CN109579106A - A kind of heating system based on multi-temperature zone mixing tank - Google Patents
A kind of heating system based on multi-temperature zone mixing tank Download PDFInfo
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- CN109579106A CN109579106A CN201811380364.1A CN201811380364A CN109579106A CN 109579106 A CN109579106 A CN 109579106A CN 201811380364 A CN201811380364 A CN 201811380364A CN 109579106 A CN109579106 A CN 109579106A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
Abstract
A kind of heating system based on multi-temperature zone mixing tank provided by the invention, mixing tank can be divided into high-temperature region, middle warm area and low-temperature space, and low-temperature space is heated using net for air-source heat pump units, and middle warm area is heated using water source heat pump units, step heating is formed, hot water effluent's temperature is more stable.The waste heat recycling of low-grade heat source is carried out by the way of plate heat exchanger and water source heat pump units combination for 25 DEG C of low-temperature sewages of production line, it is recycled for 85 DEG C of high temperature plumbing drains of production line using the waste heat that plate heat exchanger directly carries out high-grade heat source, waste heat recovery efficiency is high, and heating system whole efficiency is high.Using supplement water of the cold water tank storage cold water as mixing tank, the heating agent that a large amount of hot water use daytime as heating system can be stored during night paddy electricity low price using hot-water cylinder, it is poor to balance the supply and demand of night power grid, saves the operating cost of heating system.
Description
Technical field
The invention belongs to Thermal Power Engineering Fields, are related to a kind of heating system, and in particular to one kind is based on multi-temperature zone mixing water
The heating system of case.
Background technique
Currently, China's using energy source remains that utilization efficiency is low, deficiency in economic performance, big main of eco-environmental pressure
Problem, energy-saving and emission-reduction reduce energy consumption, improve the important content that comprehensive utilization of energy rate is planned as energy development strategy, are solutions
The certainly fundamental way of energy problem, China, in the status first developed.The target realized energy-saving and emission-reduction, improve energy utilization rate
Rely primarily on industrial circle.Industrial afterheat recovery is using being the big measure of industrial and mining enterprises' energy-saving and emission-reduction one, and the energy saving space is big, effectively
Using waste heat bigger benefit can be created for enterprise.The industrial afterheat recovery measure that industrial and mining enterprises have carried out is primarily directed to Gao Pin
Position industrial exhaust heat, the heat of high-grade industrial exhaust heat is directly recycled by heat exchanger, and low-grade industrial exhaust heat is mostly direct
It is discarded.
Heat pump is a kind of efficient energy-saving device for making full use of low grade heat energy, and air source heat pump is a kind of shape of heat pump
Formula makes heat flow to from low level heat energy air the energy saver of high-grade heat source using high-grade electric energy.Water resource heat pump is heat
Another form of pump is the absorption low grade heat energy resource from underground water, river, lake or cesspool etc., by few
The high-grade electric energy of amount inputs, and realizes low grade heat energy to high-grade heat energy transfer.In winter, since air themperature is lower, and
Coolant-temperature gage is higher, and water source heat pump units have better heating effect, and the leaving water temperature of condenser can be than air source heat pump machine
The height of group.Therefore two-step heating mode can be formed by net for air-source heat pump units and water source heat pump units, steps up heat supply Jie
Matter temperature, water source heat pump units can low-grade industrial exhaust heat to be discharged on recovery process production line, and hot-water cylinder is combined to store
The modes such as heat improve the economy of heating system.
Summary of the invention
The purpose of the present invention is to provide a kind of heating system based on multi-temperature zone mixing tank, by plate heat exchanger and
Water source heat pump units are respectively recycled the high-grade industrial exhaust heat of production line and low-grade industrial exhaust heat, and adopt
With the form of net for air-source heat pump units and water source heat pump units two-step heating, stable in outlet water temperature not only ensure that, but also improve
The whole energy rate of heating system, in combination with the application of cold water tank and hot-water cylinder, one side cold water tank stores cold water as confession
Hot systems supplement spare heating agent, and another aspect hot-water cylinder stores hot water as heating system daytime during night paddy electricity low price
The heating agent used improves the economy of heating system.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows:
A kind of heating system based on multi-temperature zone mixing tank, it is characterised in that: the box house of mixing tank is by high temperature area
Baffle and middle low-temperature space barrier partitions are opened, and mixing tank can be divided into high-temperature region, middle warm area and low-temperature space, high temperature area baffle and
There are the channels of overflow hot water between top of the box at the top of middle low-temperature space baffle；
The high-temperature region of mixing tank is connected to the first heat supply water pump, hot water supplying pump and second butterfly valve；First heat supply water pump connects again
Then it handles official business heating terminal, office heating terminal reconnects the low-temperature space of mixing tank；Hot water supplying pump reconnects hot water
Tank, hot-water cylinder reconnect first butterfly valve, and first butterfly valve and second butterfly valve are connected to the second heat supply water pump, and the second heat supply water pump connects
Then production line, the outlet pipeline of production line are divided into three tunnels, respectively connected the first draining pump, the second draining pump
(19) and the 4th water circulating pump；
First draining pump is connected to the first plate heat exchanger, and the ipsilateral outlet pipeline of the first plate heat exchanger is connected to sewage treatment
Equipment, the heteropleural outlet pipeline of the first plate heat exchanger are connected to third water circulating pump, and third water circulating pump reconnects water source
The evaporator of heat pump unit, the evaporator of water source heat pump units reconnect the heteropleural inlet pipeline of the first plate heat exchanger, water
The leaving condenser water piping connection of source heat pump unit the middle warm area of mixing tank, the middle warm area of mixing tank reconnect second
Water circulating pump, second circulation water pump reconnect the condenser of water source heat pump units；
Second draining pump is connected to the second plate heat exchanger, and the ipsilateral outlet pipeline of the second plate heat exchanger is connected to sewage treatment
Equipment, the heteropleural outlet pipeline of the second plate heat exchanger are connected to the low-temperature space of mixing tank, the heteropleural of the second plate heat exchanger
Inlet pipeline is connected to third butterfly valve；
4th water circulating pump is connected to the low-temperature space of mixing tank；
Net for air-source heat pump units is connected to the low-temperature space of mixing tank, and the low-temperature space of mixing tank reconnects first circulation water
Pump, first circulation water pump reconnect net for air-source heat pump units；
Water purification apparatus is connected to small pump, and small pump respectively connected third butterfly valve and the 4th butterfly valve, and the 4th butterfly valve connects again
Then cold water tank, cold water tank reconnect cold water feed pump, and cold water feed pump reconnects the low-temperature space of mixing tank.
The net for air-source heat pump units leaving water temperature is 35 DEG C, constantly heats the low temperature in the low-temperature space of mixing tank
The channel of water, hot water after heating therefrom low-temperature space baffle top overflows to middle warm area.
The leaving water temperature of the condenser of the water source heat pump units is 45 DEG C, in the middle warm area for constantly heating mixing tank
Middle warm water, the channel on hot water after heating therefrom high-temperature region baffle top overflows to high-temperature region.
The production line outlet pipeline of the first draining pump connection is plumbing drain, and leaving water temperature is 25 DEG C.
The production line outlet pipeline of the second draining pump connection is plumbing drain, and leaving water temperature is 85 DEG C.
Compared with prior art, the invention has the benefit that
A kind of heating system based on multi-temperature zone mixing tank of the invention is used for 25 DEG C of low-temperature sewages of production line
Plate heat exchanger and the mode of water source heat pump units combination carry out the waste heat recycling of low-grade heat source, for the 85 of production line
DEG C high temperature sewage directly carries out the waste heat recycling of high-grade heat source using plate heat exchanger, and the residual heat resources use of different temperatures is not
Same way of recycling, improves the whole efficiency of waste heat recovery efficiency and heating system.
Further, the storage and conveying of heating agent are carried out using the mixing tank of multi-temperature zone, mixing tank uses high temperature
Housing interior volume is divided into high-temperature region, middle warm area and low-temperature space, the low temperature of mixing tank by area's baffle and middle low-temperature space baffle
Area carries out being heated to 35 DEG C using net for air-source heat pump units, and the middle warm area of mixing tank is heated to using water source heat pump units
45 DEG C, from step heating mode is formd, the leaving water temperature of heating agent is more stable, and heating efficiency is higher.
Further, the supplement water using cold water tank storage cold water as mixing tank, can be in night paddy using hot-water cylinder
The heating agent that a large amount of hot water use daytime as heating system is stored during electric low price, balances night power grid supply and demand drop, is saved
The operating cost of heating system, and then the economy of heating system operation is improved, meanwhile, cold water tank carries out moisturizing and hot water
The operating mode that tank carries out water more can guarantee the water balance inside mixing tank.
Detailed description of the invention
Fig. 1 is a kind of heating system schematic diagram based on multi-temperature zone mixing tank of the invention；
Fig. 2 is a kind of mixing tank schematic diagram of heating system based on multi-temperature zone mixing tank of the invention；
Wherein, 1 is hot-water cylinder, and 2 be cold water tank, and 3 be cold water feed pump, and 4 be first circulation water pump, and 5 be office heating terminal, 6
It is hot water supplying pump for first butterfly valve, 7,8 be the first heat supply water pump, and 9 be second butterfly valve, and 10 be the second heat supply water pump, and 11 be mixed
Heshui case, 111 be cabinet, and 112 be high-temperature region, and 113 be high temperature area baffle, and 114 be middle warm area, and 115 be middle low-temperature space baffle,
116 be low-temperature space, and 12 be second circulation water pump, and 13 be water source heat pump units, and 14 be production line, and 15 be third recirculated water
Pump, 16 be the first plate heat exchanger, and 17 be the first draining pump, and 18 be the second plate heat exchanger, and 19 be the second draining pump, and 20 be the
Four water circulating pumps, 21 be water purification apparatus, and 22 be sewage disposal device, and 23 be small pump, and 24 be third butterfly valve, and 25 be air
Source heat pump unit, 26 be the 4th butterfly valve.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.
The total design of the present invention is: for the production line residual heat resources of different temperatures, using different ways of recycling,
The whole efficiency for improving waste heat recovery efficiency and heating system carries out the storage of heating agent and defeated using the mixing tank of multi-temperature zone
It send, low-temperature space is heated using net for air-source heat pump units, and middle warm area is using water source heat pump units heating, from foring step heated mould
The leaving water temperature of formula, heating agent is more stable, and heating efficiency is higher, and stores hot water during paddy electricity low price in conjunction with hot-water cylinder.
For the technology contents and construction and purpose that the present invention will be described in detail, it is specifically introduced with reference to the accompanying drawing.
By Fig. 1 and Fig. 2 it is found that a kind of heating system based on multi-temperature zone mixing tank, it is characterised in that: mixing tank 11
Cabinet 111 inside separated by high temperature area baffle 113 and middle low-temperature space baffle 115, mixing tank can be divided into high-temperature region
112, the top of middle warm area 114 and low-temperature space 116, high temperature area baffle 113 and middle low-temperature space baffle 115 is and at the top of cabinet 4
Between there are the channels of overflow hot water；
The high-temperature region 112 of mixing tank 11 is connected to the first heat supply water pump 8, hot water supplying pump 7 and second butterfly valve 9；First heat supply
Water pump 8 reconnects office heating terminal 5, and office heating terminal 5 reconnects the low-temperature space 116 of mixing tank 11；Hot water is given
Water pump 7 reconnects hot-water cylinder 1, and hot-water cylinder 1 reconnects first butterfly valve 6, and first butterfly valve 6 and second butterfly valve 9 are connected to second
Heat supply water pump 10, the second heat supply water pump 10 are connected to production line 14, and the outlet pipeline of production line 14 is divided into three tunnels, point
It is not connected to the first draining pump 17, the second draining pump 19 and the 4th water circulating pump 20；
First draining pump 17 is connected to the first plate heat exchanger 16, and the ipsilateral outlet pipeline of the first plate heat exchanger 16 is connected to dirt
Water treatment facilities 22, the heteropleural outlet pipeline of the first plate heat exchanger 16 are connected to third water circulating pump 15, third water circulating pump
15 reconnect the evaporator of water source heat pump units 13, and the evaporator of water source heat pump units 13 reconnects the first plate heat exchanger
16 heteropleural inlet pipeline, the leaving condenser water piping connection of water source heat pump units 13 middle warm area 114 of mixing tank 11, mix
The middle warm area 114 of Heshui case 11 reconnects second circulation water pump 12, and second circulation water pump 12 reconnects water source heat pump units
13 condenser；
Second draining pump 19 is connected to the second plate heat exchanger 18, and the ipsilateral outlet pipeline of the second plate heat exchanger 18 is connected to dirt
The heteropleural outlet pipeline of water treatment facilities 22, the second plate heat exchanger 18 is connected to the low-temperature space 116 of mixing tank 11, the second plate
The heteropleural inlet pipeline of formula heat exchanger 18 is connected to third butterfly valve 24；
4th water circulating pump 20 is connected to the low-temperature space 116 of mixing tank 11；
Net for air-source heat pump units 25 is connected to the low-temperature space 116 of mixing tank 11, and the low-temperature space 116 of mixing tank 11 reconnects
First circulation water pump 4, first circulation water pump 4 reconnect net for air-source heat pump units 25；
Water purification apparatus 21 is connected to small pump 23, and small pump 23 respectively connected third butterfly valve 24 and the 4th butterfly valve 26, the
Four butterfly valves 26 reconnect cold water tank 2, and cold water tank 2 reconnects cold water feed pump 3, and cold water feed pump 3 reconnects mixing water
The low-temperature space 116 of case 11.
25 leaving water temperature of net for air-source heat pump units is 35 DEG C, constantly heats the low temperature in the low-temperature space 116 of mixing tank 11
The channel of water, hot water after heating therefrom 115 top of low-temperature space baffle overflows to middle warm area 114；Water source heat pump units 13 it is cold
The leaving water temperature of condenser is 45 DEG C, constantly heats the middle warm water in the middle warm area 114 of mixing tank 11, the hot water after heating is therefrom
The channel on 113 top of high-temperature region baffle overflows to high-temperature region 112；14 outlet pipeline of production line of first draining pump 7 connection
For plumbing drain, leaving water temperature is 25 DEG C；14 outlet pipeline of production line of second draining pump 19 connection is plumbing drain, out
Coolant-temperature gage is 85 DEG C.
Specific implementation process of the invention is as follows:
A kind of heating system based on multi-temperature zone mixing tank, first circulation water pump 4 will be in the low-temperature spaces 116 of mixing tank 11
For low temperature water-driven to net for air-source heat pump units 25, net for air-source heat pump units 25 absorbs heat water at low temperature from Cryogenic air,
Water at low temperature is heated to 35 DEG C of low-temperature spaces 116 for flowing back into mixing tank 11 again, and the higher hot water of temperature becomes smaller meeting due to density
Rise, the middle warm area 114 of mixing tank 11 is overflowed to by the channel of middle 115 top of low-temperature space baffle；Second circulation water pump 12
By the condenser of the medium temperature water-driven in the middle warm area 114 of mixing tank 11 to water source heat pump units 13, water source heat pump units 13
Condenser heating in warm water, middle warm water is heated to 45 DEG C of middle warm areas 114 for flowing back into mixing tank 11 again, and temperature is higher
Hot water can rise since density becomes smaller, and the high-temperature region of mixing tank 11 is overflowed to by the channel of 113 top of high temperature area baffle
112。
First heat supply water pump 8 carries out the high temperature water-driven in the high-temperature region 112 of mixing tank 11 to office heating terminal 5
Heat release, realizes office heating, and the low-temperature space 116 for then flowing back into mixing tank 11 again is heated.
When heating system only carries out heat supply to production line 14, when without accumulation of heat, first butterfly valve 6 is closed, the second butterfly
Valve 9 is opened, and third butterfly valve 24 is opened, and the 4th butterfly valve 26 is closed；Second heat supply water pump 10 will be in the high-temperature region 112 of mixing tank 11
High temperature water-driven to production line 14, high-temperature water is divided into three tunnels after production line 14 participates in production and is discharged.
First draining pump 17 drives 25 DEG C of low-temperature sewages of production line 14 to enter heat release in the first plate heat exchanger 16,
Then sewage disposal device 22 is flowed into, the medium in the heteropleural pipeline of the first plate heat exchanger 16 is heated, is then followed by third
Ring water pump 15 drives to heat release in the evaporator of water source heat pump units 13, and the medium after heat release is back to the first plate heat exchanger again
In 16, the vaporizer side of water source heat pump units 13 absorbs cryogenic media heat, produces in the condenser side of water source heat pump units 13
High temperature heating agent.
Second draining pump 19 drives 85 DEG C of high temperature sewage of production line 14 to enter heat release in the second plate heat exchanger 18,
Then sewage disposal device 22 is flowed into, the water purification in the heteropleural pipeline of the second plate heat exchanger 18 is heated, then by small pump 23
It is heated again in driving to the low-temperature space 116 of mixing tank 11, wherein water purification carries out tap water by water purification apparatus 22
It is produced after processing.
The water purification that 4th water circulating pump 20 driving production line 14 is discharged is back in the low-temperature space 116 of mixing tank 11
It is heated again.
When heating system needs to store cold water, the 4th butterfly valve 26 is opened, the driving of small pump 23 comes from water purification apparatus
22 water purification to cold water tank 2 is stored.
When heating system needs to store hot water during night paddy electricity low price, hot water supplying pump 7 drives mixing tank 11
High-temperature region 112 in hot water to hot-water cylinder 1 in stored, at this moment, mixing tank 11 needs additional amount of makeup water, and cold water is given
Water pump 3 again will be in the water-driven to the low-temperature space 116 of mixing tank 11 that stored in cold water tank 2.During the day, first butterfly valve is opened
6, the hot water in hot-water cylinder 1, which is driven by the second heat supply water pump 10 to production line 14, to be participated in producing.
Claims (5)
1. a kind of heating system based on multi-temperature zone mixing tank, it is characterised in that: the cabinet (111) of mixing tank (11) is internal
It is separated by high temperature area baffle (113) and middle low-temperature space baffle (115), mixing tank can be divided into high-temperature region (112), medium temperature
It is pushed up with cabinet (4) at the top of area (114) and low-temperature space (116), high temperature area baffle (113) and middle low-temperature space baffle (115)
There are the channels of overflow hot water between portion；
The high-temperature region (112) of mixing tank (11) is connected to the first heat supply water pump (8), hot water supplying pump (7) and second butterfly valve
(9)；First heat supply water pump (8) reconnects office heating terminal (5), and office heating terminal (5) reconnects mixing tank
(11) low-temperature space (116)；Hot water supplying pump (7) reconnects hot-water cylinder (1), and hot-water cylinder (1) reconnects first butterfly valve
(6), first butterfly valve (6) and second butterfly valve (9) are connected to the second heat supply water pump (10), and the second heat supply water pump (10) is connected to technique
The outlet pipeline of production line (14), production line (14) is divided into three tunnels, respectively connected the first draining pump (17), the second draining
Pump (19) and the 4th water circulating pump (20)；
First draining pump (17) is connected to the first plate heat exchanger (16), and the ipsilateral outlet pipeline of the first plate heat exchanger (16) connects
Then sewage disposal device (22), the heteropleural outlet pipeline of the first plate heat exchanger (16) are connected to third water circulating pump (15),
Third water circulating pump (15) reconnects the evaporator of water source heat pump units (13), and the evaporator of water source heat pump units (13) connects again
Then the heteropleural inlet pipeline of the first plate heat exchanger (16), the leaving condenser water piping connection of water source heat pump units (13) it is mixed
The middle warm area (114) of the middle warm area (114) of Heshui case (11), mixing tank (11) reconnects second circulation water pump (12), the
Two-cycle pump (12) reconnects the condenser of water source heat pump units (13)；
Second draining pump (19) is connected to the second plate heat exchanger (18), and the ipsilateral outlet pipeline of the second plate heat exchanger (18) connects
Then the heteropleural outlet pipeline of sewage disposal device (22), the second plate heat exchanger (18) is connected to the low temperature of mixing tank (11)
Area (116), the heteropleural inlet pipeline of the second plate heat exchanger (18) are connected to third butterfly valve (24)；
4th water circulating pump (20) is connected to the low-temperature space (116) of mixing tank (11)；
Net for air-source heat pump units (25) is connected to the low-temperature space (116) of mixing tank (11), the low-temperature space of mixing tank (11)
(116) it reconnects first circulation water pump (4), first circulation water pump (4) reconnects net for air-source heat pump units (25)；
Water purification apparatus (21) is connected to small pump (23), and small pump (23) respectively connected third butterfly valve (24) and the 4th butterfly
Valve (26), the 4th butterfly valve (26) reconnect cold water tank (2), and cold water tank (2) reconnects cold water feed pump (3), cold water water supply
Pump (3) reconnects the low-temperature space (116) of mixing tank (11).
2. a kind of heating system based on multi-temperature zone mixing tank according to claim 1, it is characterised in that: the sky
Air supply heat pump unit (25) leaving water temperature is 35 DEG C, constantly the water at low temperature in the low-temperature space (116) of heating mixing tank (11), is risen
The channel on hot water after temperature therefrom low-temperature space baffle (115) top overflows to middle warm area (114).
3. a kind of heating system based on multi-temperature zone mixing tank according to claim 1, it is characterised in that: the water
The leaving water temperature of the condenser of source heat pump unit (13) is 45 DEG C, constantly in the middle warm area (114) of heating mixing tank (11)
The channel of middle warm water, hot water after heating therefrom high-temperature region baffle (113) top overflows to high-temperature region (112).
4. a kind of heating system based on multi-temperature zone mixing tank according to claim 1, it is characterised in that: described
Production line (14) outlet pipeline of one draining pump (7) connection is plumbing drain, and leaving water temperature is 25 DEG C.
5. a kind of heating system based on multi-temperature zone mixing tank according to claim 1, it is characterised in that: described
Production line (14) outlet pipeline of two draining pumps (19) connection is plumbing drain, and leaving water temperature is 85 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380364.1A CN109579106B (en) | 2018-11-20 | 2018-11-20 | Heating system based on multi-temperature-zone mixed water tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380364.1A CN109579106B (en) | 2018-11-20 | 2018-11-20 | Heating system based on multi-temperature-zone mixed water tank |
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| CN109579106A true CN109579106A (en) | 2019-04-05 |
| CN109579106B CN109579106B (en) | 2021-06-18 |
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ID=65923272
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| CN201246924Y (en) * | 2008-06-23 | 2009-05-27 | 昆明铁路局科学技术研究所 | Air source heat pump and middle and high temperature water source heat pump combining heating apparatus |
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| CN109579106B (en) | 2021-06-18 |
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