CN216342430U - Automatic coolant supply device for generator set - Google Patents

Abstract

The utility model relates to the technical field of automatic control of a generator set, in particular to an automatic coolant supply device for the generator set, which comprises a control panel, a water tank, an electric water pump and an expansion water tank, wherein a water outlet of the water tank close to the bottom is communicated with a water inlet of the electric water pump through a first liquid inlet pipe, a water outlet of the electric water pump is communicated with a water inlet of the expansion water tank through a second liquid inlet pipe, a high-level liquid level sensor and a low-level liquid level sensor are sequentially arranged in the expansion water tank from top to bottom, an overflow port is arranged on the expansion water tank and positioned above the high-level liquid level sensor, the overflow port is communicated with the water inlet of the water tank through an overflow pipe, a water outlet at the bottom of the expansion water tank is connected with a liquid outlet pipe, and a second liquid level sensor is arranged in the liquid outlet pipe; the utility model controls the operation of the electric water pump by monitoring the liquid level in the expansion water tank in real time, realizes the automatic filling of the cooling liquid, and ensures that the device can still work safely when the high-level liquid level sensor fails by arranging the overflow pipe.

Description

A generator set coolant automatic replenishment device

technical field

The utility model relates to the technical field of automatic control of generator sets, in particular to an automatic supply device for cooling liquid of generator sets.

Background technique

When the existing generator set works, it will generate a lot of heat, and at this time, it is necessary to dissipate the high temperature inside it. At present, the cooling liquid circulation system is often used to achieve the purpose of heat dissipation. However, at present, the coolant filling of the cooling system needs to be filled manually, and there is also a lack of corresponding monitoring and early warning measures, and the cost of manual maintenance is high.

Utility model content

The purpose of the utility model is to provide an automatic replenishment device for cooling liquid of a generator set, which can realize self-supply of cooling liquid, realize intelligent control, improve work efficiency, low labor maintenance cost, and can improve the safety of generator set operation. reliability.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

A generator set cooling liquid automatic replenishment device, including a control panel, a water tank, an electric water pump and an expansion water tank, the water outlet of the water tank near the bottom and the water inlet of the electric water pump are connected through a first liquid inlet pipe, and the outlet of the electric water pump is connected. The water inlet and the water inlet of the expansion tank are communicated through the second liquid inlet pipe. The expansion tank is provided with a high level liquid level sensor and a low level liquid level sensor in sequence from top to bottom. The expansion tank is provided with an overflow port. The overflow port is located above the high-level liquid level sensor, the overflow port is communicated with the water inlet of the water tank through the overflow pipe, the water outlet at the bottom of the expansion tank is connected with a liquid outlet pipe, and the liquid outlet pipe is provided with The second liquid level sensor, the electric water pump, the high level liquid level sensor, the low level liquid level sensor and the second liquid level sensor are all electrically connected to the control panel.

Specifically, the first liquid inlet pipe is provided with a filter screen.

Specifically, the second liquid inlet pipe is provided with a one-way valve.

Specifically, a first liquid level sensor is disposed inside the water tank near the bottom side wall, and the first liquid level sensor is electrically connected to the control panel.

Specifically, the top of the water tank is provided with a water injection port, and the bottom of the water tank is provided with a water discharge port.

Specifically, the expansion tank is provided with an exhaust port.

The beneficial effects of the present utility model are:

1. Real-time acquisition of the signals of the high-level liquid level sensor and low-level liquid level sensor in the expansion tank through the control panel enables real-time monitoring of the liquid level in the expansion tank. When the liquid level drops to the position of the low-level liquid level sensor, the control panel Control the electric water pump to work for water injection. When the liquid level rises to the high level of the liquid level sensor, the control panel controls the electric water pump to close and stop the water injection to realize the automatic filling of the coolant;

2. By setting the overflow pipe to ensure that when the high level sensor of the expansion tank fails, the device can still work safely, without causing waste of coolant and safety risks, and improving the reliability of the device;

3. Monitor the cooling liquid in the cooling system by setting the second liquid level sensor. When the cooling system leaks, and the liquid level in the liquid outlet pipe is lower than the second liquid level sensor, the second liquid level sensor will send a signal to the control system. Panel, alarm reminder, easy to find leakage problems in time.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Reference signs: water tank 1; electric water pump 2; expansion tank 3; first liquid inlet pipe 4; second liquid inlet pipe 5; liquid outlet pipe 6; filter screen 7; one-way valve 8; high level liquid level sensor 9; low level Liquid level sensor 10 ; first liquid level sensor 11 ; second liquid level sensor 12 ; overflow pipe 13 ; exhaust port 14 ; water injection port 15 ;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIG. 1, an automatic replenishment device for cooling liquid of a generator set includes a control panel, a water tank 1, an electric water pump 2 and an expansion water tank 3. The water outlet of the water tank 1 near the bottom and the water inlet of the electric water pump 2 pass through the first The liquid inlet pipe 4 is connected, the water outlet of the electric water pump 2 and the water inlet of the expansion tank 3 are connected through the second liquid inlet pipe 5, and the expansion tank 3 is sequentially provided with a high-level liquid level sensor 9 and a low-level liquid level sensor 9 from top to bottom. Liquid level sensor 10, the expansion tank 3 is provided with an overflow port, the overflow port is located above the high-level liquid level sensor 9, and the overflow port passes through the overflow pipe 13 and the water inlet of the water tank 1 The water outlet at the bottom of the expansion tank 3 is connected with a liquid outlet pipe 6, and the liquid outlet pipe 6 is provided with a second liquid level sensor 12, the electric water pump 2, the high level liquid level sensor 9, and the low level liquid level sensor 10. and the second liquid level sensor 12 are both electrically connected to the control panel.

The high and low levels of the water in the expansion tank are collected through the high level sensor 9 and the low level sensor 10 in the expansion tank 3. When the liquid level drops to the low level sensor 10, the control panel controls the electric water pump 2 to pump the coolant from the water tank. 1 is transported to the expansion tank 3. When the liquid level rises to the position of the high-level liquid level sensor 9, the control panel controls the electric water pump 2 to turn off and stop water injection; when the heating volume of the cooling liquid in the cooling system increases, the liquid level in the expansion tank 3 rises. When the liquid level rises to the overflow port, the cooling liquid flows into the water tank 1 through the overflow pipe 13. At the same time, when the high-level liquid level sensor 9 fails, the overflow pipe 13 can also be used to avoid excessive cooling liquid in the expansion tank 3; When coolant leakage occurs in the cooling system, and the liquid level in the liquid outlet pipe is lower than the second liquid level sensor 12, the second liquid level sensor 12 sends a signal to the control panel to give an alarm reminder, which is convenient for timely detection of liquid leakage problems.

As shown in FIG. 1 , the first liquid inlet pipe 4 is provided with a filter screen 7 ; in this embodiment, the cooling liquid is filtered by setting the filter screen 7 to prevent impurities from entering the cooling system of the generator set.

As shown in FIG. 1 , the second liquid inlet pipe 5 is provided with a one-way valve 8 ; in this embodiment, the provision of the one-way valve 8 can prevent the coolant in the expansion tank 3 from flowing backwards when there is a pressure difference to the first liquid inlet pipe 4 and the second liquid inlet pipe 5.

As shown in FIG. 1 , a first liquid level sensor 11 is provided inside the water tank 1 near the bottom side wall, and the first liquid level sensor 11 is electrically connected to the control panel; in this embodiment, when the water tank 1 is cooled When the liquid level drops to the position of the first liquid level sensor 11, the first liquid level sensor 11 transmits a signal to the control panel to remind the user that the cooling liquid storage in the water tank is insufficient.

As shown in FIG. 1 , the top of the water tank 1 is provided with a water injection port 15, and the bottom of the water tank 1 is provided with a water discharge port 16; When the water tank 1 needs to be cleaned and maintained, the water opening 16 can be opened to release the coolant in the water tank 1 .

As shown in FIG. 1 , the expansion tank 3 is provided with an exhaust port 14 ; in this embodiment, the expansion tank 3 can discharge the air released by the cooling liquid during the heating process through the exhaust port 14 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (6)

1. An automatic replenishment device for cooling liquid of a generator set, comprising a control panel, a water tank (1), an electric water pump (2) and an expansion water tank (3), the water tank (1) being close to a water outlet at the bottom and an electric water pump (2) The water inlet of the electric water pump (2) is connected through the first liquid inlet pipe (4), and the water outlet of the electric water pump (2) and the water inlet of the expansion tank (3) are communicated through the second liquid inlet pipe (5), characterized in that: the The inside of the expansion tank (3) is provided with a high level liquid level sensor (9) and a low level liquid level sensor (10) in sequence from top to bottom, the expansion tank (3) is provided with an overflow port, and the overflow port is located at the Above the high-level liquid level sensor (9), the overflow port is communicated with the water inlet of the water tank (1) through the overflow pipe (13), and the water outlet at the bottom of the expansion tank (3) is connected with a liquid outlet pipe ( 6), the liquid outlet pipe (6) is provided with a second liquid level sensor (12), the electric water pump (2), the high liquid level sensor (9), the low liquid level sensor (10) and the second liquid level sensor (10); The position sensors (12) are all electrically connected to the control panel. 2 . The automatic replenishing device for cooling liquid of a generator set according to claim 1 , wherein a filter screen ( 7 ) is arranged in the first liquid inlet pipe ( 4 ). 3 . 3 . The automatic replenishing device for cooling liquid of a generator set according to claim 1 , wherein a check valve ( 8 ) is arranged on the second liquid inlet pipe ( 5 ). 4 . 4. An automatic replenishing device for cooling liquid of a generator set according to claim 1, characterized in that: a first liquid level sensor (11) is arranged inside the water tank (1) near the bottom side wall, and the first liquid level sensor (11) is provided inside the water tank (1). The position sensor (11) is electrically connected to the control panel. 5 . The automatic replenishing device for cooling liquid of a generator set according to claim 4 , wherein a water injection port ( 15 ) is provided on the top of the water tank ( 1 ), and a water injection port ( 15 ) is provided on the bottom of the water tank ( 1 ). 6 . A water outlet (16). 6 . The automatic replenishing device for cooling liquid of a generator set according to claim 1 , wherein the expansion water tank ( 3 ) is provided with an exhaust port ( 14 ). 7 .

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