CN220270175U

CN220270175U - Waste heat recycling system of biomass thermal power plant

Info

Publication number: CN220270175U
Application number: CN202321840164.6U
Authority: CN
Inventors: 李艳; 雷建华; 谭庆华
Original assignee: Anren Kaidi Green Energy Development Co ltd
Current assignee: Anren Kaidi Green Energy Development Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2023-12-29
Anticipated expiration: 2033-07-13

Abstract

The utility model discloses a biomass thermal power plant waste heat recycling system, which belongs to the technical field of waste heat recycling, and comprises a recycling box and a plate heat exchanger, wherein the top of the recycling box is provided with a circulating structure, and the recycling box is provided with an accelerating structure; the circulating structure comprises a water pump fixedly connected to the top of the recovery tank, a water suction pipe is installed at the input end of the water pump, a heat absorption pipe is installed at the output end of the water pump, and one end, far away from the water pump, of the heat absorption pipe is fixedly inserted into the inner cavity of the plate heat exchanger. According to the biomass thermal power plant waste heat recycling system, the effect of being convenient for rapidly recycling heat in circulating cooling water is achieved through the cooperation of the recycling box, the plate heat exchanger, the circulating structure and the accelerating structure; the effect of avoiding the collision damage of the servo motor as much as possible is achieved through the matched use of the protective cover, the radiating holes and the handle; through the cooperation of electronic digital display thermometer, release pipe and supplementary pipe, reached the effect that conveniently changes the inside water source of recovery tank, energy loss is reduced as far as possible.

Description

Waste heat recycling system of biomass thermal power plant

Technical Field

The utility model belongs to the technical field of waste heat recovery, and particularly relates to a biomass thermal power plant waste heat recovery and utilization system.

Background

The biomass power plant is a plant for generating electric energy by utilizing chemical energy of fuels such as platycodon grandiflorum, bark and the like, namely chemical energy of the fuels, thermal potential energy of steam, mechanical energy and electric energy. The efficiency of heat energy power generation is low, about 40%, about 60% of heat energy of steam passing through the steam turbine is not utilized, and the steam after acting flows into the condenser to be heated and liquefied.

Existing biomass thermal power plant waste heat recycling system:

the utility model has the advantages that the comparison document CN217608625U discloses a biomass thermal power plant waste heat recycling system, the system has simple structure and low recycling cost, in addition, by introducing part of heat into a nearby vegetable greenhouse, the system is used for geothermal heat and heating, on one hand, a large amount of energy is saved, a certain economic benefit is brought to the power plant, on the other hand, the system is used as a heat source of the vegetable greenhouse, the construction of a small heat source is reduced, and the environmental protection benefit is obvious; in addition, the method has small influence on the planting of the vegetable greenhouse, and can avoid damage to plant roots caused by overhigh local temperature when the vegetable greenhouse is heated especially to soil. "

The heat generated by heat release liquefaction of the condenser is taken away by the circulating cooling water, more heat is not utilized in the circulating cooling water, and the conventional recycling system of the thermal power plant possibly lacks measures for recovering the heat in the circulating cooling water;

therefore, the utility model provides a biomass thermal power plant waste heat recycling system.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, heat generated by heat release liquefaction of a condenser is taken away by circulating cooling water, and more heat is not utilized in the circulating cooling water, and provides a biomass thermal power plant waste heat recycling system.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the biomass thermal power plant waste heat recycling system comprises a recycling box and a plate heat exchanger, wherein a circulating structure is arranged at the top of the recycling box, and an accelerating structure is arranged on the recycling box;

the circulating structure comprises a water pump fixedly connected to the top of the recovery tank, a water suction pipe is arranged at the input end of the water pump, a heat absorption pipe is arranged at the output end of the water pump, one end of the heat absorption pipe, far away from the water pump, is fixedly inserted into the inner cavity of the plate heat exchanger, a heat release pipe is fixedly inserted into the inner cavity of the recovery tank, one end of the heat release pipe, far away from the plate heat exchanger, is fixedly inserted into the inner cavity of the recovery tank, a cooling water inlet pipe is fixedly inserted into the inner cavity of the plate heat exchanger, and a cooling water drain pipe is fixedly inserted into the inner cavity of the plate heat exchanger;

the accelerating structure comprises a servo motor fixedly connected to the top of the recovery box, a driving shaft is welded to the output end of the servo motor, accelerating fan blades are mounted on the outer surface of the driving shaft, and the driving shaft is rotatably connected to the top of an inner cavity of the recovery box.

Preferably, the top of the recovery box is hinged with a protective cover, the outer surface of the protective cover is provided with a heat dissipation hole, and one side of the protective cover, which is far away from the recovery box, is fixedly connected with a handle.

Through setting up safety cover, louvre and handle, operating personnel can hold the handle and overturn the safety cover about, and hollow design's safety cover can properly protect servo motor, avoids servo motor to receive debris striking damage as far as possible.

Preferably, the electronic digital display thermometer is arranged on the outer surface of the recovery box, the release pipe is fixedly inserted into the top of the recovery box, the supplementing pipe is fixedly inserted into the top of the recovery box, and the electromagnetic valves are arranged in the inner cavities of the release pipe and the supplementing pipe.

Through setting up electron digital display thermometer, release pipe and supplementary pipe, the inside temperature of recovery tank can be accurately measured to electron digital display thermometer, when the temperature satisfied life hot water standard, started the solenoid valve in the release pipe earlier and discharged hot water, and the solenoid valve in the supplementary pipe of restarting is supplied cold water to the recovery tank, is convenient for change the recovery tank internal water source on time, reduces the energy loss as far as possible.

Preferably, an observation window is arranged on the outer surface of the recovery box, and the width of the observation window is smaller than that of the recovery box.

Through setting up the observation window, the heating condition of the inside water source of operating personnel accessible observation window direct observation collection box is convenient for operating personnel grasp and judge the inside surplus water yield of collection box.

Preferably, the top of the recovery box is provided with an air vent, the inner surface of the recovery box is connected with a filter screen in a sliding mode, and the filter screen is positioned in the air vent.

Through setting up ventilation hole and filter screen, the inside vaporous gaseous accessible ventilation hole of collection box outwards discharges to the filter screen in the ventilation hole can block debris entering collection box inside, avoids the inside water source of collection box to receive the pollution as far as possible.

Preferably, the top of the filter screen is welded with a bearing block, and the bottom of the bearing block is abutted against the top of the recovery box.

Through setting up the bearing block, operating personnel upwards pulls the bearing block and can drive the filter screen and break away from the air vent rapidly, and the operating personnel of being convenient for clear up dust and impurity that the filter screen surface accumulated rapidly.

In summary, the technical effects and advantages of the present utility model are: according to the biomass thermal power plant waste heat recycling system, the effect of being convenient for rapidly recycling heat in circulating cooling water is achieved through the cooperation of the recycling box, the plate heat exchanger, the circulating structure and the accelerating structure; the effect of avoiding the collision damage of the servo motor as much as possible is achieved through the matched use of the protective cover, the radiating holes and the handle; through the cooperation of electronic digital display thermometer, release pipe and supplementary pipe, reached the effect that the convenient inside water source of recovery tank of in time changing reduces the energy loss as far as possible.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present utility model;

FIG. 2 is a schematic perspective cross-sectional view of the recovery tank of the present utility model;

FIG. 3 is a schematic view of another overall perspective view of the present utility model;

fig. 4 is an enlarged schematic view of area a of fig. 1 in accordance with the present utility model.

In the figure:

1. a recovery box; 2. a plate heat exchanger;

3. a circulation structure; 301. a water pump; 302. a water pumping pipe; 303. a heat absorbing pipe; 304. a heat release pipe; 305. a cooling water inlet pipe; 306. a cooling water drain pipe;

4. an acceleration structure; 401. a servo motor; 402. a drive shaft; 403. accelerating the fan blades;

5. a protective cover; 6. a heat radiation hole; 7. a grip; 8. an electronic digital display thermometer; 9. a release tube; 10. a replenishment pipe; 11. an observation window; 12. an air vent; 13. a filter screen; 14. and a bearing block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a waste heat recycling system of a biomass thermal power plant includes a recovery tank 1 and two plate heat exchangers 2, wherein the two plate heat exchangers 2 are symmetrically distributed with the recovery tank 1 as a center, and meanwhile, the plate heat exchangers 2 are existing equipment and the plate heat exchangers 2 can complete heat exchange between liquid and liquid.

Referring to fig. 1-2, a circulation structure 3 is arranged at the top of the recovery tank 1, the circulation structure 3 comprises a water pump 301 fixedly connected to the top of the recovery tank 1, a water suction pipe 302 is fixedly arranged at the input end of the water pump 301, and the water suction pipe 302 is fixedly inserted into the top of the recovery tank 1; the heat absorption pipe 303 is fixedly arranged at the output end of the water pump 301, one end, away from the water pump 301, of the heat absorption pipe 303 is fixedly inserted into the inner cavity of the plate heat exchanger 2, the heat release pipe 304 is fixedly inserted into the inner cavity of the plate heat exchanger 2, and when the water pump 301 is started, cold water in the recovery tank 1 can be pumped out through the water suction pipe 302 and then conveyed into the plate heat exchanger 2 through the heat absorption pipe 303.

In addition, the heat release pipe 304 is positioned below the heat absorption pipe 303, one end of the heat release pipe 304, which is far away from the plate heat exchanger 2, is fixedly inserted into the inner cavity of the recovery tank 1, and cold water in the heat absorption pipe 303 is rapidly warmed up through heat exchange in the plate heat exchanger 2 and returns to the interior of the recovery tank 1 through the heat release pipe 304; the inner cavity of the plate heat exchanger 2 is fixedly inserted with a cooling water inlet pipe 305, the inner cavity of the plate heat exchanger 2 is fixedly inserted with a cooling water outlet pipe 306, circulating cooling water firstly enters the plate heat exchanger 2 through the cooling water inlet pipe 305 and then is discharged outwards through the cooling water outlet pipe 306, and the water temperature of the circulating cooling water containing heat drops rapidly after passing through the plate heat exchanger 2.

In addition, an accelerating structure 4 is arranged on the recovery box 1, the accelerating structure 4 comprises a servo motor 401 fixedly connected to the top of the recovery box 1, and the servo motor 401 is positioned at the center of the top of the recovery box 1; the output end of the servo motor 401 is welded with a driving shaft 402, the height of the driving shaft 402 is smaller than that of the recovery box 1, and the driving shaft 402 is rotatably connected to the top of the inner cavity of the recovery box 1; the outer surface of the driving shaft 402 is fixedly provided with the accelerating fan blades 403, the accelerating fan blades 403 can be driven to rotate by the starting servo motor 401 through the driving shaft 402, and the flow speed of the water source in the recovery box 1 can be accelerated by the rotation of the accelerating fan blades 403, so that the heating time of the water source in the recovery box 1 can be shortened as much as possible.

Referring to fig. 1 and 3, a protecting cover 5 is hinged to the top of the recovery box 1, the inside of the protecting cover 5 is hollow, and the protecting cover 5 can be turned left and right along the top of the recovery box 1; the heat dissipation hole 6 has been seted up to the surface of safety cover 5, and one side that safety cover 5 kept away from recovery tank 1 fixedly connected with handle 7, and operating personnel holds handle 7 and can overturn safety cover 5 and cover servo motor 401, avoids servo motor 401 to the greatest extent to collide with the damage. The surface of collection box 1 is provided with observation window 11, and the width of observation window 11 is less than the width of collection box 1, and operating personnel accessible observation window 11 direct observation collection box 1 inside specific condition.

Referring to fig. 2-3, an electronic digital thermometer 8 is fixedly installed on the outer surface of the recovery box 1, the electronic digital thermometer 8 is the existing equipment, and a waterproof probe of the electronic digital thermometer 8 is positioned in the recovery box 1; the top of the recovery box 1 is fixedly inserted with a release pipe 9, the top of the recovery box 1 is fixedly inserted with a supplementing pipe 10, and the release pipe 9 and the supplementing pipe 10 are connected with an external pipeline; the inner cavities of the release pipe 9 and the supplementing pipe 10 are respectively provided with an electromagnetic valve, when the water temperature inside the recovery tank 1 measured by the electronic digital display thermometer 8 meets the standard of domestic hot water, an operator firstly starts the electromagnetic valve inside the release pipe 9 to quickly discharge the hot water stored in the recovery tank 1, then the operator restarts the electromagnetic valve inside the supplementing pipe 10, and the inside of the recovery tank 1 can be quickly supplemented by external cold water.

Referring to fig. 1 and 4, an air vent 12 is formed in the top of the recovery tank 1, and air generated by evaporation of a water source in the recovery tank 1 can be discharged outwards through the air vent 12, so that damage caused by accumulation of air in the recovery tank 1 is avoided as much as possible; the inner surface sliding connection of collection box 1 has filter screen 13, and filter screen 13 is located the gas vent 12, and filter screen 13 can intercept and filter the impurity in the external gas, avoids impurity to pass gas vent 12 to fall into collection box 1 inside as far as possible and causes the water source pollution. The top welding of filter screen 13 has the supporting block 14, and the bottom of supporting block 14 is contradicted with the top of collection box 1, and operating personnel upwards pulls supporting block 14 and can drive filter screen 13 and break away from ventilation hole 12 rapidly, is convenient for regularly clear up impurity and the spot of filter screen 13 surface accumulation.

Working principle: as shown in fig. 1-4, when the waste heat recycling system of the biomass thermal power plant is used, firstly, an operator starts a water pump 301 to pump cold water in the recycling tank 1 through a water pumping pipe 302 and then inputs the cold water into the plate heat exchanger 2 through a heat absorbing pipe 303, meanwhile, circulating cooling water containing heat enters the plate heat exchanger 2 through a cooling water inlet pipe 305 and then is discharged outwards through a cooling water drain pipe 306, heat exchange is completed between the cold water in the plate heat exchanger 2 and the circulating cooling water, the original cold water rapidly heats and enters the recycling tank 1 from the plate heat exchanger 2 through a heat discharging pipe 304, then the water temperature in the recycling tank 1 gradually rises, meanwhile, a servo motor 401 at the top of the recycling tank 1 is started, the servo motor 401 can drive an accelerating fan blade 403 to rotate through a driving shaft 402, the rotation of the accelerating fan blade 403 can accelerate the flow speed of the water flow, the whole heating time of the water flow in the recycling tank 1 is shortened, the operator can judge the actual water temperature in the recycling tank 1 through an electronic digital thermometer 8, when the water temperature in the recycling tank 1 meets the standard of life water, the operator starts a release pipe 9 and discharges the heat outwards, then the heat from the plate heat exchanger 2 through the heat exchanging pipe 304, and then the electromagnetic valve 10 is filled up by the operator, and the waste heat recycling system is filled inside the biomass thermal power plant, and the recycling system is characterized in that the recycling system is filled outside.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The biomass thermal power plant waste heat recycling system comprises a recycling box (1) and a plate heat exchanger (2), and is characterized in that a circulating structure (3) is arranged at the top of the recycling box (1), and an accelerating structure (4) is arranged on the recycling box (1);

the circulating structure (3) comprises a water pump (301) fixedly connected to the top of the recovery box (1), a water suction pipe (302) is installed at the input end of the water pump (301), a heat absorption pipe (303) is installed at the output end of the water pump (301), one end, far away from the water pump (301), of the heat absorption pipe (303) is fixedly inserted into the inner cavity of the plate heat exchanger (2), a heat release pipe (304) is fixedly inserted into the inner cavity of the recovery box (1), one end, far away from the plate heat exchanger (2), of the heat release pipe (304) is fixedly inserted into the inner cavity of the plate heat exchanger (2), a cooling water inlet pipe (305) is fixedly inserted into the inner cavity of the plate heat exchanger (2), and a cooling water drain pipe (306) is fixedly inserted into the inner cavity of the plate heat exchanger (2);

the accelerating structure (4) comprises a servo motor (401) fixedly connected to the top of the recovery box (1), a driving shaft (402) is welded at the output end of the servo motor (401), accelerating fan blades (403) are mounted on the outer surface of the driving shaft (402), and the driving shaft (402) is rotationally connected to the top of an inner cavity of the recovery box (1).

2. The biomass thermal power plant waste heat recycling system according to claim 1, wherein the top of the recycling box (1) is hinged with a protecting cover (5), the outer surface of the protecting cover (5) is provided with a heat dissipation hole (6), and one side, far away from the recycling box (1), of the protecting cover (5) is fixedly connected with a handle (7).

3. The biomass thermal power plant waste heat recycling system according to claim 1, wherein an electronic digital display thermometer (8) is mounted on the outer surface of the recycling box (1), a release pipe (9) is fixedly inserted into the top of the recycling box (1), a supplement pipe (10) is fixedly inserted into the top of the recycling box (1), and electromagnetic valves are arranged in the inner cavities of the release pipe (9) and the supplement pipe (10).

4. The biomass thermal power plant waste heat recycling system according to claim 1, wherein an observation window (11) is arranged on the outer surface of the recovery tank (1), and the width of the observation window (11) is smaller than that of the recovery tank (1).

5. The biomass thermal power plant waste heat recycling system according to claim 1, wherein the top of the recycling box (1) is provided with an air vent (12), the inner surface of the recycling box (1) is connected with a filter screen (13) in a sliding mode, and the filter screen (13) is located in the air vent (12).

6. The biomass thermal power plant waste heat recycling system according to claim 5, wherein a bearing block (14) is welded at the top of the filter screen (13), and the bottom of the bearing block (14) is abutted against the top of the recovery tank (1).