CN105090750A - Chemical circulating water system pipe network optimization method - Google Patents
Chemical circulating water system pipe network optimization method Download PDFInfo
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- CN105090750A CN105090750A CN201410192398.3A CN201410192398A CN105090750A CN 105090750 A CN105090750 A CN 105090750A CN 201410192398 A CN201410192398 A CN 201410192398A CN 105090750 A CN105090750 A CN 105090750A
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Abstract
The invention relates to a chemical circulating water system pipe network optimization method. The chemical circulating water system pipe network optimization method comprises the steps of installing temperature sensors on a circulating water system pipe network water supply main pipe and a water return pipe of each heat exchange node, installing an electric valve and a control system on the water return pipe of each heat exchange node, acquiring and analyzing temperatures of the circulating water system pipe network water supply main pipe and each heat exchange node, and determining the opening of the electric valves to balance the supply and return water temperature difference of each heat exchange node by acquiring and analyzing the temperatures of the circulating water system pipe network water supply main pipe and each heat exchange node. By using the method provided by the invention, the phenomena that the energy consumption of an existing chemical circulating water system is high and the supply and return water temperature difference of each heat exchange node is great are overcome, and the effects of balancing the supply and return water temperature difference of each heat exchange node and reducing the energy consumption of the circulating water system are achieved.
Description
Technical field
The present invention relates to a kind of pipe network optimization method, be related specifically to a kind of chemical industry circulation pipe network optimization method.
Background technique
In existing chemical circulation water system, each heat exchange node is due to height of delivery difference, and the water output of heat transmission equipment and drag losses difference, cause the return water temperature of each heat exchange node to have larger difference.On each heat exchange node, little the having of supply backwater temperature difference is low to moderate 1 degree Celsius, and large has more than 10 degrees Celsius, create part heat exchange node water supply flow to have more than needed, the situation that part heat exchange node water supply flow is inadequate, have impact on the normal operation of equipment, increases the energy consumption of system.
Summary of the invention
The object of the present invention is to provide a kind of chemical circulation water system pipe network optimization method, overcome existing chemical circulation water system energy consumption high, the phenomenon that each heat exchange node supply backwater temperature difference difference is large, reaches each heat exchange node supply backwater temperature difference of balance, reduces the effect of circulation energy consumption.
In order to realize above object, the invention provides a kind of chemical circulation water system pipe network optimization method, mounting temperature sensor on the water return pipeline being included in circulation pipe network water supply house steward and each heat exchange node, the water return pipeline of each heat exchange node installs electric valve and control system, to collection, the analysis of described circulation pipe network water supply house steward and each heat exchange node temperature, by the collection to circulation pipe network water supply house steward and each heat exchange node temperature, analysis, to determine electric valve aperture, balance the confession of each heat exchange node, backwater temperature difference.
Further, the described collection to circulation pipe network water supply house steward and each heat exchange node temperature, comprises the collection to feed main's supply water temperature T1 and each heat exchange node return water temperature T2.
Further, by the collection to circulation pipe network water supply house steward and each heat exchange node temperature, analysis, to determine electric valve aperture, balance the confession of each heat exchange node, backwater temperature difference step as follows:
Relatively feed main supply water temperature T1 and each heat exchange node return water temperature T2,
If (T2-T1) the heat exchange node of < 5 DEG C, feedback signal is to control system, corresponding electric valve is regulated by control system, within every 5 minutes, reduce 1 ° of valve opening, reduce this heat exchange node water supply flow, increase supply backwater temperature difference, during as 5 DEG C≤(T2-T1)≤7 DEG C, stop regulating;
If (T2-T1) the heat exchange node of > 7 DEG C, feedback signal is to control system, corresponding electric valve is regulated by control system, within every 5 minutes, increase 1 ° of valve opening, increase this heat exchange node water supply flow, reduce supply backwater temperature difference, when 5 DEG C≤(t2i-t1)≤7 DEG C, stop regulating.
The beneficial effect that the present invention produces is: make chemical circulation water system be in transient equiliblium all the time, eliminate the phenomenon that chemical circulation water system each heat exchange node supply backwater temperature difference difference is large, ensure that the Security of production and the high efficiency of system.
Accompanying drawing explanation
Fig. 1 is pipe network structure schematic diagram of the present invention.
Wherein: 1: feed main;
2: the temperature transducer of feed main;
31,32,33,34,35,36: heat exchange node;
41,42,43,44,45,46: the water return pipeline of heat exchange node;
51,52,53,54,55,56: the temperature transducer of heat exchange node;
61,62,63,64,65,66: electric valve;
71,72,73,74,75,76: control system.
Embodiment
Below in conjunction with accompanying drawing, for a heat exchange node, the specific embodiment of the present invention is further described.
Mounting temperature sensor 2 on the feed main 1 of circulation pipe network, the supply water temperature T1 of monitoring pipe network, and on the return pipe 41 of heat exchange node 31 mounting temperature sensor 51, electric valve 61 and control system 71 are installed, in order to monitor the return water temperature T2 of heat exchange node.During for (T2-T1) < 5 DEG C, feedback signal is to control system 71, electric valve 61 is regulated by control system 71, within every 5 minutes, reduce 1 ° of valve opening, reduce water supply flow, increase supply backwater temperature difference, until during 5 DEG C≤(T2-T1)≤7 DEG C, stop regulating.As (T2-T1) > 7 DEG C, feedback signal is to control system 71, electric valve 61 is regulated by control system 71, within every 5 minutes, increase 10 valve openings, increase 1 water supply flow, reduce supply backwater temperature difference, when 5 DEG C≤(T2-T1)≤7 DEG C, stop regulating.This method is applicable to the adjustment of each heat exchange node above, and consequently, make the temperature difference for backwater be in rational scope, chemical circulation water system is in transient equiliblium all the time, eliminates the phenomenon that each heat exchange node supply backwater temperature difference difference is large.Ensure that the Security of production and the high efficiency of system.Meanwhile, the setting for temperature can adjust accordingly according to actual required process parameter.The control of each electric valve also can do unified control according to the requirement of automation.
Claims (3)
1. a chemical circulation water system pipe network optimization method, mounting temperature sensor on the water return pipeline being included in circulation pipe network water supply house steward and each heat exchange node, the water return pipeline of each heat exchange node installs electric valve and control system, to collection, the analysis of described circulation pipe network water supply house steward and each heat exchange node temperature, it is characterized in that, by the collection to circulation pipe network water supply house steward and each heat exchange node temperature, analysis, to determine electric valve aperture, balance the confession of each heat exchange node, backwater temperature difference.
2. chemical circulation water system pipe network optimization method according to claim 1, it is characterized in that: the described collection to circulation pipe network water supply house steward and each heat exchange node temperature, comprises the collection to feed main's supply water temperature T1 and each heat exchange node return water temperature T2, analysis.
3. chemical circulation water system pipe network optimization method according to claim 1, it is characterized in that: by the collection to circulation pipe network water supply house steward and each heat exchange node temperature, analysis, to determine electric valve aperture, balance the confession of each heat exchange node, backwater temperature difference step as follows:
Relatively feed main supply water temperature T1 and each heat exchange node return water temperature T2,
If (T2-T1) the heat exchange node of < 5 DEG C, feedback signal is to control system, corresponding electric valve is regulated by control system, within every 5 minutes, reduce 1 ° of valve opening, reduce this heat exchange node water supply flow, increase supply backwater temperature difference, when 5 DEG C≤(T2-T1)≤7 DEG C, stop regulating;
If (T2-T1) the heat exchange node of > 7 DEG C, feedback signal is to control system, corresponding electric valve is regulated by control system, within every 5 minutes, increase 1 ° of valve opening, increase this heat exchange node water supply flow, reduce supply backwater temperature difference, when 5 DEG C≤(t2i-t1)≤7 DEG C, stop regulating.
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| CN201410192398.3A CN105090750A (en) | 2014-05-05 | 2014-05-05 | Chemical circulating water system pipe network optimization method |
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| CN201410192398.3A CN105090750A (en) | 2014-05-05 | 2014-05-05 | Chemical circulating water system pipe network optimization method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111006134A (en) * | 2019-12-02 | 2020-04-14 | 江苏泓润生物质能科技有限公司 | Distribution system and method of waste heat circulating cooling liquid |
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| US20100064699A1 (en) * | 2005-11-30 | 2010-03-18 | Llurens Gerard | Refrigeration-generation solar unit for an air-conditioning system, heat-generation solar unit, corresponding devices and corresponding control method |
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| CN111006134A (en) * | 2019-12-02 | 2020-04-14 | 江苏泓润生物质能科技有限公司 | Distribution system and method of waste heat circulating cooling liquid |
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Address after: USB era Center No. 80 Hangzhou 310012 Zhejiang province Xihu District Pingshui Street No. 1 building 17 layer Applicant after: Zhejiang annaijie Polytron Technologies Inc Address before: 310023 Hangzhou, Zhejiang Province, Xixi Road, No. 788 Huatai Industrial Park, building 31, Applicant before: HANGZHOU ENERGY TECHNOLOGY CO., LTD. |
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Application publication date: 20151125 |
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