CN101799207B - System and method for recycling waste heat of bath sewage by utilizing absorption heat pump - Google Patents

System and method for recycling waste heat of bath sewage by utilizing absorption heat pump Download PDF

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Publication number
CN101799207B
CN101799207B CN2010101201565A CN201010120156A CN101799207B CN 101799207 B CN101799207 B CN 101799207B CN 2010101201565 A CN2010101201565 A CN 2010101201565A CN 201010120156 A CN201010120156 A CN 201010120156A CN 101799207 B CN101799207 B CN 101799207B
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China
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heat
delivery port
sewage
absorption type
running water
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CN2010101201565A
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Chinese (zh)
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CN101799207A (en
Inventor
付林
刘兰斌
张世钢
江亿
罗勇
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清华大学
北京环能瑞通科技发展有限公司
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Abstract

The invention discloses a system and a method for recycling waste heat of bath sewage by utilizing an absorption heat pump. The system comprises a hot water storage tank, a cesspool, a tap-water pipe and an absorption heat pump set, wherein the tap water is divided into two branches after being pressurized by a feed water pump; one branch exchanges heat in the absorption heat pump set firstly and then enters the hot water storage tank; the other branch enters a tap-water preheater and exchanges heat with the sewage directly; the effluent absorbs heat and rises the temperature through an absorber and a condenser and then enters the hot water storage tank for being used as hot water for bath; the bath sewage is collected by the cesspool and is purified; the purified sewage is filtered by a filter, is pressurized by a sewage pump, then enters the tap-water preheater, and exchanges heat with the tap water firstly; and the effluent exchanges heat with refrigerating fluid of an evaporator and then is exhausted. The invention does not need to additionally install a boiler as a heat source; and the tap water exchanges heat with the bath sewage directly, so the heat exchange efficiency is improved.

Description

A kind of system and method that utilizes absorption heat pump to reclaim bath sewage used heat

Technical field

The invention belongs to energy technology field, relate to a kind of system that reclaims heat in the sewage, be specifically related to a kind of system that utilizes absorption heat pump to reclaim bath sewage used heat, the invention still further relates to the method for used heat in this employing system recoveries bath sewage.

Background technology

At present, common plunge baths such as school, military camp, natatorium and bath center, most coal-burning boilers of periodic operations that rely on provide hot water, in addition, adopt fuel oil (gas) boiler or electric boiler in addition.And coal-burning boiler efficient is low, and environmental pollution is serious, and fuel oil (gas) boiler receives the influence of fuel supply and price fluctuation bigger, and cost is higher, uses the high-grade electric energy to produce the electric boiler of hot water, is a kind of waste on energy quality.

Above-mentioned common plunge bath is all concentrated relatively with heat and heat extraction, and the bath sewage used heat of discharging is bigger, if can the Waste Heat Recovery in this bath sewage be realized the thermal cycle utilization, no matter be to energy savings, or environmental protection all has very big meaning.

At present, utilize heat pump principle, as low temperature cold source, the heat that extracts wherein heats running water, realizes the recovery of heat in the bath sewage with the bath sewage of discharging.Like patent " energy storage type heat-pump hot-water boiler heat supplying water device " (patent No. ZL01244858.3; Publication number CN2502177, open day 2002.07.24), patent " a kind of wash apparatus of heat pump of recovering residual heat from bathhouse " (patent No. ZL200610112860.X; Publication number CN1916510; Open day 2007.02.21) with patent " a kind of low grade residual heat recovery heat-pump water heater " (patent No. ZL200720003768.X, publication number CN201081401, open day 2008.07.02) operation principle and method based on electric heat pump recovery bathroom waste water heat are disclosed all; Though these methods can both more effectively reclaim the part heat in the bathroom waste water; But the driving force of heat pump all is high-grade electric energy, and long-time use can cause the waste of energy quality, and is also economical inadequately; Patent application " a kind of waste heat recovery type hot-water boiler device in bathroom " (application number 200910131279.6; Publication number CN101520208; Open day 2009.09.02) disclosing a kind of is that thermal source drives the device that absorption heat pump carries out waste heat recovery with the boiler; But there is following problem in this device: 1) driving force of absorption heat pump is come hot water or the steam that source boiler produces, and system requirements is provided with extra boiler as thermal source; 2) running water carries out heat exchange less than direct and bath sewage; But with the intermediate link water ring in the hot water heat exchange, reduced heat transfer temperature difference, heat exchange efficiency is lower; The running water outlet temperature is lower than the temperature with the sewage direct heat transfer, and the capacity of absorption machine strengthens when causing reclaiming identical heat.

Summary of the invention

In order to overcome the problem that exists in the above-mentioned prior art; The purpose of this invention is to provide a kind of system that utilizes absorption heat pump to reclaim bath sewage used heat; Need not the extra boiler that is provided with as thermal source, running water and bath sewage directly carry out heat exchange, have improved heat exchange efficiency.

Another object of the present invention provides a kind of method of utilizing said system to reclaim bath sewage used heat.

The technical scheme that system of the present invention adopted is:

A kind of system that utilizes absorption heat pump to reclaim bath sewage used heat comprises hot water storage tank 1, cesspool 2, running water pipe and absorption type heat pump assembly 7, and said absorption type heat pump assembly 7 is direct-fired source pump; Dispose feed pump 8 on the running water pipe; A road of the delivery port of feed pump 8 is connected with the low temperature side water inlet of running water preheater 5; The low temperature side delivery port of running water preheater 5 is connected with the water inlet of the absorber 7b of absorption type heat pump assembly 7; The delivery port of absorber 7b is connected with the water inlet of condenser 7c, and the delivery port of condenser 7c is connected with hot water storage tank 1; Another road of the delivery port of feed pump 8 is connected with the water inlet of the flue gas heat exchange device 14 of absorption type heat pump assembly 7, the delivery port of flue gas heat exchange device 14 directly be connected with hot water storage tank 1 or insert the generator 7a of absorption type heat pump assembly 7 after be connected with hot water storage tank 1 again; The delivery port of cesspool 2 is connected with the water inlet of filter 3, and the delivery port of filter 3 is connected with the high temperature side water inlet of running water preheater 5, is connected with sewage draining exit after the high temperature side water outlet of running water preheater 5 and the evaporimeter 7d heat exchange.

Dispose the controller that disposes on the 9th valve 18, the nine valves 18 according to its unlatching running water flow size of variation control of hot water storage tank 1 liquid level on the running water pipe of feed pump 8 front ends.

Dispose sewage heat exchanger 6 between the high temperature side delivery port of said running water preheater 5 and evaporimeter 7d, the evaporation side of the low temperature side of said sewage heat exchanger 6 and evaporimeter 7d constitutes closed circuit.

Dispose heat pipe 13 between the high temperature side delivery port of said running water preheater 5 and evaporimeter 7d, said heat pipe 13 1 ends are arranged in the evaporimeter 7d, the high temperature side delivery port phase configuration of the other end and running water preheater 5.

The high temperature side delivery port of said running water preheater 5 directly is connected with the cooling inlet of evaporimeter 7d, and the coolant outlet of evaporimeter 7d is connected with sewage draining exit.

One bypass pipe road is set, and its pipeline is provided with non-return valve 11 between the water inlet of hot water storage tank 1 and feed pump 8.

Another technical scheme that system of the present invention adopted is:

A kind of system that utilizes absorption heat pump to reclaim bath sewage used heat comprises hot water storage tank 1, cesspool 2, running water pipe and absorption type heat pump assembly 7, and said absorption type heat pump assembly 7 is steam or hot water flooding's dynamic formula source pump; Dispose feed pump 8 on the running water pipe; A road of the delivery port of feed pump 8 is connected with the low temperature side water inlet of running water preheater 5; The low temperature side delivery port of running water preheater 5 is connected with the water inlet of the absorber 7b of absorption type heat pump assembly 7; The delivery port of absorber 7b is connected with the water inlet of condenser 7c, and the delivery port of condenser 7c is connected with hot water storage tank 1; Another road of the delivery port of feed pump 8 is connected with the low temperature side water inlet of the heat exchanger 17 of absorption type heat pump assembly 7, and the low temperature side delivery port of heat exchanger 17 directly is connected with hot water storage tank 1; The entery and delivery port of the high temperature side of heat exchanger 17 goes out with steam or the hot water of the generator 7a of absorption type heat pump assembly 7 respectively, import is connected; The delivery port of cesspool 2 is connected with the water inlet of filter 3, and the delivery port of filter 3 is connected with the high temperature side water inlet of running water preheater 5, is connected with sewage draining exit after the high temperature side water outlet of running water preheater 5 and the evaporimeter 7d heat exchange.

The technical scheme that method of the present invention adopted is:

A kind of method of utilizing absorption heat pump to reclaim bath sewage used heat; The system that realizes this method comprises hot water storage tank 1, cesspool 2, running water pipe and absorption type heat pump assembly 7; After feed pump 8 pressurizations, divide two-way with running water; After 7 heat exchange of one tunnel entering absorption type heat pump assembly, directly get into the generator 7a heat absorption intensification back entering hot water storage tank 1 of hot water storage tank 1 or entering absorption type heat pump assembly 7; Another road then gets in the running water preheater 5 and the sewage direct heat transfer, and the heat absorption back of heating up gets into hot water storage tank 1 and is used as the bathing water with condenser 7c through the absorber 7b of absorption type heat pump assembly 7 respectively again in water outlet; Adopt cesspool 2 to collect waste water of bath and purify, the sewage after the purification filters through filter 3, gets into running water preheaters 5 by sewage pump 4 pressurization backs again, and at first with the running water heat exchange, water outlet is discharged again with after the cold-producing medium heat exchange of evaporimeter 7d.

Said absorption type heat pump assembly 7 is direct-fired absorption type heat pump assembly or steam or hot water flooding's dynamic formula absorption type heat pump assembly.

Carry out indirect heat exchange through sewage heat exchanger 6 is set between the cold-producing medium of said evaporimeter 7d and the sewage, or adopt heat pipe 13 to carry out heat exchange, or let sewage directly get into the cold-producing medium direct heat transfer of evaporimeter 7d and evaporimeter 7d.

Compared with prior art, the present invention has following characteristics:

One, adopted the absorption type heat pump assembly, extra boiler need be set as driving heat source;

Two, realized giving the switching of direct heating of running water and waste heat recovery two states flexibly, guaranteed that the bathing initial stage provides the bathing water;

Three, running water directly and sewage carry out heat exchange, reduced the heat transfer temperature difference loss of intermediate link, promptly under identical heat exchanger area, the heat that exchanges for is more, has effectively reduced the capacity of source pump, has improved heat exchange efficiency;

Four, increase bypass line at feed pump 8 inlets and water storage box 1, can effectively guarantee to get into the stability of flow of absorption type heat pump assembly, guarantee the set steady operation through feed pump 8; When hot water temperature in the hot water storage tank 1 is low, realized that hot water circuit heats again simultaneously.

Five, the water yield from the beginning that gets into feed pump 8 can be controlled through the liquid level of hot water storage tank 1;

Six, realized the flue gas condensing recuperation of heat.

Description of drawings

Fig. 1 is the structure principle chart of direct-fired absorption type heat pump assembly indirect heat exchange type of the present invention system.

Fig. 2 is the structure principle chart of direct-fired absorption type heat pump assembly heat pipe heat exchanging type of the present invention system.

Fig. 3 is the structure principle chart of direct-fired absorption type heat pump assembly direct heat transfer type of the present invention system.

Fig. 4 is the structure principle chart of steam of the present invention or hot water flooding's dynamic formula absorption type heat pump assembly indirect heat exchange type system.

Fig. 5 is the structure principle chart of steam of the present invention or hot water flooding's dynamic formula absorption type heat pump assembly heat pipe heat exchanging type system.

Fig. 6 is the structure principle chart of steam of the present invention or hot water flooding's dynamic formula absorption type heat pump assembly direct heat transfer type system.

Among the figure, the 1-hot water storage tank; The 2-cesspool; The 3-filter; The 4-sewage pump; 5-running water preheater; The 6-sewage heat exchanger; 7-absorption type heat pump assembly; The 7a-generator; The 7b-absorber; The 7c-condenser; The 7d-evaporimeter; The 7e-burner; The 8-feed pump; 9a-first valve; 9b-second valve; 10a-the 3rd valve; 10b-the 4th valve; 10c-the 5th valve; The 11-non-return valve; The 12-solution heat exchanger; The 13-heat pipe; 14-flue gas heat exchange device; 15a-the 6th valve; 15b-the 7th valve; 16-the 8th valve; The 17-heat exchanger; 18-the 9th valve; 19-the tenth valve; 20-the 11 valve.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is elaborated.

As shown in Figure 1, direct-fired absorption type heat pump assembly indirect heat exchange type of the present invention system comprises hot water storage tank 1, cesspool 2, running water pipe and absorption type heat pump assembly 7, and said absorption type heat pump assembly 7 is direct-fired source pump; Dispose feed pump 8 on the running water pipe; A road of the delivery port of feed pump 8 is connected with the low temperature side water inlet of running water preheater 5; Be provided with the second valve 9b between the low temperature side water inlet of the delivery port of feed pump 8 and running water preheater 5; The low temperature side delivery port of running water preheater 5 is connected with the water inlet of the absorber 7b of absorption type heat pump assembly 7, and the delivery port of absorber 7b is connected with the water inlet of condenser 7c, and the delivery port of condenser 7c is connected with hot water storage tank 1; Another road of the delivery port of feed pump 8 is connected with the water inlet of the flue gas heat exchange device 14 of absorption type heat pump assembly 7; Be provided with the first valve 9a between the water inlet of the delivery port of feed pump 8 and flue gas heat exchange device 14, the delivery port of flue gas heat exchange device 14 directly be connected with hot water storage tank 1 or insert the generator 7a of absorption type heat pump assembly 7 after be connected with hot water storage tank 1 again; The delivery port of cesspool 2 is connected with the water inlet of filter 3, and the delivery port of filter 3 is connected with the high temperature side water inlet of running water preheater 5, is connected with sewage draining exit after the high temperature side water outlet of running water preheater 5 and the evaporimeter 7d heat exchange.

Dispose the controller that disposes on the 9th valve 18, the nine valves 18 according to its unlatching running water flow size of variation control of hot water storage tank 1 liquid level on the running water pipe of feed pump 8 front ends.

Dispose sewage heat exchanger 6 between the high temperature side delivery port of said running water preheater 5 and evaporimeter 7d, the evaporation side of the low temperature side of said sewage heat exchanger 6 and evaporimeter 7d constitutes closed circuit.

One bypass pipe road is set, and its pipeline is provided with non-return valve 11 between the water inlet of hot water storage tank 1 and feed pump 8.

The operation principle of present embodiment is: running water divides two-way after feed pump 8 pressurizations; Behind one tunnel entering flue gas heat exchange device 14 and the flue gas heat exchange; Through 19 controls of the tenth valve, the generator 7a heat absorption intensification back that gets into absorption type heat pump assembly 7 gets into hot water storage tank 1 or directly gets into hot water storage tank 1; Another road then gets in the running water preheater 5 and the sewage direct heat transfer, and the heat absorption back of heating up gets into hot water storage tank 1 and is used as the bathing water with condenser 7c through the absorber 7b of absorption type heat pump assembly 7 respectively again in water outlet.Said cesspool 2 is collected waste water of bath and is purified; Sewage after the purification filters through filter 3; Get into running water preheater 5 by sewage pump 4 pressurization backs again, at first with the running water heat exchange, water outlet gets among sewage heat exchanger 6 and the evaporimeter 7d again and discharges after the recirculated water heat exchange; The low temperature side of said sewage heat exchanger 6 and absorption type heat pump assembly 7 evaporation side constitute closed circuit, and on closed circuit, are provided with circulating pump; Said absorption type heat pump assembly 7 is direct-fired absorption type heat pump assembly; Its inner burner 7e fuel combustion in required driving force source; Thereby extra thermal source need be set as driving force; Simultaneously the 3rd valve 10a and the 4th valve 10b are set on the solution circulation line between generator 7a and the absorber 7b, valve the 5th valve 10c is set on the steam pipework between generator 7a and the condenser 7c; At hot water storage tank 1 and feed pump 8 inlets one bypass pipe road is set directly, and non-return valve 11 is set on its pipeline, to guarantee getting into the stability of flow of source pump through feed pump 8; Increase the 9th valve 18 of controlling flow before at feed pump 8 and bypass pipe tie point, this valve opening is controlled by the liquid level of hot water storage tank 1; Running water pipe trackside at running water preheater 5 is provided with bypass pipe, and the 11 valve 20 is set above that.

When bathing begins, because cesspool does not have sewage, can't carry out waste heat recovery, absorption type heat pump assembly 7 gets into gives the direct heated condition of running water.At this moment; The 5th valve 10c of the 3rd valve 10a of solution loop, the 4th valve 10b and steam loop all closes; The water supply pipe first valve 9a opens, and the second valve 9b closes, and second valve 19 lets the generator bypass line close; The pipeline that gets into generator 7a is opened, and lets running water can get into generator 7a; Heat pump is opened, but this moment since solution do not circulate, running water at first in flue gas heat exchange device 14 with flue gas heat exchange after, get into again and get into hot water storage tank 1 after being heated to the hot water temperature who needs among the generator 7a.After sewage collecting arrived to a certain degree, absorption type heat pump assembly 7 switched to the waste heat recovery state.The 5th valve 10c of the 3rd valve 10a, the 4th valve 10b and the steam loop of solution loop all opens at this moment; The second valve 9b on the water supply pipe opens; The first valve 9a regulates flow automatically; The tenth valve 19 switches to and lets bypass line open, and the pipeline that gets into generator 7a is closed, and running water directly gets into hot water storage tank 1 through flue gas heat exchange device 14 heating backs; Another road running water is after running water preheater 5 and sewage direct heat transfer; Get into successively again and get into hot water storage tank 1 after absorber 7b and condenser 7c are warming up to the demand hot water temperature; Realize waste heat recovery, the running water water yield that wherein gets in the feed pump 8 can be through the liquid level control of hot water storage tank 1.20 on the 11 valve on the running water bypass pipe of running water preheater 5 is according to the running water temperature control break-make that gets into before the running water preheater 5.

As shown in Figure 2; Direct-fired absorption type heat pump assembly heat pipe heat exchanging type of the present invention system adopts heat pipe 13 heat exchange between the cold-producing medium of evaporimeter 7d and sewage; Be to dispose heat pipe 13 between high temperature side delivery port and the evaporimeter 7d of said running water preheater 5, said heat pipe 13 1 ends are arranged in the evaporimeter 7d, the high temperature side delivery port phase configuration of the other end and running water preheater 5; Thereby the raising heat exchange efficiency reduces the sewage drainage temperature.

As shown in Figure 3; The high temperature side delivery port of the running water preheater 5 of direct-fired absorption type heat pump assembly direct heat transfer type of the present invention system directly enters the mouth with the cooling of evaporimeter 7d and is connected; The coolant outlet of evaporimeter 7d is connected with sewage draining exit, and promptly sewage directly gets in the evaporimeter 7d and the cold-producing medium direct heat transfer of evaporimeter 7d.

Said absorption type heat pump assembly 7 can adopt the single-effective absorption source pump, also can adopt the double effect absorption type heat pump unit.

Run duration of the present invention, the 9th valve 18 is according to the size of the variation control running water flow of hot water storage tank 1 liquid level, when liquid level is higher; Close minor valve, the flow that gets into running water in the feed pump 8 reduces, because feed pump 8 inlet pressures change; Hot water in the hot water storage tank 1 just gets into feed pump 8 inlets through bypass pipe; Mix after feed pump 8 entering systems heat up with running water, when the 9th valve 18 is closed fully, realize fully that then hot water circuit heats in the hot water storage tank again; When liquid level is low, open big valve, get into that the running water flow becomes big in the feed pump 8, entrance of water-supplying pump pressure raises gradually, because pressure changes, the hot water water yield that gets into feed pump 8 through bypass pipe reduces.If feed pump 8 inlet pressures are higher than the pressure in the hot water storage tank 1, hot water can't flow into feed pump 8 inlets through bypass line, but because the effect of non-return valve 11, running water also can't get into hot water storage tank through bypass line.Be arranged on 20 tap water temperature control break-makes of the 11 valve of running water preheater 5 running water side bypass lines according to entering running water preheater 5; When the running water water temperature before getting into running water preheater 5 is higher than sewage temperature; Valve open, running water do not carry out preheating.This measure has realized that not only the hot water circuit in the hot water storage tank 1 heats again, has guaranteed that also the water yield of entering absorption type heat pump assembly is stable, helps set steady work.

As shown in Figure 4; Steam of the present invention or hot water flooding's dynamic formula absorption type heat pump assembly indirect heat exchange type system; Comprise hot water storage tank 1, cesspool 2, running water pipe and absorption type heat pump assembly 7, said absorption type heat pump assembly 7 is steam or hot water flooding's dynamic formula source pump; Dispose feed pump 8 on the running water pipe; A road of the delivery port of feed pump 8 is connected with the low temperature side water inlet of running water preheater 5; Be provided with the second valve 9b between the low temperature side water inlet of the delivery port of feed pump 8 and running water preheater 5; The low temperature side delivery port of running water preheater 5 is connected with the water inlet of the absorber 7b of absorption type heat pump assembly 7, and the delivery port of absorber 7b is connected with the water inlet of condenser 7c, and the delivery port of condenser 7c is connected with hot water storage tank 1; Another road of the delivery port of feed pump 8 is connected with the low temperature side water inlet of the heat exchanger 17 of absorption type heat pump assembly 7; Be provided with the first valve 9a between the water inlet of the delivery port of feed pump 8 and heat exchanger 17, the low temperature side delivery port of heat exchanger 17 directly is connected with hot water storage tank 1; The entery and delivery port of the high temperature side of heat exchanger 17 goes out with steam or the hot water of the generator 7a of absorption type heat pump assembly 7 respectively, import is connected; The delivery port of cesspool 2 is connected with the water inlet of filter 3, and the delivery port of filter 3 is connected with the high temperature side water inlet of running water preheater 5, is connected with sewage draining exit after the high temperature side water outlet of running water preheater 5 and the evaporimeter 7d heat exchange.

When bathing began, cesspool 2 did not have sewage, can't carry out waste heat recovery, and absorption type heat pump assembly 7 is in stopped status.At this moment, the 6th valve 15a, the 7th valve 15b all closes, and the first valve 9a, the 8th valve 16 on the water supply pipe are opened, and the second valve 9b closes, steam or the hot water heating back entering hot water storage tank 1 of running water in heat exchanger 17.After sewage collecting arrived to a certain degree, the 6th valve 15a, the 7th valve 15b all opened, and the first valve 9a, the 8th valve 16 on the water supply pipe are closed, and the second valve 9b opens, and source pump starts.Running water after entering running water preheater 5 and the sewage direct heat transfer, gets into successively and gets into hot water storage tank 1 after absorber 7b and condenser 7c are warming up to the demand hot water temperature after feed pump 8 pressurizations; Sewage then purifies the back through filter 3 in cesspool 2; Through sewage pump 4 pressurizations, after entering running water preheater 5 and the running water direct heat transfer, get into sewage heat exchanger 6 again; Discharge indirectly and after the evaporimeter system 7d cryogen heat exchange cooling, thereby realize the heat recovery and utilization in the sewage.

As shown in Figure 5; Steam of the present invention or hot water flooding's dynamic formula absorption type heat pump assembly heat pipe heat exchanging type system adopt heat pipe 13 heat exchange between the cold-producing medium of evaporimeter 7d and sewage; Be to dispose heat pipe 13 between high temperature side delivery port and the evaporimeter 7d of said running water preheater 5, said heat pipe 13 1 ends are arranged in the evaporimeter 7d, the high temperature side delivery port phase configuration of the other end and running water preheater 5; Thereby the raising heat exchange efficiency reduces the sewage drainage temperature.

As shown in Figure 6; The high temperature side delivery port of the running water preheater 5 of steam of the present invention or hot water flooding's dynamic formula absorption type heat pump assembly direct heat transfer type system directly is connected with the cooling inlet of evaporimeter 7d; The coolant outlet of evaporimeter 7d is connected with sewage draining exit, and promptly sewage directly gets in the evaporimeter 7d and the cold-producing medium direct heat transfer of evaporimeter 7d.

Claims (12)

1. a system that utilizes absorption heat pump to reclaim bath sewage used heat comprises hot water storage tank (1), cesspool (2), running water pipe and absorption type heat pump assembly (7), it is characterized in that: said absorption type heat pump assembly (7) is direct-fired source pump; Dispose feed pump (8) on the running water pipe; A road of the delivery port of feed pump (8) is connected with the low temperature side water inlet of running water preheater (5); The low temperature side delivery port of running water preheater (5) is connected with the water inlet of the absorber (7b) of absorption type heat pump assembly (7); The delivery port of absorber (7b) is connected with the water inlet of condenser (7c), and the delivery port of condenser (7c) is connected with hot water storage tank (1); Another road of the delivery port of feed pump (8) is connected with the water inlet of the flue gas heat exchange device (14) of absorption type heat pump assembly (7), the delivery port of flue gas heat exchange device (14) directly be connected with hot water storage tank (1) or insert the generator (7a) of absorption type heat pump assembly (7) after be connected with hot water storage tank (1) again; The delivery port of cesspool (2) is connected with the water inlet of filter (3), and the delivery port of filter (3) is connected with the high temperature side water inlet of running water preheater (5), is connected with sewage draining exit after the high temperature side water outlet of running water preheater (5) and evaporimeter (7d) heat exchange.
2. system that utilizes absorption heat pump to reclaim bath sewage used heat; Comprise hot water storage tank (1), cesspool (2), running water pipe and absorption type heat pump assembly (7), it is characterized in that: said absorption type heat pump assembly (7) is steam or hot water flooding's dynamic formula source pump; Dispose feed pump (8) on the running water pipe; A road of the delivery port of feed pump (8) is connected with the low temperature side water inlet of running water preheater (5); The low temperature side delivery port of running water preheater (5) is connected with the water inlet of the absorber (7b) of absorption type heat pump assembly (7); The delivery port of absorber (7b) is connected with the water inlet of condenser (7c), and the delivery port of condenser (7c) is connected with hot water storage tank (1); Another road of the delivery port of feed pump (8) is connected with the low temperature side water inlet of the heat exchanger (17) of absorption type heat pump assembly (7), and the low temperature side delivery port of heat exchanger (17) directly is connected with hot water storage tank (1); The entery and delivery port of the high temperature side of heat exchanger (17) goes out with the steam or the hot water of the generator (7a) of absorption type heat pump assembly (7) respectively, import is connected; The delivery port of cesspool (2) is connected with the water inlet of filter (3), and the delivery port of filter (3) is connected with the high temperature side water inlet of running water preheater (5), is connected with sewage draining exit after the high temperature side water outlet of running water preheater (5) and evaporimeter (7d) heat exchange.
3. system according to claim 1 and 2; It is characterized in that: dispose the 9th valve (18) on the running water pipe of said feed pump (8) front end, dispose controller on the 9th valve (18) according to its unlatching running water flow size of variation control of hot water storage tank (1) liquid level.
4. system according to claim 1 and 2; It is characterized in that: dispose sewage heat exchanger (6) between the high temperature side delivery port of said running water preheater (5) and evaporimeter (7d), the evaporation side of the low temperature side of said sewage heat exchanger (6) and evaporimeter (7d) constitutes closed circuit.
5. system according to claim 1 and 2; It is characterized in that: dispose heat pipe (13) between the high temperature side delivery port of said running water preheater (5) and evaporimeter (7d); Said heat pipe (13) one ends are arranged in the evaporimeter (7d), the high temperature side delivery port phase configuration of the other end and running water preheater (5).
6. system according to claim 1 and 2 is characterized in that: the high temperature side delivery port of said running water preheater (5) directly is connected with the cooling inlet of evaporimeter (7d), and the coolant outlet of evaporimeter (7d) is connected with sewage draining exit.
7. system according to claim 1 and 2 is characterized in that: between the water inlet of hot water storage tank (1) and feed pump (8), a bypass pipe road is set, and its pipeline is provided with non-return valve (11).
8. system according to claim 1 and 2 is characterized in that: described absorption type heat pump assembly (7) adopts the single-effective absorption source pump.
9. system according to claim 1 and 2 is characterized in that: described absorption type heat pump assembly (7) adopts the double effect absorption type heat pump unit.
10. method of utilizing absorption heat pump to reclaim bath sewage used heat; The system that realizes this method comprises hot water storage tank (1), cesspool (2), running water pipe and absorption type heat pump assembly (7); It is characterized in that: after feed pump (8) pressurization, divide two-way running water; After one tunnel entering absorption type heat pump assembly (7) heat exchange, directly get into generator (7a) the heat absorption intensification back entering hot water storage tank (1) of hot water storage tank (1) or entering absorption type heat pump assembly (7); Another road then gets in the running water preheater (5) and the sewage direct heat transfer, and absorber (7b) and condenser (7c) heat absorption that absorption type heat pump assembly (7) are passed through in the water outlet more respectively back of heating up gets into hot water storage tank (1) as the bathing water; Adopt cesspool (2) to collect waste water of bath and purify, the sewage after the purification filters through filter (3), gets into running water preheater (5) by sewage pump (4) pressurization back again, and at first with the running water heat exchange, water outlet is discharged again with after the cold-producing medium heat exchange of evaporimeter (7d).
11. method according to claim 10 is characterized in that: said absorption type heat pump assembly (7) is direct-fired absorption type heat pump assembly or steam or hot water flooding's dynamic formula absorption type heat pump assembly.
12. method according to claim 10; It is characterized in that: carry out indirect heat exchange through sewage heat exchanger (6) is set between the cold-producing medium of said evaporimeter (7d) and the sewage; Or adopt heat pipe (13) to carry out heat exchange, or let sewage directly get into the cold-producing medium direct heat transfer of evaporimeter (7d) and evaporimeter (7d).
CN2010101201565A 2010-03-05 2010-03-05 System and method for recycling waste heat of bath sewage by utilizing absorption heat pump CN101799207B (en)

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CN2010101201565A CN101799207B (en) 2010-03-05 2010-03-05 System and method for recycling waste heat of bath sewage by utilizing absorption heat pump

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CN103512193A (en) * 2013-09-29 2014-01-15 广西比迪光电科技工程有限责任公司 Domestic water source heat pump water heater consuming sewage
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CN104089326A (en) * 2014-07-10 2014-10-08 山东北辰机电设备股份有限公司 Energy-saving type absorption heat pump allowing waste water to flow into evaporator directly
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CN105972858A (en) * 2016-06-29 2016-09-28 杭州华电双冠能源科技有限公司 System and method for supplying energy and storing energy by utilizing waste heat of air compressor
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