CN219372908U

CN219372908U - Liquid supply structure of parallel redundant pump

Info

Publication number: CN219372908U
Application number: CN202222559157.0U
Authority: CN
Inventors: 张振民
Original assignee: Shenzhen Liquid Cooling Technology Co ltd
Current assignee: Shenzhen Liquid Cooling Technology Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-07-18
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a liquid supply structure of a parallel redundant pump, which comprises a liquid supply control assembly and an adapter box, wherein the adapter box is provided with more than two mounting ports and more than one liquid outlet; the liquid supply control assembly is provided with more than two groups, each group of liquid supply control assembly comprises a liquid supply pump, a liquid supply pipe and a one-way valve, the one-way valve is provided with a pipe joint end and a box joint end, the box joint ends of the one-way valves are respectively arranged at corresponding mounting ports, and the pipe joint ends are exposed outside the transfer box and are connected with output ends of the corresponding liquid supply pumps. So, parallelly connected setting supplies liquid control assembly combines the setting of check valve, and the work of arbitrary group supplies liquid control assembly opens and stops each other and do not influence, ensures that the liquid control is reliable, utilizes the transfer box to set up check valve, liquid outlet integration, makes things convenient for the setting of check valve, also is convenient for set up the liquid outlet of corresponding quantity and supplies for multichannel heat transfer unit to use, and compact structure is good, is suitable for to use on the CDU product.

Description

Liquid supply structure of parallel redundant pump

Technical Field

The utility model relates to the technical field of liquid cooling heat dissipation systems, in particular to a liquid supply structure of a parallel redundant pump, which can be used for a cold liquid distribution device.

Background

When the electronic product is used for a long time, the electronic product is easy to generate heat, especially the electronic product with more accessories such as a server, a television, a mobile phone, a computer and the like and certain requirements on the running speed, and the heat dissipation link is not good, so that the use of the product is greatly affected. In the early stage, the heat dissipation system has air cooling heat dissipation, but the air cooling heat dissipation can not meet the heat dissipation requirement of a plurality of electronic products at present, so that liquid cooling heat dissipation with better heat dissipation effect is also called 'water cooling heat dissipation', the liquid cooling heat dissipation is similar to the air cooling heat dissipation, only the liquid cooling heat dissipation uses circulating liquid, water cooling blocks and the like, and the circulating liquid moves heat from the water cooling blocks to the heat exchanger and finally dissipates the heat, so that the heat dissipation can be completed.

In the prior art, a liquid supply structure of a liquid cooling heat dissipation system generally comprises a liquid supply control assembly, wherein the liquid supply control assembly comprises a liquid supply pump, a liquid supply pipe and a switch valve, the switch valve is arranged on the liquid supply pipe, and the liquid supply pump is connected with the liquid supply pipe to provide circulating power for liquid in the liquid supply pipe. If the liquid supply pump fails, the cold liquid distribution fails, and the reliability of the heat dissipation system is affected, so that a scheme for considering redundancy and fault tolerance for CDU configuration appears in the industry later, a plurality of CDUs are configured, one CDU fails, and the other CDU is started to work for cold liquid distribution. This necessarily results in a larger number of CDUs being configured, with a corresponding increase in cost, and, for situations where multiple heat exchange units are required to be supplied with cold liquid, a larger number of CDUs are configured, and for those requirements where space design is limited and cost is also required to be controlled, multiple CDUs cannot be configured to meet fault tolerance schemes at all, for example: some liquid cooling heat dissipation systems of servers/data centers have limited design space and are required to have very high reliability, so that it is difficult to find a liquid supply structure capable of meeting various requirements on reliability in terms of space, cost and liquid cooling heat dissipation operation life in the current market.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In view of the above, the main object of the present utility model is to provide a parallel redundant pump liquid supply structure, which utilizes more than two groups of liquid supply control components arranged in parallel, combines the arrangement of one-way valves, ensures reliable liquid supply control by not affecting the operation start and stop of any group of liquid supply control components, utilizes a transfer box to integrally arrange one-way valves and liquid outlets, facilitates the arrangement of one-way valves, and is also convenient for arranging a corresponding number of liquid outlets for a multi-channel heat exchange unit to use, has good structural compactness, and is suitable for being applied to CDU products.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a liquid supply structure of parallel redundant pump comprises a liquid supply control assembly;

the device also comprises an adapter box, wherein the adapter box is provided with more than two mounting ports and more than one liquid outlet which are arranged at intervals;

the liquid supply control assembly is provided with more than two groups, each group of liquid supply control assembly comprises a liquid supply pump and a one-way valve, each one-way valve is provided with a pipe joint end and a box joint end, the box joint ends of the one-way valves are respectively arranged at corresponding mounting ports, and the pipe joint ends are exposed out of the transfer box and are connected with the output ends of the corresponding liquid supply pumps.

As a preferred scheme, the check valve comprises a valve shell and a valve core assembly, wherein the valve shell is tubular, two ends of the valve shell are communicated, the valve core assembly comprises a clamping ring, a spring seat, a pressure spring and a plug which are sequentially arranged from a box joint end towards a pipe joint end, two ends of the pressure spring respectively act on the spring seat and the plug, the clamping ring and the spring seat are fixed in position relative to the valve shell, and the clamping ring and the spring seat are provided with a first through hole and a second through hole which are communicated with each other.

As a preferable mode, the inner wall surface of the box joint end of the valve housing is provided with a clamping groove, the clamping ring is arranged in the clamping groove, and the spring seat is positioned on the inner side of the clamping ring.

As a preferable scheme, the bottom wall and/or the top wall of the transfer box are/is provided with mounting edges, the mounting openings are respectively arranged on the left side wall and the right side wall of the transfer box and are arranged in a staggered manner, and the liquid outlet is arranged on the front side wall and/or the rear side wall of the transfer box.

As a preferable scheme, the liquid outlet and the mounting port are arranged in a staggered manner.

As a preferable scheme, the liquid supply pumps of the liquid supply control assembly are respectively connected to the same control board, so that any liquid supply pump can be switched and controlled to start and stop according to needs by utilizing the control board.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal shows that the utility model mainly utilizes more than two groups of liquid supply control components which are arranged in parallel, combines the arrangement of the one-way valves, ensures that the work start and stop of any group of liquid supply control components are not affected by each other, ensures reliable liquid supply control, utilizes the switching box to integrally arrange the one-way valves and the liquid outlets, facilitates the arrangement of the one-way valves, is convenient for arranging the corresponding number of liquid outlets for the multi-way heat exchange unit to use, has good structural compactness and is suitable for being applied to CDU products;

the liquid supply structure of the parallel redundant pump is based on the fact that the CDU must consider fault tolerance, the liquid supply pump most likely to fail in the CDU is redundant, meanwhile, the switching box is used for integrating the one-way valve and the liquid outlet, the liquid supply pumps are integrated, liquid outlet distribution connection is very convenient, and the whole liquid supply structure meets the reliability multi-aspect requirements in the aspects of space, cost and liquid cooling heat dissipation operation life.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a one-way valve of an embodiment of the present utility model;

FIG. 3 is a connection block diagram of an embodiment of the present utility model.

The attached drawings are used for identifying and describing:

the liquid supply pump 1, the check valve 2, the pipe joint end 21, the box joint end 22, the valve housing 201, the annular stop edge 202, the positioning washer 203, the external thread 204, the clamping ring 205, the spring seat 206, the pressure spring 207, the plug 208, the sealing ring 2081, the guide cone ring surface 209, the adapter box 3, the mounting opening 31, the liquid outlet 32, the mounting edge 33 and the control panel 4.

Detailed Description

Referring to fig. 1 to 3, specific structures of embodiments of the present utility model are shown.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

The utility model provides a parallelly connected redundant pump feed liquid structure, is including feed liquid control assembly, feed liquid control assembly is including feed liquid pump 1, feed liquid pipe and check valve 2, check valve 2 sets up on the feed liquid pipe, feed liquid pump 1 connects in the feed liquid pipe in order to provide circulating power for the intraductal liquid of feed liquid. The device also comprises an adapter box 3, wherein more than two mounting ports 31 and more than one liquid outlet 32 are arranged on the adapter box 3 at intervals; the liquid supply control assembly is provided with more than two groups, the check valves 2 are respectively provided with a pipe joint end 21 and a box joint end 22, the box joint ends 22 of the check valves 2 are respectively arranged at corresponding mounting ports 31, the pipe joint ends 21 are exposed outside the adapter box 3 and are connected with output ends of corresponding liquid supply pipes, and the output ends of the liquid supply pumps 1 are respectively connected with input ends of the corresponding liquid supply pipes. The length of the liquid supply pipe can be selected according to needs, and the liquid supply pipe is not required to be arranged, namely: each group of liquid supply control components comprises a liquid supply pump 1 and a one-way valve 2, the pipe joint end 21 is exposed outside the transfer box 3 and connected with the output end of the corresponding liquid supply pump 1, the structure of the pipe joint end 21 and/or the output end of the liquid supply pump 1 can be modified and designed, so that the pipe joint end 21 and/or the output end of the liquid supply pump 1 can be matched, or the pipe joint end 21 and the liquid supply pump can be connected based on a short joint.

The check valve 2 comprises a valve housing 201 and a valve core assembly, the valve housing 201 is tubular with two through ends, the pipe joint end 21 and the box joint end 22 are respectively formed at two ends of the valve housing 201, a plurality of convex rings are arranged on the outer peripheral wall surface of the pipe joint end 21 and are used for being tightly matched with a liquid supply pipe, an annular stop edge 202, a positioning washer 203 and an external thread 204 are arranged on the outer peripheral wall surface of the box joint end 22, the annular stop edge 202, the positioning washer 203 and the external thread 204 are sequentially arranged from the pipe joint end 21 towards the outer end of the box joint end 22, the positioning washer 203 is installed in a limiting groove of the annular stop edge 202, when the check valve 2 is installed at an installation port 31 of the transfer box 3, the pipe joint end 21 is connected with the inner thread wall surface of the installation port 31 by utilizing the external thread 204 in a threaded manner, the annular stop edge 202 abuts against the outer wall surface of the transfer box 3 when the threads rotate, and at the moment, the positioning washer 203 (generally a rubber ring and a sealing ring) is pressed and deformed to be tightly contacted between the outer wall surface of the transfer box 3 and a limiting groove of the annular stop edge 202, and the sealing and stable installation of the check valve 2 on the transfer box 3 is achieved. The valve core assembly comprises a clamping ring 205, a spring seat 206, a pressure spring 207 and a plug 208 which are sequentially arranged from the box joint end 22 towards the joint end 21, wherein two ends of the pressure spring 207 respectively act on the spring seat 206 and the plug 208, the clamping ring 205 and the spring seat 206 are fixed in position relative to the valve housing 201, and are provided with a first through hole and a second through hole which are mutually communicated, and the first through hole and the second through hole are communicated with two ends of the valve housing 201.

The inner wall surface of the box joint end 22 of the valve housing 201 is provided with a clamping groove, the clamping ring 205 is installed in the clamping groove, the spring seat 206 is located at the inner side of the clamping ring 205, the clamping ring 205 is utilized to form stop positioning for the spring seat 206, here, the outer end of the box joint end 22 of the valve housing 201 is provided with a guide cone ring surface 209 extending towards the clamping groove, the guide cone ring surface is gradually reduced inwards, the clamping ring 205 is conveniently installed, in general, a positioning groove penetrating inwards through the clamping groove can be arranged at the outer end of the box joint end 22 of the valve housing 201, peripheral lugs of the clamping ring 205 are installed in the clamping groove corresponding to the positioning groove, and then the clamping ring 205 is rotated to enable the peripheral lugs to be screwed into the clamping groove to be not opposite to the positioning groove, so that a reliable stop is formed. In the mounting, the plug 208 is first fitted into the valve housing 201 from the outer end of the box end 22 of the valve housing 201, the plug 208 is brought into sealing contact with the stepped corner of the inner wall surface of the pipe end 21 of the valve housing 201 by the seal ring 2081 at the small stepped position, the pressure spring 207 is then fitted into the valve housing 201 from the outer end of the box end 22 of the valve housing 201, and is abutted against the plug 208, the spring seat 206 is then fitted into the valve housing 201 from the outer end of the box end 22 of the valve housing 201, and is abutted against the other end of the pressure spring 207, and finally the retainer 205 is fitted. Because the pressure spring 207 forms the pressure to the spring seat 206, therefore, the spring seat 206 also keeps the pressure to the clamping ring 205 all the time, so that the clamping ring 205 keeps the pressure to the wall surface of the clamping groove all the time, the clamping ring 205 can not rotate, and the phenomenon that the peripheral lugs are separated from the positioning groove due to the rotation of the clamping ring 205 is avoided. When the liquid enters from the pipe joint end 21 of the valve housing 201, the liquid pressure pushes the plug 208 so that the pressure spring 207 is compressed toward the side where the spring seat 206 is located, at this time, the seal ring 2081 on the small step position of the plug 208 is far from the step corner of the inner wall surface of the pipe joint end 21, a gap is formed for the liquid to enter, and then flows out from the outer end of the tank head end 22 of the valve housing 201 through the second through hole and the first through hole in order and flows into the adapter tank 3.

The bottom wall and/or the top wall of the transfer box 3 are/is provided with mounting edges 33, the mounting openings 31 are respectively arranged on the left side wall and the right side wall of the transfer box 3 and are arranged in a staggered manner, and the liquid outlet 32 is arranged on the front side wall and/or the rear side wall of the transfer box 3. The liquid outlet 32 and the mounting opening 31 are arranged in a staggered manner. The liquid supply pumps 1 of the liquid supply control assembly are respectively connected to the same control board 4, so that any liquid supply pump 1 can be switched and controlled to start or stop according to requirements by using the control board 4, for example: the redundant design's water pump control procedure, first pump body and second pump body work in turn, and the first pump body can normally work when the design of check valve 2 guarantees that the second pump body stops, and the operation of first pump body and second pump body is monitored in real time to control procedure, and when one of them pump stops because of the trouble, another can keep working constantly.

The input ends of the plurality of liquid supply pumps 1 are commonly connected to a liquid storage unit (e.g., a liquid storage tank). In practical design, the liquid supply structure of this embodiment may be manufactured as a module, that is: two or more groups of liquid supply control components and the transfer box 3 are arranged in the shell, a liquid input port, a liquid outlet 32 and an electrical interface are arranged outside the shell, the liquid input port is used for being connected with a liquid storage unit and the like for liquid supply, the liquid input port is communicated with the input end of the liquid supply pump 1 in the shell, the electrical interface is used for being electrically connected with a control panel, the liquid supply pump 1 can be powered and signal control connected, a direct connection cable or a connector can be used for plug-in connection, the liquid outlet 32 is exposed out of the shell, connection of the heat exchange unit can be facilitated, and further, as a plurality of liquid outlets 32 are generally arranged outside the shell, a switch valve is arranged on the liquid outlet 32, the heat exchange unit needs to be connected for liquid supply, the switch valve can be opened, and is not used for being connected with the heat exchange unit for liquid supply, and can be selectively closed. When the device is applied, the device is of a modular structure, and is convenient to install and apply. The shell can be designed into an openable structure, so that subsequent overhauling and maintenance are facilitated.

The utility model mainly uses more than two groups of liquid supply control components which are arranged in parallel, combines the arrangement of the one-way valves 2, ensures that the operation start and stop of any group of liquid supply control components are not affected, ensures reliable liquid supply control, integrates the one-way valves 2 and the liquid outlets 32 by using the switching box 3, facilitates the arrangement of the one-way valves 2, also facilitates the arrangement of the corresponding number of liquid outlets 32 to supply the multi-channel heat exchange units for use, has good structural compactness and is suitable for being applied to CDU products;

the liquid supply structure of the parallel redundant pump has the advantages that fault tolerance must be considered based on the CDU, the liquid supply pump 1 which most likely to fail in the CDU is redundant, meanwhile, the switching box 3 is used for integrating the one-way valve 2 and the liquid outlet 32, the arrangement of the liquid supply pumps 1 is integrated, liquid distribution connection is very convenient, and the whole liquid supply structure meets the reliability multi-aspect requirements on space, cost and liquid cooling heat dissipation operation life.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. The utility model provides a parallelly connected redundant pump feed liquid structure, including feed liquid control assembly, its characterized in that:

2. The parallel redundant pump fluid supply structure of claim 1, wherein: the check valve comprises a valve shell and a valve core assembly, wherein the valve shell is tubular, two ends of the valve core assembly are communicated, the valve core assembly comprises a clamping ring, a spring seat, a pressure spring and a plug which are sequentially arranged from a box joint end towards a pipe joint end, two ends of the pressure spring respectively act on the spring seat and the plug, the clamping ring and the spring seat are fixed relative to the valve shell, and the clamping ring and the spring seat are provided with a first through hole and a second through hole which are communicated with each other.

3. A parallel redundant pump fluid supply structure according to claim 2 wherein: the inner wall surface of the box joint end of the valve shell is provided with a clamping groove, the clamping ring is arranged in the clamping groove, and the spring seat is positioned at the inner side of the clamping ring.

4. The parallel redundant pump fluid supply structure of claim 1, wherein: the bottom wall and/or the top wall of the transfer box are/is provided with mounting edges, the mounting openings are respectively arranged on the left side wall and the right side wall of the transfer box and are arranged in a staggered mode, and the liquid outlet is arranged on the front side wall and/or the rear side wall of the transfer box.

5. The parallel redundant pump fluid supply structure of claim 4 wherein: the liquid outlet and the mounting port are arranged in a staggered mode.

6. The parallel redundant pump fluid supply structure of claim 1, wherein: and liquid supply pumps of the liquid supply control assembly are respectively connected to the same control panel.