CN2447676Y

CN2447676Y - Thermostatic dehumidifier

Info

Publication number: CN2447676Y
Application number: CN 00253866
Authority: CN
Inventors: 高英发
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-09
Filing date: 2000-10-09
Publication date: 2001-09-12
Anticipated expiration: 2010-10-09

Abstract

The utility model relates to a thermostatic dehumidifier, which comprises a controller, a compressor, a heat radiator, an expansion valve, an evaporator, a reheating coil pipe and a temperature sensor, wherein, the heat radiator is arranged out of a machine body; the compressor, the heat radiator, the reheating coil pipe, the expansion valve and the evaporator are orderly connected to form a circulation loop for refrigerant; the heating radiator comprises a radiator fan for regulating the temperature of the reheating coil pipe and a temperature returning heat radiator for preventing the refrigerant from undercooling; the radiator fan is connected with the controller used for controlling the rotational speed of the radiator fan; the temperature returning heat radiator is positioned out of the machine body and is connected between the reheating coil pipe and the expansion valve. The device can simultaneously realize the purposes of constant temperature and dehumidification, can reduce the cost, and can decrease system failure.

Description

But the dehydrating unit of constant temperature

The utility model relates to a kind of dehydrating unit, but a kind of dehydrating unit of constant temperature particularly, and it mainly is to set up a heat abstractor and thermostat in air handling system.

In the control system of constant temperature dehumidification of the present utility model, and be different from general air-conditioning system, only according on the temperature, the running of lower limit control air-conditioning system, because generally indoor, people only experience the variation of room temperature, utilize the air supply velocity of air-conditioning system running to adjust room temperature, it only is easy air-conditioning system, if the article that leave in the confined chamber are medicine, agricultural product or when being provided with some precision instrument, just must in the space, keep specific temperature and low humidity, the ability normal storage, precision instrument just can not cause inaccurate or fault because of humidity is too high.As shown in Figure 1, but it is the schematic diagram of the dehydrating unit of existing power conservation type constant temperature, it is to cooperate with air-conditioning system, after compressor 1 is with refrigerant boil down to high pressure-temperature gas, enter radiator 2 and begin heat radiation, make refrigerant become the liquid state of high normal pressure and temperature, after expansion valve 3 or capillary decompression, disengage low temperature through evaporimeter 4 again, mode circulates according to this, when air enters in the system, lowered the temperature through evaporimeter 4 earlier, behind radiator 2, sent again by air blast 5, in airtight space, carry out air circulation, make temperature and humidity in this space reach predetermined target.With the constant temperature dehumidification control mode of above-mentioned Fig. 1, though when cooling, can utilize evaporimeter 4 to reach predetermined dew-point temperature,, when radiator is subsequently constantly heated, make that but room temperature improves constantly, uncontrollable, therefore, though this system can reach the purpose of dehumidifying, uncontrollable constant temperature.

For this reason, other has the people to design the system of another kind of temperature controllable, as shown in Figure 2, after compressor 1 is with refrigerant boil down to high temperature and high pressure gas, the radiator 2 as heat transmission thereupon is arranged on outside the body, again after expansion valve 3 step-downs, enter evaporimeter 4 heat absorptions in the body and disengage low temperature, electric heater 6 of installing utilizes the temperature detector 7 that is located in the air outlet in body, behind the air themperature sensing of sending, 6 heating of via controller 8 control electric heaters.Above-mentioned control device, because radiator 2 is installed in outside the body, make air themperature when behind evaporimeter 4, sending by air blast 5, can reach the constant temperature demand, when the air themperature that is blown out reaches predetermined temperature, but when humidity is higher, after temperature detector 7 sensings, via controller 8 starts electric heater 6 heats, and when temperature rises above design temperature, just stops the action of heating of heater 6, the keying of heater 6 is all controlled by elements such as electromagnetic switch, therefore, when the variation of temperature and humidity was very fast, the electromagnetic switch of electric heater 6 and control element thereof will continue out, the startup of closing, make these facility be easy to damage, in addition, owing to adopt additional power source to make heater 6 actions, also expended considerable electric energy, 1,000 watts electrical power only can produce 860 kilocalories/hour heat with electric heater, so carry out the control of constant temperature dehumidification under this control mode is very non-remunerative, and safeguards pretty troublesomely, and cost is higher.

Therefore, as far as is known, be used for carrying out the control system of constant temperature dehumidification, mostly can only carry out the control of thermostatic control or constant humidity, desire to reach the system that constant temperature and humidity is controlled simultaneously, not only be difficult to, and improper because of in the design, control element damages often, and is with high costs, is difficult to solve.

But primary and foremost purpose of the present utility model is to provide the dehydrating unit of the few constant temperature of a kind of consumed power, it mainly is to utilize refrigerant heat sinking function after compression, after outside body, dispelling the heat, introduce again and heat in the body with heat radiation, refrigerant after expansion step-down cooling, disengage low temperature with the evaporimeter heat absorption of being located in the body, to reach the purpose of cooling and the dehumidifying of heating back.

Of the present utility model time but a purpose is providing a kind of dehydrating unit of constant temperature, it mainly is to utilize the temperature detector in the body to cooperate controller, when the air themperature that blows out is higher or lower than design temperature, control the rotating speed of a radiator fan, regulate in the body constant temperature with heating of hot coil again according to the radiating rate of radiator, reach the purpose of constant temperature dehumidification.

For achieving the above object, the utility model is taked following technical measures:

But the dehydrating unit of a kind of constant temperature of the present utility model comprises: controller, compressor, radiator, expansion valve and evaporimeter;

Also comprise a constant temperature hot coil again that is positioned at body; Radiator is located at outside the body;

Compressor, radiator, hot coil, expansion valve and evaporimeter connect successively again; Evaporimeter connects compressor again, forms the closed circuit of a refrigerant;

By the HTHP refrigerant after the compressor compresses, earlier at radiator heat-dissipation, import the hot coil again in the body again, the refrigerant after the cooling is again through the expansion valve step-down, and the evaporimeter heat absorption that imports in the body disengages low temperature, passes back into compressor again.

Wherein, also can comprise a temperature detector that is connected with described controller;

Described radiator comprises a radiator fan that is used to regulate the described temperature of hot coil again, and radiator fan connects the controller that is used to control its rotating speed.

Wherein, described radiator can comprise that also is used to prevent the overcooled radiator of rising again of refrigerant; The radiator of rising again is positioned at outside the body, and is connected between described hot coil again and the expansion valve.

Wherein, described temperature detector can be located in the body or the interior space.

Reaching embodiment in conjunction with the accompanying drawings is described in detail as follows architectural feature of the present utility model:

Description of drawings:

Fig. 1,2: but the schematic diagram of the dehydrating unit of two kinds of existing constant temperature;

Fig. 3: but the schematic diagram of the dehydrating unit of constant temperature of the present utility model.

At first see also control device shown in Figure 3, but the dehydrating unit of constant temperature of the present utility model is to utilize compressor with refrigerant boil down to high pressure-temperature gas, be directed at and be located at extra-organismal heat transmission radiator and a radiator fan 21 is regulated its radiating rate, again refrigerant is directed at another constant temperature hot coil 91 again in the body, can again refrigerant be directed at extra-organismal rising again with radiator 92, afterwards, can be through expansion valve 3 step-downs, import the evaporimeter 4 in the body again, and be back to compressor 1 again with after the refrigerant evaporation via evaporimeter 4, continue cyclic process as the aforementioned.The rotation of radiator fan 21, be to utilize to be located at body air outlet or indoor temperature detector 71 and the velocity of rotation that is provided with a humidity sensor 72 cooperation controllers 8 adjusting radiator fans 21 in the airtight interior space in addition, can regulate the heat-sinking capability of radiator 2 according to the speed of its velocity of rotation, and then influence the constant temperature exothermic temperature of hot coil 91 again, promptly adjust indirectly to heat and use the temperature of heating of hot coil 91 again by the temperature-sensitive wet condition of temperature detector 71 and humidity sensor 72.

When using dehydrating unit of the present utility model, indoor air enters in the body, lowered the temperature through evaporimeter 4 earlier, to required dew-point temperature, heat with hot coil 91 again through constant temperature again, to reach the purpose of control temperature and humidity, when in the air outlet or indoor temperature detector 71 sensed temperature when low than the setting value of temperature controller, then utilize controller to adjust the rotating speed of radiator fan 21, the heat dissipation capacity of 21 pairs of radiators 2 of radiator fan is reduced, then the refrigerant in this body uses the heat dissipation capacity of hot coil 91 to improve at constant temperature again, to improve its ability of heating, makes air themperature and humidity meet demand; Otherwise, air themperature in body is higher, then can cooperate the regulation and control of controller by temperature detector 71, accelerate the rotating speed of radiator fan, when the heat-sinking capability of heat transmission radiator 2 was big, relatively, the constant temperature in body will reduce its temperature with hot coil 91 again, the temperature of heating is reduced, to regulate indoor temperature in setting the numerical value of temperature.In addition, in order to prevent that high-pressure liquid refrigerant is by producing the supercooling phenomenons behind the hot coil 91 again, also can be again after the hot coil 91 at constant temperature, again refrigerant is directed at another radiator valve 92 of rising again, to prevent the refrigerant sub-cooled, just liquid cryogen is directed at expansion valve 3,, and reaches required dew-point temperature with the step-down cooling.

Compared with prior art, the utlity model has following effect:

Because original heat sinking function advances in the constant temperature and humidity device utilisation system of the present utility model Row is heated, and needn't add in addition electric heater, and the expense that can save electric heater can avoid again electric heater to reach The phenomenon that gauge tap damages. Moreover the spent energy of aforementioned existing electric heater heating is 1kw=860 kilocalories/hour, and the utility model just can get 3,024,000 with the electric weight of 0.75kw Card/hour more than heat, cost can reduce a lot, wherein, the electricity charge account for its cost greatly Part, so device of the present utility model not only can reach the purpose of constant temperature dehumidification simultaneously, and Can reduce cost, can reduce the system failure again.

Claims

But 1, a kind of dehydrating unit of constant temperature comprises: controller, compressor, radiator, expansion valve and evaporimeter;

It is characterized in that, also comprise a constant temperature hot coil again that is positioned at body; Radiator is located at outside the body;

Compressor, radiator, hot coil, expansion valve and evaporimeter connect successively again; Evaporimeter connects compressor again, forms the closed circuit of a refrigerant;

By the HTHP refrigerant after the compressor compresses, earlier at radiator heat-dissipation, import the hot coil again in the body again, the refrigerant after the cooling is again through the expansion valve step-down, and the evaporimeter heat absorption that imports in the body disengages low temperature, passes back into compressor again.
2, device according to claim 1 is characterized in that, also comprises a temperature detector that is connected with described controller;

Described radiator comprises a radiator fan that is used to regulate the described temperature of hot coil again, and radiator fan connects the controller that is used to control its rotating speed.
3, device according to claim 1 is characterized in that, described radiator comprises that also is used to prevent the overcooled radiator of rising again of refrigerant; The radiator of rising again is positioned at outside the body, and is connected between described hot coil again and the expansion valve.
4, dehydrating unit according to claim 2 is characterized in that, described temperature detector is located in the body.
5, dehydrating unit according to claim 2 is characterized in that, described temperature detector is located at the interior space.