Summary of the invention
The object of the present invention is to provide a kind of multi-source complementation heat pump system for having both hot water preparation and air conditioning function, Neng Gouman
The demand of the annual required heat supply of foot building, air conditioner refrigerating and domestic hot-water's preparation, really realizes a tractor serves several purposes, builds reducing
The utilization rate of equipment is improved while the energy consumption of heat supply and refrigeration.
To achieve the above object, the present invention provides the following technical scheme that
It is a kind of have both hot water preparation and air conditioning function multi-source complementation heat pump system, comprising: heating water tank, fan coil,
First Heat Exchanger, the second heat exchanger, third heat exchanger, compressor, electric expansion valve, sewage heat exchanger, tap-water preheater and
Underground pipe;
The first circulation mouth of the heating water tank is connect with the first tap water port of the second heat exchanger, heats the of water tank
Two circulation ports are connect with the second tap water port of the second heat exchanger, heat the outlet of the water supplement port and tap-water preheater of water tank
Connection;
First tap water port of the first circulation mouth of the fan coil and First Heat Exchanger connects, and the of fan coil
The connection of second tap water port of two circulation ports and First Heat Exchanger;
First working medium port of the First Heat Exchanger respectively with electric expansion valve first port and electric expansion valve second
Port connection;Second working medium port of First Heat Exchanger is connect with compressor inlet and compressor outlet respectively;
First working medium port of second heat exchanger is connect with electric expansion valve first port;The second of second heat exchanger
Working medium port is connect with compressor outlet;
First working medium port of the third heat exchanger respectively with electric expansion valve first port and electric expansion valve second
Port connection;Second working medium port of third heat exchanger is connect with compressor inlet and compressor outlet respectively;Third heat exchanger
The first tap water port connect with underground pipe import and sewage heat exchanger import;Second tap water port of third heat exchanger with
Underground pipe outlet connection and sewage heat exchanger outlet connection.
Optionally, further include the first four-way valve, the second four-way valve, the first triple valve, the second triple valve, third triple valve and
4th triple valve;
The first port of first four-way valve is connect with the first working medium port of third heat exchanger, and the of the first four-way valve
Two-port netwerk is connect with the second port of the first triple valve, the third port of the first four-way valve and the first working medium end of First Heat Exchanger
Mouth connection, the 4th port of the first four-way valve is connect with electric expansion valve second port;
The first port of second four-way valve is connect with the second working medium port of third heat exchanger, and the of the second four-way valve
Two-port netwerk is connect with the second port of the second triple valve, the third port of the second four-way valve and the second working medium end of First Heat Exchanger
Mouth connection, the 4th port of the second four-way valve is connect with compressor inlet;
The first port of first triple valve and the first port of electric expansion valve connect, and the of first triple valve
Three ports are connect with the first working medium port of the second heat exchanger;
The outlet of the first port of second triple valve and compressor connects, the third port of second triple valve with
Second working medium port of the second heat exchanger connects;
The first port of the third triple valve is connect with sewage heat exchanger import, the second port of the third triple valve
It is connect with underground pipe import, the third port of the third triple valve is connect with the first tap water port of third heat exchanger;
First port and the sewage heat exchanger outlet of 4th triple valve connect, the second port of the 4th triple valve
It is connect with the outlet of underground pipe, the third port of the 4th triple valve is connect with the second tap water port of third heat exchanger.
It optionally, further include foul water tank, the foul water tank is for containing filtered sewage.
It optionally, further include sewage pump, the water outlet of the sewage pump and the import of foul water tank connect.
It optionally, further include filter, the water outlet of described filter one end and sewage pump connects, the other end and foul water tank
Import connection.
It optionally, further include drain valve, the outlet connection of the drain valve and foul water tank.
It optionally, further include feed pump, the water outlet of the feed pump and the import of tap-water preheater connect.
It optionally, further include gate valve, the water outlet connection of described gate valve one end and feed pump, the other end and tap water preheat
The import of device connects.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
The present invention by will heat water tank, fan coil, heat exchanger, compressor, electric expansion valve, underground pipe, foul water tank,
Sewage heat exchanger, tap-water preheater and underground pipe carry out pipeline and connect, and can satisfy building annual heat supply, refrigeration and heating
Water demand realizes a tractor serves several purposes, improves energy utilization rate, in addition, the present invention is using underground heat as main heating source, while having both free
Gas source and source of sewage realize that soil takes the balance of heat with accumulation of heat as auxiliary thermal source, by switching operating condition, reduce building energy consumption at
This.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of multi-source complementation heat pump system for having both hot water preparation and air conditioning function, Neng Gouman
The demand of the annual required heat supply of foot building, refrigeration and domestic hot-water's preparation, while the energy consumption of building heat supplying and refrigeration is reduced, it is real
Existing a tractor serves several purposes, improves the utilization rate of equipment.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is a kind of structural schematic diagram for the multi-source complementation heat pump system for having both hot water preparation and air conditioning function of the present invention,
As shown in Figure 1, a kind of multi-source complementation heat pump system for having both hot water preparation and air conditioning function, comprising: heating water tank 1, fan unit
Pipe 2, First Heat Exchanger 3, the second heat exchanger 4, third heat exchanger 5, compressor 6, electric expansion valve 7, foul water tank 8, sewage heat change
Device 9, tap-water preheater 10, underground pipe 11, drain valve 12, gate valve 13, feed pump 14, filter 15, sewage pump the 16, the 1st
Port valve 17, the second four-way valve 18, the first triple valve 19, the second triple valve 20, third triple valve 21, the 4th triple valve 22.
Wherein, it is connected by pipeline between above-mentioned all parts, specific:
The first circulation mouth of heating water tank 1 is connect with the first tap water port of the second heat exchanger 4, heats the of water tank 1
Two circulation ports are connect with the second tap water port of the second heat exchanger 4, heat the water supplement port and tap-water preheater 10 of water tank 1
Outlet connection, the water outlet of heating water tank 1 are connected to bathing for water end (W.E.), and the import of tap-water preheater 10 connects the one of gate valve 13
End, the water outlet of the other end connection feed pump 14 of gate valve 13;The of the first circulation mouth of fan coil 2 and First Heat Exchanger 3
The connection of one tap water port, the second circulation mouth of fan coil 2 are connect with the second tap water port of First Heat Exchanger 3;First
First working medium port of heat exchanger 3 is connect with the third port of the first four-way valve 17, the second working medium port of First Heat Exchanger 3 with
The third port of second four-way valve 18 connects;First working medium port of the second heat exchanger 4 and the third port of the first triple valve 19
Connection, the third port connection of second the second triple valve of working medium port 20 of the second heat exchanger 4;First work of third heat exchanger 5
Matter port is connect with the first port of the first four-way valve 17, the second working medium port and the second four-way valve 18 of third heat exchanger 5
First port connection;First tap water port of third heat exchanger 5 is connect with the third port of third triple valve 21, third heat exchange
Second tap water port of device 5 is connect with the third port of the 4th triple valve 22;The second port and first of first four-way valve 17
The second port of triple valve 19 connects, and the 4th port of the first four-way valve 17 is connect with the second port of electric expansion valve 7;Second
The second port of four-way valve 18 is connect with the second port of the second triple valve 20, the 4th port of the second four-way valve 18 and compressor
6 import connection;The first port of first triple valve 19 is connect with the first port of electric expansion valve 7;Second triple valve 20
First port is connect with the outlet of compressor 6;The first port of third triple valve 21 is connect with 9 import of sewage heat exchanger, third
The second port of triple valve 21 is connect with the import of underground pipe 11;The first port of 4th triple valve 22 goes out with sewage heat exchanger 9
Mouth connection, the second port of the 4th triple valve 22 are connect with the outlet of underground pipe 11;Sewage heat exchanger 9 and tap-water preheater 10
It is placed in foul water tank 8, foul water tank 8 is also used to contain sewage, the outlet of the import connection filter 15 of foul water tank 8, foul water tank
Outlet connect drain valve 12, filter 15 import connection sewage pump 16 water outlet.
Wherein, the effect of underground pipe 11 is the pipeline that soil takes heat and backheat, can be realized soil whole year thermal balance;Sewage
For pump 16 for the sewage that trunk sewer is collected to be drawn into foul water tank 8, the sewage in foul water tank 8 can heat sewage heat exchanger
9 and tap-water preheater 10 in tap water, then by open drain valve 12 can by foul water tank cool down after sewage arrange
Out;So the low-temperature heat source that the present invention uses is respectively the source of sewage and wind of the soil source of underground pipe acquisition, foul water tank acquisition
The air-source of machine coil pickup, when system heat supply, third heat exchanger is equivalent to evaporator, using soil source and source of sewage as low
Temperature-heat-source, while First Heat Exchanger, the second heat exchanger are equivalent to condenser;When cooling system, First Heat Exchanger is equivalent to steaming
Device is sent out, using air-source as low-temperature heat source, while the second heat exchanger, third heat exchanger are equivalent to condenser.
Present invention tool is there are five types of cycle of modes circuit: heat supply is simultaneous to prepare that hot water, refrigeration is simultaneous prepares hot water, heat is prepared separately
Water, separate refrigeration, independent heat supply.
Specific work process of the invention is as follows:
Heat supply is simultaneous to be prepared hot-water mode and is divided into and be as low-temperature heat source, with soil-sewage as low-temperature heat source, using soil using sewage
Low-temperature heat source Three models, as shown in Figure 2:
(1) using sewage as low-temperature heat source operational mode: opening compressor 6, sewage pump 16, feed pump 14, refrigerant flowing
Process: refrigerant is flowed out by compressor 6, enters First Heat Exchanger 3 through the second triple valve 20, the second four-way valve 18 respectively, through the
Two triple valves 20 enter the second heat exchanger 4, and the refrigerant that First Heat Exchanger 3 flows out is through the first four-way valve 17 and the second heat exchanger 4
The refrigerant of outflow meets at the first triple valve 19, enters third heat exchanger 5 using electric expansion valve 7, the first four-way valve 17,
The refrigerant that third heat exchanger 5 flows out is back in compressor 6 through the second four-way valve 18;Fan coil 2 and First Heat Exchanger 3 connect
Water in adapter tube road enters the room fan coil 2, exchanges heat with room air, reaches heating effect, heats water tank 1 and the second heat exchange
Water in the connecting pipe of device 4 enters heating water tank 1, exchanges heat with the cold water in water tank, reaches and prepare hot water purpose;Third is changed
The water that hot device 5 flows out enters sewage heat exchanger 9 through third triple valve 21, is directly heated by sewage, the water after heating is through the four or three
Port valve 22 enters third heat exchanger 5;Tap water enters tap-water preheater 10, tap-water preheater 10 through the pressurization of feed pump 14
In water directly heated by sewage after enter water heating case 1, heat water tank 1 in hot water can be directly used for taking a shower;Sewage is through sewage
16 pressurization of pump enters in filter 15, and foul water tank 8 is entered after filter sewage impurity, heats sewage heat exchanger 9 and tap water heat exchange
Trunk sewer is discharged to through drain valve 12 after water in device 10;
(2) using soil as low-temperature heat source operational mode: opening compressor 6, feed pump 14, close sewage pump 16, refrigerant
Flow process: refrigerant is flowed out by compressor 6, enters First Heat Exchanger 3 through the second triple valve 20, the second four-way valve 18 respectively,
Enter the second heat exchanger 4 through the second triple valve 20, the refrigerant that First Heat Exchanger 3 flows out is through the first four-way valve 17 and the second heat exchange
The refrigerant that device 4 flows out meets at the first triple valve 19, enters third using electric expansion valve 7, the first four-way valve 17 and exchanges heat
Device 5, the refrigerant that third heat exchanger 5 flows out are back in compressor 6 through the second four-way valve 18;Fan coil 2 and the first heat exchange
Water in 3 connecting pipe of device enters fan coil 2, exchanges heat with room air, reaches heating effect, and heating water tank 1 is changed with second
Water in the connecting pipe of hot device 4 enters heating water tank 1, exchanges heat with the cold water in water tank, reaches and prepare hot water purpose;Third
The water that heat exchanger 5 flows out enters underground pipe 11 through third triple valve 21, enters the through the 4th triple valve 22 after being heated by soil
Three heat exchangers 5;Tap water enters tap-water preheater 10 through the pressurization of feed pump 14, and the water in tap-water preheater 10 is not heated
It is directly entered heating water tank 1, heating hot water in water tank 1 can be directly used for taking a shower;
(3) using soil-sewage as low-temperature heat source operational mode: opening compressor 6, sewage pump 16, feed pump 14, refrigerant
Flow process: refrigerant is flowed out by compressor 6, enters First Heat Exchanger 3 through the second triple valve 20, the second four-way valve 18 respectively,
Enter the second heat exchanger 4 through the second triple valve 20, the refrigerant that First Heat Exchanger 3 flows out is through the first four-way valve 17 and the second heat exchange
The refrigerant that device 4 flows out meets at the first triple valve 19, enters third using electric expansion valve 7, the first four-way valve 17 and exchanges heat
Device 5, the refrigerant that third heat exchanger 5 flows out are back in compressor 6 through the second four-way valve 18;Fan coil 2 and the first heat exchange
Water in 3 connecting pipe of device enters fan coil 2, exchanges heat with room air, reaches heating effect, and heating water tank 1 is changed with second
Water in the connecting pipe of hot device 4 enters heating water tank 1, exchanges heat with the cold water in water tank, reaches and prepare hot water purpose;Third
The water that heat exchanger 5 flows out enters sewage heat exchanger 9 through third triple valve 21 respectively, is directly heated by sewage;Through third triple valve
21 enter underground pipe 11, can be directly heated by ground, and the water that the water and underground pipe 11 that sewage heat exchanger 9 exports export meets at the 4th
Triple valve 22 enters third heat exchanger 5;Tap water enters tap-water preheater 10, tap water preheating through the pressurization of feed pump 14
Tap water in device 10 enters water heating case 1 after being directly heated by sewage, and heating hot water in water tank 1 can be directly used for taking a shower;It is dirty
Water enters in filter 15 through the pressurization of sewage pump 16, and foul water tank 8 is entered after filter sewage impurity, and foul water tank 8 heats sewage heat change
Trunk sewer is discharged to through drain valve 12 after water in device 9 and tap-water preheater 10;
Freeze it is simultaneous prepare hot-water mode be divided into ground can not accumulation of heat and ground can accumulation of heat both of which, as shown in Figure 3:
It (1) can not regenerative operation mode: opening compressor 6, feed pump 14, close sewage pump 11, refrigerant flows over
Journey: 4 → the first 19 → electric expansion valve of triple valve of compressor 6 → the second triple valve, 20 → the second heat exchanger, 7 → the first four-way valve
17 → First Heat Exchanger, 3 → the second 18 → compressor of four-way valve 6;;Water in fan coil 2 and 3 connecting pipe of First Heat Exchanger
It into fan coil 2, exchanges heat with room air, reaches refrigeration effect, in the connecting pipe for heating water tank 1 and the second heat exchanger 4
Water enter heating water tank 1, in water tank cold water exchange heat, reach and prepare hot water purpose;Tap water pressurizes through feed pump 14
Not heated to be directly entered heating water tank 1 into tap-water preheater 10, heating hot water in water tank 1 can be directly used for taking a shower;
It (2) can regenerative operation mode: compressor 6, feed pump 14 are opened, closes sewage pump 11, refrigerant flow process:
Refrigerant is flowed out by compressor 6, enters third heat exchanger 5 through the second triple valve 20, the second four-way valve 18 respectively;Through the second threeway
Valve 20 enters the second heat exchanger 4, and the refrigerant that third heat exchanger 5 flows out is flowed out through the first four-way valve 17 and the second heat exchanger 4
Refrigerant meets at the first triple valve 19, enters First Heat Exchanger 3 using electric expansion valve 7, the first four-way valve 17, first changes
The refrigerant that hot device 3 flows out is back in compressor 6 through the second four-way valve 18;Company between fan coil 2 and First Heat Exchanger 3
Water in adapter tube road enters the room fan coil 2, exchanges heat with room air, reaches refrigeration effect, heats water tank 1 and the second heat exchange
Water in the connecting pipe of device 4 enters heating water tank 1, exchanges heat with the cold water in water tank, reaches and prepare hot water purpose;Third is changed
The water that hot device 5 flows out enters underground pipe 11 through third triple valve 21, heat is discharged into accumulation of heat in soil, after accumulation of heat in underground pipe 11
Water enter third heat exchanger 5 through the 4th triple valve 22;Tap water enters tap-water preheater 10 through the pressurization of feed pump 14, from
The water come in water preheater 10 is not heated to be directly entered heating water tank 1, and heating hot water in water tank 1 can be directly used for taking a shower;
Be prepared separately hot-water mode be divided into using sewage as low-temperature heat source, using soil as low-temperature heat source, with soil-sewage be low
Temperature-heat-source Three models, as shown in Figure 4:
(1) using sewage as low-temperature heat source operational mode: opening compressor 6, sewage pump 16, feed pump 14, refrigerant flowing
Process: 4 → the first 19 → electric expansion valve of triple valve of compressor 6 → the second triple valve, 19 → the second heat exchanger, 7 → the first four-way
17 → third of valve heat exchanger, 5 → the second 18 → compressor of four-way valve 6;In the connecting pipe for heating water tank 1 and the second heat exchanger 4
Water enters heating water tank 1, exchanges heat with the cold water in water tank, reaches and prepare hot water purpose;The water that third heat exchanger 5 flows out is through the
Three triple valves 21 enter sewage heat exchanger 9, are directly heated by sewage, enter third heat exchanger through the 4th triple valve 22 after heating
5;Tap water enters tap-water preheater 10 through the pressurization of feed pump 14, and heating water tank 1, system are directly entered after being directly heated by sewage
Hot water can be directly used for taking a shower in boiler 1;Sewage enters in filter 15 through the pressurization of sewage pump 16, and sewage is filtered impurity
Enter foul water tank 8 afterwards, heats and be discharged to trunk sewer through drain valve 12 after the water in sewage heat exchanger 9 and tap-water preheater 10;
(2) using soil as low-temperature heat source operational mode: opening compressor 6, feed pump 14, close sewage pump 16, refrigerant
Flow process: 6 → the second triple valve of compressor, 20 → the second heat exchanger, 4 → the first 19 → electric expansion valve of triple valve 7 → the first
17 → third of four-way valve heat exchanger, 5 → the second 18 → compressor of four-way valve 6;Heat the connecting pipe of water tank 1 and the second heat exchanger 4
In water enter heating water tank 1, in water tank cold water exchange heat, reach and prepare hot water purpose;The water that third heat exchanger 5 flows out
Enter underground pipe 11 through third triple valve 21, enters First Heat Exchanger 5 through the 4th triple valve 22 after being heated by soil;Tap water
Enter tap-water preheater 10 through the pressurization of feed pump 14, the water in tap-water preheater 10 is not heated to be directly entered heating water tank
1, heating hot water in water tank 1 can be directly used for taking a shower;
(3) using soil-sewage as low-temperature heat source operational mode: opening compressor 6, sewage pump 16, feed pump 14, refrigerant
Flow process: 6 → the second triple valve of compressor, 20 → the second heat exchanger, 4 → the first 19 → electric expansion valve of triple valve 7 → the first
17 → third of four-way valve heat exchanger, 5 → the second 18 → compressor of four-way valve 6;Heat the connecting pipe of water tank 1 and the second heat exchanger 4
In water enter heating water tank 1, in water tank cold water exchange heat, reach and prepare hot water purpose;The water that third heat exchanger 5 flows out
Enter sewage heat exchanger 9 through third triple valve 21 respectively, directly heated by sewage, enters underground pipe 11 through third triple valve 21,
It can be directly heated by ground, the water that the water and underground pipe 11 that sewage heat exchanger 9 exports export meets at the 4th triple valve 22, enters
Third heat exchanger 5;Tap water enters tap-water preheater 10 through the pressurization of feed pump 14, and system is directly entered after being directly heated by sewage
Boiler 1, heating hot water in water tank 1 can be directly used for taking a shower;Sewage enters in filter 15 through the pressurization of sewage pump 16, sewage quilt
Enter foul water tank 8 after impurity screening, foul water tank 8 heats after the water in sewage heat exchanger 9 and tap-water preheater 10 through drain valve
12 are discharged to trunk sewer;
Separate refrigeration operational mode, as shown in Figure 5: opening compressor 6, close feed pump 14, sewage pump 11, refrigerant stream
Dynamic process: 6 → the second triple valve of compressor, 20 → the second 18 → third of four-way valve heat exchanger, 5 → the first four-way valve the 17 → the 1st
19 → electric expansion valve of port valve, 7 → the first 17 → First Heat Exchanger of four-way valve, 3 → the second 18 → compressor of four-way valve 6;Fan unit
The water in connecting pipe between pipe 2 and First Heat Exchanger 3 enters the room fan coil 2, exchanges heat with room air, reaches refrigeration
Effect;The water that third heat exchanger 5 flows out enters sewage heat exchanger 9 through third triple valve 21 respectively, rejects heat to sewage, passes through
Third triple valve 21 enters underground pipe 11, heat is discharged into accumulation of heat in soil, the water that sewage heat exchanger 9 exports goes out with underground pipe 11
The water of mouth meets at the 4th triple valve 22, enters third heat exchanger 5;Sewage enters in filter 15 through the pressurization of sewage pump 16,
Sewage is entered foul water tank 8 after impurity screening, foul water tank 8 passes through after heating the water in sewage heat exchanger 9 and tap-water preheater 10
Drain valve 12 is discharged to trunk sewer;
Independent heat supply is divided into using sewage as low-temperature heat source, using soil as low-temperature heat source, using soil-sewage as low-temperature heat source three
Kind mode, as shown in Figure 6:
(1) using sewage as low-temperature heat source operational mode: opening compressor 6, sewage pump 16, close feed pump 14, refrigerant
Flow process: 6 → the second triple valve of compressor, 20 → the second 18 → First Heat Exchanger of four-way valve, 3 → the first four-way valve 17 → the first
19 → electric expansion valve of triple valve, 7 → the first 17 → third of four-way valve heat exchanger, 5 → the second 18 → compressor of four-way valve 6;Blower
Water in coil pipe 2 and 3 connecting pipe of First Heat Exchanger enters the room fan coil 2, exchanges heat with room air, reaches heating effect
Fruit;The water of third heat exchanger outflow enters sewage heat exchanger 9 through third triple valve 21, is directly heated by sewage, the water after heating
Third heat exchanger 5 is entered through the 4th triple valve 22;Sewage enters in filter 15 through the pressurization of sewage pump 16, and sewage is filtered
Enter foul water tank 8 after impurity, through sewage after the water heating sewage heat exchanger 9 in foul water tank 8 and the water in tap-water preheater 10
Valve 12 is discharged to trunk sewer;
(2) using soil as low-temperature heat source operational mode: opening compressor 6, close feed pump 14, sewage pump 16, refrigerant
Flow process: 6 → the second triple valve of compressor, 20 → the second 18 → First Heat Exchanger of four-way valve, 3 → the first four-way valve 17 → the first
19 → electric expansion valve of triple valve, 7 → the first 17 → third of four-way valve heat exchanger, 5 → the second 18 → compressor of four-way valve 6;Blower
Water in coil pipe 2 and 3 connecting pipe of First Heat Exchanger enters the room fan coil 2, exchanges heat with room air, reaches heating effect
Fruit;The water that third heat exchanger 5 flows out enters underground pipe 11 through third triple valve 21, through the 4th triple valve after being heated by soil heat source
22 enter third heat exchanger 5;
(3) using soil-sewage as low-temperature heat source operational mode: opening compressor 6, sewage pump 16, close feed pump 14, system
Cryogen flow process: 6 → the second triple valve of compressor, 20 → the second 18 → First Heat Exchanger of four-way valve, 3 → the first four-way valve 17 →
First 19 → electric expansion valve of triple valve, 7 → the first 17 → third of four-way valve heat exchanger, 5 → the second 18 → compressor of four-way valve 6;
Water in fan coil 2 and 3 connecting pipe of First Heat Exchanger enters fan coil 2, exchanges heat with room air, reaches heating effect
Fruit;The water that third heat exchanger 5 flows out enters sewage heat exchanger 9 through third triple valve 21 respectively, is directly heated by sewage;Through third
Triple valve 21 enters underground pipe 11, can be directly heated by ground, and the water that the water that sewage heat exchanger 9 exports is exported with underground pipe 11 converges
In the 4th triple valve 22, third heat exchanger 5 is entered;Sewage enters in filter 15 through the pressurization of sewage pump 16, and filter sewage is miscellaneous
Enter foul water tank 8 after matter, foul water tank 8 is discharged to after heating the water in sewage heat exchanger 9 and tap-water preheater 10 through drain valve 12
Trunk sewer;
The invention also discloses following technical effects:
The present invention is complementary using the application of the low-temperature heat sources such as air, sewage and soil or heat sink, by each low-temperature heat source or
Flexible switching between heat sink can satisfy the demand of stable heating in building, air-conditioning cooling supply and domestic hot-water's preparation, wherein
Winter using soil source and source of sewage as low-temperature heat source, to indoor heating and prepares hot water;Summer using room air as low-temperature heat source,
Using sewage as the medium for adjusting backheat amount to soil concurrent heating, realize that cooling in summer and domestic hot-water's preparation, the present invention can drop
The energy consumption of low building heat supplying and cooling supply, and can be realized a tractor serves several purposes, improve the utilization rate of equipment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.