JPS5813964A - Absorption type heat pump - 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 The present invention provides an absorber connected to the downstream side of the evaporator to a low pressure and a generator connected to the upstream side of the condenser to use, for example, fluorocarbons or ammonia as a heat transfer medium. This invention relates to an absorption heat pump that has a high pressure chamber.

Conventionally, in the above heat pump, as shown in FIG. 2, the pump u7) absorbs I! Generator from l'71 (
2) If configured to send the absorption liquid to.

The absorption liquid is configured to be returned from the generator (2) to the absorber (7) via the pressure reducing valve U81, and the heat transfer medium from the evaporator (6) is absorbed into the absorption liquid and returned to the generator (2). feed, generator (
The heat transfer medium from 2; is configured to be sent to the gas-liquid separator (1), the condenser (1), the pressure reducing valve, and the evaporator (61) in this order, so that the heat transfer medium from the heat exchanger (3), 141 to It was configured to transfer heat to the other side.

However, in order to drive the pump surface for circulating the absorbent liquid, a large amount of energy is required because the pressure difference after the pump 411 is generally 10 to 15 degrees.
1*The cost of folding the dJ accounted for a fairly large portion of the running cost.

In view of the above-mentioned circumstances, the present invention aims to significantly reduce the running cost by minimizing the energy required for circulation of the absorbent liquid, and to improve the heat transfer performance and reduce the equipment cost. What is advantageous for KL, furthermore, the pump α'/l and the pressure reducing valve 0 mentioned in -11! The purpose is to allow J to be omitted.

Next, embodiments of the present invention will be described with reference to illustrative drawings.

In the condenser (1), a gaseous heat transport medium such as fluorocarbon or ammonia sent from the generator (21) is converted into a heat transport medium supplied to the indoor heat exchanger (3) or the outdoor heat exchanger +41. The liquid heat 31!
! Transfer medium to outdoor or indoor heat exchanger +41,
+31, and in the absorber (7) the gaseous heat transfer medium coming from the evaporator (6) is evaporated by dimethylformamide, dimethylformamide,
It is ovalized to be absorbed into an absorption liquid such as tetraethylene glycol or diethyl glycol, and K is a generator (21
The absorbing liquid is heated using an appropriate heating device such as a gas burner #111.
and is configured to generate a gaseous heat transfer medium.

In one tank, there is a first piston (5 m) that separates an absorbent liquid with a high absorption concentration from an absorbent liquid with a low absorption concentration, and a second piston (5b) that separates the absorbent liquid and the heat transfer medium.
First and second tanks (8a) and (8b) for absorbing liquid and heat transport lines are provided, and these tanks (8-),
(8b) In each case, the motor a3 and the rotating shaft (14
The structure is such that the first and second pistons (5m) and (5b) are simultaneously reciprocated in the far and near direction by the action of the first tank (8a) and (14b).
) and the second tank (8b), the piston (5
m) and (5b) are configured to be transferred.

The first tank (8M) is connected to the circulation flow path (
9m, 9be, 9o, 9d) to supply the absorbent with low absorption concentration from the first tank (8a) to the absorber (7) under the pressure of the first piston (5M), and 7) Divergent liquid with high absorption concentration from All No. 1
and 11P52 piston 7 (5m), (5b) is configured to store in the first tank (8m) by suction action, and the second tank (8b) is connected to the generator (2) K through a circulation flow path ( 9・#9f19ge9h), the absorbent with high absorption concentration from the second tank (8b) is transferred to the generator (2) by the pressing action of the first and second pistons (5a) and (5b). At the same time, the absorption liquid with low absorption concentration from the generator (2) is stored in the second tank (8b) by the suction action of the first piston (5 roar), and the action of the heat exchanger is From the absorption liquid on the return trip (9G) to the outward trip (9h)
It is configured to apply heat to the absorption liquid.

Between both tanks (8M), (8b) and the absorber (7) and generator (21), first and second flow path switching valves (12m),
12b), the second tank (8b) is connected to the absorber (7) and the first tank (8b) is connected to the generator (2).
8m) is configured to connect = I function, and both tanks (-) are connected.
.

In (8b), the action of the absorber (7) stores the absorbent liquid with a high absorption concentration, and at the same time, the animal harvest stored in the other part is
A high absorption liquid is supplied to the generator (2), and the tank (8a) or (8b) is almost full, or the other tank (8b) is almost full. Or (
8a) When the absorbent liquid with high absorption concentration becomes empty, the tank (Sa).

(8b) The configuration is such that the connection relationship between the entrapment vessel (7) and the generator (2) to K can be reversed. The 4Nl tank (8a) is connected to the evaporator (6) in a reciprocating flow path (15 m). ), (15b) connected from K, the heat transfer medium from the first tank (8 tanks) is supplied from the evaporator +61 to the absorber (7) by the ID pressing action of the second piston (5b), and 2 tank (8b) is connected to the condenser (1) through the reciprocating flow path (15@) and (15d) K, and the condenser (
The heat transfer medium from 1) is stored in the second tank (8b) by the suction action of the second piston (5b).

A third flow path switching medium Uυ is interposed between both tanks (8 ha) and (8b) and the condenser (1) and evaporator (6), so that the condenser (ll K) is connected to the first tank ( 8m) and an evaporator (6m)
), the second tank (8b) is configured to be connectable to the first and second flow path switching valves (12Jl), (12b
) and simultaneously operate the third flow path switching valve utg to transfer the heat transport medium sent out from the -10,000 tank (8ha) or (8b) from that tank (8a) or (8b). It is absorbed by the delivered absorption liquid and stored in the tank (8 hatake) or Cab.
) K is stored in the other tank (8b) or (
The structure is such that the absorption liquid sent out from the tank (8b) or (8m) and the heat transfer medium contained in the tank (70) are stored in the tank (8b) or (8m).

In addition, 311 or more tanks (8) may be provided in two groups, and both pistons (158) and (15b) may be driven, and these various drive means may be connected to a drive device (13
, 14).

In addition, various configurations can be used in place of the third flow path switching valve (to) K, and these are collectively referred to as the second switching valve mechanism u1, and furthermore, the first and second switching valve Kaede structures ( 2) It is also possible to make u8 an integral structure.

Although it is possible to manually operate IIl, the second switching valve mechanism (6), and Uυ, it is also possible to install an automatic operation mechanism equipped with a timer, an absorption liquid amount detector, etc. is desirable.

The absorption heat pump according to the present invention may be used exclusively for heating, cooling, or hot water supply, or may be a combination of these as appropriate.

To summarize, the present invention has two features in the absorption heat pump.
and a plurality of absorption liquid and heat transfer medium river tanks 131.
ft, and a circulation path (9Jl to 9h) connecting a part of the absorption liquid tank (8) to the absorber (7)K and the remaining part to the generator (21), respectively. The absorber (7) and the generator (2) for the tank (81)
A first switching valve horizontal m old is provided to reverse the connection relationship of
Part of the heat transfer medium tank 181 is condensed #;l)
Reciprocating channels (15a to 154) connected to the downstream side of the residual St and the upstream side of the evaporation W161, respectively.
Provided, said condenser il+ and evaporation for said heat transfer medium crucible tank (8)! A second valve Ia structure Uυ is provided for reversing the connection relationship of 161, and in the 11 tanks forming the absorbent liquid and hot continuous forging tank 1B+,
The first piston (6m) that separates the absorbent liquid with high absorption concentration from the absorbent liquid with low absorption concentration, and the IN2 piston (5b) that separates the absorbent liquid and the heat transfer medium, are driven by a drive device (18°14). At the same time, the outgoing part (9t) and the returning part (96) of the piston S flow path <ea to 9k) are connected to the piston (5a).
) are connected at opposite positions to the pistons (54m) and (6b), so that an absorbent liquid having an absorption concentration is stored between the two pistons (54m) and (6b), and the reciprocating flow M (15m or 1jSd) 't4tlFk! , 4th tlFk! ,b
) It is characterized by being connected to K on the opposite side to the first piston (5 hatake).

That is, as mentioned above, the absorber (7) and generation! 112+
Separately, the heat transfer line tank (81'& reciprocating flow 11 (15 fields or 15 d) is connected from K to #C. Therefore, high pressure is generated from low pressure yield +'/) as in the past.
It is completely unnecessary to directly supply the liquid to the 12+, and the absorption liquid and heat transfer medium can be supplied independently in the low-pressure system and the high-pressure system, and the energy required for the 111112) can be reduced, for example, by the conventional It can be reduced to 1/4 or more F, so:n
As a result, the energy required for the heat pump as a whole can be reduced by, for example, about 20% compared to the conventional heat pump, and it has become possible to turn the heat pump in a state that is excellent in energy saving and economical efficiency.

Moreover, the absorber (7) and the generator J to the tank (8)
1(2), and the thermal atmosphere transport tank (81
Kaorubuttonki tb>& condensed! Since the connection relationship of il+ can be switched alternately, tank idl 2) Capacity tt
-Even if it is small, it can operate continuously for long periods of time, making it possible to construct a compact Tenkawa-style heat pump.

In addition, in each tank (8), an N piston (jsa
) s (5b) 2) Because the absorption fineness prevents the absorption liquids from mixing with each other and the absorption liquid and the heat transfer medium from mixing, neither the absorber 4'/J nor the starter 12) The piston (5M), (5b
) The absorption liquid and heat transfer medium are forced to flow through the absorber (°l) and heat exchanger! In addition to being able to improve the efficiency of the II device uD, it was also possible to carry out the desired II&D immediately after operation, and as a whole, a dragon with excellent heat transport properties was obtained.

Moreover, the tank (81 and piston (5m), (5b)
By making effective use of the absorption liquid and flowing the non-moving medium, the equipment can be configured at a lower cost than, for example, providing a separate pump for fltI[I, and in addition, the generator 42; and absorber (71), the discharge pressure pump and pressure reducing valve, which were previously required, can be eliminated, and the overall initial cost is also advantageous.

[Brief explanation of the drawing]

The drawings show an embodiment of the animal-contained heat pump according to the failed case, and FIG. 1 is a flow sheet of the failed heat pump, and FIG. 2 is a flow sheet of the conventional Nito Bonp. (11-... Condenser, (21----- Generator, (5m), (5b) -... Piston, (6;
...Evaporator, (7) ...Absorber, (8
1-------py y, (9M naishi 9k) -
---#11 flow path, ■...First switching valve structure,
(13, 14) ------- Transportation equipment-1 (15a to 151) ------- Reciprocating flow path, (ltil --
-----Second switching valve mechanism.

Claims (1)

[Claims] The absorber (7) connected upstream of the evaporator (6) is brought to a low pressure, and the generator (7) connected upstream of the condenser (1) is
This is an absorption heat pump in which a plurality of absorbent liquid and heat transport line tanks (8 noses are provided, and a part of the absorbent liquid tank (8) is connected to the absorbent tank (7). ) and the remainder to the generator 12), respectively.
a to 9h), a first switching valve device MU for reversing the connection relationship of the absorber (71 and generator (2) to the absorbent tank (81), A reciprocating flow path (115Jl to 15d) is provided which connects a part of the tank (81) to the F flow side of the kIkJ device 11 and the remaining part to the upstream side of the IO storage evaporator lLi1, and The said condenser (1) to the tank (81
1 and the evaporator (61) to form the absorption liquid and heat transfer line tank (8). The first piston (5 m) separates the absorbent liquid with high concentration and the absorbent liquid with low absorption concentration, and the second piston separates the absorbent liquid and the heat transfer medium.
A piston (5b) is provided so as to be able to reciprocate simultaneously in the far and near directions K by means of a drive device (13, 14'), and a forward path portion (9f) and a backward path portion (9g) of the circulation flow paths tea to 9h) are provided. The two pistons (5&), (
5b) Kl so that absorbent liquid with high absorption concentration is stored between
1, and the reciprocating flow path (5a to 15d) is connected to the first piston (5b) with respect to the second piston (5b).
An absorption heat pump that is characterized by being connected on the opposite side of the heat pump.