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CN-122014595-A - Lubricating oil cooling device for high-temperature high-pressure plunger pump

CN122014595ACN 122014595 ACN122014595 ACN 122014595ACN-122014595-A

Abstract

The invention belongs to the technical field of lubricating oil cooling, and discloses a high-temperature and high-pressure plunger pump lubricating oil cooling device which comprises a plunger pump main body, wherein an oil outlet is formed in the top end of the plunger pump main body, a heat exchange mechanism is fixed on the outer part of the plunger pump main body, an oil return port is formed in the outer part of the plunger pump main body, the top end of a heat exchange cylinder is fixedly connected with a first conveying pipe, and the output end of the first conveying pipe is fixedly connected with a spiral heat exchange pipe.

Inventors

  • TANG AIZHONG
  • XU RONGCHUN
  • YAO XINYUN
  • ZHANG JIEXUAN
  • Gao Xingqiao

Assignees

  • 昆仑洁能(苏州)装备有限公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (10)

  1. 1. The high-temperature high-pressure plunger pump lubricating oil cooling device comprises a plunger pump main body (1) and is characterized in that an oil outlet (2) is formed in the top end of the plunger pump main body (1), a heat exchange mechanism (3) is fixed on the outer portion of the plunger pump main body (1), a cooling mechanism (4) is arranged on the outer portion of the plunger pump main body (1), and an oil return port (5) is formed in the outer portion of the plunger pump main body (1); The heat exchange mechanism (3) comprises a heat exchange cylinder (301), a first conveying pipe (302) and a spiral heat exchange pipe (303), wherein the heat exchange cylinder (301) is fixedly connected with the plunger pump main body (1), the top end of the heat exchange cylinder (301) is fixedly connected with the first conveying pipe (302), and the output end of the first conveying pipe (302) is fixedly connected with the spiral heat exchange pipe (303); The cooling mechanism (4) comprises a heat dissipation liquid storage tank (401), a conveying pump (402) and a third conveying pipe (403), wherein the heat dissipation liquid storage tank (401) is fixedly connected with the plunger pump main body (1), the conveying pump (402) is fixedly connected with the heat exchange cylinder (301), and the output end of the conveying pump (402) is fixedly provided with the third conveying pipe (403).
  2. 2. The high-temperature and high-pressure plunger pump lubricating oil cooling device according to claim 1, wherein a second conveying pipe (304) is fixed at one end of the spiral heat exchange pipe (303) far away from the first conveying pipe (302), the input end of the first conveying pipe (302) is communicated with the oil outlet (2), and the output end of the spiral heat exchange pipe (303) is communicated with the input end of the oil return port (5).
  3. 3. The high-temperature high-pressure plunger pump lubricating oil cooling device according to claim 1, wherein a fourth conveying pipe (404) is fixed at the top end of the heat-dissipation liquid storage tank (401), a supporting frame (405) is fixed inside the heat-dissipation liquid storage tank (401), a turbulence rod (406) is rotatably connected inside the supporting frame (405), an impeller (407) is fixed at the top end of the turbulence rod (406), a medicine adding pipe (408) is movably connected inside the supporting frame (405), a limiting spring (409) is fixed inside the medicine adding pipe (408), a limiting rod (410) is fixed at one end of the limiting spring (409), a partition plate (411) is fixed inside the medicine adding pipe (408), and a liquid storage box (412) is fixed outside the medicine adding pipe (408).
  4. 4. The high-temperature and high-pressure plunger pump lubricating oil cooling device according to claim 3, wherein a box cover (413) is connected to the top end of the liquid storage box (412) in a threaded mode, a connecting rod (414) is connected to the inside of the liquid storage box (412) in a sliding mode, a piston (415) is fixed to one end of the connecting rod (414), a pressure plate (416) is fixed to one end, far away from the piston (415), of the connecting rod (414), a supporting ring (417) is connected to the top end of the liquid storage box (412) in a rotating mode, and a limiting block (418) is fixed to one end of the supporting ring (417).
  5. 5. The lubricating oil cooling device for the high-temperature and high-pressure plunger pump according to claim 3, wherein the output end of the third conveying pipe (403) is communicated with the heat dissipation liquid storage tank (401), and the output end of the fourth conveying pipe (404) is communicated with the heat exchange cylinder (301).
  6. 6. The high-temperature and high-pressure plunger pump lubricating oil cooling device according to claim 3, wherein a spiral disc is arranged outside the turbulence bar (406), two groups of impellers (407) are arranged, and the impellers (407) are symmetrically distributed about the central axis of the support frame (405).
  7. 7. The high-temperature and high-pressure plunger pump lubricating oil cooling device according to claim 3, wherein three groups of dosing pipes (408) are arranged, the dosing pipes (408) are distributed in an array, and the dosing pipes (408) are in threaded connection with the supporting frame (405).
  8. 8. The high-temperature and high-pressure plunger pump lubricating oil cooling device according to claim 3, wherein the limit spring (409) is used for extruding the limit rod (410), and the outer wall of the limit rod (410) is attached to the inner wall of the partition plate (411).
  9. 9. The lubricating oil cooling device for the high-temperature and high-pressure plunger pump according to claim 3, wherein the limiting rod (410) is in sliding connection with the partition plate (411), two groups of through holes are formed in the dosing tube (408), two groups of one-way valves are mounted on the outer portion of the supporting frame (405), and the through holes are in butt joint with the one-way valves.
  10. 10. The high-temperature and high-pressure plunger pump lubricating oil cooling device according to claim 4, wherein the output end of the liquid storage box (412) is communicated with the dosing pipe (408), the outer wall of the connecting rod (414) is attached to the inner wall of the liquid storage box (412), the outer wall of the piston (415) is attached to the inner wall of the liquid storage box (412), and the piston (415) is in sliding connection with the liquid storage box (412).

Description

Lubricating oil cooling device for high-temperature high-pressure plunger pump Technical Field The invention belongs to the technical field of lubricating oil cooling, and particularly relates to a high-temperature high-pressure plunger pump lubricating oil cooling device. Background The plunger pump is used as core equipment for high-pressure fluid delivery, and is widely applied to the industrial fields of petroleum, chemical industry, energy sources and the like, the plunger pump needs to bear high temperature of more than 300 ℃ and high pressure of more than 25MPa for a long time under severe working conditions such as supercritical power generation, thickened oil exploitation and the like, the annual operation time is required to be more than 8000 hours, lubricating oil is used as a key medium for guaranteeing normal operation of the plunger pump, the temperature stability of the plunger pump directly determines the lubricating performance, the abrasion degree of moving parts and the whole service life of the pump body, if the oil temperature is too high, the viscosity of the lubricating oil is suddenly reduced, an oil film is broken, dry friction of parts in the pump body is caused, the operation stability of the equipment is greatly reduced, even the core parts such as plunger rods and sealing elements are invalid, if the oil temperature fluctuation is too large, the working reliability of a lubricating system is also influenced, the equipment maintenance cost and the shutdown risk are increased, the existing cooling liquid is influenced by factors such as mechanical stirring, temperature pressure change, air mixing and the like in the long-time circulating use process, a large number of bubbles are extremely easy to be generated, the existing cooling system lacks a special defoaming treatment structure, the defoaming treatment cannot be timely performed on the cooling liquid, the bubbles in the cooling liquid can be greatly reduced, the heat conducting performance is further reduced, the heat exchange efficiency is further, the pressure is stable, and the bubbles in the cooling liquid can be influenced by the fluctuation. The publication No. CN112576495A discloses a plunger pump, which comprises a pump body, a water reservoir and a reverser, wherein the reverser has two states, namely, a normal working state, a water pipe is communicated to a water inlet of the pump body, an inlet of the water reservoir is communicated to a water outlet of the pump body so as to take water from a river channel and a ditch through the water pipe and store a certain amount of water in the water reservoir, the working state is dredged, the inlet of the water reservoir is communicated to the water inlet of the pump body, the water pipe is communicated to the water outlet of the pump body, and after the water path pump body buffered in the water reservoir is pressurized, a filter is flushed to realize dredging of the filter. The device can realize the automatic mediation of filter when using, reduces the pump body and blocks up the trouble, promotes water delivery operation continuity, but can't solve plunger pump lubricating oil high temperature and coolant liquid defoaming problem, also has high-efficient heat transfer structure, can't adapt to high temperature high pressure operating mode, and the present therefore proposes a high temperature high pressure plunger pump lubricating oil heat sink, can high-efficient cooling lubricating oil, still can dispel the heat to the coolant liquid vortex, in time defoam, guarantee plunger pump long-term steady operation. Disclosure of Invention In order to solve the problems in the background technology, the invention provides a high-temperature high-pressure plunger pump lubricating oil cooling device. In order to achieve the aim, the invention provides the technical scheme that the high-temperature high-pressure plunger pump lubricating oil cooling device comprises a plunger pump main body, wherein the top end of the plunger pump main body is provided with an oil outlet, a heat exchange mechanism is fixed on the outer part of the plunger pump main body, a cooling mechanism is arranged on the outer part of the plunger pump main body, and an oil return port is arranged on the outer part of the plunger pump main body; The heat exchange mechanism comprises a heat exchange cylinder, a first conveying pipe and a spiral heat exchange pipe, the heat exchange cylinder is fixedly connected with the plunger pump main body, the top end of the heat exchange cylinder is fixedly connected with the first conveying pipe, and the output end of the first conveying pipe is fixedly connected with the spiral heat exchange pipe; The cooling mechanism comprises a heat dissipation liquid storage tank, a delivery pump and a third delivery pipe, wherein the heat dissipation liquid storage tank is fixedly connected with the plunger pump main body, the delivery pump is fixedly connected with the heat excha