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CN-114526523-B - Local environment heat sink

CN114526523BCN 114526523 BCN114526523 BCN 114526523BCN-114526523-B

Abstract

The invention relates to a local environment cooling device which consists of a semiconductor refrigerating system, an atomizing device, a water supplementing system, a dehumidifying system and a sensing and controlling system. The device works, the refrigeration mode adopts semiconductor refrigeration and water mist evaporation to absorb heat, the two modes alternately act to complete local environment cooling, atomization treatment and floating ball water supplementing are carried out to complete a dynamic water circulation process, a dehumidification system, a water supplementing system and an atomization sheet are matched to complete water consumption and supplement in a cooling tank, a cold end radiator and a hot end radiator are specially designed in structure, and a multi-sensor and a control system are controlled in a coordinated mode. The device can complete the cooling process of local environment in a small range.

Inventors

  • ZHOU XIAOLIANG
  • Hou Yanzuo
  • ZENG XIANGSHENG
  • PENG YONGQI

Assignees

  • 北京交通大学

Dates

Publication Date
20260505
Application Date
20220125

Claims (9)

  1. 1. A local environment cooling device, which is characterized by comprising a semiconductor refrigerating system, an atomizing device, a water supplementing system, a dehumidifying system and a sensing and controlling system, wherein: The semiconductor refrigerating system comprises a plurality of semiconductor refrigerating sheets, radiators at the upper end and the lower end, a cooling water tank and a fan; The atomizing device is composed of an ultrasonic atomizing sheet; the water replenishing system comprises a ball float valve in a cooling water tank, a joint, a pipeline and a water replenishing water tank; The dehumidification system comprises a dehumidifier and a pipeline communicated with the water replenishing water tank; The sensing and control system consists of a temperature sensor in the radiating water tank, a liquid flow sensor in the water supplementing pipeline, a humidity sensor, a control terminal of a PLC or a singlechip, a display panel, a power supply and a switch key; the cold end radiator of the refrigerating fin is a needle-type radiating fin, and the height of the radiating fin is higher than that of the radiator at the hot end, and the fan is equivalent in size; When the cooling device works, the cooling fins are started, the fan blows cool air around the cold end needle type cooling fins of the cooling fins to the periphery, the hot end radiator of the cooling fins is cooled through the cooling water tank, after the temperature of the cooling water rises, the cooling fins stop working, the atomizer is started, the fan blows water mist to the periphery to cool in a water vapor evaporation mode, after the water level in the cooling water tank drops, the ball float valve automatically supplements water to the cooling water tank, the cooling fins are continuously started after the water supplement is completed, in this way, the cooling fins and the atomizing fins alternately work for refrigeration, the cooling water tank continuously consumes and automatically supplements water, and the device can continuously work for a long time.
  2. 2. The local environment cooling device according to claim 1, wherein the fan can swing or move along a certain track, so that not only can cool air generated by the cold end radiator of the refrigerating sheet be blown away, but also water mist generated by the atomizing sheet can be blown away, and evaporation and heat absorption of the water mist are quickened.
  3. 3. The local environment cooling device according to claim 1, wherein the circulation of the cooling water in the cooling water tank is completed by means of water mist atomization consumption and floating ball water replenishing.
  4. 4. The local environment cooling device according to claim 1, wherein the consumption and the replenishment of the cooling water in the cooling water tank are completed by the cooperation of a dehumidification system, an atomization sheet and a water replenishing system.
  5. 5. The local environment cooling device of claim 1, wherein the sensing and control system comprises a humidity sensor for monitoring the ambient humidity, wherein the ambient humidity exceeds a threshold value, a dehumidifier is started, a temperature sensor for monitoring the temperature of cooling water in the cooling water tank, wherein the temperature exceeds the threshold value, a power supply of the semiconductor refrigerating sheet is disconnected, an atomizing sheet is started to atomize the cooling water, and a liquid flow sensor for flowing liquid is used for closing the atomizing sheet, and the refrigerating sheet is started after water supplementing is stopped.
  6. 6. The local environment cooling device according to claim 1, wherein the dehumidifier is connected to the water replenishment storage tank of the water replenishment system via a pipeline, and when the ambient humidity is too high, the dehumidifier is started and the collected water is returned to the water replenishment tank.
  7. 7. The apparatus according to claim 1, wherein the ball float valve of the water replenishing system is disposed at the edge of the cooling water tank, and is connected to the water replenishing tank via a joint and a pipeline, and when the atomization is consumed, the liquid level in the cooling water tank drops to a certain height, and the ball float valve automatically replenishes water from the water replenishing tank to the cooling water tank.
  8. 8. The local environment cooling device of claim 1, wherein the heat sinks at both ends of the cooling fin are large in footprint compared to the heat sinks at the cold end.
  9. 9. The local environment cooling device according to claim 1, wherein the semiconductor refrigerating system comprises a plurality of refrigerating sheets connected in parallel/in series to increase refrigerating capacity.

Description

Local environment heat sink Technical Field The invention relates to the field of refrigeration and cooling, in particular to an indoor local environment cooling device. Background In hot summer, a good working and living environment is ensured, and some cooling devices are needed. There are many ways and methods of cooling, such as compression refrigeration, liquid vaporization and heat absorption, semiconductor refrigeration, substance phase change and heat absorption, magnetic refrigeration, etc. The most commonly used of these are compression refrigeration, i.e. an air conditioner which applies this principle, and generally consists of four major parts, namely a compressor, a condenser, an evaporator and an expansion valve (also called throttling element). Although the efficiency is high, the structure is relatively complex, the movement is not easy, meanwhile, the refrigerant is polluted, and the refrigerant is in an air conditioning environment for a long time and is easy to suffer from air conditioning diseases. Semiconductor refrigeration is also known as thermoelectric refrigeration, or electronic refrigeration. The Peltier effect is mainly used, namely, two different metals or semiconductors form a loop, and after the power is on, the loop absorbs heat at two contact ends, one end absorbs heat and the other end releases heat. The semiconductor refrigeration directly converts electric energy into heat energy without a compressor, does not use a refrigerant, does not have mechanical parts such as a compressor and the like compared with a common compression refrigeration device, has no vibration, small noise, more stable working state, no refrigerant used in the working process, environment friendliness and environment friendliness, and the working part is mainly a refrigeration piece. By changing the direction and the magnitude of the current, the states such as refrigeration or heating can be changed, the magnitude of the refrigerating capacity can be adjusted, the adjustment and the control are easy, the response speed is high, and the safety is good. However, the semiconductor refrigeration has the defects of smaller refrigeration coefficient, relatively larger power consumption, being only used in a local closed environment, and the like. Semiconductor refrigeration is well suited for local and small space refrigeration. At present, the water dispenser is applied to military fields, submarines, electronic communication vehicles and the like, medical fields, refrigeration boxes, thermostats and the like, daily application of water dispensers, small refrigerators and the like. In addition, the heat-dissipating device has important application in the fields of precision electronic instruments, heat dissipation of power electronic elements, low-power local refrigeration devices and the like. The evaporation of water absorbs heat, and the evaporation of water can also take away heat, which is one of the common refrigeration principles. When water is sprayed on the ground or after rain is applied in summer, the user can feel cool. When heating, the body is coated by the hot towel, so that the body surface temperature can be reduced. The evaporation of water absorbs heat and is also used to make some refrigeration devices. Disclosure of Invention The invention provides an indoor local environment cooling device which can alternately act through two modes of refrigeration of a semiconductor refrigeration sheet and evaporation and heat absorption of water so as to achieve the effect of reducing indoor local temperature. According to an aspect of the present invention, there is provided an indoor local environment cooling device, the device comprising a semiconductor refrigeration system, an atomizing device, a water replenishment system, a dehumidification system, and a sensing and control system, wherein: The semiconductor refrigerating system comprises a plurality of semiconductor refrigerating sheets, radiators at the upper end and the lower end, a cooling water tank and a fan; The atomizing device is composed of an ultrasonic atomizing sheet; the water replenishing system comprises a ball float valve in a cooling water tank, a joint, a pipeline and a water replenishing water tank; The dehumidification system comprises a dehumidifier and a pipeline communicated with the water replenishing water tank; The sensing and control system consists of a temperature sensor in the radiating water tank, a liquid flow sensor in the water supplementing pipeline, a humidity sensor, a control terminal of a PLC or a singlechip, a power supply, a display panel and switch keys. Preferably, the cooling device is refrigerated by the semiconductor refrigerating sheet, cold air is blown out by the fan, the atomizing sheet is atomized, the water mist is evaporated to absorb heat, and the two refrigeration modes alternately act to complete the refrigeration process so as to achieve the effect of reducing the ambient temperatu