KR100909382B1 - Heating device for diffusion absorption refrigerator and its control method - Google Patents

Abstract

The present invention relates to a heating device for diffusion absorption refrigerators, the heating device is a fuel container in which the fuel is stored, a holder tube connected to the other end of the fuel supply pipe is connected to one end of the fuel supply pipe, the upper portion of the holder tube Burner, a combustion catalyst installed in the longitudinal direction on the burner, a heating pipe wrapped in the longitudinal direction by wrapping the burner and the combustion catalyst on the side of the nutrient solution pipe of the refrigerator, and a predetermined portion of the fuel supply pipe. It includes a solenoid valve mounted. In addition, the diffusion type absorption refrigerator heater includes a fuel container in which fuel is stored, a burner having one end connected to the other end of the fuel supply pipe connected from the fuel container, and a hollow in which the burner is installed at the bottom and wrapped around the nutrient solution pipe of the refrigerator. A cylindrical casing, and a fibrous combustion catalyst positioned on the top of the burner and filled in the center of the casing. According to the configuration as described above of the present invention can be burned stably as well as complete combustion.

Description

Catalytic burner device for diffusion-absorption refrigerator and there of control method             

1 is a schematic perspective view of a combustion heating apparatus for a diffusion absorption type refrigerator according to an embodiment of the present invention.

Figure 2 is a schematic diagram of a combustion heating apparatus for diffusion absorption type refrigerator according to another embodiment of the present invention.

3 is an electrical circuit diagram of a combustion catalyst heating apparatus according to the present invention.

4 is a flow chart for explaining the combustion catalyst heating apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: heating device, 12: combustion catalyst,

14 catalyst burner, 16 holder tube,

20: heating pipe, 32: nutrient solution tube,

34: cylindrical casing, 36: fuel supply pipe,

38: solenoid valve, 40: fuel container,

50: drive switch, 52: temperature sensor,

56,60: relay, 58: spark ignition device

The present invention relates to an absorption refrigerator, and more particularly, to a heater holder tube on the side of a nutrient solution pipe constituting the generator for driving a bubble pump applied to a generator portion of a diffusion absorption refrigerator. The present invention relates to a diffusion type absorption refrigerator heating apparatus capable of stably combusting as well as complete combustion by mounting and operating a catalytic combustion burner and a control method thereof.

In general, the heating device of the diffusion absorption refrigerator is equipped with a direct burner that uses alternating current and direct current power, or a flame such as butane gas or LP gas, directly heats the nutrient solution tube of the generator.

In particular, the heating apparatus using a direct burner such as gas can be easily extinguished when used in a place where the wind is strong, such as outdoors, the operation of the refrigerator is stopped accordingly. In addition, as the heat from the burner, which is a heating device, passes through the heating pipe, the heating pipe acts as a chimney, so that a large amount of useful heat with the exhaust gas is released to the outside, resulting in a large heat loss and an increase in the loss due to incomplete combustion of the fuel. There is a problem.

In addition, flammable flames in direct-burning burners pose a fire hazard when contacted with flammable materials.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a suitable temperature from the initial ignition to the normal operation time when heat combusted through the catalytic combustor is transferred through the nutrient solution tube of the generator. An ignition device that is not affected by wind without degrading the efficiency of the bubble pump in the generator by maintaining (140 ° C-180 ° C), and a heating device for a diffusion absorption refrigerator in which the supplied fuel can be completely burned through a combustion catalyst, and The control method is provided.

This object is achieved by the present invention, and in accordance with one aspect of the present invention, a diffusion type absorption refrigerator heating apparatus includes a fuel container in which fuel is stored, and a holder tube connected to one end of a fuel supply pipe connected to one end of the fuel container. A burner mounted on an upper portion of the holder tube, a combustion catalyst installed in a longitudinal direction on the upper portion of the burner, and a heating pipe wrapped in the longitudinal direction by wrapping the burner and the combustion catalyst on the side of the nutrient solution pipe of the refrigerator; And a solenoid valve mounted to a predetermined portion of the fuel supply pipe.

According to another aspect of the present invention, a diffusion type absorption refrigerator heating apparatus includes a fuel container in which fuel is stored, a burner connected to one end of a fuel supply pipe connected to one end of the fuel container, and the burner is installed at a lower portion of the refrigerator. It includes a hollow cylindrical casing is wrapped around the nutrient solution pipe, and the fibrous combustion catalyst is located on the top of the burner and filled in the center of the casing.

According to another aspect of the present invention, a control method of a heating device for a diffusion type absorption refrigerator includes: opening a gas flow path at a solenoid valve to generate an initial spark ignition when a signal of a driving switch is detected at a controller of the heating device; When the temperature detected by the internal temperature detector is lower than the preset target value, the gas flow path is shut off and the flame burner is ignited again. If the value is high, the gas flow path is opened for several seconds, and in order to switch from the flame burner ignition to the combustion catalyst burner, the gas flow path is blocked for several seconds and the gas flow path is opened again to ignite the combustion catalyst burner. If the temperature detected by the system temperature sensor of the device is detected above the preset temperature, By id valve is achieved, including the step of the gas flow channel is blocked.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and like reference numerals designate like parts throughout the drawings.

1 is a schematic perspective view of a combustion absorption apparatus for a diffusion type absorption refrigerator according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of a combustion heating apparatus for a diffusion absorption type refrigerator according to another embodiment of the present invention. .

As shown in the figure, the diffusion type absorption refrigerator heating apparatus according to the present invention shown by the reference numeral 10 is a holder tube 16 and the holder is connected to the other end of the fuel supply pipe is connected to one end to the fuel container in which the fuel is stored A catalyst burner 14 mounted on the upper portion of the tube 16, a combustion catalyst 12 installed in the longitudinal direction on the burner 14, and the burner 14 and a combustion catalyst on the side of the nutrient solution pipe ( 12 is composed of a heating pipe 20 wrapped in the longitudinal direction.

As shown in FIG. 2, the diffusion type absorption refrigerator heating apparatus according to another embodiment of the present invention includes a fuel container 40 in which fuel is stored, and one end of a fuel supply pipe 36 having one end connected to the fuel container 40. A burner 14 connected to the end, a hollow cylindrical casing 34 in which the burner 14 is installed at the bottom and wrapped around the nutrient solution pipe 32 of the refrigerator, and located at the top of the burner 14. And a fibrous combustion catalyst 12 filled in the center of the casing 34.

At this time, the fuel canister 40 is detachably installed so that the user can easily exchange the fuel canister 40.

3 is an electrical circuit diagram of a combustion catalyst heating apparatus according to the present invention.

As shown in the figure, a drive switch 50, a temperature sensor 54 of a combustion catalyst stage, and a heater temperature sensor 52 of a diffusion absorption refrigerator are respectively provided at an input terminal of a controller having a microcomputer type with a built-in control program. A spark ignition device 58 and a solenoid valve 38 are connected to the output terminal via a first relay 60 and a second relay 56. Here, R1 and R5 are resistors and IC2 is a diode.

With this configuration, the controller is ignited by the combustion catalyst temperature sensor 54 via the first relay 60, and then the solenoid valve 38 is operated by the combustion relay to switch to the catalytic combustion burner 14 in the second relay. The switch is controlled through the 56 and controlled through the second relay 56 to continuously control the appropriate temperature (140 ° C.-180 ° C.) in the heater temperature sensor 52. By forming a typical pumping cycle, it is possible to form a combustion catalyst heating device in which complete combustion is achieved.

4 is a flowchart illustrating a combustion catalyst heating apparatus according to the present invention.

As shown in the drawing, when the signal of the drive switch 50 is detected by the controller, the gas flow path is opened at the solenoid valve 38 (S10) to form an initial flame ignition (S20). If the temperature detected by the internal temperature sensor 54 is lower than the preset value T1 (S30), the gas flow path is cut off (S40), and the flame burner is ignited (58). If the gas flow path is opened for several seconds (S50) to switch from flame burner ignition to combustion catalyst burner 14, the gas flow path is blocked for several seconds (S60), and the gas flow path is opened again (S70) to burn catalyst burner 14 The ignition is switched and a continuous pumping cycle is formed while maintaining the proper temperature.

Then, when the target value is detected by the heating system temperature sensor above the T2 value (S80), the gas flow path is blocked by the solenoid valve 38 (S90) to stop the operation, and when the T2 value is lower than the gas by the solenoid valve 38 Temporarily opened at a set pressure (0.25kg / ㎠) (S70) to provide a high efficiency heating device in the diffusion type absorption refrigerator.

According to the configuration and control method as described above of the present invention, the heating device of the diffusion type absorption refrigerator is completely burned by the combustion catalyst continuously except for the preheating of the combustion catalyst for several seconds during the initial ignition, in which case butane gas and Compared with the LP type fuel burner, even one third of the fuel consumed can produce the heat of the burner, and the operation of the bubble pump is more effective. In addition, the combustion is more than 99.9% of the complete combustion, the generation of NOx and CO2 due to incomplete combustion is almost zero, so the problem of long-term combustion in the limited space, such as indoors, is not only a problem, but also in the place affected by the wind When operating, there is no fear of the flames shaking or extinguishing like in a direct-burning burner, resulting in a stable refrigerator operation.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

Claims (4)

In the diffusion type absorption refrigerator heating apparatus, A fuel container in which fuel is stored; A holder tube having one end connected to the other end of the fuel supply pipe connected from the fuel container; A burner mounted on an upper portion of the holder tube; A combustion catalyst installed in the longitudinal direction on the burner; A heating pipe which is mounted in a longitudinal direction by wrapping the burner and the combustion catalyst on the side of the nutrient solution tube of the refrigerator; And And a solenoid valve mounted on a predetermined portion of the fuel supply pipe. The apparatus of claim 1, wherein the fuel container is detachable. In the diffusion type absorption refrigerator heating apparatus, A fuel container in which fuel is stored; A burner having one end connected to the other end of the fuel supply pipe connected to the fuel container; A hollow cylindrical casing installed at the bottom of the burner and surrounding the nutrient solution pipe of the refrigerator; And And a fibrous combustion catalyst positioned on the top of the burner and filled in the center of the casing. In the control method of the diffusion type absorption refrigerator heating apparatus, When the signal of the drive switch is detected by the controller of the heating device, opening the gas flow path at the solenoid valve to generate an initial flame ignition; When the temperature detected by the internal temperature sensor of the catalyst is lower than a predetermined target value, the gas flow path is blocked to regenerate spark burner; Opening the gas flow path for several seconds when the temperature sensed by the catalyst internal temperature sensor is higher than the predetermined target value; Igniting the combustion catalyst burner by cutting off the gas flow passage for several seconds and then opening the gas flow passage to switch from the flame burner ignition to the combustion catalyst burner ignition; And And a gas flow path is blocked by the solenoid valve when the temperature sensed by the system temperature sensor of the heating apparatus is detected to be higher than a preset temperature.

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