Jacket seal head of polycrystalline silicon reduction furnace

Abstract

The utility model discloses a jacket seal head of a polycrystalline silicon reduction furnace, which relates to the technical field of seal heads and comprises a seal head body and a convex structure arranged on the seal head body, a cavity is arranged in the seal head body, a water inlet cover is fixedly arranged in the middle of the inner side of the cavity, a flow guide plate is arranged on the outer side of the water inlet cover, and the flow guide plate is arranged in the cavity. The flow guide plate is of a vortex-shaped structure, and the flow guide plate is arranged in the cavity. The cavity is formed in the end socket body, a heat medium or a refrigerant can circulate in the cavity so as to achieve the heat exchange effect of the end socket body, the flow guide plates of the vortex structures are arranged in the cavity, the vortex structures can play a role in guiding flowing of the heat medium or the refrigerant, and therefore the heat exchange effect of the end socket body is improved. The heat exchange effect of a heating medium or a refrigerant and the end socket body is improved, and therefore the temperature control effect of the end socket body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing heads, in particular to a jacketed sealing head for a polysilicon reduction furnace. Background Art

[0002] Jacketed heads are end caps used on jacketed pressure vessels. They are a primary pressure-bearing component and provide a seal. Jacketed pressure vessels are essentially pressure vessels that can exchange heat and cold. Depending on the needs of the reactants within the vessel, heating or cooling is achieved through the interlayer using a carrier. Existing jacketed heads have simple structures, poor uniformity, and limited operational stability, failing to meet practical requirements.

[0003] For example, a jacketed head with publication number CN210510260U belongs to the field of chemical equipment. It includes an inner head and an outer head; the cross-sections of the inner and outer heads are both semi-elliptical ring structures, and the lower end of the semi-elliptical ring structure is also provided with a straight edge section; a chamber is formed between the inner and outer heads. The jacketed head of this utility model can achieve good thermal insulation effect, and the jacketed head is integrally formed with high structural strength, which can meet the requirements of large-scale, high-intensity environments. There are no gaps on the inner and outer surfaces, which facilitates cleaning and reduces corrosion.

[0004] The above technical solution has the problems of simple structure and poor carrier heat exchange effect in practical application.

[0005] Therefore, it is necessary to invent a polysilicon reduction furnace jacket head to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a jacketed head for a polysilicon reduction furnace to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a jacketed head for a polysilicon reduction furnace, comprising a head body, a "convex" structure provided on the head body, a cavity provided inside the head body, a water inlet hood fixedly provided in the middle inner part of the cavity, a guide plate provided on the outer side of the water inlet hood, the guide plate provided as a vortex structure, and the guide plate provided inside the cavity, a return water hood fixedly provided at the bottom end of the outer wall of the head body, the return water hood provided as an annular structure, and the inner side of the return water hood is communicated with the bottom end of the cavity, a guide hole is provided on the outer wall of the water inlet hood, and one end of the guide hole extends to the interior of the cavity, a fixed block is fixedly provided at the inner bottom end of the water inlet hood, and the fixed block is provided as a hemispherical structure.

[0008] Preferably, a water inlet pipe is fixedly provided at the middle part of the top end of the head body, and the bottom end of the water inlet pipe extends to the interior of the water inlet cover.

[0009] Preferably, a return water pipe is provided through the middle of the outer side wall of the return water cover, and one end of the return water pipe extends to the interior of the return water cover.

[0010] Preferably, a transition surface is provided at the bottom end of the inner side wall of the water return cover, and the transition surface is provided as an arc-shaped structure.

[0011] Preferably, a connecting flange is fixedly provided on the bottom end of the head body, and a plurality of mounting holes are arranged around the upper surface of the connecting flange.

[0012] Preferably, a plurality of the guide holes are provided, and the plurality of guide holes are arranged in a surrounding manner.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The present invention provides a cavity inside the head body, through which a heat medium or a coolant can flow, to achieve a heat exchange effect of the head body. A guide plate with a vortex structure is provided inside the cavity. The vortex structure can guide the flow of the heat medium or the coolant, thereby improving the heat exchange effect between the heat medium or the coolant and the head body, thereby improving the temperature control effect of the head body.

[0015] 2. The utility model sets a head body, and a water inlet cover is set at the internal top end of the head body, and a water return cover is set at the outer bottom end of the head body. The water inlet cover and the water return cover cooperate to realize the output and input of the refrigerant or the heat medium. By setting a plurality of guide holes around the outer side of the water inlet cover, the setting of the plurality of guide holes can ensure the uniformity of the circulation of the refrigerant or the heat medium, thereby ensuring the temperature control effect of the head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a schematic top-sectional view of the overall structure of the present invention.

[0019] In the figure: 1. Head body; 2. Cavity; 3. Water inlet cover; 4. Guide plate; 5. Return water cover; 6. Diversion hole; 7. Fixing block; 8. Water inlet pipe; 9. Return water pipe; 10. Transition surface; 11. Connecting flange; 12. Mounting hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0021] The utility model provides Figure 1-3 The illustrated embodiment of a jacketed head for a polysilicon reduction furnace comprises a head body 1, a convex structure provided on the head body 1, a cavity 2 provided inside the head body 1, a water inlet hood 3 fixedly provided in the middle of the inner side of the cavity 2, a guide plate 4 provided on the outer side of the water inlet hood 3, the guide plate 4 being a vortex structure and disposed inside the cavity 2, a water return hood 5 fixedly provided at the bottom end of the outer side wall of the head body 1, the water return hood 5 being annular in structure, and the inner side of the water return hood 5 being connected to the bottom end of the cavity 2;

[0022] Specifically, a guide hole 6 is formed on the outer wall of the water inlet cover 3, and one end of the guide hole 6 extends into the interior of the cavity 2. A plurality of guide holes 6 are provided, and the plurality of guide holes 6 are arranged in a surrounding manner. The arrangement of the guide holes 6 allows the refrigerant or heat medium in the water inlet cover 3 to be evenly dispersed into the cavity 2.

[0023] More specifically, a fixing block 7 is fixedly provided at the bottom end of the inner part of the water inlet cover 3, and the fixing block 7 is set to a hemispherical structure, a water inlet pipe 8 is fixedly provided at the middle part of the top of the head body 1, and the bottom end of the water inlet pipe 8 extends to the inside of the water inlet cover 3, and the setting of the water inlet pipe 8 facilitates the input of the refrigerant or heat medium in the cavity 2, and a return pipe 9 is provided through the middle part of the outer wall of the return water cover 5, and one end of the return water pipe 9 extends to the inside of the return water cover 5. The setting of the return water pipe 9 facilitates the discharge of the refrigerant or heat medium in the cavity 2, and a transition surface 10 is provided at the bottom end of the inner side wall of the return water cover 5, and the transition surface 10 is set to an arc structure. The setting of the transition surface 10 facilitates the transition of the refrigerant or heat medium in the cavity 2 to the return water cover 5;

[0024] In addition, a connecting flange 11 is fixedly provided at the bottom end of the head body 1, and a plurality of mounting holes 12 are arranged around the upper surface of the connecting flange 11. The connecting flange 11 cooperates with the mounting holes 12 to facilitate the installation and fixation of the head body 1.

[0025] To sum up, the utility model sets a cavity 2 inside the head body 1, and the cavity 2 can be used for circulation of heat medium or refrigerant to achieve the heat exchange effect of the head body 1; and sets a guide plate 4 with a vortex structure inside the cavity 2. The setting of the vortex structure can guide the flow of the heat medium or refrigerant to enhance the heat exchange effect between the heat medium or refrigerant and the head body 1, thereby enhancing the temperature control effect of the head body 1; a water inlet hood 3 is provided at the top inner end of the head body 1, and a water return hood 5 is provided at the bottom outer end of the head body 1; the water inlet hood 3 cooperates with the water return hood 5 to realize the output and input of the refrigerant or heat medium; and a plurality of guide holes 6 are set around the outer side of the water inlet hood 3. The setting of the plurality of guide holes 6 can ensure the uniformity of the circulation of the refrigerant or heat medium, thereby ensuring the temperature control effect of the head body 1.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A jacketed head for a polysilicon reduction furnace, comprising a head body (1), characterized in that: The head body (1) is provided with a "convex" structure, a cavity (2) is provided inside the head body (1), a water inlet cover (3) is fixedly provided in the middle of the inner side of the cavity (2), a guide plate (4) is provided on the outer side of the water inlet cover (3), the guide plate (4) is provided in a vortex structure, and the guide plate (4) is provided inside the cavity (2), a return water cover (5) is fixedly provided at the bottom end of the outer wall of the head body (1), the return water cover (5) is provided in an annular structure, and the inner side of the return water cover (5) is connected to the bottom end of the cavity (2), a guide hole (6) is provided on the outer wall of the water inlet cover (3), and one end of the guide hole (6) extends to the inside of the cavity (2), a fixed block (7) is fixedly provided at the inner bottom end of the water inlet cover (3), and the fixed block (7) is provided in a hemispherical structure.

2. The jacketed head of a polysilicon reduction furnace according to claim 1, characterized in that: A water inlet pipe (8) is fixedly provided at the middle of the top end of the head body (1), and the bottom end of the water inlet pipe (8) extends to the interior of the water inlet cover (3).

3. The jacketed head of a polysilicon reduction furnace according to claim 2, characterized in that: A water return pipe (9) is provided through the middle of the outer wall of the water return cover (5), and one end of the water return pipe (9) extends to the interior of the water return cover (5).

4. The jacketed head of a polysilicon reduction furnace according to claim 3, characterized in that: A transition surface (10) is provided at the bottom end of the inner side wall of the water return cover (5), and the transition surface (10) is configured as an arc-shaped structure.

5. The jacketed head of a polysilicon reduction furnace according to claim 4, characterized in that: A connecting flange (11) is fixedly provided at the bottom end of the head body (1), and a plurality of mounting holes (12) are arranged around the upper surface of the connecting flange (11).

6. The jacketed head of a polysilicon reduction furnace according to claim 5, characterized in that: A plurality of the guide holes (6) are provided, and the plurality of guide holes (6) are arranged in a surrounding manner.

Images