A high temperature resistant mechanical seal device

Abstract

The utility model relates to mechanical sealing equipment field especially relates to a high temperature resistant mechanical sealing device, technical scheme: a high temperature resistant mechanical sealing device, including have sealing device main part, placing groove, shape memory alloy ring, high temperature alloy seal ring, cooling tank, mounting hole and high temperature absorption rubber post, the inside of sealing device main part is provided with placing groove, the inside of placing groove is provided with shape memory alloy ring, one side of placing groove is provided with high temperature alloy seal ring, the inside of high temperature alloy seal ring is provided with cooling tank, one side of sealing device main part is provided with mounting hole, and the inside of mounting hole is provided with high temperature absorption rubber post, the utility model discloses through multilayer heat absorption heat insulation structure, when mechanical sealing device is in work, can multilayer to the heat that mechanical sealing device received absorbs insulation, prevents heat accumulation and causes damage to mechanical sealing device.

Description

Technical Field

[0001] This utility model relates to the field of mechanical sealing equipment, and in particular to a high-temperature resistant mechanical sealing device. Background Technology

[0002] A mechanical seal is a sealing element used at the end of a rotating machinery shaft. Its core function is to prevent the medium from leaking along the rotating shaft and to prevent external impurities from entering the equipment. It is used in industrial fields, especially in scenarios where high temperature, high pressure, high speed, or corrosive media need to be handled.

[0003] Existing mechanical seal devices typically use rubber or polytetrafluoroethylene (PTFE) sealing rings to seal the interior. Under high temperatures, the elastic modulus is easily reduced due to molecular chain breakage, leading to hardening, brittleness, or even failure. Creep may also occur under long-term high temperatures, causing changes in the sealing gap and significantly reducing sealing performance.

[0004] Existing mechanical seal devices typically use rubber or PTFE sealing rings to seal the interior. Under high temperatures, this can easily lead to a decrease in elastic modulus due to molecular chain breakage, resulting in hardening, brittleness, or even failure. Furthermore, creep can occur under prolonged high temperatures, causing changes in the sealing gap and significantly reducing sealing performance. This solution utilizes a multi-layered heat-absorbing and insulating structure. When the mechanical seal device is in operation, multiple layers absorb and isolate the heat received by the device, preventing heat accumulation and damage. Utility Model Content

[0005] To overcome the problems of existing mechanical seal devices, which typically use rubber or polytetrafluoroethylene (PTFE) sealing rings to seal the inside of the mechanical seal device, the elastic modulus is easily reduced due to molecular chain breakage at high temperatures, leading to hardening, brittleness, or even failure. Creep may also occur under long-term high temperatures, causing changes in the sealing gap and greatly reducing the sealing performance.

[0006] The technical solution of this utility model is as follows: a high-temperature resistant mechanical seal device, comprising a sealing device body, a placement groove, a shape memory alloy ring, a high-temperature alloy sealing ring, a cooling groove, a mounting hole, and a high-temperature absorbent column. The placement groove is provided on the inner side of the sealing device body, and the shape memory alloy ring is disposed inside the placement groove. The high-temperature alloy sealing ring is disposed on one side of the placement groove. The cooling groove is provided on the inner side of the high-temperature alloy sealing ring. The mounting hole is provided on one side of the sealing device body, and the high-temperature absorbent column is disposed inside the mounting hole.

[0007] Preferably, the shape memory alloy ring is installed and accommodated through the placement groove, the interior of the sealing device body is sealed by the high-temperature alloy sealing ring, the cooling groove facilitates the flow of high-temperature airflow in the high-temperature environment to prevent high-temperature airflow blockage from causing damage to the interior of the sealing device body, and the high-temperature absorbing adhesive column is installed through the mounting hole to assist in the absorption of high temperature.

[0008] Preferably, a mounting block is provided on the top surface of the sealing device body, and a temperature detector is provided on the top surface of the mounting block.

[0009] Preferably, the outer side of the sealing device body is provided with a mounting groove, and a mounting base is provided inside the mounting groove.

[0010] Preferably, a pressure-reducing sleeve is provided on the other side of the main body of the sealing device, and a protective shell is provided on the outside of the pressure-reducing sleeve.

[0011] Preferably, the pressure reducing sleeve has limit grooves on both sides, and the sealing device body has limit posts on both sides at one end, with the limit posts located inside the limit grooves.

[0012] Preferably, a damping telescopic rod is provided on the inner side of the pressure-reducing sleeve, and a pressure-reducing spring is sleeved on the outer side of the damping telescopic rod.

[0013] Preferably, the inner side of the pressure-reducing sleeve is provided with a receiving groove, and the inside of the receiving groove is provided with a heat insulation layer.

[0014] The beneficial effects of this utility model are:

[0015] Compared to traditional mechanical seals, which typically use rubber or PTFE sealing rings to seal the interior, high temperatures can easily lead to a decrease in elastic modulus due to molecular chain breakage, resulting in hardening, brittleness, or even failure. Prolonged exposure to high temperatures can also cause creep, altering the sealing gap and significantly reducing sealing performance. This solution utilizes a multi-layered heat-absorbing and insulating structure. When the mechanical seal is in operation, multiple layers absorb and isolate the heat received by the seal, preventing heat buildup and damage. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a high-temperature resistant mechanical seal device according to this utility model.

[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of a high-temperature resistant mechanical sealing device according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the bottom surface of a high-temperature resistant mechanical seal device according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural representation of the internal structure of a high-temperature resistant mechanical seal device according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Sealing device body; 201. Placement groove; 202. Shape memory alloy ring; 203. High-temperature alloy sealing ring; 204. Cooling groove; 205. Mounting hole; 206. High-temperature absorbent column; 301. Mounting block; 302. Temperature detector; 401. Mounting groove; 402. Mounting base; 501. Pressure relief sleeve; 502. Protective shell; 601. Limiting post; 602. Limiting groove; 701. Damping telescopic rod; 702. Pressure relief spring; 801. Receiving groove; 802. Heat insulation layer. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 4 This utility model provides an embodiment: a high-temperature resistant mechanical seal device, including a sealing device body 1, a placement groove 201, a shape memory alloy ring 202, a high-temperature alloy sealing ring 203, a cooling groove 204, a mounting hole 205, and a high-temperature absorbent column 206. The placement groove 201 is provided on the inner side of the sealing device body 1, and the shape memory alloy ring 202 is disposed inside the placement groove 201. The high-temperature alloy sealing ring 203 is disposed on one side of the placement groove 201, and the cooling groove 204 is provided on the inner side of the high-temperature alloy sealing ring 203. The mounting hole 205 is provided on one side of the sealing device body 1, and the high-temperature absorbent column 206 is disposed inside the mounting hole 205.

[0023] Please see Figure 2 and Figure 3 In this embodiment, a mounting block 301 is provided on the top surface of the sealing device body 1, and a temperature detector 302 is provided on the top surface of the mounting block 301. In use, the temperature detector 302 is installed through the mounting block 301, and the temperature detector 302 monitors the internal temperature of the sealing device body 1 in real time. A mounting groove 401 is provided on the outer side of the sealing device body 1, and a mounting base 402 is provided inside the mounting groove 401. In use, the mounting base 402 is installed through the mounting groove 401. A pressure-reducing sleeve 501 is provided on the other side of the sealing device body 1, and a protective shell 502 is provided on the outer side of the pressure-reducing sleeve 501. In use, the pressure-reducing sleeve 501 is fitted onto the outside of the sealing device body 1 to absorb the lateral pressure received by the sealing device body 1, and the protective shell 502 protects the outer side of the pressure-reducing sleeve 501.

[0024] Limiting grooves 602 are provided on both sides of the pressure-reducing sleeve 501. Limiting posts 601 are provided on both sides of one end of the sealing device body 1. The limiting posts 601 are located inside the limiting grooves 602. In use, the pressure-reducing sleeve 501 is installed through the limiting posts 601 and the limiting posts 601 are limited and fixed through the limiting grooves 602. A damping telescopic rod 701 is provided on the inner side of the pressure-reducing sleeve 501. A pressure-reducing spring 702 is sleeved on the outer side of the damping telescopic rod 701. In use, the pressure-reducing sleeve 501 is moved by the damping telescopic rod 701 to extend and retract. The pressure-reducing spring 702 reduces and absorbs the pressure on the damping telescopic rod 701. A receiving groove 801 is provided on the inner side of the pressure-reducing sleeve 501. A heat insulation layer 802 is provided inside the receiving groove 801. In use, the heat insulation layer 802 is installed through the receiving groove 801 and isolating the heat outside the pressure-reducing sleeve 501.

[0025] During operation, the shape memory alloy ring 202 is installed and accommodated through the placement groove 201, the interior of the sealing device body 1 is sealed through the high temperature alloy sealing ring 203, the cooling groove 204 facilitates the flow of high temperature airflow in the high temperature environment, and prevents the high temperature airflow from blocking and causing damage to the interior of the sealing device body 1. The high temperature absorbing adhesive column 206 is installed through the mounting hole 205, and the high temperature absorbing adhesive column 206 assists in absorbing high temperature.

[0026] Simultaneously, the temperature detector 302 is installed via the mounting block 301, and the temperature detector 302 monitors the internal temperature of the sealing device body 1 in real time. The mounting base 402 is installed via the mounting groove 401, and the sealing device body 1 is installed via the mounting base 402. The pressure-reducing sleeve 501 is fitted onto the outside of the sealing device body 1 to absorb the lateral pressure received by the sealing device body 1. The outer shell 502 protects the outside of the pressure-reducing sleeve 501. The pressure-reducing sleeve 501 is installed via the limiting post 601, and the limiting post 601 is limited and fixed via the limiting groove 602. The pressure-reducing sleeve 501 is extended and retracted via the damping telescopic rod 701, and the pressure-reducing spring 702 absorbs and reduces the pressure on the damping telescopic rod 701.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-temperature resistant mechanical seal device, comprising a sealing device body (1), characterized in that: It also includes a placement groove (201), a shape memory alloy ring (202), a high-temperature alloy sealing ring (203), a cooling groove (204), a mounting hole (205), and a high-temperature absorbent column (206). The placement groove (201) is provided on the inner side of the sealing device body (1). The shape memory alloy ring (202) is provided inside the placement groove (201). The high-temperature alloy sealing ring (203) is provided on one side of the placement groove (201). The cooling groove (204) is provided on the inner side of the high-temperature alloy sealing ring (203). The mounting hole (205) is provided on one side of the sealing device body (1). The high-temperature absorbent column (206) is provided inside the mounting hole (205).

2. The high-temperature resistant mechanical seal device according to claim 1, characterized in that: A mounting block (301) is provided on the top surface of the sealing device body (1), and a temperature detector (302) is provided on the top surface of the mounting block (301).

3. The high-temperature resistant mechanical seal device according to claim 1, characterized in that: An installation groove (401) is provided on the outer side of the sealing device body (1), and an installation base (402) is provided inside the installation groove (401).

4. The high-temperature resistant mechanical seal device according to claim 1, characterized in that: A pressure-reducing sleeve (501) is provided on the other side of the sealing device body (1), and a protective shell (502) is provided on the outside of the pressure-reducing sleeve (501).

5. A high-temperature resistant mechanical seal device according to claim 4, characterized in that: Limiting grooves (602) are provided on both sides of the pressure reducing sleeve (501), and limiting posts (601) are provided on both sides of one end of the sealing device body (1), with the limiting posts (601) located inside the limiting grooves (602).

6. A high-temperature resistant mechanical seal device according to claim 4, characterized in that: A damping telescopic rod (701) is provided on the inner side of the pressure-reducing sleeve (501), and a pressure-reducing spring (702) is sleeved on the outer side of the damping telescopic rod (701).

7. A high-temperature resistant mechanical seal device according to claim 4, characterized in that: The inner side of the pressure reducing sleeve (501) is provided with a receiving groove (801), and the inside of the receiving groove (801) is provided with a heat insulation layer (802).

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