Water collecting tank combination adapting to closed function

Abstract

The invention discloses a water collection tank combination adaptive 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, the liquid storage tank is filled with cooling liquid, 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 invention, the space design is reduced while the functional performance is ensured.

Description

Technical Field

[0001] The invention relates to the field of liquid storage tanks for cold liquid equipment, in particular to a water collecting tank combination adapted to closed functions. Background Art

[0002] Liquid cooling equipment originated in the 1960s and 1970s, and is currently widely used in power electronics, military and aviation, power stations, 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 flux electronic equipment, especially special-purpose liquid cooling equipment such as vehicle-mounted, ship-mounted or fixed stations, the high-power radar transmitter, laser, electronic cabinet and high-power module are solved to achieve efficient heat dissipation, so that product functions and performance are continuously improved. For example, it is required to use a smaller structural space, fewer parts or components to complete more functions, realize product integrated design, and leave more space to meet the continuous upgrading of products.

[0003] In cooling liquid equipment, open or closed circulation systems are usually used to dissipate heat from heat loads. The so-called open circulation system uses an open liquid storage tank, which is connected to the atmosphere through an exhaust valve or exhaust port placed on the top, and always maintains a local atmospheric pressure. The back pressure of the water pump is based on atmospheric pressure to ensure the supply pressure and flow rate; the so-called closed circulation system means that the establishment of the back pressure of the water pump is not directly connected to the atmosphere, and the back pressure of the water pump needs to be determined by an external liquid storage tank and a set of constant pressure compensation system. For example, when the load height reaches 50m, the back pressure is set to 6.0bar. When the back pressure is higher than 6.5bar, the system controls the back pressure to 6.0bar; when the back pressure is lower than 5.5bar, the system controls the back pressure to 6.0bar. Therefore, the closed circulation system is usually used in occasions with fast temperature response, high cleanliness, and relatively large height difference 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 liquid distributor, a liquid collector and other valve components at the inlet and outlet of the water pump. An external liquid storage tank and a constant pressure compensation system need to be placed elsewhere, occupying a large space and even failing to meet space design requirements. Summary of the invention

[0004] The invention provides a water collecting tank combination adapting to a closed function, so as to solve the problem of large occupied space existing in the closed system of cold liquid equipment in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A water collecting tank assembly adapted to closed functions, comprising an integrated water tank and an external constant pressure compensation system, the integrated water tank comprising a liquid storage tank (1.2) and a liquid distributor (1.1), the liquid storage tank (1.2) being an open water tank, wherein a coolant (3) is stored in the liquid storage tank (1.2), the top of the liquid storage tank (1.2) having an opening (J), and the bottom of the liquid storage tank (1.2) having a liquid discharge interface (E); the liquid distributor (1.1) is installed horizontally through the liquid storage tank (1.2), and is integrally connected to the liquid storage tank (1.2) at the point where the liquid distributor (1.1) passes through, and the portion of the liquid distributor (1.1) located in the liquid storage tank (1.2) is cooled by the coolant (3) in the liquid storage tank (1.2). ) is submerged, a portion of the liquid distributor (1.1) located inside the liquid storage tank (1.2) is provided with a plurality of horizontal liquid outlet interfaces (B), each of the liquid outlet interfaces (B) respectively passes through the liquid storage tank (1.2), and each of the liquid outlet interfaces is connected to the liquid storage tank (1.2) at the passing portion, a portion of the liquid distributor (1.1) located inside the liquid storage tank (1.2) is also provided with a liquid outlet interface (D), and the liquid distributor (1.1) is connected to the interior of the liquid storage tank (1.2) through the liquid outlet interface (D); a portion of the liquid distributor (1.1) located outside the liquid storage tank (1.2) is provided with a liquid inlet interface (A), and a first bypass liquid inlet end (F) and a second bypass liquid outlet end (G) are provided on the side of the liquid inlet interface (A); The external constant pressure compensation system comprises a pressure boosting part, which comprises a first valve (7), a constant pressure pump (8), a one-way valve (9), and a second valve (11); a liquid discharge interface (E) at the bottom of the liquid storage tank (1.2) is connected to the inlet end of the constant pressure pump (8) through the first valve (7); and the outlet end of the constant pressure pump (8) is connected to the first bypass liquid inlet end (F) on the side of the liquid inlet interface (A) through the one-way valve (9) and the second valve (11) in sequence.

[0006] Furthermore, the external constant pressure compensation system also includes a pressure relief part, which includes a pressure relief valve (12), an inlet end of the pressure relief valve (12) and a second bypass liquid outlet end (G) on the side of the liquid inlet interface (A), and an outlet end of the pressure relief valve (12) is connected to the liquid storage tank (1.2).

[0007] Furthermore, the external constant pressure compensation system is adjusted slightly below the liquid storage tank (1.2).

[0008] Furthermore, the portion of the liquid distributor (1.1) located outside the liquid storage tank (1.2) has a liquid discharge port, which is connected to one end of the first hand valve (5), and the liquid discharge interface (E) is connected to one end of the second hand valve (6) through another pipeline, and the other ends of the first hand valve (5) and the second hand valve (6) are connected to the same liquid discharge pipe.

[0009] Furthermore, it also comprises a heating interface (C), wherein the heating interface (C) is arranged on a portion of the liquid dispenser (1.1) located outside the liquid storage tank (1.2), or the heating interface (C) is arranged on the liquid storage tank (1.2).

[0010] Furthermore, the liquid storage tank (1.2) is also equipped with a liquid level indicator (13).

[0011] The present invention effectively integrates the external liquid storage tank, the liquid distributor and the external constant pressure compensation system, reducing the space design while ensuring the functional performance. In addition, when the load height changes, the present invention can also be transformed into an open circulation system as needed without major changes. Therefore, compared with the prior art, the present invention has the following advantages: 1. The present invention makes full use of the spatial position of the original liquid dispenser, perfectly combines the liquid storage tank and the liquid dispenser, does not need to occupy other space, and realizes efficient use of space.

[0012] 2. The present invention 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.

[0013] 3. The present invention places the external constant pressure compensation system outside the integrated water tank, which minimizes the external pipe system and facilitates centralized layout, and does not affect daily repair and maintenance.

[0014] 4. The structure of the present invention is simple, reliable, compact and highly integrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the structure of an embodiment of the present invention.

[0016] Figure 2 It is a side view of the structure of an embodiment of the present invention.

[0017] Figure 3 It is a front view of the structure when a heating interface is added to the structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] This embodiment discloses a water collecting tank assembly adapted to the closed 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 is the flow direction of the constant pressure system, is the main flow direction of the coolant. The integrated water tank 1 comprises a liquid storage tank 1.2 and a liquid distributor 1.1. The liquid storage tank 1.2 is an open water tank, and coolant 3 is stored in the liquid storage tank 1.2. The liquid storage tank 1.2 is a rectangular structure as a whole, and an opening J is provided at the top of the liquid storage tank 1.2, and an exhaust valve or an exhaust cover 4 is connected to the opening J. A liquid discharge interface E is provided at the bottom of the liquid storage tank 1.2, and a plurality of feet 1.3 are fixed at the bottom of the liquid storage tank 1.2. A liquid level indicator 13 is provided on the side of the liquid storage tank 1.2 to indicate the liquid level inside the liquid storage tank 1.2.

[0020] The liquid separator 1.1 is installed horizontally through the liquid storage tank 1.2, wherein the left and right ends of the liquid separator 1.1 pass through the corresponding sides of the liquid storage tank 1.2 respectively, and the liquid separator 1.1 is connected to the liquid storage tank 1.2 at the point where it passes through. The part of the liquid separator 1.1 located in the liquid storage tank 1.2 is submerged by the coolant 3 in the liquid storage tank 1.2, and the part of the liquid separator 1.1 located in the liquid storage tank 1.2 is provided with a plurality of liquid outlet interfaces B in the front and rear horizontal positions, each of which extends forward to pass through the front side of the liquid storage tank 1.2, and each of the liquid outlet interfaces B is connected to the liquid storage tank 1.2 at the point where it passes through. A liquid outlet interface D is provided on the top surface of the part of the liquid separator 1.1 located in the liquid storage tank 1.2, and the liquid separator 1.1 and the liquid storage tank 1.2 are connected through the liquid outlet interface D. A liquid inlet interface A is provided at the right end of the liquid distributor 1.1 outside the liquid storage tank 1.2, a first bypass liquid inlet end F is provided at the lower side of the liquid inlet interface A, and a second bypass liquid outlet end G is provided at the upper side of the liquid inlet interface A.

[0021] The external constant pressure compensation system includes a pressurizing part and a pressure relief part. The pressurizing part includes a first valve 7, a constant pressure pump 8, a one-way valve 9, and a second valve 11. One end of the first valve 7 is connected to the discharge interface E at the bottom of the liquid storage tank 1.2, and the other end of the first valve 7 is connected to the inlet end of the constant pressure pump 8. The outlet end of the constant pressure pump 8 is connected to the inlet end of the one-way valve 9, and the outlet end of the one-way 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 liquid inlet end F on the lower side of the liquid inlet interface A. The pressure relief part includes a pressure relief valve 12. The inlet end of the pressure relief valve 12 is connected to the second bypass liquid outlet end G on the upper side of the liquid inlet interface A, and the outlet end of the pressure relief valve 12 is connected to the position higher than the liquid outlet interface D in the liquid storage tank 1.2.

[0022] The liquid distributor 1.1 is provided with a drain port at the bottom of the left end outside the liquid storage tank 1.2, and the drain port is connected to one end of the first hand valve 5. The drain interface E at the bottom of the liquid storage tank 1.2 is connected to one end of the second hand valve 6 through another pipeline, and the other ends of the first hand valve 5 and the second hand valve 6 are connected to the same drain pipe.

[0023] As an improvement to this embodiment, the components of the pressurization part of the external constant pressure compensation system are arranged below the liquid storage tank 1.2, and the components of the pressure relief part of the external constant pressure compensation system are arranged on the side of the liquid storage tank 1.2.

[0024] As an improvement to the present embodiment, recesses are provided at the bottom and right side of the liquid storage tank 1.2, respectively. Components of the pressurization part of the external constant pressure compensation system are arranged in the recesses at the bottom and lower part of the right side of the liquid storage tank 1.2, and components of the pressure relief part of the external constant pressure compensation system are arranged in the recesses at the upper part of the right side of the liquid storage tank 1.2.

[0025] As an improvement to this embodiment, this embodiment further includes a heating interface C, which is provided at the portion of the liquid dispenser 1.1 outside the liquid storage tank 1.2, or is provided on the liquid storage tank 1.2. Figure 3 As shown, the heating interface C is arranged on the left end surface of the liquid distributor 1.1 outside the liquid storage tank 1.2.

[0026] In this embodiment, several horizontal liquid outlet interfaces B are connected to corresponding external water pump inlets, and their number and pipe diameter are equivalent to the specific designed and selected water pump, usually 1 to 4; the liquid inlet interface A is the return interface after the coolant is transported to the required place by the water pump; from the liquid inlet interface A to the liquid outlet interface B is in the suction section of the water pump, and the internal pressure is the back pressure P1.

[0027] When used or only used for a closed liquid cooling system, the internal liquid outlet interface D on the liquid distributor 1.1 is in a sealed or cancelled state, and the internal back pressure P1 is usually between 1 and 8 bar. When the internal back pressure P1 is lower than the lower limit of the back pressure, the pressurization part opens until it reaches the requirement and then stops. When the internal back pressure P1 is higher than the upper limit of the back pressure, the pressure relief part opens until it reaches the requirement and then stops.

[0028] When the open function is taken into account or expanded, the internal liquid outlet interface D on the liquid distributor 1.1 is in an open state, the internal back pressure P1 is the same as the pressure P2 in the liquid storage tank, that is, the atmospheric pressure, forming an open water tank, and the constant pressure compensation system no longer works.

[0029] The integrated water tank 1 also has two drainage ports, namely, a second hand valve 6 connected to the drainage interface E at the bottom of the liquid storage tank 1.2 through the first valve 7, and a first hand valve 5 connected to the bottom of the left end of the liquid distributor 1.1. The first hand valve 5 and the second hand valve 6 share a drainage pipe for drainage in a non-working state.

[0030] The heating interface C can be equipped with an electric heater 2 or other heat source tube of required power, etc., for starting and adjusting the coolant temperature under low temperature conditions.

[0031] The integrated water tank 1 and other materials in contact with the coolant are reasonably selected according to the place of use, such as stainless steel 304, 316L, titanium or other polymer materials. The inside of the integrated water tank 1 may be coated with a special process to enhance its anti-corrosion performance.

[0032] The interface used in the integrated water tank 1 and the external constant pressure compensation system is designed according to specific conditions, such as connection by means of sealing gasket + flange, O-ring + flange, sealing thread, etc.

[0033] Coolant 3 is 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.

[0034] In the specific design, the liquid inlet interface A and the heating interface C can also be placed on the same side of the liquid distributor 1.1 to save the installation space on one side of the integrated water tank. It may be more convenient to keep the interfaces on the same side for maintenance.

[0035] This embodiment is further described as follows: Take a closed liquid cooling device as an example. The liquid flow rate of the closed liquid cooling device is 110m 3 / h 500kW cold liquid equipment, using 2 in service and 1 in reserve water pumps, each pump has a working flow of 55m 3 / h, the pipe diameter is DN100, and the back pressure P1 is 2bar. The liquid distributor adopts a 1-to-3 design, with interface A being DN150, 3 interfaces B being DN100, the shell and tube diameter being DN250, and the length being 1020mm. The shell and tube content is about 50L; if the original design capacity of the liquid storage tank is about 500L. The liquid storage tank minus the space occupied by the liquid distributor, the internal dimensions of the liquid storage tank are designed to be 1000×350×1600, with a capacity of 560L, which can meet the original design requirements. It can be seen from this that the liquid distributor occupies about 10% of the capacity of the liquid storage tank, and has limited impact on the increase in the original capacity of the liquid storage tank; the integrated water tank occupies the original position of the liquid distributor, and the length and width are basically the same. The liquid storage tank is moved here using the height space, which effectively utilizes the space and does not need to occupy other space. This has a strong practical value for closed cold liquid equipment with limited space. When the load requirement is converted to an open system, it is only necessary to open interface D and stop the constant pressure compensation system.

[0036] When necessary, the pressure relief valve 12 can be replaced by an electric valve to achieve electrical control.

[0037] The liquid inlet end F and the liquid outlet end G may be arranged at the end of the liquid inlet interface A, and it is not excluded that they may be arranged at the other end of the liquid distributor 1.1.

[0038] When the constant pressure compensation system is specifically designed, it can be placed on one side of the integrated water tank 1 or the liquid storage tank 1.2 can be partially concave and placed in the concave position to form a complete combination.

[0039] The liquid level indicator 13 is used to monitor the storage amount of the coolant 3 in the liquid storage tank 1.2, and can also be replaced by a liquid level sensor for real-time data collection; 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 protection content to be expressed by this patent, it will not be further elaborated.

[0040] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and such combinations should also be regarded as the contents disclosed in the present disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0041] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by technical personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A water collecting tank assembly adapted to closed functions, characterized in that: The invention comprises an integrated water tank and an external constant pressure compensation system. The integrated water tank comprises a liquid storage tank (1.2) and a liquid distributor (1.1). The liquid storage tank (1.2) is an open water tank. Coolant (3) is stored in the liquid storage tank (1.2). The top of the liquid storage tank (1.2) has an opening (J). The bottom of the liquid storage tank (1.2) has a liquid discharge interface (E). The liquid distributor (1.1) is installed horizontally through the liquid storage tank (1.2). The liquid distributor (1.1) is connected to the liquid storage tank (1.2) at the penetration point. The part of the liquid distributor (1.1) located in the liquid storage tank (1.2) is submerged by the coolant (3) in the liquid storage tank (1.2). The portion of the liquid distributor (1.1) located inside the liquid storage tank (1.2) is provided with a plurality of horizontal liquid outlet interfaces (B), each of which passes through the liquid storage tank (1.2) and is connected to the liquid storage tank (1.2) at the outlet. The portion of the liquid distributor (1.1) located inside the liquid storage tank (1.2) is also provided with a liquid outlet interface (D), and the liquid distributor (1.1) is connected to the inside of the liquid storage tank (1.2) through the liquid outlet interface (D); the portion of the liquid distributor (1.1) located outside the liquid storage tank (1.2) is provided with a liquid inlet interface (A), and a first bypass liquid inlet end (F) and a second bypass liquid outlet end (G) are provided on the side of the liquid inlet interface (A); The external constant pressure compensation system comprises a pressure boosting part, which comprises a first valve (7), a constant pressure pump (8), a one-way valve (9), and a second valve (11); a liquid discharge interface (E) at the bottom of the liquid storage tank (1.2) is connected to the inlet end of the constant pressure pump (8) through the first valve (7); and the outlet end of the constant pressure pump (8) is connected to the first bypass liquid inlet end (F) on the side of the liquid inlet interface (A) through the one-way valve (9) and the second valve (11) in sequence.

2. A water collecting tank assembly adapted to closed function according to claim 1, characterized in that: The external constant pressure compensation system further comprises a pressure relief part, the pressure relief part comprising a pressure relief valve (12), an inlet end of the pressure relief valve (12) being connected to a second bypass liquid outlet end (G) on the side of the liquid inlet interface (A), and an outlet end of the pressure relief valve (12) being connected to the liquid storage tank (1.2).

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

4. A water collecting tank assembly adapted to closed function according to claim 1, characterized in that: The portion of the liquid distributor (1.1) located outside the liquid storage tank (1.2) has a liquid discharge port, which is connected to one end of the first hand valve (5); the liquid discharge interface (E) is connected to one end of the second hand valve (6) via another pipeline; the other ends of the first hand valve (5) and the second hand valve (6) are connected to the same liquid discharge pipe.

5. A water collecting tank assembly adapted to closed function according to claim 1, characterized in that: It also comprises a heating interface (C), wherein the heating interface (C) is arranged at a portion of the liquid dispenser (1.1) located outside the liquid storage tank (1.2), or the heating interface (C) is arranged on the liquid storage tank (1.2).

6. A water collecting tank assembly adapted to closed 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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