CN216644600U - Constant temperature water chilling unit - Google Patents
Constant temperature water chilling unit Download PDFInfo
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- CN216644600U CN216644600U CN202123182912.XU CN202123182912U CN216644600U CN 216644600 U CN216644600 U CN 216644600U CN 202123182912 U CN202123182912 U CN 202123182912U CN 216644600 U CN216644600 U CN 216644600U
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- water
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- condenser
- constant temperature
- cooling
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims abstract description 5
- 238000003698 laser cutting Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000003507 refrigerant Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model provides a constant temperature water chilling unit, which comprises: refrigeration module, energy-conserving module, cooling module and controller, the refrigeration module includes: the refrigeration loop consists of a compressor, a condenser, a throttling element, an evaporator and a gas-liquid separator; the energy-saving module includes: a heat recovery heat exchanger and an electronic expansion valve; the cooling module includes: water pump, temperature sensor and water tank. This application is through to establish ties the heat recovery heat exchanger with electronic expansion valve connects in parallel the both ends of condenser utilize the heat recovery heat exchanger retrieves partial or whole condensation heat and releases so that the temperature keeps invariable in the water tank, thereby reduces opening of constant temperature cooling water set stops the number of times, has practiced thrift system's energy consumption, has improved the security and the reliability of constant temperature cooling water set.
Description
Technical Field
The utility model relates to the technical field of high temperature of heat pumps, in particular to a constant-temperature water chilling unit.
Background
When the constant-temperature water chilling unit operates, the refrigerating capacity of the constant-temperature water chilling unit changes due to the influence of the environmental temperature because the environmental temperature is different all the year round, when the refrigerating capacity is larger than the refrigerating capacity, the temperature of the refrigerating water is reduced, and the stable operation of the laser cutting machine is influenced by the excessively low refrigerating water; the existing constant-temperature water chilling unit adopts a mode of single refrigeration and auxiliary electric heating in order to ensure the constancy of the temperature of chilled water, when the temperature of water in a water tank of the constant-temperature water chilling unit is lower than the lower limit of a set value, the auxiliary electric heating is started, and the auxiliary electric heating offsets partial refrigerating capacity, so that the temperature of water in the water tank of the constant-temperature water chilling unit is constant at the set value. The disadvantage of this approach is high energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a constant-temperature water chilling unit to solve the problem that an existing constant-temperature water chilling unit is high in energy consumption.
In order to solve the technical problem, the utility model provides a constant temperature water chilling unit for cooling a laser cutting unit, which comprises: the refrigeration system comprises a refrigeration module, an energy-saving module, a cooling module and a controller, wherein the energy-saving module and the cooling module are respectively connected with the controller; wherein,
the refrigeration module includes: the compressor, the condenser, the throttling element, the evaporator and the gas-liquid separator are sequentially connected end to end;
the energy-saving module includes: the heat recovery heat exchanger and the electronic expansion valve are connected in series, and the heat recovery heat exchanger and the electronic expansion valve which are connected in series are connected in parallel at two ends of the condenser;
the cooling module includes: the water outlet of the water tank is connected with the water pump, the water inlet of the water tank is connected with the laser cutting unit, the temperature sensor is installed between the water pump and the laser cutting unit to form a circulating cooling loop, and the temperature sensor is used for monitoring the water temperature in the circulating cooling loop;
the evaporator and the heat recovery heat exchanger are respectively arranged in the water tank; the evaporator absorbs heat of water in the water tank when working, and the water in the water tank is pumped into the laser cutting unit through the water pump after being cooled; when the temperature sensor monitors that the temperature of water to be pumped into the laser cutting unit is lower than a set threshold value, the controller dynamically adjusts the opening degree of the electronic expansion valve, and releases part or all of condensation heat generated by the condenser into the water tank through the heat recovery heat exchanger so as to keep the water temperature constant.
Optionally, in the constant-temperature water chilling unit, the constant-temperature water chilling unit further includes: and the axial flow fan is arranged on the side of the condenser.
Optionally, in the constant-temperature water chilling unit, the refrigeration module further includes: a filter mounted between the throttling element and the condenser.
Optionally, in the constant-temperature water chilling unit, the cooling module further includes: and the two gate valves are respectively arranged on two sides of the water pump.
Optionally, in the constant-temperature water chilling unit, the cooling module further includes: the water pipe soft joint is arranged on one side of the water pump close to the water tank.
Optionally, in the constant-temperature water chilling unit, the throttling element is an expansion valve.
Optionally, in the constant-temperature water chilling unit, the condenser is a finned condenser.
The technical scheme at least comprises the following advantages:
this application is through to establish ties the heat recovery heat exchanger with electronic expansion valve connects in parallel the both ends of condenser utilize temperature sensor to monitor whether the temperature that will pump into the laser cutting unit is less than the settlement threshold value, then utilize controller dynamic adjustment electronic expansion valve's aperture utilizes at last the heat recovery heat exchanger retrieves partial or whole condensation heat and releases in the water tank so that the temperature keeps invariable, thereby reduces opening of constant temperature cooling water set stops the number of times, has practiced thrift system energy consumption, has improved the security and the reliability of constant temperature cooling water set.
Drawings
FIG. 1 is a schematic structural diagram of a constant-temperature water chilling unit according to an embodiment of the utility model;
wherein the drawings are described as follows:
the method comprises the following steps of 1-a compressor, 2-an axial flow fan, 3-a condenser, 4-an electronic expansion valve, 5-a heat recovery heat exchanger, 6-a filter, 7-a throttling element, 8-an evaporator, 9-a gas-liquid separator, 10-a water tank, 11-a water pipe soft joint, 12-a gate valve, 13-a water pump, 14-a temperature sensor and 15-a laser cutting machine set.
Detailed Description
The cascade heat pump water heater according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
The utility model provides a constant temperature water chilling unit, which is used for cooling a laser cutting unit, and please refer to fig. 1, the constant temperature water chilling unit comprises: the refrigeration system comprises a refrigeration module, an energy-saving module, a cooling module and a controller, wherein the energy-saving module and the cooling module are respectively connected with the controller. Wherein the refrigeration module comprises: compressor 1, condenser 3, throttling element 7, evaporimeter 8 and vapour and liquid separator 7 that end to end in proper order, after end to end the compressor 1 the condenser 3 throttling element 7 evaporimeter 8 with vapour and liquid separator 7 constitutes refrigeration circuit. In this embodiment, the throttling element 7 may be an expansion valve, and the condenser 3 may be a finned condenser.
Further, the energy saving module comprises: the heat recovery heat exchanger 5 and the electronic expansion valve 4 are connected in series, and the heat recovery heat exchanger 5 and the electronic expansion valve 4 which are connected in series are connected in parallel at two ends of the condenser 3.
Further, the cooling module includes: water pump 13, temperature sensor 14 and water tank 10, the delivery port of water tank 10 with water pump 13 links to each other, the water inlet of water tank 10 links to each other with laser cutting unit 15, temperature sensor 14 installs in order to constitute circulation cooling return circuit between water pump 13 and the laser cutting unit 15, temperature sensor 14 is used for the monitoring temperature in the circulation cooling return circuit.
In this embodiment, the evaporator 8 and the heat recovery heat exchanger 5 are respectively disposed in the water tank 10, the evaporator 8 absorbs heat in water when the refrigeration circuit works so as to cool water in the water tank 10, and the heat recovery heat exchanger 5 releases heat to water when the energy saving module works so as to regulate and heat water in the water tank 10; when the evaporator 8 works, the heat of the water in the water tank 10 is absorbed, and the water in the water tank 10 is pumped into the laser cutting unit 15 through the water pump 13 after being cooled; when the temperature sensor 14 monitors that the temperature of the water to be pumped into the laser cutting unit 15 is lower than a set threshold value, the controller dynamically adjusts the opening degree of the electronic expansion valve 4, and releases part or all of the condensation heat generated by the condenser 3 into the water tank 10 through the heat recovery heat exchanger 5 so as to keep the water temperature constant.
Preferably, the constant temperature water chilling unit may further include: the axial flow fan 2 is arranged on the side of the condenser 3, and the axial flow fan 2 can be arranged at an exhaust port of the condenser 3 and used for accelerating the discharge of redundant waste gas of the condenser 3.
Preferably, the refrigeration module may further include: a filter 6, said filter 6 being mounted between said throttling element 7 and said condenser 3. The filter 6 can filter impurity particles such as water molecules and metal oxides in the refrigerant in the pipeline.
Preferably, the cooling module may further include: two gate valves 12 and/or at least one water pipe soft joint 11, wherein the two gate valves 12 are respectively arranged at two sides of the water pump 13, so that the water pump 13 is convenient to disassemble and maintain; when the cooling module is provided with only one water pipe soft joint 11, the water pipe soft joint is arranged on one side of the water pump close to the water tank; when the cooling module has two when the water pipe soft joint 11, two the water pipe soft joint 11 is installed respectively the both sides of water pump 13 can reduce the vibration and the noise in the cooling module working process to can play the compensation to the expend with heat and contract with cold that arouses because of the temperature change.
In this embodiment, the working process of the constant-temperature water chilling unit is approximately: in a refrigeration module (refrigeration circuit), the compressor 1 discharges high-temperature and high-pressure refrigerant gas, the high-temperature and high-pressure refrigerant gas enters the condenser 3 and emits heat in the condenser 3 to be condensed into high-temperature and high-pressure refrigerant liquid, the high-temperature and high-pressure refrigerant liquid enters the filter 6 through a pipeline and is filtered, the high-temperature and high-pressure refrigerant liquid is throttled by the throttling element (expansion valve) 7 and then is converted into low-temperature and low-pressure gas-liquid two-phase mixture (refrigerant), the low-temperature and low-pressure gas-liquid two-phase mixture (refrigerant) enters the evaporator, the refrigerant absorbs the heat of water in the water tank 10 through the surface of the evaporator 8 soaked in water, the refrigerant is gasified into low-temperature and low-pressure gas, the low-temperature and low-pressure gas is separated by the compressor 1 and is sucked by the gas-liquid separator 9, and the refrigerant is discharged through the exhaust pipe after being compressed and enters the next cycle.
The temperature sensor 14 in the cooling module monitors the temperature of water to be pumped into the laser cutting unit 15, when the temperature of the water in the water tank 10 is monitored to be lower than a set threshold value, a temperature signal is fed back to the controller, and the controller controls the electronic expansion valve 4 in the energy-saving module to adjust the opening according to the temperature difference between the temperature of circulating water and the set threshold value; part or all of the high-temperature and high-pressure refrigerant gas discharged by the compressor 1 in the refrigeration module flows into the heat recovery heat exchanger 5 in the energy-saving module; by means of the heat recovery heat exchanger 5, part or all of the condensed heat is released into the water tank 10, so that the temperature of the circulating water in the water tank 10 is kept constant.
In the cooling module (cooling return circuit), the water in the water tank 10 by the water pump 13 inhales, send into laser cutting unit 15 after the pressurization for the laser cutting machine 15 cooling of work, the circulating water absorbs the heat in the laser cutting unit 15 and returns after rising the temperature the water tank 10, the circulating water is in after the water tank 10 heat transfer again by the water pump 13 inhales gets into next circulation.
In summary, in the present application, the heat recovery heat exchanger 5 and the electronic expansion valve 4 connected in series are connected in parallel at two ends of the condenser 3, the temperature sensor 14 is used to monitor whether the temperature of the water to be pumped into the laser cutting unit 15 is lower than a set threshold, then the controller is used to dynamically adjust the opening degree of the electronic expansion valve 4 according to the feedback of the temperature sensor 14, and finally the heat recovery heat exchanger 5 is used to recover part or all of the condensation heat discharged by the compressor 1 and release the condensation heat into the water tank 10 to keep the temperature of the water in the water tank 10 constant, so that the number of start-stop times of the constant temperature water chilling unit is reduced, the system energy consumption is saved, and the safety and reliability of the constant temperature water chilling unit are improved.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (7)
1. The utility model provides a constant temperature cooling water set for laser cutting unit cooling, its characterized in that includes: the refrigeration system comprises a refrigeration module, an energy-saving module, a cooling module and a controller, wherein the energy-saving module and the cooling module are respectively connected with the controller; wherein,
the refrigeration module includes: the compressor, the condenser, the throttling element, the evaporator and the gas-liquid separator are sequentially connected end to end;
the energy-saving module includes: the heat recovery heat exchanger and the electronic expansion valve are connected in series, and the heat recovery heat exchanger and the electronic expansion valve which are connected in series are connected in parallel at two ends of the condenser;
the cooling module includes: the water outlet of the water tank is connected with the water pump, the water inlet of the water tank is connected with the laser cutting unit, the temperature sensor is installed between the water pump and the laser cutting unit to form a circulating cooling loop, and the temperature sensor is used for monitoring the water temperature in the circulating cooling loop;
the evaporator and the heat recovery heat exchanger are respectively arranged in the water tank; the water in the water tank is cooled and then pumped into a laser cutting unit through the water pump; when the temperature sensor monitors that the temperature of water to be pumped into the laser cutting unit is lower than a set threshold value, the controller dynamically adjusts the opening degree of the electronic expansion valve, and releases part or all of condensation heat generated by the condenser into the water tank through the heat recovery heat exchanger so as to keep the water temperature constant.
2. The constant temperature water chilling unit according to claim 1, further comprising: and the axial flow fan is arranged on the side of the condenser.
3. The constant temperature water chilling unit of claim 1, wherein the refrigeration module further comprises: a filter mounted between the throttling element and the condenser.
4. The constant temperature water chilling unit of claim 1, wherein the cooling module further comprises: and the two gate valves are respectively arranged on two sides of the water pump.
5. The constant temperature water chilling unit of claim 1, wherein the cooling module further comprises: the water pipe soft joint is arranged on one side of the water pump close to the water tank.
6. The thermostatic chiller according to claim 1, wherein the throttling element is an expansion valve.
7. The constant temperature water chilling unit according to claim 1, wherein the condenser is a finned condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123182912.XU CN216644600U (en) | 2021-12-17 | 2021-12-17 | Constant temperature water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123182912.XU CN216644600U (en) | 2021-12-17 | 2021-12-17 | Constant temperature water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216644600U true CN216644600U (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123182912.XU Active CN216644600U (en) | 2021-12-17 | 2021-12-17 | Constant temperature water chilling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200242A (en) * | 2022-08-08 | 2022-10-18 | 上海燃气工程设计研究有限公司 | Constant-temperature water chilling unit |
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2021
- 2021-12-17 CN CN202123182912.XU patent/CN216644600U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200242A (en) * | 2022-08-08 | 2022-10-18 | 上海燃气工程设计研究有限公司 | Constant-temperature water chilling unit |
| WO2024032116A1 (en) * | 2022-08-08 | 2024-02-15 | 上海能源建设工程设计研究有限公司 | Constant-temperature water chilling unit |
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