JPS582539A - Heat accumulating type air conditioner - Google Patents

Abstract

PURPOSE:To enable to cool and heat a room to be air-conditionered by use of heat or cold accumulated in the midnight, by connecting a heat accumulating tank in a cold or hot water circulating passage extended between an indoor heat exchanger and an indoor unit of a space cooling and heating apparatus via a heat accumulating medium circulating passage, and connecting an outdoor heat exchanger to the heat accumulating medium circulating passage. CONSTITUTION:With changing of the direction of flow of a high-temperature, high-pressure coolant gas by shifting of a four-way valve 4, an indoor unit 11 is cooled or heated by an indoor heat exchanger 8. In case of accumulating cold by use of midnight electric power, the indoor unit 11 is by-passed by opening and closing valves 14-16, 20, 21, 28 and by-pass valves 22a, 17a in proper combination, and a heat accumulating tank 24 and the indoor heat exchanger 8 are communicated with each other via a cold or hot water circulating passage 12 and a heat accumulating medium circulating passage 19. In case of accumulating heat by use of the midnight electric power, on the other hand, an outdoor, auxiliary heat exchanger 25 and the heat accumulating tank 24 are communicated with each other via an auxiliary heat circulating passage 26, and connection between the indoor unit 11 and the indoor heat exchanger 7 is broken. Thus, it is enabled to cool or heat a room to be air-conditioned by use of heat or cold accumulated in the midnight.

Description

[Detailed description of the invention] The present invention - Hiro, Keyaki Power has a built-in refrigerating unit and operates a cooling/heating machine to store heat III? The present invention relates to a heat storage type air conditioner that stores heat in an IC and uses it for cooling in the summer and heating in the winter. ' Regarding the heat storage air conditioner of the type ζ'' which has already been proposed, as shown in Part 1II, it is possible to incorporate a well-known refrigeration unit into the cooling/heating unit a, such as submerged ice, etc. latent heat storage material (thermal storage material) that uses the latent heat of solid-liquid to
A large heat storage tank is filled with heat exchanger b1 and a large calorific value m flow path is provided.

The above-mentioned heat storage @* is equipped with a Pi heat exchanger d1, and an in-vehicle unit □4 can be connected to the hot and cold water circulation passage g having a circulation positive and a latent heat exchanger f.

'1-'Therefore, the above-mentioned thermal storage type air conditioner is
When used for cooling, the cooling/heating machine a is switched to the cold one using low-cost late-night electricity, thereby increasing the heat storage material in the heat storage tank q. Add 'M' to 'l' and oei between '77JJl□.

The cold and hot water circulation HIRj1gO@N/I pump is driven to exchange the cold heat stored in the heat storage tank with the circulating fluid (cooling water) in the cold and hot water circulation flow path g to cool the Tominouchi d). It is designed to cool the room.

On the other hand, when using indoor knitwear for heating,
If the cooling/heating machine A is switched to heating mode and driven using the cheaper electric power both nights, the heat storage tank C will be heated and stored, and on the other hand, during daytime heating.

The circulation pump of the cold and hot unit fllflfj & t is driven to exchange the heat stored in the heat storage tank C with the circulating fluid (hot water) of the cold and hot water circulation flow path g to heat the indoor unit) d and heat the room. It is supposed to be done.

However, the advanced heat storage large air conditioner is not limited to the location where it can be installed because it requires the installation of a large heat storage tank.

Usually, cooling and heating are performed via a heat storage tank, so it is difficult to efficiently cool or heat the room when there is indirect heat exchange.

In order to solve the above-mentioned problems, this train connects the cold and hot water inside the car and the JL train through a cold and hot water circulation flow path, and installs a first ring pump in this cold and hot water circulation flow path. A heat storage ** m path is connected to the heat storage circulation flow path, and a good heat storage exchange body is filled with heat storage material and immersed in the heat storage tank, and is installed in the outdoor heat exchanger of the above-mentioned cooling/heating machine. Nine auxiliary heating circulation HA11 equipped with a second merchandising pump! Connect the heat storage circulation flow path to the above heat storage circulation flow path, and connect it to #! The night electricity is used to store cold and heat during cooling and heating, and when necessary, the refrigeration cycle of the cooling and heating equipment is directly used to provide indoor air conditioning through cooling and heating. The present invention provides a heat storage type air conditioner for the purpose of

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

In Fig. 62, the symbol l indicates the refrigeration cycle that constitutes the refrigeration cycle.
It is a heating machine, and the cooling cycle of the ζO cooling/heating machine is cold compression, and the discharge pipe of the machine 20 cold compression is 3KIi%.
One-way valve (also referred to as O1O switching valve) 4, air heat exchanger 5 and water-cooled heat exchanger ai5b for external heat exchange lI4 (condenser during cooling) S, *Ji valve 6, and heat exchanger 1 and an internal heat exchanger (which acts as an evaporator during cooling) 8 are installed. 4. Therefore, when using the cooling/heating machine 1 constituting the above-mentioned refrigeration unit for cooling, the 4-way valve 4 is switched in advance to allow the cold air to flow into the external heat exchanger 5. Do it like this. By driving the cold compressor 2, the cold compressor 2 is pressurized and passed from the upper discharge pipe 3 to the four-way valve 4. It is then supplied to the external heat exchanger 6.

At ζ~, heat is exchanged by the high-temperature voltage cold 1s line air heat exchanger 51 and water-cooled heat exchanger S'bK, 1pk is exchanged, and liquid-cooled mK* is exchanged. Furthermore, the pressure of the Otsu 0 liquid cold paint is reduced by passing it through an expansion valve. Shigashite 1. The ζO decompressed large wave refrigerant exchanges heat with the indoor heat exchanger 80 heat exchanger 7, and the ζOO exchanger 1 is heated to 5? ! reject On the other hand, Joki Rei has finished his work.
Gasification (R) is made to flow through the four-way valve 4 and the supply pipe nitrogen to the cold field compressor. In the warehouse to be used, change the four-way valve 4 in advance so that the refrigerant O flow flows into the indoor heat exchange IIa.
Describe! 9.5. The above-mentioned cold compressor.

By driving the refrigerant compressor 8, the large-scale gas pressurized by the refrigerant compressor 2 is supplied to the in-mold heat exchanger 8 through the four-way valve 4 from the discharge pipes 3 to 5.

Here, the high-pressure gas refrigeration body heats the heat exchanger 8 and exchanges heat, and is converted into the industrial liquid refrigeration body. Sara(.

The pressure is reduced by passing through this liquid cooling Sa, *a valve 6. , Therefore, this reduced pressure and good liquid cooling, p&.

Above – External heat exchange! +USS, heat exchanged with ζ ~ and ζ and imperial heat exchange interrogation. It is designed to flow R to the cold compressor 2.
, On the other hand, in the indoor heat exchanger 7, the island exchanger 7 has the following:
, 11 is the cold and hot water circulation H
IR*1211C yen! III! Samutei) 1, ζO
Cold water circulation channel 12FIC#i iris ring pump u, -rouben 14, and kite 16 are installed. 1ks? , Upper Ie
The cold/hot water circulation passage 12 close to the heat exchanger 7 of the Iil internal heat exchanger 8 is equipped with a bypass valve 17m.
7 is provided, and this bypass 17 forms a circulation path for cold and hot water when using a heat storage tank, which will be described later.

On the other hand, the cold and hot water circulation flow path 1 in which the on-off valve 140 is located
2 is connected to a heat storage circulation passage 19 equipped with a heat storage exchange body 18], and each opening/closing valve array 21 is attached to the pipe line of this heat storage circulation passage 19. Moreover, this heat storage circulation flow path 1
9C) A bypass n having a bypass valve 22= is attached to the cold and hot machine circulation path located above the circle, which is located on the extension. It is designed to form a circulation path. Furthermore, the heat storage exchange body 18 is provided by being immersed in an electric heat storage tank filled with a heat storage tank such as water, spl, and this heat storage tank 2
Thermal storage #4 uses cheap late-night electricity to store thermal energy. Damn it, the water-cooled heat exchange of the Marogai heat exchange fence 5! Auxiliary heat exchanger δ is included in $5b.
is provided, and an auxiliary heat circulation flow path is connected to this auxiliary heat exchanger 25. Furthermore, this auxiliary heat circulation passage 26 is connected to the heat storage circulation passage 19, and furthermore, a second circulation pump 4 and an on-off valve array are installed in this auxiliary heat circulation passage 26.

Hereinafter, the effects of the present invention will be explained.

(1), -), When operating normal air conditioner, indoor & JL
t) When cooling using the air conditioner 11, as described above, the four-way valve 4 is switched to use the refrigeration cycle of the air conditioner/heater 1 for cooling, and the indoor heat exchanger 8 is cooled. While exchanging heat with the O heat exchanger 7 in the indoor heat exchanger 8 to cool it, on the other hand, each on-off valve part, 21, and each bypass valve 1
At the same time, valves 7m and 22a are closed, and on-off valves 14 and 15 are opened.

The first circulation pump 13 is driven. Then, the cold and hot water circulation! The cooling fluid in the I flow path 120 is transferred by the @1 circulation pump 13 to the heat exchanger W in the room (22) 11, and
It is designed to exchange heat and cool the room.

In this case, the auxiliary heating circulation channel-260 second circulation pump 27 has been stopped.

(b) When using late-night electricity to store cold in the thermal storage tank, when using cheap late-night electricity to store cold in the thermal storage tank, close the R4 valve by 16, 20° and the bypass valve in advance. 2
Along with opening 2&.

The remaining open/close valves 14, 15, and 28 and the bypass valve 17m are closed, and the first circulation pump 13 is driven.

On the other hand, the refrigeration cycle of the cooling/heating machine 1 is switched to the cooling cycle, the four-way valve 4 is switched, and the indoor heat exchanger 8 is cooled. Thus, the heat exchanger 7 in the ζOS internal heat exchanger 1B exchanges heat and cools it, and the cooling fluid in the cold/hot water circulation flow path ν is transferred to the heat storage circulation flow by the first circulation pump 13. Passing road 19, the above-mentioned il I & 4111
24 O1m exchanger body exchanges heat with the heat storage material,
This heat storage material B is kept cool at a constant low temperature. Note that the cold storage temperature fl in the heat storage tank is detected by, for example, a temperature detector 29 provided in the heat storage circulation flow path l, and the temperature of the cooling/heating [191 and first circulation pump 13] Driving is now controlled.

Next, when cooling the room by using the heat storage tank, first open the upper leM closing valve 15°20.21 and the bypass valve 17m, and close the on-off valves 14 and 16 and the bypass valve 22m. Bensui. In this way, by driving the iHi Ponguro, the cold/hot water circulation channel n and the heat storage circulation channel intravaginal O cooling fluid cool the heat storage tank and exchange the heat storage material n with heat storage. The interior of the vehicle 11 is cooled by heat exchange through the body 18, thereby cooling the interior of the vehicle.

On the other hand, when the cold storage temperature of the heat storage #5 rises, the temperature rises to 29.

This is detected, and as a result, the cooling/heating machine 1 is driven, and the on-off valve section 21 and the bypass valve 17& are closed, and 11! The Uff valves 14 and 16 are opened. As a result, the same cooling operation as the above-mentioned nine normal cooling operations can be performed.

(detection), -), when performing normal heating operation.

When heating the room using Indoor Two Etsu) 11,
As mentioned above, the indoor heat exchanger 8 is heated by switching the four-way valve 4 of the refrigeration cycle of the cooling/heating machine 1 to heating.

The temperature is increased by exchanging heat with the heat exchanger 7 in the indoor heat exchanger 3. In this way, the first circulation pump 13 is driven in the same manner as in the normal cooling operation described above, and the indoor unit 11 is heated. It is designed to heat the room by heating the room.

In this case, the second circulation pump n in the auxiliary heating circulation channel is driven, the on-off valve 4 is opened, and the other on-off valve 2 is opened.
The valve 0.21 is closed, and the on-off valves 20 and 21 of - are closed. This □ allows auxiliary heating of the water-cooled heat exchanger ssb above the fluid expansion of the auxiliary heating circulation flow path.

伽）II When storing heat in the heat storage tank 24 using night electric power, when storing heat in the heat storage tank 24 using late night electric power, set the on-off valves 16, 20, 21, 28 and bypass valve 22 in advance.
At the same time, the opening/closing valves 14 and 15 and the bypass valve 17m are closed.
and a second circulation pump drive together.

On the other hand, the four-way valve 4 is switched to the refrigeration cycle of the cooling/heating machine 1 for heating, and the indoor heat exchanger aS is heated. Therefore, the O heat exchanger 7 in the indoor heat exchanger 8 exchanges heat and heats it, and the cold/hot water circulating flow 1112
The heating fluid is passed through the heat storage return flow W & 19 by the first circulation pump 13 to the heat storage exchange body 1 in the heat storage cypress.
8 exchanges heat with the heat storage material to keep the heat storage material at a constant temperature.

In addition, is the heat retention temperature inside the heat storage tank above the temperature sensor mentioned above? 4, and the operation of the cooling/heating machine 1, the 11111th pump 13, and the second circulation pump 130 is controlled.

Next KJ! When heating is performed by the heat storage tank U during the heating period, the on-off valve 15 and the bypass valve 17m are opened in advance, and the on-off valves 14, 16, and 28 and the bypass valve 22m are closed. In this way, the first
By driving the circulation pump 13, the O fluid in the cold and hot wood circulation channel and the heat storage circulation mfij 819 exchanges heat with the heat storage material in the queen heat storage tank and the heat storage exchange body 18, and returns the heat to the indoor unit. 11 to heat the room.

On the other hand, when the heat retaining temperature of the heat storage material 23 decreases, the temperature sensor 4 detects this as described above, and thereby drives the cooling/heating machine 1 and also drives the opening/closing valve 20.
．． 21 and the bypass valves 17m and 22m are closed, and the on-off valve path is opened. ' With this, it is possible to perform the same heating operation as in the case of the above-mentioned non-normal t) 8M operation.

Next, the embodiment shown in FIG. 3 is another embodiment of the present invention, in which the heat exchanger 111' is attached to the auxiliary heating circulation flow path and the heat exchanger 111' is directly connected to the heat storage tank 240. %O, which has the same content as the nine-body example mentioned above.
It is.

As described above, according to the present invention, the indoor heat exchanger 118 incorporated in the air conditioner/heater 1 is equipped with a heat exchanger W, and the nine rooms ^et 11 are heated and cooled using the cold and hot wood transfers RR1 & 12! lamshi.

This cold/hot water circulation flow path 12KJII ill field pump 13
A heat storage circulation flow path 19 is connected to the cold and hot water circulation flow path I, and a heat storage exchange body 18 attached to the heat storage circulation flow path 19 is provided by filling the heat storage material cram and crushing the good book heat tank 24KIl, The unexpected heat exchanger 5 of the cooling/heating machine 1 is equipped with a second circulation pump nail, and an auxiliary heat exchanger 5 is provided, and this auxiliary heating circulation flow N26 is sent to the heat storage circulation flow path. Because it is connected, it is possible to store cold and heat during cooling and heating using cheap late-night electricity, and instead of directly using the refrigeration cycle to cool the room using the indoor・In addition to being able to condition the indoor air for heating, it also uses a heat storage tank when heating! Since the heat bong operation can perform omm heating using 4+ thermal energy, it has excellent effects such as increasing the 4 heating capacity even when the outside temperature Ie is low.

[Brief explanation of the drawing]

The first factor is a system diagram of a regenerative air conditioner that has already been proposed, FIG. 2 is a system diagram of a regenerative air conditioner according to the present invention, and #I3m is a diagram showing another embodiment of the present invention. l...Cooling/heating machine, 4...Four-way valve, G...Surprising heat exchanger, 6...J1 tension valve, 7...Heat exchange body, 8...
・Indoor heat exchanger %11...Indoor 2-nit, n...Cold/hot water circulation flow path. 13... First IlfIA pump, 18... Heat storage exchange body, 19... Heat storage circulation channel, 23... Heat storage material, U
...Heat storage@, 2B...Auxiliary heat exchanger, 26...Supplementary II Peng circulation channel, n11. Second circulation pump. Multi Jme dust 2 @

Claims (1)

[Claims] 1. For cooling and heating machines! The in-vehicle lambda knit equipped with a heat exchanger in the internal heat exchanger is ray-gunned in the cold and hot water circulation flow path, a first circulation pump is installed in this cold and hot water circulation flow path, and heat storage circulation is carried out in the cold and hot water circulation flow path. Connect the flow channels, and install a heat storage exchange body filled with heat storage material and immersed in the heat exchanger in the ζOIF mature circulation water passage, and install the heat exchanger in the cooling/heating machine mentioned above. 11 in a bowl
A regenerative air conditioner characterized in that the auxiliary heating circulation passage O is equipped with a 112 circulation pump and the auxiliary heat exchanger is connected to the heat storage circulation passage. A patent characterized in that the heat storage exchanger is placed in the auxiliary heating circulation flow path and the heat storage exchanger is directly connected to the heat exchanger.