A kind of municipal administration heating system, heat supply method and charging method
Technical field
The present invention relates to Heating,Ventilating and Air Conditioning technical field more particularly to a kind of municipal heating systems and charging method.
Background technology
Conventional municipal heating system is prepared in thermal energy and supply center is by the energy of the other forms such as fossil fuel, industrial exhaust heat
Source is converted to thermal energy, and by media such as steam or water along pipeline to each heat supply point.Medium can lose in transmission process
A large amount of heat, causes energy waste.In addition, based on conventional municipal heating system using charging mode mainly comprising according to building
Area collects the charges, collects basic expense according to construction area and in addition collect the charges according to heat, idle house is collected
Heat energy loss compensation etc..These charging modes can not ensure heat that the expense of all users payment is actually used with it at just
Than there are unreasonable charges phenomenons.
Earth source heat pump be it is a kind of using superficial-layer geothermal energy carry out heating and refrigerating eco-friendly power source utilize system, have efficiently section
Energy, the advantages that reliable and stable, non-environmental-pollution, maintenance cost is low, service life is long, renewable.Also, what earth source heat pump used
Low energy heat source (such as underground pipe) is usually located near heat supply point, and heat transfer medium need not transmit at a distance, can effectively be avoided
Energy waste.It is built however, existing earth source heat pump is chiefly used in central heating of a small range, such as workshop, office building, school etc.
It builds;And it since earth source heat pump needs to occupy larger underground area to provide circulatory system heat exchange, can not fully meet sometimes
The hot-cool demand of user is needed using other traditional low-temperature receivers or heat source supplement energy supply.
Therefore, the advantages of how making full use of earth source heat pump reduces the energy loss of municipal heating system and charging is made to close
Physics and chemistry becomes field of heating ventilation air conditioning technical problem urgently to be resolved hurrily.
Invention content
The technical problem to be solved in the present invention is to provide a kind of municipal heating system, which makes full use of reproducible
Ground energy heat source carrys out heat supply, effectively reduces energy waste.The present invention additionally provides the heat supply based on the municipal administration heating system simultaneously
Method and charging method change the charging mode of conventional municipal heat supply, are that charging is more reasonable.
A kind of municipal heating system according to the present invention, comprising ground energy heat source, earth source heat pump unit, first circulation water pump,
Central heat source, heat exchanger, second circulation water pump, motor regulated valve and end heating equipment, wherein
Earth source heat pump unit include evaporator and condenser, evaporator include be respectively connected to ground can heat source water supply line and
The evaporator water inlet and evaporator water outlet of geothermal energy resources water return pipeline, condenser include to be connected to by first circulation water pump
The condenser water inlet of the end water return pipeline of end heating equipment and the end water supply line for being connected to end heating equipment
Leaving condenser water mouth;
Heat exchanger includes primary side and secondary side, and primary side includes to be respectively connected to central heat source water supply line and concentration heat
The primary side water inlet and primary side water outlet of source water return pipeline, secondary side include to be connected to end by second circulation water pump to adopt
The secondary side of the secondary side water inlet of the end water return pipeline of heating equipment and the end water supply line for being connected to end heating equipment
Water outlet;And
Motor regulated valve is set between heat exchanger and second circulation water pump.
Further, the first energy meter is provided between condenser water inlet and first circulation water pump, and secondary side enters
The second energy meter is provided between the mouth of a river and second circulation water pump.
Further, energy heat source in ground is underground pipe or the ground energy heat source of other forms.
Further, heat exchanger is plate heat exchanger or the heat exchanger of other forms.
A kind of heat supply method according to the present invention based on ground energy heat supply, and selectively turns on motorized adjustment
Valve is to enable central heat source auxiliary heating.
Further, it when the water temperature in the water return pipeline of end continues 10min-30min less than 35 DEG C -40 DEG C, opens automatically
Open motor regulated valve.
Further, when the instantaneous heat quantity that the first energy meter is shown reaches ground energy heat supply maximum value, and end return water
When continuing 10min-30min water temperature drops in pipeline, motor regulated valve is automatically turned on.
Further, automatic to close when the water temperature in the water return pipeline of end continues 10min-30min higher than 45 DEG C -50 DEG C
Close motor regulated valve.
Further, user is turned on and off motor regulated valve manually.
A kind of charging method according to the present invention, the actual use heat detected based on the first energy meter and the second energy meter
Amount is collected the charges.
Due to using the technology described above, the present invention has the following advantages that compared with prior art:
(1) it is energy saving, reliable and stable, acyclic to take full advantage of ground energy heat source high-efficiency based on ground energy heat supply by the present invention
The advantages that border is polluted, maintenance cost is low, service life is long, renewable.
(2) ground energy heat source used by municipal heating system of the invention can be distributed near each heat supply point, without heat transfer
Medium transmits at a distance, effectively prevents energy waste.
(3) municipal heating system of the invention supplements low energy heat source using traditional central heat source, has to realize
Effect ground combined heat, and central heat source heat supply can further ensure that the heat supply for meeting user as a kind of heat supply mode of maturation
Demand.
(4) municipal heating system of the invention makes full use of the existing central heat source of existing municipal heating system, effectively drops
Low totle drilling cost.
(5) heat supply method of the invention allows selectively automatic/hand enabling central heat source auxiliary heat supplying, disclosure satisfy that
The different demands of different user.
(6) charging mode of the invention is collected the charges according to actual use heat, fairer and more reasonable.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the following description of the accompanying drawings of embodiments
Obviously it and is readily appreciated that, wherein:
Fig. 1 is the schematic diagram of one embodiment of municipal heating system according to the present invention.
Reference sign:
1 earth source heat pump unit, 11 leaving condenser water mouths, 12 condenser water inlets, 13 evaporator water outlets, 14 evaporators enter
The mouth of a river, 2 heat exchangers, 21 secondary side water inlets, 22 secondary side water outlets, 23 primary side water inlets, 24 primary side water outlets, 3
One water circulating pump, 31 first circulation pump outlets, 32 first circulation water pump water inlets, 4 second circulation water pumps, 41 second circulations
Pump outlet, 42 second circulation water pump water inlets, 5 first energy meters, 51 first energy meter water outlets, 52 first energy are included in
The mouth of a river, 6 second energy meters, 61 second energy meter water outlets, 62 second energy meter water inlets, 7 motor regulated valves, 71 valves go out
The mouth of a river, 72 valve water inlets, 8 ground energy heat sources, 81 low energy heat source water supply lines, 82 ground energy heat source water return pipelines, 9 central heat sources,
91 central heat source water supply lines, 92 central heat source water return pipelines, 10 end heating equipments, 101 end water supply lines, 102 ends
Water return pipeline.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
Fig. 1 shows the schematic diagram of one embodiment of municipal heating system according to the present invention.In this embodiment, municipal administration supplies
Hot systems are totally comprising first be made of ground energy heat source 8, earth source heat pump unit 1, the first energy meter 5 and first circulation water pump 3
Group heat donor passage, and by central heat source 9, heat exchanger 2,4 structure of the second energy meter 6, motor regulated valve 7 and second circulation water pump
At second group of heat donor passage.Two groups of heat donor passage joints are that end heating equipment 10 provides heat transfer medium, and the present invention is with hot water
For.
Specifically, in first group of heat donor passage, earth source heat pump unit 1 includes evaporator and condenser.Wherein, evaporator
Evaporator water inlet 14 and evaporator water outlet 13 respectively can heat source with the ground energy heat source water supply line 81 of ground energy heat source 8 and ground
Water return pipeline 82 is connected;The end that the condenser water inlet 12 of condenser passes through first circulation water pump 3 and end heating equipment 10
End water return pipeline 102 is connected, and leaving condenser water mouth 11 is then connected with the end water supply line 101 of end heating equipment 10.
Hot water from ground energy heat source 8 carries out heat exchange with the cold water from end heating equipment 10 in earth source heat pump unit 1, so that
After heat exchange gained cold water along ground can heat source water return pipeline 82 return ground can heat source 8, and gained hot water is along end feed pipe after exchanging heat
Road 101 flows into end heating equipment 10 and provides heat to the user.Further, the first energy meter water inlet of the first energy meter 5
52 and first energy meter water outlet 51 connect respectively with first circulation pump outlet 31 and condenser water inlet 12, to detect use
The actual heat that family uses.First circulation water pump water inlet 23 is connect with end water return pipeline 102, with for end water return pipeline
The flowing of cold water provides power in 102.
In the present invention, ground energy heat source 9 is set to around each heat supply point and suitable each heat supply point can be taken residing certainly
Any form of right environment, for example, the closed systems such as ground energy heat source, such as vertical underground pipe, horizontal underground pipe, underwater pipe laying,
Or the open system etc. using water source.
In second group of heat donor passage, heat exchanger 2 can select heat exchanger form commonly used in the art, such as plate-type heat-exchange
Device, it includes primary sides and secondary side.Wherein, the primary side water inlet 23 of primary side and primary side water outlet 24 respectively with concentration
The central heat source water supply line 91 of heat source 9 is connected with central heat source water return pipeline 92;The secondary side water inlet 21 of secondary side is logical
Second circulation water pump 4 is crossed with the end water return pipeline 102 of Mu Duan heating equipments 10 to be connected, secondary side water outlet 22 then with end
The end water supply line 101 of heating equipment 10 is connected.Hot water from central heat source 9 with from the cold of end heating equipment 10
Water carries out heat exchange in heat exchanger 4, so that gained cold water returns to central heat source 9 along central heat source water return pipeline 9 after heat exchange,
And gained hot water provides heat to the user along the inflow end heating equipment 10 of end water supply line 101 after exchanging heat.Second energy meter 6
The second energy meter water inlet 62 and the second energy meter water outlet 61 enter respectively with second circulation pump outlet 41 and secondary side
The mouth of a river 21 connects, to detect the actual heat that user uses.Second circulation water pump water inlet 42 connects with end water return pipeline 102
It connects, power is provided with the flowing for cold water in end water return pipeline 102.Further, motor regulated valve 7 is set to heat exchanger
Between 2 and second circulation water pump 4, that is, the valve water inlet 72 and valve outlet 71 of motor regulated valve 7 respectively with secondary side
Water inlet 21 is connected with second circulation pump outlet 41.
Use municipal heating system provided by the invention that can realize that based on ground energy heat supply, central heat source heat supply is
Auxiliary heat-supplying mode.That is, user can open/close motor regulated valve 7 according to specific requirements automatic/hand, with selectivity
The deficiency that ground enables central heat source heating can addedly heat.
Specifically, motor regulated valve 7 can be set to the automatic opening/closing when meeting certain condition.It is real one
It applies in example, when the water temperature in end water return pipeline 102 is consistently less than certain temperature within a certain period of time --- for example water temperature continues
10min-30min is less than 35 DEG C -40 DEG C --- when, motor regulated valve 7 would automatically turn on;On the contrary, working as end water return pipeline 102
Interior water temperature is persistently higher than certain temperature within a certain period of time --- and such as water temperature continues 10min-30min and is higher than 45 DEG C -50
DEG C --- when, motor regulated valve 7 will turn off.Furthermore it is possible to utilize the instantaneous energy data evaluation of the first energy meter
The ability of energy heat supply, if this data has reached the upper limit value of initial design instantaneous energy data, and supply water temperature is in
Continuous decrease trend can then open second group of heat donor passage, and calculate practical municipal administration by the detection data of the second energy meter and supply
The heat of hot systems.That is, when the instantaneous heat quantity of the first energy meter 5 display reaches ground energy 8 heat supply maximum value of heat source, and end return water
When continuing for some time --- such as 10min-30min --- water temperature in pipeline 102 and being in downward trend, motor regulated valve 7
It would automatically turn on, to be heated come the deficiency that can addedly heat using central heat source.
Municipal heating system according to the present invention is transmitted without heat transfer medium, is had based on 8 heat supply of ground energy heat source at a distance
Effect avoids energy waste, thus greatly reduces heat cost.On this basis, a kind of new charging method is provided:It is based on
The actual use heat that first energy meter and the second energy meter detect is charged.This charging method is eliminated according to building
The basic expense and unnecessary heat energy loss compensation that area is collected, user need to only carry out according to the giggio number of actual use
Payment, it is fairer and more reasonable compared to existing charging method.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.