CN202040890U - Distribution type heat supply system - Google Patents

Distribution type heat supply system Download PDF

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Publication number
CN202040890U
CN202040890U CN2011201424559U CN201120142455U CN202040890U CN 202040890 U CN202040890 U CN 202040890U CN 2011201424559 U CN2011201424559 U CN 2011201424559U CN 201120142455 U CN201120142455 U CN 201120142455U CN 202040890 U CN202040890 U CN 202040890U
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China
Prior art keywords
water
heating system
type heat
distributed heating
high pressure
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Expired - Fee Related
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CN2011201424559U
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Chinese (zh)
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苗苏宁
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SHANGHAI HUA-ENLY HEAT ENERGY MACHINE Co Ltd
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SHANGHAI HUA-ENLY HEAT ENERGY MACHINE Co Ltd
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Abstract

The utility model relates to a distribution type heat supply system, which is used for heating and achieves purposes of energy conservation and safety. The distribution type heat supply system adopts a modularized combination of multiple gas (oil) normal-pressure hot water units and is provided with an inner circulation water replenishing tank and an inner circulation system so as to guarantee safety operation of the normal-pressure hot water units. The distribution type heat supply system adopts a plate type heat exchanger and the normal-pressure hot water units which are fittingly used, and can supply heat for high-rise building heating systems. During operation, the distribution type heat supply system can realize stepless regulation of output thermal power according to changes of seasons and climate, and leads heat supply quantity and heat utilization quantity to be matched optimally. The distribution type heat supply system can greatly increase operation efficiency. Compared with present central heating, the distribution type heat supply system realizes safe, energy-saving, environment-friendly and flexible utilization of the units, and further can save a great quantity of pipeline thermal loss.

Description

Distributed heating system
Technical field
The present invention relates to a kind of, heating use with energy-conservation, safety be the distributed heating system of purpose.Distributed heating system adopts many combustion gas (oil) atmospheric hot-water unit modular combination, has been equipped with to ensureing the interior circulation replenishing water tank of water and the internal circulation system of atmospheric hot-water unit safety operation.Distributed heating system adopts plate type heat exchanger and atmospheric hot-water unit to be used, and can be the heat supply of skyscraper heating system.Distributed heating system can be carried out the step-less adjustment of heat outputting power according to season and climate change when operation, makes heating load and reaches optimum Match with heat.Distributed heating system can improve the operational efficiency of heating system greatly, compares with present central heating, has safety, energy-saving and environmental protection and uses unit flexibly, also can save a large amount of pipeline heat loss.
Background technology
At present, existing city heat supply in winter also adopts central heating system mostly, and the thermal source of central heating system is mainly from coal-burning boiler.Because coal price is lower, and city dweller's fuel of China is based on fire coal, it is no exception to heat certainly in a very long time.The coal-burning boiler thermal efficiency is low, and coal-fired freight volume is bigger, the also bad processing of coal ash and pollutant emission.Also have the heating network of central heating system longer, the heat loss of heat supply pipeline accounts for the 5-8% of total amount of heat too greatly, causes the waste of the energy.The large coal-fired boiler use is dumb in addition can not regulate load at any time, and therefore, operational efficiency is very poor.In recent years along with the variation of city dweller's fuel, particularly combustion gas is used in the city, advantage is provided for distributed heating system, with combustion gas (oil) is that the atmospheric hot-water unit of fuel has and do not have the operation of pressure, there is not hidden peril of explosion, energy flexible transformation operating mode, saving power and preventing pollution dyes, multiple advantages such as the pipeline heat loss is little are particularly suitable for the requirement of China's urban heating heat supply.Distributed heating system is mainly by the atmospheric hot-water unit, internal circulation system, interior circulation water charging system, plate type heat exchanger and external circulating system, outer circulation high pressure water charging system, water treatment system, for compositions such as water return pipeline and heating systems.The atmospheric hot-water unit can be the combination of many combustion gas (oil) atmospheric hot-water unit, can be when operation with weather or changes of seasons, and the duty of conversion unit makes heating load and reaches optimum Match with heat at any time.The atmospheric hot-water unit is when work, and unit inside is to depress constant-pressure operation in nothing, and in order to give high rise building heating, the delivery port of atmospheric hot-water unit is equipped with plate type heat exchanger and interior water circulating pump, forms the internal circulation system of a normal pressure operation.Internal circulation system and external circulating system separate with plate type heat exchanger then, the operating pressure height of plate type heat exchanger, and the above hydrostatic pressure of external circulating system energy pressure-bearing 100m can be the above high-rise building safe heat supply of 100m.
Summary of the invention
The purpose of this invention is to provide a kind ofly, form distributed heating system by combustion gas (oil) atmospheric hot-water unit and multiple systems such as internal circulation system, external circulating system.
The object of the present invention is achieved like this, and distributed heating system is made up of combustion gas (oil) atmospheric hot-water unit, internal circulation system, external circulating system, outer circulation high pressure water charging system, water treatment system, confession water return pipeline and heating system etc.The atmospheric hot-water unit is a fuel with combustion gas (oil), has produced heat of high temperature after the fuel combustion, and with heat transferred water, combustion gas (oil) atmospheric hot-water unit is in the mode of output high-temperature-hot-water to heat of high temperature, uses for heating system in unit.The atmospheric hot-water unit uses flexibly with the variation of heating season and weather for convenience, the operation of the combustion gas of optional majority platform (oil) atmospheric hot-water unit modular combination, can make heating load and reach optimum Match at autumn and winter and winter-spring season selective operation with heat.Because combustion gas (oil) atmospheric hot-water unit constant-pressure operation under normal pressure, in order to give high rise building heating, water circulating pump and plate type heat exchanger in the delivery port of atmospheric hot-water unit is equipped with are formed an internal circulation system.The big heat transfer temperature difference of the heat transfer system of plate type heat exchanger is little, and the operating pressure height is withstand voltage more than 1MPa simultaneously, and the above hydrostatic pressure of energy pressure-bearing 100m can be that the high-rise heating more than the 100m is supplied water.For guaranteeing internal circulation system constant-pressure operation under normal pressure, circulation subsidiary water tank in the top of unit is equipped with, can moisturizing in internal circulation system at any time, to reach unit and internal circulation system full water all the time, and the air in unit and the internal circulation system and water vapour can be discharged, guarantee the safety of internal circulation system and constant-pressure operation under normal pressure all the time.Internal circulation system is boundary with the plate type heat exchanger, and temperature end is a normal pressure, and high temperature is from combustion gas (oil) atmospheric hot-water unit, and normal pressure is from the setting height(from bottom) of interior circulation subsidiary water tank.The heat of temperature end passes through plate type heat exchanger, pass to the other end low-temperature end of plate type heat exchanger, the circulatory system beyond the low-temperature end is an external circulating system, the heating hot water of low-temperature end output is used for heating system heating, low-temperature end is under high pressure moved, and the pressure of low-temperature end is decided on the operating pressure of plate type heat exchanger and the height of heating building thing.External circulating system mainly is made up of outer circulation water pump, outer circulation high pressure water charging system, water treatment facilities, confession water return pipeline and heating system etc.The outer circulation water pump is sent the heating hot water of plate type heat exchanger low-temperature end into water supply line, and each heating system sent into hot water again by water supply line.Heating hot water is sent into plate type heat exchanger by water return pipeline emit heat in heating system after again, in plate type heat exchanger with internal circulation system in high-temperature water carry out heat exchange.Hot water in the external circulating system, continual circulation under the effect of water circulating pump outside is for heating system provides heat.Because external circulating system periodic duty under high pressure, for guaranteeing not lack of water of external circulating system, therefore, on external circulating system, install outer circulation high pressure water charging system additional, the high pressure water charging system is mainly by high pressure moisturizing water pump, check valve, and the electrode points relay is formed, and the setting pressure of electrode points relay reduces when the external circulating system lack of water, the work of electrode points relay starting high-pressure hydraulic pump is the external circulating system moisturizing.The water of outer circulation high pressure water charging system is from the water treatment storage tank, and water treatment system mainly is made up of water treatment facilities or water treatment special agent and water treatment storage tank, and when adopting water treatment facilities to handle running water, the water of handling well is sent in the storage tank and preserved.When adopting special agent to handle running water, the water treatment special agent directly can be dropped in the water treatment storage tank, the water of high pressure water charging system and interior circulation subsidiary water tank is all taken from the water treatment storage tank.
Owing to adopted such scheme, formed the novel distributed heating system of a cover.
Description of drawings
Below in conjunction with drawings and Examples utility model is further specified.
Accompanying drawing is a principle system diagram of the present invention.
Circulate in the water circulating pump 3. plate type heat exchangers 4. interior circulation subsidiary water tank 5. in 1. combustion gas (oil) the atmospheric hot-water unit 2. among the figure and replenish the additional water pipe of circulation subsidiary water tank filling pipe 7. outer circulation water pumps 8. water supply lines 9. water return pipelines 10. heating systems 11. high pressure moisturizing water pumps 12. check valves 13. electrode points relays 14. high pressure filling pipes 15. water treatment facilities 16. water treatment facilities outlet pipes 17. water treatment storage tanks 18. high pressure water charging systems in the water pipes 6.
The specific embodiment
In the drawings, combustion gas (oil) fuel burns in atmospheric hot-water unit 1 and produces a large amount of heat of high temperature, and heat of high temperature is transmitted feedwater in the atmospheric hot-water unit, make the temperature of water improve into high-temperature-hot-water, and high-temperature-hot-water is the thermal source of heating system.The delivery port of combustion gas (oil) atmospheric hot-water unit is connected with the water inlet of interior water circulating pump 2, and interior water circulating pump is pumped into pressurization output behind the high-temperature-hot-water of combustion gas (oil) atmospheric hot-water unit.The delivery port of interior water circulating pump 2 is connected with the temperature end water inlet of plate type heat exchanger 3, and the high-temperature-hot-water of combustion gas (oil) atmospheric hot-water unit is sent into plate type heat exchanger.High-temperature-hot-water carries out heat exchange with the heating hot water of external circulating system in plate type heat exchanger, the high-temperature-hot-water temperature is reduced.Plate type heat exchanger 3 temperature end delivery ports are connected with the water inlet of combustion gas (oil) atmospheric hot-water unit 1, form an internal circulation system, do continuous circulation under the effect of interior water circulating pump 2.For guaranteeing internal circulation system constant-pressure operation under normal pressure, circulation subsidiary water tank 4 in the top of atmospheric hot-water unit is equipped with, interior circulation subsidiary water tank is replenished water pipe 5 through interior circulation, be connected with combustion gas (oil) atmospheric hot-water unit 1, moisturizing in internal circulation system, the water of interior circulation subsidiary water tank is by interior circulation subsidiary water tank filling pipe 6, take from the water after the water treatment of water treatment storage tank 17, as the supplementing water of internal circulation system.The another side of plate type heat exchanger 3 is a low-temperature end, and low-temperature end delivery port output heating hot water is used for heating system heating.Outer circulation water pump 7, water inlet be connected with the low-temperature end delivery port of plate type heat exchanger 3, suck the heating hot water pressurization back output of plate type heat exchanger.The delivery port of outer circulation water pump 7 is connected with water supply line 8, and heating hot water is sent into water supply line.Water supply line 8 is connected with the water inlet of heating system 10, and heating hot water is sent into heating system 10 through water supply line, for heating system heating with and reduced the heating hot water temperature.The delivery port of heating system 10 is connected with water return pipeline 9, heating hot water is emitted heat in heating system after, sends into plate type heat exchanger 3 by water return pipeline 9 and continues and the high-temperature-hot-water exchange, and the temperature that improves heating hot water circulates once more.For guaranteeing not lack of water of external circulating system, the import of high pressure moisturizing water pump 11 replenishes water pipe 18 with the high pressure water charging system and is connected, the high pressure water charging system replenishes water pipe 18 and is connected with water treatment storage tank 17, and high pressure moisturizing water pump sucks the water in the water treatment storage tank 17, and the pressurization back is the external circulating system moisturizing.High pressure moisturizing water pump 11 is worked under the control of electrode points relay 13, and the delivery port of high pressure moisturizing water pump 11 is connected with check valve 12, is used to prevent that high pressure moisturizing water pump shutdown back supplementing water from flowing backwards.Check valve 12 is with after high pressure filling pipe 14 is connected, and high pressure filling pipe 14 is connected to the external circulating system moisturizing with water supply line 8 again, to guarantee not lack of water of external circulating system.

Claims (19)

  1. A distributed heating system its mainly replenish water pipe, interior circulation subsidiary water tank filling pipe, outer circulation water pump, water supply line, water return pipeline, heating system, high pressure moisturizing water pump, check valve, electrode points relay, high pressure filling pipe, water treatment facilities, water treatment facilities outlet pipe, water treatment storage tank, high pressure water charging system and replenish parts such as water pipe and form by combustion gas (oil) atmospheric hot-water unit, interior water circulating pump, plate type heat exchanger, interior circulation subsidiary water tank, interior circulation, it is characterized in that: combustion gas (oil) atmospheric hot-water unit is made up of many units.
  2. 2. distributed heating system according to claim 1 is characterized in that: the delivery port of combustion gas (oil) atmospheric hot-water unit is connected with interior water circulating pump water inlet.
  3. 3. distributed heating system according to claim 1 is characterized in that: the delivery port of interior water circulating pump is connected with plate type heat exchanger temperature end water inlet.
  4. 4. distributed heating system according to claim 1 is characterized in that: plate type heat exchanger temperature end delivery port is connected with the water inlet of atmospheric hot-water unit.
  5. 5. distributed heating system according to claim 1 is characterized in that: interior circulation subsidiary water tank is replenished water pipe with interior circulation and is connected.
  6. 6. distributed heating system according to claim 1 is characterized in that: interior circulation replenishes water pipe (5) and is connected with the atmospheric hot-water unit.
  7. 7. distributed heating system according to claim 1 is characterized in that: interior circulation subsidiary water tank is connected with interior circulation subsidiary water tank filling pipe.
  8. 8. distributed heating system according to claim 1 is characterized in that: interior circulation subsidiary water tank filling pipe is connected with the water treatment storage tank.
  9. 9. distributed heating system according to claim 1 is characterized in that: the water inlet of outer circulation water pump is connected with plate type heat exchanger low-temperature end delivery port.
  10. 10. distributed heating system according to claim 1 is characterized in that: the outlet of outer circulation water pump is connected with water supply line.
  11. 11. distributed heating system according to claim 1 is characterized in that: water supply line is connected with the heating system import.
  12. 12. distributed heating system according to claim 1 is characterized in that: the delivery port of heating system is connected with water return pipeline.
  13. 13. distributed heating system according to claim 1 is characterized in that: the water inlet of high pressure moisturizing water pump replenishes water pipe with the high pressure water charging system and is connected.
  14. 14. distributed heating system according to claim 1 is characterized in that: the high pressure water charging system replenishes water pipe and is connected with the water treatment storage tank.
  15. 15. distributed heating system according to claim 1 is characterized in that: high pressure moisturizing water pump is worked under the control of electrode points relay (13).
  16. 16. distributed heating system according to claim 1 is characterized in that: the delivery port of high pressure moisturizing water pump is connected with check valve.
  17. 17. distributed heating system according to claim 1 is characterized in that: the check valve outlet is connected with the high pressure filling pipe.
  18. 18. distributed heating system according to claim 1 is characterized in that: the high pressure filling pipe is connected with water supply line (8).
  19. 19. distributed heating system according to claim 1 is characterized in that: the moisturizing of external circulating system is from the water treatment storage tank.
CN2011201424559U 2011-05-06 2011-05-06 Distribution type heat supply system Expired - Fee Related CN202040890U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201424559U CN202040890U (en) 2011-05-06 2011-05-06 Distribution type heat supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201424559U CN202040890U (en) 2011-05-06 2011-05-06 Distribution type heat supply system

Publications (1)

Publication Number Publication Date
CN202040890U true CN202040890U (en) 2011-11-16

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Application Number Title Priority Date Filing Date
CN2011201424559U Expired - Fee Related CN202040890U (en) 2011-05-06 2011-05-06 Distribution type heat supply system

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CN (1) CN202040890U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966991A (en) * 2012-12-19 2013-03-13 哈尔滨工业大学 Distributed water mixing and pressurized heat supply system having decoupling function and design method of system
CN104272029A (en) * 2012-01-31 2015-01-07 株式会社日立制作所 Device for controlling regional heat energy supply network
CN104807066A (en) * 2015-04-02 2015-07-29 宁波杭州湾新区祥源动力供应有限公司 Energy-efficient hot water supplying system capable of meeting different water consumption demands

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272029A (en) * 2012-01-31 2015-01-07 株式会社日立制作所 Device for controlling regional heat energy supply network
CN104272029B (en) * 2012-01-31 2017-03-08 株式会社日立制作所 The control device of region thermal energy supply network
CN102966991A (en) * 2012-12-19 2013-03-13 哈尔滨工业大学 Distributed water mixing and pressurized heat supply system having decoupling function and design method of system
CN102966991B (en) * 2012-12-19 2014-12-10 哈尔滨工业大学 Distributed water mixing and pressurized heat supply system having decoupling function and design method of system
CN104807066A (en) * 2015-04-02 2015-07-29 宁波杭州湾新区祥源动力供应有限公司 Energy-efficient hot water supplying system capable of meeting different water consumption demands

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111116

Termination date: 20180506