Process pump with high sealing performance and heat dissipation structure

Abstract

The utility model discloses a process pump with high sealing performance and a heat dissipation structure, and particularly relates to the field of process pumps, the process pump comprises a base, a driving motor and a pump body, the driving motor and the pump body are both installed on the upper end face of the base, the pump body is installed at the output end of the driving motor, the pump body comprises a shell and a water inlet, and the water inlet is communicated with the shell. The shell is installed on one side of the driving motor, a water inlet is formed in the side end face of the shell, and a water outlet is formed in the upper end face of the shell. An original framework oil seal is replaced with a magnetic oil seal, so that the problems of oil leakage caused by aging of the oil seal and poor heat dissipation caused by too high temperature of the bearing due to the framework oil seal are solved, meanwhile, heat dissipation is performed on a bearing box body by utilizing a heat conduction copper pipe and heat dissipation fins in a heat dissipation frame, and then heat dissipation is performed on oil and a bearing ring body. Therefore, heat of bearings used by the pump body and heat of the pump body are dissipated, poor heat dissipation caused by too high temperature is avoided, and the service life of the oil seal is prolonged through the magnetic oil seal.

Description

Technical Field

[0001] The utility model relates to the field of process pumps, and more specifically, to a process pump with high sealing performance and a heat dissipation structure. Background Art

[0002] Process pumps are a general term for various pumps used in chemical production processes. They come in many varieties, and based on their operating principles, they can be categorized as vane pumps (such as centrifugal pumps, axial flow pumps, mixed flow pumps, partial flow pumps, and vortex pumps), positive displacement pumps (such as reciprocating pumps, including plunger pumps, piston pumps, and diaphragm pumps), rotary pumps, and other types. Process pumps are widely used in industries such as chemical, petrochemical, natural gas processing, and fertilizer production to transport various chemical raw materials, intermediates, and products.

[0003] For example, application number CN201922174275.8 discloses a new process pump, which completely seals the medium in the pump chamber, adapts to working conditions, is not easy to be damaged, and improves the safety and service life of the pump. The sealing effect of the sealing box is good, the medium will not flow into the sealing box body, and leakage will not occur. The medium particles will not damage the spring in the spring seat due to excessive flow, and no external flushing is required, which greatly saves water resources and discharges some unnecessary sewage discharge; the above device solves the problem that the pump structure is a double-end face structure with certain disadvantages, which leads to a short life of the pump's mechanical seal, high cost, cumbersome maintenance, and the need for an external water source to cool the pump's mechanical seal. However, when the above device is in operation, a skeleton oil seal is used to seal the pump body, and the skeleton oil seal is prone to aging, which is prone to oil leakage and the skeleton oil seal causes the bearing temperature to be too high and the heat dissipation is poor;

[0004] Therefore, in order to solve the above problems, a process pump with high sealing performance and heat dissipation structure is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a process pump with high sealing performance and heat dissipation structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a process pump with high sealing and heat dissipation structure, comprising a base, a drive motor and a pump body, the drive motor and the pump body are both mounted on the upper end face of the base, and the pump body is mounted on the output end of the drive motor, the pump body comprises a casing and a water inlet, the casing is mounted on one side of the drive motor, and the side end face of the casing is provided with a water inlet, the upper end face of the casing is provided with a water outlet, the inner cavity of the casing is provided with an impeller, and the impeller is fixedly mounted on the outer diameter surface of the pump shaft, a front cover plate is provided on one side of the impeller, the pump shaft is transversely penetrated and installed at the center of the side end face of the bearing box, and a bearing ring is provided on the contact surface between the bearing box and the pump shaft, and a magnetic oil seal is provided on the side of the bearing ring away from the inner cavity of the bearing box, the upper end face of the bearing box is penetrated by an oil inlet, and the outer surface of the bearing box is provided with a heat dissipation frame.

[0007] Preferably, a groove is dug on the side of the bearing housing that contacts the magnetic oil seal, and the bearing housing is buckled and connected to the magnetic oil seal through the groove and a retaining ring. The magnetic oil seal consists of a dynamic ring seat and a static ring seat. A dynamic ring is provided on the inner side of the groove dug on the inner side of the dynamic ring seat, a square dynamic ring is provided on the inner side of the groove dug on the outer side of the dynamic ring seat, a static ring is provided on the inner side of the groove dug on the outer side of the static ring seat, and a compensation ring is provided between the dynamic ring seat and the static ring seat. A permanent magnet is provided on one side of the static ring seat.

[0008] Preferably, the heat dissipation frame includes a heat-conducting copper tube and heat-dissipating fins. The heat-conducting copper tube is installed inside the bearing housing, and the heat-conducting copper tube is installed around the inside of the bearing housing, and both ends of the heat-conducting copper tube are connected to the heat-dissipating fins. The inner cavity of the heat-conducting copper tube and the heat-dissipating fins is provided with coolant.

[0009] Preferably, the water inlet forms a connecting structure with the water outlet through the inner cavity of the shell, the drive motor and the pump shaft form a shaft transmission structure, the oil inlet and the bearing housing form a connecting structure, and the pump shaft forms a rotating structure that rotates around the center of the bearing ring body through the bearing ring body and the bearing housing.

[0010] Preferably, the dynamic ring seat and the static ring seat are both irregularly shaped, and the contact surfaces between the dynamic ring seat and the static ring seat, the pump shaft and the bearing housing are respectively installed with a compensation ring, a dynamic ring and a square dynamic ring, and sealing gaskets are provided on both sides of the magnetic oil seal.

[0011] Preferably, the heat-conducting copper tube is arranged in a plurality of circles around the interior of the bearing housing, and the heat-conducting copper tube and the heat dissipation fins form a communicating connection structure.

[0012] The technical effects and advantages of this utility model are:

[0013] Compared with the existing technology, this process pump with high sealing and heat dissipation structure replaces the original skeleton oil seal with a magnetic oil seal during use, thereby solving the problems of oil leakage caused by aging of the oil seal and the skeleton oil seal causing excessive bearing temperature and poor heat dissipation. At the same time, the heat-conducting copper tubes and heat dissipation fins in the heat dissipation frame are used to dissipate heat from the bearing housing, and then dissipate heat from the oil and bearing ring, thereby dissipating heat from the bearings used in the pump body and the pump body itself, thereby avoiding poor heat dissipation caused by excessive temperature, and using the magnetic oil seal to increase the service life of the oil seal.

[0014] Compared with the prior art, this process pump with high sealing and heat dissipation structure adopts a magnetic oil seal in the oil seal of the pump body during use, and the skeleton oil seal in the prior art is replaced with a magnetic oil seal. The magnetic oil seal uses the advantages of magnetism, mechanical seal and full floating sealing surface structure. At the same time, the overall structure of the magnetic oil seal is simple, the installation is convenient, the power consumption is low, and the joint surface of the dynamic and static rings always maintains close contact. Even under large shaft runout, effective sealing can be achieved, thereby avoiding oil leakage caused by aging of the oil seal and the problem of excessive bearing temperature and poor heat dissipation caused by the skeleton oil seal. At the same time, a heat-conducting copper pipe is arranged around the interior of the bearing housing, and the heat-conducting copper pipe is connected to the heat dissipation fins. The inner cavity of the heat-conducting copper pipe and the heat dissipation fins is provided with coolant. The above structure facilitates heat dissipation of the bearing housing, and further facilitates heat dissipation of the oil stored in the bearing housing, the bearing ring body and the magnetic oil seal body, which is beneficial to heat dissipation and cooling of the pump body itself. The use of magnetic oil seal can also extend the service life of the oil seal, thereby increasing the service life of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front cross-section structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the front cross-section structure of the pump body of the utility model.

[0017] Figure 3 This is a schematic diagram of the front cross-section structure of the magnetic oil seal of the utility model.

[0018] Figure 4 This is a schematic diagram of the front cross-section structure of the heat dissipation rack of the present invention.

[0019] Figure 5 This is a schematic diagram of the side sectional structure of the heat dissipation rack of the present utility model.

[0020] The accompanying drawings are marked as follows: 1. base; 2. drive motor; 3. pump body; 31. casing; 32. water inlet; 33. water outlet; 34. impeller; 35. pump shaft; 36. front cover; 37. bearing housing; 38. bearing ring body; 39. magnetic oil seal; 391. retaining ring; 3901. dynamic ring seat; 3902. static ring seat; 3903. dynamic ring; 3904. square dynamic ring; 3905. static ring; 3906. compensation ring; 3907. permanent magnet; 310. oil inlet; 311. heat sink; 3111. thermal copper tube; 3112. heat sink fins. DETAILED DESCRIPTION

[0021] 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. Example

[0022] As attached Figures 1 to 4 The process pump shown has a high sealing and heat dissipation structure, including a base 1, a drive motor 2 and a pump body 3. The drive motor 2 and the pump body 3 are both installed on the upper end surface of the base 1, and the pump body 3 is installed on the output end of the drive motor 2. The pump body 3 includes a shell 31 and a water inlet 32. The shell 31 is installed on one side of the drive motor 2, and the side end surface of the shell 31 is provided with a water inlet 32, the upper end surface of the shell 31 is provided with a water outlet 33, and the inner cavity of the shell 31 is provided with an impeller 34, and the impeller The impeller 34 is fixedly mounted on the outer diameter surface of the pump shaft 35, a front cover plate 36 is provided on one side of the impeller 34, the pump shaft 35 is transversely penetrated and installed at the center of the side end surface of the bearing box 37, and a bearing ring 38 is provided on the contact surface between the bearing box 37 and the pump shaft 35, and a magnetic oil seal 39 is provided on the side of the bearing ring 38 away from the inner cavity of the bearing box 37, an oil inlet 310 is penetrated on the upper end surface of the bearing box 37, and a heat sink 311 is provided on the outer surface of the bearing box 37.

[0023] A groove is dug on the side of the bearing housing 37 that contacts the magnetic oil seal 39, and the bearing housing 37 is snap-fitted with the magnetic oil seal 39 through the groove and the retaining ring 391. The magnetic oil seal 39 consists of a dynamic ring seat 3901 and a static ring seat 3902. A dynamic ring 3903 is provided on the inner side of the groove dug on the inner side of the dynamic ring seat 3901, a square dynamic ring 3904 is provided on the inner side of the groove dug on the outer side of the dynamic ring seat 3901, a static ring 3905 is provided on the inner side of the groove dug on the outer side of the static ring seat 3902, and a compensation ring 3906 is provided between the dynamic ring seat 3901 and the static ring seat 3902, and a permanent magnet 3907 is provided on one side of the static ring seat 3902.

[0024] The heat dissipation frame 311 includes a heat-conducting copper tube 3111 and heat-dissipating fins 3112. The heat-conducting copper tube 3111 is installed inside the bearing housing 37, and the heat-conducting copper tube 3111 is installed around the inside of the bearing housing 37. The two ends of the heat-conducting copper tube 3111 are connected to the heat-dissipating fins 3112, and the inner cavity of the heat-conducting copper tube 3111 and the heat-dissipating fins 3112 is provided with cooling liquid.

[0025] The oil seal in the pump body 3 adopts the magnetic oil seal 39, and the skeleton oil seal in the prior art is replaced with the magnetic oil seal 39. The magnetic oil seal 39 uses the advantages of magnetism, mechanical seal and full floating sealing surface structure. At the same time, the magnetic oil seal 39 has a simple overall structure, is easy to install, consumes less power, and the dynamic and static ring joint surfaces always maintain close contact. Even under large shaft runout, it can achieve effective sealing, avoid oil leakage caused by aging of the oil seal and the problem of excessive bearing temperature and poor heat dissipation caused by the skeleton oil seal. At the same time, the bearing A heat-conducting copper tube 3111 is arranged around the interior of the box body 37. At the same time, the heat-conducting copper tube 3111 is connected to the heat dissipation fins 3112, and the inner cavities of the heat-conducting copper tube 3111 and the heat dissipation fins 3112 are provided with coolant, which is convenient for dissipating the heat of the bearing box body 37, and is convenient for dissipating the heat of the oil stored in the bearing box body 37, the bearing ring body 38 and the magnetic oil seal 39 body, which is beneficial to dissipating the heat and cooling of the pump body 3 itself, and the use of the magnetic oil seal 39 extends the service life of the oil seal and increases the service life of the pump body 3. Example

[0026] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 5 As shown, see the following description for details:

[0027] As a preferred embodiment, the water inlet 32 ​​forms a connecting structure with the water outlet 33 through the inner cavity of the shell 31, the drive motor 2 and the pump shaft 35 form a shaft transmission structure, the oil inlet 310 and the bearing box 37 form a connecting structure, and the pump shaft 35 forms a rotating structure that rotates around the center of the bearing ring 38 with the bearing box 37 through the bearing ring 38.

[0028] As a preferred embodiment, the dynamic ring seat 3901 and the static ring seat 3902 are both irregularly shaped, and the contact surfaces of the dynamic ring seat 3901 and the static ring seat 3902, the pump shaft 35 and the bearing housing 37 are respectively installed with a compensation ring 3906, a dynamic ring 3903 and a square dynamic ring 3904, and sealing gaskets are provided on both sides of the magnetic oil seal 39.

[0029] As a preferred embodiment, the heat-conducting copper tube 3111 is arranged in several circles around the interior of the bearing housing 37 , and the heat-conducting copper tube 3111 and the heat dissipating fins 3112 form a communicating connection structure.

[0030] The working process of the present utility model is as follows: the oil seal in the pump body 3 adopts the form of a magnetic oil seal 39, and the skeleton oil seal in the prior art is replaced with a magnetic oil seal 39, and the dynamic and static ring joint surfaces in the magnetic oil seal 39 always maintain close contact. Even under large shaft runout, effective sealing can be achieved, avoiding oil leakage caused by aging of the oil seal and the problem of excessive bearing temperature and poor heat dissipation caused by the skeleton oil seal. At the same time, a heat-conducting copper tube 3111 is arranged around the interior of the bearing box 37, and the heat-conducting copper tube 3111 is connected to the heat dissipation fins 3112, and the inner cavity of the heat-conducting copper tube 3111 and the heat dissipation fins 3112 is provided with coolant to dissipate heat to the bearing box 37, and further dissipate heat to the oil stored in the bearing box 37, the bearing ring body 38 and the magnetic oil seal 39 body, and the use of the magnetic oil seal 39 extends the service life of the oil seal and increases the service life of the pump body 3.

Claims

1. A process pump with high sealing performance and heat dissipation structure, comprising a base (1), a drive motor (2) and a pump body (3), characterized in that: The driving motor (2) and the pump body (3) are both mounted on the upper end surface of the base (1), and the pump body (3) is mounted on the output end of the driving motor (2). The pump body (3) comprises a housing (31) and a water inlet (32). The housing (31) is mounted on one side of the driving motor (2), and the side end surface of the housing (31) is provided with the water inlet (32). The upper end surface of the housing (31) is provided with a water outlet (33). The inner cavity of the housing (31) is provided with an impeller (34), and the impeller (34) is fixedly mounted on the pump shaft (35). The outer diameter surface of the impeller (34) is provided with a front cover plate (36) on one side, the pump shaft (35) is installed transversely through the center of the side end surface of the bearing housing (37), and the contact surface between the bearing housing (37) and the pump shaft (35) is provided with a bearing ring body (38), and the side of the bearing ring body (38) away from the inner cavity of the bearing housing (37) is provided with a magnetic oil seal (39), the upper end surface of the bearing housing (37) is provided with an oil inlet (310), and the outer surface of the bearing housing (37) is provided with a heat dissipation frame (311).

2. A process pump with high sealing performance and heat dissipation structure according to claim 1, characterized in that: A groove is dug on one side of the bearing housing (37) that contacts the magnetic oil seal (39), and the bearing housing (37) is buckled and connected to the magnetic oil seal (39) through the groove and a retaining ring (391). The magnetic oil seal (39) consists of a dynamic ring seat (3901) and a static ring seat (3902). A dynamic ring (3903) is provided on the inner side of the groove dug on the inner side of the dynamic ring seat (3901), a square dynamic ring (3904) is provided on the inner side of the groove dug on the outer side of the dynamic ring seat (3901), a static ring (3905) is provided on the inner side of the groove dug on the outer side of the static ring seat (3902), and a compensation ring (3906) is provided between the dynamic ring seat (3901) and the static ring seat (3902). A permanent magnet (3907) is provided on one side of the static ring seat (3902).

3. The process pump with high sealing performance and heat dissipation structure according to claim 1, characterized in that: The heat dissipation frame (311) comprises a heat-conducting copper tube (3111) and heat-dissipating fins (3112); the heat-conducting copper tube (3111) is installed inside the bearing housing (37), and the heat-conducting copper tube (3111) is installed around the inside of the bearing housing (37); and both ends of the heat-conducting copper tube (3111) are in communication with the heat-dissipating fins (3112); and the inner cavities of the heat-conducting copper tube (3111) and the heat-dissipating fins (3112) are provided with cooling liquid.

4. The process pump with high sealing performance and heat dissipation structure according to claim 1, characterized in that: The water inlet (32) forms a communicating connection structure with the water outlet (33) through the inner cavity of the housing (31); the drive motor (2) and the pump shaft (35) form a shaft transmission structure; the oil inlet (310) and the bearing housing (37) form a communicating connection structure; and the pump shaft (35) forms a rotating structure rotating around the center of the bearing ring (38) through the bearing ring (38) and the bearing housing (37).

5. The process pump with high sealing performance and heat dissipation structure according to claim 2, characterized in that: The dynamic ring seat (3901) and the static ring seat (3902) are both irregularly shaped. The contact surfaces between the dynamic ring seat (3901) and the static ring seat (3902), the pump shaft (35) and the bearing housing (37) are respectively installed with a compensation ring (3906), a dynamic ring (3903) and a square dynamic ring (3904). Sealing gaskets are provided on both sides of the magnetic oil seal (39).

6. The process pump with high sealing performance and heat dissipation structure according to claim 3, characterized in that: The heat-conducting copper tube (3111) is arranged in several circles around the interior of the bearing housing (37), and the heat-conducting copper tube (3111) and the heat dissipation fins (3112) form a communicating connection structure.

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