CN216694160U - Self-adjusting power-saving heating temperature control device - Google Patents
Self-adjusting power-saving heating temperature control device Download PDFInfo
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- CN216694160U CN216694160U CN202122886947.5U CN202122886947U CN216694160U CN 216694160 U CN216694160 U CN 216694160U CN 202122886947 U CN202122886947 U CN 202122886947U CN 216694160 U CN216694160 U CN 216694160U
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- water tank
- control device
- electric heating
- temperature sensor
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Abstract
The utility model discloses a self-regulating electricity-saving heating temperature control device which comprises a water tank, an electric heating unit, a water pump, a water tank temperature sensor, a liquid supply temperature sensor, an electric control device, an evaporator, a heat load, a cold making side unit, a water inlet and outlet pipeline, a cable assembly and the like. The water tank is provided with an electric heating group and a water tank temperature sensor. The water pump is connected between the water tank and the refrigeration side evaporator. The electric control device is connected with the electric heating unit in the water tank, the water pump, the water tank temperature sensor, the liquid supply temperature sensor and the refrigerating side unit through the cable assembly. The liquid supply temperature sensor is arranged on a liquid supply pipeline behind the evaporator. The utility model collects fault information such as water tank temperature, liquid supply temperature, electric heating overheat protection and the like, implements logic control on the water pump, the electric heating unit and the refrigerating side unit, and ensures that the liquid cooling device can operate reliably and orderly under the low-temperature working condition, the heating working condition and the temperature heat balance working condition.
Description
Technical Field
The utility model relates to the technical field of temperature control of liquid cooling devices, in particular to a self-adjusting power-saving heating temperature control device.
Background
The main purpose of the liquid cooling machine is to provide a circulating coolant, i.e. cooling liquid, with certain temperature, flow and pressure requirements for the cooled object (high-power radar, laser). The flow and the pressure of the cooling liquid are adjusted through water pump model selection and a manual valve, the realization is easy, and the change of pipeline resistance and the like can not occur after the connection of the liquid supply and return pipelines is finished, so that the repeated adjustment is not needed after the adjustment of the flow and the pressure is finished, but the temperature can be adjusted at any time according to the change of a system.
The liquid cooling machine liquid supply temperature is not high in adjustment accuracy at the earliest, the cold quantity is adjusted mainly by starting and stopping the compressor, the temperature adjustment has hysteresis, the compressor is started after being stopped, the temperature fluctuation range is large, the requirement of the power radar, particularly the precision laser for liquid supply with high temperature accuracy cannot be met, and meanwhile, the compressor is frequently started and stopped, and the service life of the compressor is not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims to make up for the defects of the prior art and provides a self-regulating electricity-saving heating temperature control device.
The utility model is realized by the following technical scheme:
the utility model provides a self-modulation economize on electricity heating temperature control device, including water tank, electric heating group, water pump, water tank temperature sensor, confession liquid temperature sensor, electric control unit, refrigeration side evaporimeter, heat load and system cold side unit, electric heating group and water tank temperature sensor all install inside the water tank, the exit linkage water pump import of water tank, the water pipe import of water pump exit linkage system cold side evaporimeter, the water pipe exit linkage heat load import of refrigeration side evaporimeter, the import of heat load exit linkage water tank, confession liquid temperature sensor install on the water pipe outlet pipe of system cold side evaporimeter, the both ends of refrigeration side unit connect respectively on the refrigerant import and export of system cold side evaporimeter, electric heating group, water tank temperature sensor, water pump, system cold side unit and confession liquid temperature sensor all be connected with electric control unit.
The electric heating group is provided with an overheating protection device, and can send alarm information when the water temperature is too high or the water is short of water and the water is burnt dry.
The electric heating unit is a resistive load and can be frequently switched on and off through a non-contact switch and a solid-state relay, so that the stepless adjustable power is realized.
The electric control device collects fault information such as water tank temperature, liquid supply temperature, electric heating overheat protection and the like, and implements logic control on the water pump, the electric heating unit and the refrigerating side unit, so that the water outlet temperature range of the device is controllable.
The electric control device can implement on-off control on the refrigerating side unit, the compressor can be started again after being closed for three minutes due to the self attribute of the compressor, the liquid supply temperature precision cannot be guaranteed, and the compressor can continuously run after being started except for a fault or shutdown command in order to avoid liquid supply temperature fluctuation caused by starting of the compressor.
The heating power of the heat load is not constant, and the maximum heating power is less than or equal to the refrigeration power of the refrigeration side.
When the temperature of the water tank is lower than-10 ℃, the electric control device outputs a signal, the electric heating group is put into operation at full power to heat the temperature of the water tank to 0 ℃, the viscosity of the secondary refrigerant is reduced, and conditions are created for low-temperature starting of the water pump; when the temperature of the water tank is higher than 0 ℃, the electric control device controls the water pump to start, simultaneously monitors the liquid supply temperature, and if the liquid supply temperature is lower than the set liquid supply temperature, the electric heating full power is put into operation until the liquid supply temperature rises to the set liquid supply temperature, and the electric heating full power stops working; when the liquid supply temperature is more than or equal to the liquid supply temperature set value, the electric control device outputs a refrigeration signal, the refrigeration side compressor starts refrigeration, and meanwhile, the electric control device sends a ready signal, so that a heat load can be put into operation; after the load is put into operation, the compressor continuously operates, if the load power fluctuates at the stage, the electric control device outputs a PID (proportion integration differentiation) adjusting signal, the solid-state relay cycle control module receives the signal and adjusts the on-off frequency of the solid-state relay, and the electric heating unit puts power as required to balance the redundant cold energy of the compressor.
When the utility model works, the electric heating group mainly plays three roles:
1. low-temperature preheating: generally, the working temperature of a military liquid cooling device is-40-55 ℃, a secondary refrigerant is an ethylene glycol aqueous solution, the lower the temperature is, the higher the viscosity of the ethylene glycol aqueous solution is, the higher the starting and running requirements on a water pump are, in order to improve the reliability of a system and ensure the normal running of the water pump, under the condition of low temperature, firstly, electric heating is started to heat the temperature of a water tank to a certain temperature value, and then, the water pump is started to carry out waterway circulation;
2. heating: when the liquid supply temperature is above the starting limit value of the water pump and below the set liquid supply temperature value, the electric heating group is put into full power to heat the water to the required value;
3. heat balance: and when the refrigerating capacity of the refrigerating side is equal to the heating capacity of the load, the electric heating group is not put into operation. When the cold quantity of the refrigerating side is larger than the heat quantity of the load, the electric heating group adjusts the required input power through the electric control device.
The utility model has the advantages that:
1. the utility model provides favorable conditions for low-temperature starting of the water pump.
2. The utility model avoids the temperature control of the refrigeration side compressor during starting and stopping, and adopts the resistive load electric heating group to regulate the temperature control. The resistive load adjusting technology is easy to realize, low in cost and capable of guaranteeing the service life of equipment.
3. The electric heating unit can be adjusted in an electrodeless way and adopts an intelligent PID control method, so that the quick response and high precision of the liquid supply temperature are ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a self-adjusting power-saving heating temperature control device comprises an electric heating group 1, a water tank 2, a water tank temperature sensor 3, an electric control device 4, a thermal load 5, a liquid supply temperature sensor 6, a cable assembly 7, a refrigeration side evaporator 8, a water pump 9, a water pipeline assembly 10 and a refrigeration side unit 11.
The electric heating group 1 and the water tank temperature sensor 3 are installed in the water tank 2, and the electric heating group is provided with overheat protection.
The water tank 2, the water pump 9, the refrigeration side evaporator 8, and the heat load 5 are connected by a water pipe assembly 10. The liquid supply temperature sensor 6 is arranged on a water pipeline at the outlet of the refrigeration side evaporator 8. The cold-making side unit 11 is connected to the refrigerant inlet and outlet of the cold-making side evaporator 8.
The electric control device 4 is connected with the liquid supply temperature sensor 6, the water tank temperature sensor 3, the electric heating unit 1, the cold side making unit 11 and the water pump 9 through the cable assembly 7. The electric control device 4 consists of a low-voltage apparatus, a solid-state relay, a cycle control module and a program controller.
Before each work, the utility model firstly needs to complete the connection of the water pipeline at the side of the heat load 5, then the temperature control device is electrified to carry out self-checking failure, and finally the liquid supply temperature is set in the electric control device part and the temperature control device is started. The temperature control device operates according to a preset program according to the temperature of the water tank, the temperature of the liquid supply and the set value of the temperature of the liquid supply, provides cooling liquid with proper temperature for the heat load, and ensures the normal work requirement of the heat load.
Claims (4)
1. A self-adjusting power-saving heating temperature control device is characterized in that: the water tank, the electric heating group and the water tank temperature sensor are all installed inside the water tank, an outlet of the water tank is connected with a water pump inlet, a water pump outlet is connected with a water pipe inlet of the cold side evaporator, a water pipe outlet of the refrigeration side evaporator is connected with a heat load inlet, a heat load outlet is connected with an inlet of the water tank, the liquid supply temperature sensor is installed on a water pipe outlet pipe of the cold side evaporator, two ends of the refrigeration side unit are respectively connected to a refrigerant inlet and a refrigerant outlet of the cold side evaporator, and the electric heating group, the water tank temperature sensor, the water pump, the cold side unit and the liquid supply temperature sensor are all connected with the electric control device.
2. The self-regulating electric heating temperature control device according to claim 1, characterized in that: the electrical heating bank has an overheat protection device.
3. The self-regulating electric heating temperature control device according to claim 1, characterized in that: the electric heating group is a resistive load.
4. The self-regulating electric heating temperature control device according to claim 1, characterized in that: and the electric control device is used for carrying out on-off control on the refrigerating side unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886947.5U CN216694160U (en) | 2021-11-19 | 2021-11-19 | Self-adjusting power-saving heating temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886947.5U CN216694160U (en) | 2021-11-19 | 2021-11-19 | Self-adjusting power-saving heating temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216694160U true CN216694160U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122886947.5U Active CN216694160U (en) | 2021-11-19 | 2021-11-19 | Self-adjusting power-saving heating temperature control device |
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| CN (1) | CN216694160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136045A (en) * | 2021-11-19 | 2022-03-04 | 合肥天鹅制冷科技有限公司 | Self-adjusting power-saving heating temperature control device |
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2021
- 2021-11-19 CN CN202122886947.5U patent/CN216694160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136045A (en) * | 2021-11-19 | 2022-03-04 | 合肥天鹅制冷科技有限公司 | Self-adjusting power-saving heating temperature control device |
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