Refrigeration house air cooler capable of reducing relative air humidity

Abstract

The utility model provides a refrigeration house air cooler capable of reducing relative air humidity, which comprises a controller, a machine shell, an evaporator on an evaporator end plate in the machine shell, an air inlet and an air outlet on the machine shell, and a fan arranged at the air outlet, the device is characterized in that an auxiliary condenser and a fin type air electric heating tube are arranged on an end plate of the evaporator, the auxiliary condenser is close to the evaporator, and the controller controls the fin type air electric heating tube to heat. A machine interior humidity sensor and a machine interior temperature sensor are arranged in the machine shell, and the controller is respectively connected with the machine interior humidity sensor and the machine interior temperature sensor. An electromagnetic valve is arranged on a heat exchange copper pipe of the auxiliary condenser, and the control end of the electromagnetic valve is connected with the controller; and the controller controls the fin-type air electric heating tube to heat through the silicon controlled rectifier. The air conditioner not only can refrigerate, but also can reduce relative humidity, and has the characteristics of low cost, low energy consumption, easiness in control, wider application temperature range, simple structure and practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to refrigeration equipment technical field, specifically a kind of cold storage air cooler that can reduce air relative humidity. BACKGROUND

[0002] Refrigerator is usually composed of compressor, condenser, evaporator, expansion valve and electric control system.

[0003] Ordinary cold storage air cooler is "evaporator of refrigeration system + fan", and air cooler can reduce the temperature of air in cold storage to below ambient temperature and stabilize at a certain temperature point, but ordinary air cooler cannot make air dry.

[0004] Seed cold storage, medicine cold storage, traditional Chinese medicine cold storage, fine chemical cold storage and the like not only need to ensure the temperature of cold storage, but also need to ensure the dryness of air in cold storage.

[0005] The current general technical solution is "air cooler + dehumidifier", and the advantages of this technical solution are that two kinds of equipment can be bought and matched according to parameter requirements, and there are various types and parameters of air coolers and dehumidifiers on the market, which are easy and convenient to purchase; The main disadvantages are: high cost, high energy consumption, and the control lines of two different manufacturers' equipment need to be removed and redeveloped; There are other shortcomings that need to be discussed separately, including two types of dehumidifiers, cooling dehumidifier and rotary dehumidifier. Cooling dehumidifier cannot work normally at a temperature of about 0℃, which limits its application occasions; Rotary dehumidifier needs to install rotary regeneration exhaust duct, fresh air duct and other components, making the structure very complex and cumbersome, and it will also consume air in the cold storage that meets the temperature requirements.

[0006] The working principle of the existing "air cooler + dehumidifier" technical solution is: the air in the cold storage is sucked into the evaporator from the rear of the air cooler under the drive of the fan, and the air is cooled (water vapor in the air is condensed or frosted) and discharged from the air outlet of the air cooler. In this process, the temperature of the air decreases, the absolute humidity of the air decreases, and the relative humidity increases. Then under the action of dehumidifier, the relative humidity of air decreases.

[0007] How to design a cold storage air cooler that can reduce the relative humidity of air to solve the above problems and deficiencies in the prior art, which can not only refrigerate but also reduce the relative humidity, and has the characteristics of low cost, low energy consumption, easy control, wide application temperature range, simple structure and practicality, is a technical problem to be solved in the field. INVENTION CONTENTS

[0008] The utility model discloses a cold storage cold -blast machine that can reduce air relative humidity, which can cool and reduce relative humidity, has the characteristics of low cost, low energy consumption, easy control, wide application temperature range, simple structure and practicality.

[0009] The utility model discloses a cold storage cold -blast machine that can reduce air relative humidity, which can cool and reduce relative humidity, has the characteristics of low cost, low energy consumption, easy control, wide application temperature range, simple structure and practicality.

[0010] A cold storage cold -blast machine that can reduce air relative humidity, which can cool and reduce relative humidity, has the characteristics of low cost, low energy consumption, easy control, wide application temperature range, simple structure and practicality.

[0011] Further improve the above technical solution: the machine is provided with a humidity sensor and a temperature sensor in the machine, and the controller is connected with the humidity sensor and the temperature sensor respectively.

[0012] Further improve the above technical solution: the auxiliary condenser is provided with a solenoid valve on the heat exchange copper pipe, and the control end of the solenoid valve is connected with the controller; the controller controls the heating of the finned air electric heating pipe through silicon controlled rectifier.

[0013] Further improve the above technical solution: the finned air electric heating pipe heating is connected with the controller through a silicon controlled rectifier.

[0014] Further improve the above technical solution: the fan is a variable frequency fan, and the control end of the variable frequency fan is connected with the controller.

[0015] Further improve the above technical solution: the heat exchange copper pipe of the auxiliary condenser is in a serpentine shape.

[0016] The utility model discloses a cold storage cold -blast machine that can reduce air relative humidity, which can cool and reduce relative humidity, has the characteristics of low cost, low energy consumption, easy control, wide application temperature range, simple structure and practicality.

[0017] 1、 the utility model discloses setting up auxiliary condenser and finned air electric heating pipe on the evaporator end plate, and the controller controls the heating of the finned air electric heating pipe, and the auxiliary condenser and the finned air electric heating pipe cooperate heating, so that cooling and reducing relative humidity can be realized.

[0018] 2, the utility model discloses in the shell sets up the in-machine humidity sensor and in-machine temperature sensor, and the heat exchange copper pipe of auxiliary condenser is provided with solenoid valve, and the controller can according to the humidity and temperature measured in the shell, the solenoid valve of auxiliary condenser is controlled reasonably, makes it reduce air relative humidity quickly, and the heating of finned air electric heating pipe can be controlled accurately by the silicon controlled rectifier controller control heating temperature and air relative humidity. In this way, the air of proper temperature and humidity can be sent out from the air outlet of cold storage air cooler,

[0019] 3, the utility model discloses the fan is frequency conversion fan, and the controller can also adjust the speed of frequency conversion fan according to the humidity and temperature measured in the shell, so that the air outlet of cold storage air cooler sends out air to meet the use demand,

[0020] 4, the utility model discloses have the advantages of low cost, less energy consumption, easy control, application temperature range is wide (can also work below 0 DEG C), simple structure, practical. ACCURACY

[0021] Fig. 1 It is a kind of cold storage air cooler of the utility model that can reduce air relative humidity's stereogram structure schematic diagram;

[0022] Fig. 2 It is a kind of cold storage air cooler of the utility model that can reduce air relative humidity's side structure schematic diagram;

[0023] Fig. 3 It is a kind of cold storage air cooler of the utility model that can reduce air relative humidity's control principle block diagram.

[0024] The number in drawing is: 1, evaporator;2, auxiliary condenser;3, finned air electric heating pipe;4, shell;5, fan. SPECIFIC IMPLEMENTATION

[0025] The utility model is further explained in detail as follows in connection with the drawings:

[0026] Referring to Figs. 1-3 , the utility model discloses a kind of cold storage air cooler of the embodiment that can reduce air relative humidity, including controller, shell 4, evaporator 1 on the evaporator end plate in shell 4, air inlet on shell 4, air outlet and the fan 5 being set at air outlet, evaporator 1 is close to the air inlet setting.In evaporator end plate sets up auxiliary condenser 2 and finned air electric heating pipe 3, auxiliary condenser 2 is close to evaporator 1, the controller controls the finned air electric heating pipe heating.

[0027] Further, the in-machine humidity sensor and in-machine temperature sensor are arranged in the above-mentioned shell 4, and the controller is connected with the in-machine humidity sensor and the in-machine temperature sensor respectively.

[0028] Further, an electromagnetic valve is arranged on the heat exchange copper pipe of the auxiliary condenser 2, a control end of the electromagnetic valve is connected with the controller, and the auxiliary condenser 2 is controlled to heat;

[0029] Further, the finned air electric heating pipe 3 is connected with the controller through a thyristor controller, and the heating temperature can be accurately controlled.

[0030] Further, the fan 5 is a variable frequency fan, and a control end of the variable frequency fan is connected with the controller.

[0031] Preferably, the heat exchange copper pipe in the auxiliary condenser 2 is arranged in a serpentine shape.

[0032] The finned air electric heating pipe 3 has adjustable and rapid heating capacity (small thermal inertia) and high control precision; the auxiliary condenser 2 has low heating temperature, large heating capacity and large thermal inertia, and can not only almost have no energy consumption, but also improve the energy efficiency ratio of the system, and has adjustable and large thermal inertia heating capacity (through the electromagnetic valve) and low control precision.

[0033] In use, when the humidity difference between the set humidity and the humidity in the warehouse is large (for example, the cold storage is just a large number of goods, rainy days, long time opening the warehouse door, inventory, long power-off time, etc.), the controller detects that the humidity difference is large, at this time, the electromagnetic valve of the auxiliary condenser 2 is opened, so that the relative humidity of the air is quickly reduced. When the humidity difference between the set humidity and the humidity in the warehouse is small, the electromagnetic valve of the auxiliary condenser 2 is controlled to be closed, and the finned air electric heating pipe 3 is controlled to heat through the thyristor controller, so that the target value can be quickly approached. Since the temperature difference is 1 DEG C and the relative humidity difference is 5%, the controller of the utility model is not “on-off-on-off” control.

[0034] The working principle of the utility model is as follows: the air in the cold storage is sucked into the evaporator 1 from the rear part of the fan 5 under the driving of the fan 5, the air is cooled (water vapor in the air is condensed water or frost), and is discharged from the evaporator 1. In this process, the air temperature decreases, the air absolute humidity decreases, and the relative humidity increases. Then, the air enters the auxiliary condenser 2 and the finned air electric heating pipe 3, in this process, the air temperature rises, the air absolute humidity does not change, the air relative humidity decreases, and the air becomes dry.

[0035] The utility model can also be provided with an indoor humidity sensor and an indoor temperature sensor in the machine shell 4, and an electromagnetic valve is arranged on the heat exchange copper pipe of the auxiliary condenser 2. At this time, the controller can control the electromagnetic valve according to the measured humidity and temperature in the machine shell 4, so as to adjust the flow of the refrigerant in the heat exchange copper pipe, realize the adjustment of the air heating capacity, and even close the electromagnetic valve, so that the heat exchange copper pipe stops heating, and the cold storage air cooler sends out air with appropriate temperature and humidity through the air outlet.

[0036] The fan 5 is a variable frequency fan, and the controller can also adjust the speed of the variable frequency fan according to the humidity and temperature measured in the casing 4, so that the air flow sent out by the air outlet of the cold storage air fan meets the use requirement.

[0037] The above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by ordinary skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A cold storage air cooler capable of reducing the relative humidity of air, comprising a controller, a casing, an evaporator on an evaporator end plate in the casing, an air inlet on the casing, an air outlet, and a fan arranged at the air outlet, the evaporator being close to the air inlet, characterized in that, the evaporator end plate is provided with a plurality of air inlets, the air inlets are arranged in a staggered manner, and the air inlets are arranged in a staggered manner. The evaporator end plate is provided with an auxiliary condenser and a finned air electric heating pipe, the auxiliary condenser is close to the evaporator, and the controller controls the finned air electric heating pipe to heat.

2. The cold storage air cooler capable of reducing air relative humidity according to claim 1, characterized in that, The machine housing is provided with an internal humidity sensor and an internal temperature sensor, and the controller is connected with the internal humidity sensor and the internal temperature sensor respectively.

3. The cold storage air cooler capable of reducing air relative humidity according to claim 1 or 2, characterized in that, The electromagnetic valve is arranged on the heat exchange copper pipe of the auxiliary condenser, and the control end of the electromagnetic valve is connected with the controller; and the controller controls the finned air electric heating pipe to heat through a silicon controlled rectifier.

4. The cold storage air cooler capable of reducing air relative humidity according to claim 1 or 2, characterized in that, The finned air electric heating pipe heating is connected with the controller through a silicon controlled rectifier.

5. The dehumidifying cold storage air cooler according to claim 3, wherein The finned air electric heating pipe heating is connected with the controller through a silicon controlled rectifier.

6. The cold storage air cooler capable of reducing air relative humidity according to claim 1 or 2, characterized in that, The fan is a variable frequency fan, and the control end of the variable frequency fan is connected with the controller.

7. The dehumidification type cold storage air cooler according to claim 5, wherein The fan is a variable frequency fan, and the control end of the variable frequency fan is connected with the controller.

8. The cold storage air cooler capable of reducing air relative humidity according to claim 1 or 2, characterized in that, The heat exchange copper pipe of the auxiliary condenser is arranged in a serpentine shape.

9. The dehumidification type cold storage air cooler according to claim 3, wherein The heat exchange copper pipe of the auxiliary condenser is arranged in a serpentine shape.

10. The dehumidifying cold storage air cooler according to claim 7, wherein The heat exchange copper pipe of the auxiliary condenser is arranged in a serpentine shape.

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