Automatic liquid supplementing system

Abstract

The utility model discloses an automatic liquid supplementing system which comprises a water supplementing tank, a water supplementing pump, a water supplementing pipe, a pressure digital display meter and a time delay relay, a liquid level switch is arranged on the water supplementing tank, the input end of the water supplementing pump is communicated with the bottom of the water supplementing tank, the water supplementing pump is electrically connected with the liquid level switch, and the two ends of the water supplementing pipe are communicated with the output end of the water supplementing pump and a circulating water cooling system respectively. A pressure sensor is arranged at the end, close to the circulating water cooling system, of the water supplementing pipe, the pressure digital display meter is electrically connected with the pressure sensor and the water supplementing pump, and the delay relay is electrically connected with the pressure digital display meter and the water supplementing pump. According to the utility model, the pressure digital display meter detects the pressure in the circulating water cooling system in real time through the pressure sensor, and is combined with the time-delay relay to judge the pressure fluctuation condition, so that the circulating water cooling system is automatically supplemented with water accurately through the water supplementing pump under the condition of preventing the influence of the pressure fluctuation; therefore, water is effectively prevented from being replenished by mistake due to pressure fluctuation, and difficulty and cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of circulating water cooling systems, and particularly relates to an automatic liquid replenishment system. Background Art

[0002] In circulating water cooling systems such as power, electronic devices, and wind power, the pressure within the system decreases due to reasons such as the gradual expulsion of air within the system; if this pressure is less than the normal operating pressure of the system, it will cause the system to shut down due to inability to operate normally, and it is necessary to replenish the water cooling medium into the system.

[0003] Existing technical solutions often adopt the method of manual intervention, specifically by replenishing the water cooling medium into the system to maintain the normal operating pressure of the system; although this method can solve the problem of pressure reduction, it requires manual operation, and due to the relatively high operation difficulty, professional operators are needed for the operation, which increases the operating cost of the system; secondly, manual operation may result in operation errors, thereby causing the pressure within the system to be unstable, and further affecting the normal operation of the equipment.

[0004] There is also a method in existing technical solutions of separately configuring a set of water replenishing device for the circulating water cooling system; among them, the water replenishing device can be controlled by the control system of the equipment, but this involves changes to the relevant programs and control logics of the equipment control system, and the difficulty is relatively high; in addition, the water replenishing device can also be equipped with a PLC control system by itself, but the cost of the PLC control system is relatively high. Summary of the Utility Model

[0005] The utility model provides an automatic liquid replenishment system to overcome the defects of the existing technology, which is beneficial to reducing the difficulty and cost.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] An automatic liquid replenishment system is provided, which includes:

[0008] A water replenishing tank, on which a liquid level switch is arranged;

[0009] A water replenishing pump, the input end of which is communicated with the bottom of the water replenishing tank, and the water replenishing pump is electrically connected to the liquid level switch;

[0010] A water replenishing pipe, both ends of which are respectively communicated with the output end of the water replenishing pump and the circulating water cooling system, and a pressure sensor is arranged at one end of the water replenishing pipe close to the circulating water cooling system;

[0011] A pressure digital display meter, which is electrically connected to the pressure sensor and the water replenishing pump;

[0012] A time delay relay, which is electrically connected to the pressure digital display meter and the water replenishing pump.

[0013] The beneficial effects of adopting the above technical solution are as follows: The pressure digital display meter detects the pressure in the circulating water cooling system in real time through a pressure sensor, and combines with a time-delay relay to judge the pressure fluctuation situation, so as to accurately automatically replenish water to the circulating water cooling system through a make-up water pump under the condition of preventing the influence of pressure fluctuation, thereby effectively preventing mis-water replenishment caused by pressure fluctuation; moreover, the automatic liquid replenishment system does not need to be connected to the control system of the equipment, nor does it need a PLC control system with a high cost price, which is beneficial to reducing the difficulty and cost; in addition, the input end of the make-up water pump is communicated with the bottom of the make-up water tank, so that the cavity of the make-up water pump and the pipelines at both ends thereof are always filled with the medium, thereby avoiding the problem that the make-up water pump cannot be used when the water-cooling medium in the cavity flows back to form a cavity during the period when the make-up water pump is stopped.

[0014] In one embodiment, an electric control box is arranged on the make-up water tank, and a pressure digital display meter and a time-delay relay are arranged in the electric control box.

[0015] The beneficial effects of adopting the above technical solution are as follows: The electric control box can install electrical components such as a pressure digital display meter and a time-delay relay, so as to use the electric control box to protect electrical components such as a pressure digital display meter and a time-delay relay.

[0016] In one embodiment, an air filter is arranged on the upper part of the make-up water tank.

[0017] The beneficial effects of adopting the above technical solution are as follows: Air can be inhaled from the air filter during water replenishment, and the air filter can prevent impurities such as dust from entering the make-up water tank.

[0018] In one embodiment, a quick-install liquid filling port is arranged on the upper part of the make-up water tank.

[0019] The beneficial effects of adopting the above technical solution are as follows: Such a setting is convenient for quickly replenishing the water-cooling medium into the make-up water tank.

[0020] In one embodiment, a filter is arranged between the input end of the make-up water pump and the bottom of the make-up water tank.

[0021] The beneficial effects of adopting the above technical solution are as follows: Such a setting is to filter out the solids in the liquid of the water-cooling medium, which is beneficial for the make-up water pump to replenish water to the circulating water cooling system.

[0022] In one embodiment, a safety valve is arranged at the output end of the make-up water pump, and the discharge port of the safety valve is communicated with the upper part of the make-up water tank.

[0023] The beneficial effects of adopting the above technical solution are as follows: Such a setting is to prevent the pressure at the output end of the make-up water pump from being too high, thereby playing a protective role.

[0024] In one embodiment, a check valve is arranged on the make-up water pipe, and the check valve is located between the output end of the make-up water pump and the pressure sensor.

[0025] The beneficial effects of adopting the above technical solution are as follows: By setting it in this way, the backflow of the water cooling medium can be prevented.

[0026] In one embodiment, a visual liquid level gauge is provided on the side of the water replenishing tank.

[0027] The beneficial effects of adopting the above technical solution are as follows: By setting it in this way, it is convenient to observe the liquid level in the water replenishing tank.

[0028] In one embodiment, a mounting bracket is fixedly connected to the lower end of the water replenishing tank.

[0029] The beneficial effects of adopting the above technical solution are as follows: By setting it in this way, it is convenient to install and fix it in different scenarios by using the mounting bracket.

[0030] The beneficial effects of the present utility model are as follows:

[0031] The pressure digital display meter detects the pressure in the circulating water cooling system in real time through the pressure sensor, and combines with the time-delay relay to judge the pressure fluctuation situation, so as to accurately automatically replenish water to the circulating water cooling system through the water replenishing pump under the condition of preventing the influence of pressure fluctuation, thereby effectively preventing mis-water replenishment caused by pressure fluctuation; and the automatic liquid replenishing system does not need to be connected to the control system of the equipment, nor does it need a PLC control system with a high cost price, which is beneficial to reducing the difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Hereinafter, the present utility model will be described in more detail based on embodiments and with reference to the drawings.

[0033] Wherein:

[0034] Figure 1 shows a schematic structural diagram of an embodiment of the present utility model;

[0035] Figure 2 shows Figure 1 the rear view of

[0036] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0037] Reference numerals:

[0038] 1 - water replenishing tank, 2 - liquid level switch, 3 - filter, 4 - water replenishing pump, 5 - water replenishing pipe, 6 - pressure sensor, 7 - check valve, 8 - safety valve, 9 - quick-install liquid filling port, 10 - air filter, 11 - electric control box, 12 - mounting bracket, 13 - visual liquid level gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present utility model will be further described below with reference to the drawings.

[0040] The utility model provides an automatic liquid replenishment system, as Figure 1 shown, which includes:

[0041] A water replenishing tank 1, on which a liquid level switch 2 is arranged. The liquid level switch 2 can automatically determine whether the water-cooling medium in the water replenishing tank 1 is too little;

[0042] A water replenishing pump 4, the input end of which is communicated with the bottom of the water replenishing tank 1. The water replenishing pump 4 is electrically connected to the liquid level switch 2, and the water replenishing pump 4 provides power for automatic water replenishment;

[0043] A water replenishing pipe 5, both ends of which are respectively communicated with the output end of the water replenishing pump 4 and the circulating water-cooling system. One end of the water replenishing pipe 5 close to the circulating water-cooling system is provided with a pressure sensor 6;

[0044] A pressure digital display meter, which is electrically connected to the pressure sensor 6 and the water replenishing pump 4;

[0045] A time delay relay, which is electrically connected to the pressure digital display meter and the water replenishing pump 4.

[0046] It can be understood that the pressure digital display meter detects the pressure in the circulating water-cooling system in real time through the pressure sensor 6, and combines with the time delay relay to judge the pressure fluctuation situation, so as to accurately carry out automatic water replenishment to the circulating water-cooling system through the water replenishing pump 4 under the condition of preventing the influence of pressure fluctuation, thereby effectively preventing mis-water replenishment caused by pressure fluctuation; and the automatic liquid replenishment system does not need to be connected to the control system of the equipment, nor does it need a PLC control system with a high cost price, which is beneficial to reducing the difficulty and cost; in addition, the input end of the water replenishing pump 4 is communicated with the bottom of the water replenishing tank 1, so that the cavity of the water replenishing pump 4 and the pipelines at both ends thereof are always filled with the medium, thereby avoiding the problem that the water replenishing pump 4 cannot be used when the water-cooling medium in the cavity flows back to form a cavity during the period when the water replenishing pump 4 is stopped.

[0047] In one embodiment, an electric control box 11 is arranged on the water replenishing tank 1, and a pressure digital display meter and a time delay relay are arranged in the electric control box 11.

[0048] It can be understood that the electric control box 11 can install electrical components such as a pressure digital display meter and a time delay relay, so as to protect the electrical components such as the pressure digital display meter and the time delay relay by using the electric control box 11.

[0049] It should be noted that other necessary electrical components can also be installed in the electric control box 11 to form an electrical hard circuit with the pressure digital display meter and the time delay relay.

[0050] In one embodiment, an air filter 10 is arranged on the upper part of the water replenishing tank 1.

[0051] It can be understood that air can be inhaled from the air filter 10 during water replenishment, and the air filter 10 can prevent impurities such as dust from entering the water replenishing tank 1.

[0052] In one embodiment, a quick - loading liquid filling port 9 is provided at the upper part of the makeup water tank 1 to facilitate quickly replenishing the water - cooling medium into the makeup water tank 1.

[0053] In one embodiment, a filter 3 is provided between the input end of the makeup water pump 4 and the bottom of the makeup water tank 1 to filter out solids in the liquid of the water - cooling medium, thereby facilitating the makeup water pump 4 to supply water to the circulating water - cooling system.

[0054] In one embodiment, a safety valve 8 is provided at the output end of the makeup water pump 4. The discharge port of the safety valve 8 communicates with the upper part of the makeup water tank 1 to prevent the pressure at the output end of the makeup water pump 4 from being too high, thus playing a protective role.

[0055] In one embodiment, a check valve 7 is provided on the makeup water pipe 5. The check valve 7 is located between the output end of the makeup water pump 4 and the pressure sensor 6 to prevent the water - cooling medium from flowing back.

[0056] In one embodiment, as Figure 2 shown, a visual liquid level gauge 13 is provided on the side of the makeup water tank 1 to facilitate observing the liquid level in the makeup water tank 1.

[0057] In one embodiment, the lower end of the makeup water tank 1 is fixedly connected with a mounting bracket 12 to facilitate installing and fixing it in different scenarios by using the mounting bracket 12.

[0058] In addition, the liquid replenishing method of the automatic liquid replenishing system includes the following steps:

[0059] The pressure digital display preset a first preset pressure value and a second preset pressure value higher than the first preset value, and the time - delay relay preset a first preset duration and a second preset duration;

[0060] The pressure digital display detects whether the pressure in the circulating water - cooling system is lower than the first preset pressure value through the pressure sensor 6; if the pressure in the circulating water - cooling system is not lower than the first preset pressure value, then continuously detect the pressure in the circulating water - cooling system; if the pressure in the circulating water - cooling system is lower than the first preset pressure value, the normally - open low - alarm contact of the pressure digital display closes, and the time - delay relay times the closing duration of the normally - open low - alarm contact. And when the closing duration of the normally - open low - alarm contact exceeds the first preset duration, the makeup water pump 4 starts to supply water to the circulating water - cooling system, and the time - delay relay times the water - replenishing duration;

[0061] When the water - replenishing duration exceeds the second preset duration and the low - alarm of the pressure digital display has disappeared, the makeup water pump 4 is turned off and stops supplying water to the circulating water - cooling system;

[0062] When the pressure in the circulating water - cooling system is higher than the second preset pressure value, the normally - open high - alarm contact of the pressure digital display closes, and the makeup water pump 4 is turned off and stops supplying water to the circulating water - cooling system;

[0063] When the liquid level in the makeup water tank 1 is too low, the liquid level switch 2 is triggered, and the makeup water pump 4 is closed to stop replenishing water to the circulating water cooling system.

[0064] It can be understood that the present utility model can effectively prevent false water replenishment caused by pressure fluctuations and can also perform logical judgment and operation on whether the circulating water cooling system to be replenished truly needs water replenishment by setting a pressure alarm value range and combining it with a time relay; however, it should be noted that the leakage and failure of the circulating water cooling system are not within the application scope of the present utility model.

[0065] It should be noted that if the water replenishment duration exceeds the second preset duration and the low alarm of the pressure digital display still has not disappeared, that is, when the pressure in the circulating water cooling system is still lower than the first preset pressure value, the makeup water pump 4 will not stop replenishing water to the circulating water cooling system; in addition, during the water replenishment process, the pressure in the circulating water cooling system is detected in real time by the pressure sensor 6, and it is judged whether the pressure in the circulating water cooling system is higher than the second preset pressure value.

[0066] It should also be noted that the first preset pressure value, the second preset pressure value, the first preset duration, and the second preset duration can all be selected according to the actual situation on site, so they will not be elaborated here.

[0067] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0068] Although the present utility model has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present utility model. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. An automatic liquid replenishment system, characterized in that: include: A water replenishing tank (1), wherein the water replenishing tank (1) is provided with a liquid level switch (2); A water replenishment pump (4), wherein an input end of the water replenishment pump (4) is connected to the bottom of the water replenishment tank (1), and the water replenishment pump (4) is electrically connected to the liquid level switch (2); A water supply pipe (5), wherein both ends of the water supply pipe (5) are respectively connected to the output end of the water supply pump (4) and the circulating water cooling system, and a pressure sensor (6) is provided at one end of the water supply pipe (5) close to the circulating water cooling system; A pressure digital display, the pressure digital display being electrically connected to the pressure sensor (6) and the water supply pump (4); A time delay relay, wherein the time delay relay is electrically connected to the pressure digital display meter and the water supply pump (4).

2. The automatic liquid replenishment system according to claim 1, characterized in that: The water replenishment tank (1) is provided with an electric control box (11), and the pressure digital display meter and the time delay relay are arranged in the electric control box (11).

3. The automatic fluid replenishment system according to claim 1, characterized in that: An air filter (10) is arranged on the upper part of the water replenishment tank (1).

4. The automatic fluid replenishment system according to claim 1, characterized in that: The upper part of the water replenishment tank (1) is provided with a quick-install liquid filling port (9).

5. The automatic fluid replenishment system according to claim 1, characterized in that: A filter (3) is provided between the input end of the water replenishment pump (4) and the bottom of the water replenishment tank (1).

6. The automatic fluid replenishment system according to claim 1, characterized in that: The output end of the water replenishment pump (4) is provided with a safety valve (8), and the discharge port of the safety valve (8) is connected to the upper part of the water replenishment tank (1).

7. The automatic fluid replenishment system according to claim 1, characterized in that: The water supply pipe (5) is provided with a check valve (7), and the check valve (7) is located between the output end of the water supply pump (4) and the pressure sensor (6).

8. The automatic fluid replenishment system according to claim 1, characterized in that: A visual liquid level meter (13) is provided on the side of the water replenishment tank (1).

9. The automatic fluid replenishment system according to claim 1, characterized in that: The lower end of the water replenishment tank (1) is fixedly connected to a mounting bracket (12).

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