CN-224228925-U - Vertical hot oil pump

CN224228925UCN 224228925 UCN224228925 UCN 224228925UCN-224228925-U

Abstract

The utility model provides a vertical hot oil pump, which belongs to the technical field of pumps and comprises a pump body, a pump cover, a shaft body and an impeller, wherein a bearing seat is arranged on the pump cover, an upper bearing body and a lower bearing body are arranged between the shaft body and the bearing seat, a bearing gland is arranged on the bearing seat, an upper cooling cavity is formed at the upper part of the bearing gland and the bearing seat outside the shaft body, the upper bearing body is positioned in the upper cooling cavity, a lower cooling cavity is formed at the lower part of the pump cover and the bearing seat outside the shaft body, the lower bearing body is positioned in the lower cooling cavity, an upper interface and an upper plug which are communicated with the upper cooling cavity are arranged on the bearing gland, and a lower interface and a lower plug which are communicated with the lower cooling cavity are arranged on the bearing seat.

Inventors

JIN JUNQIANG
ZHOU LIFANG
Pan Ligen
LIN LINBIN
ZHANG XUE
JIN JINYUAN
YANG LINZE
CHEN ZHANGHENG
SUN PENGCHENG
LIAO WENBIN
CAI LU
CHEN YUEHE

Assignees

浙江永球科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250521

Claims (10)

1. The utility model provides a vertical hot oil pump, its characterized in that, includes the pump body, pump cover, axis body and impeller, pump body and pump cover are formed with the pump chamber, the impeller rotates and sets up in the pump chamber, be provided with the bearing frame on the pump cover, axis body one end and motor are connected, and the other end passes the bearing frame and is connected with pump cover and impeller, be provided with upper bearing body and lower bearing body between axis body and the bearing frame, be provided with bearing cover on the bearing frame, bearing cover and bearing frame upper portion are formed with the upper cooling chamber outside the axis body, upper bearing body is located the upper cooling chamber, pump cover and bearing frame lower part are formed with the lower cooling chamber outside the axis body, the lower bearing body is located the lower cooling chamber, last interface and the last end cap that is provided with of upper cooling chamber intercommunication of bearing cover, be provided with the lower interface and the end cap that is provided with the lower cooling chamber intercommunication on the bearing frame.
2. The vertical hot oil pump according to claim 1, further comprising a motor fan housing, wherein the shaft body is arranged above the bearing cover, the motor fan blade rotates synchronously with the shaft body and is arranged in the motor fan housing, and an air outlet is formed in the lower end of the motor fan housing.
3. The vertical hot oil pump according to claim 1, wherein a sealing cavity is arranged at the lower end of the upper cooling cavity on the bearing seat, a sealing structure for sealing the lower end of the upper cooling cavity is arranged in the sealing cavity, the sealing structure comprises an upper power seal, a power seal retainer ring and a lower power seal, and the sealing structure is fixed in the sealing cavity through a first inner clamping spring.
4. The vertical hot oil pump according to claim 1, wherein the bearing cover is provided with a first pressing ring part facing the upper bearing body, the first pressing ring part extends into the upper end of the bearing seat and is abutted against the upper bearing body, and a first sealing flat gasket is arranged between the bearing cover and the upper end of the bearing seat.
5. The vertical hot oil pump according to claim 1, wherein a second pressing ring portion is arranged at the upper end of the pump cover, the second pressing ring portion stretches into the lower end of the bearing seat and is abutted against the lower bearing body, and a second sealing flat gasket is arranged between the pump cover and the lower end of the bearing seat.
6. The vertical hot oil pump according to claim 1, wherein a sealing groove is arranged between one end of the pump cover, which is close to the pump cavity, and the shaft body, a plurality of oil seals are arranged in the sealing groove and are fixed in the sealing groove through a second inner clamping spring, and the lower cooling cavity extends downwards to the sealing groove and forms a seal through the oil seals.
7. The vertical hot oil pump according to claim 1, wherein the pump cover is provided with a connecting frame, and the bearing seat is provided with a fixing plate and is connected with the connecting frame through the fixing plate.
8. The vertical hot oil pump according to claim 1, wherein the pump body is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are positioned on the same axis and have the same caliber.
9. The vertical hot oil pump according to claim 8, wherein the pump body is provided with a passage portion for communicating the medium inlet and the pump chamber, the bottom of the impeller is provided with a positioning ring portion, and the positioning ring portion and the passage portion are coaxially arranged and have a gap.
10. A vertical hot oil pump according to claim 3, wherein the lower cooling chamber extends upwardly to and forms a seal with the seal structure.

Description

Vertical hot oil pump Technical Field The utility model relates to the technical field of pumps, in particular to a vertical hot oil pump. Background The hot oil pump is a mechanical device specially used for conveying high-temperature oil products, and is widely applied to the fields of petrochemical industry, metallurgy, food processing, thermal energy systems and the like. Its primary function is to transfer hot oil from a storage tank or hot oil boiler to a heat exchanger, reactor or other equipment to ensure proper operation of the system. The hot oil pump is generally made of high-temperature resistant materials, and has good sealing performance and corrosion resistance so as to cope with high-temperature, high-pressure and chemical corrosion working environments. According to different working requirements, the hot oil pump can be divided into a centrifugal pump, a gear pump and other types, and has the characteristics of high efficiency, stability and durability. The heat is easy to accumulate in the working process of the traditional hot oil pump, so that the temperature of parts such as a bearing is increased, and the service life of the hot oil pump is influenced. Disclosure of utility model The utility model aims to overcome the defects and the shortcomings of the prior art and provides a vertical hot oil pump. The vertical hot oil pump comprises a pump body, a pump cover, a shaft body and an impeller, wherein the pump body and the pump cover form a pump cavity, the impeller is rotatably arranged in the pump cavity, a bearing seat is arranged on the pump cover, one end of the shaft body is connected with a motor, the other end of the shaft body penetrates through the bearing seat to be connected with the pump cover and the impeller, an upper bearing body and a lower bearing body are arranged between the shaft body and the bearing seat, a bearing cover is arranged on the bearing seat, an upper cooling cavity is formed outside the shaft body at the upper part of the bearing cover and the bearing seat, the upper bearing body is positioned in the upper cooling cavity, a lower cooling cavity is formed outside the shaft body at the lower part of the pump cover and the bearing seat, an upper interface and an upper plug which are communicated with the upper cooling cavity are arranged on the bearing cover, and a lower interface and a lower plug which are communicated with the lower cooling cavity are arranged on the bearing seat. In some embodiments, the motor fan cover is further arranged above the bearing pressure cover, the motor fan blade and the shaft body synchronously rotate and are positioned in the motor fan cover, and an air outlet is formed in the lower end of the motor fan cover. In some embodiments, a seal cavity is arranged at the lower end of the upper cooling cavity on the bearing seat, a seal structure for sealing the lower end of the upper cooling cavity is arranged in the seal cavity, the seal structure comprises an upper power seal, a power seal retainer ring and a lower power seal, and the seal structure is fixed in the seal cavity through a first inner clamping spring. In some embodiments, the bearing cover is provided with a first pressure-resisting ring part towards the upper bearing body, the first pressure-resisting ring part stretches into the upper end of the bearing seat and is abutted with the upper bearing body, and a first sealing flat gasket is arranged between the bearing cover and the upper end of the bearing seat. In some embodiments, the pump cover upper end is provided with the second and supports the clamping ring portion, the second supports the clamping ring portion and stretches into the bearing frame lower extreme and with the lower bearing body looks butt, be provided with the second and seal the flat pad between pump cover and the bearing frame lower extreme. In some embodiments, a sealing groove is arranged between one end, close to the pump cavity, of the pump cover and the shaft body, a plurality of oil seals are arranged in the sealing groove and are fixed in the sealing groove through a second inner clamping spring, and the lower cooling cavity extends downwards to the sealing groove and forms a seal through the oil seals. In some embodiments, the pump cover is provided with a connecting frame, and the bearing seat is provided with a fixing plate and is connected with the connecting frame through the fixing plate. In some embodiments, the pump body is provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are positioned on the same axis and have the same caliber. In some embodiments, a channel part for communicating the medium inlet and the pump cavity is arranged on the pump body, a positioning ring part is arranged at the bottom of the impeller, and the positioning ring part and the channel part are coaxially arranged and have a gap. In some embodiments, the lower cooling cavity extends up to and forms a seal with