CN220728682U - Cooling water system with pressurizing and liquid adding water tank - Google Patents
Cooling water system with pressurizing and liquid adding water tank Download PDFInfo
- Publication number
- CN220728682U CN220728682U CN202322444895.5U CN202322444895U CN220728682U CN 220728682 U CN220728682 U CN 220728682U CN 202322444895 U CN202322444895 U CN 202322444895U CN 220728682 U CN220728682 U CN 220728682U
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- water tank
- liquid adding
- liquid
- adding water
- pressurized
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000007788 liquid Substances 0.000 title claims abstract description 77
- 239000000498 cooling water Substances 0.000 title claims abstract description 23
- 238000005485 electric heating Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
The utility model relates to a cooling water system with a pressurized liquid adding water tank, which comprises: a condenser for system cooling; a compressor connected to the condenser; an electric heating device; the plate heat exchanger, the condenser and the electric heating equipment exchange heat in the plate heat exchanger; the water pump is used for supplying water to the electric heating equipment; an automatic exhaust valve is arranged on a pipeline connected between the electric heating equipment and the plate heat exchanger; the water inlet end of the water pump is provided with a liquid adding water tank, the exhaust port of the automatic exhaust valve is connected to the air inlet end of the liquid adding water tank, and the liquid adding water tank is internally provided with a refrigerating medium. The utility model relates to a cooling water system with a pressurizing liquid adding water tank, wherein an exhaust port of an automatic exhaust valve is connected to a through pipe of the liquid adding water tank: the gas generated in the running process of the system enters the liquid adding water tank and is not directly discharged, the pressure of the liquid adding water tank can be maintained, the simultaneous maintenance of the constant pressure expansion tank and the liquid adding water tank is avoided, the cost is high, and the large space is occupied.
Description
Technical Field
The utility model relates to the technical field of cooling systems, in particular to a cooling water system with a pressurized liquid adding water tank.
Background
A cooling water system is a system for controlling the temperature of a machine or equipment, and is generally used in the industrial and construction fields. Its primary function is to remove heat from the machine or equipment to maintain its normal operating temperature. The cooling water system consists of many different components including pumps, cooling towers, heat exchangers, pipes and valves. Water pumps are key components in delivering water from a cooling tower to equipment that requires cooling. Different types of water pumps, such as centrifugal pumps, axial pumps, deep well pumps, etc., may be selected according to different application requirements.
In order to prevent cavitation of the circulating water pump, a constant-pressure expansion tank or a liquid adding water tank is generally arranged on the water return side of the water pump. As shown in fig. 3, the water system with the constant pressure expansion tank 10 can well avoid cavitation of the water pump, but the liquid adding is difficult, and a liquid adding system is required to be additionally arranged. If the water system is provided with the liquid adding water tank, the liquid adding is convenient, and the liquid adding water tank can also act as an expansion tank. However, the water pump has a requirement on the minimum height of the water tank, and the minimum water level required by the water return side of most water pumps is more than 0.5 m. This requirement is generally met for a vertical chiller, but is difficult to meet for a horizontal chiller. In order to simultaneously meet the requirements of convenient liquid adding and prevention of cavitation of a water pump, the constant-pressure expansion tank and a liquid adding water tank are designed into the system. Therefore, the cost is increased, more importantly, the space for capturing the elbow is occupied, and the design of the design unit becomes difficult and messy.
Therefore, there is a need to solve this problem by designing a tank and rational system that can be filled and pressurized.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to solve the problems that in the prior art, in order to prevent cavitation of the circulating water pump, certain water pressure is generally required to be ensured on the water return side of the water pump, but when a liquid adding water tank is used, the minimum required water pressure is generally difficult to ensure on the horizontal water chilling unit.
In order to solve the technical problems, the utility model provides a cooling water system with a pressurizing and liquid adding water tank, which comprises: a condenser for system cooling; a compressor connected to the condenser; an electric heating device; the condenser and the electric heating equipment exchange heat and cold in the plate heat exchanger; a water pump connected to the electric heating apparatus, and for water supply to the electric heating apparatus; an automatic exhaust valve is arranged on a pipeline connected between the electric heating equipment and the plate heat exchanger; the water inlet end of the water pump is provided with a liquid adding water tank, the exhaust port of the automatic exhaust valve is connected to the air inlet end of the liquid adding water tank, and the liquid adding water tank is internally provided with a refrigerating medium.
In one embodiment of the utility model, the liquid feeding water tank is provided with a liquid inlet, a safety cover is covered on the liquid inlet, and when the pressure in the liquid feeding water tank is higher than the pressure of the safety cover, the safety cover is opened to discharge the gas in the liquid feeding water tank.
In one embodiment of the utility model, a through pipe is arranged on the liquid adding water tank, and an exhaust port of the automatic exhaust valve is connected to the through pipe.
In one embodiment of the utility model, the liquid adding water tank is provided with a standard air charging port, and the standard air charging port is used for charging air into the liquid adding water tank.
In one embodiment of the utility model, the condenser is a fan, and a first pressure sensor and a first temperature sensor are arranged between the compressor and the condenser.
In one embodiment of the utility model, a second pressure sensor and a second temperature sensor are arranged between the compressor and the plate heat exchanger.
In one embodiment of the utility model, an electronic expansion valve is arranged between the condenser and the plate heat exchanger.
In one embodiment of the utility model, a third pressure sensor and a third temperature sensor are arranged on the liquid supply side pipe of the plate heat exchanger.
In one embodiment of the utility model, an on-off valve is arranged on the liquid injection side pipeline of the water pump.
In one embodiment of the utility model, a fourth pressure sensor and a fourth temperature sensor are arranged on a liquid return side pipeline of the water pump.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the utility model relates to a cooling water system with a pressurized liquid adding water tank, wherein an exhaust port of an automatic exhaust valve is connected to a through pipe of the liquid adding water tank: the gas generated in the running process of the system enters the liquid adding water tank and is not directly discharged, the pressure of the liquid adding water tank can be maintained, the simultaneous maintenance of the constant pressure expansion tank and the liquid adding water tank is avoided, the cost is high, and the large space is occupied.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic diagram of a cooling water system having a pressurized charge water tank of the present utility model;
FIG. 2 is a schematic view of the structure of the filling tank of the present utility model;
fig. 3 is a schematic diagram of a prior art cooling water system of the present utility model.
Description of the specification reference numerals: the condenser 1, the first pressure sensor 11, the first temperature sensor 12, the electronic expansion valve 13, the compressor 2, the second pressure sensor 21, the second temperature sensor 22, the electric heating device 3, the plate heat exchanger 4, the third pressure sensor 41, the third temperature sensor 42, the water pump 5, the switch valve 51, the fourth pressure sensor 52, the fourth temperature sensor 53, the automatic exhaust valve 6, the liquid adding water tank 7, the liquid inlet 71, the safety cover 72, the through pipe 73, the standard inflation inlet 74 and the constant pressure expansion tank 10.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1, the cooling water system with the pressurized-charged water tank of the present utility model includes: the cooling medium end comprises a condenser 1 and a compressor 2, the water system end comprises a water pump 5 and a liquid adding water tank 7, and an electric heating device 3 is added at the water system end, for example, in a battery cooling system, in winter, the electric heating device 3 is started in order to increase the service temperature of a battery due to lower temperature, and at the moment, the cooling medium end does not work, and the heating effect is realized through the electric heating device 3; a condenser 1 for system cooling; a compressor 2 connected to the condenser 1; a plate heat exchanger 4, wherein the condenser 1 and the electric heating device 3 exchange heat and cold in the plate heat exchanger 4; a water pump 5 connected to the electric heating device 3, and the water pump 5 is used for water supply of the electric heating device 3; an automatic exhaust valve 6 is arranged on a pipeline connected between the electric heating equipment 3 and the plate heat exchanger 4; the water inlet end of the water pump 5 is provided with a liquid adding water tank 7, the air outlet of the automatic air outlet valve 6 is connected to the air inlet end of the liquid adding water tank 7, and the liquid adding water tank 7 is internally provided with a secondary refrigerant.
Referring to fig. 2, the liquid feeding tank 7 is provided with a liquid inlet 71, the liquid inlet 71 is covered with a safety cover 72, and when the pressure in the liquid feeding tank 7 is greater than the pressure in the safety cover 72, the safety cover 72 is opened to discharge the gas in the liquid feeding tank 7. The liquid adding water tank 7 is provided with a through pipe 73, and the exhaust port of the automatic exhaust valve 6 is connected to the through pipe 73. The charging water tank 7 is provided with a standard charging port 74, and the standard charging port 74 is used for charging air into the charging water tank 7.
In the above structure, the condenser 1 is a fan, and a first pressure sensor 11 and a first temperature sensor 12 are disposed between the compressor 2 and the condenser 1. A second pressure sensor 21 and a second temperature sensor 22 are arranged between the compressor 2 and the plate heat exchanger 4. An electronic expansion valve 13 is arranged between the condenser 1 and the plate heat exchanger 4. The liquid supply side piping of the plate heat exchanger 4 is provided with a third pressure sensor 41 and a third temperature sensor 42. The liquid injection side pipeline of the water pump 5 is provided with an on-off valve 51. A fourth pressure sensor 52 and a fourth temperature sensor 53 are arranged on the liquid return side pipeline of the water pump 5.
The working principle of the cooling water system with the pressurizing and liquid adding water tank is as follows:
after the client is equipped with the unit, the cover of the liquid adding water tank 7 is opened, and the secondary refrigerant is injected. When the liquid level in the filling water tank 7 is no longer falling, the water pump 5 can be turned on to continue filling until the system is running steadily, after which the liquid level in the filling water tank 7 is stabilized at a suitable level, say half of the filling water tank 7, and the lid of the filling water tank 7 is closed and screwed. The pump is used to inflate from the standard inflation port 74 of the charge tank 7 until the hydraulic pressure sensor has reached a value of 50kpa (the pressure value can be modified). The system can then run normally and stably. The gas generated during the operation of the system is discharged into the filling water tank 7 through the automatic exhaust valve 6, which may cause an increase in the pressure in the filling water tank 7. When the pressure is increased to the opening pressure of the safety cover 72, a certain amount of gas is discharged to the outside and then closed. Through the design, the horizontal water chilling unit can be conveniently filled with liquid and the water pump can safely run by only using one liquid filling water tank.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A cooling water system having a pressurized liquid-filled tank, comprising:
a condenser for system cooling;
a compressor connected to the condenser;
an electric heating device;
the condenser and the electric heating equipment exchange heat and cold in the plate heat exchanger;
a water pump connected to the electric heating apparatus, and for water supply to the electric heating apparatus;
an automatic exhaust valve is arranged on a pipeline connected between the electric heating equipment and the plate heat exchanger;
the water inlet end of the water pump is provided with a liquid adding water tank, the exhaust port of the automatic exhaust valve is connected to the air inlet end of the liquid adding water tank, and the liquid adding water tank is internally provided with a refrigerating medium.
2. The cooling water system with pressurized-charged water tank of claim 1 wherein: the liquid feeding water tank is provided with a liquid inlet, a safety cover is covered on the liquid inlet, and when the pressure in the liquid feeding water tank is greater than the pressure of the safety cover, the safety cover is opened to discharge the gas in the liquid feeding water tank.
3. The cooling water system with pressurized-charged water tank of claim 2, wherein: the liquid adding water tank is provided with a through pipe, and an exhaust port of the automatic exhaust valve is connected to the through pipe.
4. A cooling water system with a pressurized-charged water tank as defined in claim 3, wherein: the liquid adding water tank is provided with an inflation inlet which is used for inflating the liquid adding water tank.
5. The cooling water system with pressurized-charged water tank of claim 1 wherein: the condenser is a fan, and a first pressure sensor and a first temperature sensor are arranged between the compressor and the condenser.
6. The cooling water system with pressurized-charged water tank of claim 1 wherein: and a second pressure sensor and a second temperature sensor are arranged between the compressor and the plate heat exchanger.
7. The cooling water system with pressurized-charged water tank of claim 1 wherein: an electronic expansion valve is arranged between the condenser and the plate heat exchanger.
8. The cooling water system with pressurized-charged water tank of claim 1 wherein: and a third pressure sensor and a third temperature sensor are arranged on the liquid supply side pipeline of the plate heat exchanger.
9. The cooling water system with pressurized-charged water tank of claim 1 wherein: and a switch valve is arranged on the liquid injection side pipeline of the water pump.
10. The cooling water system with pressurized-charged water tank of claim 1 wherein: and a fourth pressure sensor and a fourth temperature sensor are arranged on the liquid return side pipeline of the water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322444895.5U CN220728682U (en) | 2023-09-08 | 2023-09-08 | Cooling water system with pressurizing and liquid adding water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322444895.5U CN220728682U (en) | 2023-09-08 | 2023-09-08 | Cooling water system with pressurizing and liquid adding water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220728682U true CN220728682U (en) | 2024-04-05 |
Family
ID=90488357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322444895.5U Active CN220728682U (en) | 2023-09-08 | 2023-09-08 | Cooling water system with pressurizing and liquid adding water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220728682U (en) |
-
2023
- 2023-09-08 CN CN202322444895.5U patent/CN220728682U/en active Active
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