CN210509576U

CN210509576U - High-temperature double-suction double-screw pump

Info

Publication number: CN210509576U
Application number: CN201921380495.XU
Authority: CN
Inventors: 张冠宇; 张艳君; 张伟
Original assignee: Tianjin Junyu Technology Co ltd
Current assignee: Tianjin Junyu Technology Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-12
Anticipated expiration: 2029-08-23

Abstract

The utility model provides a high temperature double entry double screw pump, which comprises a pump body, pump body top is connected with air pressure control device, driving shaft and driven shaft are installed to the inside axial level of the pump body, driving shaft rear end fixed mounting has the driving gear, driven shaft rear end fixed mounting has driven gear, cooling back flow a, cooling inlet an, cooling outlet a, washing liquid inlet an, washing liquid inlet b, cooling back flow b, cooling inlet b, cooling outlet b, liquid outlet, washing liquid export have been seted up on the pump body outer wall. The utility model has the advantages that the damage of high temperature and high pressure to the pump body and the driving and driven shafts during working is effectively weakened, and the service life is prolonged; the complete cooling system can ensure the comprehensive cooling under the high-temperature condition, so that the mechanical seal is in the optimal working state, and gas-liquid compounds can be conveyed under the high-temperature condition.

Description

High-temperature double-suction double-screw pump

Technical Field

The utility model belongs to the twin-screw pump field especially relates to a high temperature double entry twin-screw pump.

Background

Nowadays, screw pumps are widely used for high-temperature transmission media, but have the defects of high maintenance cost, poor reliability and the like, and certain economic loss is caused by the fact that the pumps need to be stopped for maintenance due to problems of the pumps. The pump maintenance condition of the fault body of the high-temperature pump generally exists at present, particularly when gas-liquid compounds are transmitted, the temperature in the pump is high, the air pressure is high, leakage is easy to occur, the pump body, the driving shaft and the driven shaft are lost, the service life is short, and not only is the economic loss caused.

Disclosure of Invention

The utility model aims at solving the problems, the high-temperature double-suction double-screw pump is designed, which comprises a pump body, wherein an air pressure control device is connected above the pump body, a driving shaft and a driven shaft are horizontally arranged in the pump body in the axial direction, a suction cavity is arranged on one side of the middle part of the pump body, a discharge cavity is arranged on the other side of the middle part of the pump body, a sealing cover, a front bearing seat, a mechanical seal, a lining, a rear bearing seat, a gear sleeve and a gear box are sequentially arranged in the pump body along the length direction, a cooling reflux pipe a, a cooling inlet a, a cooling outlet a, a cleaning liquid inlet b, a cooling reflux pipe b, a cooling outlet b, a liquid outlet and a cleaning liquid outlet are arranged on the outer wall of the pump body, liquid enters from a liquid inlet flange and is discharged from the liquid outlet after passing through, the cooling material enters from the cooling inlet a, flows back through the cooling return pipe a for cooling and then is discharged from the cooling outlet a, the cooling material enters from the cooling inlet b, flows back through the cooling return pipe b for cooling and then is discharged from the cooling outlet b, the cleaning liquid enters from the cleaning liquid inlet a and the cleaning liquid inlet b, and is discharged from the cleaning liquid outlet after the cleaning is finished.

The air pressure control device is composed of a shell fixedly connected with the upper end of the pump body, a sensing system located above the suction cavity and arranged inside the shell, and a transmission system located above the sensing system and arranged inside the shell.

The induction system is composed of an induction block a which is positioned above the suction cavity and is arranged in the shell, and an induction block b which is positioned above the discharge cavity and is arranged in the shell.

The transmission system is composed of a fixed shaft which is positioned above the induction system and fixed at the front end of the shell along the length direction of the shell, a fixed block fixedly sleeved on the outer surface of the fixed shaft, a Z-shaped telescopic rod with one end fixedly connected with the fixed block, a telescopic block fixedly connected with the other end of the Z-shaped telescopic rod, and a liquid inlet flange connected with the rear end of the shell through a bolt.

The driving shaft is fixedly provided with a driving gear at the rear end, and the driven shaft is fixedly provided with a driven gear meshed with the driving gear at the rear end.

The driving gear and the driven gear are helical gears.

The middle part of the pump body is an arc-shaped cavity.

The utility model has the advantages and positive effects that the middle part of the pump body is an arc-shaped cavity, which can effectively weaken the damage of high temperature and high pressure to the pump body and the driving and driven shafts during working and prolong the service life; the driving gear and the driven gear are helical gears, so that the scraping amount of the driving shaft and the driven shaft in the axial transverse radial direction is ensured to be within a specified range, and the sealing box body and the mechanical seal can also ensure axial fixation; the complete cooling system can ensure the complete cooling under the condition of high temperature, so that the mechanical seal is in the optimal working state.

Drawings

Fig. 1 is a front view of the structure of the present invention;

fig. 2 is a side view of the structure of the present invention.

In the figure: 1. a pump body; 2. a drive shaft; 3. a driven shaft; 4. a sealing cover; 5. a front bearing cover; 6. mechanical sealing; 7. a bushing; 8. a rear bearing seat; 9. a gear sleeve; 10. a gear case; 11. a cooling return pipe a; 12. a cooling inlet a; 13. a cleaning liquid inlet a; 14. a cooling return pipe b; 15. a cooling inlet b; 16. a liquid outlet; 17. a cooling outlet a; 18. a cleaning liquid inlet b; 19. a cooling outlet b; 20. a cleaning liquid outlet; 21. a suction chamber; 22. a discharge chamber; 23. a pneumatic control device; 24. a housing; 25. an induction block a; 26. an induction block b; 27. a fixed shaft; 28. a fixed block; 29. a Z-shaped telescopic rod; 30. a telescopic block; 31. a liquid inlet flange; 32. a driving gear; 33. a driven gear; 34. an induction system; 35. a transmission system.

Detailed Description

The following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings, as shown in fig. 1 and fig. 2, a high temperature double-suction double screw pump includes a pump body, an air pressure control device is connected to the top of the pump body, the air pressure control device is composed of a housing fixedly connected to the top of the pump body, a sensing system located above the suction cavity and inside the housing, and a transmission system located above the sensing system and inside the housing, the sensing system is composed of a sensing block a located above the suction cavity and inside the housing, and a sensing block b located above the discharge cavity and inside the housing, the transmission system is composed of a fixed shaft located above the sensing system and fixed to the front end of the housing along the length direction of the housing, a fixed block fixedly mounted on the outer surface of the fixed shaft, a Z-shaped telescopic rod fixedly connected to one end of the fixed block, and a, With flexible piece of Z shape telescopic link other end fixed connection, constitute jointly with the income liquid flange that the casing rear end passes through bolted connection, carry the material and get into the suction chamber from going into liquid flange department, when response piece an senses and carries the material and reach a quantitative, the extension of Z shape telescopic link drives flexible piece and seals into the liquid flange, stops the input, and the driving shaft drives the driven shaft motion through initiative, driven gear's cooperation afterwards, will carry the material and carry the chamber by the suction chamber and bring into the discharge chamber after and discharge from the liquid outlet.

A driving shaft and a driven shaft are axially and horizontally arranged in the pump body, a suction cavity is arranged on one side of the middle part of the pump body, a discharge cavity is arranged on the other side of the middle part of the pump body, a sealing cover, a front bearing seat, a mechanical seal, a lining, a rear bearing seat, a gear sleeve and a gear box are sequentially arranged in the pump body along the length direction of the pump body, a cooling backflow pipe a, a cooling inlet a, a cooling outlet a, a cleaning liquid inlet b, a cooling backflow pipe b, a cooling inlet b, a cooling outlet b, a liquid outlet and a cleaning liquid outlet are arranged on the outer wall of the pump body, when the screw pump works, when the temperature in the pump is sensed by a sensing block b and the air pressure is higher, the cooling inlets are started, cooling substances respectively enter from the cooling inlets a and b, and; after the screw pump works, cleaning liquid enters the interior of the cleaning pump body from the cleaning liquid inlets a and b, and is discharged from the cleaning liquid outlet after cleaning.

In this embodiment, the feeding and discharging of the transport material, the cooling material, and the cleaning liquid can be controlled by the API system, thereby achieving automatic operation.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a two double-screw pumps that inhale of high temperature, a serial communication port, including the pump body (1), pump body (1) top is connected with air pressure control device (23), driving shaft (2) and driven shaft (3) are installed to the inside axial horizontal of pump body (1), pump body (1) middle part one side is equipped with inhales chamber (21), pump body (1) middle part opposite side is equipped with discharge chamber (22), pump body (1) is inside to be equipped with sealed lid (4), front bearing seat (5), mechanical seal (6), bush (7), rear bearing seat (8), gear housing (9) and gear box (10) along its length direction in proper order, cooling back flow a (11), cooling inlet a (12), cooling outlet a (17), washing liquid inlet a (13), entry b (18), cooling washing liquid b (14) have been seted up on pump body (1) outer wall, Specifically, in the working process of the screw pump, liquid enters from a liquid inlet flange (31), and is discharged from a liquid outlet (16) through a suction cavity (21) and a discharge cavity (22), cooling substances enter from a cooling inlet a (12), flow back and are cooled through a cooling return pipe a (11), and are discharged from a cooling outlet a (17), cooling substances enter from the cooling inlet b (15), flow back and are cooled through a cooling return pipe b (14), and are discharged from the cooling outlet b (19), and cleaning liquid enters from a cleaning liquid inlet a (13) and a cleaning liquid inlet b (18), and is discharged from a cleaning liquid outlet (20) after cleaning is completed.

2. A high-temperature double-suction twin-screw pump according to claim 1, characterized in that the air pressure control device (23) is composed of a housing (24) fixedly connected with the upper end of the pump body (1), an induction system (34) located above the suction chamber (21) and arranged inside the housing (24), and a transmission system (35) located above the induction system (34) and arranged inside the housing (24).

3. A high temperature double-suction twin-screw pump according to claim 2, characterised in that the induction system (34) is formed by an induction block a (25) located above the suction chamber (21) and mounted inside the casing (24), and an induction block b (26) located above the discharge chamber (22) and mounted inside the casing (24).

4. The high-temperature double-suction double-screw pump as claimed in claim 2, wherein the transmission system (35) is composed of a fixed shaft (27) which is positioned above the induction system (34) and fixed at the front end of the housing (24) along the length direction of the housing (24), a fixed block (28) fixedly sleeved on the outer surface of the fixed shaft (27), a Z-shaped telescopic rod (29) with one end fixedly connected with the fixed block (28), a telescopic block (30) fixedly connected with the other end of the Z-shaped telescopic rod (29), and a liquid inlet flange (31) connected with the rear end of the housing (24) through a bolt.

5. A high-temperature double-suction double-screw pump according to claim 1, characterized in that a driving gear (32) is fixedly mounted at the rear end of the driving shaft (2), and a driven gear (33) which is meshed with the driving gear (32) is fixedly mounted at the rear end of the driven shaft (3).

6. A high temperature double suction twin screw pump according to claim 5, characterised in that the driving gear (32) and the driven gear (33) are helical gears.

7. A high temperature double-suction twin-screw pump according to claim 1, characterized in that the pump body (1) has an arc-shaped cavity in the middle.