CN211550081U - Pump body with water-cooling structure - Google Patents

Pump body with water-cooling structure Download PDF

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Publication number
CN211550081U
CN211550081U CN201922220287.XU CN201922220287U CN211550081U CN 211550081 U CN211550081 U CN 211550081U CN 201922220287 U CN201922220287 U CN 201922220287U CN 211550081 U CN211550081 U CN 211550081U
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China
Prior art keywords
cooling
pump
hollow
water
disc
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Active
Application number
CN201922220287.XU
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Chinese (zh)
Inventor
周茜茜
华丽佳
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Suzhou Donggeng Pump Co ltd
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Suzhou Donggeng Pump Co ltd
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Priority to CN201922220287.XU priority Critical patent/CN211550081U/en
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Abstract

The utility model relates to a pump body with a water cooling structure, which comprises a pump body, a pump shaft and an impeller, wherein the pump body is provided with a bearing box and a sealing component; the water cooling mechanism comprises a hollow cooling disc, a through hole is formed in the hollow cooling disc, the inner diameter of the through hole is larger than the outer diameter of the pump shaft, the through hole and the pump shaft are arranged concentrically, and cooling liquid is filled in the hollow cooling disc. Pumping cooling liquid into the hollow cooling disc from the liquid inlet, flowing out of the liquid outlet along with the cooling liquid after running for a circle in the hollow cooling disc, and transferring heat to the hollow cooling disc after a high-temperature medium in the bearing box is contacted with the hollow cooling disc in the running process and taking away the heat by the cooling liquid to realize cooling of the bearing box; the hollow cooling disc is provided with the second through holes and the cooling fins, so that the contact area of the hollow cooling disc and a high-temperature medium is increased, and the cooling effect is improved.

Description

Pump body with water-cooling structure
Technical Field
The utility model relates to a pump body, in particular to pump body with water-cooling structure.
Background
The chemical centrifugal pump is mainly used in the circulating conveying occasions of high-temperature media, such as high-temperature heat conduction oil, and the temperature of the high-temperature media can reach about 350 ℃, so when the chemical centrifugal pump works, the temperature of the high-temperature media can be transmitted into the bearing box by the pump shaft under the heat transfer action, the safe operation of the bearing is influenced, the bearing with better quality can work under the oil temperature of 110 ℃, the safe operation of the bearing is directly influenced when the temperature exceeds the temperature, and therefore, under the working condition of the high-temperature media, how to keep the temperature of lubricating oil constant in an appropriate range is of great importance to the safe operation of the bearing.
In the structure disclosed in the above patent, a water cooling assembly is mainly arranged at a mounting window below a pump shaft and a bearing box, and the water cooling assembly mainly comprises a cooling U-shaped pipe and matching devices such as a water inlet, a water outlet, a mounting hole and the like; the heat transmitted to the bearing box by the high-temperature medium along the pump shaft is taken away by utilizing the water-cooling circulation heat dissipation of the water-cooling assembly, so that the bearing box can work in the environment as low as possible.
According to a heat formula Q which is cm delta t, Q represents the absorbed or released heat, C is the specific heat capacity of cooling water, m is mass, delta t is temperature variation, and according to the formula, although the cooling U-shaped pipe can take away a part of heat, the taken away heat value is low, and the cooling water flows in the cooling U-shaped pipe; in addition, the high-temperature medium carrying heat is suddenly cooled after encountering the U-shaped pipe, part of atomized particles in the high-temperature medium are liquefied and adhered to the cooling pipe, other solid small particles in the high-temperature medium can be adhered to the cooling pipe, a film is formed on the surface of the cooling U-shaped pipe after a long time, and the cooling effect of the cooling U-shaped pipe is reduced again.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pump body with water-cooling structure.
The above technical purpose of the present invention can be achieved by the following technical solutions: a pump body with a water cooling structure comprises a pump body, a pump shaft and an impeller, wherein a bearing box and a sealing assembly are arranged on the pump body, the pump shaft penetrates through the sealing assembly and the bearing box, a bearing is arranged between the pump shaft and the bearing box, an installation window corresponding to the bearing box is arranged on the pump body, and a water cooling mechanism is arranged at the installation window;
the water-cooling mechanism comprises a hollow cooling disc, a through hole penetrating through the thickness of the hollow cooling disc is formed in the hollow cooling disc, the inner diameter of the through hole is larger than the outer diameter of the pump shaft, the through hole and the pump shaft are concentrically arranged, and cooling liquid is filled in the hollow cooling disc.
Preferably, the hollow cooling disc is in a cone cylinder shape, and the opening diameter length of one end, facing the impeller, of the hollow cooling disc is larger than the diameter length of the through hole.
Preferably, the mounting window is provided with a liquid inlet and a liquid outlet which are communicated with the interior of the hollow cooling disc.
Preferably, the cooling liquid adopts ice crystal particles.
Preferably, the surface of the hollow cooling disc is provided with a nano hydrophobic layer.
Preferably, the hollow cooling disc is provided with a plurality of second through holes penetrating through the thickness of the hollow cooling disc, and the second through holes are in a conical cylinder shape.
Preferably, the hollow cooling disc is provided with a plurality of cooling fins extending from positions avoiding the through holes and the second through holes.
Preferably, the cross-sectional shape of the cooling fin is a semicircular ring or a triangle.
To sum up, the utility model discloses following beneficial effect has:
when the pump works, a large amount of heat is generated, the high-temperature medium transfers the heat to the bearing box along the pump shaft, and the water cooling mechanism arranged on the bearing box cools the bearing box; pumping cooling liquid, water, ice crystal particles or a mixture of water and ice crystal particles into the hollow cooling disc from the liquid inlet, and flowing out of the liquid outlet after the cooling liquid runs for a circle in the hollow cooling disc; in addition, the hollow cooling disc is provided with a second through hole and a cooling fin, and both the second through hole and the cooling fin can increase the contact area of the hollow cooling disc and a high-temperature medium and increase the cooling effect; moreover, the through hole and the second through hole are both cylindrical, that is, one end of each of the two ends of the opening is large, and the other end of each of the two ends of the opening is small, when a high-temperature medium (when the high-temperature medium is gas) enters from the end with the large opening and then exits from the other end, the temperature is reduced to some extent according to an ideal gas state equation (PV ═ NRT), and therefore the temperature is reduced to a certain extent, and the pump shaft is ensured to work at a low temperature.
Drawings
FIG. 1 is a sectional view of the entire structure in the embodiment;
FIG. 2 is a sectional view of a part of the structure in the embodiment;
FIG. 3 is a schematic structural view of a part of an embodiment;
FIG. 4 is a sectional view of the structure of the hollow cooling disk in the embodiment.
In the figure, 11, the pump body; 12. a pump shaft; 13. an impeller; 14. a bearing housing; 15. a seal assembly; 16. a bearing; 2. installing a window; 31. a hollow cooling pan; 311. a second through hole; 32. a through hole; 33. a liquid inlet; 34. a liquid outlet; 35. cooling fins; 4. a nano hydrophobic layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Example (b):
a pump body with a water cooling structure is shown in figure 1 and mainly comprises a pump body 11, a pump shaft 12 and an impeller 13, wherein a bearing box 14 and a sealing assembly 15 are arranged on the pump body 1, the pump shaft 2 penetrates through the sealing assembly 15 and the bearing box 14, and a bearing 16 is arranged between the pump shaft 12 and the bearing box 14.
As shown in fig. 1 and 2, the pump body 1 and the mounting window 2 corresponding to the bearing housing 14 are provided with a water cooling mechanism at the mounting window 2, the water cooling mechanism includes a hollow cooling disc 31, the hollow cooling disc 31 is provided with a through hole 32 penetrating through the thickness of the hollow cooling disc, the pump shaft 12 concentrically penetrates through the through hole 32, and the pump shaft 12 is not in contact with the through hole 32, i.e., the inner diameter of the through hole 32 is greater than the outer diameter of the pump shaft 12.
As shown in fig. 2, the hollow cooling plate 31 is hollow inside and filled with a cooling liquid therein; the hollow cooling disc 31 extends to be connected with the mounting window 2 at a position close to the mounting window 2; the hollow cooling plate 31 is further provided with a liquid inlet 33 and a liquid outlet 34, both of which are communicated with the hollow cooling plate 31, and the liquid inlet 33 and the liquid outlet 34 are used for replacing the cooling liquid in the hollow cooling plate 31.
As shown in FIG. 2, the cooling liquid can be brine, or ice crystal particles or a mixture of ice crystal particles and water, wherein the ice crystal particles have excellent heat absorption capacity and stable properties.
As shown in fig. 2, the hollow cooling disk 31 has a conical shape as shown in the figure, i.e., the diameter of the opening toward one end of the impeller 13 is longer than the diameter of the through hole 32.
As shown in fig. 1, the hollow cooling plate 31 is provided with a plurality of second through holes 311 penetrating the thickness thereof, and the second through holes 311 are in a tapered cylindrical shape and open in the same direction as the through holes 32.
As shown in fig. 3, a plurality of cooling fins 35 are extended from the hollow cooling plate 31 at positions avoiding the through holes 32 and the second through holes 311, and the cross-sectional shape of the cooling fins 35 is a semicircular ring or a triangular ring, which is adopted in the drawing of this embodiment.
As shown in fig. 4, the surface of the hollow cooling plate 31 is provided with the nano-hydrophobic layer 4.
The working principle is as follows:
when the pump works, a large amount of heat is generated, the high-temperature medium transfers the heat to the bearing box 14 along the pump shaft 12, and the temperature of the bearing box 14 is reduced through a water cooling mechanism arranged on the bearing box; pumping cooling liquid, water, ice crystal particles or a mixture of water and ice crystal particles into the hollow cooling disc 31 from the liquid inlet 33, and flowing out from the liquid outlet 34 after the cooling liquid runs for a circle in the hollow cooling disc 31, wherein in the running process, a part of heat of a high-temperature medium in the bearing box 14 is transferred to the hollow cooling disc 31 after contacting with the hollow cooling disc 31 and is taken away by the cooling liquid, so that the cooling of the bearing box is realized; in addition, the hollow cooling disc 31 is provided with the second through holes 311 and the cooling fins 35, both of which increase the contact area between the hollow cooling disc 31 and the high-temperature medium and increase the cooling effect; moreover, the through hole 13 and the second through hole 311 are both cylindrical, that is, one end of each of the two ends of the opening is large, and the other end of the opening is small, so that when a high-temperature medium (when the high-temperature medium is a gas) enters from the end with the large opening and then exits from the other end, the temperature is reduced to some extent according to an ideal gas state equation (PV ═ NRT), and the pump shaft 12 is ensured to operate at a low temperature.

Claims (8)

1. The utility model provides a pump body with water-cooling structure, includes the pump body (11), pump shaft (12) and impeller (13), be provided with bearing box (14) and seal assembly (15) on the pump body (1), pump shaft (12) are worn to establish in seal assembly (15) and bearing box (14), be provided with bearing (16), its characterized in that between pump shaft (12) and bearing box (14): the pump body (1) and the mounting window (2) corresponding to the bearing box (14), and a water cooling mechanism is arranged at the mounting window (2);
the water-cooling mechanism includes hollow cooling plate (31), be provided with through-hole (32) and the internal diameter that run through its thickness on hollow cooling plate (31) and be greater than pump shaft (12) external diameter, through-hole (32) and pump shaft (12) set up with one heart, it has the coolant liquid to fill in hollow cooling plate (31).
2. The pump body having a water-cooling structure according to claim 1, wherein: the hollow cooling disc (31) is in a cone-shaped cylinder shape, and the diameter length of an opening at one end, facing the impeller (13), of the hollow cooling disc (31) is larger than that of the through hole (32).
3. The pump body having a water-cooling structure according to claim 2, wherein: the mounting window (2) is provided with a liquid inlet (33) and a liquid outlet (34) which are communicated with the interior of the hollow cooling disc (31).
4. The pump body having a water-cooling structure according to claim 3, wherein: the cooling liquid adopts ice crystal particles.
5. The pump body having a water-cooling structure according to claim 4, wherein: and a nano hydrophobic layer (4) is arranged on the surface of the hollow cooling disc (31).
6. The pump body having a water-cooling structure according to claim 5, wherein: the hollow cooling disc (31) is provided with a plurality of second through holes (311) penetrating through the thickness of the hollow cooling disc, and the second through holes (311) are in a cone cylinder shape.
7. The pump body having a water-cooling structure according to claim 6, wherein: the hollow cooling disc (31) is provided with a plurality of cooling fins (35) in an extending mode at positions avoiding the through hole (32) and the second through hole (311).
8. The pump body having a water-cooling structure according to claim 7, wherein: the cross section of the cooling fin (35) is in the shape of a semicircular ring or a triangle.
CN201922220287.XU 2019-12-12 2019-12-12 Pump body with water-cooling structure Active CN211550081U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922220287.XU CN211550081U (en) 2019-12-12 2019-12-12 Pump body with water-cooling structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922220287.XU CN211550081U (en) 2019-12-12 2019-12-12 Pump body with water-cooling structure

Publications (1)

Publication Number Publication Date
CN211550081U true CN211550081U (en) 2020-09-22

Family

ID=72505647

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922220287.XU Active CN211550081U (en) 2019-12-12 2019-12-12 Pump body with water-cooling structure

Country Status (1)

Country Link
CN (1) CN211550081U (en)

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