CN104566596A - Heat supply network balancing system - Google Patents
Heat supply network balancing system Download PDFInfo
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- CN104566596A CN104566596A CN201510023026.2A CN201510023026A CN104566596A CN 104566596 A CN104566596 A CN 104566596A CN 201510023026 A CN201510023026 A CN 201510023026A CN 104566596 A CN104566596 A CN 104566596A
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- inlet pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000030279 gene silencing Effects 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a heat supply network balancing system. The heat supply network balancing system comprises a water inlet pipe and a water return pipe; the water inlet pipe is provided with a filter, a water pump and a water inlet temperature sensor at a user side in sequence according to the water flow direction; the water return pipe is provided with a water return temperature sensor at the user side, a manual balance valve and a pressure difference control valve with a flow rate adjusting function in sequence according to the water flow direction; a check valve is arranged between the water inlet pipe and water return pipe; the water pump is provided with a transducer; the pressure difference control valve, water inlet temperature sensor at the user side, water return temperature sensor at the user side and outdoor temperature sensor are connected with a controller with a weather compensation function through circuits; each of the water inlet pipe and water return pipe is provided with a thermometer and a pressure gauge, and shut-off valves are arranged at two ends of each of the water inlet pipe and water return pipe. The heat supply network balancing system realizes the variable-flow rate intelligent heat usage of a secondary network of the heat supply network, the return water at the user side is mixed with the primary side inlet water of the system, the return water energy of the user side is completely used, the comfort is improved for the user, and the energy conservation and environment protection are realized.
Description
Technical field
The invention belongs to heating power field of energy-saving technology, especially relate to a kind of heat supply network balance sysmte.
Background technology
The ubiquitous problem of current heat supply network is that a large amount of heats is paid in heating plant one end of supplying water, but building is uneven in temperature, and room temperature is uncomfortable, and user is unsatisfied with, charge difficulty.For dealing with problems, heat exchange station is forced to little temperature difference large discharge and runs, and cause thermal energy conversion efficiency low, water circulating pump power consumption is large.Therefore, the automatic control equipment that heat exchange station is equipped with is as auto temperature controlled system, frequency converter cannot give play to power saving function and potentiality due to " wooden pail effect " of heat supply network secondary network, and the heat energy supply that automatic climate compensates cannot realize, and water circulating pump can not run by automatic frequency-conversion according to the actual requirements.Traditional solutions adopts compensation flap to regulate, but uncontrollable heat supply, intelligence can not use heat, circulation electric energy is saved limited, and high with indoor improvement expenses, is difficult to realize.
Summary of the invention
In view of this, the present invention is intended to propose a kind of heat supply network balance sysmte, in units of every building, realizes heat supply network secondary network variable-flow intelligence and uses heat, improve users'comfort, energy-conserving and environment-protective.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of heat supply network balance sysmte, comprises water inlet pipe and return pipe; Described water inlet pipe is provided with filter, water pump and user side inflow temperature sensor successively by water (flow) direction; Described return pipe sets gradually the differential pressure control valve of user side return water temperature sensor, manual balanced valve and band flow regulating function by water (flow) direction; Check-valves is provided with between described water inlet pipe and return pipe; Described water pump is provided with frequency converter; Also outdoor temperature sensor is installed in outdoor; Described user side inflow temperature sensor, user side return water temperature sensor and outdoor temperature sensor are all connected with the controller with weather compensation function by circuit, and controller also connects differential pressure control valve simultaneously and controls its aperture; Described water inlet pipe and return pipe are equipped with thermometer and Pressure gauge, and are all provided with shut-off valve respectively at water inlet pipe two ends and return pipe two ends.
Further, one end that described check-valves connects water inlet pipe is between filter and water pump, and the one end connecting return pipe is between manual balanced valve and differential pressure control valve.
Further, described check-valves is the Wafer Check Valves identical with the caliber of return pipe with water inlet pipe.
Further, described check-valves is the slowly closed silencing formula check-valves identical with the caliber of return pipe with water inlet pipe.
Further, described water inlet pipe is all provided with pressure at filter two ends and reads point.
Further, described water inlet pipe is provided with gauge table.
Further, described controller is provided with signal projector, is provided with the watch-dog with signal projector wireless connections at heating plant.
Relative to prior art, a kind of heat supply network balance sysmte of the present invention has following advantage:
1) by the differential pressure control valve of controller accommodation zone flow regulating function, make system near-end save flow, make building obtain actual required flow, heat from heat supply network, realize comprehensive waterpower, thermodynamic equilibrium.
2) outer net realizes variable-flow, and the large temperature difference of low discharge is run, and reduces system return temperature, reduces pipe network investment and heat loss.And give full play to frequency converter function, reduce pump energy consumption.
3) temperature signal collected is fed back to controller by user side inflow temperature sensor, user side return water temperature sensor and outdoor temperature sensor, differential pressure control valve flow is regulated by the controller with weather compensation function, opens check valve if desired, the backwater of user side is intake with primary side mix, controller can compensate the target temperature value of setting, and therefore this heat supply network balance sysmte can realize user side weather compensation, timesharing subregion temperature control, heating according to need.
5) water inlet pipe is provided with gauge table, realizes at building consumer heat inlet place adjustable, measurable, easy to implement, transformation cost is low.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the heat supply network balance sysmte figure described in the embodiment of the present invention.
Description of reference numerals:
1-differential pressure control valve, 2-water pump, the manual balanced valve of 3-, 4-check-valves, 5-filter, 6-controller, 7-outdoor temperature sensor, 8-shut-off valve, 9-thermometer, 10-Pressure gauge, 11-user side inflow temperature sensor, 12-user side return water temperature sensor, 101-water inlet pipe, 102-return pipe.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of heat supply network balance sysmte, as shown in Figure 1, comprises water inlet pipe 101 and return pipe 102; Described water inlet pipe 101 is provided with filter 5, water pump 2 and user side inflow temperature sensor 11 successively by water (flow) direction; Described return pipe 102 sets gradually the differential pressure control valve 1 of user side return water temperature sensor 12, manual balanced valve 3 and band flow regulating function by water (flow) direction; Check-valves 4 is provided with between described water inlet pipe 101 and return pipe 102; Described water pump 2 is provided with frequency converter; In outdoor, outdoor temperature sensor 7 is also installed; Described user side inflow temperature sensor 11, user side return water temperature sensor 12 and outdoor temperature sensor 7 are all connected with the controller 6 with weather compensation function by circuit, and controller 6 also connects differential pressure control valve 1 simultaneously and controls its aperture; Described water inlet pipe 101 and return pipe 102 are equipped with thermometer 9 and Pressure gauge 10, and are all provided with shut-off valve 8 respectively at water inlet pipe 101 two ends and return pipe 102 two ends.
It should be noted that, the differential pressure control valve 1 of band flow regulating function possesses the function of stable pressure reduction, is regulate heat supply network balance sysmte to go more accurately, not by the interference of heat supply network secondary side supervisor net.Also add check-valves 4 bypass design user side backwater can be made to intake with system primary side mix, make full use of the energy of user side backwater, reduce the flow of system primary side water inlet.In prior art, heating plant is in order to reach user's heating demands, can only calculate quantitative flow heat supply according to parameters such as area of heat-supply services, and this flow causes heat supply network near-end user overheated, and remote subscriber is not warm.And after this heat supply network balance sysmte has been installed, can according to the demand of every building, the flow needed for all the time extracting from heat supply network secondary side supervisor net intelligently, now heat supply network secondary side supervisor net is variable flow system.
When user side return water temperature is low, system can give differential pressure control valve 1 one signal of band flow regulating function, keeps former setting pressure reduction, increases the flow of inlet water of heat supply network balance sysmte primary side.When user side return water temperature is high time, system can give differential pressure control valve 1 one signal of band flow regulating function, keeps former setting pressure reduction, reduces the flow of inlet water of heat supply network balance sysmte primary side.
Wherein, one end that described check-valves 4 connects water inlet pipe 101 is between filter 5 and water pump 2, and the one end connecting return pipe 102 is between manual balanced valve 3 and differential pressure control valve 1.
Wherein, described check-valves 4 is the Wafer Check Valves identical with the caliber of return pipe 102 with water inlet pipe 101.Be easy to select and purchase, easy for installation, caliber is identical simultaneously, can not produce the pressure loss.
Wherein, described check-valves 4 is the slowly closed silencing formula check-valves identical with the caliber of return pipe 102 with water inlet pipe 101.Be easy to select and purchase, noise is little, does not disturb residents, and check-valves 4 is identical with the caliber of return pipe 102 with water inlet pipe 101, can not produce the pressure loss.
Wherein, described water inlet pipe 101 is all provided with pressure at filter 5 two ends and reads point, pressure test can be carried out easily, the pressure condition at checked filter 5 two ends, place filter 5 and block.
Wherein, described water inlet pipe 101 is provided with gauge table.Like this, compared with transforming with household-based heat metering, namely building consumer heat inlet place realizes measurable, and retrofit work amount and cost reduce greatly, and without the need to disturbing residents.
Wherein, described controller 6 is provided with signal projector, is provided with the watch-dog with signal projector wireless connections at heating plant.Because described signal projector connects described controller 6, so relevant parameter and controller signals etc. that controller 6 obtains all can be sent to heating plant, heating plant can real-time monitoring equipment operational factor, also can the aperture of Long-distance Control differential pressure control valve 1 and the operation of water pump 2.
The situation of every building is different, thus need system can oneself according to demand, extract required flow.The flow of heat supply network secondary side main line can be reduced like this, arrive energy-conservation object.And then, can according to the difference of the difference in functionality such as factory, school heat time period for building, timesharing zonal control, realizes energy-saving run; Can be different building and different supply water temperatures and output are provided, solve the contradiction of new and old building; Support that part building adopts the different end-wise manner such as floor heating, fan-coil heating; Support that single two-pipe system coexists.
After this heat supply network balance sysmte is installed, according to temperature signal, system reduces primary side inlet flow rate, user's secondary side backwater mixes primary side water inlet by check-valves 4 (check-valves 4 is when an end pressure of return pipe 102 is greater than its pressure near water inlet pipe 101 one end), forms user's secondary side Inner eycle.Like this, heat supply network balance sysmte primary side flow of inlet water reduces, and makes to become large into backwater temperature difference, reaches the object of saving flow.This system can according to demand, and intelligence extracts the flow needed for oneself from heat supply network secondary side supervisor net, reaches energy-conservation object.
Because heat supply network balance sysmte user secondary side backwater can supplement primary side flow of inlet water, therefore heat supply network secondary side is made to be responsible for netting gear for dilatation ability, both the old system reform can be applied to, if heating plant main circulation pump flow is constant, heat supply network primary side main line is constant, then can effectively increase existing area of heat-supply service.Also can as new system, use thermal source of avoiding the peak hour, makes pipe network possess dilatation ability.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a heat supply network balance sysmte, comprises water inlet pipe and return pipe; It is characterized in that: described water inlet pipe is provided with filter, water pump and user side inflow temperature sensor successively by water (flow) direction; Described return pipe sets gradually the differential pressure control valve of user side return water temperature sensor, manual balanced valve and band flow regulating function by water (flow) direction; Check-valves is provided with between described water inlet pipe and return pipe; Described water pump is provided with frequency converter; Also outdoor temperature sensor is installed in outdoor; Described user side inflow temperature sensor, user side return water temperature sensor and outdoor temperature sensor are all connected with the controller with weather compensation function by circuit, and controller also connects differential pressure control valve simultaneously and controls its aperture; Described water inlet pipe and return pipe are equipped with thermometer and Pressure gauge, and are all provided with shut-off valve respectively at water inlet pipe two ends and return pipe two ends.
2. a kind of heat supply network balance sysmte according to claim 1, is characterized in that: one end that described check-valves connects water inlet pipe is between filter and water pump, and the one end connecting return pipe is between manual balanced valve and differential pressure control valve.
3. a kind of heat supply network balance sysmte according to claim 1, is characterized in that: described check-valves is the Wafer Check Valves identical with the caliber of return pipe with water inlet pipe.
4. a kind of heat supply network balance sysmte according to claim 1, is characterized in that: described check-valves is the slowly closed silencing formula check-valves identical with the caliber of return pipe with water inlet pipe.
5. a kind of heat supply network balance sysmte according to claim 1, is characterized in that: described water inlet pipe is all provided with pressure at filter two ends and reads point.
6. a kind of heat supply network balance sysmte according to claim 1, is characterized in that: described water inlet pipe is provided with gauge table.
7. a kind of heat supply network balance sysmte according to claim 1, is characterized in that: described controller is provided with signal projector, is provided with the watch-dog with signal projector wireless connections at heating plant.
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| CN201510023026.2A CN104566596B (en) | 2015-01-19 | 2015-01-19 | A kind of heat supply network balance system |
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| CN201510023026.2A CN104566596B (en) | 2015-01-19 | 2015-01-19 | A kind of heat supply network balance system |
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| CN104566596B CN104566596B (en) | 2018-01-05 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016445A (en) * | 2016-05-24 | 2016-10-12 | 河北惠沧节能科技有限公司 | Automatic adjusting system for central heating circular water heat energy supply amount |
| CN107559945A (en) * | 2017-09-25 | 2018-01-09 | 北京京源水仪器仪表有限公司 | A kind of waterpower self-regulation heating system and self-adjusting method |
| CN107726581A (en) * | 2017-11-09 | 2018-02-23 | 华南理工大学建筑设计研究院 | A kind of subscriber access system for regional cooling and heating system |
| CN108019816A (en) * | 2017-11-22 | 2018-05-11 | 杭州德联科技股份有限公司 | New distribution type method for controlling frequency conversion based on maincenter temperature and weather compensation |
| CN110486776A (en) * | 2019-08-06 | 2019-11-22 | 山东琅卡博能源科技股份有限公司 | A kind of decoupling flow adjusting device and its method of adjustment |
| CN110736129A (en) * | 2019-10-24 | 2020-01-31 | 北京金房暖通节能技术股份有限公司 | Intelligent balance regulation and control system and method for urban heat supply pipe networks |
| CN112344415A (en) * | 2015-11-04 | 2021-02-09 | 瑞典意昂公司 | Local thermal energy consumer assembly and local thermal energy generator assembly for a district thermal energy distribution system |
| CN112963736A (en) * | 2021-02-22 | 2021-06-15 | 李智才 | Secondary distribution network deep energy-saving diving system and method for heat supply network circulating water pump |
| CN113007783A (en) * | 2021-03-02 | 2021-06-22 | 瑞纳智能设备股份有限公司 | Two-network balance control method based on interval length convergence |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959222A (en) * | 2006-05-22 | 2007-05-09 | 郭新川 | Central heating, energy saving control system for public works |
| CN201251227Y (en) * | 2008-07-29 | 2009-06-03 | 青岛暖易通节能科技有限公司 | Direct-connected intelligent water mixing unit |
| CN202630226U (en) * | 2011-12-27 | 2012-12-26 | 王晋达 | Integral waterproof heating entrance device of equalizer tank for matching with two-stage pump |
| CN103090440A (en) * | 2013-02-19 | 2013-05-08 | 北京唯绿建筑节能科技有限公司 | Thermal station energy saving device with double adjustment functions |
| CN203869151U (en) * | 2013-07-04 | 2014-10-08 | 北京帅安节能设备有限公司 | Heating energy-saving control equipment for office building |
| CN204438289U (en) * | 2015-01-19 | 2015-07-01 | 天津市中天九创科技有限公司 | A kind of heat supply network balance sysmte |
-
2015
- 2015-01-19 CN CN201510023026.2A patent/CN104566596B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959222A (en) * | 2006-05-22 | 2007-05-09 | 郭新川 | Central heating, energy saving control system for public works |
| CN201251227Y (en) * | 2008-07-29 | 2009-06-03 | 青岛暖易通节能科技有限公司 | Direct-connected intelligent water mixing unit |
| CN202630226U (en) * | 2011-12-27 | 2012-12-26 | 王晋达 | Integral waterproof heating entrance device of equalizer tank for matching with two-stage pump |
| CN103090440A (en) * | 2013-02-19 | 2013-05-08 | 北京唯绿建筑节能科技有限公司 | Thermal station energy saving device with double adjustment functions |
| CN203869151U (en) * | 2013-07-04 | 2014-10-08 | 北京帅安节能设备有限公司 | Heating energy-saving control equipment for office building |
| CN204438289U (en) * | 2015-01-19 | 2015-07-01 | 天津市中天九创科技有限公司 | A kind of heat supply network balance sysmte |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344415A (en) * | 2015-11-04 | 2021-02-09 | 瑞典意昂公司 | Local thermal energy consumer assembly and local thermal energy generator assembly for a district thermal energy distribution system |
| CN112344415B (en) * | 2015-11-04 | 2021-11-26 | 瑞典意昂公司 | Local thermal energy consumer assembly and local thermal energy generator assembly for a district thermal energy distribution system |
| CN106016445A (en) * | 2016-05-24 | 2016-10-12 | 河北惠沧节能科技有限公司 | Automatic adjusting system for central heating circular water heat energy supply amount |
| CN107559945A (en) * | 2017-09-25 | 2018-01-09 | 北京京源水仪器仪表有限公司 | A kind of waterpower self-regulation heating system and self-adjusting method |
| CN107726581A (en) * | 2017-11-09 | 2018-02-23 | 华南理工大学建筑设计研究院 | A kind of subscriber access system for regional cooling and heating system |
| CN108019816A (en) * | 2017-11-22 | 2018-05-11 | 杭州德联科技股份有限公司 | New distribution type method for controlling frequency conversion based on maincenter temperature and weather compensation |
| CN110486776A (en) * | 2019-08-06 | 2019-11-22 | 山东琅卡博能源科技股份有限公司 | A kind of decoupling flow adjusting device and its method of adjustment |
| CN110736129A (en) * | 2019-10-24 | 2020-01-31 | 北京金房暖通节能技术股份有限公司 | Intelligent balance regulation and control system and method for urban heat supply pipe networks |
| CN110736129B (en) * | 2019-10-24 | 2021-06-18 | 北京金房暖通节能技术股份有限公司 | Intelligent balance regulation and control system and method for urban heat supply pipe network |
| CN112963736A (en) * | 2021-02-22 | 2021-06-15 | 李智才 | Secondary distribution network deep energy-saving diving system and method for heat supply network circulating water pump |
| CN113007783A (en) * | 2021-03-02 | 2021-06-22 | 瑞纳智能设备股份有限公司 | Two-network balance control method based on interval length convergence |
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Effective date of registration: 20181116 Address after: 300 000 No. 201, Gate 2, Building 27, Orange Cuiyuan, Longshan Road, Hedong District, Tianjin Patentee after: Dong Quanyi Address before: Room 214-1, C1 District, Animation Building, No. 126 Animation Road, Eco-city, Tianjin Binhai New Area, 300000 Patentee before: TIANJIN ZHONGTIAN JIUCHUANG TECHNOLOGY CO., LTD. |
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