Dynamic ice storage system for eliminating ice crystals by using heat regeneration method

Abstract

The utility model relates to the technical field of dynamic ice storage, in particular to a dynamic ice storage system for eliminating ice crystals by using a heat regeneration method, which comprises a cold source, a supercooled water heat exchanger, an ice crystal filter, a first heat exchanger, a second heat exchanger, an ice crystal anti-spreading device, a crystal promoting device and an ice storage tank, the ice storage tank is sequentially connected with the ice crystal filter, the first flow channel, the second flow channel, the third flow channel, the second fluid channel, the ice crystal anti-spreading device, the crystallization promoting device and an ice slurry inlet of the ice storage tank through pipelines to form a loop; the fourth flow channel is connected in series with an ice crystal anti-spreading device, and a first bypass branch is arranged on the ice crystal anti-spreading device; water discharged from the ice storage tank is heated through a first flow channel of the first heat exchanger and the second heat exchanger and cooled through a third flow channel of the first heat exchanger, so that ice crystals are eliminated, and the supercooled water heat exchanger is prevented from being blocked; waste of refrigerating capacity is avoided; medium in the loop can be heated through an external heat source, the heat exchanger is prevented from being blocked by ice crystals, and regular self-cleaning is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic ice storage cooling, in particular to a dynamic ice storage cooling system for eliminating ice crystals by using a heat regeneration method. Background Art

[0002] Due to the characteristics of fast ice making and melting speed, high operation energy efficiency, low initial investment, and good site adaptability, the dynamic ice storage cooling system has become the development direction in recent years.

[0003] In the existing dynamic ice storage cooling system, a preheater is often arranged behind the water outlet at the lower part of the ice storage tank, and the condensation heat of the ice making host is used to exchange heat with the water outlet of the ice storage tank, so as to eliminate possible ice crystals in the water and prevent them from entering the subcooled water heat exchanger and causing blockage. However, this solution has the following deficiencies: (1) After the water outlet of the ice storage tank passes through the preheater, it is directly heated from 0°C to 0.3 - 0.5°C, and there are still unmelted ice crystals, which have a risk of blockage when entering the subcooled water heat exchanger. If it is heated to a higher temperature (such as 3 - 5°C), the ice crystals can be effectively eliminated, but more cooling capacity will be wasted during ice making; (2) Using the condensation heat of the ice making host to heat the water outlet of the ice storage tank, and using it to heat the pipe wall of the ice crystal anti-propagator to prevent the ice slurry formed by the disturbance of subcooled water from adhering to the pipe wall and causing ice blockage will reduce the effective refrigerating capacity of the unit for ice making by 15% - 20%, restricting the improvement of the unit performance; (3) The subcooled water heat exchanger needs to be cleaned regularly to prevent the accumulation of ice crystals inside. The existing system often sets up another set of equipment for regular de-icing of the subcooled water heat exchanger, with a complex system and high initial investment.

[0004] Therefore, it is necessary to improve the structure of the existing dynamic ice storage cooling system to solve the above problems. Summary of the Utility Model

[0005] The utility model provides a dynamic ice storage cooling system for eliminating ice crystals by using a heat regeneration method, which is used to solve the problems in the existing technology that the dynamic ice storage cooling system wastes cooling capacity by using the condensation heat of the unit to melt ice, the subcooled water is easy to be ice-blocked when entering the subcooled water heat exchanger, and the system stability and efficiency are affected due to frequent self-de-icing.

[0006] The utility model provides a dynamic ice storage cooling system for eliminating ice crystals by using a heat regeneration method, including: a cold source, a subcooled water heat exchanger, an ice crystal filter, a first heat exchanger, a second heat exchanger, an ice crystal anti-propagator, a crystal promoter, and an ice storage tank; wherein,

[0007] The subcooled water heat exchanger includes: a first fluid channel and a second fluid channel, and the cold source is communicated with the first fluid channel;

[0008] The first water outlet of the ice storage tank is sequentially connected to the ice crystal filter, the first flow channel of the first heat exchanger, the second flow channel of the second heat exchanger, the third flow channel of the first heat exchanger, the second fluid channel, the ice crystal anti-propagator, the crystal promoter and the ice slurry inlet of the ice storage tank through pipelines to form a loop, and an ice making pump is arranged on the loop;

[0009] The fourth flow channel of the second heat exchanger is connected in series with the ice crystal anti-propagator, a first valve is arranged between the fourth flow channel and the ice crystal anti-propagator, a first bypass branch communicating with the fourth flow channel is arranged on the ice crystal anti-propagator, and a second valve is arranged on the first bypass branch;

[0010] The front end of the inlet of the second flow channel of the second heat exchanger is communicated with the rear end of the outlet of the second fluid channel of the subcooled water heat exchanger through a pipeline, and a third valve is arranged on the pipeline;

[0011] A fourth valve is arranged at the front end of the inlet of the ice crystal anti-propagator.

[0012] According to the dynamic ice storage and cooling system for eliminating ice crystals by using the regenerative method provided by the present utility model, the second water outlet of the ice storage tank, the fifth flow channel of the user heat exchanger and the water inlet of the ice storage tank are sequentially connected through pipelines, and a melting ice pump is arranged on the pipeline;

[0013] The fourth flow channel of the second heat exchanger is connected in series with the sixth flow channel of the user heat exchanger to a first user.

[0014] According to the dynamic ice storage and cooling system for eliminating ice crystals by using the regenerative method provided by the present utility model, the cold source further includes a compressor, a condenser and a throttling device;

[0015] The compressor, the condenser, the fourth flow channel of the second heat exchanger, the throttling device and the first fluid channel of the subcooled water heat exchanger are communicated through a refrigerant loop.

[0016] According to the dynamic ice storage and cooling system for eliminating ice crystals by using the regenerative method provided by the present utility model, the fourth flow channel of the second heat exchanger is provided with a second bypass branch on the refrigerant loop, and a fifth valve is arranged on the second bypass branch.

[0017] According to the dynamic ice storage and cooling system for eliminating ice crystals by using the regenerative method provided by the present utility model, the second water outlet of the ice storage tank, the fifth flow channel of the user heat exchanger and the water inlet of the ice storage tank are sequentially connected through pipelines, and a melting ice pump is arranged on the pipeline;

[0018] The sixth flow channel of the user heat exchanger is connected to a first user;

[0019] The fourth flow channel of the second heat exchanger is connected to a second user.

[0020] According to the dynamic ice storage cooling system for eliminating ice crystals by using the heat regeneration method provided by the present utility model, the second user is a medium-temperature chilled water heat exchange unit of an air conditioner, which includes a medium-temperature heat exchanger, a medium-temperature chiller, and a reservoir;

[0021] The medium-temperature heat exchanger, the medium-temperature chiller, and the reservoir are connected by pipelines, and a water pump is arranged on the pipeline;

[0022] A third bypass branch is connected in parallel to the medium-temperature heat exchanger, and a sixth valve is arranged on the third bypass branch;

[0023] A fourth bypass branch is connected in parallel to the medium-temperature chiller, and a seventh valve is arranged on the fourth bypass branch;

[0024] The reservoir is connected in parallel to the fourth flow channel of the second heat exchanger, an eighth valve is arranged on the branch where the reservoir is located, and a ninth valve is arranged on the branch where the second heat exchanger is located.

[0025] A dynamic ice storage cooling system for eliminating ice crystals by using the heat regeneration method provided by the present utility model includes: a cold source, a subcooled water heat exchanger, an ice crystal filter, a first heat exchanger, a second heat exchanger, an ice crystal anti-propagator, a crystal promoter, and an ice storage tank. Among them, the subcooled water heat exchanger includes: a first fluid channel and a second fluid channel, and the cold source is communicated with the first fluid channel; the first water outlet of the ice storage tank is sequentially connected with the ice crystal filter, the first flow channel of the first heat exchanger, the second flow channel of the second heat exchanger, the third flow channel of the first heat exchanger, the second fluid channel, the ice crystal anti-propagator, the crystal promoter, and the ice slurry inlet of the ice storage tank through pipelines to form a loop, and an ice making pump is arranged on the loop; the fourth flow channel of the second heat exchanger is connected in series with the ice crystal anti-propagator, a first valve is arranged between the fourth flow channel and the ice crystal anti-propagator, a first bypass branch communicating with the fourth flow channel is arranged on the ice crystal anti-propagator, and a second valve is arranged on the first bypass branch; the front end of the inlet of the second flow channel of the second heat exchanger is communicated with the rear end of the outlet of the second fluid channel of the subcooled water heat exchanger through a pipeline, and a third valve is arranged on the pipeline; a fourth valve is arranged at the front end of the inlet of the ice crystal anti-propagator. For the dynamic ice storage cooling system for eliminating ice crystals by using the heat regeneration method provided by the present utility model, the water discharged from the ice storage tank is heated up through the first flow channel of the first heat exchanger, further heated up by absorbing the heat of the heat source through the second heat exchanger, and finally cooled down through the third flow channel of the first heat exchanger, so as to effectively eliminate ice crystals and prevent the subcooled water heat exchanger from being blocked; the chilled water return of the user's air conditioner is used to recover cold energy, avoiding waste of cooling capacity; through the control of each valve, the medium in the loop of the second flow channel, the third flow channel, and the second fluid channel can be heated by using an external heat source to prevent ice crystal blockage in the heat exchanger, realizing regular self-cleaning. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model.

[0028] Figure 2 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model in the ice melting mode.

[0029] Figure 3 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model in the ice melting mode when there are multiple ice making loops.

[0030] Figure 4 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model in single-user application.

[0031] Figure 5 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model for directly exchanging heat with a refrigerant to produce ice slurry Figure 1 .

[0032] Figure 6 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model for directly exchanging heat with a refrigerant to produce ice slurry Figure 2 .

[0033] Figure 7 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model in dual-user application Figure 1 .

[0034] Figure 8 It is a schematic structural diagram of a dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method provided in one embodiment of the present utility model in dual-user application Figure 2 .

[0035] Reference numerals:

[0036] 1. Cold source; 10. Subcooled water heat exchanger; 101. First fluid channel; 102. Second fluid channel; 11. Compressor; 12. Condenser; 13. Throttling device; 14. Fifth valve; 20. Ice crystal filter; 21. First heat exchanger; 22. Second heat exchanger; 23. Ice making pump; 24. Ice crystal anti-propagator; 25. Crystal promoting device; 3. Ice storage tank; 31. Ice melting pump; 32. User heat exchanger; 211. First flow channel; 222. Second flow channel; 212. Third flow channel; 221. Fourth flow channel; 241. Second valve; 242. First valve; 26. Third valve; 261. Fourth valve; 321. Fifth flow channel; 322. Sixth flow channel; 41. Sixth valve; 42. Seventh valve; 43. Eighth valve; 44. Ninth valve; 51. First user; 52. Second user; 521. Medium-temperature heat exchanger; 522. Medium-temperature refrigerator; 523. Water storage tank; 524. Water pump. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model fall within the protection scope of the present utility model.

[0038] In the description of this embodiment, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this embodiment.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this embodiment, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In this embodiment, unless otherwise clearly specified or limited, terms such as "set", "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0041] In the embodiments of the present utility model, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] The following combines Figures 1 - 8 Describe a dynamic ice storage cooling system using the heat regeneration method to eliminate ice crystals of the present utility model. The dynamic ice storage cooling system using the heat regeneration method to eliminate ice crystals includes: a cold source 1, a subcooled water heat exchanger 10, an ice crystal filter 20, a first heat exchanger 21, a second heat exchanger 22, an ice crystal anti-propagator 24, a crystal promoter 25, and an ice storage tank 3.

[0043] As Figure 1 shown, the subcooled water heat exchanger 10 includes: a first fluid channel 101 and a second fluid channel 102, and the cold source 1 is in communication with the first fluid channel 101; the first water outlet of the ice storage tank 3 is connected in sequence through pipelines with the ice crystal filter 20, the first flow channel 211 of the first heat exchanger 21, the second flow channel 222 of the second heat exchanger 22, the third flow channel 212 of the first heat exchanger 21, the second fluid channel 102, the ice crystal anti-propagator 24, the crystal promoter 25, and the ice slurry inlet of the ice storage tank 3 to form a loop, and an ice making pump 23 is arranged on the loop; the fourth flow channel 221 of the second heat exchanger 22 is connected in series with the ice crystal anti-propagator 24, and a first valve 242 is arranged between the fourth flow channel 221 and the ice crystal anti-propagator 24. A first bypass branch communicating with the fourth flow channel 221 is arranged on the ice crystal anti-propagator 24, and a second valve 241 is arranged on the first bypass branch; the front end of the inlet of the second flow channel 222 of the second heat exchanger 22 is connected through a pipeline with the rear end of the outlet of the second fluid channel 102 of the subcooled water heat exchanger 10, and a third valve 26 is arranged on the pipeline; a fourth valve 261 is arranged at the front end of the inlet of the ice crystal anti-propagator 24.

[0044] Specifically, the cold source 1 provides cooling capacity for the system. It can adopt different cooling methods and correspondingly use different cooling media. For example, it can be composed of an ice-making host and an ethylene glycol pump. At this time, the loop formed by the cold source 1 and the subcooled water heat exchanger 10 is an ethylene glycol loop; it can also be composed of a compressor 11, a condenser 12, and a throttling device 13. At this time, the loop formed by the cold source 1 and the subcooled water heat exchanger 10 is a refrigerant loop, which utilizes the return water of the user's air-conditioning chilled water to recover the cooling capacity and avoid waste of cooling capacity.

[0045] The water discharged from the ice storage tank 3 is discharged through its first water outlet. After being filtered by the ice crystal filter 20 in sequence, it is heated through the first flow channel 211 of the first heat exchanger 21, absorbs the heat of the heat source and is further heated through the second flow channel 222 of the second heat exchanger 22, and finally cools down through the third flow channel 212 of the first heat exchanger 21 (the heating amplitude of the first flow channel 211 and the cooling amplitude of the third flow channel 212 in the first heat exchanger are the same), thereby effectively eliminating ice crystals and preventing blockage of the subcooled water heat exchanger.

[0046] The second heat exchanger 22 and the ice crystal anti-propagator 24 are connected in series. A first bypass branch is added between them, a first valve 242 is arranged on their series pipeline, and a second valve 241 is arranged on the first bypass branch. A third valve 26 is arranged between the front end of the inlet of the second flow channel 222 and the rear end of the outlet of the second fluid channel 102, and a fourth valve 261 is arranged at the front end of the inlet of the ice crystal anti-propagator 24.

[0047] Since the subcooled water plate heat exchanger needs to be self-cleaned regularly to prevent ice crystal blockage in the heat exchanger, using the above pipelines and valves, the external heat source can be directly used to melt the possible ice crystals in the plate heat exchanger. The operation method in its ice melting mode is as follows:

[0048] Since the cold source 1 generally does not start frequently during operation and is in a continuous operation state. During actual operation, the frequency of the cold source 1 is adjusted to low-frequency operation, the third valve 26 and the second valve 241 are controlled to be closed and connected, and the fourth valve 261 and the first valve 242 are controlled to be disconnected, that is, as Figure 2 shown in the connection mode in the ice melting mode (the solid line in the figure indicates pipeline connection, and the dotted line indicates pipeline disconnection). Heat is provided through the second heat exchanger 22 by the external heat source to heat the medium in the loop of the second fluid channel 102 passing through the subcooled water heat exchanger 10, thereby achieving the ice melting effect.

[0049] Furthermore, there can be multiple ice-making loops, which can realize ice removal in some loops and ice making in some loops. The operation method is as Figure 3 shown. It realizes the ice making and ice removal modes at the same time. In the Figure 3 structure, the upper loop is the working ice-making loop, and the lower loop is the ice melting loop.

[0050] It can be seen that for the dynamic ice storage cooling system using the heat regeneration method to eliminate ice crystals provided by the present utility model, the water discharged from the ice storage tank 3 is heated through the first flow channel 211 of the first heat exchanger 21, further heated by absorbing the heat of the heat source through the second heat exchanger 22, and finally cooled through the third flow channel 212 of the first heat exchanger 21 (the heating and cooling amplitudes through the first heat exchanger are the same), thereby effectively eliminating ice crystals and preventing the clogging of the subcooled water heat exchanger; the chilled water return of the user's air conditioner is utilized to recover cold energy, avoiding the waste of cooling capacity; through the control of each valve, the medium in the second flow channel 222, the third flow channel 212 and the second fluid channel 102 loop can be heated by using an external heat source, preventing the clogging of ice crystals in the subcooled water heat exchanger, and realizing regular self-cleaning.

[0051] In one embodiment of the present utility model, the second water outlet of the ice storage tank 3, the fifth flow channel 321 of the user heat exchanger 32, and the water inlet of the ice storage tank 3 are sequentially connected by pipelines, and an ice melting pump 31 is arranged on the pipeline; the fourth flow channel 221 of the second heat exchanger 22 is connected in series with the sixth flow channel 322 of the user heat exchanger 32 to the first user 51. Specifically, as Figure 4 shown, a second water outlet is added to the ice storage tank 3, and the user heat exchanger 32 is used to exchange heat with the medium circulating between the second heat exchanger 22 and the first user. In this embodiment, when the ice crystal anti-propagator 24 of the system and the second heat exchanger 22 are connected in series with the user heat exchanger 32, the cascaded utilization of cold energy can be realized, improving the system performance.

[0052] In one embodiment of the present utility model, the cold source 1 further includes a compressor 11, a condenser 12 and a throttling device 13; the compressor 11, the condenser 12, the fourth flow channel 221 of the second heat exchanger 22, the throttling device 13, and the first fluid channel 101 of the subcooled water heat exchanger 10 are connected through a refrigerant loop. Specifically, as Figure 5 shown, the cold source is specifically provided by the compressor 11, the condenser 12 and the throttling device 13. By placing the second heat exchanger 22 and the ice crystal anti-propagator 24 in the subcooled section of the cold source, the recovery of cold energy can be realized in the refrigeration cycle through the heat exchange between the second heat exchanger 22 and the subcooled water heat exchanger 10, and the structure is simpler.

[0053] In one embodiment of the present utility model, the fourth flow channel 221 of the second heat exchanger 22 is provided with a second bypass branch on the refrigerant loop, and a fifth valve 14 is arranged on the second bypass branch. Specifically, as Figure 6 shown, one end of the second bypass branch is connected between the condenser 12 and the fourth flow channel 221, and the other end is connected between the throttling device 13 and the fourth flow channel 221. Through the second bypass branch and the fifth valve, the refrigerant flow rate entering the second heat exchanger can be adjusted.

[0054] In one embodiment of the present utility model, the second water outlet of the ice storage tank 3, the fifth flow channel 321 of the user heat exchanger 32, and the water inlet of the ice storage tank 3 are sequentially connected by pipelines, and an ice melting pump 31 is arranged on the pipelines; the sixth flow channel 322 of the user heat exchanger 32 is connected to the first user 51; the fourth flow channel 221 of the second heat exchanger 22 is connected to the second user 52. Specifically, as Figure 7 shown, through the user heat exchanger 32, the ice storage tank 3 is used to exchange heat and supply cold to the first user 51, and the medium-temperature return water can also be used as a heat source through the second heat exchanger 22 and supplied to the second user 52. In this embodiment, there is a second user 52 connected to the second heat exchanger 22 and the ice crystal anti-propagation device 24. This user can be a medium-temperature heat exchange unit in an air conditioner. Using the medium-temperature return water as a heat source, the recovery and direct utilization of cold energy can be achieved.

[0055] In one embodiment of the present utility model, the second user 52 is a medium-temperature cold water heat exchange unit of an air conditioner, which includes a medium-temperature heat exchanger 521, a medium-temperature chiller 522, and a water storage tank 523; the medium-temperature heat exchanger 521, the medium-temperature chiller 522, and the water storage tank 523 are connected by pipelines, and a water pump 524 is arranged on the pipelines; a third bypass branch is connected in parallel with the medium-temperature heat exchanger 521, and a sixth valve 41 is arranged on the third bypass branch; a fourth bypass branch is connected in parallel with the medium-temperature chiller 522, and a seventh valve 42 is arranged on the fourth bypass branch; the water storage tank 523 is connected in parallel with the fourth flow channel 221 of the second heat exchanger 22, an eighth valve 43 is arranged on the branch where the water storage tank 523 is located, and a ninth valve 44 is arranged on the branch where the second heat exchanger 22 is located. Specifically, as Figure 8 shown, the bypass of the medium-temperature heat exchanger 521 in the pipeline can be realized through the third bypass branch and the sixth valve 41, and the bypass of the medium-temperature chiller 522 in the pipeline can be realized through the fourth bypass branch and the seventh valve 42. In this embodiment, the second user is a medium-temperature cold water heat exchange unit of an air conditioner, which is specifically composed of a medium-temperature heat exchanger 521, a medium-temperature chiller 522, and a water storage tank 523, and can realize the cold storage of the medium-temperature water storage tank and the cascade medium-temperature cold water cooling treatment of the second heat exchanger + medium-temperature chiller or water storage tank + medium-temperature chiller.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A dynamic ice storage cooling system that uses the regenerative method to eliminate ice crystals, characterized in that, Comprising: A cold source (1), a subcooled water heat exchanger (10), an ice crystal filter (20), a first heat exchanger (21), a second heat exchanger (22), an ice crystal anti-propagator (24), a crystal promoter (25), and an ice storage tank (3); wherein, The subcooled water heat exchanger (10) includes: a first fluid passage (101) and a second fluid passage (102), and the cold source (1) is communicated with the first fluid passage (101); The first water outlet of the ice storage tank (3) is connected in sequence through pipelines with the ice crystal filter (20), the first flow passage (211) of the first heat exchanger (21), the second flow passage (222) of the second heat exchanger (22), the third flow passage (212) of the first heat exchanger (21), the second fluid passage (102), the ice crystal anti-propagator (24), the crystal promoter (25), and the ice slurry inlet of the ice storage tank (3) to form a loop, and an ice making pump (23) is arranged on the loop; The fourth flow passage (221) of the second heat exchanger (22) is connected in series with the ice crystal anti-propagator (24), a first valve (242) is arranged between the fourth flow passage (221) and the ice crystal anti-propagator (24), a first bypass branch communicated with the fourth flow passage (221) is arranged on the ice crystal anti-propagator (24), and a second valve (241) is arranged on the first bypass branch; The front end of the inlet of the second flow passage (222) of the second heat exchanger (22) is connected through a pipeline with the rear end of the outlet of the second fluid passage (102) of the subcooled water heat exchanger (10), and a third valve (26) is arranged on the pipeline; A fourth valve (261) is arranged at the front end of the inlet of the ice crystal anti-propagator (24).

2. The dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method according to claim 1, characterized in that, The second water outlet of the ice storage tank (3), the fifth flow passage (321) of the user heat exchanger (32), and the water inlet of the ice storage tank (3) are connected in sequence through pipelines, and a melting ice pump (31) is arranged on the pipeline; The fourth flow passage (221) of the second heat exchanger (22) is connected in series with the sixth flow passage (322) of the user heat exchanger (32) and connected to a first user (51).

3. The dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method according to claim 1, characterized in that, The cold source (1) further includes a compressor (11), a condenser (12), and a throttling device (13); The compressor (11), the condenser (12), the fourth flow passage (221) of the second heat exchanger (22), the throttling device (13), and the first fluid passage (101) of the subcooled water heat exchanger (10) are communicated through a refrigerant loop.

4. The dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method according to claim 3, wherein The fourth flow passage (221) of the second heat exchanger (22) is provided with a second bypass branch on the refrigerant loop, and a fifth valve (14) is arranged on the second bypass branch.

5. The dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method according to claim 1, wherein The second water outlet of the ice storage tank (3), the fifth flow passage (321) of the user heat exchanger (32), and the water inlet of the ice storage tank (3) are connected in sequence through pipelines, and a melting ice pump (31) is arranged on the pipeline; The sixth flow passage (322) of the user heat exchanger (32) is connected to a first user (51); The fourth flow passage (221) of the second heat exchanger (22) is connected to a second user (52).

6. The dynamic ice storage cooling system for eliminating ice crystals by using the regenerative method according to claim 5, characterized in that, The second user (52) is a medium-temperature chilled water heat exchange unit of the air conditioner, which includes a medium-temperature heat exchanger (521), a medium-temperature chiller (522), and a reservoir (523); The medium-temperature heat exchanger (521), the medium-temperature chiller (522), and the reservoir (523) are connected by pipelines, and a water pump (524) is arranged on the pipeline; The medium-temperature heat exchanger (521) is provided with a third bypass branch, and a sixth valve (41) is arranged on the third bypass branch; The medium-temperature chiller (522) is provided with a fourth bypass branch, and a seventh valve (42) is arranged on the fourth bypass branch; The reservoir (523) is connected in parallel with the fourth flow channel (221) of the second heat exchanger (22), and an eighth valve (43) is arranged on the branch where the reservoir (523) is located, and a ninth valve (44) is arranged on the branch where the second heat exchanger (22) is located.

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