JPS58200966A - Absorption cold and hot water machine - 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 relates to an absorption cold/hot water Mζ which is equipped with a dual-effect absorption refrigeration system (dual absorption heat pump @ function Y, and is capable of extracting high-temperature water from a low-temperature heat source regenerator).

Conventionally, in double-effect absorption refrigerating machines, a refrigeration cycle χ is formed by circulating refrigerant and absorption liquid while effectively using one source of low-temperature heat, such as factory waste water, when 191st grade water is required in summer. At least take cold water from the heat exchanger tube stored in the evaporator, and when isothermal water is needed (2. Heat the kerosene, etc., burnt gas Y, attach a water heater Y to the high-temperature regenerator used as the source, and use the hot water The hot water is extracted from the hot water pipes stored in the water heater (2) by the heat condensation of the refrigerant flowing through the vessel and the high-temperature regenerator.

The conventional absorption chiller/heater is a factory when you need hot water!
−+ Low-temperature heat such as hot water #ge Is it a disadvantage of not using it effectively?
have.

The present invention has a certain point (in view of this, this type of absorption refrigeration). Heat exchanger tubes stored in 4 and heat stored in low temperature heat source regenerator, 4jp, tube I
fJIca, the hot water above the low-temperature heat source temperature is collected from the torpedo stored in the absorber (two low-temperature heat regenerators,
By adopting a configuration equipped with a switching mechanism that connects a condenser, evaporator, absorber support, and solution heat exchanger to form an absorption heat pump cycle, low-temperature heat such as waste hot water can be The object of the present invention is to provide an absorption chiller/heater that utilizes water effectively and can obtain hot water at a higher temperature than a low temperature heat source.

Embodiments of the present invention will be described below with reference to the drawings.

(8G) is stored in the vessel ζ: heat track tube fllt', and the heat source tube contains 151Et! A low-temperature heat source regenerator (HG
) is a high-temperature regenerator that heats and separates the refrigerant χ from the intermediate liquid as a high-temperature heat source Y such as combustion gas or high-temperature steam, and (LG) is the refrigerant vapor χfP4 separated in the high-temperature regenerator (H()).
# A low-temperature regenerator that heats and separates the high-concentration intermediate liquid, (0) indicates each spacer (8G) (HG) (LO
) A condenser that cools and condenses the refrigerant flowing in from the cooling pipe (21), (31 is a condenser that cools and condenses the refrigerant flowing from the condenser tCa) to the heat transfer 'Ih3+ stored in the liquid refrigerant Y vessel from the condenser tCa. An evaporator that disperses and vaporizes the vapor, and a low-temperature heat * regenerator (
SG), high-temperature regenerator (HG), and low-temperature regenerator (LG), the absorption liquid from which the refrigerant has been separated is stored inside the vessel (= water pipe (
4) (- an absorber for absorbing vaporized refrigerant by dispersion, (5) and (6) are solution heat exchangers, which are connected to the refrigerant conduit (7)
1, 41 refrigerant liquid flow pipe (8), first refrigerant pump (9) Y
Refrigerant liquid pipe with 01% 41 solution pump + 111 dilute liquid pipe with Circulation of refrigerant and absorption liquid (to form a refrigeration cycle with two
It consists of

The high temperature regenerator (HG) i2 is attached to the auxiliary heat exchanger, and the upper part of the heat exchanger is connected to the refrigerant conduit (branch refrigerant conduit f'7'l of 7), and the lower part is connected to the high temperature regenerator (HG). Vessel (HG)l
Connect the two connected drain pipes 11v to the high temperature regenerator (HG).
) and the auxiliary heat exchanger ill! Designed to allow refrigerant to circulate.

(11 is a bypass heat source tube installed through the three-way valve (1) Y to the heat source tube (1) (-), and part 1 of the bypass heat source tube: @Kine auxiliary heat exchanger tllli2 is stored. There is. (To)
is a connecting pipe connected to the heat source pipe +11 and the connecting pipe w(3), and the connecting pipe and the heat transfer w(31) are provided with on-off valves (6) and +61, respectively, and these opening/closing χ By switching, cold water or low-temperature heat is supplied to the heat transfer tube (31).

(81 is a second refrigerant liquid flow down pipe having a second refrigerant pump (211), (1fI is a second bypass solution pipe having a sixth solution pump), and ((11 is a refrigerant conduit (7)
(=, lfl is the first refrigerant liquid downstream w (8), Igl is the low temperature heat # from the regenerator (8G) to the high temperature regenerator (HG) (- intermediate liquid pipe +411-1lh) is the high temperature regenerator (HG) Intermediate liquid pipe n5 +2, (il
C Concentrated liquid tDE91-1 (jl) 1 $2 Refrigerant liquid flow f
(81+2, line C2(k) is the second bypass bath liquid pipe surface'
Then, use the on-off valves provided for each to switch between opening and closing (circulation of refrigerant and absorption liquid!).

(4) is the main pipe stored in the absorber (A+), the water @ (- is in the temperature detector C241: equipped, and the heat transfer tube (3)
(Two also @: Equipped with a vine detector 12s'P. is a heating control valve to the high temperature regenerator (HG).■ is a +1+J temperature recording [y detector 124
) or (Signal from 2) Adjust the opening of the heating needle control valve and C; 1st, $27'? I medium pump (9) Qυ, 1st, $2, 5th solution Pump 1111t1
This is a controller that starts and stops each Y of 3tη.

Next (-1 Operation operation of an absorption chiller/heater with a pasting configuration (two explanations will be given).

(b) Operation behavior when chilled water is required The cold water must button has a valve (・) Y open valve (blv closed, for example, a heat transfer @ connected to a chilled water load side heat exchanger (not shown) for cooling) [3+4m cold water 'Ik: Flow, bypass heat of three-way valve (&) #'! (Close the flow path on the 11th side,
For example, a low temperature heat source is passed through a heat source pipe (1) connected to a factory waste heat source, and cooling water IF +21 and water t (
41 (2 cooling water Y [and also heats the high temperature regenerator (HG) Y.

Same side (=, cold/hot switching switch f27Lvo contact 1: Connect, pump 191G1113Y operation set L, 166,!
: Both 1m valve! (11, ffl, (gl, Fhl and (
1) Open the pump and stop pump 121J and 1st operation @Y, close valve tjl and (kl 't') and operate.

Therefore, the absorption liquid is transferred from the absorber fAl to the pipe 11, the pump (Ill, !11, solution heat exchanger) 61, 'tn force, low temperature heat θ regeneration 5 (8 ()), Wl'I41, pump 0
, pipe 04, valve (g+, door 04) solution heat exchanger (5), pipe 11 high temperature regenerator (HG), no 0, solution heat exchanger (5)
, ttts, valve (h), pipe 119, low temperature regenerator (L()
), pipe aS, valve (1), WaS, solution heat exchanger (61,
1iae'v and then refluxed to the absorber tAl for circulation. A part of the absorption liquid that has reached the low-temperature heat source regenerator (8G) from the absorber body) is diverted to the pipe a'7), and is transferred to the low-temperature regenerator (LG ) is recombined with the absorption liquid from ).

The refrigerant separated from the absorption liquid in the low-temperature heat source regenerator (8G) and the low-temperature regenerator (LG) is condensed in the internal e-condenser, and the refrigerant separated in the high-temperature regenerator (HG) is Pipe (71, low temperature regenerator (LG), '! + 71° valve + (1
1. It reaches the condenser tc+ through the pipe (7) and is condensed in the condenser. Condenser (C1 (2), condensed refrigerant is pipe (8), valve 15), ! (8), pump (9), pipe (
Through In', it is distributed to the heat exchanger tube (3) in the evaporator [El] and vaporized. The vaporized refrigerant is then absorbed again in the absorber (AIC) and the refrigerant circulation is returned tIP.

A refrigeration cycle is formed in which the refrigerant and the absorbing liquid circulate (4) in this manner, and the heat absorption effect when the refrigerant liquid is vaporized in the evaporator (TGL) C2 takes out cold water Y from the heat transfer tube (31). Absorption cooling ['WA is constructed.

As the cold water load increases, the cold water outlet temperature begins to rise, so the signal from the temperature detector plane (secondary heating acid control valve (@)
Increased opening χ, heating to high temperature regenerator (HG) 11: Increased, refrigerant separation Wk? When the temperature is increased to 1, the absorption and absorption liquid quality r is increased to increase the refrigerating capacity, and the cold water takeout temperature is lowered to take out cold water corresponding to the load of 1 unit.

In addition, if the chilled water load is small and it is sufficient to drive the low temperature heat source regenerator (8G), heating to the high temperature regenerator (2G) may be stopped and refrigeration operation may be performed as a so-called heavy-effect absorption refrigeration tank. Is it possible and also low temperature heat #l? If rA1f is too low and the ability to separate the refrigerant from the absorbing liquid is insufficient (:
Is it supplying low temperature heat source to low temperature heat source regenerator (8G)? Stop, high temperature regenerator (HG) and low temperature regeneration! (LG) drive (refrigeration Liao as a folding double effect absorption refrigerator
It is also iiJ Noh to do something.

(σ) Operation behavior when hot water is required When hot water is required (2, valve (θ)! Close and valve 11) l Y open, three-way valve (al low temperature heat source inlet flow path ll! lt close and bypass heat # pipe (11...11 flow path χ open, low temperature heat I!A
After passing through the auxiliary heat exchanger (L) through the bypass heat exchanger, the heat source tube (1) (-) passes the low temperature heat source through the heat transfer tube (3) (- Low-temperature heat fIA1: Let it flow, let the cooling water flow through the cooling water pipe +21+-, and connect the water pipe (
4) χ For example, hot water load side heat exchanger 9 for heating (not shown)
Connect to hot water! Sink and also to high temperature regenerator (HG) 1:
Heat. At the same time (-1 cold/hot switching switch 7 is connected to contact H), pump (910υ12+) ?3 is activated, valves 1jl and (k) 7 are opened, and pump 0 is deactivated, valves (al, ( fl, tgl, (bl and (
1) Close and operate.

The low-temperature heat source is heated and heated in the auxiliary heat exchanger aSC by the heat of the refrigerant vapor from the high-temperature regenerator (HG),
The refrigerant separation capacity of the low-temperature heat generator (8G) and the refrigerant vaporization capacity of the evaporator tEl are the same as above.

Then, the absorption liquid is transferred from the absorber body to the pipe 1t21. pump 0
υ, tube 0 solution heat exchanger (61, tube 1z, low temperature heat exchanger 5 (S()), qir+i, pump Q7J, tube r+7
1, valve (k), 11! ML tube (161, solution heat exchanger (
6) It is refluxed and circulated through the pipe to the absorber (~).

Also, the refrigerant separated from the absorption liquid in the low-temperature heat source regenerator (8G) is transferred to the condenser +01 in the vessel. - is condensed into f# refrigerant, which is piped (chain, pump +211.! (8
1, valve 1jl,! (81, pump (9), through the hall 1101, the transmission pipe (:(1) in the evaporator [11] is sprayed and vaporized.Then, the vaporized refrigerant is absorbed again in the absorber body,
Refrigerant circulation is retracted. An absorption heat pump cycle is formed by circulating the refrigerant and absorption liquid, and
An absorption heat pump is constructed that takes out hot water from the water pipe (4) by the heat radiation effect when the refrigerant is absorbed by the absorption liquid in the fan unit (A).

As the load of hot water f' increases, the hot water take-out temperature begins to drop, so a signal from the temperature sensor (from the second heating control valve tel PJ4 to the high temperature regenerator (H)) is output. The refrigerant separation is r41ml and (-refrigerant vapor temperature t
The low temperature heat source regenerator (
In other words, increase the refrigerant separation capacity of the evaporator (El) and increase the refrigerant separation capacity of the absorber (A1). The heat dissipation effect χ is increased, and the temperature of the hot water H is raised to draw out the hot water suitable for the load.

Absorption heat pump with foldable configuration (low-temperature heat! @
Meat generator (8G) and condenser (evaporator (E) from Uchida on 01 side
When the internal pressure inside the absorber is higher than that of the calyx, and when the absorption liquid absorbs the refrigerant χ in the absorber (2), the heat generated raises the temperature of the hot water. For example, in an absorption heat pump, by supplying low-temperature heat of 80 to 90℃, hot water or steam with a temperature of 400℃ or higher can be extracted. I can be a man.

As described above, the absorption chilled/hot water bottle of the present invention can be used in a single/two-city absorption chiller that utilizes a low-temperature heat source such as factory waste water.
Low temperature heat #Y1 High temperature regeneration After heating with refrigerant vapor in the auxiliary heat exchanger attached, heat transfer tube and A-tube (switching mechanism that allows two flows, low temperature heat generator J4-4 generator, 19 knitting machine, evaporator , a switching mechanism that connects the absorber and solution heat exchanger to form an absorption heat pump cycle. In either case, can a low-temperature heat source be used effectively, and when hot water is needed, is there high-temperature water that is higher than the low-temperature heat source temperature?
It is something that can be obtained.

[Brief explanation of the drawing]

Inner surface 1. A circuit 41 showing an embodiment of the present invention! FIG.・ (8G)...Low temperature heat source regenerator, (HG)...High temperature regenerator, (L())...Low temperature regenerator, (0)...
Condenser, (El... evaporator, absorber, (1)
...Heat source tube, of...Bypass PP4Ill tube, (
31...Heat transfer tube, 14)...Main pipe, (51t61・
-・Solution heat exchanger, 181...@2 Refrigerant liquid concealment tube, 1
A...Second bypass bath liquid pump, 11 countries...Auxiliary heat exchanger, (21...Connection pipe, Qυ...Second refrigerant pump,
(23...@5 solution pump, 1゛) Yuen...Temperature detector 1. Cup...1,1j down vessel, ijo...cold and warm Kirihiragi sui 7j, lal...three-way valve, (bl(dltel(f)
ltgl(hl[il[k)-3M valve closed, /-...Heating 1 control valve. Applicant: 1 person outside Sanyo Denki M Co., Ltd.

Claims (1)

[Claims] (1) A high-temperature regenerator that uses a low-temperature heat source such as factory waste water as a heating source, a high-temperature heat source such as a horn generator, or a high-temperature heat source such as phosphorus gas, and refrigerant vapor separated by the regenerator. A low-temperature regenerator, a condenser, an evaporator, an absorber, and a solution heat exchanger are connected to form a refrigeration cycle (chi), and the evaporator (a single-duplex system that takes out cold water from a housed heat transfer tube) In an effective absorption refrigerator, a low temperature heat tube is heated by refrigerant vapor in an auxiliary heat exchanger attached to the high temperature regenerator, and then 15 is passed through a heat transfer tube stored in an evaporator and a heat source stored in a low temperature heat source regenerator. Then, connect the absorption heat pump to the low-temperature heat source regenerator, condenser, evaporator, absorber, and solution heat exchanger 1 to take out hot water above the low-temperature heat source temperature from the main pipe stored in the absorber. An absorption chiller/heater characterized by having a cycle Y type 1 switching a*y1'.