CN105043129A - Method for automatically judging whether cooling tower needs maintenance - Google Patents
Method for automatically judging whether cooling tower needs maintenance Download PDFInfo
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- CN105043129A CN105043129A CN201510355616.5A CN201510355616A CN105043129A CN 105043129 A CN105043129 A CN 105043129A CN 201510355616 A CN201510355616 A CN 201510355616A CN 105043129 A CN105043129 A CN 105043129A
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- cooling tower
- early warning
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Abstract
The invention relates to the field of building air conditioning cooling towers, in particular to a method for automatically judging whether a cooling tower needs maintenance. A water outlet temperature sensor is arranged on a water outlet pipeline of the cooling tower, and an environment web bulb sensor is arranged outside the cooling tower. The method comprises the steps that 1, the initial difference value between the web bulb temperature of the environment and the water outlet temperature of the cooling tower under normal operation conditions is read, and the total number of times of sampling early warning is set; 2, the difference value between the real-time water outlet temperature of the cooling tower and the real-time web bulb temperature of the environment is collected; when the difference value is smaller than the double of the initial difference value, the step 1 is executed again; when the difference value is larger than or equal to the double of the initial difference value, early warning is recorded once; when the number of times of early warning is equal to total number of times of sampling early warning, the cooling tower is maintained; and otherwise, the cooling tower does not need to be maintained, and cycle monitoring continues. According to the method, measurement is precise, and the error rate is low. By the adoption of the method, problems can be timely and effectively found, unnecessary relevant losses are avoided, and therefore the later-period maintenance cost is lowered.
Description
Technical field
The present invention relates to building air conditioning cooling tower field, be specifically related to a kind of automatic decision cooling tower the need of the method safeguarded.
Background technology
Along with society is to energy-conservation demand, building energy conservation accounting is comparatively large, and in building energy conservation, air-conditioning accounting is maximum.
Cooling tower (Thecoolingtower) uses water as circulating coolant, is from a system, to absorb heat dissipation in air, to reduce the device of water temperature; Its operation principle carries out cold and hot exchange after utilizing water and air to flow to contact to produce steam, steam volatile zone walks heat, reach the modes such as evaporative heat loss, convection heat transfer' heat-transfer by convection and radiant heat transfer, leave the waste heat produced in refrigeration air-conditioner, thus reduce the evaporating radiator of water temperature, to ensure the normal operation of system, device is generally tubbiness, and therefore named is cooling tower.
Cooling tower plays important thermolysis in the air-conditioning system of building, and the situation direct relation of cooling tower the whether normal operation of air-conditioning system.For this reason, need attendant regularly to climb on cooling tower and carry out site inspection and confirmation, such drawback one is dangerous, and two find when being and going wrong not prompt enough, and three is that the maintenance cost in later stage is larger.
Summary of the invention
According to the deficiencies in the prior art, the invention provides a kind of judge cooling tower the need of safeguard method, can be pinpointed the problems in advance timely and effectively by the method, avoid unnecessary associated loss, thus reduce later maintenance cost.
Technical scheme of the present invention is: a kind of judge cooling tower the need of safeguard method, its agent structure is that cooling tower top is provided with motor, and sidepiece is provided with cooling tower inlet pipeline, and bottom is provided with cooling tower outlet pipeline; Described cooling tower outlet pipeline is provided with leaving water temperature sensors, and described cooling tower is outside equipped with ambient wet bulb sensor, and operating procedure is as follows:
(1) ambient wet bulb temperature under reading normal operating conditions and the initial difference of cooling tower leaving water temperature, setting sampling early warning total degree;
(2) difference of the real-time leaving water temperature of cooling tower and environment real-time wet bulb temperature is gathered; When difference is less than the initial difference of twice, then repeat step (1); When difference is more than or equal to the initial difference of twice, be denoted as an early warning, after early warning number of times equals sampling early warning total degree, then carry out the maintenance of cooling tower, otherwise do not need to safeguard cooling tower, continue circulatory monitoring.
Preferred version is as follows:
Sampling early warning total degree is 6-8 time.
The time of sampling is 45-60 minute at every turn.For the different working time of different factory, and different sampling requests arranges sampling early warning total degree and sampling time.
Specific works principle:
Cooling water under the effect of water pump, enters into cooling tower by inlet pipeline, then sprays from cooling tower eminence after absorbing the heat of air-conditioner set release; The motor rotation on cooling tower top, drives connected blower fan, is sucked the bottom of unsaturated air from cooling tower, discharges from top; Cooling water is with the contact process of air, and part cooling water evaporation and become steam by air and take away, in the process of evaporation, can absorb a large amount of heat, thus the thermal release of the air-conditioner set absorbed by cooling water is in air.In theory, if the heat exchange of cooling tower is abundant, so the leaving water temperature of cooling water is the wet-bulb temperature that can equal environment.But, in fact can there is certain temperature difference in the leaving water temperature of cooling water and the wet-bulb temperature of air, therefore whether the present invention utilizes the size of the leaving water temperature of cooling water and the difference of ambient wet bulb temperature normal to judge the duty of cooling tower, thus judges whether to need to safeguard cooling tower.
Wherein, cooling tower needs the problem safeguarded to comprise blower fan of cooling tower and go wrong, or water quality goes wrong, or cooling tower outlet is dirty stifled etc.
The invention provides a kind of judge cooling tower the need of safeguard method, measure rigorous, fault rate is low, can be pinpointed the problems in advance timely and effectively by the method, avoids unnecessary associated loss, thus reduces later maintenance cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is schematic flow sheet of the present invention;
Fig. 2 is agent structure schematic diagram of the present invention;
In figure: 1: cooling tower, 2: ambient wet bulb sensor, 3: leaving water temperature sensors, 4: outlet pipeline, 5: inlet pipeline, 6: motor;
T
a0: the ambient wet bulb temperature under normal operating conditions, T
b0: the cooling tower leaving water temperature under normal operating conditions, C: initial difference, S: sampling early warning total degree, i: Real-Time Monitoring is numbered, I: early warning number of times, T
ai: environment real-time wet bulb temperature, T
bi: the real-time leaving water temperature of cooling tower, B
i: the difference of the real-time leaving water temperature of cooling tower and environment real-time wet bulb temperature.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and the present embodiment is described in further detail, but the present invention is not limited to specific embodiment.
Embodiment 1:
Judge that cooling tower 1 is the need of the method safeguarded, its agent structure is that cooling tower 1 top is provided with motor 6, and sidepiece is provided with cooling tower 1 inlet pipeline 5, and bottom is provided with cooling tower 1 outlet pipeline 4; Described cooling tower 1 outlet pipeline 4 is provided with leaving water temperature sensors 3, and described cooling tower 1 is outside equipped with ambient wet bulb sensor 2, and operating procedure is as follows:
(1) the ambient wet bulb temperature T under normal operating conditions is read
a0with cooling tower 1 leaving water temperature T
b0, and calculating initial difference C, setting sampling early warning total degree S is 6, and each sampling time is 60 minutes.
(2) cooling tower 1 leaving water temperature T is in real time gathered
b1with environment real-time wet bulb temperature T
a1difference B
i; Work as B
iwhen being less than 2C, after Real-Time Monitoring numbering adds one, repeat step (1); Work as B
1when being more than or equal to 2C, be denoted as an early warning, after early warning number of times I equals 6, then carry out the maintenance of cooling tower 1, otherwise do not need to safeguard cooling tower 1, continue circulatory monitoring.
Specific works principle:
Cooling water under the effect of water pump, enters into cooling tower 1 by inlet pipeline 5, then sprays from cooling tower 1 eminence after absorbing the heat of air-conditioner set release; The motor 6 on cooling tower 1 top operates, and drives connected blower fan, is sucked the bottom of unsaturated air from cooling tower 1, discharges from top; Cooling water is with the contact process of air, and part cooling water evaporation and become steam by air and take away, in the process of evaporation, can absorb a large amount of heat, thus the thermal release of the air-conditioner set absorbed by cooling water is in air.In theory, if the heat exchange of cooling tower 1 is abundant, so leaving water temperature T of cooling water
bithe wet-bulb temperature T that can equal environment
ai.But, the in fact leaving water temperature T of cooling water
biwith the wet-bulb temperature T of air
aican there is certain temperature difference, therefore the present invention is the leaving water temperature T utilizing cooling water
biwith ambient wet bulb temperature T
aidifference B
isize judge that the duty of cooling tower 1 is whether normal, thus judge whether to need to safeguard cooling tower 1.
Wherein, cooling tower 1 needs the problem safeguarded to comprise cooling tower 1 blower fan and go wrong, or water quality goes wrong, or outlet pipeline 4 is dirty stifled, or inlet pipeline 5 is dirty stifled etc.
The invention provides a kind of judge cooling tower 1 the need of safeguard method, measure rigorous, fault rate is low, is pinpointed the problems in advance timely and effectively by the method, avoids unnecessary associated loss, thus reduces later maintenance cost.
Above-described is only the preferred embodiment of the present invention, should be understood that for a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these all can not affect effect of the invention process and practical applicability.
Claims (3)
1. judge that cooling tower is the need of the method safeguarded, agent structure is that cooling tower top is provided with motor, and sidepiece is provided with cooling tower inlet pipeline, and bottom is provided with cooling tower outlet pipeline; It is characterized in that: described cooling tower outlet pipeline is provided with leaving water temperature sensors, and described cooling tower is outside equipped with ambient wet bulb sensor; Operating procedure is as follows:
(1) ambient wet bulb temperature under reading normal operating conditions and the initial difference of cooling tower leaving water temperature, setting sampling early warning total degree;
(2) difference of the real-time leaving water temperature of cooling tower and environment real-time wet bulb temperature is gathered; When difference is less than the initial difference of twice, then repeat step (1); When difference is more than or equal to the initial difference of twice, be denoted as an early warning, after early warning number of times equals sampling early warning total degree, then carry out the maintenance of cooling tower, otherwise do not need to safeguard cooling tower, continue circulatory monitoring.
2. according to claim 1 a kind of judge cooling tower the need of safeguard method, it is characterized in that: described sampling early warning total degree is 6-8 time.
3. according to claim 1ly a kind ofly judge that cooling tower is the need of the method safeguarded, is characterized in that: time of described sampling is 45-60 minute at every turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355616.5A CN105043129B (en) | 2015-06-24 | 2015-06-24 | Whether a kind of automatic decision cooling tower needs the method safeguarded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355616.5A CN105043129B (en) | 2015-06-24 | 2015-06-24 | Whether a kind of automatic decision cooling tower needs the method safeguarded |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105043129A true CN105043129A (en) | 2015-11-11 |
| CN105043129B CN105043129B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510355616.5A Active CN105043129B (en) | 2015-06-24 | 2015-06-24 | Whether a kind of automatic decision cooling tower needs the method safeguarded |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163599A (en) * | 2018-10-31 | 2019-01-08 | 上海大众祥源动力供应有限公司 | A kind of cooling tower monitoring system and its application |
| CN110953684A (en) * | 2019-12-20 | 2020-04-03 | 珠海格力电器股份有限公司 | Control method of air conditioner cooling system and air conditioner |
| CN117109354A (en) * | 2023-10-23 | 2023-11-24 | 国联江森自控绿色科技(无锡)有限公司 | Operation and maintenance management system for evaporative cooling equipment |
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| CN1963369A (en) * | 2005-11-10 | 2007-05-16 | 矿昱科技股份有限公司 | Evaporation type sealed cooling cistern |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163599A (en) * | 2018-10-31 | 2019-01-08 | 上海大众祥源动力供应有限公司 | A kind of cooling tower monitoring system and its application |
| CN110953684A (en) * | 2019-12-20 | 2020-04-03 | 珠海格力电器股份有限公司 | Control method of air conditioner cooling system and air conditioner |
| CN117109354A (en) * | 2023-10-23 | 2023-11-24 | 国联江森自控绿色科技(无锡)有限公司 | Operation and maintenance management system for evaporative cooling equipment |
| CN117109354B (en) * | 2023-10-23 | 2024-01-05 | 国联江森自控绿色科技(无锡)有限公司 | Operation and maintenance management system for evaporative cooling equipment |
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|---|---|
| CN105043129B (en) | 2017-12-12 |
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Effective date of registration: 20190128 Address after: Unit 101, No. 56, No. 4, Zaoyuan Road, Licang District, Qingdao City, Shandong Province Patentee after: Qingdao Zhongzeng Energy Technology Co., Ltd. Address before: 266000 Room 1205, Xiwang Building, 138 Dunhua Road, North District, Qingdao City, Shandong Province Patentee before: Energy conservation service engineering science and technology Co., Ltd is newly made every effort to open up in Shandong |
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