JPS622270Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a heat pump in which an internal combustion engine is immersed in a heating medium contained in a can, a compressor is driven by the internal combustion engine, and the compressor operates a refrigeration circuit in cycles. The main purpose of the device is to absorb the vibrations and noise of the internal combustion engine.

In general, this device is becoming widely used for hot water supply and space heating, but because it uses an internal combustion engine and is submerged, vibrations, noise, and heat medium leakage become major problems.

Therefore, in the present invention, a flexible soft material such as rubber is interposed between the supporting part of the internal combustion engine and the can body, so that the vibrations of the internal combustion engine are not transmitted to the can body, and the noise of the internal combustion engine is prevented from being transmitted to the can body. The can body is prevented from coming out of the body, and the opening of the can body is closed by the flexible soft material, thereby eliminating the normally required lid.

According to the present invention, a vibration-proof, sound-proof and liquid-tight structure can be easily and inexpensively obtained.

Hereinafter, before describing embodiments, a typical air conditioning water heater equipped with a conventional heat pump device will be described with reference to FIG. 1.

This air conditioning hot water supply system uses the exhaust heat of an internal combustion engine and the heat of a heat pump device to supply hot water and space.It mainly consists of a can body A2 containing a heat medium A1 such as water, and a heat medium A1 inside the can body A2. Internal combustion engine 3 immersed in
, a lid 11 with an air supply pipe 8 and an exhaust pipe 9 connected to the internal combustion engine 3, and a lid 11 immersed in the heating medium A1 with a water supply pipe 15 connected to one port and a hot water supply pipe 16 to the other port. A connected hot water heat exchanger 5 and an outgoing pipe 17 and a return pipe 18 to an external heater (not shown)
The heating heat exchanger 6 is connected to a heating heat exchanger 6, and a refrigeration circuit 14 is formed by a compressor 10. The can body A2 is a tank filled with a heat medium A1 such as water, and has heat insulation, sound insulation, and sound absorption properties, and has an internal combustion engine 3, an exhaust gas heat exchanger 7,
A hot water supply heat exchanger 5 and a heating heat exchanger 6 are housed.

By the way, the internal combustion engine 3 causes the heat medium A1 to radiate heat and also drives the compressor 10. For this purpose, a portion of the internal combustion engine 3 may be immersed.

The compressor 10 is arranged near the opening of the can body A2,
The refrigeration circuit 14 is configured together with the condenser 21, the expansion valve 20, and the evaporator 19.

The hot water supply heat exchanger 5 is for heating tap water with the heating medium A1 to supply hot water.

The heating heat exchanger 6 is a circuit in which an outgoing pipe 17, a return pipe 18, an external heater, and a circulation pump (both not shown) are connected, and is used to heat the circulating water. Others: heating heat exchanger B22, outbound pipe B2
3. There is a return pipe B24, a can body B25, and a heat medium B26.

The operation of this device is generally as follows.

By starting the internal combustion engine 3, the compressor 10 is driven, and the condenser 21, expansion valve 20, and evaporator 19 are activated.
A refrigeration circuit 14 consisting of the following operates in cycles. Air conditioning can be achieved by transferring heat from the evaporator 19,
The condenser 21 radiates heat and heats the heat medium B26. On the other hand, in the can A2, the heat medium A1 is heated by the heat of the internal combustion engine 3 itself, and the heat medium A1 is also heated by the exhaust gas of the internal combustion engine 3 through the exhaust gas heat exchanger 7. The tap water passing through the hot water supply heat exchanger 5 is heated by the heated heat medium A1 and can be supplied from the hot water supply pipe 16. Further, the circulating water passing through the heating heat exchanger 6 can be heated and heated by an external heater. Note that also in the can body B25, the circulating water passing through the heating heat exchanger B22 is heated by the heated heat medium B26 and can be heated by another external heater.

In addition to being used as an air conditioner, the evaporator 19 of the refrigeration circuit 14 can also be placed outdoors and used as an outdoor heat exchanger. Furthermore, the heating heat exchanger B22 can be used for hot water supply by connecting it to a hot water supply circuit.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.

FIG. 2 shows in detail the internal combustion engine and the can body of the embodiment of the present invention. First, reference numeral 27 is made of a flexible soft material such as rubber, and its outer peripheral portion is placed on a flange 2a protruding around the can body A2, and a ring plate 271 is fixed with a bolt/nut 28. Furthermore, a groove is provided in the inner peripheral portion of the flexible soft material 27, and the flange 3a of the internal combustion engine 3 is fitted into the groove. Further, the flexible soft material 27 and the flange 3a of the internal combustion engine 3 are fastened together with bolts and nuts 29 as described above.

In addition, the flange 2a of the can body A2 and the flexible soft material 2
The outer periphery of the internal combustion engine 3 and the inner periphery of the flexible soft material 27 are also in close contact with each other.

The embodiment having the above configuration is an internal combustion engine 3.
When started, the can body A2 tends to vibrate in the horizontal, circumferential, and vertical directions due to the reciprocating movement of the piston 31 of the internal combustion engine 3 and the rotational movement of the shaft 32 and flyhole 33. However, flexible soft material 2
Since the inner circumferential portion and the outer circumferential portion of 7 are respectively fastened to the internal combustion engine 3 and the can body A2, the internal combustion engine 3
The vibrations and noise are absorbed by the flexible soft material 27 and are not transmitted to the can body A2. As a result, can body A2
does not vibrate or make noise.

In addition, even if the can body A2 vibrates slightly, the heat medium A2 is sealed with the flexible soft material 27.
There is no fear that 1 will leak out from the can body A2.

Further, according to this embodiment, the vibrations and noise of the internal combustion engine 3 can be absorbed by simply attaching the flexible soft material 27 to the flange 3a of the internal combustion engine 3 and then assembling them into the can body A2. is heating medium A1
It acts as a lid to prevent evaporation and leakage of
There is no need to prepare a new lid, and costs can be reduced. In addition, the structure is simpler and easier to assemble than those in which a vibration-proof structure is provided between the lid and the can body.

Although the specific embodiments have been described above, the shape of the flexible soft material can be variously modified, and of course may include a hollow portion.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of an air conditioning water heater equipped with a conventional heat pump device, and FIG. 2 is a sectional view showing in detail the internal combustion engine and the can body of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Heating medium A, 2... Can body A, 2a... Flange of can body, 3... Internal combustion engine, 3a... Flange of internal combustion engine, 10... Compressor, 27... Flexible soft material .

Claims (1)

[Scope of utility model registration request] In the heat pump device, a compressor disposed near the opening of the can is driven by an internal combustion engine at least partially immersed in a heating medium in the can, and the compressor causes a refrigeration circuit to cycle. A flexible soft material such as rubber is fastened around the internal combustion engine, and the outer periphery of the flexible soft material is fastened around the can body, thereby absorbing the vibration and noise of the internal combustion engine and also tightening the can body. A heat pump device using an internal combustion engine, characterized in that the opening of the heat pump is closed.