Cold and heat combined supply system based on clean energy

Abstract

The invention discloses a combined cooling and heating system based on clean energy, and relates to the technical field of combined cooling and heating. The invention discloses a cold and heat combined supply system based on clean energy. The system comprises a fuel gas direct-fired machine, an electric refrigeration centrifugal machine, a hot water supply heat exchanger and a control system. Water flow subjected to cold and heat exchange is recycled through the waste heat recovery device, heat loss in the heating unit is reduced, and the energy utilization rate of the cold and heat combined supply system is increased; the material moving block drives the sediment in front of the material moving block to move forwards along the material moving cavity, after the material moving block reaches the height of the first spray head, liquid sprayed out of the first spray head crushes the sediment on the material moving block, the sediment expands all around, and therefore the sediment enters the stirring force concentration position of the slurry stirring device again, and uniform stirring of slurry is promoted; by alternately adjusting the positions of the baffles on the two sides, the demister is divided into the left part and the right part for treatment in sequence, the demister can be cleaned in the spraying process, and normal desulfurization treatment of the flue gas desulfurization tower on flue gas is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of combined cooling and heating, and in particular to a combined cooling and heating system based on clean energy. Background Art

[0002] Combined Cooling, Heating and Power (CCHP) refers to the use of natural gas as the main fuel to drive gas turbines, micro-engines or internal combustion engine generators and other gas-fired power generation equipment to generate electricity to meet the electricity needs of users. The waste heat discharged after the system generates electricity is used to provide heating and cooling to users through waste heat recovery equipment, such as waste heat boilers, waste heat direct-fired engines, etc.). The water flow after the heat exchange is reused through the waste heat recovery device, which reduces the heat loss in the heating unit and improves the energy utilization rate of the combined cooling and heating system. In this way, the development and utilization of clean energy is strengthened, and the low-carbon transformation of energy is promoted through the complementary use of renewable energy and conventional primary energy, which greatly improves the primary energy utilization rate of the entire system and realizes the cascade utilization of energy; it can also provide grid-connected electricity for energy complementation, and the economic benefits and efficiency of the entire system are increased accordingly.

[0003] In the existing combined heat and cold supply system based on clean energy, the gas containing heat will be discharged into the desulfurization tower for desulfurization treatment. The spray used in the desulfurization tower can be recycled and divided into in-tower circulation and out-tower circulation. During the in-tower circulation, although there are stirring blades working overtime in the slurry area, precipitation will still occur at the bottom of the mixed slurry, resulting in uneven slurry mixing, and dirt will accumulate on the surface of the demister during use, all of which will cause the effect of the demister to deteriorate. The demister needs to be cleaned with a spray device. If the cleaning waste water is mixed into the slurry, it will contaminate the slurry, resulting in the demister having to be cleaned when the desulfurization tower is stopped, which delays the operation time of the desulfurization tower and reduces the working efficiency of the desulfurization tower. Summary of the invention

[0004] The purpose of the present invention is to provide a cooling and heating combined supply system based on clean energy to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a cooling and heating combined supply system based on clean energy, the system comprising a gas direct-fired engine, an electric refrigeration centrifuge, a hot water supply heat exchanger and a control system;

[0006] The first branch of the gas direct-fired machine outlet pipe of the gas direct-fired machine is connected to the user's cold and hot water supply pipe, the second branch of the gas direct-fired machine outlet pipe is connected to the heat source inlet pipe of the hot water supply heat exchanger, the heat source return pipe of the hot water supply heat exchanger and the user's cold and hot water return pipe are both connected to the gas direct-fired machine return pipe of the gas direct-fired machine, the electric refrigeration centrifuge outlet pipe of the electric refrigeration centrifuge is connected to the user's cold and hot water supply pipe, the electric refrigeration centrifuge return pipe of the electric refrigeration centrifuge is connected to the user's cold and hot water return pipe, and the hot water supply heat exchanger is also connected to the hot water supply outlet pipe and the hot water supply return pipe

[0007] and auxiliary boilers, cooling towers and gas boiler heating systems;

[0008] The gas boiler heating system comprises a boiler, a boiler water outlet pipe, a boiler water return pipe, a flue gas desulfurization tower, a domestic hot water supply system and a heating system.

[0009] The auxiliary boiler water outlet pipe of the auxiliary boiler is connected to the heat source water inlet pipe, and the auxiliary boiler water return pipe of the auxiliary boiler is connected to the heat source water return pipe.

[0010] The first branch of the cooling tower outlet pipe of the cooling tower is connected to the gas direct-fired machine cooling water inlet pipe of the gas direct-fired machine, the second branch of the cooling tower outlet pipe is connected to the electric refrigeration centrifuge cooling water inlet pipe of the electric refrigeration centrifuge, the first branch of the gas direct-fired machine cooling water return pipe of the gas direct-fired machine is connected to the auxiliary boiler inlet pipe of the auxiliary boiler, the second branch of the gas direct-fired machine cooling water return pipe is connected to the cooling tower return pipe of the cooling tower, the first branch of the electric refrigeration centrifuge cooling water return pipe of the electric refrigeration centrifuge is connected to the auxiliary boiler inlet pipe, and the second branch of the electric refrigeration centrifuge cooling water return pipe is connected to the cooling tower return pipe.

[0011] The user's cold and hot water supply pipes are provided with a primary boosting system and a secondary boosting system, and the primary boosting system and the secondary boosting system are composed of a plurality of boosting pumps.

[0012] The first branch of the boiler water outlet pipe is connected to the domestic hot water supply system, and the second branch of the boiler water outlet pipe is connected to the heating system; the domestic hot water supply system includes a pipeline system formed by a domestic hot water heat source inlet pipe, a water supply heat exchanger, and a domestic hot water heat source return pipe connected in series in sequence, the water supply heat exchanger is also connected to a client water supply pipe and a client return pipe, the client water supply pipe is connected to the hot water supply outlet pipe, the client return pipe is connected to the hot water supply return pipe, the water inlet end of the domestic hot water heat source inlet pipe is connected to the first branch of the boiler water outlet pipe, and the water outlet end of the domestic hot water heat source return pipe is connected to the boiler return pipe.

[0013] The heating system includes a pipeline system formed by a heating heat source inlet pipe, a heating heat exchanger, and a heating heat source return pipe connected in series in sequence. The heating heat exchanger is also connected to an air-conditioning water supply pipe and an air-conditioning water return pipe. The air-conditioning water supply pipe is connected to a user's cold and hot water supply pipe, and the air-conditioning water return pipe is connected to a user's cold and hot water return pipe. The water inlet end of the heating heat source inlet pipe is connected to the second branch of the boiler outlet pipe, and the water outlet end of the heating heat source return pipe is connected to the boiler return pipe.

[0014] The flue gas desulfurization tower includes a tower body, and the interior of the tower body is provided with a slurry area a, a spraying area b, an ascending area c and a smoke outlet from bottom to top in sequence. The slurry area is provided with a slurry stirring device and a sedimentation treatment mechanism arranged up and down, the spraying area a is provided with a slurry spraying device, the ascending area is provided with a demister, an adjusting mechanism and an automatic cleaning mechanism, the outer wall of the tower body is provided with a connected circulating pump and a pipeline, and the slurry area is connected to the slurry spraying device through the pipeline.

[0015] The sedimentation treatment mechanism comprises a lower tower plate, a tower base, a material transfer cavity and a material transfer piece. The bottom of the tower body is provided with a lower tower plate inclined from the periphery to the center. The bottom end of the lower tower plate is provided with a tower base. The inner wall of the tower base is provided with a material transfer cavity. The inner wall of the material transfer cavity is provided with two sets of material transfer pieces that cooperate with each other.

[0016] The material moving member comprises a support ring and a material moving block which are fixedly connected, the material moving block is located on the outer wall of the support ring, the support ring limits the material moving block from rotating along the material moving cavity, and a magnet is provided on the inner wall of the material moving block;

[0017] A through hole 1 is provided at the center of the lower tower plate, and a through hole 2 is symmetrically provided on the inner wall of the lower tower plate, wherein the through hole 1 is located between the through holes 2 on both sides, and the material transfer cavity comprises two symmetrically arranged inner cavity surfaces, and the outer wall of the inner cavity surface is sleeved with a rotatably connected support ring, and the support ring passes through the interior of the through hole 1 and the through hole 2;

[0018] The inner wall of the tower base is symmetrically provided with a power part, and the power part includes a circular plate, two magnets and one rotating shaft. The inner wall of the tower base is provided with a circular plate, and the circular plate is located at the center of the support ring. The inner wall of the circular plate is embedded with two magnets, and the outer wall of the circular plate is provided with one rotating shaft that is fixedly connected;

[0019] One of the material moving parts on the same side cooperates with one of the power parts, and the rotating shafts 1 of the two groups of the power parts are connected by belts. A motor is provided at the bottom of the tower seat, and the output shaft of the motor is connected to one of the rotating shafts 1. The end of the magnet 2 close to the magnet 1 is attracted to the magnet 1;

[0020] The bottom of the tower body is symmetrically provided with a nozzle 1, and when the material moving block passes through the nozzle 1, the medium sprayed by the nozzle 1 passes through the upper surface of the material moving block;

[0021] The automatic cleaning mechanism comprises a second rotating shaft, a first limiting block, a second limiting block, a liquid discharge port, a baffle, a first water baffle, a second water baffle, an upper cleaning spray device and a lower cleaning spray device. The inner wall of the tower body is provided with a second rotating shaft, a first limiting block, a second limiting block and a liquid discharge port. A semicircular baffle is rotatably sleeved on the outer wall of the second rotating shaft. The radius of the baffle is equal to the radius of the inner wall of the tower body. The two ends of the baffle are respectively an e end and an f end. The e end of the baffle is provided with a first water baffle, and the f end of the baffle is provided with a second water baffle. Both the first water baffle and the second water baffle are made of deformable materials. The second limiting block is close to the liquid discharge port.

[0022] The baffle plate includes a retracted state and an open state. When the baffle plate is in the retracted state, the e end is above the f end. When the baffle plate is in the open state, the e end is in contact with the first limit block, the f end is in contact with the second limit block, and the second baffle plate extends into the drain port.

[0023] The upper cleaning spray device is located above the demister, and the lower cleaning spray device is located below the demister. The spray ranges of the upper cleaning spray device and the lower cleaning spray device are both semicircular, and the spray ranges are matched with the baffle in the open state. At least two groups of automatic cleaning mechanisms are provided, and the two groups of automatic cleaning mechanisms are installed at the same height;

[0024] The adjusting mechanism comprises a slide rail, a rotating shaft three, a blade wheel, a circular gear, a rack, a second nozzle and a third nozzle. The inner wall of the tower body is provided with a slide rail and a rotating shaft three which are perpendicular to each other. The rotating shaft three is parallel to the rotating shaft two. A slidably connected rack is provided on the slide rail. A rotatably connected blade wheel is sleeved on one end of the rotating shaft three. A circular gear is sleeved on the other end of the rotating shaft three. The circular gear is meshed with the rack. A push rod is provided at the bottom end of the rack. The push rod passes through the slide rail and extends to the rotation range of the baffle. Nozzle two and nozzle three are provided on the inner wall of the tower body. The nozzle two is located above the blade wheel, and the nozzle three is located below the blade wheel. One adjusting mechanism adjusts one baffle accordingly.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention reuses the water flow after the cold and heat exchange through the waste heat recovery device, reduces the heat loss in the heating unit, and improves the energy utilization rate of the cold and heat combined supply system; during the flue gas desulfurization process, the precipitation in the slurry will accumulate at the center of the lower tower plate, and the material transfer block drives the precipitation in front of it to move along the material transfer cavity. After reaching the height of the nozzle one, the liquid sprayed by the nozzle one will crush the precipitation on the material transfer block, and the precipitation will expand to the surroundings, thereby entering the stirring force concentration point of the slurry stirring device again, and promoting uniform stirring of the slurry; by alternately adjusting the position of the baffles on both sides, the demister is divided into two parts, which are processed successively, and the demister can be cleaned during the spraying process without affecting the normal desulfurization treatment of the flue gas by the flue gas desulfurization tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a composition diagram of a clean energy-based combined cooling and heating system of the present invention;

[0028] Figure 2 is a cross-sectional view of a flue gas desulfurization tower in the present invention;

[0029] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0031] Figure 5 For the present invention Figure 4 A partial enlarged view of point D in the middle;

[0032] Figure 6 It is a truncated diagram of the flue gas desulfurization tower in the present invention;

[0033] In the figure: 1. Gas direct-fired machine; 2. Electric refrigeration centrifuge; 3. Hot water supply heat exchanger; 4. Gas direct-fired machine outlet pipe; 5. User cold and hot water supply pipe; 6. Heat source inlet pipe; 7. Heat source return pipe; 8. User cold and hot water return pipe; 9. Gas direct-fired machine return pipe; 10. Electric refrigeration centrifuge outlet pipe; 11. Electric refrigeration centrifuge return pipe; 12. Hot water supply outlet pipe; 13. Hot water supply return pipe; 14. Auxiliary boiler; 15. Auxiliary boiler outlet pipe; 16. Auxiliary boiler return pipe; 17. Cooling tower; 18. Cooling tower outlet pipe; 19. Gas direct-fired machine cooling water inlet pipe; 20. Electric refrigeration centrifuge cooling water inlet pipe; 21. Gas direct-fired machine cooling water return pipe; 22. Auxiliary boiler inlet pipe; 23. Cooling tower return pipe; 24. Electric refrigeration centrifuge cooling water return pipe; 25. Flue gas desulfurization tower;

[0034] 101. Boiler; 102. Boiler outlet pipe; 103. Boiler return pipe; 104. Domestic hot water heat source inlet pipe; 105. Domestic hot water heat source return pipe; 106. Water supply heat exchanger; 107. Client water supply pipe; 108. Client return pipe; 109. Heating heat source inlet pipe; 110. Heating heat exchanger; 111. Heating heat source return pipe; 112. Air conditioning water supply pipe; 113. Air conditioning water return pipe;

[0035] 201, tower body; 202, slurry spraying device; 203, demister; 204, circulating pump; 205, lower tower plate; 206, tower base; 207, material transfer chamber; 208, support ring; 209, material transfer block; 211, through hole 1; 212, through hole 2; 213, round plate; 214, magnet 2; 215, rotating shaft 1; 216, belt; 217, motor; 218, nozzle 1; 219, rotating Axis 2; 220, limit block 1; 221, limit block 2; 222, drain port; 223, baffle; 224, water baffle 1; 225, water baffle 2; 226, upper cleaning spray device; 227, lower cleaning spray device; 301, slide rail; 302, rotating shaft 3; 303, blade wheel; 304, circular gear; 305, rack; 306, nozzle 2; 307, nozzle 3; 308, push rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example: Figure 1 As shown, the present invention provides a technical solution for a combined cooling and heating system based on clean energy, the system comprising a gas direct-fired engine 1, an electric refrigeration centrifuge 2, a hot water supply heat exchanger 3 and a control system;

[0038] The first branch of the gas direct-fired machine outlet pipe 4 of the gas direct-fired machine 1 is connected to the user's cold and warm water supply pipe 5, the second branch of the gas direct-fired machine outlet pipe 4 is connected to the heat source inlet pipe 6 of the hot water supply heat exchanger 3, the heat source return pipe 7 of the hot water supply heat exchanger 3 and the user's cold and warm water return pipe 8 are both connected to the gas direct-fired machine return pipe 9 of the gas direct-fired machine 1, the electric refrigeration centrifuge outlet pipe 10 of the electric refrigeration centrifuge 2 is connected to the user's cold and warm water supply pipe 5, the electric refrigeration centrifuge return pipe 11 of the electric refrigeration centrifuge 2 is connected to the user's cold and warm water return pipe 8, and the hot water supply heat exchanger 3 is also connected with a hot water supply outlet pipe 12 and a hot water supply return pipe 13

[0039] and auxiliary boiler 14, cooling tower 17 and gas boiler heating system;

[0040] The gas boiler heating system comprises a boiler 101, a boiler water outlet pipe 102, a boiler water return pipe 103, a flue gas desulfurization tower 25, a domestic hot water supply system and a heating system.

[0041] The auxiliary boiler water outlet pipe 15 of the auxiliary boiler 14 is connected to the heat source water inlet pipe 6 , and the auxiliary boiler water return pipe 16 of the auxiliary boiler 14 is connected to the heat source water return pipe 7 .

[0042] The first branch of the cooling tower outlet pipe 18 of the cooling tower 17 is connected to the gas direct-fired machine cooling water inlet pipe 19 of the gas direct-fired machine 1, the second branch of the cooling tower outlet pipe 18 is connected to the electric refrigeration centrifuge cooling water inlet pipe 20 of the electric refrigeration centrifuge 2, the first branch of the gas direct-fired machine cooling water return pipe 21 of the gas direct-fired machine 1 is connected to the auxiliary boiler inlet pipe 22 of the auxiliary boiler 14, the second branch of the gas direct-fired machine cooling water return pipe 21 is connected to the cooling tower return pipe 23 of the cooling tower 17, the first branch of the electric refrigeration centrifuge cooling water return pipe 24 of the electric refrigeration centrifuge 2 is connected to the auxiliary boiler inlet pipe 22, and the second branch of the electric refrigeration centrifuge cooling water return pipe 24 is connected to the cooling tower return pipe 23.

[0043] The user cold and hot water supply pipe 5 is provided with a primary boosting system and a secondary boosting system, and the primary boosting system and the secondary boosting system are composed of a plurality of boosting pumps.

[0044] The first branch of the boiler outlet pipe 102 is connected to the domestic hot water supply system, and the second branch of the boiler outlet pipe 102 is connected to the heating system; the domestic hot water supply system includes a pipeline system formed by a domestic hot water heat source inlet pipe 104, a water supply heat exchanger 106, and a domestic hot water heat source return pipe 105 connected in series in sequence, the water supply heat exchanger 106 is also connected to a client water supply pipe 107 and a client return pipe 108, the client water supply pipe 107 is connected to the hot water supply outlet pipe 12, the client return pipe 108 is connected to the hot water supply return pipe 13, the water inlet end of the domestic hot water heat source inlet pipe 104 is connected to the first branch of the boiler outlet pipe 102, and the water outlet end of the domestic hot water heat source return pipe 105 is connected to the boiler return pipe 103.

[0045] The heating system includes a pipeline system formed by a heating heat source inlet pipe 109, a heating heat exchanger 110, and a heating heat source return pipe 111 connected in series in sequence. The heating heat exchanger 110 is also connected to an air-conditioning water supply pipe 112 and an air-conditioning water return pipe 113. The air-conditioning water supply pipe 112 is connected to a user's cold and hot water supply pipe 5. The air-conditioning water return pipe 113 is connected to a user's cold and hot water return pipe 8. The water inlet end of the heating heat source inlet pipe 109 is connected to the second branch of the boiler outlet pipe 102, and the water outlet end of the heating heat source return pipe 111 is connected to the boiler return pipe 103.

[0046] Figure 2-Figure 6 The flue gas desulfurization tower 25 includes a tower body 201, wherein the interior of the tower body 201 is provided with a slurry area a, a spray area b, an ascending area c and a smoke outlet from bottom to top, wherein the slurry area is provided with a slurry stirring device and a sedimentation treatment mechanism arranged up and down, wherein the spray area a is provided with a slurry spraying device 202, wherein the ascending area is provided with a demister 203, an adjustment mechanism and an automatic cleaning mechanism, wherein the outer wall of the tower body 201 is provided with a connected circulation pump 204 and a pipeline, wherein the slurry area is connected to the slurry spraying device 202 via the pipeline. The stirring blades of the slurry stirring device are arranged to stagger the rotation range of the support ring 208 and the material transfer block 209 to avoid collision during the rotation process.

[0047] The precipitation treatment mechanism includes a lower tower plate 205, a tower base 206, a material transfer chamber 207 and a material transfer member. The bottom of the tower body 201 is provided with a lower tower plate 205 inclined from the periphery to the center, the bottom end of the lower tower plate 205 is provided with a tower base 206, the inner wall of the tower base 206 is provided with a material transfer chamber 207, and the inner wall of the material transfer chamber 207 is provided with two sets of material transfer members that cooperate with each other;

[0048] The material moving member includes a support ring 208 and a material moving block 209 that are fixedly connected. The material moving block 209 is located on the outer wall of the support ring 208. The support ring 208 limits the material moving block 209 from rotating along the material moving cavity 207. A magnet 1 is provided on the inner wall of the material moving block 209.

[0049] A through hole 1 211 is provided at the center of the lower plate 205, and a through hole 212 is symmetrically provided on the inner wall of the lower plate 205, wherein the through hole 1 211 is located between the through holes 212 on both sides, and the material transfer chamber 207 includes two symmetrically arranged inner cavity surfaces, and the outer wall of the inner cavity surface is sleeved with a rotatably connected support ring 208, and the support ring 208 passes through the interior of the through hole 1 211 and the through hole 212;

[0050] The inner wall of the tower base 206 is symmetrically provided with power parts, and the power parts include a circular plate 213, a second magnet 214 and a first rotating shaft 215. The inner wall of the tower base 206 is provided with a circular plate 213, and the circular plate 213 is located at the center of the support ring 208. The inner wall of the circular plate 213 is embedded with a second magnet 214, and the outer wall of the circular plate 213 is provided with a first rotating shaft 215 that is fixedly connected;

[0051] One of the material moving parts on the same side cooperates with one of the power parts, and the rotating shafts 215 of the two groups of the power parts are connected by a belt 216. A motor 217 is provided at the bottom of the tower base 206, and the output shaft of the motor 217 is connected to one of the rotating shafts 215. The end of the second magnet 214 close to the first magnet is attracted to the first magnet.

[0052] The bottom of the tower body 201 is symmetrically provided with a nozzle 218. When the material moving block 209 passes through the nozzle 218, the medium sprayed by the nozzle 218 passes through the upper surface of the material moving block 209.

[0053] The automatic cleaning mechanism includes a second rotating shaft 219, a first limiting block 220, a second limiting block 221, a liquid discharge port 222, a baffle 223, a first water baffle 224, a second water baffle 225, an upper cleaning spray device 226 and a lower cleaning spray device 227. The inner wall of the tower body 201 is provided with a second rotating shaft 219, a first limiting block 220, a second limiting block 221 and a liquid discharge port 222. The outer wall of the second rotating shaft 219 is provided with a rotating sleeve device A semicircular baffle 223 is provided, the radius of the baffle 223 is equal to the inner wall radius of the tower body 201, the two ends of the baffle 223 are end e and end f respectively, the end e of the baffle 223 is provided with a water baffle 1 224, the end f of the baffle 223 is provided with a water baffle 2 225, the water baffle 1 224 and the water baffle 2 225 are both made of deformable materials, and the limit block 221 is close to the drain port 222;

[0054] The baffle 223 includes a retracted state and an open state. When the baffle 223 is in the retracted state, the e end is above the f end. When the baffle 223 is in the open state, the e end is in contact with the limit block 1 220, the f end is in contact with the limit block 221, and the baffle 2 225 extends into the drain port 222.

[0055] The upper cleaning spray device 226 is located above the demister 203, and the lower cleaning spray device 227 is located below the demister 203. The spray ranges of the upper cleaning spray device 226 and the lower cleaning spray device 227 are both semicircular, and the spray ranges are matched with the baffle 223 in the open state. At least two groups of the automatic cleaning mechanism are provided, and the two groups of automatic cleaning mechanisms are installed at the same height;

[0056] The adjusting mechanism comprises a slide rail 301, a rotating shaft 302, a blade wheel 303, a circular gear 304, a rack 305, a second nozzle 306 and a third nozzle 307. The inner wall of the tower body 201 is provided with a slide rail 301 and a rotating shaft 302 which are eccentrically vertical. The rotating shaft 302 is parallel to the rotating shaft 219. A rack 305 which is slidably connected is provided on the slide rail 301. One end of the rotating shaft 302 is provided with a rotating blade wheel 303. The other end of the rotating shaft 302 is provided with a circular Gear 304, the circular gear 304 is meshed with the rack 305, a push rod 308 is provided at the bottom end of the rack 305, the push rod 308 passes through the slide rail 301 and extends to the rotation range of the baffle 223, the inner wall of the tower body 201 is provided with a nozzle 2 306 and a nozzle 3 307, the nozzle 2 306 is located above the blade wheel 303, the nozzle 3 307 is located below the blade wheel 303, and one of the adjustment mechanisms corresponds to adjusting one baffle 223.

[0057] The specific implementation method is as follows: when in use, the gas direct-fired engine 1 and the auxiliary boiler 14 use natural gas as fuel, and the electric refrigeration centrifuge 2 relies on electricity to work. In summer, the gas direct-fired engine 1 and the electric refrigeration centrifuge 2 both provide cooling for users. At this time, the auxiliary boiler 14 is also turned on to provide users with domestic hot water. If the gas direct-fired engine 1 and the electric refrigeration centrifuge 2 have high power during refrigeration, the cooling water return can be injected into the auxiliary boiler 14 to utilize the heat in the cooling water return; in spring and autumn, when there is no need to provide cooling and heating for users, the gas direct-fired engine 1 and the electric refrigeration centrifuge 2 do not need to refrigerate, and the electric refrigeration centrifuge 2 and the auxiliary boiler 14 pipelines can be closed, and the gas direct-fired engine 1 can be used to provide hot water for users. At this time, the gas direct-fired engine outputs water. Pipe 4 is only connected to the heat source water inlet pipe 6, but if the user has a demand for heating, the gas direct-fired engine water outlet pipe 4 can also be connected to the user's cold and hot water supply pipe 5 at the same time to provide heating for the user. At this time, if the heat source of domestic hot water is insufficient, the auxiliary boiler 14 can be turned on to supplement the domestic hot water heat source for the user; in winter, the electric refrigeration centrifuge 2 can be turned off, and the gas direct-fired engine 1 and the auxiliary boiler 14 can be turned on to provide heating and domestic hot water for the user. During actual operation, the system can change the flow in the branch pipe of the gas direct-fired engine water outlet pipe 4 according to the user's needs, and can also adjust the working power of the auxiliary boiler 14 accordingly.

[0058] After the flue gas enters the flue gas desulfurization tower 25 from the smoke inlet of the flue gas desulfurization tower 25, it moves upward along the flue gas desulfurization tower 25, the slurry sprayed by the slurry spraying device 202 is mixed with the flue gas to desulfurize the flue gas, and the flue gas passes through the demister 203 to remove moisture from the flue gas. At the bottom of the flue gas desulfurization tower 25, the slurry stirring device and the sedimentation treatment mechanism stir the slurry, and the output shaft of the motor 217 rotates with one of the rotating shafts 215, and the two rotating shafts 215 are driven to rotate simultaneously through the belt 216. The belt 216 is connected in an "8" shape, so that the rotating shaft 215 on the left rotates clockwise and the rotating shaft 215 on the right rotates counterclockwise.

[0059] The rotating shaft 1 215 drives the circular plate 213 and the magnet 2 214 to rotate synchronously. The magnet 2 214 attracts the magnet 1, thereby driving the magnet 1 and the support ring 208 to rotate. The support ring 208 on the left rotates clockwise, and the support ring 208 on the right rotates counterclockwise. The inner cavity faces the center and position of the rotation of the support ring 208. Because the bottom of the tower body 201 is provided with a lower tower plate 205 inclined from the periphery to the center, the sediment will accumulate at the center of the lower tower plate 205, and the material moving block 209 passes through the lower tower plate 205. When the center of the tower plate 205 is reached, the sediment there is driven to enter the material transfer chamber 207. The material transfer block 209 drives the sediment in front of it to move forward along the material transfer chamber 207. After reaching the height of the nozzle 218, the liquid sprayed by the nozzle 218 breaks the sediment on the material transfer block 209, and the sediment spreads to the surroundings, thereby entering the stirring force concentration point of the slurry stirring device again, promoting uniform stirring of the slurry. The material transfer blocks 209 on the left and right sides will not reach the through hole 211 at the same time, ensuring the normal operation of the equipment.

[0060] The demister 203 can be cleaned during the spraying process, and the nozzle 2 306 sprays high-pressure gas downward to the blade wheel 303. The blade wheel 303 drives the circular gear 304 to rotate through the rotating shaft 302. The circular gear 304 is meshed with the rack 305, driving the rack 305 to move along the left side of the slide rail 301. The rack 305 drives the push rod 308 to move synchronously. During the movement, the push rod 308 pushes the e end of the baffle 223 to rotate downward until the e end contacts the limit block 1 220 and cannot continue to rotate downward. At this time, the limit block 1 220 restricts the baffle 223 below the e end, and the baffle 223 is inclined. The limit block 221 restricts the baffle 223 above the f end. During the rotation of the baffle 223, the water baffle 1 224 and the water baffle 2 225 are aligned with the tower body. 201, it will bend after contacting the inner wall of the tower body 201, and finally the water baffle 1 224 will fit with the inner wall of the tower body 201 to prevent the sewage from passing through the gap between the water baffle 1 224 and the tower body 201. The water baffle 225 enters the drain port 222 due to its own elastic force and the caliber setting of the drain port 222. The upper cleaning spray device 226 and the lower cleaning spray device 227 on the same side of the inclined baffle 223 spray water to clean the baffle 223, and the sewage falls on the baffle 223. At this time, the inner surface of the baffle 223 facing upward is concave, and the sewage flows along the concave surface to the water baffle 225 and the drain port 222, and finally is discharged from the drain port 222 outside the tower. The baffle 223 on the other side is still vertical, and the flue gas moves upward through the baffle 223 on the other side, which does not affect the normal desulfurization treatment of the flue gas by the flue gas desulfurization tower 25. By alternately adjusting the positions of the baffles 223 on both sides, the demister 203 is divided into two left and right parts for processing in sequence.

[0061] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A clean energy-based combined cooling and heating system, characterized by: The system comprises a gas direct-fired engine (1), an electric refrigeration centrifuge (2), a hot water supply heat exchanger (3) and a control system; The first branch of the gas direct-fired engine water outlet pipe (4) of the gas direct-fired engine (1) is connected to the user's cold and hot water supply pipe (5), the second branch of the gas direct-fired engine water outlet pipe (4) is connected to the heat source water inlet pipe (6) of the hot water supply heat exchanger (3), the heat source water return pipe (7) of the hot water supply heat exchanger (3) and the user's cold and hot water return pipe (8) are both connected to the gas direct-fired engine water return pipe (9) of the gas direct-fired engine (1), the electric refrigeration centrifuge water outlet pipe (10) of the electric refrigeration centrifuge (2) is connected to the user's cold and hot water supply pipe (5), the electric refrigeration centrifuge water return pipe (11) of the electric refrigeration centrifuge (2) is connected to the user's cold and hot water return pipe (8), and the hot water supply heat exchanger (3) is also connected to a hot water supply water outlet pipe (12) and a hot water supply water return pipe (13) as well as an auxiliary boiler (14), a cooling tower (17) and a gas boiler heating system; The gas boiler heating system comprises a boiler (101), a boiler water outlet pipe (102), a boiler water return pipe (103), a flue gas desulfurization tower (25), a domestic hot water supply system and a heating system; The flue gas desulfurization tower (25) comprises a tower body (201), wherein a slurry zone a, a spray zone b, an ascending zone c and a smoke outlet are sequentially arranged inside the tower body (201) from bottom to top, the slurry zone is provided with a slurry stirring device and a sedimentation treatment mechanism arranged up and down, the spray zone a is provided with a slurry spraying device (202), the ascending zone is provided with a demister (203), an adjustment mechanism and an automatic cleaning mechanism, the outer wall of the tower body (201) is provided with a circulating pump (204) and a pipeline connected thereto, and the slurry zone is connected to the slurry spraying device (202) via the pipeline.

2. A clean energy-based combined cooling and heating system according to claim 1, characterized in that: The precipitation treatment mechanism comprises a lower tower plate (205), a tower base (206), a material transfer cavity (207) and a material transfer piece. The bottom of the tower body (201) is provided with a lower tower plate (205) inclined from the periphery to the center. The bottom end of the lower tower plate (205) is provided with a tower base (206). The inner wall of the tower base (206) is provided with a material transfer cavity (207). The inner wall of the material transfer cavity (207) is provided with two groups of material transfer pieces that cooperate with each other. The material moving member comprises a fixedly connected support ring (208) and a material moving block (209); the material moving block (209) is located on the outer wall of the support ring (208); the support ring (208) limits the material moving block (209) from rotating along the material moving cavity (207); and a magnet is provided on the inner wall of the material moving block (209); A through hole 1 (211) is provided at the center of the lower tower plate (205), and a through hole 2 (212) is symmetrically provided on the inner wall of the lower tower plate (205), wherein the through hole 1 (211) is located between the through holes 2 (212) on both sides, and the material transfer chamber (207) comprises two symmetrically arranged inner cavity surfaces, and the outer walls of the inner cavity surfaces are sleeved with a rotatably connected support ring (208), and the support ring (208) passes through the interior of the through hole 1 (211) and the through hole 2 (212); The inner wall of the tower base (206) is symmetrically provided with a power part, the power part comprising a circular plate (213), a second magnet (214) and a first rotating shaft (215); the inner wall of the tower base (206) is provided with a circular plate (213), the circular plate (213) is located at the center of the support ring (208), the inner wall of the circular plate (213) is embedded with a second magnet (214), and the outer wall of the circular plate (213) is provided with a first rotating shaft (215) which is fixedly connected; One of the material moving parts on the same side cooperates with one of the power parts, and the rotating shafts (215) of the two groups of the power parts are connected by a belt (216). A motor (217) is provided at the bottom of the tower seat (206), and the output shaft of the motor (217) is connected to one of the rotating shafts (215). The end of the second magnet (214) close to the first magnet is attracted to the first magnet. A nozzle 1 (218) is symmetrically arranged at the bottom of the tower body (201). When the material moving block (209) passes through the nozzle 1 (218), the medium sprayed by the nozzle 1 (218) passes through the upper surface of the material moving block (209).

3. A clean energy-based combined cooling and heating system according to claim 2, characterized in that: The automatic cleaning mechanism comprises a second rotating shaft (219), a first limiting block (220), a second limiting block (221), a liquid discharge port (222), a baffle (223), a first water baffle (224), a second water baffle (225), an upper cleaning spray device (226) and a lower cleaning spray device (227); the inner wall of the tower body (201) is provided with a second rotating shaft (219), a first limiting block (220), a second limiting block (221) and a liquid discharge port (222); the outer wall of the second rotating shaft (219) is provided with a first limiting block (220), a second limiting block (221) and a liquid discharge port (222); The movable sleeve is provided with a semicircular baffle (223), the radius of the baffle (223) is equal to the inner wall radius of the tower body (201), the two ends of the baffle (223) are respectively end e and end f, the end e of the baffle (223) is provided with a water baffle 1 (224), the end f of the baffle (223) is provided with a water baffle 2 (225), the water baffle 1 (224) and the water baffle 2 (225) are both made of deformable materials, and the second limit block (221) is close to the drain port (222); The baffle plate (223) includes a retracted state and an open state. When the baffle plate (223) is in the retracted state, the end e is above the end f. When the baffle plate (223) is in the open state, the end e is in contact with the first limit block (220), the end f is in contact with the second limit block (221), and the second baffle plate (225) extends into the drain port (222).

4. The clean energy-based combined cooling and heating system according to claim 3, characterized in that: The upper cleaning spray device (226) is located above the demister (203), and the lower cleaning spray device (227) is located below the demister (203). The spray ranges of the upper cleaning spray device (226) and the lower cleaning spray device (227) are both semicircular, and the spray ranges are coordinated with the baffle (223) in the open state. At least two groups of automatic cleaning mechanisms are arranged, and the two groups of automatic cleaning mechanisms are installed at the same height.

5. The clean energy-based combined cooling and heating system according to claim 4, characterized in that: The regulating mechanism comprises a slide rail (301), a rotating shaft (302), a blade wheel (303), a circular gear (304), a rack (305), a second nozzle (306) and a third nozzle (307); the inner wall of the tower body (201) is provided with a slide rail (301) and a rotating shaft (302) which are eccentrically vertical; the rotating shaft (302) is parallel to the rotating shaft (219); a rack (305) which is slidably connected is provided on the slide rail (301); one end of the rotating shaft (302) is sleeved with a blade wheel (303) which is rotatably connected; the other end of the rotating shaft (302) is sleeved with a A circular gear (304) is meshed with the rack (305); a push rod (308) is provided at the bottom end of the rack (305); the push rod (308) passes through the slide rail (301) and extends to the rotation range of the baffle (223); a second nozzle (306) and a third nozzle (307) are provided on the inner wall of the tower body (201); the second nozzle (306) is located above the blade wheel (303); the third nozzle (307) is located below the blade wheel (303); and one of the adjustment mechanisms correspondingly adjusts one baffle (223).

6. The clean energy-based combined cooling and heating system according to claim 1, characterized in that: The auxiliary boiler water outlet pipe (15) of the auxiliary boiler (14) is connected to the heat source water inlet pipe (6), and the auxiliary boiler water return pipe (16) of the auxiliary boiler (14) is connected to the heat source water return pipe (7).

7. A clean energy-based combined cooling and heating system according to claim 6, characterized in that: The first branch of the cooling tower outlet pipe (18) of the cooling tower (17) is connected to the gas direct-fired machine cooling water inlet pipe (19) of the gas direct-fired machine (1), the second branch of the cooling tower outlet pipe (18) is connected to the electric refrigeration centrifuge cooling water inlet pipe (20) of the electric refrigeration centrifuge (2), the first branch of the gas direct-fired machine cooling water return pipe (21) of the gas direct-fired machine (1) is connected to the auxiliary boiler inlet pipe (22) of the auxiliary boiler (14), the second branch of the gas direct-fired machine cooling water return pipe (21) is connected to the cooling tower return pipe (23) of the cooling tower (17), the first branch of the electric refrigeration centrifuge cooling water return pipe (24) of the electric refrigeration centrifuge (2) is connected to the auxiliary boiler inlet pipe (22), and the second branch of the electric refrigeration centrifuge cooling water return pipe (24) is connected to the cooling tower return pipe (23).

8. The clean energy-based combined cooling and heating system according to claim 7, characterized in that: The user cold and hot water supply pipe (5) is provided with a primary pressure boosting system and a secondary pressure boosting system, and the primary pressure boosting system and the secondary pressure boosting system are composed of a plurality of pressure boosting pumps.

9. A clean energy-based combined cooling and heating system according to claim 8, characterized in that: The first branch of the boiler water outlet pipe (102) is connected to the domestic hot water supply system, and the second branch of the boiler water outlet pipe (102) is connected to the heating system; the domestic hot water supply system comprises a pipeline system formed by a domestic hot water heat source water inlet pipe (104), a water supply heat exchanger (106), and a domestic hot water heat source water return pipe (105) connected in series in sequence; the water supply heat exchanger (106) is also connected to a client water supply pipe (107) and a client water return pipe (108); the client water supply pipe (107) is connected to a hot water supply water outlet pipe (12); the client water return pipe (108) is connected to a hot water supply water return pipe (13); the water inlet end of the domestic hot water heat source water inlet pipe (104) is connected to the first branch of the boiler water outlet pipe (102); and the water outlet end of the domestic hot water heat source water return pipe (105) is connected to the boiler water return pipe (103).

10. A clean energy-based combined cooling and heating system according to claim 9, characterized in that: The heating system comprises a pipeline system formed by a heating heat source water inlet pipe (109), a heating heat exchanger (110), and a heating heat source water return pipe (111) connected in series in sequence; the heating heat exchanger (110) is also connected to an air conditioning water supply pipe (112) and an air conditioning water return pipe (113); the air conditioning water supply pipe (112) is connected to a user's cold and hot water supply pipe (5); the air conditioning water return pipe (113) is connected to a user's cold and hot water return pipe (8); the water inlet end of the heating heat source water inlet pipe (109) is connected to a second branch of the boiler water outlet pipe (102); and the water outlet end of the heating heat source water return pipe (111) is connected to the boiler water return pipe (103).

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