CN106765434A - A kind of cascade utilization heating system with the mixed water of once net backwater - Google Patents

A kind of cascade utilization heating system with the mixed water of once net backwater Download PDF

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Publication number
CN106765434A
CN106765434A CN201611052703.4A CN201611052703A CN106765434A CN 106765434 A CN106765434 A CN 106765434A CN 201611052703 A CN201611052703 A CN 201611052703A CN 106765434 A CN106765434 A CN 106765434A
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CN
China
Prior art keywords
radiator
pipeline
water
floor heating
heating
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CN201611052703.4A
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Chinese (zh)
Inventor
郭磊宏
杨洪健
王健
范皓
郝圣楠
雷春鸣
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TIANJIN JIN-AN THERMAL POWER Co Ltd
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TIANJIN JIN-AN THERMAL POWER Co Ltd
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Priority to CN201611052703.4A priority Critical patent/CN106765434A/en
Publication of CN106765434A publication Critical patent/CN106765434A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/02Hot-water central heating systems with forced circulation, e.g. by pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/10Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1058Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

The invention belongs to central heating field, more particularly to a kind of cascade utilization heating system with the mixed water of once net backwater, including radiator heating network, floor heating heating network, unicom pipeline and heat exchange station, the unicom pipeline connects the radiator heating network and the floor heating heating network, the unicom pipeline sets motor regulated valve, the unicom pipeline connects the radiator heating network and is connected with heat exchange station, and the heat exchange station includes radiator heat-exchange unit and floor heating heat exchanger unit.Beneficial effects of the present invention:Set reasonable, connected using multi-group heat exchanger, radiator primary water is set to work as floor heating heat exchanger unit, reach supply water temperature and utilize purpose step by step, and increase and carry out mixed water for backwater unicom pipeline, ensure to meet in first latter stage floor unit supply water temperature and require, can effectively reduce the heat exchange station once net flow.

Description

A kind of cascade utilization heating system with the mixed water of once net backwater
Technical field
The present invention utilizes field, more particularly to a kind of cascade utilization heat supply system with the mixed water of once net backwater in central heating System.
Background technology
City central heating has energy saving, the overall economic efficiency, the ring that reduce pollution, favorably produce, provide amenities for the people Border benefit and social benefit.It is one of main foundation facility of urban modernization, is also economic development, improves people's material One of important symbol of life.Being used northern area heat supply more from one or more thermals source by heat supply network to city, town or wherein Some regions heat user supplies the mode of heat energy, the heat exchange station of central heating network frequently be water-water plate type heat exchanger, supply The Heat production of thermic load is broadly divided into radiator, air-conditioning, floor heating, and a big net return water temperature is higher than needed for floor heating Supply water temperature, this operating condition just creates condition for the staged of primary side return water temperature is utilized.
Intend heat supply transformation pipe network heat supply temperature supply and return water temperature of 2015~2016 Heating Season of region and be up to 102/ 55℃.Pipe network return water temperature maintain essentially in 50 DEG C or so (preliminary heating period and latter stage because outdoor temperature is high, supply water temperature It is low to cause 45 DEG C or so of return water temperature).
One time pipe network backwater heat energy is recycled, and reducing return water temperature can not only improve pipe network conveying capacity, can also expand Area of heat-supply service and reduction primary water pipeline heat waste.Intend 50 DEG C of primary water temperature of heat supply transformation region pipe network stabilization, with The heating system of 45~55 DEG C of the universal supply water temperature of earth source heat pump belongs to same thermal energy step and uses category.Existing in theory can be again The secondary possibility for utilizing, and be more applicable for the radiant floor heating system of low-temperature heat source heat supply, need to be supplied for this operating condition design Hot systems.
The content of the invention
It is the above mentioned problem to be solved, the present invention provides a kind of cascade utilization heating system of the mixed water of once net backwater.
A kind of cascade utilization heating system with the mixed water of once net backwater, including radiator heating network, floor heating are supplied Hot pipe network, unicom pipeline and heat exchange station, it is characterised in that the unicom pipeline connects the radiator heating network and described Plate heating pipe network, the unicom pipeline sets motor regulated valve, and the unicom pipeline connects the radiator heating tube Net is connected with heat exchange station, and the heat exchange station includes radiator heat-exchange unit and floor heating heat exchanger unit.
Preferably, the radiator heating network includes water supply line of radiator, radiator primary water pipeline, dissipates Hot device heat-exchange unit, radiator secondary water-supply pipeline, the secondary water return pipeline of radiator, the radiator heat-exchange unit are set once Side entrance, side outlet, secondary side entrance, a secondary side outlet, water supply line of the radiator are changed with the radiator The side entrance connection of heat engine group, the primary side of the radiator primary water pipeline and the radiator heat-exchange unit Outlet connection, the secondary side outlet connection of radiator heat-exchange unit described in the radiator secondary water-supply pipeline, the radiator Secondary water return pipeline is connected with the secondary side entrance of the radiator heat-exchange unit, water supply line water supply side of the radiator To cast steel ball valve, dirt separator and motor regulated valve is disposed with, the radiator primary water pipeline sets cast steel ball valve, Backwater direction on the secondary water return pipeline of radiator is disposed with the first cast steel ball valve, angle valve, dirt separator, variable frequency adjustment Pump, check-valves and butterfly valve, the secondary water return pipeline of the radiator and radiator moisturizing branch between the angle valve and the dirt separator Pipeline is connected, and the radiator moisturizing pipeline sets gradually the second cast steel ball valve, check-valves, circulating pump, the 3rd cast steel ball valve, removes Dirty device and the 4th cast steel ball valve, the radiator secondary water-supply pipeline set the 5th cast steel ball valve, the radiator secondary water-supply Pipeline and the secondary water return pipeline of the radiator are connected with radiator;
The floor heating heating network include water supply line of floor heating, floor heating primary water pipeline, Plate heating heat-exchange unit, floor heating secondary water-supply pipeline, the secondary water return pipeline of floor heating, the floor heating heat exchanger unit Side entrance, side outlet, secondary side entrance, a secondary side outlet, water supply line of the floor heating and institute are set State the side entrance connection of floor heating heat exchanger unit, the floor heating primary water pipeline and the floor heating heat exchanger The side outlet connection of unit, the secondary side of floor heating heat exchanger unit described in the floor heating secondary water-supply pipeline Outlet connection, the secondary water return pipeline of floor heating is connected with the secondary side entrance of the floor heating heat exchanger unit, described Water supply line water supply direction of floor heating is disposed with cast steel ball valve, dirt separator and motor regulated valve, the floor Heating primary water pipeline sets cast steel ball valve, and the backwater direction on the secondary water return pipeline of floor heating is disposed with the One cast steel ball valve, angle valve, dirt separator, variable frequency adjustment pump, check-valves and butterfly valve, between the angle valve and the dirt separator describedly The secondary water return pipeline of plate heating is connected with floor heating moisturizing branch pipe(tube), and the floor heating moisturizing pipeline sets gradually the second casting Steel ball valve, check-valves, circulating pump, the 3rd cast steel ball valve, dirt separator and the 4th cast steel ball valve, the floor heating secondary water-supply pipe Road sets the 5th cast steel ball valve, and the floor heating secondary water-supply pipeline and the secondary water return pipeline of the floor heating are adopted with floor Warm structure connection;
Water supply line of the radiator primary water pipeline and the floor heating is same pipeline, the UNICOM Pipeline connects the radiator primary water pipeline and water supply line of floor heating.
Preferably, institute's radiator heat-exchange unit and the floor heating heat exchanger unit use type flow channel type plate-type heat-exchange Set in device, the dirt separator and add stain remover.
Present invention has the advantages that:Set reasonable, connected using multi-group heat exchanger, make radiator primary water when floor is adopted Warm heat-exchange unit, reaches supply water temperature and utilizes purpose step by step.And increase and carry out mixed water for backwater unicom pipeline, it is ensured that in first latter stage Floor unit supply water temperature meets requirement, and the method can effectively reduce the heat exchange station once net flow.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Water supply line of 1. radiator in figure, 2. radiator primary water pipeline, 3. motor regulated valve, 4. decontaminates Device, 5. butterfly valve, 6. circulating pump, 7. variable frequency adjustment pump, 8. radiator heat-exchange unit, 9. radiator secondary water-supply pipeline, 10. radiates The secondary water return pipeline of device, 11. cast steel ball valves, 12. unicom pipelines, 13. water supply lines of floor heating one time, 14. floor heatings one Secondary water return pipeline, 15. floor heating heat exchanger units, 16. floor heating secondary water-supply pipelines, the secondary return pipe of 17. floor heatings Road, 18. radiator heating networks, 19. floor heating heating networks, 20. check-valves, 21. angle valves, 22. radiator moisturizing pipelines, 23. floor heating moisturizing pipelines.
Specific embodiment
Specific embodiment of the invention is explained below in conjunction with the accompanying drawings.
In accompanying drawing, 1. water supply line of radiator, 2. radiator primary water pipeline, 3. motor regulated valve, 4. removes Dirty device, 5. butterfly valve, 6. circulating pump, 7. variable frequency adjustment pump, 8. radiator heat-exchange unit, 9. radiator secondary water-supply pipeline, 10. dissipates The hot secondary water return pipeline of device, 11. cast steel ball valves, 12. unicom pipelines, 13. water supply lines of floor heating one time, 14. floor heatings Primary water pipeline, 15. floor heating heat exchanger units, 16. floor heating secondary water-supply pipelines, the secondary backwater of 17. floor heatings Pipeline, 18. radiator heating networks, 19. floor heating heating networks, 20. check-valves, 21. angle valves, 22. radiator filling pipes Road, 23. floor heating moisturizing pipelines.
The present invention relates to a kind of cascade utilization heating system with the mixed water of once net backwater, including radiator heating network, Floor heating heating network, unicom pipeline and heat exchange station, unicom pipeline connection radiator heating network and floor heating heating tube Net, unicom pipeline set motor regulated valve, motor regulated valve by electric operator and regulating valve connection combination after by Adjustment and installation constitutes motor regulated valve, only operationally just consumes power energy-saving, and non-carbon-emitting is environmentally friendly, convenience quick for installation, Unicom pipeline connection radiator heating network is connected with heat exchange station, and heat exchange station includes that radiator heat-exchange unit and floor heating are changed Heat engine group, sets reasonable, is connected using multigroup heat-exchange unit, makes radiator primary water when the floor of floor heating heat exchanger unit The once water supply of heating, reaches supply water temperature step by step using purpose, and the unicom pipeline increased for backwater carries out mixed water, it is ensured that first Latter stage floor unit supply water temperature meets requirement can effectively reduce the heat exchange station once net flow.
Radiator heating network includes water supply line of radiator, radiator primary water pipeline, radiator heat exchanger Group, radiator secondary water-supply pipeline, the secondary water return pipeline of radiator, radiator heat-exchange unit set side entrance, a primary side Outlet, secondary side entrance, secondary side outlet, water supply line of radiator connect with a side entrance of radiator heat-exchange unit Connect, radiator primary water pipeline is connected with a side outlet of radiator heat-exchange unit, radiator secondary water-supply heat dissipation of pipeline The secondary side outlet connection of device heat-exchange unit, the secondary water return pipeline of radiator connects with the secondary side entrance of radiator heat-exchange unit Connect, water supply line of radiator is connected with a side entrance of radiator heat-exchange unit, and radiator heat-exchange unit is once net Heat is obtained, the automatic continuous radiator heating water for being converted to user's needs, i.e. radiator once supplies water and changed from radiator After side entrance of heat engine group carries out heat exchange into panel radiator heat-exchange unit, from a side outlet outflow, radiator Side outlet of primary water pipeline and radiator heat-exchange unit is connected;Water supply line water supply direction of radiator sets gradually There are cast steel ball valve, dirt separator and motor regulated valve, cast steel ball valve switch is light, small volume, very heavy caliber can be made, seal Reliable, simple structure is easy to maintenance, and sealing surface is with sphere often in closure state, it is adaptable to which the condition of work such as HTHP is severe Operating mode, regulation of once being supplied water for radiator, the rear radiator current in dirt separator that once supply water enter cylinder by water inlet, Flowed out by delivery port through the current of filter screen filtration, dirt then falls to dirt separator bottom, discharged by blowdown, for removing and Impurity and dirt in filter pipe, the cleaning of water quality in holding system reduce resistance, protection equipment and prevent line clogging, Heat exchanger effectiveness is improved, motor regulated valve by adjustment and installation after electric operator and regulating valve connection combination by constituting electricity Dynamic control valve, only operationally just consumes power energy-saving, and non-carbon-emitting environmental protection, convenience quick for installation adjusts radiator once Supply water, radiator primary water pipeline sets cast steel ball valve, cast steel ball valve switch is light, and small volume can make very heavy caliber, Sealed reliable, simple structure is easy to maintenance, and sealing surface is with sphere often in closure state, it is adaptable to the condition of work such as HTHP Severe operating mode, for the regulation of radiator primary water, the backwater direction on the secondary water return pipeline of radiator is disposed with the One cast steel ball valve, angle valve, dirt separator, variable frequency adjustment pump, check-valves and butterfly valve, cast steel ball valve switch are light, and small volume can be done Into very heavy caliber, sealed reliable, simple structure is easy to maintenance, and sealing surface is with sphere often in closure state, it is adaptable to HTHP The operating mode severe etc. condition of work, for the secondary backwater regulation of radiator, angle valve is exactly angle stop valves, angle valve and globe valve class Seemingly, its structure and characteristic be by spherical valve amendment, with outlet and the import that the difference of globe valve is angle valve into 90 degree directly Angle, when hydraulic pressure is excessive, can be adjusted on triangle vavle;Dirt separator can effectively dissipate reduction dirt and produce, and improve heat exchange efficiency, become Frequency modulation section pump, the convenient regulation secondary return water temperature of radiator, check-valves refers to be flowed in itself by medium and automatic open and close valve Valve, for preventing the valve of secondary returning aqueous reflux, check-valves to belong to a kind of automatic valve, its Main Function is to prevent radiator two Secondary backwater flows backwards, prevents pump and drive motor from inverting;Butterfly valve is called flap valve, is a kind of regulating valve of simple structure, butterfly valve It is main on secondary water return pipeline to play cut-out and throttling work;The secondary water return pipeline of radiator and radiator between angle valve and dirt separator Moisturizing branch pipe(tube) connect, radiator moisturizing pipeline set gradually the second cast steel ball valve, check-valves, circulating pump, the 3rd cast steel ball valve, Dirt separator and the 4th cast steel ball valve, cast steel ball valve switch are light, small volume, can make very heavy caliber, sealed reliable, structure letter Single, easy to maintenance, sealing surface is with sphere often in closure state, it is adaptable to the severe operating mode of the condition of work such as HTHP, non-return Valve refers to be flowed in itself by medium and automatic open and close flap, for preventing the valve that current flow backwards in radiator moisturizing branch pipe(tube) Door, check-valves belongs to a kind of automatic valve, its Main Function be prevent current in radiator moisturizing branch pipe(tube) from flowing backwards, prevent pump and Drive motor is inverted;Circulating pump overcomes plate to change etc., and many residual resistance provide circulation powers, the circulation on radiator moisturizing branch pipe(tube) The calculating of pump lift will be carried out on the basis of whole heating system water force;Radiator moisturizing pipeline supplement heating water consumption Amount, various valves and circulating pump cooperation adjust amount of makeup water as needed, and dirt separator is used for removing and the impurity in filter pipe And dirt, the cleaning of water quality in holding system, resistance is reduced, protection equipment and prevent line clogging, it is ensured that the water of supplement pipeline Matter.Radiator secondary water-supply pipeline sets the 5th cast steel ball valve, and cast steel ball valve switch is light, and small volume can make very big mouth Footpath, sealed reliable, simple structure is easy to maintenance, and sealing surface is with sphere often in closure state, it is adaptable to the work bar such as HTHP The severe operating mode of part, for radiator secondary water-supply pipeline, radiator secondary water-supply pipeline and the secondary water return pipeline of radiator with Radiator is connected, and heat exchange efficiency is high, it is easy to accomplish;
Floor heating change heating network including floor heating change water supply line, floor heating change primary water pipeline, Floor heating changes heat-exchange unit, floor heating and changes secondary water-supply pipeline, floor heating and changes secondary water return pipeline, and floor heating is changed Heat engine group sets side entrance, side outlet, secondary side entrance, a secondary side outlet, and floor heating changes a water supply line A side entrance for changing heat-exchange unit with floor heating is connected, and floor heating changes primary water pipeline and changes heat exchanger with floor heating The side outlet connection of group, floor heating changes the secondary side outlet connection that secondary water-supply pipeline floor heating changes heat-exchange unit, Floor heating changes the secondary side entrance that secondary water return pipeline changes heat-exchange unit with floor heating and is connected, and floor heating is changed and once supplied water The side entrance that pipeline changes heat-exchange unit with floor heating is connected, and floor heating changes heat-exchange unit and once net is obtained heat, The automatic continuous floor heating for being converted to user's needs changes heating water, i.e. floor heating and changes once to supply water and changed from floor heating Side entrance of heat-exchange unit is changed after heat-exchange unit carries out heat exchange into plate type floor plate heating, from a side outlet outflow, Floor heating changes primary water pipeline and changes side outlet of heat-exchange unit with floor heating and is connected;Floor heating changes a feed pipe Road water supply direction is disposed with cast steel ball valve, dirt separator and motor regulated valve, and cast steel ball valve switch is light, and small volume can To make very heavy caliber, sealed reliable, simple structure is easy to maintenance, and sealing surface is with sphere often in closure state, it is adaptable to high temperature The severe operating mode of the conditions of work such as high pressure, regulation of once supplying water is changed for floor heating, and rear floor heating to be changed once supply water and removed Current enter cylinder by water inlet in dirty device, are flowed out by delivery port through the current of filter screen filtration, and dirt then falls to dirt separator Bottom, discharges by blowdown, is reduced with the impurity and dirt in filter pipe, the cleaning of water quality in holding system for removing Resistance, protection equipment and prevents line clogging, improves heat exchanger effectiveness, and motor regulated valve is by electric operator and regulating valve Motor regulated valve is constituted by adjustment and installation after connection combination, power energy-saving is only operationally just consumed, non-carbon-emitting is environmentally friendly, Convenience quick for installation, regulating floor heating is changed and once supplied water, and floor heating changes primary water pipeline and sets cast steel ball valve, cast steel ball Threshold switch is light, small volume, can make very heavy caliber, and sealed reliable, simple structure is easy to maintenance, and sealing surface is normal with sphere In closure state, it is adaptable to the severe operating mode of the condition of work such as HTHP, primary water regulation, floor are changed for floor heating The backwater direction that heating is changed on secondary water return pipeline be disposed with the first cast steel ball valve, angle valve, dirt separator, variable frequency adjustment pump, Check-valves and butterfly valve, cast steel ball valve switch are light, small volume, can make very heavy caliber, sealed reliable, simple structure, maintenance Convenient, sealing surface is with sphere often in closure state, it is adaptable to the severe operating mode of the condition of work such as HTHP, for floor heating Secondary backwater regulation is changed, angle valve is exactly angle stop valves, and angle valve is similar with globe valve, and its structure and characteristic are by spherical valve amendment , with the outlet that the difference of globe valve is angle valve with import into 90 degree of right angles, when hydraulic pressure is excessive, can be on triangle vavle Regulation;Dirt separator can effectively dissipate reduction dirt and produce, and improve heat exchange efficiency, and variable frequency adjustment pump facilitates regulating floor heating to change two Secondary return water temperature, check-valves refers to be flowed in itself by medium and automatic open and close flap, for preventing the valve of secondary returning aqueous reflux Door, check-valves belongs to a kind of automatic valve, and its Main Function is to prevent floor heating from changing secondary returning aqueous reflux, preventing pump and driving Motor is inverted;Butterfly valve is called flap valve, is a kind of regulating valve of simple structure, and butterfly valve main rising on secondary water return pipeline is cut Disconnected and throttling is made;Floor heating between angle valve and dirt separator changes secondary water return pipeline and changes moisturizing branch pipe(tube) with floor heating and is connected, Floor heating changes moisturizing pipeline and sets gradually the second cast steel ball valve, check-valves, circulating pump, the 3rd cast steel ball valve, dirt separator and Four cast steel ball valves, cast steel ball valve switch is light, and small volume can make very heavy caliber, sealed reliable, simple structure, maintenance side Just, sealing surface is normal with sphere in closure state, it is adaptable to which the severe operating mode of the condition of work such as HTHP, check-valves refers to dependence Medium flows and automatic open and close flap in itself, for preventing floor heating from changing the valve that current flow backwards in moisturizing branch pipe(tube), non-return Valve belongs to a kind of automatic valve, and its Main Function is to prevent from floor heating from changing current in moisturizing branch pipe(tube) to flow backwards, prevent pump and drive Dynamic motor reversion;Circulating pump overcome plate to change etc. many residual resistance provide circulation powers, floor heating changes following on moisturizing branch pipe(tube) The calculating of ring pump lift will be carried out on the basis of whole heating system water force;Floor heating changes the supplement heating of moisturizing pipeline Water consumption, various valves and circulating pump coordinate and adjust amount of makeup water as needed, dirt separator be used for removing with filter pipe Impurity and dirt, the cleaning of water quality in holding system reduce resistance, protection equipment and prevent line clogging, it is ensured that supplement pipeline Water quality.Floor heating changes secondary water-supply pipeline and sets the 5th cast steel ball valve, and cast steel ball valve switch is light, and small volume can be done Into very heavy caliber, sealed reliable, simple structure is easy to maintenance, and sealing surface is with sphere often in closure state, it is adaptable to HTHP The operating mode severe etc. condition of work, secondary water-supply pipeline is changed for floor heating, and floor heating changes secondary water-supply pipeline and floor Heating is changed secondary water return pipeline and is changed with floor heating and is connected, and heat exchange efficiency is high, it is easy to accomplish;
Water supply line of the radiator primary water pipeline and the floor heating is same pipeline, the UNICOM Pipeline connects the radiator primary water pipeline and water supply line of floor heating, and unicom pipeline carries out mixed water, it is ensured that First latter stage floor unit supply water temperature meets requirement, can effectively reduce the heat exchange station once net flow.
Institute's radiator heat-exchange unit and the floor heating heat exchanger unit use type flow channel type plate type heat exchanger, described to remove Set in dirty device and add stain remover.
50 DEG C of primary water temperature for intending heat supply transformation region pipe network stabilization of the technical program, generally supply with earth source heat pump The heating system that 45~55 DEG C of coolant-temperature gage belongs to same thermal energy step and uses category.In the presence of the possibility that can be reused, and for The radiant floor heating system of low-temperature heat source heat supply is more applicable, and the heat exchange station institute existing radiator of on-load has floor heating again, And institute's on-load area is essentially identical, water supply side flow is close, is connected using multigroup heat-exchange unit, works as radiator primary water The once water supply of the floor heating of floor heating heat exchanger unit, reaches supply water temperature step by step using purpose, increases for backwater UNICOM Pipeline carries out mixed water, it is ensured that meets requirement and can effectively reduce the heat exchange station in first latter stage floor unit supply water temperature and once nets stream Amount.
Abatement processes are carried out to existing heat exchange station:Water quality is always a problem of central heating.In actual motion, one Secondary water supply matter is the softened water that power plant treats, and very well, load heating system is required water quality;But secondary water-supply is to be running water, Without sofening treatment, water quality is poor, and by the discovery of unpicking and washing to plate type heat exchanger, incrustation scale is mainly generated in secondary side, is The mixture of compound scale, i.e. hardness dirt and dirt.
In order to find the crux of water quality in one's respective area, our water quality and incrustation scale to system is separately sampled, has carried out chemistry Analysis.
Incrustation scale result of laboratory test:
Composition of scale Calcium carbonate/magnesium Acid non-soluble substance Iron Organic matter Silt Silicate
Ratio 98.53% 1.19% 0.14% 0.05% 0.47% 0
By assay, Main Ingredients and Appearance is hardness incrustation scale to dirty sample, and deposits a small amount of silt, contains micro iron filings witness tube road Mild corrosion.The presence of micro-content organism, it was demonstrated that have a small amount of plant residue in system, may cause for putrefactivebacteria.System is every Year, In The Initial Period Of Heating had the gas generated because bacterium algae is corrupt, and system exhaust workload is larger.
Water quality result of laboratory test is sampled for the first time:
Sample time:2015.11.13 System water sample 1 System water sample 2
Electrical conductivity 1220uS/cm 1225uS/cm
pH 8.5 8.3
Phenolphthalein alkalinity 0mmol/l 0mmol/l
Total alkalinity 7.6mmol/l 7.2mmol/l
Hardness 3.8mmol/l 3.7mmol/l
Iron ion 2mg/l 2.15mg/l
Result display phenolphthalein alkalinity is zero, illustrates do not exist OH in water-、CO3 2-;The all methyl orange alkalinities of total alkalinity, say There is substantial amounts of HCO3 in bright water-。HCO3-It is to be removed without going past softening, and HCO3-Being heated can be decomposed into CO3 2-And H+, Ca2+ And CO3 2-Form calcium carbonate (incrustation scale), HCO3-In H+Also acid is formed, corrosion is caused to system.Iron ion content is very high, face Color color is aobvious serious, illustrates that pipeline has heavy corrosion, and tiny iron filings are precipitated as through testting black particle shape in water sample, and pipeline is deposited Pipeline network leak is likely to occur during corrosion spalling state, operation.
Second sampling water quality result of laboratory test:
Sample time:2015.11.27 Feedwater is (after deoxygenation) System water sample 1
Electrical conductivity 1180 1219uS/cm
pH 8.37 8.46
Phenolphthalein alkalinity 0mmol/l 0mmol/l
Total alkalinity 5.6mmol/l 6.5mmol/l
Hardness 2mmol/l 3.6mmol/l
Iron ion 0.2 milligrams per liter 1.75mg/l
Second sampling is carried out after deoxygenation treatment, the water methyl orange alkalinity after deoxygenation is still very high, feed water iron (after deoxygenation) Ion concentration is not high, but system water iron ion content is very high, it was demonstrated that iron ion comes from internal system, and internal system pipeline exists tight Heavy corrosion.For two sub-samplings, the specialty analysis of water quality are carried out, suited the remedy to the case, formulated following water treatment scheme:Decontamination Agent includes lignin, mosanom and sodium humate, tannic acid sodium, starch, hydrogen-oxygen using existing commercially available stain remover mixing, stain remover Change sodium and catalyst, lignin plays a part of loose plate and changes incrustation scale, and mosanom and sodium humate are prevented from the formation of dirt, single Peaceful acid sodium can adsorb oxygen, form tannate diaphragm, and starch regulation mud, sodium hydroxide pellets mud can adjust pH value, And magnetic iron ore diaphragm is formed, catalyst can effectively prevent organic component from precipitating, and stain remover each component percentage is according to water quality feelings Condition is adjusted.
After implementing water disposal plan, initial stage water sample analysis:
Sample time:2015.12.21 System water sample 1
Electrical conductivity 1637uS/cm
pH 10.89
Phenolphthalein alkalinity 4.0mmol/l
Total alkalinity 11mmol/l
Turbidity 678NTU
System water color becomes black, illustrates that medicament is distributed to the mud of deposition in water body.Need constantly filtering Remove silt in water.December 21, a large amount of iron filings scums are filtered out in filter, color is from the passivation of bronzing iron rust sample Black ferroferric oxide, it was demonstrated that be passivated in system and completed.
After implementing water disposal plan, later stage water sample analysis:
Sample time:2016.3.10 System water sample 1
Electrical conductivity 1006uS/cm
pH 10.85
Hardness 0.2mmol/l
Iron ion 2.0mg/l
Turbidity 60NTU
By implementing targetedly water treatment scheme, secondary water-supply water quality be much changed into from problem meet heat supply will Ask.The heat exchange efficiency of the water process pilot heat exchange station improves about 20%;The protection that pipeline passes through medicament, enhances corrosion resistance Can, ensure the heat supply safety during operation.
Solution heating system quality problem can fundamentally reduce the potential safety hazard during operation, and can improve heat exchange The heat exchange efficiency of equipment, improves resident's thermal mass.But harnessing the river must do from own situation, water quality and network analysis are carried out, tied Correct water disposal plan is actually taken in conjunction.
Compared with prior art, unicom pipeline connection the radiator heating network and floor heating heating network of this programme, Unicom pipeline sets motor regulated valve, and motor regulated valve is connected after combining by debugging by electric operator and regulating valve Install and constitute motor regulated valve, only operationally just consume power energy-saving, non-carbon-emitting environmental protection, convenience quick for installation, UNICOM Pipeline communication radiator heating network is connected with heat exchange station, and heat exchange station includes radiator heat-exchange unit and floor heating heat exchanger machine Group, sets reasonable, is connected using multigroup heat-exchange unit, makes radiator primary water when the floor heating of floor heating heat exchanger unit Once water supply, reach supply water temperature step by step using purpose, the unicom pipeline increased for backwater carries out mixed water, it is ensured that in first latter stage Floor unit supply water temperature meets requirement can effectively reduce the heat exchange station once net flow, effectively reduce production cost.
An example of the present invention has been described in detail above, but content is only presently preferred embodiments of the present invention, no Can be considered as limiting practical range of the invention.All impartial changes made according to the present patent application scope and improvement etc., Should still belong within patent covering scope of the invention.

Claims (3)

1. a kind of cascade utilization heating system with the mixed water of once net backwater, including radiator heating network, floor heating heat supply Pipe network, unicom pipeline and heat exchange station, it is characterised in that the unicom pipeline connects the radiator heating network and the floor Heating pipe network, the unicom pipeline sets motor regulated valve, and the unicom pipeline connects the radiator heating network It is connected with heat exchange station, the heat exchange station includes radiator heat-exchange unit and floor heating heat exchanger unit.
2. a kind of cascade utilization heating system with the mixed water of once net backwater according to claim 1, it is characterised in that institute Stating radiator heating network includes water supply line of radiator, radiator primary water pipeline, radiator heat-exchange unit, radiating Device secondary water-supply pipeline, the secondary water return pipeline of radiator, the radiator heat-exchange unit set side entrance, a primary side and go out Mouth, secondary side entrance, secondary side outlet, water supply line of the radiator enter with the primary side of the radiator heat-exchange unit Mouth connection, the radiator primary water pipeline is connected with a side outlet of the radiator heat-exchange unit, described to dissipate The secondary side outlet connection of radiator heat-exchange unit described in hot device secondary water-supply pipeline, the secondary water return pipeline of radiator and institute The secondary side entrance connection of radiator heat-exchange unit is stated, water supply line water supply direction of the radiator is disposed with cast steel Ball valve, dirt separator and motor regulated valve, the radiator primary water pipeline set cast steel ball valve, the radiator secondary returning Backwater direction on waterpipe is disposed with the first cast steel ball valve, angle valve, dirt separator, variable frequency adjustment pump, check-valves and butterfly valve, The secondary water return pipeline of the radiator between the angle valve and the dirt separator is connected with radiator moisturizing branch pipe(tube), the radiating Device moisturizing pipeline sets gradually the second cast steel ball valve, check-valves, circulating pump, the 3rd cast steel ball valve, dirt separator and the 4th cast steel ball Valve, the radiator secondary water-supply pipeline sets the 5th cast steel ball valve, the radiator secondary water-supply pipeline and the radiator Secondary water return pipeline is connected with radiator;
The floor heating heating network includes that water supply line of floor heating, floor heating primary water pipeline, floor are adopted Warm heat-exchange unit, floor heating secondary water-supply pipeline, the secondary water return pipeline of floor heating, the floor heating heat exchanger unit are set Side entrance, side outlet, secondary side entrance, a secondary side outlet, water supply line of the floor heating with it is described The side entrance connection of plate heating heat-exchange unit, the floor heating primary water pipeline and the floor heating heat exchanger unit A side outlet connection, the secondary side outlet of floor heating heat exchanger unit described in the floor heating secondary water-supply pipeline Connection, the secondary water return pipeline of floor heating is connected with the secondary side entrance of the floor heating heat exchanger unit, the floor Water supply line water supply direction of heating is disposed with cast steel ball valve, dirt separator and motor regulated valve, the floor heating Primary water pipeline sets cast steel ball valve, and the backwater direction on the secondary water return pipeline of floor heating is disposed with the first casting Adopt on steel ball valve, angle valve, dirt separator, variable frequency adjustment pump, check-valves and butterfly valve, the floor between the angle valve and the dirt separator Warm up secondary water return pipeline to be connected with floor heating moisturizing branch pipe(tube), the floor heating moisturizing pipeline sets gradually the second cast steel ball Valve, check-valves, circulating pump, the 3rd cast steel ball valve, dirt separator and the 4th cast steel ball valve, the floor heating secondary water-supply pipeline set Put the 5th cast steel ball valve, the floor heating secondary water-supply pipeline and the secondary water return pipeline of the floor heating and floor heating knot Structure is connected;
Water supply line of the radiator primary water pipeline and the floor heating is same pipeline, the unicom pipeline Connect water supply line of the radiator primary water pipeline and floor heating.
3. a kind of cascade utilization heating system with the mixed water of once net backwater according to claim 2, it is characterised in that institute Radiator heat-exchange unit and the floor heating heat exchanger unit are used in type flow channel type plate type heat exchanger, the dirt separator and set Add stain remover.
CN201611052703.4A 2016-11-24 2016-11-24 A kind of cascade utilization heating system with the mixed water of once net backwater Pending CN106765434A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355839A (en) * 2017-09-06 2017-11-17 天津市爱默森电气科技有限公司 Heat exchange station heating pipe network and heating system
CN107366954A (en) * 2017-09-06 2017-11-21 天津市爱默森电气科技有限公司 Heating control system and heating system
CN109612059A (en) * 2018-12-04 2019-04-12 中国建筑西北设计研究院有限公司 A kind of novel air conditioner water distributing system
CN113883577A (en) * 2021-09-16 2022-01-04 华能兰州新区热电有限公司 Intelligent supply system for central heating temporary hot water

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Publication number Priority date Publication date Assignee Title
EP0099295A2 (en) * 1982-07-09 1984-01-25 Rehau Plastiks AG + Co Under floor heating system for buildings
CN101566365A (en) * 2008-04-24 2009-10-28 张明亮 Intelligent type frequency-conversion and energy-saving heat-exchange equipment
CN203940498U (en) * 2014-05-19 2014-11-12 广东易微环保能源科技有限公司 A kind of bio-waste heating system
CN203964108U (en) * 2014-06-17 2014-11-26 潍坊双和水设备有限公司 A kind of direct-fired heat supply unit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099295A2 (en) * 1982-07-09 1984-01-25 Rehau Plastiks AG + Co Under floor heating system for buildings
CN101566365A (en) * 2008-04-24 2009-10-28 张明亮 Intelligent type frequency-conversion and energy-saving heat-exchange equipment
CN203940498U (en) * 2014-05-19 2014-11-12 广东易微环保能源科技有限公司 A kind of bio-waste heating system
CN203964108U (en) * 2014-06-17 2014-11-26 潍坊双和水设备有限公司 A kind of direct-fired heat supply unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355839A (en) * 2017-09-06 2017-11-17 天津市爱默森电气科技有限公司 Heat exchange station heating pipe network and heating system
CN107366954A (en) * 2017-09-06 2017-11-21 天津市爱默森电气科技有限公司 Heating control system and heating system
CN109612059A (en) * 2018-12-04 2019-04-12 中国建筑西北设计研究院有限公司 A kind of novel air conditioner water distributing system
CN113883577A (en) * 2021-09-16 2022-01-04 华能兰州新区热电有限公司 Intelligent supply system for central heating temporary hot water
CN113883577B (en) * 2021-09-16 2022-10-14 华能兰州新区热电有限公司 Intelligent supply system for central heating temporary hot water

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Application publication date: 20170531