A water storage direct cooling type circulating system

Abstract

The application relates to a circulating system of a water cold storage direct cooling type, belonging to the technical field of cold storage energy supply, which comprises a cooling unit, a circulating unit and a cold storage unit. The circulating unit is arranged on the cooling unit, and the cold storage unit is arranged on the cooling unit and the circulating unit. The cooling unit comprises a cooling tower, a cold water host, a water distributor, a water collector and an energy-saving air conditioner. A first pipe is arranged between the cooling tower and the cold water host, and the cooling tower is communicated with the cold water host through the first pipe. A second pipe is arranged between the cold water host and the water distributor, and the cold water host is communicated with the water distributor through the second pipe. A third pipe is arranged between the water distributor and the energy-saving air conditioner, and the water distributor is communicated with the energy-saving air conditioner through the third pipe. A fourth pipe is arranged between the energy-saving air conditioner and the water collector, and the energy-saving air conditioner is communicated with the water collector through the fourth pipe. The application has the technical effects of adapting to different cooling areas, improving mode switching stability and reducing pipeline leakage risks.

Description

Technical Field

[0001] This application relates to the technical field of cold storage and energy supply, and in particular to a water-based cold storage direct cooling circulation system. Background Technology

[0002] Water-based cold storage direct cooling systems are energy-saving air conditioning systems that rely on storing cold energy during off-peak electricity hours and releasing it during peak electricity hours. In this system, the storage and release pump is the core power component that switches between cold storage and release modes. Compared to cooling pumps and refrigeration pumps, which only undertake the task of continuous cooling capacity preparation, the storage and release pump has a significantly higher start-stop frequency and more complex operating conditions. Therefore, corresponding protection components need to be installed at the storage and release pump. Existing water-based cold storage direct cooling circulation systems often use simple pressure or flow protection structures for the storage and release pump, which are difficult to adapt to the complex operating conditions such as water hammer impact and pressure fluctuations caused by the high-frequency start-stop of the pump, resulting in delayed protection response. Furthermore, the connecting pipelines between the protection components and the storage and release pumps lack targeted vibration-resistant design, and are prone to problems such as loose pipe joints and seal failure due to long-term vibration from pump start-stop operation, leading to leakage faults.

[0003] Patent (CN 115307237 A) discloses a water-based cold storage direct cooling system, including a cooling tower, a cooling pump, a cooling host, a chilled water pump, a water distributor, a water collector, a central air conditioning system, a storage pump, and a check valve; the cooling tower is connected to the cooling host via water pipes; the cooling host is connected to the water distributor via water pipes; the water distributor is connected to the central air conditioning system via water pipes; the central air conditioning system is connected to the water collector via water pipes; the water collector is connected to the chilled water pump via water pipes; the chilled water pump is connected to the cooling host via water pipes; and the cooling host is connected to the cooling pump via water pipes. The aforementioned patents are sufficient to realize the basic cold storage and cold release cycle of the water-based cold storage direct cooling system, and to transfer the electricity load by utilizing the peak-valley electricity price difference to save energy and ensure stable cooling supply of central air conditioning; however, they are limited to basic cooling supply and cold capacity storage under normal operating conditions, and do not have targeted anti-vibration and leak prevention and precise protection design for the high-frequency start-stop storage and release pumps and connecting pipelines; they cannot effectively adapt to and control the water hammer impact, pressure fluctuations and loose pipeline joint leakage caused by the high-frequency start-stop of the storage and release pumps, which can easily lead to protection failure and decreased operational stability during system switching.

[0004] Regarding the aforementioned technologies, the inventors believe that they suffer from drawbacks such as easy loss of cooling capacity during transportation, inability to flexibly adapt to changes in different cooling areas and loads, and susceptibility to protection failures and pipeline leaks. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a water-based direct cooling circulation system.

[0006] This application provides a water-based direct cooling circulation system, which adopts the following technical solution:

[0007] A water-based direct cooling circulation system includes a cooling supply unit, a circulation unit, and a cold storage unit. The circulation unit is mounted on the cooling supply unit, and the cold storage unit is mounted on both the cooling supply unit and the circulation unit. The cooling supply unit includes a cooling tower, a chiller, a water distributor, a water collector, and an energy-saving air conditioner. A first pipe connects the cooling tower and the chiller, and the cooling tower is connected to the chiller via the first pipe. A second pipe connects the chiller and the water distributor, and the chiller is connected to the water distributor via the second pipe. A third pipe connects the water distributor and the energy-saving air conditioner via the third pipe. A fourth pipe connects the energy-saving air conditioner and the water collector, and the energy-saving air conditioner is connected to the water collector via the fourth pipe.

[0008] By adopting the above technical solution, the cooling tower, chiller, water distributor, energy-saving air conditioner, and water collector are connected in series via the first, second, third, and fourth pipes to construct a closed-loop cooling capacity transfer link. The low-temperature chilled water produced by the chiller can be directionally transported to the energy-saving air conditioner, and the return water after heat exchange can be collected and returned to the chiller for re-cooling via the water collector, avoiding the loss of cooling capacity during transportation and improving the utilization rate of cooling capacity. The functional boundaries of each component are clear, with the cooling tower focusing on heat dissipation and cooling of the chiller, ensuring that the chiller continuously and stably produces low-temperature chilled water. Water; the water distributor can evenly distribute low-temperature chilled water to each energy-saving air conditioner, solving the problem of uneven cooling demand in multiple areas; the water collector collects the heated return water in a unified manner, which is convenient for batch cooling processing by the chiller. The design of connecting the water distributor and the energy-saving air conditioner through a third pipe and connecting the energy-saving air conditioner and the water collector through a fourth pipe supports the flexible addition or reduction of energy-saving air conditioners. The number of energy-saving air conditioners can be added or reduced according to the actual cooling area and cooling load changes, without the need for large-scale modification of the core piping of the cooling unit, thus improving the system's adaptability to different application scenarios.

[0009] Preferably, the circulation unit includes a chilled water pump and a cooling water pump; a fifth pipe is provided between the water collector and the chilled water pump, and the water collector is connected to the chilled water pump through the fifth pipe; a sixth pipe is provided between the chilled water pump and the chiller, and the chilled water pump is connected to the chiller through the sixth pipe; a seventh pipe is provided between the cooling water pump and the chiller, and the cooling water pump is connected to the chiller through the seventh pipe; an eighth pipe is provided between the cooling water pump and the cooling tower, and the cooling water pump is connected to the cooling tower through the eighth pipe.

[0010] By adopting the above technical solution, the chilled water pump forms a chilled-side power circulation through the fifth and sixth pipes, providing driving force for the delivery of return water from the water collector to the chiller, ensuring that the heated return water quickly flows back to the chiller for cooling, thus improving the chilled water preparation efficiency. The cooling pump forms a cooling-side power circulation through the seventh and eighth pipes, driving the high-temperature cooling medium in the chiller to flow to the cooling tower for heat dissipation, ensuring that the chiller maintains a stable refrigeration condition. The dual circulation operates independently, avoiding mutual interference between cold energy delivery and heat dissipation, thus improving the overall operating efficiency of the system. The chilled water pump and the cooling pump provide power for different media circulations, solving the problems of slow media flow rate and limited delivery distance under natural circulation, and meeting the needs of large-scale, long-distance cooling.

[0011] Preferably, the cold storage unit includes a storage pump and a cold storage tank; a pipe A is provided on the second pipe, one end of which is connected to the chiller unit through the second pipe, and the other end of which is divided into A branch and A2 branch; the storage pump is provided with pipes B and C and a protection component, one end of which is connected to the storage pump through the protection component, and the other end of which is divided into B branch and B2 branch, B branch being connected to the chiller unit through a sixth pipe, and B2 branch being connected to the water distributor; one end of pipe C is connected to the storage pump, and the other end of which is divided into C branch and C2 branch, C branch and C2 branch being respectively connected to the cold storage tank; A branch is connected to the cold storage tank through C branch, and A2 branch is connected to the cold storage tank through C2 branch; a pipe D is provided on the water collector, and the water collector is connected to pipe A through pipe D.

[0012] By adopting the above technical solution, relying on the cold storage capacity of the cold storage tank, the chiller can be driven to operate at full load during off-peak electricity periods, and excess cold energy can be stored in the cold storage tank through branch A of pipeline A and branch C of pipeline C. During peak electricity periods, the cold energy in the cold storage tank is transported to the water distributor through branch C, branch A, or branch B of pipeline B via the storage pump, directly supplying cooling for energy-saving air conditioners, or supplementing the chiller's inlet through branch B, reducing the operating load of the chiller during peak periods. The system significantly reduces peak electricity costs and enables precise control of system operating costs. The two branches of pipe A and pipe C form independent channels for cold storage and release, which, together with the two branches of pipe B, allow for seamless switching between three operating conditions: cold storage, cold release, and conventional cooling. At the same time, the water collector is connected to pipe A through pipe D, which allows heated return water to be introduced into pipe A to mix with low-temperature cold water, precisely controlling the cooling water temperature to meet the temperature requirements of different energy-saving air conditioners and improving the comfort and stability of cooling.

[0013] Preferably, valve A is installed on branch C, and valve D is installed on branch C2; valve B is installed on branch A, and valve C is installed on branch A2; a temperature regulating valve is installed between pipe A and pipe B, and pipe A is connected to pipe B through the temperature regulating valve; valve F is installed at one end of pipe A; an anti-backflow structure is installed in pipe A between valve F and the temperature regulating valve; valve G is installed on branch B, and a check valve is installed at one end of pipe B; valve E is installed on branch B2; valve H is installed on the sixth pipe between the chilled pump and branch B; valve Z is installed on the second pipe between the water distributor and pipe A; and a proportional valve is installed on pipe D.

[0014] By adopting the above technical solutions, the on / off coordination of valves A, B, C, and D can precisely control the switching of cold storage and cold release channels in the cold storage tank: during cold storage, valves A and B are opened, and valves C and D are closed, allowing low-temperature cold water to flow into the cold storage tank in a directional manner; during cold release, valves C and D are opened, and valves A and B are closed, allowing the cold energy in the cold storage tank to be output in a directional manner; the coordinated control of valves E, G, H, Z, and F can achieve seamless switching between multiple modes such as conventional cooling, cold storage cooling, and cold release cooling, adapting to the cooling demand at different times and improving the flexibility of system operation; the temperature regulating valve monitors the medium temperature of pipes A and B in real time, dynamically adjusts the mixing ratio of the two media, and precisely controls the cooling water temperature, avoiding the impact of water temperature fluctuations on the user experience of energy-saving air conditioners; the proportional valve on pipe D can adjust the return flow ratio of the water collector, further optimizing the medium temperature in pipe A, achieving refined control of cooling parameters, and improving the stability and comfort of the system's cooling supply.

[0015] Preferably, the protective component includes a housing, an inner tube, a separation connection structure, and a sealing mechanism; one end of the housing is provided with a water inlet, and the other end of the housing is provided with a water outlet; the sealing mechanism is provided at the water inlet; one end of the inner tube is provided at the water inlet through the sealing mechanism; the other end of the inner tube is circular, and the other end of the inner tube is provided with a separation connection structure; the inner end of the water outlet is configured to fit with the other end of the inner tube.

[0016] By adopting the above technical solution, the sealing mechanism at the inlet can achieve a tight fit between the inner tube and the inlet, preventing media leakage from the inlet end; the circular structure at the other end of the inner tube matches the shape of the outlet, and with the support of the separation connection structure, it can achieve precise docking and sealing between the inner tube and the outlet, forming a double sealing protection at the inlet and outlet ends, greatly reducing the risk of leakage during media transportation and improving the reliability of system operation; the matching design of the circular structure at the other end of the inner tube and the outlet provides a structural basis for the rapid docking and separation of the inner tube and the outlet; with the driving action of the separation connection structure, a tight seal can be maintained under normal operating conditions, and rapid separation and flow interruption can be achieved under abnormal operating conditions.

[0017] Preferably, the sealing mechanism includes an installation sleeve and a first sealing ring; the installation sleeve is fixedly disposed at the water inlet, and a plurality of inlets are arranged circumferentially at one end of the installation sleeve; the first sealing ring is fixedly disposed inside the installation sleeve, and a first bladder is disposed inside the first sealing ring; a plurality of first interfaces are arranged circumferentially at one end of the first sealing ring, and the first interfaces are disposed on the inlets.

[0018] By adopting the above technical solution, the multiple inlets circumferentially arranged on the mounting sleeve can evenly distribute the medium to the first interface of the first sealing ring. The medium pressure directly acts on the first bladder inside the first sealing ring, causing the first bladder to expand adaptively with the medium pressure, tightly fitting the outer wall of the inner tube. The sealing tightness can be dynamically adjusted according to the medium pressure, effectively avoiding leakage problems caused by pressure fluctuations and improving sealing stability. The multiple inlets circumferentially arranged on the mounting sleeve can evenly guide the medium entering the shell into the sealing mechanism, avoiding the problems of uneven medium flow rate and excessively high local pressure caused by a single inlet. At the same time, the diversion design can reduce the resistance of the medium flowing through the sealing mechanism, ensuring the medium delivery efficiency and avoiding the increase in system energy consumption caused by the sealing structure.

[0019] Preferably, the separation connection structure includes a drive cylinder, a float, a drive rod, and a second sealing ring; the second sealing ring is disposed on the circular surface at the other end of the inner tube; the drive cylinder is disposed at one end of the inner tube near the outlet pipe, one end of the drive rod is slidably disposed within the drive cylinder, and the float is fixedly disposed at the other end of the drive rod; a second bladder is disposed inside the second sealing ring, and multiple sets of second interfaces are disposed on the second sealing ring, the second bladder communicating with the drive cylinder through the second interfaces.

[0020] By adopting the above technical solution, the float can sense changes in the liquid level of the medium inside the shell in real time, directly converting the buoyancy signal of the liquid level into driving force to complete the sealing and separation actions. Under normal operating conditions, the float is in a balanced position, the drive cylinder maintains the filling state of the second bladder, and the expansion of the second sealing ring achieves a tight seal between the inner tube and the outlet. Under abnormal operating conditions, the rise and fall of the liquid level causes the float to move, triggering the drive cylinder to move through the drive rod, realizing the contraction of the sealing ring and the rapid separation of the inner tube. The second bladder built into the second sealing ring is connected to the drive cylinder, and the sealing tightness can be dynamically adjusted according to the medium pressure of the drive cylinder. Compared with the traditional fixed sealing structure, it can better adapt to the fitting gap between the inner tube and the outlet, avoiding sealing failure caused by installation errors or equipment wear. At the same time, the circular surface design of the second sealing ring that fits the end of the inner tube can form an annular sealing band, which greatly improves the sealing area and sealing effect, and reduces the risk of medium leakage.

[0021] Preferably, the interior of the drive cylinder is divided into a first cavity, a sliding cavity, and a second cavity from top to bottom; one end of the drive rod is disposed in the sliding cavity; a first block is slidably disposed in the first cavity, with one end of the first block disposed in the sliding cavity; a first spring is sleeved on the first block, with one end of the first spring fixedly disposed at one end of the first block and the other end of the first spring fixedly disposed on the inner wall of the sliding cavity; the first cavity is connected to the second bladder through a set of second interfaces; a second block is slidably disposed in the second cavity, with one end of the second block disposed in the sliding cavity; a second spring is sleeved on the second block, with one end of the second spring fixedly disposed at one end of the second block and the other end of the second spring fixedly disposed on the inner wall of the sliding cavity; the second cavity is connected to the second bladder through another set of second interfaces.

[0022] By adopting the above technical solution, the drive cylinder is divided into a first cavity, a sliding cavity, and a second cavity from top to bottom, corresponding to two fault scenarios: the water level rises due to leakage in the inner tube and the water level falls due to leakage in the outer shell. When the inner tube leaks and causes the float to rise, the drive rod pushes the first piece to compress the first spring, squeezing the medium in the first cavity into the second bladder, triggering the contraction of the second sealing ring. When the outer shell leaks and causes the float to sink, the drive rod drives the second piece to compress the second spring, squeezing the medium in the second cavity into the second bladder, similarly achieving the contraction of the sealing ring. The first spring and the second spring provide reset power for the first and second pieces, respectively. When the system returns to normal operating conditions, that is, when the water level in the outer shell returns to the preset value, the spring's rebound force can push the slider to reset, allowing the medium in the cavity to flow back into the second bladder, causing the second sealing ring to re-expand and re-seal.

[0023] Preferably, the anti-backflow structure includes an anti-backflow pipe, a valve pipe, a one-way block, and a closing spring; the one-way block is slidably disposed inside the valve pipe, one end of the closing spring is fixedly disposed inside the valve pipe, the other end of the closing spring is fixedly disposed at one end of the one-way block, and the other end of the one-way block abuts against one end of the valve pipe; the valve pipe is fixedly disposed inside the anti-backflow pipe, and the anti-backflow pipe is disposed on pipeline A; one end of the valve pipe is provided with a locking cavity, and the inner end of the locking cavity is provided with a locking groove; a locking rod and a locking spring are disposed inside the locking cavity, one end of the locking rod is slidably disposed inside the locking groove, one end of the locking spring is fixedly disposed at the inner end of the locking cavity, and the other end of the locking spring is fixedly disposed at one end of the locking rod; the bottom of the other end of the locking rod is provided with a snap-fit ​​groove, a snap-fit ​​spring is disposed inside the snap-fit ​​groove, and a snap-fit ​​block is disposed on the snap-fit ​​spring; the top of the other end of the locking rod is a mating slope.

[0024] By adopting the above technical solution, during normal forward flow, the closing spring and the one-way block form a basic one-way seal to prevent the medium from flowing backward. When backflow occurs, not only can the closing spring push the one-way block to quickly press against the valve pipe port to block the channel, but the linkage between the locking rod and the snap-fit ​​block can also achieve secondary locking. The snap-fit ​​block pops out under the action of the snap-fit ​​spring and snaps into the locking groove of the indicator rod, so that the one-way block cannot be pushed open by the reverse water flow. Compared with a single one-way valve structure, the protection is more thorough and can effectively prevent backflow from causing impact damage to core equipment such as chiller and cold storage tank. The entire structure relies on water pressure and spring force to achieve automatic triggering.

[0025] Preferably, the other end of the one-way block is provided with an identification structure including a backflow groove, a backflow cavity, and an identification rod; the backflow groove is located at the other end of the one-way block, the backflow cavity is longitudinally located within the one-way block, and the backflow cavity communicates with the backflow groove; one end of the identification rod is slidably located within the backflow cavity, one side of the identification rod abuts against a locking rod, and one side of the other end of the identification rod is provided with a mating groove, the top of the mating groove is an unlocking slope, and the bottom of the mating groove is provided with a locking groove; the top of the identification rod passes through the anti-tipping tube, and the identification rod is slidably connected to the anti-tipping tube.

[0026] By adopting the above technical solution, the interconnected design of the backflow groove and the backflow cavity allows for rapid guidance of reverse water flow into the backflow cavity and upward movement of the indicator rod when backflow occurs. The top of the indicator rod passes through an anti-backflow pipe, allowing direct observation of the indicator rod's extension status to determine if a backflow fault has occurred in the pipeline. The matching groove of the indicator rod and the matching slope of the locking rod are precisely matched. As the indicator rod moves upward with the backflow pressure, the slope can be used to drive the locking rod, triggering the locking block to engage with the locking groove and complete the locking process, completely eliminating the risk of reverse water flow opening the one-way block. The unlocking slope at the top of the matching groove matches the matching slope of the locking rod. After the backflow fault is cleared, pressing the top of the indicator rod will cause the locking block to retract through the slope, releasing the locking rod's restriction on the indicator rod. Simultaneously, the indicator rod's reset will release the pressure in the backflow cavity, restoring the one-way block to its sliding state.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Utilizing the cold storage capacity of the cold storage tank, the chiller can operate at full load during off-peak electricity hours, storing excess cooling capacity in the cold storage tank via branch A of pipe A and branch C of pipe C. During peak electricity hours, the cooling capacity in the cold storage tank is pumped through branch C, branch A, or branch B of pipe B to the water distributor, directly supplying cooling for energy-saving air conditioners, or supplementing the chiller's inlet via branch B, thus reducing the chiller's operating load during peak hours and significantly reducing cooling efficiency. Reduce peak electricity costs and achieve refined management of system operating costs; the two branches of pipe A and pipe C form independent channels for cold storage and cold release, which, together with the two branches of pipe B, can achieve seamless switching between three operating conditions: cold storage, cold release, and conventional cooling; at the same time, the water collector is connected to pipe A through pipe D, which can introduce heated return water into pipe A to mix with low-temperature cold water, accurately regulate the cooling water temperature, adapt to the temperature requirements of different energy-saving air conditioners, and improve the comfort and stability of cooling.

[0029] 2. The sealing mechanism at the inlet ensures a tight fit between the inner tube and the inlet, preventing media leakage from the inlet end. The circular structure at the other end of the inner tube matches the shape of the outlet, and combined with the separation connection structure, it enables precise docking and sealing between the inner tube and the outlet, forming a double-seal protection at both the inlet and outlet ends. This significantly reduces the risk of leakage during media transportation and improves the reliability of system operation. The matching design of the circular structure at the other end of the inner tube and the outlet provides a structural basis for the rapid docking and separation of the inner tube and the outlet. With the driving action of the separation connection structure, a tight seal can be maintained under normal operating conditions, and rapid separation and flow interruption can be achieved under abnormal operating conditions. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0031] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the protective component in the embodiment.

[0032] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0033] Figure 4 yes Figure 3 A magnified view of part B in the middle.

[0034] Figure 5 This is a cross-sectional schematic diagram of the anti-backflow structure in the embodiment.

[0035] Figure 6 yes Figure 5 A magnified view of part C in the middle.

[0036] Explanation of reference numerals in the attached diagram: 1. Cooling unit; 11. Cooling tower; 111. First pipe; 12. Chiller; 121. Second pipe; 1211. Valve Z; 13. Distributor; 131. Third pipe; 14. Collector; 141. Fifth pipe; 15. Energy-saving air conditioner; 151. Fourth pipe; 2. Circulation unit; 21. Chilled water pump; 211. Sixth pipe; 2111. Valve H; 22. Cooling pump; 221. Seventh pipe; 222. Eighth pipe; 3. Cold storage unit; 31. Storage pump; 32. Cold storage tank; 33. Pipe Route A; 331, Branch A; 3311, Valve B; 332, Branch A II; 3321, Valve C; 333, Valve F; 34, Pipeline B; 341, Branch B; 3411, Valve G; 342, Branch B II; 3421, Valve E; 3412, Check Valve; 35, Pipeline C; 351, Branch C; 3511, Valve A; 352, Branch C II; 3521, Valve D; 36, Pipeline D; 361, Proportional Valve; 37, Temperature Control Valve; 4, Protection Components; 41, Housing; 411. Inlet; 412. Outlet; 42. Inner pipe; 43. Separation connection structure; 431. Drive cylinder; 4311. First cavity; 4312. Sliding cavity; 4313. Second cavity; 4314. First block; 4315. First spring; 4316. Second block; 4317. Second spring; 432. Float; 433. Drive rod; 434. Second sealing ring; 4341. Second bladder; 4342. Second interface; 44. Sealing mechanism; 441. Mounting sleeve; 4411. Inlet; 442, First sealing ring; 4421, First bladder body; 4422, First interface; 5, Anti-backflow structure; 51, Anti-backflow pipe; 52, Valve pipe; 521, Locking cavity; 5211, Locking groove; 522, Locking rod; 5221, Snap-fit ​​groove; 5222, Snap-fit ​​spring; 5223, Snap-fit ​​block; 523, Locking spring; 53, One-way block; 54, Closing spring; 55, Identification structure; 551, Backflow groove; 552, Backflow cavity; 553, Identification rod; 5531, Fitting groove; 5532, Locking groove. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0038] This application discloses a water-based direct cooling circulation system. (See also...) Figure 1The system includes a cooling unit 1, a circulation unit 2, and a cold storage unit 3. The circulation unit 2 is installed on the cooling unit 1, and the cold storage unit 3 is installed on both the cooling unit 1 and the circulation unit 2. The cooling unit 1 includes a cooling tower 11, a chiller 12, a water distributor 13, a water collector 14, and an energy-saving air conditioner 15. A first pipe 111 is installed between the cooling tower 11 and the chiller 12, and the cooling tower 11 is connected to the chiller 12 through the first pipe 111. A second pipe 121 is installed between the chiller 12 and the water distributor 13, and the chiller 12 is connected to the water distributor 13 through the second pipe 121. A third pipe 131 is installed between the water distributor 13 and the energy-saving air conditioner 15, and the water distributor 13 is connected to the energy-saving air conditioner 15 through the third pipe 131. A fourth pipe 151 is installed between the energy-saving air conditioner 15 and the water collector 14, and the energy-saving air conditioner 15 is connected to the water collector 14 through the fourth pipe 151.

[0039] The circulation unit 2 includes a chilled water pump 21 and a cooling water pump 22; a fifth pipe 141 is provided between the water collector 14 and the chilled water pump 21, and the water collector 14 is connected to the chilled water pump 21 through the fifth pipe 141; a sixth pipe 211 is provided between the chilled water pump 21 and the chiller 12, and the chilled water pump 21 is connected to the chiller 12 through the sixth pipe 211; a seventh pipe 221 is provided between the cooling water pump 22 and the chiller 12, and the cooling water pump 22 is connected to the chiller 12 through the seventh pipe 221; an eighth pipe 222 is provided between the cooling water pump 22 and the cooling tower 11, and the cooling water pump 22 is connected to the cooling tower 11 through the eighth pipe 222; the cold storage unit 3 includes a cold storage pump 31 and a cold storage tank 32; a pipe A33 is provided on the second pipe 121, one end of the pipe A33 is connected to the chiller 12 through the second pipe 121, and the other end of the pipe A33 is divided into a branch A 331 and a second branch A. 332; The storage pump 31 is equipped with pipes B34 and C35 and a protection component 4. One end of pipe B34 is connected to the storage pump 31 through the protection component 4, and the other end of pipe B34 is divided into branch B 341 and branch B 342. Branch B 341 is connected to the chiller 12 through the sixth pipe 211, and branch B 342 is connected to the distributor 13; one end of pipe C35 is connected to the storage pump 31, and the pipes... The other end of C35 is divided into C branch 351 and C second branch 352, which are respectively connected to the cold storage tank 32; A branch 331 is connected to the cold storage tank 32 through C branch 351, and A second branch 332 is connected to the cold storage tank 32 through C second branch 352; a pipe D36 is provided on the water collector 14, and the water collector 14 is connected to the pipe A33 through the pipe D36;

[0040] Valve A3511 is installed on branch line C 351, and valve D3521 is installed on branch line C 352; valve B3311 is installed on branch line A 331, and valve C3321 is installed on branch line A 332; a temperature regulating valve 37 is installed between pipe A33 and pipe B34, and pipe A33 is connected to pipe B34 through the temperature regulating valve 37; valve F333 is installed at one end of pipe A33; valve F333 and temperature regulating valve 37 are connected... A backflow prevention structure 5 is installed in pipeline A33; valve G3411 is installed on branch line B341; check valve 3412 is installed at one end of pipeline B34; valve E3421 is installed on branch line B242; valve H2111 is installed on the sixth pipe 211 between chilled pump 21 and branch line B341; valve Z1211 is installed on the second pipe 121 between distributor 13 and pipeline A33; proportional valve 361 is installed on pipeline D36.

[0041] Reference Figure 2 , Figure 3 and Figure 4 The protective component 4 includes a housing 41, an inner tube 42, a separation connection structure 43, and a sealing mechanism 44. One end of the housing 41 has an inlet 411, and the other end has an outlet 412. The sealing mechanism 44 is located at the inlet 411. One end of the inner tube 42 is located at the inlet 411 via the sealing mechanism 44. The other end of the inner tube 42 is circular, and the separation connection structure 43 is located at the other end of the inner tube 42. The inner end of the outlet 412 is shaped to mate with the other end of the inner tube 42. The sealing mechanism 44 includes a mounting sleeve 441 and a first sealing ring 442. The mounting sleeve 441 is fixedly located at the inlet 411, and multiple sets of inlets 4411 are circumferentially arranged at one end of the mounting sleeve 441. The first sealing ring 442 is fixedly located... Inside the mounting sleeve 441, a first bladder 4421 is provided inside the first sealing ring 442. Multiple sets of first interfaces 4422 are circumferentially arranged at one end of the first sealing ring 442, and the first interfaces 4422 are located on the inlet 4411. The medium flows in from the water inlet 411 of the outer shell 41 and enters the component through the circumferential inlet 4411 of the mounting sleeve 441. The first bladder 4421 inside the first sealing ring 442 is connected to the inlet 4411 through the first interfaces 4422. The medium pressure causes the first bladder 4421 to expand and tightly fit the outer wall of the inner tube 42, achieving the initial seal between the water inlet 411 and the inner tube 42. The circular end of the other end of the inner tube 42 is mated with the internal shape of the water outlet 412, and the separation connection structure 43 fits the end face of the water outlet 412.

[0042] The separation connection structure 43 includes a drive cylinder 431, a float 432, a drive rod 433, and a second sealing ring 434. The second sealing ring 434 is disposed on the circular surface at the other end of the inner tube 42. The drive cylinder 431 is disposed at the end of the inner tube 42 near the outlet pipe. One end of the drive rod 433 is slidably disposed inside the drive cylinder 431, and the float 432 is fixedly disposed at the other end of the drive rod 433. A second bladder 4341 is disposed inside the second sealing ring 434. Multiple sets of second interfaces 4342 are disposed on the second sealing ring 434. The second bladder 4341 communicates with the drive cylinder 431 through the second interfaces 4342. The interior of the drive cylinder 431 is divided into a first cavity 4311, a sliding cavity 4312, and a second cavity 4313 from top to bottom. One end of the drive rod 433 is disposed inside the sliding cavity 4312. A first block is slidably disposed inside the first cavity 4311. 4314, one end of the first block 4314 is disposed within a sliding cavity 4312; a first spring 4315 is sleeved on the first block 4314, one end of the first spring 4315 is fixedly disposed at one end of the first block 4314, and the other end of the first spring 4315 is fixedly disposed on the inner wall of the sliding cavity 4312; the first cavity 4311 is connected to the second bladder 4341 through a set of second interfaces 4342; a second block 4316 is slidably disposed within the second cavity 4313, one end of the second block 4316 is disposed within the sliding cavity 4312; a second spring 4317 is sleeved on the second block 4316, one end of the second spring 4317 is fixedly disposed at one end of the second block 4316, and the other end of the second spring 4317 is fixedly disposed on the inner wall of the sliding cavity 4312; the second cavity 4313 is connected to the second bladder 4341 through another set of second interfaces 4342.

[0043] When the liquid level of the medium inside the outer casing 41 is maintained at a preset value, the float 432 is in a balanced position, neither pushing the first block 4314 upward nor pressing the second block 4316 downward. At this time, the first spring 4315 and the second spring 4317 of the drive cylinder 431 remain in their natural state, and there is no medium compression in the first cavity 4311 and the second cavity 4313. The second bladder 4341 inside the second sealing ring 434 remains in a full state, causing the second sealing ring 434 to expand, so that the circular surface at the other end of the inner tube 42 is tightly fitted with the outlet 412; at the same time, the first sealing ring at the inlet 411... The sleeve 442 fits snugly against the outer wall of the inner tube 42, achieving both a leak-proof seal and providing a limit for the floating margin of the inner tube 42. The medium flows in through the inlet 411, passes through the inlet 4411 of the sleeve 441 and the inner tube 42, and flows out stably from the outlet 412, completing normal transport. If the inner tube 42 leaks, the liquid level of the medium inside the outer shell 41 rises rapidly, and the buoyancy causes the float 432 to float upwards. The float 432, through the drive rod 433, pushes the first block 4314 to compress the first spring 4315, causing the medium in the first cavity 4311 to flow back to the second chamber 4341 through the second interface 4342, resulting in… The second bladder 4341 contracts, and the second sealing ring 434 shrinks accordingly. The sealing fit between the other end of the inner tube 42 and the outlet 412 is released and loosened. The buoyancy generated by the continuous rise in liquid level further lifts the entire inner tube 42 upward, causing the other end of the inner tube 42 to completely detach from the outlet 412, blocking the medium outflow path and achieving automatic flow interruption protection in the event of leakage. During this process, the first sealing ring 442 undergoes adaptive deformation as the inner tube 42 floats upward, always maintaining a close and fixed fit to the inner tube 42. If the outer shell 41 leaks, the internal medium level drops rapidly, and the float 432 slides down with the liquid level and moves towards the outlet 412. The second piece 4316 is pressed down, and the second piece 4316 compresses the second spring 4317, causing the medium in the second cavity 4313 to flow back to the second bladder 4341 through the second interface 4342. The second bladder 4341 contracts, causing the second sealing ring 434 to shrink. The other end of the inner tube 42 is loosened from the outlet 412. The liquid level continues to drop, causing the inner tube 42 to lose buoyancy support and float downward. The other end of the inner tube 42 is completely separated from the outlet 412, cutting off the medium outflow path and preventing the leakage from aggravating. At the same time, the first sealing ring 442 deforms as the inner tube 42 slides down, maintaining the fixing and sealing effect on the inner tube 42.

[0044] Reference Figure 5 and Figure 6The anti-backflow structure 5 includes an anti-backflow pipe 51, a valve pipe 52, a one-way block 53, and a closing spring 54. The one-way block 53 is slidably disposed inside the valve pipe 52. One end of the closing spring 54 is fixedly disposed inside the valve pipe 52, and the other end of the closing spring 54 is fixedly disposed at one end of the one-way block 53. The other end of the one-way block 53 abuts against one end of the valve pipe 52. The valve pipe 52 is fixedly disposed inside the anti-backflow pipe 51, which is disposed on pipeline A33. One end of the valve pipe 52 is provided with a locking cavity 521, and the inner end of the locking cavity 521 is provided with a locking groove 5211. The locking cavity 521 is provided with a locking rod 522 and a locking spring 523. One end of the locking rod 522 is slidably disposed inside the locking groove 5211, and one end of the locking spring 523 is fixedly disposed at the inner end of the locking cavity 521. The other end of the locking rod 522 is fixedly disposed at one end of the locking rod 522. There is a snap-fit ​​groove 5221, and a snap-fit ​​spring 5222 is installed inside the snap-fit ​​groove 5221. A snap-fit ​​block 5223 is installed on the snap-fit ​​spring 5222. The top of the other end of the locking rod 522 is a mating slope. The other end of the one-way block 53 is provided with an identification structure 55, including a backflow groove 551, a backflow cavity 552, and an identification rod 553. The backflow groove 551 is located at the other end of the one-way block 53, and the backflow cavity 552 is longitudinally arranged inside the one-way block 53 to facilitate backflow. The cavity 552 is connected to the backflow groove 551; one end of the indicator rod 553 is slidably disposed in the backflow cavity 552, one side of the indicator rod 553 abuts against the locking rod 522, and one side of the other end of the indicator rod 553 is provided with a mating groove 5531, the top of the mating groove 5531 is an unlocking slope, and the bottom of the mating groove 5531 is provided with a locking groove 5532; the top end of the indicator rod 553 passes through the anti-tipping tube 51, and the indicator rod 553 is slidably connected to the anti-tipping tube 51.

[0045] When the medium flows forward in pipe A33, the medium pressure pushes the one-way block 53 to compress the closing spring 54, and the one-way block 53 slides into the valve pipe 52. The valve pipe 52 channel is fully open, and at this time, no reverse medium flows into the backflow groove 551 of the one-way block 53. The backflow chamber 552 is in an empty state, and the indicator rod 553 remains in its initial low position. If backflow occurs in pipe A33, the reverse water flow will flow into the backflow groove 551 at the other end of the one-way block 53. The pressure inside cavity 552 suddenly increases, pushing the marker rod 553 to slide upward along the anti-tipping tube 51. During the upward movement of the marker rod 553, the unlocking slope of the mating groove 5531 on the marker rod 553 contacts the mating slope of the locking rod 522, squeezing the locking rod 522, compressing the locking spring 523, and retracting it into the locking groove 5211. When the marker rod 553 moves upward to the preset position, the locking block 5223 springs back under the action of the locking spring 5222. When the locking rod 522 engages with the locking groove 5532 of the mating groove 5531, locking is completed. Simultaneously, the return force of the closing spring 54 pushes the one-way block 53 back to its original position, and the other end of the one-way block 53 presses against the valve pipe 52 port, completely blocking the valve pipe 52 passage. The limiting effect of the locking component prevents the one-way block 53 from being pushed open by the reverse water flow, achieving complete blocking of media backflow. After the pipeline backflow fault is cleared, press the top of the indicator rod 553 penetrating the anti-backflow pipe 51 to mark the... When the identification rod 553 slides downward, the inclined surface of the locking groove 5532 presses against the inclined surface of the locking block 5223, causing the locking block 5223 to retract and disengage from the locking groove 5532. Under the action of the locking spring 523, the locking rod 522 retracts into the locking cavity 521, releasing the lock on the identification rod 553. After the identification rod 553 is reset, the pressure in the backflow cavity 552 is released, the one-way block 53 returns to the sliding state, and the device switches back to the one-way valve mode to ensure the forward flow of the medium.

[0046] The working principle of the water-storage direct cooling circulation system in this application is as follows: Under normal cooling conditions, valves A3511, D3521, B3311, C3321, E3421, and G3411 are closed, while valves F333, Z1211, and H2111 are closed. The proportional valve 361 on pipe D36 maintains its opening as required, the cooling pump 22 starts, and draws the high-temperature cooling medium from the chiller 12 through the seventh pipe 221, and delivers it to the cooling tower 11 for heat dissipation through the eighth pipe 222; the cooled medium flows back to the chiller 12 through the first pipe 111 to provide heat dissipation for the chiller 12's cooling operation; the chilled water pump 21 draws the heated return water from the collector 14 through the fifth pipe 141, and delivers it to the chiller 12 by opening the valve H2111 on the sixth pipe 211; after the chiller 12 cools the return water to low-temperature chilled water, it delivers it to the distributor 13 through the opening of the valve Z1211 on the second pipe 121 and the valve F333 on pipe A33, and then distributes it to each energy-saving air conditioner 15 for cooling through the third pipe 131; the heated return water that has completed heat exchange flows back to the collector 14 through the fourth pipe 151 to form a closed loop; the liquid level of the medium inside the housing 41 of the protection component 4 is maintained at a preset value. When the float 432 is in equilibrium, the first spring 4315 and the second spring 4317 are in their natural state. The second bladder 4341 is inflated, causing the second sealing ring 434 to expand. The other end of the inner tube 42 is tightly fitted with the outlet 412. The first sealing ring 442 fits against the outer wall of the inner tube 42, achieving a seal and reserving floating margin. In the anti-backflow structure 5, the positive pressure of the medium pushes the one-way block 53 to compress the closing spring 54, opening the valve pipe 52 channel. The indicator rod 553 keeps the valve open. The system remains in a low position, preventing the locking component from triggering. During off-peak electricity hours and in cold storage operation, valves F333, Z1211, A3511, and B3311 are open, while valves D3521, C3321, E3421, and G3411 are closed. Proportional valve 361 operates at a small opening. The chiller unit 12 prepares low-temperature chilled water at full load. The low-temperature chilled water is diverted through the second pipe 121 to pipe A33, and then through valve B on branch A 331. On branch line C, valve A3511 is opened to deliver cold storage medium to cold storage tank 32 for storage. Storage pump 31, in conjunction with protection component 4, regulates the flow rate to prevent fluctuations in the operating conditions of cold storage tank 32. A small amount of heated return water in water collector 14 flows back to pipeline A33 via pipeline D36 and proportional valve 361, mixing with low-temperature cold water to finely adjust the water temperature and meet the cold storage requirements of cold storage tank 32. Anti-backflow structure 5 maintains forward conduction, and protection component 4 maintains normal sealing to ensure stable delivery of the cold storage medium. During peak electricity consumption periods, valves D3521, C3321, E3421, G3411, and H2111 are opened, while valves A and B3311 are closed. Valves F333, Z1211, and proportional valve 361 adjust their opening as needed.The storage pump 31 starts, drawing low-temperature chilled water from the cold storage tank 32 and delivering it to pipeline A33 by opening valve D3521 on branch C 352 and valve C3321 on branch A; simultaneously, some low-temperature chilled water flows through pipeline B34, with check valve 3412 preventing backflow, and B... On the second branch, valve E3421 opens to directly supply water to the distributor 13 for cooling. Another portion is supplied to the chiller 12 inlet via valve G3411 on branch B 341 and valve H2111 on the sixth pipe 211, reducing the load on the chiller 12. Temperature regulating valve 37 adjusts the flow rate of the medium in pipes A33 and B34 in real time according to the water temperature in pipe A33, precisely controlling the cooling water temperature. Proportional valve 361 adjusts the return water ratio of the collector 14, further optimizing cooling stability. Protective components 4 and the anti-backflow structure 5 remain in standby mode, ensuring the safety of the cooling process. If the inner pipe 42 leaks, the liquid level inside the outer casing 41 rises, the float 432 rises and pushes the first piece 4314 to compress the first spring 4315, the second bladder 4341 contracts, causing the second sealing ring 434 to shrink. The other end of the inner pipe 42 connects to the outlet 41. 2. When released, the liquid level rises, and the buoyancy drives the inner tube 42 to float up and detach from the outlet 412, blocking the flow of the medium. If the outer shell 41 leaks, the liquid level drops, the float 432 slides down, presses the second block 4316, compresses the second spring 4317, the second sealing ring 434 shrinks, and the inner tube 42 sinks and detaches from the outlet 412, achieving flow interruption protection. Throughout the process, the first sealing ring 442 floats and deforms with the inner tube 42, maintaining a sealed and fixed position. If backflow occurs in pipeline A33, the reverse water flow enters the backflow chamber 552 through the backflow groove 551, pushing the indicator rod 553 upward. The locking rod 522 engages with the mating groove 5531 and locks the groove 5532. The closing spring 54 pushes the one-way block 53 to reset and press against the valve pipe 52 port, completely blocking the backflow. After troubleshooting, press the indicator rod 553, the locking rod 522 unlocks, the one-way block 53 resumes sliding, and the device switches back to one-way valve mode.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-storage direct cooling circulation system, characterized in that: The system includes a cooling unit (1), a circulation unit (2), and a cold storage unit (3). The circulation unit (2) is located on the cooling unit (1), and the cold storage unit (3) is located on both the cooling unit (1) and the circulation unit (2). The cooling unit (1) includes a cooling tower (11), a chiller (12), a water distributor (13), a water collector (14), and an energy-saving air conditioner (15). A first pipe (111) is provided between the cooling tower (11) and the chiller (12), and the cooling tower (11) is connected to the chiller through the first pipe (111). (12) Connected; A second pipe (121) is provided between the chiller (12) and the water distributor (13), and the chiller (12) is connected to the water distributor (13) through the second pipe (121); A third pipe (131) is provided between the water distributor (13) and the energy-saving air conditioner (15), and the water distributor (13) is connected to the energy-saving air conditioner (15) through the third pipe (131); A fourth pipe (151) is provided between the energy-saving air conditioner (15) and the water collector (14), and the energy-saving air conditioner (15) is connected to the water collector (14) through the fourth pipe (151).

2. The water-storage direct cooling circulation system according to claim 1, characterized in that: The circulation unit (2) includes a chilled pump (21) and a cooling pump (22); a fifth pipe (141) is provided between the water collector (14) and the chilled pump (21), and the water collector (14) is connected to the chilled pump (21) through the fifth pipe (141); a sixth pipe (211) is provided between the chilled pump (21) and the chiller (12), and the chilled pump (21) is connected to the chiller (12) through the sixth pipe (211); a seventh pipe (221) is provided between the cooling pump (22) and the chiller (12), and the cooling pump (22) is connected to the chiller (12) through the seventh pipe (221); an eighth pipe (222) is provided between the cooling pump (22) and the cooling tower (11), and the cooling pump (22) is connected to the cooling tower (11) through the eighth pipe (222).

3. The water-storage direct cooling circulation system according to claim 2, characterized in that: The cold storage unit (3) includes a storage pump (31) and a cold storage tank (32); a pipe A (33) is provided on the second pipe (121), one end of the pipe A (33) is connected to the chiller (12) through the second pipe (121), and the other end of the pipe A (33) is divided into a branch A (331) and a second branch A (332); a pipe B (34), a pipe C (35) and a protection component (4) are provided on the storage pump (31), one end of the pipe B (34) is connected to the storage pump (31) through the protection component (4), and the other end of the pipe B (34) is divided into a branch B (341) and a second branch B (342), and the branch B (341) is connected to the chiller (12) through the sixth pipe (211). The machine (12) is connected, and the second branch (342) of B is connected to the water distributor (13); one end of the pipeline C (35) is connected to the storage pump (31), and the other end of the pipeline C (35) is divided into a first branch (351) of C and a second branch (352), and the first branch (351) of C and the second branch (352) of C are respectively connected to the cold storage tank (32); the first branch (331) of A is connected to the cold storage tank (32) through the first branch (351), and the second branch (332) of A is connected to the cold storage tank (32) through the second branch (352); the water collector (14) is provided with a pipeline D (36), and the water collector (14) is connected to the pipeline A (33) through the pipeline D (36).

4. A water-storage direct cooling circulation system according to claim 3, characterized in that: A valve A (3511) is installed on branch C (351), and a valve D (3521) is installed on branch C (352); a valve B (3311) is installed on branch A (331), and a valve C (3321) is installed on branch A (332); a temperature regulating valve (37) is installed between pipeline A (33) and pipeline B (34), and pipeline A (33) is connected to pipeline B (34) through the temperature regulating valve (37); a valve F (333) is installed at one end of pipeline A (33); the valve F (333) is connected to the temperature regulating valve (37). A backflow prevention structure (5) is installed in the pipeline A (33); a valve G (3411) is installed on the branch line B (341); a check valve (3412) is installed at one end of the pipeline B (34); a valve E (3421) is installed on the second branch line B (342); a valve H (2111) is installed on the sixth pipe (211) between the chilled pump (21) and the branch line B (341); a valve Z (1211) is installed on the second pipe (121) between the water distributor (13) and the pipeline A (33); a proportional valve (361) is installed on the pipeline D (36).

5. A water-storage direct cooling circulation system according to claim 3, characterized in that: The protective component (4) includes a shell (41), an inner tube (42), a separation connection structure (43), and a sealing mechanism (44); one end of the shell (41) is provided with a water inlet (411), and the other end of the shell (41) is provided with a water outlet (412); the sealing mechanism (44) is provided at the water inlet (411); one end of the inner tube (42) is provided at the water inlet (411) through the sealing mechanism (44); the other end of the inner tube (42) is circular, and the other end of the inner tube (42) is provided with a separation connection structure (43); the inner end of the water outlet (412) is configured to fit with the other end of the inner tube (42).

6. A water-storage direct cooling circulation system according to claim 5, characterized in that: The sealing mechanism (44) includes an installation sleeve (441) and a first sealing ring (442); the installation sleeve (441) is fixedly installed at the water inlet (411), and a plurality of inlets (4411) are arranged circumferentially at one end of the installation sleeve (441). The first sealing ring (442) is fixedly installed inside the installation sleeve (441), and a first bladder (4421) is arranged inside the first sealing ring (442). A plurality of first interfaces (4422) are arranged circumferentially at one end of the first sealing ring (442), and the first interfaces (4422) are arranged on the inlets (4411).

7. A water-storage direct cooling circulation system according to claim 5, characterized in that: The separation connection structure (43) includes a drive cylinder (431), a float (432), a drive rod (433), and a second sealing ring (434); the second sealing ring (434) is disposed on the circular surface of the other end of the inner tube (42); the drive cylinder (431) is disposed at one end of the inner tube (42) near the outlet pipe, one end of the drive rod (433) is slidably disposed inside the drive cylinder (431), and the float (432) is fixedly disposed at the other end of the drive rod (433); a second bladder (4341) is disposed inside the second sealing ring (434), and multiple sets of second interfaces (4342) are disposed on the second sealing ring (434), and the second bladder (4341) is connected to the drive cylinder (431) through the second interfaces (4342).

8. A water-storage direct cooling circulation system according to claim 7, characterized in that: The drive cylinder (431) is internally divided into a first cavity (4311), a sliding cavity (4312), and a second cavity (4313) from top to bottom. One end of the drive rod (433) is disposed in the sliding cavity (4312). A first block (4314) is slidably disposed in the first cavity (4311), and one end of the first block (4314) is disposed in the sliding cavity (4312). A first spring (4315) is sleeved on the first block (4314), one end of the first spring (4315) is fixedly disposed at one end of the first block (4314), and the other end of the first spring (4315) is fixedly disposed on the inner wall of the sliding cavity (4312). The first cavity (4311) is connected to the second bladder (4341) through a set of second interfaces (4342); a second block (4316) is slidably disposed inside the second cavity (4313), one end of the second block (4316) is disposed inside the sliding cavity (4312); a second spring (4317) is sleeved on the second block (4316), one end of the second spring (4317) is fixedly disposed at one end of the second block (4316), and the other end of the second spring (4317) is fixedly disposed on the inner wall of the sliding cavity (4312); the second cavity (4313) is connected to the second bladder (4341) through another set of second interfaces (4342).

9. A water-storage direct cooling circulation system according to claim 4, characterized in that: The anti-backflow structure (5) includes an anti-backflow pipe (51), a valve pipe (52), a one-way block (53), and a closing spring (54); the one-way block (53) is slidably disposed inside the valve pipe (52), one end of the closing spring (54) is fixedly disposed inside the valve pipe (52), and the other end of the closing spring (54) is fixedly disposed at one end of the one-way block (53), and the other end of the one-way block (53) abuts against one end of the valve pipe (52); the valve pipe (52) is fixedly disposed inside the anti-backflow pipe (51), and the anti-backflow pipe (51) is disposed on pipeline A (33); one end of the valve pipe (52) is provided with a locking cavity (521), and the inner end of the locking cavity (521) is provided with a locking mechanism. The locking cavity (5211) is provided with a locking rod (522) and a locking spring (523). One end of the locking rod (522) is slidably disposed in the locking groove (5211). One end of the locking spring (523) is fixedly disposed inside the locking cavity (521), and the other end of the locking spring (523) is fixedly disposed at one end of the locking rod (522). The bottom of the other end of the locking rod (522) is provided with a snap-fit ​​groove (5221). A snap-fit ​​spring (5222) is disposed in the snap-fit ​​groove (5221), and a snap-fit ​​block (5223) is disposed on the snap-fit ​​spring (5222). The top of the other end of the locking rod (522) is a mating slope.

10. A water-storage direct cooling circulation system according to claim 9, characterized in that: The other end of the one-way block (53) is provided with an identification structure (55) including a backflow groove (551), a backflow cavity (552), and an identification rod (553); the backflow groove (551) is provided at the other end of the one-way block (53), the backflow cavity (552) is longitudinally arranged in the one-way block (53), and the backflow cavity (552) is connected to the backflow groove (551); one end of the identification rod (553) is slidably arranged in the backflow cavity (551). Inside 52), one side of the marker rod (553) abuts against the locking rod (522), and one side of the other end of the marker rod (553) is provided with a mating groove (5531). The top of the mating groove (5531) is an unlocking slope, and the bottom of the mating groove (5531) is provided with a locking groove (5532). The top of the marker rod (553) passes through the anti-tipping tube (51), and the marker rod (553) and the anti-tipping tube (51) are slidably connected.

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