sleeve also has a hook and loop fastener and a hook and loop fastener on its outer side near the notch. The inner side wall of the upper valve sleeve has a hook and loop fastener.

[0007] Furthermore, an ultra-high temperature alloy heating wire is embedded inside the heat-conducting layer, and the arrangement density of the ultra-high temperature alloy heating wire meets the power requirement of heating the valve to 230°C. By adopting the above technical solution, the heat generated by the electric current of the ultra-high temperature alloy heating wire can control the valve temperature at 230℃, which facilitates the transportation of various high-purity special gases in the process equipment production of semiconductor, photovoltaic and other industries.

[0008] Furthermore, all six outer walls of the lower valve sleeve are covered with an insulation layer, which is made of aerospace insulation material; By adopting the above technical solution, the valve can be insulated through the insulation layer to avoid heat loss. Aerospace insulation materials can simultaneously improve the versatility, insulation and maintenance convenience of the heating valve sleeve.

[0009] Furthermore, the lower valve sleeve is fitted onto the valve, and a number of temperature sensors are evenly arranged between the outer wall of the valve and the heat-conducting layer. A control unit is arranged inside the lower valve sleeve, and the control unit, the ultra-high temperature alloy heating wire, and the temperature sensors are electrically connected. By adopting the above technical solution, the temperature of the valve surface is detected in real time by a temperature sensor. The control unit receives the temperature signal detected by the temperature sensor and controls the start and stop of the ultra-high temperature alloy heating wire and the heating power according to the temperature signal, so as to maintain the valve temperature at 230℃±2℃.

[0010] Furthermore, the first hook and loop fastener is located on the horizontal side of the first hook and loop fastener barbed surface, and the first hook and loop fastener and the first hook and loop fastener are mechanically connected by the fastener and the barbed surface. The second hook and loop fastener is located on the horizontal side of the second hook and loop fastener, and the second hook and loop fastener and the second hook and loop fastener are mechanically connected by the fastener and the barbed surface. By adopting the above technical solution, the mechanical interlocking between the Velcro straps can seal the first and second notches, thereby ensuring the stability of the lower and upper valve sleeves fixed on the valve and achieving the wrapping of the valve.

[0011] Furthermore, the first and second hook and loop fasteners are respectively provided with rough surfaces and barbed surfaces, and the first and second hook and loop fasteners are mechanically interlocked. By adopting the above technical solution, the lower valve sleeve and the upper valve sleeve are mechanically engaged, thereby ensuring that the upper valve sleeve is stably fitted onto the outside of the lower valve sleeve.

[0012] The beneficial effects of this utility model are as follows: This utility model, through the separate fitting of the lower valve sleeve and the upper valve sleeve, can attach and fix the heating valve sleeve to valves of different specifications, which has high compatibility, effectively avoids heat leakage and loss, and can achieve uniform heating and heat preservation of the valve, accurately control the valve temperature at 230℃, while improving the versatility, heat preservation and maintenance convenience of the heating valve sleeve, and reducing energy consumption.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the assembly of the lower valve sleeve and the valve body cavity in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the lower valve sleeve structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the upper valve sleeve structure according to an embodiment of the present utility model; Reference numerals: 1. Lower valve sleeve; 11. Valve body cavity; 12. Notch 1; 13. Valve body inlet / outlet; 14. Wiring harness opening; 15. Hook and loop fastener rough surface 1; 16. Hook and loop fastener barbed surface 1; 17. Butt hook and loop fastener 1; 18. Heat-conducting layer; 2. Upper valve sleeve; 21. Pre-drilled hole above the valve body; 22. Notch 2; 23. Cable outlet; 24. Butt hook and loop fastener 2; 25. Hook and loop fastener rough surface 2; 26. Hook and loop fastener barbed surface 2. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0016] Reference Figure 1-4This utility model embodiment proposes a valve body heating sleeve, including a lower valve sleeve 1 and an upper valve sleeve 2. Both the lower valve sleeve 1 and the upper valve sleeve 2 are made of flexible material. The flexible material enables the lower valve sleeve 1 and the upper valve sleeve 2 to bend and deform, allowing them to fit onto the valve and be compatible with various valves. The upper valve sleeve 2 is sleeved on the outside of the lower valve sleeve 1. All six outer walls of the lower valve sleeve 1 are covered with a heat insulation layer. The heat insulation layer is made of aerospace heat insulation material. The heat insulation layer can keep the valve warm and avoid heat loss. The aerospace heat insulation material also improves the versatility, heat insulation and maintenance convenience of the heating valve sleeve. The lower valve sleeve 1 has a through-hole valve body cavity 11 at the top center position, and two notches 12 are symmetrically opened on the outer wall of the lower valve sleeve 1 near the top position. Valve body inlet and outlet 13 are opened on the outer wall of the lower valve sleeve 1 near the lower position of the two notches 12. A wire harness opening 14 is provided at the center position of the outer wall of the lower valve sleeve 1 adjacent to the valve body inlet and outlet 13. A hook and loop fastener 15 and hook and loop fastener are provided on the outer wall of the lower valve sleeve 1 near the outer position of the notches 12. The hook-and-loop fastener 16 and the loop fastener 15 are located on the horizontal side of the hook-and-loop fastener 16, and the loop fastener 15 and the hook-and-loop fastener 16 are connected by mechanical interlocking of the loop fastener and the hook fastener. The mechanical interlocking of the hook-and-loop fastener can seal the notch 12, thereby ensuring the stability of the lower valve sleeve 1 fixed on the valve and achieving the wrapping of the valve. The lower valve sleeve 1 is provided with a mating hook-and-loop fastener 17 on the outer wall adjacent to the valve body inlet and outlet 13. The inner wall of the valve body cavity 11 is provided with... A heat-conducting layer 18 is provided, and an ultra-high temperature alloy heating wire is embedded inside the heat-conducting layer 18. The arrangement density of the ultra-high temperature alloy heating wire meets the power requirement of heating the valve to 230℃. The heat generated by the ultra-high temperature alloy heating wire is used to control the valve temperature at 230℃, which is convenient for the transportation of various high-purity special gases in the process equipment production of semiconductor, photovoltaic and other industries. The lower valve sleeve 1 is fitted on the valve. Several temperature sensors are evenly arranged between the outer wall of the valve and the heat-conducting layer 18. The lower valve sleeve 1 is equipped with a control unit. The control unit, ultra-high temperature alloy heating wire and temperature sensors are electrically connected. The control unit adopts a DVC6000 controller and the temperature sensor adopts a PT100 high-precision platinum resistance sensor. The temperature sensor detects the temperature of the valve surface in real time. The control unit receives the temperature signal detected by the temperature sensor and controls the start and stop of the ultra-high temperature alloy heating wire and the heating power according to the temperature signal to maintain the valve temperature at 230℃±2℃. Specifically, when installing the lower valve sleeve 1, the notch 12 is used to deform one side of the lower valve sleeve 1 and expand its cross-section. The lower valve sleeve 1 is then placed on the valve, and the hook and loop fastener surface 15 and the hook and loop fastener barbed surface 16 are brought into contact and adsorbed. The notch 12 is sealed by the mechanical interlocking of the hook and loop fastener. The lower valve sleeve 1 is wrapped around the valve, and the valve is heated by an ultra-high temperature alloy heating wire to make the internal gas temperature uniform and allow for stable flow.

[0017] A pre-drilled hole 21 for the valve body is provided at the center of the top of the upper valve sleeve 2, and a notch 22 is provided on the outer wall of one side of the upper valve sleeve 2 near the top. A cable outlet 23 is provided on the outer wall of the upper valve sleeve 2 adjacent to the notch 22. A hook and loop fastener surface 25 and a hook and loop barbed surface 26 are provided on the top of the upper valve sleeve 2 near the outer side of the notch 22. The hook and loop fastener surface 25 is located on the horizontal side of the hook and loop barbed surface 26, and the hook and loop fastener surface 25 and the hook and loop barbed surface 26 are mechanically interlocked by the fastener and the barbed surface. The upper valve sleeve 2 is mechanically connected to the valve by hook and loop fasteners, which can seal the notch 22 and ensure the stability of the upper valve sleeve 2 on the valve. It can also wrap the valve. The inner wall of the upper valve sleeve 2 is provided with hook and loop fasteners 24. Hook and loop fasteners 17 and 24 are respectively provided with rough and barbed surfaces. Hook and loop fasteners 17 and 24 are mechanically connected to each other, realizing the mechanical connection between the lower valve sleeve 1 and the upper valve sleeve 2, so that the upper valve sleeve 2 is stably fitted on the outside of the lower valve sleeve 1. Specifically, after fixing the upper and lower valve sleeves 1, the upper valve sleeve 2 is deformed on one side by using the notch 22 to expand its cross-section and fit onto the lower valve sleeve 1. At this time, the hook and loop fasteners 17 and 24 are in contact and adhered, and the hook and loop fastener rough side 25 and hook and loop fastener barbed side 26 are in contact and adhered. The mechanical interlocking of the hook and loop fasteners can seal the notch 22, insulate the lower valve sleeve 1, and can also be used to cover the bottom of the valve handle at the top of the valve, thus achieving the functions of heat preservation and fastening.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve body heating jacket, characterized in that: It includes a lower valve sleeve (1) and an upper valve sleeve (2), wherein the upper valve sleeve (2) is sleeved on the outside of the lower valve sleeve (1); The lower valve sleeve (1) has a through valve body cavity (11) at the top center position, and two notches (12) are symmetrically opened on the outer side wall of the lower valve sleeve (1) near the top position. Valve body inlet and outlet (13) are opened on the outer side wall of the lower valve sleeve (1) near the lower position of the two notches (12). A wire harness opening (14) is provided at the center position of the outer side wall of the lower valve sleeve (1) adjacent to the valve body inlet and outlet (13). A hook and loop fastener surface (15) and a hook and loop fastener barbed surface (16) are provided on the outer side wall of the lower valve sleeve (1) near the outer position of the notch (12). A hook and loop fastener (17) is provided on the outer side wall of the lower valve sleeve (1) adjacent to the valve body inlet and outlet (13). A heat-conducting layer (18) is provided on the inner side wall of the valve body cavity (11). The upper valve sleeve (2) has a pre-drilled hole (21) above the valve body at the top center position, and a notch (22) is provided on the outer wall of one side of the upper valve sleeve (2) near the top position. A cable outlet (23) is provided on the outer wall of the upper valve sleeve (2) adjacent to the notch (22). A hook and loop fastener (25) and a hook and loop fastener (26) are provided on the outer side of the top of the upper valve sleeve (2) near the notch (22). A hook and loop fastener (24) is provided on the inner side wall of the upper valve sleeve (2).

2. The valve body heating sleeve according to claim 1, characterized in that: The heat-conducting layer (18) is embedded with ultra-high temperature alloy heating wires, and the arrangement density of the ultra-high temperature alloy heating wires meets the power requirement of heating the valve to 230°C.

3. The valve body heating sleeve according to claim 1, characterized in that: The lower valve sleeve (1) is covered with a thermal insulation layer on all six outer walls, and the thermal insulation layer is made of aerospace thermal insulation material.

4. The valve body heating sleeve according to claim 1, characterized in that: The lower valve sleeve (1) is fitted onto the valve. Several temperature sensors are evenly arranged between the outer wall of the valve and the heat-conducting layer (18). A control unit is arranged inside the lower valve sleeve (1). The control unit, the ultra-high temperature alloy heating wire, and the temperature sensors are electrically connected.

5. The valve body heating sleeve according to claim 1, characterized in that: The first hook and loop fastener (15) is located on the horizontal side of the first hook and loop fastener (16), and the first hook and loop fastener (15) and the first hook and loop fastener (16) are mechanically connected by the fastener and the fastener. The second hook and loop fastener (25) is located on the horizontal side of the second hook and loop fastener (26), and the second hook and loop fastener (25) and the second hook and loop fastener (26) are mechanically connected by the fastener and the fastener.

6. The valve body heating sleeve according to claim 1, characterized in that: The first hook and loop fastener (17) and the second hook and loop fastener (24) are respectively provided with rough surface and barbed surface, and the first hook and loop fastener (17) and the second hook and loop fastener (24) are mechanically interlocked.

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