CN214949949U

CN214949949U - Circulating cooling system

Info

Publication number: CN214949949U
Application number: CN202120176181.9U
Authority: CN
Inventors: 吉洪伟
Original assignee: Sanhe Tongfei Refrigeration Co ltd
Current assignee: Sanhe Tongfei Refrigeration Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-11-30
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a circulative cooling system, include: a main water supply pipeline, on which a main water pump is arranged; an auxiliary water supply pipeline which is arranged in parallel with the main water supply pipeline, wherein an auxiliary water pump is arranged on the auxiliary water supply pipeline; a main flow valve provided on the main water supply line; the auxiliary flow valve is used for being arranged on the auxiliary water supply pipeline; the water inlet of the converter valve is simultaneously communicated with the main water supply pipeline and the auxiliary water supply pipeline; the main water pump and the auxiliary water pump lead cooling water out of the water tank; the water return pipeline is led out from a water outlet of the converter valve and is led to the water tank; and the heat exchanger is arranged on the water return pipeline.

Description

Circulating cooling system

Technical Field

The utility model relates to a be converter valve refrigerated circulative cooling system.

Background

The converter valve is used for converting alternating current and direct current, and in the conversion process, the converter valve can generate heat, and the heat generated by the converter valve is different according to different series quantities of thyristors. However, in the circulating cooling system for exchanging heat for the converter valve in the prior art, the flow control range of the cooling water is small and is not matched with the heat productivity range of the converter valve, so that the heat exchange valve cannot work in a reasonable and stable temperature environment.

SUMMERY OF THE UTILITY MODEL

To the above technical problem that exists among the prior art, the embodiment of the utility model provides a circulative cooling system.

For solving the technical problem, the embodiment of the utility model adopts the following technical scheme:

a hydronic cooling system, comprising:

a main water supply pipeline, on which a main water pump is arranged;

an auxiliary water supply pipeline which is arranged in parallel with the main water supply pipeline, wherein an auxiliary water pump is arranged on the auxiliary water supply pipeline;

a main flow valve provided on the main water supply line;

the auxiliary flow valve is used for being arranged on the auxiliary water supply pipeline;

the water inlet of the converter valve is simultaneously communicated with the main water supply pipeline and the auxiliary water supply pipeline;

the main water pump and the auxiliary water pump lead cooling water out of the water tank;

the water return pipeline is led out from a water outlet of the converter valve and is led to the water tank;

and the heat exchanger is arranged on the water return pipeline.

Preferably, an intermediate pipeline is arranged between the main water supply pipeline and the auxiliary water supply pipeline;

a first electromagnetic switch valve is arranged on the main water supply pipeline, and a second electromagnetic switch valve is arranged on the auxiliary water supply pipeline; and a third electromagnetic switch valve is arranged on the middle pipeline.

Preferably, a back pressure valve is arranged on the return pipeline.

Preferably, the back pressure valve is a check valve having a certain opening pressure.

Preferably, the cooling water in the main water supply pipeline and the cooling water in the auxiliary water supply pipeline are collected through a collecting pipeline; wherein:

the collecting pipeline is communicated with a water inlet of the converter valve;

a bypass pipeline is led out from the collecting pipeline and leads to the water tank;

a pressure sensor is arranged on the collecting pipeline and is used for checking the pressure of the cooling water flowing through the collecting pipeline;

and a fourth electromagnetic switch valve is arranged on the bypass pipeline.

Compared with the prior art, the utility model discloses a circulative cooling system's beneficial effect is:

1. based on the different calorific capacity of converter valve, utilize main, vice two water pumps to provide cooling water, utilize two main, vice flow valve control simultaneously to supply the flow of cooling water, this adjustment accuracy that has not only improved cooling water flow has still improved the control range of cooling water flow, and can also practice thrift the required power consumption of water pump operation.

2. The air pocket can be effectively prevented from occurring in the water return pipeline by arranging the backpressure valve on the water return pipeline.

3. Through setting up by-pass line and pressure sensor and fourth electromagnetic switch valve, and then can effectively avoid each part of system to damage or the life-span shortens because of appearing extremely high pressure.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic structural diagram of a circulation cooling system according to an embodiment of the present invention.

Reference numerals:

11-main water supply line; 12-secondary water supply line; 13-intermediate piping; 14-a collecting line; 15-a water return pipeline; 21-primary flow valve; 22-secondary flow valve; 31-a main water pump; 32-auxiliary water pump; 41-a first electromagnetic on-off valve; 42-a second electromagnetic switch valve; 43-a third electromagnetic on-off valve; 44-a fourth electromagnetic on-off valve; 50-a converter valve; 60-a heat exchanger; 70-back pressure valve; 80-a water tank; 90-pressure sensor.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in FIG. 1, embodiments of the present disclosure disclose a hydronic cooling system for exchanging heat for a converter valve 50. The circulation cooling system includes: a main water supply line 11, a sub-water supply line 12, an intermediate line 13, a collecting line 14, a return line 15, a bypass line, a main water pump 31, a sub-water pump 32, a main flow valve 21, a sub-flow valve 22, a converter valve 50, a heat exchanger 60, a back pressure valve 70, a pressure sensor 90, a first electromagnetic opening/closing valve 41, a second electromagnetic opening/closing valve 42, a third electromagnetic opening/closing valve 43, a fourth electromagnetic opening/closing valve 44, and a water tank 80.

The main water supply pipeline 11 and the auxiliary water supply pipeline 12 are arranged in parallel; the main water pump 31 and the auxiliary water pump 32 are respectively disposed on the main water supply pipe and the auxiliary water supply pipe 12, the maximum operation power of the main water pump 31 is greater than that of the auxiliary water pump 32, and both the main water pump 31 and the auxiliary water pump 32 obtain cooling water from the water tank 80.

The main flow valve 21 and the secondary flow valve 22 are respectively arranged on the main water supply pipeline 11 and the secondary water supply pipeline 12, and the flow adjusting range of the main flow valve 21 is larger than that of the secondary flow valve 22.

The main water supply line 11 and the sub water supply line 12 are merged at the ends to form a collecting line 14, and the collecting line 14 is connected to the inlet of the converter valve 50 so that the cooling water supplied from the main water pump 31 and/or the sub water pump 32 passes through the converter valve 50 to cool the converter valve 50.

The water return pipeline 15 is positioned between the water outlet of the converter valve 50 and the water tank 80; the heat exchanger 60 is provided on the return line 15, and the water flowing through the converter valve 50 passes through the heat exchanger 60 on the return line 15, and the heat exchanger 60 exchanges heat with the water so that the water is changed into cooling water again to flow back to the water tank 80.

The intermediate pipeline 13 is provided in the main water supply pipeline 11 and the subsidiary water supply pipeline 12, the first electromagnetic opening/closing valve 41 is provided in the main water supply pipeline 11, the second electromagnetic opening/closing valve 42 is provided in the subsidiary water supply pipeline 12, and the third electromagnetic opening/closing valve 43 is provided in the intermediate pipeline 13.

The collecting line 14 is provided with a pressure sensor 90, and the pressure sensor 90 is used for detecting the pressure of the cooling water flowing through the collecting line 14 and entering the converter valve 50. A bypass line, in which the fourth electromagnetic switching valve 44 is arranged, leads from the collecting line 14 to the water tank 80.

The working process of the circulating cooling system is as follows:

when the number of the thyristors connected in series is small and the heat productivity of the converter valve 50 is small, the first electromagnetic valve is closed, the third electromagnetic valve is closed, the second electromagnetic valve is opened, and the auxiliary water pump 32 is used for supplying cooling water with a small flow rate to the converter valve 50 and further providing cooling water with a reasonable flow rate for the reversing valve by adjusting the flow rate hole of the auxiliary flow valve 22.

When the number of the thyristors connected in series is large and the heat value of the heat exchange valve is large, the first electromagnetic switch valve 41 is opened, the second electromagnetic switch valve 42 and the third electromagnetic switch valve 43 are closed, and the main water pump 31 is used for providing cooling water with a large flow rate for the converter valve 50 and further providing cooling water with a reasonable flow rate for the reversing valve by adjusting the flow rate hole of the main flow valve 21.

When the number of thyristors connected in series is large and the heat generation amount of the heat exchange valve is large, the third electromagnetic opening/closing valve 43 is closed, the first electromagnetic opening/closing valve 41 and the second electromagnetic opening/closing valve 42 are opened, the main water pump 31 and the sub water pump 32 supply the cooling water to the converter valve 50 through the main flow rate valve 21 and the sub flow rate valve 22, respectively, and the cooling water of a proper flow rate is supplied to the converter valve by integrally adjusting the main flow rate valve 21 and the sub flow rate valve 22.

If the flow rate orifice of the main flow rate valve 21 is adjusted to the maximum and the main water pump 31 cannot supply the flow rate of the cooling water corresponding to the flow rate orifice, the second electromagnetic switch is closed, the first electromagnetic switch valve 41 and the third electromagnetic switch valve 43 are opened, the main water pump 31 and the auxiliary water pump 32 simultaneously supply the cooling water, and the cooling water passes through the main flow rate valve 21 to match the flow rate orifice.

The purpose of providing the back pressure valve 70 on the return line 15 is to: the cooling water is returned at a pressure during the return process, which avoids the formation of air pockets in the return line. Preferably, a check valve having a certain opening pressure is used as the back pressure valve 70

When the pressure sensor 90 detects an excessive pressure, the fourth electromagnetic opening/closing valve 44 is opened to instantaneously release the pressure of the system to protect the relevant components.

The utility model provides an foretell circulative cooling system's advantage lies in:

1. based on the different calorific capacities of the converter valve 50, the main water pump and the auxiliary water pump are used for providing cooling water, and the main flow valve and the auxiliary flow valve are used for controlling the flow of the cooling water, so that the adjusting precision of the cooling water flow is improved, the adjusting range of the cooling water flow is also improved, and the power consumption required by the operation of the water pumps can be saved.

2. The occurrence of cavitation in the return line 15 can be effectively prevented by providing the back pressure valve 70 on the return line 15.

3. By arranging the bypass line, the pressure sensor 90 and the fourth electromagnetic switch valve 44, damage to components of the system or shortening of the service life of the components due to extremely high pressure can be effectively avoided.

Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or variations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. A hydronic cooling system, comprising:

a main water supply pipeline, on which a main water pump is arranged;

a main flow valve provided on the main water supply line;

and the heat exchanger is arranged on the water return pipeline.

2. The hydronic cooling system according to claim 1, wherein an intermediate line is provided between the main water supply line and the subsidiary water supply line;

3. The hydronic cooling system according to claim 1, wherein a back pressure valve is provided on the water return line.

4. The hydronic system according to claim 3, wherein the back pressure valve is a check valve having a certain opening pressure.

5. The hydronic cooling system according to claim 1, wherein the cooling water in the main water supply line and the cooling water in the subsidiary water supply line are collected by a collecting line; wherein:

and a fourth electromagnetic switch valve is arranged on the bypass pipeline.