Water collecting tank combination adapting to closed function

Abstract

The utility model discloses a water collecting tank combination adapting to a closed function, which comprises an integrated water tank and an external constant pressure compensation system, the integrated water tank comprises a liquid storage tank and a liquid separator, cooling liquid is filled in the liquid storage tank, the top of the liquid storage tank is provided with an opening, and the bottom of the liquid storage tank is provided with a liquid discharge interface; the liquid separator is installed in the liquid storage tank in a penetrating mode, the part, located in the liquid storage tank, of the liquid separator is submerged by cooling liquid and provided with a plurality of liquid outlet connectors, the liquid outlet connectors penetrate out of the liquid storage tank, the part, located in the liquid storage tank, of the liquid separator is further provided with liquid outlet connectors, and the part, located outside the liquid storage tank, of the liquid separator is provided with liquid inlet connectors. A first bypass liquid outlet end and a second bypass liquid outlet end are arranged on the side surface of the liquid inlet interface; the external constant pressure compensation system comprises a pressurizing part composed of a first valve, a constant pressure pump, a one-way valve and a second valve, and the liquid discharging connector is connected with the first bypass liquid inlet end of the liquid inlet connector through the first valve, the constant pressure pump, the one-way valve and the second valve in sequence. According to the utility model, the space design is reduced while the functional performance is ensured.

Description

Technical Field

[0001] This utility model relates to the field of liquid storage tanks for cold liquid equipment, specifically a water collection tank assembly adapted to a closed-loop function. Background Technology

[0002] Cooling equipment originated in the 1960s and 70s and is now widely used in power electronics, military and aerospace, power plants, medical lasers and diagnostic equipment, industrial lasers, cabinet cooling, analytical instruments, nuclear power generation, semiconductor equipment, telecommunications, machine tools, and supercomputers. With the development of high-power and high-heat-fluidity electronic equipment, especially for special applications such as vehicle-mounted, shipborne, or fixed-station cooling systems, efficient heat dissipation is crucial for high-power radar transmitters, lasers, electronic cabinets, and high-power modules, leading to continuous improvements in product functionality and performance. For example, there is a demand for achieving more functions in a smaller structural space with fewer parts or components, enabling integrated product design and leaving more space for continuous product upgrades.

[0003] In cooling systems, open or closed circulation systems are typically used to dissipate heat loads. An open circulation system uses an open storage tank, connected to the atmosphere via an exhaust valve or vent on top, maintaining a constant local atmospheric pressure. The pump's back pressure is based on atmospheric pressure to ensure the supply pressure and flow rate. A closed circulation system, on the other hand, does not directly connect to the atmosphere for pump back pressure. It requires an external storage tank and a constant pressure compensation system to determine the pump's back pressure. For example, with a load height of 50m and a back pressure set at 6.0 bar, if the back pressure exceeds 6.5 bar, the system will control it to decrease to 6.0 bar; if the back pressure falls below 5.5 bar, the system will control it to increase to 6.0 bar. Therefore, closed circulation systems are typically used in applications requiring rapid temperature response, high cleanliness, and significant height differences between the load and the equipment. For closed systems with large liquid supply flow rates, multiple pumps are usually used in parallel, and a combination is formed by installing a distributor, a collector and other valves at the pump inlet and outlet. However, an external liquid storage tank and a constant pressure compensation system need to be placed elsewhere, which takes up a lot of space and may not even meet the space design requirements. Utility Model Content

[0004] This invention provides a water collection tank assembly adapted to closed-loop functions, thereby solving the problem of large space occupation in existing closed-loop systems of chilled liquid equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A closed-loop water tank assembly includes an integrated water tank and an external constant pressure compensation system. The integrated water tank includes a storage tank (1.2) and a distributor (1.1). The storage tank (1.2) is an open-type water tank, storing coolant (3). The storage tank (1.2) has an opening (J) at the top and a drain port (E) at the bottom. The distributor (1.1) is horizontally installed through the storage tank (1.2), and is integrated with the storage tank (1.2) at the point of penetration. The portion of the distributor (1.1) inside the storage tank (1.2) is filled with coolant (3). The liquid separator (1.1) located inside the storage tank (1.2) is provided with several horizontal outlet ports (B), each outlet port (B) extending out of the storage tank (1.2) and connected to the storage tank (1.2) at the outlet. The liquid separator (1.1) located inside the storage tank (1.2) is also provided with an outlet port (D), through which the liquid separator (1.1) communicates with the interior of the storage tank (1.2). The liquid separator (1.1) located outside the storage tank (1.2) is provided with an inlet port (A), and the side of the inlet port (A) is provided with a first bypass inlet end (F) and a second bypass outlet end (G).

[0007] The external constant pressure compensation system includes a pressure boosting section, which includes a first valve (7), a constant pressure pump (8), a one-way valve (9), and a second valve (11). The drain port (E) at the bottom of the storage tank (1.2) is connected to the inlet end of the constant pressure pump (8) through the first valve (7). The outlet end of the constant pressure pump (8) is connected to the first bypass inlet end (F) on the side of the inlet port (A) in sequence through the one-way valve (9) and the second valve (11).

[0008] Furthermore, the external constant pressure compensation system also includes a pressure relief part, which includes a pressure relief valve (12). The inlet end of the pressure relief valve (12) is connected to the second bypass outlet end (G) on the side of the liquid inlet interface (A), and the outlet end of the pressure relief valve (12) is connected to the liquid storage tank (1.2).

[0009] Furthermore, the external constant pressure compensation system is positioned slightly below the liquid storage tank (1.2).

[0010] Furthermore, the portion of the liquid dispenser (1.1) located outside the storage tank (1.2) has a drain port, which is connected to one end of the first hand valve (5). The drain port (E) is connected to one end of the second hand valve (6) through another pipeline. The other ends of the first hand valve (5) and the second hand valve (6) are connected to the same drain pipe.

[0011] Furthermore, it also includes a heating interface (C), which is located on the part of the distributor (1.1) outside the storage tank (1.2), or the heating interface (C) is located on the storage tank (1.2).

[0012] Furthermore, the liquid storage tank (1.2) is also equipped with a liquid level indicator (13).

[0013] This invention effectively integrates an external liquid storage tank, a distributor, and an external constant pressure compensation system, reducing space requirements while ensuring functional performance. Furthermore, this invention can be converted into an open-loop system as needed when the load height changes, without requiring major modifications. Therefore, compared with existing technologies, this invention has the following advantages:

[0014] 1. This utility model makes full use of the space of the original liquid dispenser, perfectly combining the liquid storage tank and the liquid dispenser, without occupying other space, thus achieving efficient use of space.

[0015] 2. This utility model utilizes the real-time heat exchange between the liquid storage tank and the liquid distributor to achieve partial energy storage and stabilize temperature fluctuations during liquid replenishment.

[0016] 3. This utility model places the external constant pressure compensation system outside the integrated water tank, minimizing the need for external piping systems, facilitating centralized layout, and ensuring that daily maintenance and repair are not affected.

[0017] 4. This utility model has a simple, reliable, and compact structure with a high degree of integration. Attached Figure Description

[0018] Figure 1 This is a front view of the structure of an embodiment of this utility model.

[0019] Figure 2 This is a side view of the structure of an embodiment of the present utility model.

[0020] Figure 3 This is a front view of the structure of this utility model embodiment with the heating interface added. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] This embodiment discloses a water collection tank assembly adapted to a closed-loop function, such as... Figure 1 , Figure 2 As shown, it includes an integrated water tank 1 and an external constant pressure compensation system. Figure 1 , 2 middle For the flow direction of the constant pressure system, This represents the main flow direction of the coolant. Among them:

[0023] The integrated water tank 1 includes a liquid storage tank 1.2 and a distributor 1.1. The liquid storage tank 1.2 is an open-type water tank, which stores coolant 3. The liquid storage tank 1.2 has a rectangular structure. The top of the liquid storage tank 1.2 has an opening J, to which an exhaust valve or an exhaust cover 4 is connected. The bottom of the liquid storage tank 1.2 has a drain port E, and the bottom of the liquid storage tank 1.2 is fixed with multiple feet 1.3. The side of the liquid storage tank 1.2 has a liquid level indicator 13 to indicate the liquid level inside the liquid storage tank 1.2.

[0024] The distributor 1.1 is horizontally installed through the liquid storage tank 1.2, with its left and right ends protruding from the corresponding sides of the tank 1.2. At these points, the distributor 1.1 is integrated with the liquid storage tank 1.2. The portion of the distributor 1.1 within the liquid storage tank 1.2 is submerged in the coolant 3. This portion of the distributor 1.1 within the tank 1.2 has several horizontally arranged outlet ports B, each extending forward to protrude from the front of the tank 1.2 and integrated with the tank 1.2 at its exit point. The top surface of the portion of the distributor 1.1 within the tank 1.2 has an outlet port D, which connects the distributor 1.1 and the liquid storage tank 1.2. The separator 1.1 is provided with an inlet port A at the right end outside the storage tank 1.2. The lower side of the inlet port A is provided with a first bypass inlet port F, and the upper side of the inlet port A is provided with a second bypass outlet port G.

[0025] The external pressure compensation system includes a pressurization section and a pressure relief section. The pressurization section includes a first valve 7, a pressure-regulating pump 8, a check valve 9, and a second valve 11. One end of the first valve 7 is connected to the drain port E at the bottom of the storage tank 1.2, and the other end is connected to the inlet of the pressure-regulating pump 8. The outlet of the pressure-regulating pump 8 is connected to the inlet of the check valve 9, and the outlet of the check valve 9 is connected to one end of the second valve 11. The other end of the second valve 11 is connected to the first bypass inlet F on the lower side of the inlet port A. The pressure relief section includes a pressure relief valve 12. The inlet of the pressure relief valve 12 is connected to the second bypass outlet G on the upper side of the inlet port A, and the outlet of the pressure relief valve 12 is connected to a position inside the storage tank 1.2 higher than the outlet D.

[0026] The separator 1.1 is located at the bottom left of the storage tank 1.2 and has a drain port. The drain port is connected to one end of the first hand valve 5. The drain port E at the bottom of the storage tank 1.2 is connected to one end of the second hand valve 6 through another pipeline. The other ends of the first hand valve 5 and the second hand valve 6 are connected to the same drain pipe.

[0027] As an improvement to this embodiment, the components of the pressurization section in the external constant pressure compensation system are arranged slightly below the liquid storage tank 1.2, and the components of the depressurization section in the external constant pressure compensation system are arranged on the side of the liquid storage tank 1.2.

[0028] As an improvement to this embodiment, recesses are provided on the bottom and right side of the liquid storage tank 1.2. The components of the pressurization part of the external constant pressure compensation system are arranged in the recesses on the lower part of the bottom and right side of the liquid storage tank 1.2, and the components of the depressurization part of the external constant pressure compensation system are arranged in the recesses on the upper part of the right side of the liquid storage tank 1.2.

[0029] As an improvement to this embodiment, a heating interface C is added. The heating interface C is located on the part of the distributor 1.1 outside the storage tank 1.2, or on the storage tank 1.2. Figure 3 As shown, the heating interface C is located on the left end face of the distributor 1.1 outside the storage tank 1.2.

[0030] In this embodiment, several horizontal liquid outlet ports B are connected to the corresponding external water pump inlets. Their number and pipe diameter are comparable to the water pump selected in the specific design, usually 1 to 4. The liquid inlet port A is the return port after the coolant is transported to the required location by the water pump. The section from the liquid inlet port A to the liquid outlet port B is the suction section of the water pump, and the internal pressure is the back pressure P1.

[0031] When used or used only in a closed liquid cooling system, the internal liquid outlet port D on the distributor 1.1 is in a sealed or unsealed state. The internal back pressure P1 is usually between 1 and 8 bar. When the internal back pressure P1 is lower than the lower back pressure limit, the pressurization section is opened until the requirement is met and then it stops. When the internal back pressure P1 is higher than the upper back pressure limit, the depressurization section is opened until the requirement is met and then it stops.

[0032] When the function is combined with or expanded to be open, the internal liquid outlet D on the distributor 1.1 is in the open state, the internal back pressure P1 and the pressure P2 in the storage tank are the same, which is atmospheric pressure, forming an open water tank. At this time, the constant pressure compensation system no longer works.

[0033] The integrated water tank 1 also has two drain ports, namely the second hand valve 6 connected to the drain port E at the bottom of the storage tank 1.2 via the first valve 7, and the first hand valve 5 connected to the bottom left end of the distributor 1.1. The first hand valve 5 and the second hand valve 6 share a drain pipe for draining when not in operation.

[0034] Heating interface C can be equipped with an electric heater 2 or other heat source tubes of the required power for starting and regulating coolant temperature under low-temperature conditions.

[0035] The materials used for the integrated water tank 1 and other materials in contact with the coolant are selected appropriately according to the application environment, such as stainless steel 304, 316L, titanium or other polymer materials. The interior of the integrated water tank 1 may be coated with a special process to enhance its corrosion resistance.

[0036] The interfaces used in the integrated water tank 1 and the external constant pressure compensation system are designed according to specific circumstances, such as using gasket + flange, O-ring + flange, sealing thread, etc. for connection.

[0037] Coolant 3 can be water, ethylene glycol aqueous solution, propylene glycol aqueous solution, glycerol aqueous solution, No. 60 coolant, No. 65 coolant, etc., as long as the product selection is met.

[0038] In the specific design, the liquid inlet A and the heating interface C can also be placed on the same side of the distributor 1.1, saving installation space on one side of the integrated water tank. Keeping the interfaces on the same side may make maintenance more convenient.

[0039] This embodiment is further explained as follows:

[0040] Taking a closed-loop refrigerant system as an example, the liquid supply flow rate of this closed-loop refrigerant system is 110 m³ / s. 3 The 500kW refrigerant system, with a capacity of [number] m³ / h, employs two operating and one standby water pumps, with each pump having a simultaneous operating flow rate of 55 m³ / h. 3 The system has a flow rate of / h, a pipe diameter of DN100, and a back pressure P1 of 2 bar. The distributor uses a 1-to-3 design, with port A being DN150 and three ports B being DN100. The shell and tube diameter is DN250, and the length is 1020mm, resulting in a shell and tube capacity of approximately 50L. The original design capacity of the storage tank was approximately 500L. Subtracting the space occupied by the distributor, the internal dimensions of the storage tank are designed to be 1000×350×1600mm, with a capacity of 560L, which meets the original design requirements. Therefore, the distributor occupies approximately 10% of the storage tank capacity, having a limited impact on the original capacity. The integrated water tank occupies the original distributor location, with roughly the same length and width. Moving the storage tank to this location utilizes the height space, effectively utilizing space without requiring additional space. This is highly practical for space-constrained closed-loop refrigerant systems. When the load requirement shifts to an open system, only port D needs to be opened to stop the constant pressure compensation system.

[0041] When needed, the pressure relief valve 12 can be replaced by an electric valve, which can realize electrical control.

[0042] The inlet end F and the outlet end G can be located at the inlet port A, or possibly at the other end of the distributor 1.1.

[0043] In the specific design of the constant pressure compensation system, it can be placed on one side of the integrated water tank 1 or the liquid storage tank 1.2 can be partially recessed and placed in the recessed area to form a complete combination.

[0044] The liquid level indicator 13 is used to monitor the amount of coolant 3 stored in the liquid storage tank 1.2. It can also be replaced by a liquid level sensor for real-time data acquisition. When the coolant 3 is insufficient, the liquid storage tank 1.2 is replenished by a replenishing pump or manually. Since this is not the content to be protected by this patent, it will not be described in detail here.

[0045] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0046] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. A water collection tank assembly adapted to a closed-loop function, characterized in that, The system includes an integrated water tank and an external constant pressure compensation system. The integrated water tank includes a storage tank (1.2) and a distributor (1.1). The storage tank (1.2) is an open-type water tank, storing coolant (3). The top of the storage tank (1.2) has an opening (J), and the bottom of the storage tank (1.2) has a drain port (E). The distributor (1.1) is horizontally installed through the storage tank (1.2), and at the point of penetration, the distributor (1.1) is integrated with the storage tank (1.2). The portion of the distributor (1.1) located inside the storage tank (1.2) is submerged by the coolant (3) inside the storage tank (1.2). (1.1) The portion located inside the storage tank (1.2) is provided with several horizontal outlet ports (B), each outlet port (B) extending out of the storage tank (1.2) and each outlet port is connected to the storage tank (1.2) at the point of exit. The portion of the distributor (1.1) located inside the storage tank (1.2) is also provided with an outlet port (D), and the distributor (1.1) communicates with the interior of the storage tank (1.2) through the outlet port (D). The portion of the distributor (1.1) located outside the storage tank (1.2) is provided with an inlet port (A), and the side of the inlet port (A) is provided with a first bypass inlet end (F) and a second bypass outlet end (G). The external constant pressure compensation system includes a pressure boosting section, which includes a first valve (7), a constant pressure pump (8), a one-way valve (9), and a second valve (11). The drain port (E) at the bottom of the storage tank (1.2) is connected to the inlet end of the constant pressure pump (8) through the first valve (7). The outlet end of the constant pressure pump (8) is connected to the first bypass inlet end (F) on the side of the inlet port (A) in sequence through the one-way valve (9) and the second valve (11).

2. The water collection tank assembly with a closed-loop function according to claim 1, characterized in that, The external constant pressure compensation system also includes a pressure relief part, which includes a pressure relief valve (12). The inlet end of the pressure relief valve (12) is connected to the second bypass outlet end (G) on the side of the liquid inlet interface (A), and the outlet end of the pressure relief valve (12) is connected to the liquid storage tank (1.2).

3. A water collection tank assembly adapted to a closed-loop function according to claim 1 or 2, characterized in that, The external constant pressure compensation system is positioned slightly below the liquid storage tank (1.2).

4. The water collection tank assembly with a closed-loop function according to claim 1, characterized in that, The portion of the liquid dispenser (1.1) located outside the storage tank (1.2) has a drain port, which is connected to one end of the first hand valve (5). The drain port (E) is connected to one end of the second hand valve (6) through another pipeline. The other ends of the first hand valve (5) and the second hand valve (6) are connected to the same drain pipe.

5. The water collection tank assembly with a closed-loop function according to claim 1, characterized in that, It also includes a heating interface (C), which is located on the part of the distributor (1.1) outside the storage tank (1.2), or the heating interface (C) is located on the storage tank (1.2).

6. The water collection tank assembly with a closed-loop function according to claim 1, characterized in that, The liquid storage tank (1.2) is also equipped with a liquid level indicator (13).

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