Mechanical sealing equipment with heat dissipation structure for high-temperature oil pump

Abstract

The utility model provides mechanical sealing equipment with a heat dissipation structure for a high-temperature oil pump, which comprises a first shell, a first mounting disc is fixedly mounted at the bottom of the first shell, a second shell is arranged at the top of the first shell, a second mounting disc is fixedly mounted at the top of the second shell, and the second mounting disc is fixedly mounted at the bottom of the second shell. A heat dissipation mechanism is arranged in an inner cavity of the first shell and comprises a liquid inlet valve, the liquid inlet valve is fixedly installed on the left side of the first shell, a liquid drainage valve is fixedly installed on the right side of the first shell, refrigerating fluid is injected into the inner cavity of the first shell, and a refrigerating block is fixedly installed in the inner cavity of the first shell. The periphery of the inner cavity of the first shell is provided with refrigerating blocks, the inner sides of the six refrigerating blocks are refrigerating ends, the heat dissipation mechanism is arranged, the temperature of the first shell is reduced, normal work of the mechanical seal is guaranteed, therefore, the overall performance of equipment is improved, the service life of the equipment is prolonged, and the situation that due to too high heat, a sealing ring deforms is avoided.

Description

Technical Field

[0001] The utility model relates to mechanical sealing equipment for a high-temperature oil pump with a heat dissipation structure, belonging to the technical field of mechanical sealing. Background Art

[0002] Mechanical seal is a shaft sealing device used in rotating fluid machinery. It is widely used in centrifugal pumps, centrifuges, reactors, compressors and other equipment. Its main function is to prevent the medium in the equipment from leaking out through the circumferential gap between the shaft and the equipment, or to prevent air from leaking into the equipment when the pressure inside the equipment is lower than atmospheric pressure.

[0003] A Chinese public patent (publication number: CN 221120299 U) discloses a mechanical seal assembly for a high-temperature oil pump, which belongs to the technical field of high-temperature oil pumps. The mechanical seal assembly for a high-temperature oil pump comprises a first mounting plate, the top of which is fixedly connected to a connecting seat, the inner bottom end of which is fixedly connected to an annular support plate; a buffer mechanism is installed on the top of the annular support plate, a connecting plate is installed on the top of the buffer mechanism, a first sealing ring is installed on the top of the connecting plate, and a bearing is installed on the top of the first sealing ring. The utility model is designed with an oil filling mechanism, and the mechanical seal assembly can inject lubricating oil into the bearing installed in the connecting seat through the oil filling seat, thereby improving the use effect of the bearing, and the oil filling hole on the oil filling seat is sealed by a sealing pin, and the outer end of the sealing pin is a hexagonal hole, which is convenient for the staff to quickly install and disassemble with a hexagonal screwdriver. It is not only simple to operate, but also has strong sealing performance.

[0004] Mechanical seals generate heat during operation, and this heat needs to be removed in time through the heat dissipation system. If the heat cannot be dissipated, the temperature in the sealing cavity will rise rapidly, which may cause the sealing ring to deform, wear or even rupture, thereby causing the sealing performance of the mechanical seal to deteriorate, thereby affecting the normal use of the high-temperature oil pump, and may cause equipment failure and safety accidents.

[0005] Therefore, a mechanical sealing device for a high-temperature oil pump with a heat dissipation structure is proposed. Utility Model Content

[0006] In view of this, the present invention provides a mechanical sealing device for a high-temperature oil pump with a heat dissipation structure to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the present utility model is achieved as follows: a mechanical sealing device for a high-temperature oil pump with a heat dissipation structure comprises a first shell, a first mounting plate is fixedly mounted on the bottom of the first shell, a second shell is provided on the top of the first shell, a second mounting plate is fixedly mounted on the top of the second shell, a heat dissipation mechanism is provided in the inner cavity of the first shell, the heat dissipation mechanism comprises an inlet valve, the inlet valve is fixedly mounted on the left side of the first shell, a drain valve is fixedly mounted on the right side of the first shell, refrigerant is injected into the inner cavity of the first shell, a refrigeration block is fixedly mounted in the inner cavity of the first shell, refrigeration blocks are provided around the inner cavity of the first shell, the inner sides of the six refrigeration blocks are all refrigeration ends, the outer sides of the six refrigeration blocks are all heat dissipation ends, and a card slot is provided on the inner side of the heat dissipation block.

[0008] Further preferably, the heat dissipation block is tooth-shaped, and the inner side of the heat dissipation block is in contact with the inner wall of the inner cavity of the first shell.

[0009] Further preferably, the surfaces of the heat dissipation blocks are provided with flow holes, and the flow holes are arranged at equal intervals.

[0010] Further preferably, a sealing ring is fixedly installed on the top of the first shell, and sealing strips are fixedly installed on the outer sides of the six refrigeration blocks, and the sealing ring and the sealing strips are both made of rubber.

[0011] Further preferably, the surface of the first shell is provided with mounting grooves, and the six refrigeration blocks are sealed and connected to the inner cavities of the six mounting grooves.

[0012] Further preferably, clamping blocks are fixedly installed around the inner side of the inner cavity of the first shell, and the six clamping blocks are all clamped in the inner cavities of the six clamping slots.

[0013] Further preferably, the surface of the second housing is threadedly connected with mounting bolts, and the bottoms of the mounting bolts are threadedly connected to the sealing ring and the inner surface of the first housing.

[0014] Further preferably, screw holes are provided on the surfaces of the first mounting plate and the second mounting plate, and the size of the screw holes on the surface of the second mounting plate is smaller than the size of the screw holes on the surface of the first mounting plate.

[0015] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model provides a heat dissipation mechanism, which cools the refrigerant in the inner cavity of the first shell through the output of the refrigeration end of the refrigeration block. The low temperature of the refrigerant is then conducted to the surface of the first shell through the heat dissipation block, thereby reducing the temperature of the surface of the first shell. The temperature of the first shell is reduced, ensuring the normal operation of the mechanical seal, thereby improving the overall performance and service life of the equipment and avoiding deformation of the sealing ring due to excessive heat.

[0017] Second, the present invention provides a heat sink block. Due to the characteristics of its shape, the heat sink block can be in contact with the refrigerant liquid in the inner cavity of the first housing on multiple sides, thereby improving the heat dissipation effect of the refrigerant liquid on the first housing. By providing a flow hole, the refrigerant liquid can flow into the inner cavity of the flow hole, thereby increasing the contact area of ​​the refrigerant liquid with the heat sink block and improving the heat dissipation of the entire first housing. By providing a sealing ring and a sealing strip, the connection between the first housing, the second housing and the heat sink block can be sealed, thereby preventing the refrigerant liquid from leaking and ensuring the stability of the equipment operation. By providing a mounting groove, the heat sink block can be clamped, thereby facilitating the heat dissipation end of the heat sink to be located outside the inner cavity of the first housing, thereby facilitating the heat dissipation of the heat sink. By providing a clamping block, the position of the heat sink block can be fixed, thereby facilitating the separate removal of the heat sink block and facilitating maintenance of the heat sink block. By providing a mounting bolt, the second housing and the first housing can be connected, thereby facilitating maintenance of the components in the inner cavity of the first housing. By providing a screw hole, the entire equipment can be conveniently mounted inside the oil pump by bolts, thereby improving the convenience of equipment installation.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the disassembly structure of the second shell of the present invention;

[0022] Figure 3 This is a schematic diagram of the disassembly structure of the body cooling block of the present utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly structure of the heat dissipation block of the present utility model;

[0024] Figure 5 For the utility model Figure 3 A is an enlarged structural diagram.

[0025] Figure numerals: 1. first shell; 2. heat dissipation mechanism; 201. liquid inlet valve; 202. liquid discharge valve; 203. refrigeration block; 204. heat dissipation block; 205. circulation hole; 206. slot; 207. block; 208. sealing ring; 209. sealing strip; 210. mounting groove; 3. second shell; 4. first mounting plate; 5. second mounting plate; 6. screw hole; 7. mounting bolt. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-5As shown, the embodiment of the present invention provides a mechanical sealing device for a high-temperature oil pump with a heat dissipation structure, comprising a first shell 1, a first mounting plate 4 is fixedly mounted on the bottom of the first shell 1, a second shell 3 is provided on the top of the first shell 1, a second mounting plate 5 is fixedly mounted on the top of the second shell 3, a heat dissipation mechanism 2 is provided in the inner cavity of the first shell 1, the heat dissipation mechanism 2 comprises an inlet valve 201, the inlet valve 201 is fixedly mounted on the left side of the first shell 1, a drain valve 202 is fixedly mounted on the right side of the first shell 1, refrigerant is injected into the inner cavity of the first shell 1, a refrigeration block 203 is fixedly mounted in the inner cavity of the first shell 1, refrigeration blocks 203 are provided around the inner cavity of the first shell 1, the inner sides of the six refrigeration blocks 203 are all refrigeration ends, and the six refrigeration blocks 203 The outer sides of the six cooling blocks 203 are all heat dissipation ends, and the inner sides of the cooling blocks 204 are provided with card slots 206. The cooling blocks 204 are tooth-shaped, and the inner sides of the cooling blocks 204 are attached to the inner wall of the inner cavity of the first shell 1. The surfaces of the cooling blocks 204 are provided with circulation holes 205, and the circulation holes 205 are arranged equidistantly. A sealing ring 208 is fixedly installed on the top of the first shell 1, and sealing strips 209 are fixedly installed on the outer sides of the six cooling blocks 203, and the sealing rings 208 and the sealing strips 209 are made of rubber. The surface of the first shell 1 is provided with mounting grooves 210, and the six cooling blocks 203 are all sealed and connected to the inner cavities of the six mounting grooves 210. Card blocks 207 are fixedly installed around the inner side of the inner cavity of the first shell 1, and the six card blocks 207 are all snapped into the inner cavities of the six card slots 206.

[0030] By providing a heat dissipation mechanism 2, the refrigerant in the inner cavity of the first shell 1 is cooled by the output of the refrigeration end of the refrigeration block 203, and then the low temperature of the refrigerant is conducted to the surface of the first shell 1 through the heat dissipation block 204, so that the temperature of the surface of the first shell 1 is reduced, the temperature of the first shell 1 is reduced, and the normal operation of the mechanical seal is ensured, thereby improving the overall performance and service life of the equipment, and avoiding the deformation of the sealing ring due to excessive heat. By providing the heat dissipation block 204, due to the characteristics of its shape, the heat dissipation block 204 can be in contact with the refrigerant in the inner cavity of the first shell 1 on multiple sides, thereby improving the heat dissipation effect of the refrigerant on the first shell 1. By providing the circulation hole 205, the refrigerant can flow in the inner cavity of the circulation hole 205. , which increases the contact area between the refrigerant and the heat sink 204, thereby improving the heat dissipation of the first shell 1 as a whole. By providing a sealing ring 208 and a sealing strip 209, the interconnected parts of the first shell 1, the second shell 3 and the refrigeration block 203 can be sealed, thereby avoiding the leakage of the refrigerant and ensuring the stability of the equipment operation. By providing a mounting groove 210, the refrigeration block 203 can be clamped, thereby facilitating the heat dissipation end of the refrigeration block 203 to be located outside the inner cavity of the first shell 1, thereby facilitating the heat dissipation of the refrigeration block 203. By providing a clamping block 207, the position of the heat sink 204 can be fixed, thereby facilitating the separate disassembly of the heat sink 204 and facilitating the repair and maintenance of the heat sink 204.

[0031] Example 2

[0032] like Figure 1 and Figure 2 As shown, in one embodiment, the surface of the second shell 3 is threadedly connected with a mounting bolt 7, the bottom of the mounting bolt 7 is threadedly connected to the sealing ring 208 and the inner surface of the first shell 1, and the surfaces of the first mounting plate 4 and the second mounting plate 5 are both provided with screw holes 6.

[0033] By providing mounting bolts 7, the second shell 3 and the first shell 1 can be connected, thereby facilitating the repair and maintenance of the components in the inner cavity of the first shell 1. By providing screw holes 6, the entire device can be conveniently installed inside the oil pump through bolts, thereby improving the convenience of device installation. By providing screw holes 6, since the number of screw holes 6 is symmetrical and they are arranged at equal distances, the stability of the entire device can be improved after it is installed in the oil pump.

[0034] When the present invention is working: first, refrigerant is injected into the inner cavity of the first shell 1 through the liquid inlet valve 201, and then the refrigeration block 203 is operated. At this time, the refrigeration end inside the refrigeration block 203 cools the refrigerant in the inner cavity of the first shell 1. At this time, the heat of the first shell 1 during operation is conducted to the heat dissipation block 204 through the heat dissipation block 204. The refrigerant, due to its own state, dissipates the high temperature conducted by the heat dissipation block 204. When the refrigerant in the inner cavity of the first shell 1 is used for a long time, it is discharged through the drain valve 202, thereby completing the heat dissipation of the mechanical seal.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A mechanical sealing device for a high-temperature oil pump with a heat dissipation structure, comprising a first housing (1), characterized in that: A first mounting plate (4) is fixedly mounted on the bottom of the first shell (1), a second shell (3) is provided on the top of the first shell (1), a second mounting plate (5) is fixedly mounted on the top of the second shell (3), a heat dissipation mechanism (2) is provided in the inner cavity of the first shell (1), the heat dissipation mechanism (2) comprises a liquid inlet valve (201), the liquid inlet valve (201) is fixedly mounted on the left side of the first shell (1), a liquid discharge valve (202) is fixedly mounted on the right side of the first shell (1), refrigerant is injected into the inner cavity of the first shell (1), a refrigeration block (203) is fixedly mounted in the inner cavity of the first shell (1), refrigeration blocks (203) are provided around the inner cavity of the first shell (1), the inner sides of the six refrigeration blocks (203) are all refrigeration ends, the outer sides of the six refrigeration blocks (203) are all heat dissipation ends, and the inner sides of the heat dissipation blocks (204) are all provided with card slots (206).

2. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 1, characterized in that: The heat dissipation block (204) is tooth-shaped, and the inner side of the heat dissipation block (204) is in contact with the inner wall of the inner cavity of the first shell (1).

3. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 1, characterized in that: The surfaces of the heat dissipation blocks (204) are all provided with circulation holes (205), and the circulation holes (205) are arranged at equal intervals.

4. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 1, characterized in that: A sealing ring (208) is fixedly mounted on the top of the first shell (1), and sealing strips (209) are fixedly mounted on the outer sides of the six refrigeration blocks (203), and the sealing ring (208) and the sealing strips (209) are both made of rubber.

5. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 1, characterized in that: The surface of the first shell (1) is provided with mounting grooves (210), and the six refrigeration blocks (203) are sealed and connected to the inner cavities of the six mounting grooves (210).

6. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 1, characterized in that: Clamping blocks (207) are fixedly installed around the inner side of the inner cavity of the first shell (1), and the six clamping blocks (207) are clamped in the inner cavities of the six clamping slots (206).

7. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 4, characterized in that: The surface of the second housing (3) is threadedly connected with mounting bolts (7), and the bottoms of the mounting bolts (7) are threadedly connected to the sealing ring (208) and the inner surface of the first housing (1).

8. The mechanical sealing device for a high-temperature oil pump with a heat dissipation structure according to claim 1, characterized in that: The surfaces of the first mounting plate (4) and the second mounting plate (5) are both provided with screw holes (6), and the size of the screw holes (6) on the surface of the second mounting plate (5) is smaller than the size of the screw holes (6) on the surface of the first mounting plate (4).

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