CN1361389A - Initial cold-state regulating process for hot water heat-supply system - Google Patents
Initial cold-state regulating process for hot water heat-supply system Download PDFInfo
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- CN1361389A CN1361389A CN 00134350 CN00134350A CN1361389A CN 1361389 A CN1361389 A CN 1361389A CN 00134350 CN00134350 CN 00134350 CN 00134350 A CN00134350 A CN 00134350A CN 1361389 A CN1361389 A CN 1361389A
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Abstract
The initial cold-state regulating process for hot water heat-supply system includes the steps of: testing the initial or trial operating state of heat source, heat network and heat users; drawing practical water pressure diagram before initial regulation; regulating valves in pipeline to make the water flow and pressure drop of the boilers approach the parameters in drawing of the boiler manufacturer; re-testing the operating state of heat source and heat network; determining the water flow amounts of the branches to different subzones based building heat consumption, water supply temperature and back water temperature and regulating via manual valves; and regulating the pressure difference between the water supply and back water in heat user wells to standard 0.02+/-0.005 MPa. The regulating process may be performed during non-heating season and can ensure the homogeneous heat supply.
Description
The present invention relates to heating power heating, specifically a kind of initial cold-state regulating process for hot water heat-supply system.
In the prior art, (claim to install not only regulate) regulated and to be divided into just and to regulate to the heat supply of hot-water heating system and (but also claiming to use adjusting) regulated in operation.Just regulating is between the hot trial run period of equipment such as boiler, by regulating the first time that installation unit carries out, each hot user's discharge (heat) is reached or near design discharge.Winter, hot just the adjusting had many difficulties: the weather is cold and the ground is frozen, and heating agent (hot water) scalds the people, and the commissioning staff often is with (top) water operation; Find that the problem that heat supply network exists can not in time solve, and influences heating effect; Methods such as flow, temperature, the temperature difference are regulated in the general employing of this in addition hot adjusting just respectively, usually take place because apart from the cool hot uneven state of because users heating; In China, there is heating enterprise more than 95% not realize that microcomputer monitors automatically at present, so hydraulic regime imbalance ubiquity.
In order to overcome above-mentioned deficiency, the purpose of this invention is to provide a kind of can carry out at non-heating period, even initial cold-state regulating process for hot water heat-supply system of being benefited of the hot user of assurance.
Technical scheme of the present invention is: operating procedure is: a. test thermal source, heat supply network and hot user's original operating condition or trial run operating mode; B. draw the preceding actual hydraulic pressure figure of cold conditions initial adjustment; C. regulate pipe valve, make discharge, the pressure of each boiler fall with the boiler maker drawing on the parameter indicated close; D. test the operating condition of thermal source, heat supply network again; E. determine the discharge of each sub-district heat supply network branch line by building heat consumption, supply backwater temperature difference, transfer with manual modulation valve; F. the backwater pressure reduction that supplies in hot user's well is transferred to standard value 0.02 ± 0.005MPa;
In addition, step f is described will transfer to standard value based on adjustable type for backwater pressure reduction in hot user's well: Δ P=SG
2, wherein: Δ P is the pressure loss (Pa) of heat supply network pipeline section; G is the discharge (m of heat supply network pipeline section
3/ h); S is that the resistance of heat supply network pipeline section is counted Pa/[(m
3/ h)
2]; S value representation heat supply network pipeline section is passing through 1m
3Pressure loss during/h discharge; Step f is described to transfer to standard value with the backwater pressure reduction that supplies in hot user's well, adopts the portable supersonic flowmeter.
The present invention has following advantage:
1. the inventive method is carried out at non-heating period (spring, summer, autumn), belonging to cold conditions just regulates, boiler misfires, water treatment system, coaling system and remove slag system and all do not move, both helped the enforcement of regulative mode, do not influence " heating effect " again, but submersible setting pressure table bases etc. can not cause scald.
2. the present invention does not need big measuring appratus, instrument, have convenient, fast, save time, laborsaving, characteristics such as expense is cheap, energy savings.The energy-conservation problem of finding and solve the heating network existence in advance of cold conditions initial adjustment, guarantee the heat supply in winter effect, tangible economic benefit is arranged, the problem of central heating industry difficult charge can obtain alleviation to a certain degree, because hot user's far away heating installation heat apart from the boiler room, after promptly just regulating, solved the heating equalization problem, so rate of charge has improved by cold conditions.
3. applied range.The present invention both had been applicable to newly-built heating network, also was applicable to the heating network that builds up for many years, has problem uneven in temperature, had thoroughly solved hot user's hydraulic regime imbalance.
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment
To the pilot production of the Inner Mongol one heat supply unit be: a. test thermal source, heat supply network and hot user's original operating condition or trial run operating mode with this invention operating procedure; B. draw the preceding actual hydraulic pressure figure of cold conditions initial adjustment; C. regulate pipe valve, make discharge, the pressure of each boiler fall with the boiler maker drawing on the parameter indicated close; D. test the operating condition of thermal source, heat supply network again; E. by the building heat consumption, supply backwater temperature difference is determined the discharge of each sub-district heat supply network branch line, transfers with manual modulation valve; F. the backwater pressure reduction that supplies in hot user's well is transferred to standard value 0.02 ± 0.005MPa;
In addition, step f is described will transfer to standard value based on adjustable type for backwater pressure reduction in hot user's well: Δ P=SG
2, wherein: Δ P is the about pressure loss of heat supply network pipeline section (Pa); G is the discharge (m of heat supply network pipeline section
3/ h); S is that the resistance of heat supply network pipeline section is counted Pa/[(m
3/ h)
2]; S value representation heat supply network pipeline section is passing through 1m
3Pressure loss during/h discharge; Step f is described to transfer to standard value with the backwater pressure reduction that supplies in hot user's well, adopts the portable supersonic flowmeter.
Consequently enlarge heating area 100,000 m
2, save more than 200 ten thousand yuan of thermal source construction funds, economize on coal 1,500,000 yuan (economize on electricity, water saving be meters not) overcharge 4,200,000 yuan of heating costs every year, create 7,700,000 yuan of economic benefits, and originally the problem of the terminal heating installation of heat supply network not hot (underheat) is able to thorough solution.
China technology department of urban heating association invites expert, the professor of units such as Tsing-Hua University, Chinese Research Institute for Building Sciences, the first adjusting technology of cold conditions is identified, expert opinion: " the first adjusting of heating system is the important step of heating operation; carrying out cold conditions adjusting just at non-heating period is to regulate theory according to heating system to carry out, and its foundation is scientific and rational "." adopt cold conditions just to regulate first in China, and obtained success, occupy advanced international level." " cold conditions just is adjusted in non-heating period carries out, and can find and solve the problem that heat supply network exists in advance, helps the enforcement of regulative mode, guarantees heating quality, has tangible economic benefit, energy-saving benefit and social benefit, is worthy to be popularized ".
Further, adopt the present invention in Liaoning Province man heat supply company on probation, before cold conditions is just regulated, apart from the boiler room near hot user's heating installation heat just, the hot user heating installation far away apart from the boiler room is just not warm, after cold conditions was just regulated, far away, near hot user is heat.
In addition, actual hydraulic pressure figure more complicated before the drafting cold conditions of the present invention initial adjustment, other has a kind ofly needn't draw pressure diagram, also without ultrasonic flow instrument, needn't know the method that cold conditions that heating area and discharge can carry out just regulates and more can be used widely in practice.
Claims (3)
1. initial cold-state regulating process for hot water heat-supply system is characterized in that operating procedure is:
A. test thermal source, heat supply network and hot user's original operating condition or trial run operating mode;
B. draw the preceding actual hydraulic pressure figure of cold conditions initial adjustment;
C. regulate pipe valve, make discharge, the pressure of each boiler fall with the boiler maker drawing on the parameter indicated close;
D. test the operating condition of thermal source, heat supply network again;
E. determine the discharge of each sub-district heat supply network branch line by building heat consumption, supply backwater temperature difference, transfer with manual modulation valve;
F. the backwater pressure reduction that supplies in hot user's well is transferred to standard value 0.02 ± 0.005MPa.
2. according to the described initial cold-state regulating process for hot water heat-supply system of claim 1, it is characterized in that: step f is described will to transfer to standard value based on adjustable type for backwater pressure reduction in hot user's well: Δ P=SG
2, wherein: Δ P is the pressure loss (Pa) of heat supply network pipeline section; G is the discharge (m of heat supply network pipeline section
3/ h); S is that the resistance of heat supply network pipeline section is counted Pa/[(m
3/ h)
2]; S value representation heat supply network pipeline section is passing through 1m
3Pressure loss during/h discharge.
3. according to claim 1 or 2 described initial cold-state regulating process for hot water heat-supply system, it is characterized in that: step f is described to transfer to standard value with the backwater pressure reduction that supplies in hot user's well, adopts the portable supersonic flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00134350 CN1125273C (en) | 2000-12-25 | 2000-12-25 | Initial cold-state regulating process for hot water heat-supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00134350 CN1125273C (en) | 2000-12-25 | 2000-12-25 | Initial cold-state regulating process for hot water heat-supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1361389A true CN1361389A (en) | 2002-07-31 |
| CN1125273C CN1125273C (en) | 2003-10-22 |
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ID=4596183
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00134350 Expired - Fee Related CN1125273C (en) | 2000-12-25 | 2000-12-25 | Initial cold-state regulating process for hot water heat-supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825207B (en) * | 2009-03-07 | 2011-10-26 | 张宇 | Energy-saving flow automatic regulator and application method thereof in heat supply network flow regulation |
| CN104180433A (en) * | 2013-05-28 | 2014-12-03 | 杭州三花研究院有限公司 | Hydraulic balance control method and system for secondary circulation |
| CN105020897A (en) * | 2014-04-28 | 2015-11-04 | 樱花卫厨（中国）股份有限公司 | Heating water heater with pilot run mode |
| CN106168412A (en) * | 2015-05-20 | 2016-11-30 | 豪威株式会社 | Warm water feedway and warm water supply method |
-
2000
- 2000-12-25 CN CN 00134350 patent/CN1125273C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825207B (en) * | 2009-03-07 | 2011-10-26 | 张宇 | Energy-saving flow automatic regulator and application method thereof in heat supply network flow regulation |
| CN104180433A (en) * | 2013-05-28 | 2014-12-03 | 杭州三花研究院有限公司 | Hydraulic balance control method and system for secondary circulation |
| CN105020897A (en) * | 2014-04-28 | 2015-11-04 | 樱花卫厨（中国）股份有限公司 | Heating water heater with pilot run mode |
| CN105020897B (en) * | 2014-04-28 | 2018-08-31 | 樱花卫厨（中国）股份有限公司 | Water heater for heating with test/trial running mode |
| CN106168412A (en) * | 2015-05-20 | 2016-11-30 | 豪威株式会社 | Warm water feedway and warm water supply method |
| CN106168412B (en) * | 2015-05-20 | 2020-11-03 | 豪威株式会社 | Hot water supply device and hot water supply method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125273C (en) | 2003-10-22 |
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