CN206398822U - A kind of central heating secondary network electric heating pump peak regulation system - Google Patents
A kind of central heating secondary network electric heating pump peak regulation system Download PDFInfo
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- CN206398822U CN206398822U CN201621225327.XU CN201621225327U CN206398822U CN 206398822 U CN206398822 U CN 206398822U CN 201621225327 U CN201621225327 U CN 201621225327U CN 206398822 U CN206398822 U CN 206398822U
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- 238000005485 electric heating Methods 0.000 title claims abstract description 73
- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 230000001105 regulatory effect Effects 0.000 claims abstract description 40
- 230000008676 import Effects 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000009467 reduction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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Abstract
A kind of central heating secondary network electric heating pump peak regulation system, including once net confession, water return pipeline, secondary network confession, water return pipeline, plate type heat exchanger, improvements introduced are：Electric heating pump regulating units are set up in plate type heat exchanger secondary network backwater entrance point, interior circulation water pipe of the electric heating pump regulating units including shell-and-tube heat exchanger, electric heating pump, shell-and-tube heat exchanger and electric heating pump evaporator, the internal circulation pump on interior circulation water pipe, net side port of export of the tube side import connecting plate type heat exchanger of shell-and-tube heat exchanger, the tube side outlet of shell-and-tube heat exchanger connects once net return pipe, and electric heating pump condenser is serially connected on the return pipe of secondary network backwater entrance point of plate type heat exchanger.Good effect of the present utility model is：Can be in the case of once net water supply parameter constant, the rapid supply and return water temperature for improving secondary network meets the once different peak regulation demand of heat user off the net.The gradient for realizing the high, medium and low warm energy of first and second net is utilized.
Description
Technical field
The utility model belongs to heating field, and in particular to the secondary network peak regulation of thermal power cogeneration central heating system.
Background technology
Thermal power cogeneration central heating system, in first, latter stage of heating, because secondary network heat user heat demand is small, to once net
Require not high with the supply water temperature of secondary network, secondary network is supplied, backwater temperature difference maintains 5 DEG C or so, secondary network heat can be met
The heat demand of user.And in heating freeze-up, as the increase of secondary network heat user heat demand is, it is necessary to improve the confession of secondary network
Coolant-temperature gage, and the confession of secondary network, backwater temperature difference maintain 10 DEG C or so, therefore, only greatly improve once net heat supply initial end
Supply water temperature, the peak regulation heat demand of secondary network heat user could be met.
Thermal power cogeneration central heating system, use improve once net supply water temperature for secondary network peak regulation mode, exist with
Lower problem.One is peak regulation in this way, due to once net supply water temperature 40 DEG C of -60 DEG C of left sides higher than secondary network return water temperature
The right side, is supplied water using the higher once net of temperature and directly heats the relatively low secondary network backwater of temperature, it is necessary to consume substantial amounts of once net
High-quality heat energy.Two be this peak regulating method very flexible.Generally, there are up to a hundred heat exchange stations in the linchpin once netted.Access two
The supply backwater temperature difference with hot period, the supply water temperature to secondary network, and secondary network of each group heat user of secondary net all exist compared with
, only with the peak regulation method that net supply water temperature is secondary network is improved once, there is the phenomenon of low load with strong power unavoidably in big difference.
Utility model content
The purpose of this utility model is to provide a kind of central heating secondary network electric heating pump peak regulation system, overcomes existing concentration
Heating system is secondary network peak regulation above shortcomings with once net supply water temperature is substantially improved.
Central heating secondary network electric heating pump peak regulation system of the present utility model, including the once net being arranged in heat exchange station are supplied
Water lines, once net water return pipeline, secondary network supply channel, secondary network water return pipeline, once board-like between net and secondary network change
Hot device, secondary network circulating pump, improvements introduced is：Set up and utilize the electric heating pump that once net backwater heat heats up to secondary network backwater
Regulating units, described electric heating pump regulating units include：Peak regulation heat exchanger, electric heating pump, connection peak regulation heat exchanger electric heating pump side
Interior circulation water pipe with electric heating pump evaporator, the internal circulation pump on interior circulation water pipe, wherein, in electric heating pump regulating units
Outlet of the thermal source water inlet of peak regulation heat exchanger through water pipe or a joint connecting plate type net side of heat exchanger, the heat of peak regulation heat exchanger
Source water out connects once net return pipe, and the delivery port of electric heating pump condenser is through water pipe or joint connecting plate type heat exchanger secondary network
The backwater import of side, the water inlet of electric heating pump condenser connects secondary network return pipe.
It is basic technical scheme of the present utility model above.
In the utility model, peak regulation heat exchanger selects shell-and-tube heat exchanger, and increases in the middle part of the shell side of shell-and-tube heat exchanger
One or more shell side stage casings are exported, the tube side import of shell-and-tube heat exchanger through water pipe or joint connecting plate type heat exchanger once
Shell side stage casing outlet on the outlet of net side, the tube side outlet connection once net return pipe of shell-and-tube heat exchanger, shell-and-tube heat exchanger with
The outlet connecting water pipe of shell side end is simultaneously pooled to more than one on logical electric flow control valve, shell side import, more logical electric flow
Adjust and filled between valve outlet, and the outlet and inlet of electric heating pump evaporator in connecting water pipe formation circulation circulation canal, circulation canal
Internal circulation pump is installed on water pipe in low-temperature circulating water, circulation canal.
In increase by one shell side stage casing outlet in the middle part of the shell side of shell-and-tube heat exchanger in the utility model, the increased shell side of institute
Section outlet is connected water-supply-pipe with the outlet of shell side end and is pooled to electric three-way flow control valve, electric three-way flow control valve
Outlet connects electric heating pump evaporator water inlet through water pipe or joint.
The how through-flow adjustable valve dsm controller regulation, described electric controller includes being arranged on the regulation of many through-current capacities
The control module of each entrance of valve and the temperature sensor of outlet, connection temperature sensor and motor-driven valve.
The course of work of the present utility model is：First, once net high-temperature water is admitted to heat exchange station along once net supply channel
Interior once net flow control valve water inlet, net side of plate type heat exchanger is determined by once net Flux Valve Control device
The temperature of entery and delivery port and secondary net side entery and delivery port, the aperture ratio of once net flow control valve is adjusted with this, will once
The control of net high temperature water-carrying capacity is arrived after the optimal proportion exchanged heat with secondary network, then is flowed out by once net Flow-rate adjustment valve outlet, via
Connecting line enters a net side water inlet of plate type heat exchanger, by the heat transfer of once net high-temperature water to plate type heat exchanger two
Secondary net side is by the secondary network backwater after the heating of electric heating pump regulating units, the thus once temperature reduction of net high-temperature water, as one
Warm water in secondary net, and flowed out from a net side delivery port of plate type heat exchanger, via connecting plate type heat exchanger and electric heating pump peak regulation
The pipeline of net side water inlet of unit, is admitted to a net side water inlet of electric heating pump regulating units, by being arranged on electric heating
Electric compressor inside pump regulating units is done manual work, the middle warm energy that net side of electric heating pump regulating units is absorbed, and is transformed into electricity
The high temperature heat of the secondary net side of heat pump regulating units is imported in secondary network backwater, the temperature reduction of warm water in thus once netting, into
For once net water at low temperature, and flow out, sent into via once net water return pipeline from a net side delivery port of electric heating pump regulating units
Once net backwater main system outside heat exchange station a, step for completing once net high-temperature water and secondary network backwater exchanges heat.
At the same time, the secondary network circulating pump on the secondary network water return pipeline being arranged in heat exchange station provides pipeline circulation
Power, the higher secondary network of temperature is supplied water the heat user water inlet sent into outside heat exchange station, is completed with heat user after heat exchange,
Thus the secondary network of reduction temperature supplies water, then is flowed out via heat user delivery port, as secondary network backwater, and along secondary network backwater
The secondary net side water inlet of electric heating pump regulating units in pipeline feeding heat exchange station, by being arranged on inside electric heating pump regulating units
Electric compressor do manual work, warm water heat energy in the once net that net side of electric heating pump regulating units is absorbed is transformed into electric heating pump tune
The secondary net side high temperature heat of peak unit is imported in secondary network backwater, and the secondary network after being heated up inside electric heating pump regulating units is returned
Water, flows out, and send into plate type heat exchanger by secondary network water return pipeline via the secondary net side delivery port of electric heating pump regulating units
Secondary net side water inlet, absorb net side of plate type heat exchanger once net high-temperature water heat after, it is higher as temperature
Secondary network supplies water, and is flowed out via the secondary net side delivery port of plate type heat exchanger, then send into heat exchange station by secondary network supply channel
The water inlet of outer heat user, complete secondary network supply, a closed cycle of water return pipeline, and once net via heat exchange station to
Heat user carries a process of heat energy.
Good effect of the present utility model is：
1st, the heat that warm water in once netting is extracted using electric heating pump regulating units is secondary network peak regulation, changes and is only improved
Once net heat supply initial end supply water temperature, could carry out traditional method of operation of peak regulation to secondary network.This peak regulation method has
The characteristics of response is fast, start-stop is flexible, can according to the actual demand of each heat user, in the case of once net water supply parameter constant,
The supply and return water temperature of secondary network can be improved rapidly, meet the once different peak regulation demand of secondary network heat user off the net；
2nd, with it is traditional use raising once net supply water temperature is the mode of secondary network peak regulation compared with, this peak regulation method
By reducing once the heat transfer temperature difference that net high temperature supplies water with secondary network backwater, secondary network backwater is risen by electric heating pump regulating units first
Wen Hou, enters back into plate type heat exchanger and is exchanged heat with once net high-temperature water, i.e., the heat of secondary network 60% by plate type heat exchanger from
Once exchanged in net high-temperature water, the heat of secondary network 40% absorbs warm water heat energy in once net by electric heating pump regulating units and mended
Fill, by this peak regulation method, can reduce by 40% or so once net high-quality heat energy consumption；
3rd, this peak regulation system realizes the gradient utilization of the high, medium and low warm energy of once net and secondary network.Once net high temperature
Water and secondary network are by the secondary network backwater direct heat transfer after the heating of electric heating pump regulating units, warm water and electric heating pump assembly in once netting
Evaporator low-temperature circulating water direct heat-exchange, it is straight that the height that electric heating pump train condenser is produced warms the secondary network backwater relatively low with temperature
Connect heat exchange；
4th, the peak regulation phase, due to low 10 DEG C or so of secondary network return water ratio secondary network supply water temperature, using electric heating pump regulating units
Preferential heating secondary network backwater.One is that the secondary network higher compared to more preferential heating-up temperature supplies water, and can lift electric heating pump peak regulation machine
The system energy efficiency of group；Two be that the secondary network higher compared to more preferential heating-up temperature supplies water, due to reduction electric heating pump regulating units
Condensation temperature, inner condensing tube wall fouling will be into declining to a great extent；
5th, because electric heating pump regulating units need to be connected on once to net on middle temperature water return pipeline, the influence to once net resistance
It is related to the hydraulic equilibrium of original central heating system, due to the resistance ratios plate of the shell-and-tube heat exchanger built in electric heating pump regulating units
Formula heat exchanger is low by more than 50%, therefore, reduces on once netting hydraulically balanced influence；
6th, the low-temperature heat quantity of required peak regulation is concentrated by once net heat supply initial end and supplemented, and also can fully excavate heating plant
Low-grade heat source, be more beneficial for arbitrary way carry out environmental protection treatment, the method for alleviate north city winter coal smoke type
Atmosphere pollution is significant.
Brief description of the drawings
Fig. 1 is to be related to heating system structure schematic diagram of the present utility model.
In figure：1 is once net supply channel, 2 for once net water return pipeline, 3 be plate type heat exchanger, 4 be electric heating pump peak regulation
Unit, 5 be once net water return pipeline, 6 be secondary network supply channel, 7 be heat user, 8 be secondary network water return pipeline, 9 be secondary
Net circulating pump.
Fig. 2 is electric heating pump regulating units structural representation in the utility model.
In figure：4-1 is that shell-and-tube heat exchanger, 4-2 are that electric heating pump, 4-2-1 are that electric heating pump evaporator, 4-2-2 are that electric heating pump is cold
Condenser, 4-3 are that electric heating pump regulating units interior circulation water pipe, 4-4 are electric heating pump regulating units internal circulation pump.
Fig. 3 is the shell-and-tube heat exchanger structural representation that uses in the utility model.
Wherein：4-1-1 is that shell-and-tube heat exchanger housing, 4-1-2 are that tube side tube channel group, 4-1-3 are shell side deflector, 4-1-
4 be that tube side water inlet, 4-1-5 are that tube side delivery port, 4-1-6 are that shell side water inlet, 4-1-7 are shell side stage casing delivery port, 4-1-8
It is three-way flow regulating valve for shell side outlet water at tail end mouthful, 4-1-9.
Fig. 4 is the how logical electric flow control valve electric controller block diagram that uses in the utility model.
Embodiment
Refering to Fig. 1, central heating secondary network electric heating pump peak regulation system of the present utility model, including：It is arranged in heat exchange station
Once net supply channel 1 and water return pipeline 2, secondary network supply channel 6 and water return pipeline 8, plate once between net and secondary network
Formula heat exchanger 3, secondary network circulating pump 9.Improvements introduced is：Set up secondary network backwater is heated up using once net backwater heat
Electric heating pump regulating units 4.
Refering to Fig. 2, described electric heating pump regulating units 4 include shell-and-tube heat exchanger 4-1, electric heating pump 4-2, connection shell heat exchange
Device and electric heating pump 4-2 interior circulation water pipe 4-3, the low-temperature circulating water for injecting interior circulation water pipe, on interior circulation water pipe
Internal circulation pump 4-4, wherein, shell-and-tube heat exchanger 4-1 tube side import is through water pipe connecting plate type heat exchanger in electric heating pump regulating units 4
A 3 net side port of export, shell-and-tube heat exchanger 4-1 tube side outlet connects once net water return pipeline 2, electric heating pump condenser 4-2-
Secondary network backwater import of 2 delivery port through water pipe connecting plate type heat exchanger 3, electric heating pump condenser 4-2-2 water inlet connection
Secondary network water return pipeline 8.
Refering to Fig. 3, increase by one shell side stage casing outlet in the middle part of the shell-and-tube heat exchanger 4-1 used in the utility model shell side
4-1-7, increased shell side stage casing outlet 4-1-7 be connected water-supply-pipe with the outlet 4-1-8 of shell side end and be pooled to three-way flow
On adjustable valve 4-1-9, three-way flow regulating valve 4-1-9 outlet connection electric heating pump evaporator 4-2-1 water inlets.Tube side exchanges heat
Once net outlets of the device tube side import 4-1-4 through water pipe connecting plate type heat exchanger 3.Shell-and-tube heat exchanger 4-1 tube side outlet 4-1-5
Connect once net water return pipeline 2.The shell side import 4-1-6 of shell-and-tube heat exchanger connects evaporator in electric heating pump 4-2 through inner circulating tube 4-4
4-2-1 delivery port.4-1-7 or its water delivery between three-way flow regulating valve 4-1-9 are exported in shell-and-tube heat exchanger 4-1 stage casing
Temperature sensor is set on pipe.Set on the outlet 4-1-8 of shell side end or its water pipe between three-way flow regulating valve 4-1-9
Put temperature sensor.Said temperature sensor Access Control module.The control output of control module meets three-way flow regulating valve 4-
1-9。
Three-way flow regulating valve controller is according to the constant temperature of the outlet of setting, and adjustment shell-and-tube heat exchanger 4-1 shell sides stage casing goes out
Mouth 4-1-7 and end outlet 4-1-8 enters the flow proportional of flow control valve.
Claims (3)
1. a kind of central heating secondary network electric heating pump peak regulation system, including：It is arranged on once net supply channel in heat exchange station, one
It is secondary net water return pipeline, secondary network supply channel, secondary network water return pipeline, plate type heat exchanger once between net and secondary network, secondary
Net circulating pump, it is characterized in that：Set up using the electric heating pump regulating units that once net backwater heat heats up to secondary network backwater, it is described
Electric heating pump regulating units include：Peak regulation heat exchanger, electric heating pump, connection peak regulation heat exchanger electric heating pump side and electric heating pump evaporator
Interior circulation water pipe, the internal circulation pump on interior circulation water pipe, wherein, the heat of peak regulation heat exchanger in electric heating pump regulating units
Outlet of the source water inlet through water pipe or a joint connecting plate type net side of heat exchanger, the thermal source water out connection one of peak regulation heat exchanger
Secondary net return pipe, backwater import of the delivery port through water pipe or the secondary net side of joint connecting plate type heat exchanger of electric heating pump condenser,
The water inlet of electric heating pump condenser connects secondary network return pipe.
2. central heating secondary network electric heating pump peak regulation system according to claim 1, it is characterized in that：Peak regulation heat exchanger is selected
Shell-and-tube heat exchanger, and increase in the middle part of the shell side of shell-and-tube heat exchanger the outlet of one or more shell side stage casings, shell heat exchange
Outlet of the tube side import of device through water pipe or a joint connecting plate type net side of heat exchanger, the tube side outlet connection of shell-and-tube heat exchanger
The outlet connecting water pipe of shell side stage casing outlet on once net return pipe, shell-and-tube heat exchanger and shell side end is simultaneously pooled to more than one
On logical electric flow control valve, shell side import, more logical electric flow control valve outlet, the outlet and inlet with electric heating pump evaporator
Between connecting water pipe formation inner cycle channel, fill in circulation canal in being provided with the water pipe in low-temperature circulating water, circulation canal
Circulating pump.
3. central heating secondary network electric heating pump peak regulation system according to claim 2, it is characterized in that：The shell of shell-and-tube heat exchanger
Increase by one shell side stage casing outlet in the middle part of journey, the increased shell side stage casing of institute, which is exported, to be connected water-supply-pipe with the outlet of shell side end and converges
Collect electric three-way flow control valve, electric three-way Flow-rate adjustment valve outlet enters through water pipe or joint connection electric heating pump evaporator
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621225327.XU CN206398822U (en) | 2016-11-15 | 2016-11-15 | A kind of central heating secondary network electric heating pump peak regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621225327.XU CN206398822U (en) | 2016-11-15 | 2016-11-15 | A kind of central heating secondary network electric heating pump peak regulation system |
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| Publication Number | Publication Date |
|---|---|
| CN206398822U true CN206398822U (en) | 2017-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621225327.XU Withdrawn - After Issue CN206398822U (en) | 2016-11-15 | 2016-11-15 | A kind of central heating secondary network electric heating pump peak regulation system |
Country Status (1)
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| CN (1) | CN206398822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072088A (en) * | 2016-11-15 | 2018-05-25 | 长春中安鸿程伟业节能科技有限公司 | A kind of central heating secondary network electric heating pump peak regulation system |
-
2016
- 2016-11-15 CN CN201621225327.XU patent/CN206398822U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072088A (en) * | 2016-11-15 | 2018-05-25 | 长春中安鸿程伟业节能科技有限公司 | A kind of central heating secondary network electric heating pump peak regulation system |
| CN108072088B (en) * | 2016-11-15 | 2024-05-14 | 长春中安鸿程伟业节能科技有限公司 | Peak regulating system of electric heating pump of central heating secondary network |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170811 Effective date of abandoning: 20240514 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170811 Effective date of abandoning: 20240514 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |