CN216343183U

CN216343183U - Cooling system for preventing cooling water from overflowing

Info

Publication number: CN216343183U
Application number: CN202122453428.XU
Authority: CN
Inventors: 徐尚华
Original assignee: Wuxi Crystalht Technology Co ltd
Current assignee: Wuxi Crystalht Technology Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-04-19
Anticipated expiration: 2031-10-12

Abstract

The utility model provides a cooling system for preventing cooling water from overflowing, which comprises a water storage tank, an upper U-shaped pipe and a heat exchanger, wherein an outlet of the water storage tank conveys the cooling water to a water inlet pipe connected with a water inlet end of the heat exchanger through a one-way valve by a water pump, and a water outlet end of the heat exchanger reflows to the water storage tank through a water outlet pipe; the water outlet pipe is further provided with an upper U-shaped pipe, the upper U-shaped pipe is arranged at the horizontal end of the water outlet pipe and comprises an inverted arc-shaped pipe and a pair of vertical pipes which are vertically parallel, the tops of the vertical pipes are connected with the arc-shaped pipe, the bottoms of the vertical pipes are respectively connected with the water outlet pipe, and the arc-shaped pipe is located above the water outlet pipe. The utility model adds the U-shaped pipe, ensures that the cooling water in the water inlet and outlet water pipe and the cooler can not flow through the upper liquid level of the U-shaped pipe by utilizing the principle of liquid level balance, only a small amount of cooling water on the left side of the U-shaped pipe flows back to the water storage tank, has no too much requirement on the volume of the water storage tank, and effectively solves the problem of the backflow of the cooling water in the cooling pipe loop under the condition of stopping.

Description

Cooling system for preventing cooling water from overflowing

Technical Field

The utility model mainly relates to the field of cooling of hydraulic systems, in particular to a cooling system for preventing cooling water from overflowing.

Background

The injection molding machine, the fine blanking equipment and the like are all provided with hydraulic systems, a large amount of heat generated in the work needs to be cooled by a set of water circulation cooling system, the general cooling system comprises a water storage tank, a pump set, an air cooler, a cooling pipe loop and the like, in actual use, when the equipment needing cooling is increased, the volume requirement of the water storage tank is increased correspondingly, however, analysis has revealed that, because of the low position of the reservoir relative to the cooling circuit, a large part of the volume requirement is that a large amount of cooling water originally circulating in the circuit flows back into the reservoir when the cooling water is turned off, if the volume of the water storage tank is not enough, the water storage tank has a site where cooling water flows back and overflows when the water pump stops operating, so that the waste of the cooling water is caused, and if the water storage tank with larger volume is adopted, the waste of space and financial resources can be caused.

SUMMERY OF THE UTILITY MODEL

Aiming at solving the problem of backflow of cooling water in a cooling pipe loop under the condition of non-use in the prior art, the utility model provides a cooling system for preventing the overflow of the cooling water, which comprises a water storage tank 1, an upper U-shaped pipe 2 and a heat exchanger 3, wherein the outlet of the water storage tank 1 is used for conveying the cooling water to a water inlet pipe 6 connected with the water inlet end of the heat exchanger 3 through a one-way valve 5 by a water pump 4, and the water outlet end of the heat exchanger 3 flows back to the water storage tank 1 through a water outlet pipe 7;

the water outlet pipe 7 is further provided with an upper U-shaped pipe 2, the upper U-shaped pipe 2 is arranged at the horizontal end of the water outlet pipe 7, the upper U-shaped pipe 2 comprises an inverted arc-shaped pipe 21 and a pair of vertical pipes 22 which are vertically parallel, the tops of the vertical pipes 22 are connected with the arc-shaped pipe 21, the bottoms of the vertical pipes are respectively connected with the water outlet pipe 7, and the arc-shaped pipe 21 is located above the water outlet pipe 7.

Preferably, the upper liquid level of the upper U-shaped tube 2 is higher than the upper liquid level of the heat exchanger 3, the inlet tube 6 and the outlet tube 7.

Preferably, the spacing between a pair of said vertical tubes 22 is smaller than the tube diameter.

Preferably, the junction between the bottom of the vertical pipe 22 and the water outlet pipe 7 is provided with a rounded corner.

Preferably, the upper U-shaped tube 2 formed by the arced tube 21 and the pair of vertically parallel vertical tubes 22 is arch-shaped.

Preferably, a filter 8 is further installed on the water inlet pipe 6, and the filter 8 is arranged behind the one-way valve 5.

Preferably, a plurality of heat exchangers 3 are provided, the water inlet pipe 6 is branched to the plurality of heat exchangers 3 through each branch pipe, and the water outlet ends of the plurality of heat exchangers 3 are converged to the water outlet pipe 7 through each branch pipe.

The utility model has the beneficial effects that: simple structure, convenient operation increases the U-shaped pipe, utilizes the principle of utilizing liquid level balance to guarantee that the cooling water in business turn over water pipe and the cooler can not flow through the liquid level of the last liquid level of U-shaped pipe, and only a small amount of cooling water in U-shaped pipe left side flows back to the water storage box, can not have too many requirements to the water storage box volume, effectively solves the problem of the cooling water backward flow under the circumstances of stopping use in the cooling tube return circuit.

Drawings

FIG. 1 is a block diagram of the present invention in normal operation;

FIG. 2 is a schematic diagram of the present invention when the water pump is stopped;

FIG. 3 is a block diagram of an embodiment of the present invention;

in the figure, the position of the upper end of the main shaft,

1. a water storage tank; 2. an upper U-shaped pipe 21, an arc-shaped pipe 22 and a vertical pipe; 3. a heat exchanger; 4. a water pump; 5. a one-way valve; 6. a water inlet pipe; 7. a water outlet pipe; 8. a filter; a. the upper liquid level of the upper U-shaped pipe; b. the upper liquid level of the heat exchanger.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the utility model only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, the present invention includes: the water-cooling system comprises a water storage tank 1, an upper U-shaped pipe 2 and a heat exchanger 3, wherein an outlet of the water storage tank 1 conveys cooling water to a water inlet pipe 6 connected with a water inlet end of the heat exchanger 3 through a one-way valve 5 by a water pump 4, and a water outlet end of the heat exchanger 3 returns to the water storage tank 1 through a water outlet pipe 7;

In this embodiment, it is preferred that the upper liquid level of the upper U-shaped tube 2 is higher than the upper liquid level of the heat exchanger 3, the inlet tube 6 and the outlet tube 7.

With the structure, the upper liquid level of the U-shaped pipe is arranged above the upper liquid level of the heat exchanger and the liquid level of the pipeline, so that the principle of liquid level balance can be utilized to ensure that cooling water in the water inlet and outlet water pipe and the cooler cannot flow through the upper liquid level of the U-shaped pipe, and only a small amount of cooling water on the left side of the U-shaped pipe flows back to the water storage tank.

In the present embodiment, it is preferable that the distance between the pair of vertical tubes 22 is smaller than the tube diameter.

Set up above-mentioned structure, prevent to have the cooling water to pile up in last U-shaped pipe, guarantee that arc top pipe top does not have remaining of liquid, and even there is residual water, also can measure very little, a small amount of cooling water backward flow to the water storage box, can not have too many requirements to the water storage box volume.

In the present embodiment, it is preferable that the bottom of the vertical pipe 22 is provided with a rounded corner at the connection with the water outlet pipe 7.

In the present embodiment, it is preferable that the upper U-shaped pipe 2 formed by the arc-shaped pipe 21 and the pair of vertically parallel vertical pipes 22 is of an arch type.

By adopting the structure, no cooling water is left, and in addition, the service life of the pipe can be ensured.

In this embodiment, it is preferred that a filter 8 is further mounted on the inlet pipe 6, said filter 8 being arranged after the non-return valve 5.

By the arrangement of the structure, the water entering the heat exchanger is purified at every time, the impurities are prevented from remaining, and the purpose of prolonging the service life of the heat exchanger can be achieved.

In this embodiment, it is preferable that a plurality of heat exchangers 3 are provided, the water inlet pipe 6 is branched to the plurality of heat exchangers 3 through each branch pipe, and water outlet ends of the plurality of heat exchangers 3 are converged to the water outlet pipe 7 through each branch pipe.

By means of the structure, the purpose of cooling a plurality of cooling devices in need in the working process of the hydraulic system is achieved, and in addition, the situation that troubles are caused by the problem of the volume of the water storage tank is avoided.

In use, the following workflow is included:

1. in normal operation:

with reference to the attached drawing 1, a water pump and a water storage tank are positioned on the ground, cooling water enters a water inlet pipe through a filter and a one-way valve under the action of the water pump and then is distributed to each heat exchanger, heat is taken away through the heat exchangers and passes through a water outlet pipe, when the cooling water reaches an upper U-shaped pipe, a water path firstly flows upwards through the upper end of the U-shaped pipe and then flows downwards to a water tank, and the purpose of cooling equipment is achieved by continuous circulation;

2. when the water pump stops operating:

with the help of the attached drawing 2, under the action of the one-way valve of the water inlet pipe, the cooling water in the water inlet pipe cannot generate backflow phenomenon under the action of gravity, when the U-shaped pipe is arranged, the upper liquid level position of the U-shaped pipe is arranged above the upper liquid level of the heat exchanger and the liquid level of the pipeline, so that the principle of liquid level balance can be utilized to ensure that the cooling water in the water inlet/outlet pipe and the cooler cannot flow through the upper liquid level of the U-shaped pipe, only a small amount of cooling water on the left side of the U-shaped pipe flows back to the water storage tank, and the volume of the water storage tank cannot have too many requirements.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. A cooling system for preventing cooling water from overflowing is characterized by comprising a water storage tank (1), an upper U-shaped pipe (2) and a heat exchanger (3), wherein the outlet of the water storage tank (1) conveys the cooling water to a water inlet pipe (6) connected with the water inlet end of the heat exchanger (3) through a one-way valve (5) by a water pump (4), and the water outlet end of the heat exchanger (3) reflows to the water storage tank (1) through a water outlet pipe (7);

still install U-shaped pipe (2) on outlet pipe (7), it sets up on outlet pipe (7) horizontal end to go up U-shaped pipe (2), it is a pair of including arc pipe (21) and a pair of vertical parallel vertical pipe (22) of inversion to go up U-shaped pipe (2) vertical pipe (22) top is connected with arc pipe (21), and the bottom links to each other with outlet pipe (7) respectively, arc pipe (21) are located the top of outlet pipe (7).

2. The cooling system for preventing overflowing of cooling water according to claim 1, wherein: the upper liquid level of the upper U-shaped pipe (2) is higher than the upper liquid level of the heat exchanger (3), the water inlet pipe (6) and the water outlet pipe (7).

3. The cooling system for preventing overflowing of cooling water according to claim 2, wherein: the distance between the pair of vertical pipes (22) is smaller than the pipe diameter.

4. The cooling system for preventing overflowing of cooling water according to claim 3, wherein: and a fillet is arranged at the joint of the bottom of the vertical pipe (22) and the water outlet pipe (7).

5. The cooling system for preventing overflowing of cooling water according to claim 4, wherein: the upper U-shaped pipe (2) formed by the arc-shaped pipe (21) and the pair of vertical parallel vertical pipes (22) is of an arch shape.

6. The cooling system for preventing overflowing of cooling water according to claim 5, wherein: still install filter (8) on inlet tube (6), filter (8) set up behind check valve (5).

7. The cooling system for preventing overflowing of cooling water according to claim 6, wherein: the heat exchanger (3) is provided with a plurality of, inlet tube (6) through each branch pipe reposition of redundant personnel to a plurality of heat exchanger (3), a plurality of the play water end of heat exchanger (3) converges to outlet pipe (7) through each branch pipe.