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CN-224207534-U - High-pressure methanol energy recovery device

CN224207534UCN 224207534 UCN224207534 UCN 224207534UCN-224207534-U

Abstract

The utility model relates to the technical field of methanol energy recovery, in particular to a high-pressure methanol energy recovery device which comprises a methanol separation tank, wherein a methanol filter is communicated with the discharge end of the methanol separation tank, a hydraulic turbine power generation device and a pressure reducing valve are respectively communicated with the discharge end of the methanol filter, one end of the hydraulic turbine power generation device is communicated with a pre-rectifying system, the hydraulic turbine power generation device converts recovered energy into electric energy and then transmits the electric energy to an electric power system, the output end of the pressure reducing valve is communicated with the pre-rectifying system, a filter element is inserted into the top surface of the methanol filter, and an air inlet pipe is communicated with the lower end of the methanol filter. The efficient recycling of high-pressure methanol energy is realized, production interruption caused by faults of the hydraulic turbine power generation device is avoided, the backwash assembly utilizes high-pressure nitrogen to remove impurities accumulated on the surface of the filter element from the filter element, the filtering performance of the filter element is conveniently and rapidly recovered, and the running stability and reliability of the methanol filter are improved.

Inventors

  • ZHANG RUIQING
  • HUA YONGQIANG

Assignees

  • 中天合创能源有限责任公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (7)

  1. 1. The high-pressure methanol energy recovery device comprises a methanol separation tank (1), wherein a methanol filter (2) is communicated with the discharge end of the methanol separation tank (1), a hydraulic turbine power generation device (3) and a pressure reducing valve (4) are respectively communicated with the discharge end of the methanol filter (2), and the high-pressure methanol energy recovery device is characterized in that one end of the hydraulic turbine power generation device (3) is communicated with a pre-rectifying system (5), the hydraulic turbine power generation device (3) converts recovered energy into electric energy and then transmits the electric energy to an electric power system (6), and the output end of the pressure reducing valve (4) is communicated with the pre-rectifying system (5); The novel methanol filter is characterized in that a filter element (8) is inserted into the top surface of the methanol filter (2), an air inlet pipe (9) is communicated with the lower end of the methanol filter (2), a liquid inlet pipe (10) with a valve is communicated with the side wall of the lower end of the methanol filter (2), a liquid outlet pipe (11) with a valve is communicated with the outer wall of the upper end of the methanol filter (2), a drain pipe (12) is arranged at the lower end of the liquid outlet pipe (11), a tube plate (13) is arranged in the methanol filter (2), a back flushing assembly (14) is arranged at the lower end of the tube plate (13), the back flushing assembly (14) comprises an annular pipe (1401), and the annular pipe (1401) is communicated with the air inlet pipe (9); The methanol filter (2) top surface is equipped with quick detach subassembly (7), quick detach subassembly (7) are including spacer sleeve (701), spacer sleeve (701) bottom surface and methanol filter (2) top surface fixed connection, inside grafting of spacer sleeve (701) upper end has collar (702), collar (702) inside and filter core (8) upper end periphery wall fixed connection.
  2. 2. The high-pressure methanol energy recovery device as set forth in claim 1, wherein the bottom surface of the methanol filter (2) is of an inclined structure, an air pump (15) is installed on the outer wall of the methanol filter (2) through an installation seat, the output end of the air pump (15) is communicated with the air inlet pipe (9), and a plurality of filter elements (8) and quick-dismantling components (7) are respectively arranged.
  3. 3. The high-pressure methanol energy recovery device as set forth in claim 2, wherein the back flushing assembly (14) comprises a shunt tube (1402), wherein the lower ends of the shunt tubes (1402) are respectively communicated with the upper ends of the annular tubes (1401), the shunt tubes (1402) respectively penetrate through the tube plate (13), and the upper ends of the shunt tubes (1402) are respectively communicated with the lower ends of the filter elements (8).
  4. 4. The high-pressure methanol energy recovery device as set forth in claim 2, wherein the quick-release assembly (7) comprises two insertion blocks (703), a plurality of insertion holes (704) are respectively formed in the positioning sleeve (701) and the mounting ring (702), and the insertion blocks (703) are in insertion fit with the insertion holes (704).
  5. 5. The high-pressure methanol energy recovery device as set forth in claim 4, wherein an arc block (705) is fixedly arranged between the two inserting blocks (703), and a pull ring (706) is fixedly arranged on the outer wall of the arc block (705).
  6. 6. The high-pressure methanol energy recovery device as set forth in claim 5, wherein the positioning sleeve (701) is internally provided with two limiting projections (707) in a symmetrical structure, the outer wall of the mounting ring (702) is provided with two limiting grooves (708), the inner wall of the limiting projections (707) is in clamping fit with the outer wall of the limiting grooves (708), and the top surface of the mounting ring (702) is provided with two shifting blocks (709) in a symmetrical structure.
  7. 7. The high-pressure methanol energy recovery device as set forth in claim 6, wherein the outer wall of the positioning sleeve (701) is fixedly provided with two elastic chucks (710), the outer wall of the insertion block (703) is provided with two clamping grooves (711), and the elastic chucks (710) are in clamping fit with the clamping grooves (711).

Description

High-pressure methanol energy recovery device Technical Field The utility model relates to the technical field of methanol energy recovery, in particular to a high-pressure methanol energy recovery device. Background Methanol is taken as a basic chemical raw material, has important importance in the fields of energy, chemical industry and the like, in the current coal-to-methanol process, high-pressure crude methanol (pressure is more than 5 MPa) is directly decompressed by a decompression valve and then enters an expansion tank, a large amount of pressure energy contained in the methanol is not effectively recovered, so that energy is wasted, and in the traditional process, the decompression valve is only taken as a pressure regulating device, so that energy recovery cannot be realized, and obvious energy consumption loss is caused; Through searching, the Chinese patent with the publication number of CN103373898B provides a methanol synthesis process and a methanol synthesis system, the pressure energy is recovered through a hydraulic turbine, and the mechanical energy converted by the hydraulic turbine is used as driving force to drive a water pump, a motor or a generator, so that the pressure energy is effectively utilized; But in the use, it is found that the high-pressure methanol contains various impurities such as catalyst particles, metal scraps, rust and the like, the impurities can affect the subsequent equipment and process, and long-term filtration of the impurities is continuously accumulated to reduce the filtration efficiency, so that the quality and the production efficiency of a product are affected, the replacement of a filter element is also complicated, and the continuity and the efficiency of production are affected. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the high-pressure methanol energy recovery device, which realizes the effective recovery and utilization of high-pressure methanol energy, avoids the production interruption caused by the failure of a hydraulic turbine power generation device, and the backwash assembly removes impurities accumulated on the surface of the filter element from the filter element by utilizing high-pressure nitrogen, thereby conveniently and rapidly recovering the filtering performance of the filter element and improving the operation stability and reliability of the methanol filter. In order to solve the technical problems, the utility model provides the technical scheme that the high-pressure methanol energy recovery device comprises a methanol separation tank, wherein the discharge end of the methanol separation tank is communicated with a methanol filter, the discharge end of the methanol filter is respectively communicated with a hydraulic turbine power generation device and a pressure reducing valve, one end of the hydraulic turbine power generation device is communicated with a pre-rectifying system, the hydraulic turbine power generation device converts recovered energy into electric energy and then transmits the electric energy to an electric power system, and the output end of the pressure reducing valve is communicated with the pre-rectifying system; The top surface of the methanol filter is inserted with a filter element, the lower end of the methanol filter is communicated with an air inlet pipe, the side wall of the lower end of the methanol filter is communicated with a liquid inlet pipe with a valve, the outer wall of the upper end of the methanol filter is communicated with a liquid outlet pipe with a valve, the lower end of the liquid outlet pipe is provided with a sewage draining pipe, the inside of the methanol filter is provided with a tube plate, the lower end of the tube plate is provided with a back flushing assembly, the back flushing assembly comprises an annular pipe, and the annular pipe is communicated with the air inlet pipe; The methanol filter top surface is equipped with quick detach subassembly, quick detach subassembly includes the spacer sleeve, spacer sleeve bottom surface and methanol filter top surface fixed connection, the inside grafting of spacer sleeve upper end has the collar, the collar is inside to be connected with filter core upper end periphery wall fixed connection. Preferably, the methanol filter bottom is the slope structure, the air pump is installed through the mount pad to the methanol filter outer wall, the output and the intake pipe of air pump are linked together, filter core and quick detach subassembly are equipped with a plurality of respectively. Through above-mentioned technical scheme, make things convenient for impurity to discharge to outside from the blow off pipe fast through the slope bottom surface of methanol filter, reduced methanol filter bottom deposit risk. Preferably, the back flushing assembly comprises a shunt pipe, wherein the lower end of the shunt pipe is respectively communicated with the upper end of the annular pipe, th