Waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system

Abstract

The invention discloses a waste heat recovery and heat storage type ice cold storage energy-saving solid adsorption rotary dehumidification system, including an adsorption rotary dehumidifier, a first air filter, a front surface cooler, an air handling fan, a rear surface cooler, a second air filter, a regeneration fan, a phase change waste heat recovery heat storage device, an auxiliary electric heater, a refrigeration compressor, a condenser, a condensing fan, a thermal expansion valve, an evaporator, an ice melting tank, an intermediate heat exchanger, a first refrigerant delivery pump, a second refrigerant delivery pump, an air conditioning cold water delivery pump, a high-temperature and high-pressure refrigeration steam delivery pipe, a heat storage condensation connecting pipe, a high-pressure condensate delivery pipe, a low-pressure throttling refrigerant delivery pipe, a low-pressure return air pipe, a first low-temperature refrigerant delivery pipe, a refrigerant return pipe, a second low-temperature refrigerant delivery pipe, a refrigerant circulation pipe, a first air conditioning cold water delivery pipe, a first air conditioning return water delivery pipe, a second air conditioning cold water delivery pipe, and a second air conditioning return water delivery pipe. It can recover waste heat and combine heat storage and cold storage to optimize the utilization of power resources.

Description

Technical Field

[0001] The invention relates to the technical field of waste heat energy-saving dehumidification, and in particular to a waste heat recovery heat storage type ice cold storage energy-saving solid adsorption rotary dehumidification system. Background Art

[0002] Compared with refrigeration dehumidification, solid adsorption rotary dehumidification technology cannot effectively dehumidify in low temperature and low humidity environments, while solid adsorption rotary dehumidification is not limited by low temperature and low humidity, and can meet the ultra-low dew point requirements of -70°C. It is widely used in ultra-low dew point places such as medicine, optical instruments, microelectronics, chips, and lithium battery manufacturing. Solid adsorption rotary dehumidification uses adsorption materials to absorb moisture. After the adsorption materials absorb moisture, they evaporate the moisture through heating to obtain the adsorption performance for regeneration and recycling. Solid adsorption rotary dehumidification technology is usually used in combination with refrigeration dehumidification technology. On the one hand, it is initially dehumidified by refrigeration, and then dehumidified by the solid adsorption rotary wheel. The purpose is to reduce the wet load of the solid adsorption rotary wheel to improve the use efficiency of the solid adsorption rotary wheel. On the other hand, the dehumidified air passing through the solid adsorption rotary wheel needs to be further cooled to meet the process requirements of the drying room. The heating and cooling functions of the solid adsorption rotary dehumidification are the main energy consumption of the solid adsorption rotary dehumidification, which processes 15,000 m3 of air per hour. 3 The adsorption rotary dehumidifier needs to be equipped with a 70kw air heater and a 60kw refrigeration unit. The adsorption rotary dehumidifier is a high-energy consumption, high-load, and high-electricity-cost equipment, which accounts for a large part of the product cost. Since the adsorption rotary dehumidifier equipment is an industrial production supporting device, its operating time is during the peak power period, which increases the peak power load on the power grid. Summary of the invention

[0003] The technical problem solved by the present invention is: to propose a phase change waste heat recovery and heat storage type ice storage energy-saving solid adsorption rotary dehumidification system that recovers waste heat and combines it with heat storage and cold storage to realize the time-space transfer of power load, utilizes the valley power period to store heat and cold, and operates the equipment during the peak power period, so as to save electricity bills, shift peaks and fill valleys, and optimize the utilization of power resources.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a waste heat recovery and heat storage type ice storage and energy-saving solid adsorption rotary dehumidification system, including an adsorption rotary dehumidifier, a first air filter, a front surface cooler, an air handling fan, a rear surface cooler, a second air filter, a regeneration fan, a phase change waste heat recovery heat storage device, an auxiliary electric heater, a refrigeration compressor, a condenser, a condensing fan, a thermal expansion valve, an evaporator, an ice melting tank, an intermediate heat exchanger, a first refrigerant delivery pump, a second refrigerant delivery pump, an air conditioning cold water delivery pump, a high-temperature and high-pressure refrigeration steam delivery pipe, a heat storage condensation connecting pipe, a high-pressure condensate delivery pipe, a low-pressure throttling refrigerant delivery pipe, a low-pressure return air pipe, a first low-temperature refrigerant delivery pipe, a refrigerant return pipe, a second low-temperature refrigerant delivery pipe, a refrigerant circulation pipe, a first air conditioning cold water delivery pipe, a first air conditioning return water delivery pipe, a second air conditioning cold water delivery pipe, and a second air conditioning return water delivery pipe;

[0005] The air inlet of the L-shaped guide bucket of the adsorption rotary dehumidifier is connected to the air outlet of the front surface cooler, and the air outlet of the first air filter is connected to the air inlet of the front surface cooler; the air handling fan is installed in the connecting pipe between the air inlet of the L-shaped guide bucket and the air outlet of the front surface cooler; the rear surface cooler is installed at the air outlet of the L-shaped guide bucket of the adsorption rotary dehumidifier; the auxiliary electric heater is installed at the air outlet of the phase change recovery waste heat storage device, and the air outlet of the phase change recovery waste heat storage device is connected to the adsorption rotary dehumidifier. The air inlet of the triangular guide bucket of the wheel dehumidifier; the refrigeration compressor is connected to the heat medium inlet pipe of the phase change recovery waste heat storage device through the high-temperature and high-pressure refrigeration steam delivery pipe, and the regeneration fan is installed at the air inlet of the phase change recovery waste heat storage device, and the regeneration fan is located between the phase change recovery waste heat storage device and the second air filter; the heat medium outlet pipe of the phase change recovery waste heat storage device is connected to the condenser through the heat storage condensation connecting pipe, and the condensation fan is installed on the windward end face of the condenser, and the condenser is condensed through the high-pressure condensate The delivery pipe is connected to the thermal expansion valve, and the thermal expansion valve is connected to the evaporator through the low-pressure throttling refrigerant delivery pipe; the evaporator is connected to the refrigeration compressor through the low-pressure return air pipe; the evaporator is connected to the main liquid inlet pipe of the ice-melting tank through the first low-temperature refrigerant delivery pipe, and the collecting return pipe of the ice-melting tank is connected to the evaporator through the refrigerant return pipe, and the first refrigerant delivery pump is arranged on the first low-temperature refrigerant delivery pipe; the ice-melting tank is connected to the intermediate heat exchanger through the second low-temperature refrigerant delivery pipe, and the The second refrigerant delivery pump is arranged on the second low-temperature refrigerant delivery pipe; the intermediate heat exchanger is connected to the ice-melting tank through the refrigerant circulation pipe, the intermediate heat exchanger is connected to the front surface cooler through the first air-conditioning return water delivery pipe, the intermediate heat exchanger is connected to the rear surface cooler through the second air-conditioning return water delivery pipe, the intermediate heat exchanger is connected to the air-conditioning cold water delivery pump, the air-conditioning cold water delivery pump is connected to the front surface cooler through the first air-conditioning cold water delivery pipe, and the air-conditioning cold water delivery pump is connected to the rear surface cooler through the second air-conditioning cold water delivery pipe.

[0006] In one embodiment, the phase change waste heat recovery heat storage device includes a box body and a phase change heat storage device, the air inlet of the phase change waste heat recovery heat storage device is arranged at the top of the box body, and the air outlet of the phase change waste heat recovery heat storage device is arranged at the bottom of the box body; the phase change heat storage device is arranged in the box body, and the phase change heat storage device includes a heat medium inlet pipe, a heat medium outlet pipe, a plurality of liquid distribution pipes, a plurality of liquid collecting pipes and a plurality of phase change heat storage plates arranged side by side, and a ventilation grid groove is formed between two adjacent phase change heat storage plates, and the inlet and outlet of the ventilation grid groove are arranged in the up and down direction, and the phase change heat storage plate includes a left medium cavity plate, a right medium cavity plate, a left rectangular frame, a right rectangular frame and A hot runner plate, wherein the left rectangular frame is sealedly connected to the left medium cavity plate and the hot runner plate respectively, the left rectangular frame, the left medium cavity plate and the hot runner plate are enclosed to form a left chamber, the right rectangular frame is sealedly connected to the right medium cavity plate and the hot runner plate respectively, the right rectangular frame, the right medium cavity plate and the hot runner plate are enclosed to form a right chamber, the left chamber and the right chamber are respectively filled with heat storage medium; a heat medium flow channel is provided in the hot runner plate, one end of the heat medium flow channel is connected to the liquid distributor, the liquid distributor is connected to the heat medium inlet pipe, the other end of the heat medium flow channel is connected to the liquid collector, and the liquid collector is connected to the heat medium outlet pipe.

[0007] In one embodiment, the hot runner plate includes a left-facing concave-convex cavity flow plate and a right-facing concave-convex cavity flow plate that are sealed and connected, and the left-facing concave-convex cavity flow plate and the right-facing concave-convex cavity flow plate are respectively provided with recessed portions, and the recessed portions of the left-facing concave-convex cavity flow plate and the recessed portions on the right-facing concave-convex cavity flow plate are arranged opposite to each other to form the heat medium flow channel, the left-facing rectangular frame is sealed and connected to the left-facing concave-convex cavity flow plate, and the right-facing rectangular frame is sealed and connected to the right-facing concave-convex cavity flow plate.

[0008] In one embodiment, a left-directed concave cavity is provided on the left-directed medium cavity plate, and the left-directed concave cavity is in surface contact with the recessed portion on the left-directed concave-convex cavity flow channel plate; and / or a right-directed concave cavity is provided on the right-directed medium cavity plate, and the right-directed concave cavity is in surface contact with the recessed portion on the right-directed concave-convex cavity flow channel plate.

[0009] In one embodiment, the phase change heat storage device further includes a plurality of locking bolts and a plurality of annular gaskets, wherein the locking bolts penetrate each of the phase change heat storage plates, an annular gasket is provided between two adjacent phase change heat storage plates, the annular gasket is sleeved on the locking bolts, and the annular gasket is used to maintain the spacing between the two adjacent phase change heat storage plates so that the ventilation grille is formed between the two adjacent phase change heat storage plates.

[0010] In one embodiment, the box body is a sandwich structure, and the sandwich space of the sandwich structure is filled with a thermal insulation component.

[0011] In one embodiment, the ice-forming and ice-melting trough includes a double U-shaped bellows array assembly, and the double U-shaped bellows array assembly includes a plurality of double U-shaped bellows units. The double U-shaped bellows unit includes a liquid inlet shunt pipe, a parallel return pipe, a shunt pipe liquid inlet injection pipe, a secondary return collection pipe and a plurality of pipe structure units. The parallel return pipe is connected to the secondary return collection pipe, and the liquid inlet shunt pipe is connected to the shunt pipe liquid inlet injection pipe. The plurality of pipe structure units are arranged in a linear array along a first direction. The pipe structure unit includes an inner ring U-shaped bellows and an outer ring U-shaped bellows. The inner ring U-shaped bellows is arranged in a U-shaped ring of the outer ring U-shaped bellows. The left side pipe end of the inner ring U-shaped bellows and the right side pipe end of the outer ring U-shaped bellows are respectively connected to the liquid inlet shunt pipe, and the right side pipe end of the inner ring U-shaped bellows and the left side pipe end of the outer ring U-shaped bellows are respectively connected to the parallel return pipe.

[0012] In one embodiment, the ice-melting trough also includes a primary shunt supply pipe, a primary reflux collecting pipe, a main liquid inlet pipe connected to the primary shunt supply pipe, and a collecting reflux pipe connected to the primary reflux collecting pipe. There are multiple double U-shaped corrugated pipe units, and the multiple double U-shaped corrugated pipe units are arranged in a linear array along a second direction, and the second direction is perpendicular to the first direction. Each of the shunt pipe liquid inlet injection pipes is respectively connected to the primary shunt supply pipe, and each of the secondary reflux collecting pipes is respectively connected to the primary reflux collecting pipe.

[0013] In one embodiment, the inner ring U-shaped bellows has a plurality of first large diameter sections arranged at intervals, and the outer ring U-shaped bellows has a plurality of second large diameter sections arranged at intervals.

[0014] In one embodiment, the ice forming and melting trough further comprises a container, wherein the container comprises a top plate and a storage tank having an opening at the top, wherein the top plate is connected to the storage tank to close the opening, and the double U-shaped bellows array assembly is located in the storage tank.

[0015] The beneficial effects of the present invention are as follows: the waste heat recovery and heat storage type ice storage energy-saving solid adsorption rotary dehumidification system has a novel structure. By adopting the heat storage and ice storage technology, the high-energy-consuming adsorption rotary dehumidification station can be operated during the off-peak period, which can save operating electricity costs, and the peak shifting and valley filling of valley electricity can be utilized to optimize the power resources of the power grid and achieve energy conservation and emission reduction effects; by adopting the phase change waste heat recovery technology, the heat in the high-temperature and high-pressure refrigerant gas of the refrigeration machine is recovered and used for the desorption and regeneration of the adsorption medium cylinder of the adsorption rotary dehumidifier after adsorption of moisture, which can reduce the energy consumption of the adsorption rotary dehumidifier, reduce the cost of use, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a simplified schematic diagram of the structure of a waste heat recovery and heat storage type ice cold storage energy-saving solid adsorption rotary dehumidification system according to the first embodiment of the present invention;

[0018] Figure 2 It is a simplified schematic diagram of the structure of the ice forming and melting trough according to the first embodiment of the present invention;

[0019] Figure 3 It is a front view of a double U-shaped bellows array assembly in an ice forming and melting trough according to the first embodiment of the present invention;

[0020] Figure 4 It is a top view of a double U-shaped bellows array assembly in an ice forming and melting trough according to the first embodiment of the present invention;

[0021] Figure 5 It is a side view of a pipe structure unit in an ice forming and melting tank according to the first embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the internal structure of the phase change waste heat recovery heat storage device according to the first embodiment of the present invention Figure 1 ;

[0023] Figure 7 Schematic diagram of the internal structure of the phase change waste heat recovery heat storage device according to the first embodiment of the present invention Figure 2 ;

[0024] Figure 8 for Figure 7 The enlarged view of point A in the middle;

[0025] Fig. 9 for Figure 7 The enlarged view of point B in the middle;

[0026] Fig.10 It is a cross-sectional view of a phase change heat storage plate in a phase change waste heat recovery heat storage device according to Embodiment 1 of the present invention;

[0027] Fig.11 for Fig.10 Enlarged view of point C in the middle.

[0028] Description of Figure Numbers:

[0029] st1, adsorption wheel dehumidifier; st2, first air filter; st3, front surface cooler; st4, air handling fan; st5, rear surface cooler; st6, second air filter; st7, regeneration fan; st8, phase change recovery waste heat storage device; st9, auxiliary electric heater; st10, refrigeration compressor; st11, condenser; st12, condensing fan; st13, thermal expansion valve; st14, evaporator; st15, ice melting tank; st16, intermediate heat exchanger;

[0030] stb1, first refrigerant delivery pump; stb2, second refrigerant delivery pump; stb3, air conditioning cold water delivery pump;

[0031] stg1, high-temperature and high-pressure refrigeration steam delivery pipe; stg2, heat storage condensation connecting pipe; stg3, high-pressure condensate delivery pipe; stg4, low-pressure throttling refrigerant delivery pipe; stg4a, low-pressure return air pipe; stg5, first low-temperature refrigerant delivery pipe; stg6, second low-temperature refrigerant delivery pipe; stg7, refrigerant circulation pipe; stg8, first air-conditioning cold water delivery pipe; stg9, first air-conditioning return water delivery pipe; stg10, second air-conditioning cold water delivery pipe; stg11, second air-conditioning return water delivery pipe; stg12, refrigerant return pipe;

[0032] 11. Double U-shaped bellows array assembly; 111. Double U-shaped bellows unit; 1111. Liquid inlet shunt pipe; 1112. Parallel reflux pipe; 1113. Shutter pipe liquid inlet injection pipe; 1114. Secondary reflux collecting pipe; 1115. Pipe structure unit; 11151. Inner ring U-shaped bellows; 111511. First large diameter section; 11152. Outer ring U-shaped bellows; 111521. Second large diameter section; 112. Primary shunt liquid supply pipe; 113. Primary reflux collecting pipe; 114. Main liquid inlet pipe; 115. Collecting reflux pipe; 12. Container; 121. Top plate; 122. Storage tank; 131. Support beam; 132. Hanging ear; 14. Insulation layer;

[0033] 21. Box; 213. Insulation; 214. Rectangular insulation box; 215. Cone insulation top; 216. Cone insulation bottom; 217. Ear seat; 22. Phase change heat storage; 221. Heat medium inlet pipe; 222. Heat medium outlet pipe; 223. Liquid distributor; 224. Liquid collector; 225. Phase change heat storage plate; 2251. Left medium cavity plate; 22511. Left concave cavity; 2252. Right medium cavity plate; 22521. Right concave cavity; 2253. Left medium cavity plate; 2254. Right concave cavity; 2255. Left medium cavity plate; 2256. Right medium cavity plate; 2257. Right concave cavity; 2258. Left medium cavity plate; 2259. Left medium cavity plate; 226. Right medium cavity plate; 227. Left medium cavity plate; 228. Right medium cavity plate; 229. Left medium cavity plate; 229. Right medium cavity plate; 229. Left medium cavity plate; 229. Rectangular frame; 2254, right rectangular frame; 2255, hot runner plate; 22551, heat medium flow channel; 22552, left concave-convex cavity flow plate; 22553, right concave-convex cavity flow plate; 22554, recessed portion; 2256, left chamber; 2257, right chamber; 226, ventilation grille; 227, locking bolt; 228, annular gasket; 2291, left sealing plate; 2292, left edging seal; 2293, right sealing plate; 2294, right edging seal. DETAILED DESCRIPTION

[0034] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

[0035] 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.

[0036] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0038] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or and solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example

[0040] Please refer to Figures 1 to 11 , Embodiment 1 of the present invention is: Figure 1 As shown, the waste heat recovery and heat storage type ice storage energy-saving solid adsorption rotary dehumidification system includes an adsorption rotary dehumidifier st1, a first air filter st2, a front surface cooler st3, an air handling fan st4, a rear surface cooler st5, a second air filter st6, a regeneration fan st7, a phase change waste heat recovery heat storage st8, an auxiliary electric heater st9, a refrigeration compressor st10, a condenser st11, a condensing fan st12, a thermal expansion valve st13, an evaporator st14, an ice-melting tank st15, an intermediate heat exchanger st16, a first refrigerant delivery pump stb1, The second refrigerant delivery pump stb2, the air conditioning cold water delivery pump stb3, the high-temperature and high-pressure refrigeration steam delivery pipe stg1, the heat storage condensation connecting pipe stg2, the high-pressure condensate delivery pipe stg3, the low-pressure throttling refrigerant delivery pipe stg4, the low-pressure return air pipe stg4a, the first low-temperature refrigerant delivery pipe stg5, the refrigerant return pipe stg12, the second low-temperature refrigerant delivery pipe stg6, the refrigerant circulation pipe stg7, the first air conditioning cold water delivery pipe stg8, the first air conditioning return water delivery pipe stg9, the second air conditioning cold water delivery pipe stg10, the second air conditioning return water delivery pipe stg11;

[0041] The air inlet of the L-shaped guide bucket of the adsorption rotary dehumidifier st1 is connected to the air outlet of the front surface cooler st3, and the air outlet of the first air filter st2 is connected to the air inlet of the front surface cooler st3; the air handling fan st4 is installed in the connecting pipe between the air inlet of the L-shaped guide bucket and the air outlet of the front surface cooler st3. The air inlet of the air handling fan st4 draws the air that needs to be dehumidified from the air outlet of the front surface cooler st3 after being filtered by the first air filter st2. The air that needs to be dehumidified is filtered by the first air filter st2 and then passes through the front surface cooler st3. The air that needs to be dehumidified is cooled by the 5°C air-conditioning water circulating in the front surface cooler st3, and the air that needs to be dehumidified is preliminarily condensed and dehumidified. Then, it enters the adsorption medium cylinder of the adsorption rotary dehumidifier st1 through the air inlet of the L-shaped guide bucket, and the adsorption medium cylinder further adsorbs the remaining moisture that has not been condensed and removed by the front surface cooler st3.

[0042] The rear surface cooler st5 is installed at the air outlet of the L-shaped guide bucket of the adsorption rotary dehumidifier st1 to further cool the dry air treated by the adsorption medium cylinder to meet the process temperature of the air-conditioned drying room;

[0043] The auxiliary electric heater st9 is installed at the air outlet of the phase change waste heat recovery heat storage st8. When the output air temperature of the phase change waste heat recovery heat storage st8 does not reach 110°C to 120°C, the temperature can be further heated by the auxiliary electric heater st9; the air outlet of the phase change waste heat recovery heat storage st8 is connected to the air inlet of the triangular guide bucket of the adsorption rotary dehumidifier st1, and the auxiliary electric heater st9 heats the air further heated by the phase change waste heat recovery heat storage st8 to 110°C to 120°C, so that the moisture adsorbed by the adsorption medium cylinder is evaporated by heat, and the ability of the adsorption medium cylinder to adsorb moisture is regenerated, thereby achieving the ability of continuous use in circulation;

[0044] The exhaust gas of the refrigeration compressor st10 is connected to the heat medium inlet pipe 221 of the phase change recovery waste heat storage device st8 through the high-temperature and high-pressure refrigeration steam delivery pipe stg1. Specifically, the heat storage temperature of the phase change recovery waste heat storage device st8 depends on the exhaust gas temperature of the refrigeration compressor st10. The conventional standard of the exhaust gas temperature of the refrigeration compressor st10 is 110°C to 120°C. The exhaust gas of the refrigeration compressor st10 is input to the heat medium inlet pipe 221 of the phase change recovery waste heat storage device st8 through the high-temperature and high-pressure refrigeration steam delivery pipe stg1, and then enters the phase change heat storage device 22 of the phase change recovery waste heat storage device st8. The heat storage medium in the phase change heat storage device 22 absorbs heat and the temperature rises. When the temperature rise reaches 80°C to 90°C, a phase change occurs, and the solid phase changes to liquid. The absorbed heat is stored in the form of latent heat.

[0045] The regeneration fan st7 is installed at the air inlet of the phase change waste heat recovery heat storage st8, and the regeneration fan st7 is located between the phase change waste heat recovery heat storage st8 and the second air filter st6, so that the air sucked by the regeneration fan st7 enters the phase change waste heat recovery heat storage st8 after being filtered by the second air filter st6, so as to keep the phase change waste heat recovery heat storage st8 from being polluted by suspended particles in the ambient air; when the regeneration fan st7 starts working, it sucks air from the environment, filters it through the second air filter st6 and enters the phase change waste heat recovery heat storage st8, so that the temperature of the 18℃~25℃ ambient air rises to 60℃~70℃, and then enters the auxiliary electric heater st9 for additional heating, so that the air entering the adsorption medium cylinder reaches 110℃~120℃, so that the water adsorbed by the adsorption medium cylinder evaporates;

[0046] The heat medium outlet pipe 222 of the phase change recovery waste heat storage device st8 is connected to the condenser st11 through the heat storage condensation connecting pipe stg2, the condensing fan st12 is installed on the windward end face of the condenser st11, the condenser st11 is connected to the thermal expansion valve st13 through the high-pressure condensate delivery pipe stg3, and the thermal expansion valve st13 is connected to the evaporator st14 through the low-pressure throttling refrigerant delivery pipe stg4; the condenser st11 further cools and liquefies the exhaust gas of the refrigeration compressor st10 that has absorbed heat but not completely liquefied in the phase change recovery waste heat storage device st8, and this process belongs to an isobaric cooling process; the exhaust gas of the refrigeration compressor st10 is the refrigerant of the refrigeration system Steam, the refrigerant after the exhaust gas of the refrigeration compressor st10 is liquefied is output from the condenser st11, enters the thermal expansion valve st13 through the high-pressure condensate delivery pipe stg3 for decompression and throttling, and after decompression and throttling, enters the evaporator st14 through the low-pressure throttling refrigerant delivery pipe stg4. The liquefied refrigerant entering the evaporator st14 evaporates into steam, and the evaporation process absorbs the heat in the refrigerant in the evaporator st14. The refrigerant is a mixture of ethylene glycol and water, wherein the ethylene glycol content is 25% (w / w). The evaporator st14 is connected to the refrigeration compressor st10 through the low-pressure return gas pipe stg4a. After the liquefied refrigerant is completely evaporated, it flows back to the refrigeration compressor st10 through the low-pressure return gas pipe stg4a to enter the next compression cycle;

[0047] The evaporator st14 is connected to the main liquid inlet pipe 114 of the ice-melting tank st15 through the first low-temperature refrigerant delivery pipe stg5, the collecting return pipe 115 of the ice-melting tank st15 is connected to the evaporator st14 through the refrigerant return pipe stg12, and the first refrigerant delivery pump stb1 is arranged on the first low-temperature refrigerant delivery pipe stg5; the ice-melting tank st15 is connected to the intermediate heat exchanger st16 through the second low-temperature refrigerant delivery pipe stg6, and the second refrigerant delivery pump stb2 is arranged on the second low-temperature refrigerant delivery pipe stg6; the intermediate heat exchanger st16 is connected to the intermediate heat exchanger st16 through the second low-temperature refrigerant delivery pipe stg6. The refrigerant circulation pipe stg7 is connected to the ice-melting trough st15, the intermediate heat exchanger st16 is connected to the front surface cooler st3 through the first air-conditioning return water delivery pipe stg9, the intermediate heat exchanger st16 is connected to the rear surface cooler st5 through the second air-conditioning return water delivery pipe stg11, the intermediate heat exchanger st16 is connected to the air-conditioning cold water delivery pump stb3, the air-conditioning cold water delivery pump stb3 is connected to the front surface cooler st3 through the first air-conditioning cold water delivery pipe stg8, and the air-conditioning cold water delivery pump stb3 is connected to the rear surface cooler st5 through the second air-conditioning cold water delivery pipe stg10.

[0048] Please combine Figures 2 to 5 The ice-melting tank st15 includes a double U-shaped bellows array assembly 11, and the double U-shaped bellows array assembly 11 includes a plurality of double U-shaped bellows units 111, and the double U-shaped bellows unit 111 includes a liquid inlet shunt pipe 1111, a parallel return pipe 1112, a shunt pipe liquid inlet injection pipe 1113, a secondary return liquid collecting pipe 1114 and a plurality of pipe structure units 1115, wherein the parallel return pipe 1112 is connected to the secondary return liquid collecting pipe 1114, and the liquid inlet shunt pipe 1111 is connected to the shunt pipe liquid inlet injection pipe 1113, and the number of the pipe structure units 1115 is a plurality. 15 is arranged in a linear array along the first direction, and the tube structure unit 1115 includes an inner ring U-shaped bellows 11151 and an outer ring U-shaped bellows 11152, the inner ring U-shaped bellows 11151 is arranged in the U-shaped ring of the outer ring U-shaped bellows 11152, the left tube end of the inner ring U-shaped bellows 11151 and the right tube end of the outer ring U-shaped bellows 11152 are respectively connected to the liquid inlet diversion pipe 1111, and the right tube end of the inner ring U-shaped bellows 11151 and the left tube end of the outer ring U-shaped bellows 11152 are respectively connected to the parallel reflux pipe 1112.

[0049] The left side tube end of the inner ring U-shaped bellows 11151 is cross-swapped with the right side tube end of the inner ring U-shaped bellows 11151, so that the left side tube end of the inner ring U-shaped bellows 11151 is connected to the liquid inlet diversion pipe 1111, and the right side tube end of the inner ring U-shaped bellows 11151 is connected to the parallel return pipe 1112; after the left side tube end of the inner ring U-shaped bellows 11151 is cross-swapped with the right side tube end of the inner ring U-shaped bellows 11151, the liquid inlet of the inner ring U-shaped bellows 11151 is adjacent to the reflux of the outer ring U-shaped bellows 11152, and the reflux of the inner ring U-shaped bellows 11151 is adjacent to the liquid inlet of the outer ring U-shaped bellows 11152.

[0050] The inner ring U-shaped bellows 11151 has a plurality of first large diameter sections 111511 arranged at intervals, and preferably the first large diameter sections 111511 on the inner ring U-shaped bellows 11151 are evenly spaced. Due to the existence of the first large diameter sections 111511, the inner ring U-shaped bellows 11151 forms a bellows structure. Similarly, the outer ring U-shaped bellows 11152 has a plurality of second large diameter sections 111521 arranged at intervals, and preferably the second large diameter sections 111521 on the outer ring U-shaped bellows 11152 are evenly spaced.

[0051] As a preferred embodiment, the size of the first large diameter section 111511 is the same as the size of the second large diameter section 111521.

[0052] The inner ring U-shaped corrugated tube 11151 is made of polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid or a copolymer of acrylic esters. The outer ring U-shaped corrugated tube 11152 is made of polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid or a copolymer of acrylic esters.

[0053] The material of the liquid inlet shunt pipe 1111 is polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U). Similarly, the material of the parallel reflux pipe 1112 is polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U). The material of the shunt pipe liquid inlet injection pipe 1113 is polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U). The material of the secondary reflux collecting pipe 1114 is polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U).

[0054] The ice-melting trough st15 also includes a primary shunt supply pipe 112 and a primary return collection pipe 113. The number of the double U-shaped corrugated pipe units 111 is multiple, and the multiple double U-shaped corrugated pipe units 111 are arranged in a linear array along the second direction. Each of the shunt pipe liquid inlet injection pipes 1113 is respectively connected to the primary shunt supply pipe 112, and each of the secondary return collection pipes 1114 is respectively connected to the primary return collection pipe 113. The second direction is perpendicular to the first direction. When the first direction is defined as the X-axis direction, the second direction is the Y-axis direction. The material of the primary shunt supply pipe 112 is polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U), and the material of the primary return collection pipe 113 is polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U).

[0055] The ice forming and melting tank st15 also includes a main liquid inlet pipe 114 connected to the primary branch liquid supply pipe 112 and a collecting return pipe 115 connected to the primary return collecting pipe 113. The main liquid inlet pipe 114 is made of polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U), and the collecting return pipe 115 is made of polyethylene (PE), polybutylene (PB) or polyvinyl chloride (PVC-U).

[0056] The ice-melting tank st15 also includes a container 12 for storing frozen water. The container 12 is made of fiberglass, metal plates or other materials with good thermal conductivity. The container 12 includes a top plate 121 and a storage tank 122 with an opening on the top. The top plate 121 is connected to the storage tank 122 to close the opening. The double U-shaped bellows array assembly 11 is located in the storage tank 122. In this embodiment, one end of the main liquid inlet pipe 114 and one end of the collecting reflux pipe 115 respectively pass through the top plate 121.

[0057] In a specific product, optionally, the top plate 121 is detachably connected to the storage tank 122 . To facilitate the disassembly, assembly and maintenance of the ice-melting tank st15 , the double U-shaped bellows array assembly 11 is preferably fixed on the top plate 121 .

[0058] In this embodiment, the ice-melting trough st15 also includes a connected support beam 131 and a hanging ear 132, the liquid inlet diversion pipe 1111 and the parallel return pipe 1112 are connected to the support beam 131, and the hanging ear 132 is connected to the top plate 121 through a hanging locking bolt 227, that is, the double U-shaped bellows array assembly 11 is mounted on the top plate 121 through the hanging ear 132 using the hanging locking bolt 227, and the maintenance personnel can dismantle the double U-shaped bellows array assembly 11 together with the top plate 121 when dismantling the top plate 121.

[0059] The ice forming and melting trough st15 further comprises an insulating layer 14, which covers the outer surface of the container 12. The insulating layer 14 is made of a composite of one or more of polyurethane foam rubber, polyvinyl chloride foam plastic, extruded polystyrene foam plastic and polystyrene foam plastic.

[0060] The ice-melting process of the ice-melting tank ST15 is briefly described as follows:

[0061] The refrigerant is injected from the main liquid inlet pipe, and then flows into the liquid inlet injection pipe of the shunt pipe through the first-level shunt liquid supply pipe, and then flows into the liquid inlet shunt pipe, and then flows into the inner ring U-shaped bellows and the outer ring U-shaped bellows through the liquid inlet shunt pipe for circulation, and then flows back into the second-level reflux collecting pipe through the parallel reflux pipe, and then flows into the first-level reflux collecting pipe from the second-level reflux collecting pipe, and finally flows out through the collecting reflux pipe;

[0062] Freezing process:

[0063] The refrigerant output by the refrigeration unit enters the primary shunt supply pipe through the main liquid inlet pipe, enters the liquid inlet shunt pipe through the shunt pipe liquid inlet injection pipe, and then enters the inner ring U-shaped bellows and the outer ring U-shaped bellows for circulation. During the circulation process in the inner ring U-shaped bellows and the outer ring U-shaped bellows, the refrigerant exchanges heat with the water outside the pipe, and the water temperature outside the pipe decreases. As the refrigerant circulates in the inner ring U-shaped bellows and the outer ring U-shaped bellows for a longer time, the refrigerant will When the temperature of the water outside the inner ring U-shaped bellows and the outer ring U-shaped bellows drops to -5℃~-7℃, nucleation begins at the interface between the outer wall of the inner ring U-shaped bellows and the water, and the water begins to change phase. The refrigerant continues to circulate in the inner ring U-shaped bellows and the outer ring U-shaped bellows, and the crystal nuclei at the interface between the outer wall of the inner ring U-shaped bellows and the water gradually grow ice crystals, and then all the water stored in the storage tank is frozen.

[0064] The time required for all the water stored in the storage tank to freeze is related to the performance of the refrigeration system, the thermal conductivity of the refrigerant circulation pipe, and the thermal conductivity area; when the performance of the refrigeration system and the thermal conductivity of the refrigerant circulation pipe material are fixed conditions, the thermal conductivity area is a key parameter; the inner ring U-shaped corrugated pipe and the outer ring U-shaped corrugated pipe used in this scheme, taking the diameter of 6mm, the wave height of 1.5mm, and the wave width of 3mm as an example, compared with the existing 6mm diameter coil, the same length, the thermal conductivity area is 2.66 times that of the existing straight pipe;

[0065] According to the heat transfer formula: ; In the formula, Q - total heat transfer, k - heat transfer coefficient, - mean temperature difference, A -Heat transfer area; heat transfer area of ​​refrigerant circulation pipe A The bigger,Q The greater the total heat transfer, the greater the heat exchange efficiency. At the same refrigerant flow length, the heat conduction area of ​​the inner ring U-shaped bellows used in the refrigerant circulation is 2.66 times that of the straight tube in the existing technology, which significantly improves the heat exchange efficiency.

[0066] The refrigerant circulation pipe adopts a bellows structure, which not only increases the heat transfer area at the same length, but also improves the characteristics of the fluid. The existing technology uses a straight pipe as the refrigerant circulation pipe, and the refrigerant fluid flows in a laminar manner. In this scheme, the refrigerant circulation pipe adopts a bellows structure. The refrigerant fluid flows in the bellows. Affected by different flow sections, physical quantities such as velocity and pressure undergo pulsating fluid motion in time and space, forming a turbulent flow pattern or turbulence; the refrigerant fluid flows in the bellows and exchanges heat with the water outside the pipe in a turbulent heat transfer manner. Turbulent heat transfer refers to the heat transfer that occurs when the fluid flows turbulently. Because its particles move irregularly, various quantities in the flow field change disorderly with time and space coordinates, resulting in a small temperature difference between the center of the tube and the wall of the tube, and high heat exchange efficiency. In addition, the film boiling effect of turbulent heat transfer causes more heat flow on the tube wall to be transferred to the side wall, resulting in a significant increase in the average Nusselt number of the side wall. According to literature records, the maximum increase compared to laminar heat transfer is about 50%. The enhanced heat exchange capacity of the refrigerant circulation pipe not only improves the utilization efficiency of the refrigeration system's output cooling capacity, but also shortens the time required for all the water stored in the storage tank to freeze, achieving an energy-saving effect.

[0067] Ice melting process:

[0068] The air-conditioning water (usually 12°C) that absorbs heat and flows back from the terminal is cooled by heat exchange with the refrigerant through the intermediate heat exchanger, so that the air-conditioning water is cooled to 5°C, providing a cold source for the terminal; the intermediate heat exchanger is a device that transfers the heat of the 12°C air-conditioning water to the refrigerant, so that the temperature of the refrigerant is increased. The refrigerant with increased temperature enters the primary shunt supply pipe from the main liquid inlet pipe, enters the liquid inlet shunt pipe through the shunt pipe liquid inlet injection pipe, and then enters the inner ring U-shaped bellows and the outer ring U-shaped bellows to circulate in the inner ring During the circulation process in the U-shaped bellows and the outer ring U-shaped bellows, the heat is exchanged with the ice outside the tube. The ice outside the tube obtains heat to melt. The melted ice outside the tube absorbs the heat of the refrigerant circulating in the inner ring U-shaped bellows and the outer ring U-shaped bellows, so that the temperature of the refrigerant is reduced, usually to 1°C to 3°C. The refrigerant at 1°C to 3°C then enters the intermediate heat exchanger to exchange heat with the air-conditioning water that absorbs heat and flows back at the terminal, so that the air-conditioning water that absorbs heat and flows back is cooled; the melting rate of the ice melting process is similar to that of the freezing process, and the heat transfer area of ​​the refrigerant circulation tube is AThe larger it is, the greater the heat exchange between the refrigerant in the refrigerant circulation pipe and the ice outside the pipe. The refrigerant flowing in the refrigerant circulation pipe exchanges heat with the ice outside the pipe in a turbulent heat transfer manner, further increasing the heat exchange capacity between the refrigerant in the refrigerant circulation pipe and the ice outside the pipe, and ultimately achieving the goal of increasing the ice melting rate. Increasing the ice melting rate also enhances the ice storage system's ability to follow dynamic loads.

[0069] Please combine Figures 1 to 5 Specifically in this embodiment, the refrigerant of the evaporator st14 is cooled to -5°C to -7°C by the evaporator st14, sucked from the first low-temperature refrigerant delivery pipe stg5 by the first refrigerant delivery pump stb1, and then delivered to the double U-shaped bellows array assembly 11 through the main liquid inlet pipe 114 of the ice-melting tank st15. The refrigerant circulates in the inner ring U-shaped bellows 11151 and the outer ring U-shaped bellows 11152 of the double U-shaped bellows array assembly 11. The inner ring U-shaped bellows 11151 and the outer ring The U-shaped bellows 11152 is immersed in the water stored in the ice-melting trough st15. The refrigerant at -5℃ to -7℃ circulates in the inner ring U-shaped bellows 11151 and the outer ring U-shaped bellows 11152, and the water stored in the ice-melting trough st15 gradually cools down. As the circulation time of the refrigerant at -5℃ to -7℃ in the inner ring U-shaped bellows 11151 and the outer ring U-shaped bellows 11152 increases, the water outside the inner ring U-shaped bellows 11151 and the outer ring U-shaped bellows 11152 undergoes a phase change, and turns from water to ice.

[0070] When the front cooler st3 and the rear cooler st5 need to work: start the second refrigerant delivery pump stb2, and start the air-conditioning cold water delivery pump stb3 at the same time. The air-conditioning cold water delivery pump stb3 circulates the air-conditioning water in the front cooler st3 and the rear cooler st5 through the first air-conditioning cold water delivery pipe stg8, the first air-conditioning return water delivery pipe stg9, the second air-conditioning cold water delivery pipe stg10, the second air-conditioning return water delivery pipe stg11 and the intermediate heat exchanger st16; the second refrigerant delivery pump stb2 delivers the refrigerant through the second low-temperature refrigerant delivery pipe stg6 and the refrigerant circulation pipe stg7 to circulate between the ice-melting tank st15 and the intermediate heat exchanger st16; the air in the front cooler st3 and the rear cooler st5 The adjusted water passes through the intermediate heat exchanger st16, and exchanges heat with the refrigerant from the ice-forming and ice-melting tank st15, and the air-conditioned water from the front surface cooler st3 and the rear surface cooler st5 is cooled; the refrigerant circulating between the ice-forming and ice-melting tank st15 and the intermediate heat exchanger st16 exchanges heat with the air-conditioned water from the front surface cooler st3 and the rear surface cooler st5 in the intermediate heat exchanger st16, and the refrigerant obtains heat to form a temperature rise, and the temperature-raised refrigerant circulates between the ice-forming and ice-melting tank st15 and the intermediate heat exchanger st16 through the second refrigerant delivery pump stb2, so that the ice in the ice-forming and ice-melting tank st15 obtains the heat of the temperature-raised refrigerant to form melted ice, and the ice melting process belongs to the cooling process, and the cooling process provides cooling for the front surface cooler st3 and the rear surface cooler st5.

[0071] The auxiliary electric heater st9 is a duct air electric heater; the intermediate heat exchanger st16 can be a plate heat exchanger or a tube heat exchanger.

[0072] Please combine Figures 6 to 11The phase change waste heat recovery storage device ST8 includes a box body 21 and a phase change storage device 22. The air inlet of the phase change storage device ST8 is arranged at the top of the box body 21, and the air outlet of the phase change storage device ST8 is arranged at the bottom of the box body 21. The phase change storage device 22 is arranged in the box body 21. The phase change storage device 22 includes a heat medium inlet pipe 221, a heat medium outlet pipe 222, a plurality of liquid distribution pipes 223, and a plurality of liquid collecting pipes 22. 4 and a plurality of phase change heat storage plates 225 arranged side by side, a ventilation grille 226 is formed between two adjacent phase change heat storage plates 225, the inlet and outlet of the ventilation grille 226 are arranged in the up-down direction, the phase change heat storage plate 225 comprises a left medium cavity plate 2251, a right medium cavity plate 2252, a left rectangular frame 2253, a right rectangular frame 2254 and a hot runner plate 2255, the left rectangular frame 2253 is respectively connected to the left medium cavity plate 2251, the right medium cavity plate 2252, the left rectangular frame 2253 and the right rectangular frame 2254, and the hot runner plate 2255. 251 and the hot runner plate 2255 are sealed and connected, the left rectangular frame 2253, the left medium cavity plate 2251 and the hot runner plate 2255 are surrounded to form a left chamber 2256, the right rectangular frame 2254 is sealed and connected to the right medium cavity plate 2252 and the hot runner plate 2255 respectively, the right rectangular frame 2254, the right medium cavity plate 2252 and the hot runner plate 2255 are surrounded to form a right chamber 2257, the left chamber 2256 and the The right chamber 2257 is filled with heat storage medium, and the heat storage medium can be selected from phase change materials such as paraffin; a heat medium flow channel 22551 is provided in the hot runner plate 2255, one end of the heat medium flow channel 22551 is connected to the liquid distribution pipe 223, the liquid distribution pipe 223 is connected to the heat medium inlet pipe 221, and the other end of the heat medium flow channel 22551 is connected to the collecting pipe 224, and the collecting pipe 224 is connected to the heat medium outlet pipe 222.

[0073] Specifically, the hot runner plate 2255 includes a left-facing concave-convex cavity flow plate 22552 and a right-facing concave-convex cavity flow plate 22553 that are sealed and connected. The left-facing concave-convex cavity flow plate 22552 and the right-facing concave-convex cavity flow plate 22553 are respectively provided with recessed portions 22554. The recessed portions 22554 of the left-facing concave-convex cavity flow plate 22552 and the recessed portions 22554 on the right-facing concave-convex cavity flow plate 22553 are arranged opposite to each other to form the heat medium flow channel 22551. The left-facing rectangular frame 2253 is sealed and connected to the left-facing concave-convex cavity flow plate 22552, and the right-facing rectangular frame 2254 is sealed and connected to the right-facing concave-convex cavity flow plate 22553. More specifically, the left-hand concave-convex cavity flow plate 22552 and the right-hand concave-convex cavity flow plate 22553 are in surface contact with each other except the recessed portion 22554 used to form the heat medium flow channel 22551. Preferably, the left-hand concave-convex cavity flow plate 22552 and the right-hand concave-convex cavity flow plate 22553 are hot-melt-fused by a hot-melt process, and the fusion joint meets the sealing requirements.

[0074] In order to improve the heat exchange efficiency, the heat medium flowing in the heat medium flow channel 22551 does not need to be stored in the heat storage medium, and directly transfers the heat to the air flowing through the ventilation grille 226. In this embodiment, the left medium cavity plate 2251 is provided with a left concave cavity 22511, and the left concave cavity 22511 is in contact with the concave portion 22554 on the left concave-convex cavity flow channel plate 22552; the right medium cavity plate 2252 is provided with a right concave cavity 22521, and the right concave cavity 22521 is in contact with the concave portion 22554 on the left concave-convex cavity flow channel plate 22552. 2521 is in contact with the recessed portion 22554 on the right concave-convex cavity flow channel plate 22553. At this time, the heat of the heat medium in the heat medium flow channel 22551 is directly transferred to the air flowing through the ventilation grid groove 226 through the wall of the recessed portion 22554 and the wall of the left concave cavity 22511 / the wall of the right concave cavity 22521, so that the area of ​​the phase change heat storage plate 225 corresponding to the heat medium flow channel 22551 can directly conduct heat to the outside without the need for heat storage medium to store heat, thereby achieving the purpose of improving the heat exchange effect. Moreover, since there is a direct contact area between the left medium cavity plate 2251 and the left concave-convex cavity flow channel plate 22552, and the area corresponds to the heat medium flow channel 22551, the left medium cavity plate 2251 can also be better heated, thereby transferring heat to the ventilation grating groove 226 and the heat storage medium, which is beneficial to improve the heat exchange efficiency. Similarly, since there is a direct contact area between the right medium cavity plate 2252 and the right concave-convex cavity flow channel plate 22553, and the area corresponds to the heat medium flow channel 22551, the right medium cavity plate 2252 can also be better heated, thereby transferring heat to the ventilation grating groove 226 and the heat storage medium. In other embodiments, it is also acceptable that only the left medium cavity plate 2251 is provided with the left concave cavity 22511, or only the right medium cavity plate 2252 is provided with the right concave cavity 22521.

[0075] The left rectangular frame 2253 is sealed and connected to the left medium cavity plate 2251 by sealant, the left rectangular frame 2253 is sealed and connected to the hot runner plate 2255 by sealant, the right rectangular frame 2254 is sealed and connected to the right medium cavity plate 2252 by sealant, and the right rectangular frame 2254 is sealed and connected to the hot runner plate 2255 by sealant. The sealant can be epoxy resin, nitrile rubber, aramid film composite structural adhesive film, etc. Epoxy resin, nitrile rubber, aramid film composite structural adhesive film has the advantages of high strength, good toughness, rapid curing at high temperature, uniform glue distribution, simple construction process, etc., allowing long-term use temperature ≥120°C and high reliability.

[0076] The phase change heat storage device 22 also includes a plurality of locking bolts 227 and a plurality of annular gaskets 228. The locking bolts 227 penetrate each of the phase change heat storage plates 225. An annular gasket 228 is provided between two adjacent phase change heat storage plates 225. The annular gasket 228 is sleeved on the locking bolts 227. The annular gasket 228 is used to maintain the spacing between the two adjacent phase change heat storage plates 225 so that the ventilation grille 226 is formed between the two adjacent phase change heat storage plates 225. The annular gasket 228 can be made of hard metal material or heat-resistant silicone. In this embodiment, the plurality of locking bolts 227 are distributed in a circle along the edge of the phase change heat storage plate 225.

[0077] In this embodiment, the phase change heat storage device 22 further includes a left sealing plate 2291, a right sealing plate 2293, a left edge seal 2292 and a right edge seal 2294. The left sealing plate 2291 is located on the left side of the phase change heat storage plate 225 at the far left, and the left edge seal 2292 is located on the left side of the left sealing plate 2291. The left sealing plate 2291 respectively contacts the left edge seal 2292 and the phase change heat storage plate 225 at the far left. 25, the right sealing plate 2293 is located on the right side of the phase change heat storage plate 225 at the far right, the right edge seal 2294 is located on the right side of the right sealing plate 2293, the right sealing plate 2293 respectively abuts against the right edge seal 2294 and the phase change heat storage plate 225 at the far right, and the locking bolt 227 passes through the left sealing plate 2291, the right sealing plate 2293, the left edge seal 2292 and the right edge seal 2294.

[0078] The liquid distribution pipe 223 is inserted at the inlet of the heat medium flow channel 22551, and the liquid collection pipe 224 is inserted at the outlet of the heat medium flow channel 22551. Preferably, the liquid distribution pipe 223 and the hot runner plate 2255 are welded by a hot melt welding process, and the welding point meets the sealing requirements. The liquid collection pipe 224 and the hot runner plate 2255 are welded by a hot melt welding process, and the welding point meets the sealing requirements.

[0079] The box body 21 is a sandwich structure, and the sandwich space of the sandwich structure is filled with a heat-insulating member 213 . The heat-insulating member 213 is made of aluminum silicate fiber felt, silicon dioxide aerogel felt or other materials.

[0080] The box body 21 includes a rectangular insulation box 214, a frustum insulation top 215 and a frustum insulation bottom 216. The top of the rectangular insulation box 214 is connected to the frustum insulation top 215, and the bottom of the rectangular insulation box 214 is connected to the frustum insulation bottom 216. The air inlet of the phase change recovery waste heat storage device st8 is arranged at the top of the frustum insulation top 215, and the air outlet of the phase change recovery waste heat storage device st8 is arranged at the bottom of the frustum insulation bottom 216. The phase change heat accumulator 22 is arranged in the rectangular insulation box 214.

[0081] To facilitate the installation and support of the rectangular insulation box 214 , a plurality of ear seats 217 are provided on the rectangular insulation box 214 .

[0082] The working principle of this phase change waste heat recovery heat storage device ST8 is briefly described as follows:

[0083] When the heat medium is input from the heat medium inlet pipe 221, it flows into the heat medium flow channel 22551 of the hot runner plate 2255 through the liquid distribution pipe 223, circulates through the heat medium flow channel 22551, and flows into the heat medium outlet pipe 222 through the liquid collecting pipe 224; when the heat medium flows through the hot runner plate 2255, the heat of the heat medium is transferred to the left concave-convex cavity flow channel plate 22552, the left medium cavity plate 2251, the right concave-convex cavity flow channel plate 22553 and the right medium cavity plate 2252 , so that the heat storage medium in the left chamber 2256 and the heat storage medium in the right chamber 2257 absorb heat, and a small part of the heat is directly transferred to the ventilation grid groove 226. As the circulation time of the heat medium in the heat medium flow channel 22551 of the hot runner plate 2255 continues to increase, the heat storage medium absorbs more and more heat, and the temperature of the heat storage medium continues to rise, and finally a phase change is formed, from solid phase to liquid phase, and the heat storage medium stores heat in the form of phase change latent heat and sensible heat of temperature rise of the heat storage medium.

[0084] When the air flow enters the rectangular insulation box 214 through the air inlet of the phase change waste heat recovery storage device st8 and flows through the ventilation grille 226, the air flow forms convection heat exchange with the left medium cavity plate 2251 and the right medium cavity plate 2252, and the heat storage of the heat storage medium in the left chamber 2256 is transferred to the ventilation grille 226 through the left medium cavity plate 2251, and the heat storage of the heat storage medium in the right chamber 2257 is transferred to the ventilation grille 226 through the right medium cavity plate 2252, so that the temperature of the air flow flowing through the ventilation grille 226 increases, and the air flow with increased temperature is output through the air outlet to the workstation that needs heating, and the heat storage of the heat storage medium is utilized.

[0085] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Waste heat recovery and heat storage type ice storage energy-saving solid adsorption rotary dehumidification system, characterized by: Including adsorption rotary dehumidifier, first air filter, front surface cooler, air handling fan, rear surface cooler, second air filter, regeneration fan, phase change recovery waste heat storage device, auxiliary electric heater, refrigeration compressor, condenser, condensing fan, thermal expansion valve, evaporator, ice melting tank, intermediate heat exchanger, first refrigerant delivery pump, second refrigerant delivery pump, air conditioning cold water delivery pump, high-temperature and high-pressure refrigeration steam delivery pipe, heat storage condensation connecting pipe, high-pressure condensate delivery pipe, low-pressure throttling refrigerant delivery pipe, low-pressure return air pipe, first low-temperature refrigerant delivery pipe, refrigerant return pipe, second low-temperature refrigerant delivery pipe, refrigerant circulation pipe, first air conditioning cold water delivery pipe, first air conditioning return water delivery pipe, second air conditioning cold water delivery pipe, second air conditioning return water delivery pipe; The air inlet of the L-shaped guide bucket of the adsorption rotary dehumidifier is connected to the air outlet of the front surface cooler, and the air outlet of the first air filter is connected to the air inlet of the front surface cooler; the air handling fan is installed in the connecting pipe between the air inlet of the L-shaped guide bucket and the air outlet of the front surface cooler; the rear surface cooler is installed at the air outlet of the L-shaped guide bucket of the adsorption rotary dehumidifier; the auxiliary electric heater is installed at the air outlet of the phase change recovery waste heat storage device, and the air outlet of the phase change recovery waste heat storage device is connected to the air inlet of the triangular guide bucket of the adsorption rotary dehumidifier; the refrigeration compressor The heat medium inlet pipe of the phase change recovery waste heat storage device is connected to the heat medium inlet pipe of the phase change recovery waste heat storage device through the high-temperature and high-pressure refrigeration steam delivery pipe, the regeneration fan is installed at the air inlet of the phase change recovery waste heat storage device, and the regeneration fan is located between the phase change recovery waste heat storage device and the second air filter; the heat medium outlet pipe of the phase change recovery waste heat storage device is connected to the condenser through the heat storage condensation connecting pipe, the condensation fan is installed on the windward end face of the condenser, the condenser is connected to the thermal expansion valve through the high-pressure condensate delivery pipe, and the thermal expansion valve is connected to the evaporator through the low-pressure throttling refrigerant delivery pipe; The evaporator is connected to the refrigeration compressor via the low-pressure return air pipe; The evaporator is connected to the main liquid inlet pipe of the ice-melting tank through the first low-temperature refrigerant delivery pipe, the collecting return pipe of the ice-melting tank is connected to the evaporator through the refrigerant return pipe, and the first refrigerant delivery pump is arranged on the first low-temperature refrigerant delivery pipe; the ice-melting tank is connected to the intermediate heat exchanger through the second low-temperature refrigerant delivery pipe, and the second refrigerant delivery pump is arranged on the second low-temperature refrigerant delivery pipe; the intermediate heat exchanger is connected to the ice-melting tank through the refrigerant circulation pipe, the intermediate heat exchanger is connected to the front surface cooler through the first air-conditioning return water delivery pipe, the intermediate heat exchanger is connected to the rear surface cooler through the second air-conditioning return water delivery pipe, the intermediate heat exchanger is connected to the air-conditioning cold water delivery pump, the air-conditioning cold water delivery pump is connected to the front surface cooler through the first air-conditioning cold water delivery pipe, and the air-conditioning cold water delivery pump is connected to the rear surface cooler through the second air-conditioning cold water delivery pipe; The phase change waste heat recovery heat storage device comprises a box body and a phase change heat storage device, wherein the air inlet of the phase change waste heat recovery heat storage device is arranged at the top of the box body, and the air outlet of the phase change waste heat recovery heat storage device is arranged at the bottom of the box body; the phase change heat storage device is arranged in the box body, and the phase change heat storage device comprises a heat medium inlet pipe, a heat medium outlet pipe, a plurality of liquid distribution pipes, a plurality of liquid collecting pipes and a plurality of phase change heat storage plates arranged side by side, and a ventilation grid groove is formed between two adjacent phase change heat storage plates, and the inlet and outlet of the ventilation grid groove are arranged in the up and down direction, and the phase change heat storage plate comprises a left medium cavity plate, a right medium cavity plate, a left rectangular frame, a right rectangular frame and a hot runner The left rectangular frame is sealed and connected with the left medium cavity plate and the hot runner plate respectively, and the left rectangular frame, the left medium cavity plate and the hot runner plate are enclosed to form a left chamber, and the right rectangular frame is sealed and connected with the right medium cavity plate and the hot runner plate respectively, and the right rectangular frame, the right medium cavity plate and the hot runner plate are enclosed to form a right chamber, and the left chamber and the right chamber are respectively filled with heat storage medium; a heat medium flow channel is provided in the hot runner plate, one end of the heat medium flow channel is connected to the liquid distributor, the liquid distributor is connected to the heat medium inlet pipe, and the other end of the heat medium flow channel is connected to the liquid collector, and the liquid collector is connected to the heat medium outlet pipe; The ice-melting trough includes a double U-shaped bellows array assembly, and the double U-shaped bellows array assembly includes a plurality of double U-shaped bellows units. The double U-shaped bellows unit includes a liquid inlet shunt pipe, a parallel return pipe, a shunt pipe liquid inlet injection pipe, a secondary return collection pipe and a plurality of pipe structure units. The parallel return pipe is connected to the secondary return collection pipe, and the liquid inlet shunt pipe is connected to the shunt pipe liquid inlet injection pipe. The plurality of pipe structure units are arranged in a linear array along a first direction. The pipe structure unit includes an inner ring U-shaped bellows and an outer ring U-shaped bellows. The inner ring U-shaped bellows is arranged in a U-shaped ring of the outer ring U-shaped bellows. The left side pipe end of the inner ring U-shaped bellows and the right side pipe end of the outer ring U-shaped bellows are respectively connected to the liquid inlet shunt pipe, and the right side pipe end of the inner ring U-shaped bellows and the left side pipe end of the outer ring U-shaped bellows are respectively connected to the parallel return pipe.

2. The waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system according to claim 1 is characterized by: The hot runner plate comprises a left-facing concave-convex cavity flow plate and a right-facing concave-convex cavity flow plate which are sealed and connected, and recessed portions are respectively provided on the left-facing concave-convex cavity flow plate and the right-facing concave-convex cavity flow plate. The recessed portions of the left-facing concave-convex cavity flow plate and the recessed portions on the right-facing concave-convex cavity flow plate are arranged opposite to each other to form the heat medium flow channel, and the left-facing rectangular frame is sealed and connected to the left-facing concave-convex cavity flow plate, and the right-facing rectangular frame is sealed and connected to the right-facing concave-convex cavity flow plate.

3. The waste heat recovery and thermal storage type ice storage and energy-saving solid adsorption rotary dehumidification system according to claim 2 is characterized in that: The left-facing medium cavity plate is provided with a left-facing concave cavity, which is in surface contact with the recessed portion on the left-facing concave-convex cavity flow channel plate; and / or, the right-facing medium cavity plate is provided with a right-facing concave cavity, which is in surface contact with the recessed portion on the right-facing concave-convex cavity flow channel plate.

4. The waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system according to claim 1 is characterized in that: The phase change heat storage device also includes a plurality of locking bolts and a plurality of annular gaskets, wherein the locking bolts penetrate through each of the phase change heat storage plates, an annular gasket is arranged between two adjacent phase change heat storage plates, and the annular gasket is sleeved on the locking bolts, and the annular gasket is used to maintain the spacing between the two adjacent phase change heat storage plates so that the ventilation grille is formed between the two adjacent phase change heat storage plates.

5. The waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system according to claim 1 is characterized in that: The box body is a sandwich structure, and the sandwich space of the sandwich structure is filled with a heat-insulating component.

6. The waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system according to claim 1 is characterized in that: The ice-melting trough also includes a primary shunt liquid supply pipe, a primary reflux collecting pipe, a main liquid inlet pipe connected to the primary shunt liquid supply pipe, and a collecting reflux pipe connected to the primary reflux collecting pipe. There are multiple double U-shaped corrugated pipe units, and the multiple double U-shaped corrugated pipe units are arranged in a linear array along a second direction, and the second direction is perpendicular to the first direction. Each of the shunt pipe liquid inlet injection pipes is respectively connected to the primary shunt liquid supply pipe, and each of the secondary reflux collecting pipes is respectively connected to the primary reflux collecting pipe.

7. The waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system according to claim 1 is characterized by: The inner ring U-shaped corrugated tube has a plurality of first large diameter sections arranged at intervals, and the outer ring U-shaped corrugated tube has a plurality of second large diameter sections arranged at intervals.

8. The waste heat recovery and thermal storage ice storage energy-saving solid adsorption rotary dehumidification system according to claim 1 is characterized by: The ice forming and melting tank also includes a container, which includes a top plate and a storage tank with an opening at the top, the top plate is connected to the storage tank to close the opening, and the double U-shaped bellows array assembly is located in the storage tank.

Images