JPS633152A - Refrigerant heating air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a refrigerant heating type heating/cooling machine.

2. Description of the Related Art A conventional refrigerant heating heating/cooling machine of this type includes a compressor 1, a four-way valve 2, an indoor heat exchanger 3, and a solenoid valve 4, as shown in FIG.
, a refrigerant heater 6 having a burner section 5, and an accumulator 7
, a compressor heat transfer type heating cycle in which the suction part of the compressor 1 is connected in sequence, an outdoor heat exchanger 9 having the compressor 1, the four-way valve 2, and the blower 8, a primary check valve 10. capillary tube 11, the indoor heat exchanger 3, the four-way valve 2
, a secondary check valve 12, and a cooling cycle in which the accumulator 7 is connected in sequence, and an outdoor heat exchanger for cooling and a refrigerant heater for heating, each independently forming a heating and cooling cycle. It had been.

Problems to be Solved by the Invention However, in the above configuration, first, the outdoor heat exchanger for cooling and the refrigerant heater for heating are configured independently, which increases costs. There was a problem with this factor. In addition, during heating, the burner section 5 heats a dedicated refrigerant heater 6 and transfers heat to the refrigerant, so if the refrigerant gradually leaks from the refrigerant heater due to corrosion, the burner section There was a risk that a chemical reaction with high-temperature combustion gas could induce the generation of toxic gases such as chlorine gas and phosgene. There is also no effective means to detect these toxic gases. Furthermore, the amount of heat transferred from the burner section to the refrigerant via the refrigerant heater is transferred to the indoor heat exchanger by the conveying force of the compressor 1, and is used as heating heat. The input power of the compressor depending on the conveying power was also a factor that reduced system efficiency.

The present invention solves such conventional problems by reducing the cost of the heat exchanger for cooling and the refrigerant heater for heating, which are configured as outdoor units, and even in the event that refrigerant leaks during heating. The purpose of this invention is to prevent the generation of toxic gases, and furthermore, to provide a heat-driven heat transfer system in which the power for heat transfer is obtained by the pressure difference of the refrigerant without relying on the power of a compressor.

Means for Solving the Problems In order to solve the above-mentioned problems, the refrigerant heating heating/cooling machine of the present invention has a dual-purpose outdoor heat exchanger for cooling and a refrigerant heater for heating. In addition to heating the refrigerant directly from the burner, outside air is introduced into the combustion chamber and mixed with the combustion gas so that the temperature is below the temperature at which the refrigerant undergoes a chemical reaction. It is equipped with a thermally driven heat transfer system that is obtained by inducing a pressure difference in the refrigerant rather than by the power of the refrigerant.

Function The present invention integrates the refrigerant heater for heating and the outdoor heat exchanger for cooling with the above-described configuration, resulting in a dual-purpose heat exchanger, which reduces costs, and allows outside air to be taken in.
This and combustion gas are mixed and the temperature is below the chemical reaction temperature of the refrigerant, so even if the refrigerant leaks from the heat exchanger due to corrosion, no toxicity will occur.

As a result, refrigerant leakage can be detected using an inexpensive method such as a refrigeration cycle main switch, extinguishing the burner section, and issuing an alarm. In addition, since the compressor power is not used as the heat transfer power, and the non-electric transfer power is used by the heat-driven heat transfer method, it has the effect of increasing system efficiency.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

FIG. 1 shows a refrigerant heating heating/cooling cycle configuration, in which 20 is a heat transfer section, a pressure inlet 21, an inlet section 22, an outlet section 23
The pressure inlet 21 and the first electromagnetic valve 25, the inlet portion 22 and the first check valve, and the outlet portion 23 and the second check valve are connected to each other. Further, two first heat exchangers each having a burner section 28, a third solenoid valve 30, and a second heat exchanger 32 having a second blower 31 are connected in sequence, and the first heat exchanger 29 and the second solenoid valve 30
the refrigerant path between, the first solenoid valve 25, and the first heat exchanger 2.
9, the second check valve 27, and the second heat exchanger 3.
a heat-driven heat transfer type heating cycle in which the outlet section of the compressor 33 and the first check valve 26 are respectively connected; and a discharge section of the compressor 33;
a third check valve 34, the first heat exchanger 29, an expander 35,
Third solenoid valve 36, second heat exchanger 32, fourth solenoid valve 3
7. A refrigerant heating heating/cooling cycle is constituted by an accumulator 38 and a cooling cycle in which the suction section of the compressor 33 is connected in sequence.

In the heating cycle, the first solenoid valve 25, the third solenoid valve 36, and the fourth solenoid valve 37 are closed, and the second solenoid valve 30 is opened, and then the liquid refrigerant in the first heat exchanger 29 heated by the burner part 28 is The liquid evaporates as the pressure rises, becomes gasified, is conveyed to the second heat exchanger 32, condenses, and is used as heating heat, and is again forced into the control tank 24 and stored therein. − After a certain period of time (
(approximately 1 second) When the pressure at the outlet and inlet of the first heat exchanger 29 is balanced via the heat transfer section 2o by opening the first solenoid valve, the liquid refrigerant accumulated in the separate tank 24 is released. When the first electromagnetic valve is closed, the heat is evaporated again due to the amount of heating heat and transported to the second heat exchanger, forming a heating cycle. The conveyance power is generated by the pressure difference of the heat of the refrigerant itself, and a heat-driven heat conveyance system can be obtained completely without electric power.

In the cooling cycle, when the compressor 33 starts operating with the first solenoid valve 25 and the second solenoid valve 30 closed, the third solenoid valve 36 and the fourth solenoid valve 37 opened, and the burner part 28 closed,
The refrigerant that has been sucked in is compressed and discharged by the compressor 33, and is heat-radiated and condensed by the air blown by the first heat exchanger 29 and the first blower 40, and further passes through the expander 35 and reaches the second heat exchanger 32, where it absorbs heat. evaporated, and the fourth solenoid valve 37
The cooling cycle is configured such that the air returns to the compressor 33 again through the air.

FIG. 2 shows the main air passage 39 of the outdoor unit around the first heat exchanger 29 shown in FIG. Note No.-Heat exchanger 2
A first blower fan 39 is disposed at a downstream position on the combustion gas outlet side of the burner section 9, and the combustion gas generated from the burner section 28 is mixed with the outside air flow sucked from the outside air suction port 41 by the first blower. , the combustion temperature is lowered to an appropriate temperature, the mixed combustion gas temperature heats the refrigerant flowing in the first heat exchanger 29, and the first blower 40 causes the refrigerant to flow through the suction port 41 to the exhaust port 42. It is composed of

During cooling, the burner section 2B is simply closed, and the first blower 39 rotates to take in outside air, which radiates refrigerant heat from the two first heat exchangers and is used as cooling heat.

Effects of the Invention According to the refrigerant heating heating/cooling machine of the present invention as described above, the following effects can be obtained.

(1) Since the outdoor heat exchanger, which is a condenser for cooling, and the refrigerant heater for heating are integrated, it saves materials for the heat exchanger and labor for operation control, etc. Cost reduction can be expected.

(2) During heating, high system efficiency can be obtained because the configuration allows heat transfer by a thermally driven heat transfer method without using a compressor and without electricity.

(3) During heating, if the configuration is such that the refrigerant thermal decomposition temperature can be set within the permissible temperature by controlling the mixture of combustion gas and outside air,
1. It has the effect of preventing the generation of toxic gases due to refrigerant leaks.

(4) Since the configuration enables cycle switching between cooling and heating without using a four-way valve and with a small number of solenoid valves, there is an effect of further reducing costs.

[Brief explanation of the drawing]

Fig. 1 is a cycle configuration diagram of a refrigerant-heating heating/cooling machine according to an embodiment of the present invention, Fig. 2 is a configuration diagram of the main air passage of the outdoor unit of the same machine, and Fig. 3 is a diagram of a conventional refrigerant-heating heating/cooling machine. It is a cycle block diagram. 20... Heat transfer section, 25... First solenoid valve, 2
B...Burner section, 29...First heat exchanger, 3o...
...Second solenoid valve, 32-...Second heat exchanger, 33
...Compressor, 34...Third check valve, 35...
... Expander, 36--Third solenoid valve, 37...
Fourth solenoid valve, 40...First blower, 41...
・Suction port, 42...exhaust port. Name of agent: Patent attorney Hoo Nakao and 1 other person No.1
figure,? 7 Figure 2 23-Banaja Figure 3

Claims (1)

[Claims] a control tank having a pressure inlet, an inlet, and an outlet; the pressure inlet and a first electromagnetic valve; the inlet and a first check valve;
The outlet section and the second check valve are respectively connected to constitute a heat transfer section, and a first heat exchanger having a burner section, a second solenoid valve, and a second heat exchanger are connected in sequence, and the first a refrigerant path between the heat exchanger and the second solenoid valve, the first solenoid valve, an inlet of the first heat exchanger and the second check valve, an outlet of the second heat exchanger and the first A heat-driven heat transfer type heating cycle is constructed by connecting the check valves to each other, and the discharge part of the compressor, the third check valve, the first heat exchanger, the expander, the third electromagnetic valve, and the second A refrigerant heating heating/cooling cycle is provided in which a heat exchanger, a fourth electromagnetic valve, an accumulator, and a suction part of the compressor are sequentially connected to form a cooling cycle, and the first heat exchanger is connected to the combustion gas of the burner part. A refrigerant heating heating/cooling machine equipped with an air passage that exchanges heat with a mixture of combustion gas and air mixed with outside air.