CN103615797B - A kind of three grades of temperature control cooling water tanks - Google Patents
A kind of three grades of temperature control cooling water tanks Download PDFInfo
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- CN103615797B CN103615797B CN201310705513.8A CN201310705513A CN103615797B CN 103615797 B CN103615797 B CN 103615797B CN 201310705513 A CN201310705513 A CN 201310705513A CN 103615797 B CN103615797 B CN 103615797B
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- cooling water
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- heater
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Abstract
The present invention relates to a kind of three grades of temperature control cooling water tanks, comprise the casing containing cooling water, the first dividing plate is vertically provided with and casing is separated into the first casing by second partition in casing, second casing and the 3rd casing, in first casing, first heater is installed, bottom is provided with leak-off pipe, top is provided with return pipe and filling pipe, in second casing, secondary heating mechanism is installed, 3rd heater is installed in the 3rd casing, the top of the 3rd wall box is provided with overflow pipe, bottom is provided with water supply line, leak-off pipe is all connected with drainpipe with overflow pipe, first casing communicates with the second bottom half, second casing communicates with the 3rd casing top.The present invention is directed to the temperature control scope of the required cooling water tank of experiment, make full use of the feature of power plant's industry abundant water, directly use the method injecting normal-temperature water to cool recirculated cooling water, compare traditional cooling water tank and decrease compressor, save space.
Description
Technical field
The present invention relates to control field, particularly relate to a kind of for three grades of temperature control cooling water tanks in power plant's tail flue gas local heat transfer.
Background technology
Cooling water tank belongs to the conventional instrument and equipment of industrial circle and scientific research field, needs the occasion of accurate controlled cooling model procedure parameter at some, as in the cavity cooling of laser instrument or some scientific experiment, usually needs the cooling water passing into temperature constant in cooling tube.
Conventional cooling water tank generally has two features: one, cooling water generally recycles, need to lower the temperature to cooling water, the method of cooling uses cooling device often, as compressor cooling or heat exchanger cooling, but, the general volume ratio of these cooling devices is comparatively large, uses extra cooling device to make the water tank natively needing to take very large space heavier, is not suitable for very much using in the place of narrow space; Two, the occasion of cooling water being carried out to accurate temperature controlling is being needed, usual employing be closed loop control method in automatically controlling, this needs the complexity increasing circuit design and control operation on the one hand, on the other hand due to environmental change, need the various setup parameters adjusted in real time to ensure the accuracy of temperature control.
Figure 1 shows that cooling water tank of the prior art, this cooling water tank uses air blast and air exhauster to coordinate and cools cooling water, this cooling water tank needs extra air-blast device and air extractor, increases the volume of cooling water tank, does not possess the function of accurate controlled cooling model coolant-temperature gage simultaneously.
At present, in the research heat transfer characteristic of boiler tail flue gas and the experiment of etching characteristic, in order to study the impact of heat exchanger wall temperature heat exchanger heat exchange property, need to control heat exchanger wall temperature by the temperature of accurate controlled cooling model water.In this experiment, because boiler tail flue gas complicated component, temperature are high, simulated experiment platform difficulty is built in laboratory, so experiment mainly completes in the actual motion environment of power plant, experiment condition is subject to a lot of restriction.Generally closely, operating space is narrow and small for the layout of such as power plant, and the conventional cooling water tank with compressor is not suitable for this workplace; Power plant's experiment condition is simple and crude on the other hand, and environment is noisy, and experimenter wishes to use simple control method as far as possible to complete experiment.
Summary of the invention
The object of the invention is to overcome the problems referred to above, a kind of three grades of temperature control cooling water tanks are provided, experimentally need, for the particular surroundings of power plant, be applicable to the experiment cooling water tank used in power plant.
The technical solution used in the present invention:
A kind of three grades of temperature control cooling water tanks, comprise the casing containing cooling water, the first dividing plate is vertically provided with and casing is separated into the first casing by second partition in casing, second casing and the 3rd casing, in first casing, first heater is installed, bottom is provided with leak-off pipe, top is provided with return pipe and filling pipe, in second casing, secondary heating mechanism is installed, 3rd heater is installed in the 3rd casing, the top of the 3rd wall box is provided with overflow pipe, bottom is provided with water supply line, leak-off pipe is all connected with drainpipe with overflow pipe, first casing communicates with the second bottom half, second casing communicates with the 3rd casing top.
Described overflow pipe be positioned at the sidewall top position of the second casing and its height lower than the height of described second partition, thus make cooling water from the first casing by the second casing to the unidirectional flowing of the 3rd casing.
The volume of the first described casing is greater than the volume of described second casing, and particularly, the volume of the first casing is the twice of the volume of described second casing.The power of described first heater is greater than the power of described secondary heating mechanism, the power of secondary heating mechanism is greater than the power of the 3rd heater, and particularly, the power of described first heater is 4KW, the power of described secondary heating mechanism is 1KW, and the power of the 3rd heater is 500W.
Described dividing plate is all provided with the temperature sensor surveying water temperature in water tank, described water supply line inside is provided with the temperature sensor surveying water supply water temperature.
Described water supply line is provided with the first control valve and water pump, described filling pipe is provided with the second control valve, described leak-off pipe is provided with the 3rd control valve.Each temperature sensor and heater are connected with controller, are controlled by the controller.
The first temperature controller that controller comprises power supply, is connected with described first temperature sensor, the second temperature controller be connected with described second temperature sensor, the 3rd temperature controller be connected with described three-temperature sensor, described first temperature controller is by the work of first heater described in the first Control, described second temperature controller is by secondary heating mechanism work described in the second Control, and the 3rd temperature controller is by the 3rd heater work described in the 3rd Control.
Water supply line is outwards supplied water by water pump.
The beneficial effect that the present invention compared with prior art has:
1) in the power plant's local heat transfer that the present invention relates to, the temperature range of required cooling water is 35 DEG C-80 DEG C, for this temperature control scope, the present invention takes full advantage of the feature of power plant's industry abundant water, the direct method injecting normal-temperature water that uses cools recirculated cooling water, compare traditional cooling water tank and decrease compressor, save space, be suitable for carrying out field experiment use in power plant.
2) waterbox design is three body structures by the present invention, adopt three grades of temperature control designs, use high power heater coarse adjustment temperature in large casing, low-power heating device is used to finely tune temperature in small box, ensure that temperature control efficiency and temperature-controlled precision simultaneously, namely control method without the need to complexity can realize accurate temperature controlling, and error reaches within 0.5 DEG C.
Accompanying drawing explanation
Fig. 1 is existing cooling water tank schematic diagram;
Fig. 2 is the schematic diagram of temperature regulating device in the embodiment of the present invention;
Fig. 3 is the schematic diagram of embodiment of the present invention middle controller.
Wherein, 1. casing, 2. controller, 31. first dividing plates, 32. second partitions, 41. water supply lines, 42. return pipes, 43. filling pipes, 44. drainpipes, 441. leak-off pipe, 442. overflow pipe, 51. first heaters, 52. secondary heating mechanisms, 53. the 3rd heaters, 61. first control valves, 62. second control valves, 63. the 3rd control valves, 71. first temperature sensors, 72. second temperature sensors, 73. three-temperature sensors, 8. water pump, 11. first casings, 12. second casings, 13. the 3rd casings, 21. power supplys, 221. first temperature controllers, 222. second temperature controllers, 223. the 3rd temperature controllers, 231. first relays, 232. second relays, 233. the 3rd relays.
Detailed description of the invention
Further illustrate below in conjunction with embodiment.
Embodiment 1
As shown in Figure 2, the one that the present embodiment provides three grades of temperature control cooling water tanks, comprise the casing 1 containing cooling water, the first dividing plate 31 is vertically provided with and casing is separated into the first casing 11 by second partition 32 in casing 1, second casing 12 and the 3rd casing 13, in first casing 11, first heater 51 is installed, bottom is provided with leak-off pipe 441, top is provided with return pipe 42 and filling pipe 43, in second casing 12, secondary heating mechanism 52 is installed, 3rd heater 53 is installed in the 3rd casing 13, the top of the 3rd casing 13 sidewall is provided with overflow pipe 442, bottom is provided with water supply line 41, leak-off pipe 441 is all connected with drainpipe 44 with overflow pipe 442, first casing 11 communicates with bottom the second casing 12, second casing 12 communicates with the 3rd casing 13 top.
The volume of the first casing 11 is greater than the volume of described second casing 12, and particularly, the volume of the first casing 11 is twices of the volume of described second casing 12.The power of first heater is greater than the power of described secondary heating mechanism, the power of secondary heating mechanism is greater than the power of the 3rd heater, and particularly, the power of described first heater is 4KW, the power of described secondary heating mechanism is 1KW, and the power of described 3rd heater is 500W.
Overflow pipe 442 be positioned at the sidewall top position of described second casing and its height lower than the height of described dividing plate 32, thus make cooling water from the first casing by the second casing to the unidirectional flowing of the 3rd casing.
Water supply line 41 is positioned at the position close to bottom below described second wall box, is externally supplied water by water pump 8.
First dividing plate 31 is provided with the first temperature sensor 71 near the bottom of the side of the first casing 11, for measuring the water temperature in the first casing, second partition 32 is provided with the second temperature sensor 72 near the top of the side of the second casing, for measuring the water temperature in the second casing, described water supply line 41 inside is provided with three-temperature sensor 73.Water supply line 41 is provided with the first control valve 61 and water pump 8, described filling pipe 43 is provided with the second control valve 62, described leak-off pipe 441 is provided with the 3rd control valve 63.Each temperature sensor and heater are connected with controller 2, are controlled by the controller.
Embodiment 2
A kind of three grades of temperature control cooling water tanks, comprise the casing 1 containing cooling water, the first dividing plate 31 is vertically provided with and casing is separated into the first casing 11 by second partition 32 in casing 1, second casing 12 and the 3rd casing 13, in first casing 11, first heater 51 is installed, bottom is provided with leak-off pipe 441, top is provided with return pipe 42 and filling pipe 43, in second casing 12, secondary heating mechanism 52 is installed, 3rd heater 53 is installed in the 3rd casing 13, the top of the 3rd casing 13 sidewall is provided with overflow pipe 442, bottom is provided with water supply line 41, leak-off pipe 441 is all connected with drainpipe 44 with overflow pipe 442, first casing 11 communicates with bottom the second casing 12, second casing 12 communicates with the 3rd casing 13 top.
The volume of the first casing 11 is greater than the volume of described second casing 12, and particularly, the volume of the first casing 11 is twices of the volume of described second casing 12.The power of first heater is greater than the power of described secondary heating mechanism, and particularly, the power of described first heater is 4KW, and the power of described secondary heating mechanism is 1KW.
Overflow pipe 442 be positioned at the sidewall top position of described second casing and its height lower than the height of described dividing plate 3, thus make cooling water from the first casing by the second casing to the unidirectional flowing of the 3rd casing.
Water supply line 41 is positioned at the position close to bottom below described second wall box, is externally supplied water by water pump 8.
First dividing plate 31 is provided with the first temperature sensor 71 on the bottom of the side of the first casing 11, for measuring the water temperature in the first casing, second partition 32 is provided with the second temperature sensor 72 near the top of the side of the second casing, for measuring the water temperature in the second casing, described water supply line 41 inside is provided with three-temperature sensor 73.Water supply line 41 is provided with the first control valve 61 and water pump 8, described filling pipe 43 is provided with the second control valve 62, described leak-off pipe 441 is provided with the 3rd control valve 63.Each temperature sensor and heater are connected with controller, are controlled by the controller.
The first temperature controller 221 that controller comprises power supply 21, is connected with described first temperature sensor 71, the second temperature controller 222 be connected with described second temperature sensor 72, the 3rd temperature controller 223 be connected with described three-temperature sensor 73, described first temperature controller 221 controls the work of described first heater 51 by the first relay 231, described second temperature controller 222 controls described secondary heating mechanism 52 by the second relay 232 and works, and the 3rd temperature controller 223 controls described 3rd heater 53 by the 3rd relay 232 and works.
In the present embodiment, cooling water tank is used for boiler exhaust gas local heat transfer, provides the cooling water of 55 DEG C to heat exchanger tube.Heat exchanger tube is arranged in the flue after boiler air preheater, this section of flue gas in flue temperature is between 110-140 DEG C, by measuring the parameters such as such as inflow temperature, leaving water temperature, cooling water flow, observation heat exchanger tube temperature, seek the impact of the tube wall temperature exchange heat pipe heat exchange property of the heat exchanger tube being arranged in boiler exhaust gas.
The course of work of water tank is as follows: the heating period, close the 3rd control valve 63, first control valve 61 and water pump 8, in water tank, water is filled by moisturizing pipeline, the control temperature of the first temperature controller 221, second temperature controller 222 and the 3rd temperature controller 223 is set as 52 DEG C, heats the cooling water to 52 DEG C in the first casing 11, second casing 12 and the 3rd casing 13.
Working stage, is set as 53 DEG C by the control temperature of the first temperature controller 221, and the control temperature of the second temperature controller 222 is set as 54 DEG C, and the temperature of the 3rd temperature controller 223 is set in 55 DEG C, opens the first control valve 61 and water pump 8.By regulating the flow of inlet water of the aperture controlled cooling model water of the first control valve 61, the heat-transfer character of tube wall under various heat exchange amount can be observed.By changing the first temperature controller 221, second temperature controller 222, the design temperature of the 3rd temperature controller 223 and the flow of filling pipe 43, the water temperature that can control constant temperature water tank works between 40-80 DEG C.
Ending phase, first closes the second control valve 62, opens the water in emptying first casing 11 of the 3rd control valve 63, and after the water in the second casing 12 is drained by water pump 8, switch off the pump 8 and first control valve 61.
Three grades of temperature controlled water tanks that the present embodiment provides, use high power heater coarse adjustment temperature in large casing, using low-power heating device to finely tune temperature in small box, just meeting temperature controlled efficiency and required precision without the need to adopting complex control means simultaneously.
Claims (3)
1. three grades of temperature control cooling water tanks, comprise the casing and controller of containing cooling water, it is characterized in that, the first dividing plate is vertically provided with and casing is separated into the first casing by second partition in casing, second casing and the 3rd casing, in first casing, first heater is installed, bottom is provided with leak-off pipe, top is provided with return pipe and filling pipe, in second casing, secondary heating mechanism is installed, 3rd heater is installed in the 3rd casing, the top of the 3rd wall box is provided with overflow pipe, bottom is provided with water supply line, leak-off pipe is all connected with drainpipe with overflow pipe, first casing communicates with the second bottom half, second casing communicates with the 3rd casing top,
The volume of described first casing is greater than the volume of described second casing;
The power of described first heater is greater than the power of described secondary heating mechanism.
2. a kind of three grades of temperature control cooling water tanks according to claim 1, it is characterized in that, the first described dividing plate is provided with the first temperature sensor of water temperature in survey first casing, described second partition is provided with the second temperature sensor of water temperature in survey second casing, described water supply line inside is provided with the three-temperature sensor surveying water supply water temperature, described water supply line is provided with the first control valve and water pump, described filling pipe is provided with the second control valve, described leak-off pipe is provided with the 3rd control valve, each temperature sensor and heater are connected with controller, be controlled by the controller.
3. a kind of three grades of temperature control cooling water tanks according to claim 2, it is characterized in that, the first temperature controller that controller comprises power supply, is connected with described first temperature sensor, the second temperature controller be connected with described second temperature sensor, the 3rd temperature controller be connected with described three-temperature sensor, described first temperature controller is by the work of first heater described in the first Control, described second temperature controller is by secondary heating mechanism work described in the second Control, and the 3rd temperature controller is by the 3rd heater work described in the 3rd Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705513.8A CN103615797B (en) | 2013-12-19 | 2013-12-19 | A kind of three grades of temperature control cooling water tanks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705513.8A CN103615797B (en) | 2013-12-19 | 2013-12-19 | A kind of three grades of temperature control cooling water tanks |
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| Publication Number | Publication Date |
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| CN103615797A CN103615797A (en) | 2014-03-05 |
| CN103615797B true CN103615797B (en) | 2016-02-24 |
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| CN201310705513.8A Expired - Fee Related CN103615797B (en) | 2013-12-19 | 2013-12-19 | A kind of three grades of temperature control cooling water tanks |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106957141B (en) * | 2017-04-01 | 2022-12-27 | 海控三鑫(蚌埠)新能源材料有限公司 | Cooling water heating constant temperature equipment of production two matte glass calender |
| CN109433287A (en) * | 2018-09-27 | 2019-03-08 | 天津航天瑞莱科技有限公司 | A kind of cooling water tank with heat preservation temperature controlling function |
| CN112642611A (en) * | 2020-12-21 | 2021-04-13 | 温岭温高教育科技有限公司 | Small temperature-controllable medicine spraying kettle |
| CN115127261A (en) * | 2022-06-01 | 2022-09-30 | 浙江中烟工业有限责任公司 | Three-stage water tank for two-stage efficient utilization of cooling water of process air conditioner water chilling unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145351Y (en) * | 2007-12-24 | 2008-11-05 | 刘新生 | Indoor intelligent hydroelectric heating warmer |
| CN201589402U (en) * | 2010-01-19 | 2010-09-22 | 王雪峰 | Cold water recovery-type water heater |
| CN203642460U (en) * | 2013-12-19 | 2014-06-11 | 山东大学 | Three-level temperature-control cooling water tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050048565A (en) * | 2005-04-27 | 2005-05-24 | 송재섭 | Bath hot water heating method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145351Y (en) * | 2007-12-24 | 2008-11-05 | 刘新生 | Indoor intelligent hydroelectric heating warmer |
| CN201589402U (en) * | 2010-01-19 | 2010-09-22 | 王雪峰 | Cold water recovery-type water heater |
| CN203642460U (en) * | 2013-12-19 | 2014-06-11 | 山东大学 | Three-level temperature-control cooling water tank |
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Granted publication date: 20160224 Termination date: 20181219 |