Waste heat recycling device of turbine vacuum pump

Abstract

The utility model relates to the technical field of turbine vacuum pumps, and particularly discloses a turbine vacuum pump waste heat recycling device which comprises a recycling bin, a recycling assembly is arranged in the recycling bin, a heat exchange pipe assembly is installed in the recycling assembly, an air inlet is formed in one end of the recycling bin, and a water inlet is formed in the other end of the recycling bin. A connecting pipe for discharging air is arranged at the other end of the recycling bin; the heat exchange pipe assembly comprises a spiral pipe, one end of the spiral pipe penetrates through the recycling bin and is provided with a water inlet, and the other end of the spiral pipe penetrates through the recycling bin and is provided with a water outlet. The recycling assembly comprises a heat preservation shell fixed in the recycling bin, a horizontally-placed heat conduction column is arranged at the axis position of the recycling bin, and a plurality of through holes which are evenly distributed at equal intervals are formed in the heat conduction column. The condensing medium entering the device can be quickly replaced through the spiral pipe, the condensing medium is heated by waste heat, and the waste heat of the turbine vacuum pump is fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine vacuum pumps, and particularly relates to a device for recovering and utilizing the waste heat of a turbine vacuum pump. Background Art

[0002] During the working process of a turbine vacuum pump, due to the compression and discharge of gas, a large amount of high-temperature moisture is generated. The high-temperature moisture contains rich heat energy. If directly discharged into the environment, it will not only cause waste of energy, but also may cause thermal pollution to the environment. The waste heat recovery and utilization device of the turbine vacuum pump can reuse this part of heat.

[0003] The existing publicly disclosed technical solution, with the publication number of CN206113736U, discloses a device for recovering and utilizing the waste heat of a turbine vacuum pump, including a steel plate frame. A gravity heat pipe heat exchanger is arranged inside the steel plate frame, and the gravity heat pipe heat exchanger is composed of gravity heat pipes and pipe fixing frames. The gravity heat pipe is composed of an outer pipe and an inner pipe, and the space between the outer pipe and the inner pipe is filled with a condensation medium. When high-temperature moisture is input into the inner pipe from the output end of the turbine vacuum pump, its heat is transferred from the outer wall of the inner pipe to the condensation medium. After heat exchange, the high-temperature moisture in the pipe will condense into condensate, and the converged condensate is transported to the required machinery through pipelines. In this way, through repeated circulation, the heat is efficiently transferred through the condensation medium, effectively saving energy and reducing heat emissions.

[0004] When the above technical solution is actually implemented, since each group of gravity heat pipes exists independently, the condensation medium input into the gravity heat pipes can only condense between the space of the outer pipe and the inner pipe, and it is not convenient to quickly replace the heated condensation medium. Summary of the Invention

[0005] The purpose of the utility model is to provide a device for recovering and utilizing the waste heat of a turbine vacuum pump, which can quickly replace the incoming condensation medium through a spiral pipe, utilize the waste heat to heat the condensation medium, and make full use of the waste heat of the turbine vacuum pump to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A device for recovering and utilizing the waste heat of a turbine vacuum pump, including a recovery bin, a recovery component is arranged inside the recovery bin, and a heat exchange tube component is installed inside the recovery component. An air inlet is installed at one end of the recovery bin, and a connecting pipe for air outlet is arranged at the other end of the recovery bin;

[0007] The heat exchange tube component includes a spiral pipe, and one end of the spiral pipe penetrates through the recovery bin to be provided with a water inlet, and the other end of the spiral pipe penetrates through the recovery bin to be provided with a water outlet;

[0008] The recovery component includes an insulation shell fixed inside the recovery bin, a horizontally placed heat-conducting column is arranged at the axial position of the recovery bin, a plurality of equidistant and evenly distributed through holes are opened inside the heat-conducting column, and a plurality of partition plates are staggered between the heat-conducting column and the insulation shell.

[0009] Preferably, the partition plate is a semi-circular ring structure, and the inner wall of the partition plate fits with the outer surface of the heat-conducting column, and the outer wall of the partition plate fits with the inner wall of the heat-insulating shell.

[0010] Preferably, both ends of the insulation shell are connected to an air inlet and a connecting pipe respectively, and a condensate outlet is also provided on the recovery bin.

[0011] Preferably, the spiral tube is distributed between two groups of partition plates, and is wound around the outside of the heat-conducting column, the inner side of the spiral tube fits the outer surface of the heat-conducting column, and the outer wall of the partition plate fits the inner wall of the insulation shell.

[0012] Preferably, a filter assembly is provided at one end of the connecting pipe away from the recovery bin, and an exhaust pipe is provided at the end of the filter assembly.

[0013] Preferably, the filter assembly includes a filter tube fixed on a connecting tube, and an activated carbon strip is installed inside the filter tube, a connecting slot is provided at the connection between the activated carbon strip and the filter tube, and a connecting block adapted to the connecting slot is provided inside the connecting slot.

[0014] Preferably, the filter assembly further comprises a disassembly head fixed on the exhaust pipe, and a connecting flange is provided at the connection between the disassembly head and the filter pipe, and the internal thread of the connecting flange is connected with a fixing bolt.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The high-temperature wet gas generated by the turbine vacuum pump can be heat recovered by the heat exchange tube assembly and the recovery assembly. The condensed medium directly enters the spiral tube from the water inlet, and the spiral tube realizes rapid heat exchange. The condensed medium can be discharged from the water outlet, so that the condensed medium is in a state of low temperature;

[0017] 2. The filter assembly is provided to filter the gas after heat exchange of the turbine vacuum pump, and the internal activated carbon strips can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the overall structure view of the present invention;

[0020] Figure 2 It is the structural schematic diagram of the heat exchange tube assembly of the present invention;

[0021] Figure 3 It is the semi-sectional structural schematic diagram of the recovery bin of the present invention;

[0022] Figure 4 It is the semi-sectional structural schematic diagram of the filter tube of the present invention.

[0023] Explanation of reference numerals:

[0024] 1. Recovery bin; 2. Connecting pipe; 3. Air inlet; 4. Filter assembly; 401. Disassembly head; 402. Connecting flange; 403. Filter tube; 404. Connecting slot; 405. Connecting block; 406. Activated carbon strip; 5. Exhaust pipe; 6. Heat exchange tube assembly; 601. Water inlet; 602. Spiral tube; 603. Water outlet; 7. Recovery component; 701. Thermal insulation shell; 702. Partition board; 703. Heat conduction column; 704. Through hole. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] The present invention provides a technical solution:

[0027] Please refer to Figures 1 to 3 , a waste heat recovery and utilization device for a turbine vacuum pump, including a recovery bin 1, a recovery component 7 is arranged inside the recovery bin 1, and a heat exchange tube assembly 6 is installed inside the recovery component 7. An air inlet 3 is installed at one end of the recovery bin 1, and a connecting pipe 2 for air outlet is arranged at the other end of the recovery bin 1;

[0028] The heat exchange tube assembly 6 includes a spiral tube 602, and one end of the spiral tube 602 passes through the recovery bin 1 and is provided with a water inlet 601, and the other end of the spiral tube 602 passes through the recovery bin 1 and is provided with a water outlet 603;

[0029] The recovery component 7 includes a heat-insulating shell 701 fixed inside the recovery bin 1, a horizontally placed heat-conducting column 703 is arranged at the axial position of the recovery bin 1, a plurality of evenly distributed through holes 704 are opened inside the heat-conducting column 703, and a plurality of partition plates 702 are alternately arranged between the heat-conducting column 703 and the heat-insulating shell 701, the partition plates 702 are semi-circular structures, and the inner wall of the partition plates 702 and the outer surface of the heat-conducting column 703 are mutually attached, and the partition plates 702 are arranged in a semi-circular structure. The outer wall of 02 is in contact with the inner wall of the insulation shell 701, and the two ends of the insulation shell 701 are respectively connected to the air inlet 3 and the connecting pipe 2. The recovery bin 1 is also provided with a condensate discharge outlet. The spiral tube 602 is distributed between the two groups of partition plates 702, and the spiral tube 602 is wound around the outside of the heat-conducting column 703. The inner side of the spiral tube 602 is in contact with the outer surface of the heat-conducting column 703, and the outer wall of the partition plate 702 is in contact with the inner wall of the insulation shell 701.

[0030] By adopting the above technical scheme, the condensing medium directly enters the spiral tube 602 from the water inlet 601, and the high-temperature moisture generated by the turbine vacuum pump can enter the insulation shell 701 from the air inlet 3, and is located between the insulation shell 701 and the heat-conducting column 703, and realizes rapid heat exchange through the spiral tube 602. At the same time, part of the high-temperature moisture can also pass through the through hole 704 in the heat-conducting column 703 to fully exchange heat, and the heat-conducting column 703 is used to improve the heat exchange efficiency. The heated condensing medium can be discharged from the water outlet 603, so that the condensing medium is in a state of low temperature, and the condensed water is discharged into the recovery bin 1 through the condensing water outlet opened at the bottom of the insulation shell 701, and is discharged from the condensing water outlet on the recovery bin 1. When the high-temperature moisture passes between the insulation shell 701 and the heat-conducting column 703, the moving direction of the high-temperature moisture can be changed through the partition plate 702, so that the high-temperature moisture can fully pass through the heat-conducting column 703.

[0031] Specifically, Figure 4 As shown, a filter assembly 4 is provided at one end of the connecting pipe 2 away from the recovery bin 1, and an exhaust pipe 5 is provided at the end of the filter assembly 4, the filter assembly 4 includes a filter tube 403 fixed on the connecting pipe 2, and an activated carbon strip 406 is installed inside the filter tube 403, a connecting slot 404 is provided at the connection between the activated carbon strip 406 and the filter tube 403, and a connecting block 405 matched with the connecting slot 404 is provided inside the connecting slot 404, the filter assembly 4 also includes a disassembly head 401 fixed on the exhaust pipe 5, and a connecting flange 402 is provided at the connection between the disassembly head 401 and the filter tube 403, and the internal thread of the connecting flange 402 is connected with a fixing bolt.

[0032] By adopting the above technical solution, when the gas after heat exchange enters the connecting pipe 2, it can enter the filtering assembly 4 and be filtered by the activated carbon strips 406 in the filtering assembly 4. The filtered gas can be discharged outward through the exhaust pipe 5. At the same time, the activated carbon strips 406 can be replaced as needed. When replacing, remove the fixing bolts on the connecting flange 402 to separate the disassembly head 401 from the filter pipe 403, and then pull the activated carbon strip 406. The connecting clamping block 405 on the activated carbon strip 406 slides in the connecting clamping groove 404, so as to take out the internal activated carbon strip 406.

[0033] Working principle: The high-temperature wet gas generated by the turbine vacuum pump can enter the heat preservation shell 701 from the air inlet 3. The condensing medium directly enters the spiral pipe 602 from the water inlet 601 and is located between the heat preservation shell 701 and the heat conduction column 703. Rapid heat exchange is realized through the spiral pipe 602. At the same time, part of the high-temperature wet gas can also pass through the through hole 704 in the heat conduction column 703 for sufficient heat exchange. The heat conduction column 703 is used to improve the heat exchange efficiency. The heated condensing medium can be discharged from the water outlet 603, so that the condensing medium is in a lower temperature state. The condensed water is discharged into the recovery bin 1 through the condensed water outlet opened at the bottom of the heat preservation shell 701 and discharged from the condensed water discharge port on the recovery bin 1. When the high-temperature wet gas passes between the heat preservation shell 701 and the heat conduction column 703, the moving direction of the high-temperature wet gas can be changed through the partition plate 702, so that the high-temperature wet gas fully passes through the heat conduction column 703. When the gas after heat exchange enters the connecting pipe 2, it can enter the filtering assembly 4 and be filtered by the activated carbon strips 406 in the filtering assembly 4. The filtered gas can be discharged outward through the exhaust pipe 5.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste heat recovery and utilization device for a turbine vacuum pump, comprising a recovery bin (1), characterized in that: A recovery assembly (7) is arranged inside the recovery bin (1), and a heat exchange tube assembly (6) is installed inside the recovery assembly (7); an air inlet (3) is installed at one end of the recovery bin (1), and a connecting pipe (2) for air outlet is arranged at the other end of the recovery bin (1); The heat exchange tube assembly (6) comprises a spiral tube (602), one end of the spiral tube (602) passes through the recovery bin (1) and is provided with a water inlet (601), and the other end of the spiral tube (602) passes through the recovery bin (1) and is provided with a water outlet (603); The recovery component (7) comprises a heat-insulating shell (701) fixed inside the recovery bin (1); a horizontally placed heat-conducting column (703) is arranged at the axial position of the recovery bin (1); a plurality of equidistant and evenly distributed through holes (704) are provided inside the heat-conducting column (703); and a plurality of partition plates (702) are alternately arranged between the heat-conducting column (703) and the heat-insulating shell (701).

2. The waste heat recovery and utilization device of a turbine vacuum pump according to claim 1, characterized in that: The partition plate (702) is a semi-circular ring structure, and the inner wall of the partition plate (702) fits with the outer surface of the heat-conducting column (703), and the outer wall of the partition plate (702) fits with the inner wall of the heat-insulating shell (701).

3. The waste heat recovery and utilization device of a turbine vacuum pump according to claim 1, characterized in that: The two ends of the heat-insulating shell (701) are respectively connected to the air inlet (3) and the connecting pipe (2), and the recovery bin (1) is also provided with a condensed water outlet.

4. A waste heat recovery and utilization device for a turbine vacuum pump according to claim 2, characterized in that: The spiral tube (602) is distributed between the two groups of partition plates (702), and the spiral tube (602) is wound around the outside of the heat-conducting column (703), the inner side of the spiral tube (602) and the outer surface of the heat-conducting column (703) are in contact with each other, and the outer wall of the partition plate (702) and the inner wall of the heat-insulating shell (701) are in contact with each other.

5. The waste heat recovery and utilization device of a turbine vacuum pump according to claim 4, characterized in that: A filter assembly (4) is provided at one end of the connecting pipe (2) away from the recovery bin (1), and an exhaust pipe (5) is provided at the end of the filter assembly (4).

6. The waste heat recovery and utilization device of a turbine vacuum pump according to claim 5, characterized in that: The filter assembly (4) comprises a filter tube (403) fixed on the connecting tube (2), and an activated carbon strip (406) is installed inside the filter tube (403), a connection slot (404) is provided at the connection between the activated carbon strip (406) and the filter tube (403), and a connection block (405) adapted to the connection slot (404) is provided inside the connection slot (404).

7. The waste heat recovery and utilization device of a turbine vacuum pump according to claim 6, characterized in that: The filter assembly (4) further comprises a disassembly head (401) fixed on the exhaust pipe (5), and a connecting flange (402) is provided at the connection between the disassembly head (401) and the filter pipe (403), and a fixing bolt is connected to the internal thread of the connecting flange (402).

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