CN102705807B - Steam water heating unit based on PID (proportional-integral-derivative) controller - Google Patents
Steam water heating unit based on PID (proportional-integral-derivative) controller Download PDFInfo
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- CN102705807B CN102705807B CN201210162290.0A CN201210162290A CN102705807B CN 102705807 B CN102705807 B CN 102705807B CN 201210162290 A CN201210162290 A CN 201210162290A CN 102705807 B CN102705807 B CN 102705807B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000010438 heat treatment Methods 0.000 title abstract description 7
- 239000010865 sewage Substances 0.000 claims abstract description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000008399 tap water Substances 0.000 abstract 4
- 235000020679 tap water Nutrition 0.000 abstract 4
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a steam water heating unit based on a PID (proportional-integral-derivative) controller, which comprises a solar water supply system, a constant temperature water tank and the PID controller. A steam coil is arranged in the constant temperature water tank; a solar water inlet, a tap water inlet, a steam inlet, a drainage opening, a constant temperature water outlet and a sewage draining outlet are formed on the constant temperature water tank; an electric control valve II and an electric control valve I are respectively installed at the tap water inlet and the steam inlet; output signals are transmitted to the PID controller in time through on-line detection of a temperature sensor at the constant temperature water outlet; and the PID controller simultaneously judges whether the tap water is required to be compensated and whether steam is required to be compensated and heated, and automatically adjusts the opening of the electric control valves I and II, so as to adjust the compensation amount of the tap water and the feeding amount of steam, thus achieving the purpose of supplying water at the constant temperature. The steam water heating unit integrates two states that temperature is required to be reduced when the solar water outlet temperature is high and heating is required when the water supply temperature is insufficient, and realizes simultaneous control.
Description
Technical field
The present invention relates generally to solar water supply field, relates in particular to a kind of steam and hot water unit based on PID controller.
Background technology
Solar energy system is in Various Seasonal, different weather situation, due to reasons such as temperature, light application times, hot water temperature differs greatly, in summer, because temperature is high, light application time is long, solar energy water can reach fluidized state, and under overcast and rainy snow and cold snap, the effect of solar energy obviously weakens, and even needs to take outside antifreeze heating measure.Therefore, solar water is difficult to accomplish constant temperature heat supply.
Summary of the invention
The object of the invention is exactly in order to make up the defect of prior art, provide a kind of solar engineering water (or other heat source water) is carried out to the automatic constant temperature device that meticulous temperature control regulates continuously, solve the steam and hot water unit based on PID controller of solar heat water termostat heat supply.
The present invention is achieved by the following technical solutions:
Steam and hot water unit based on PID controller, include solar water supply system, it is characterized in that: also include constant temperature water tank, PID controller, in constant temperature water tank, be provided with steam pipe coil, upper and lower part on the sidewall of constant temperature water tank has respectively a through hole as steam inlet, drain port, stretch outside constant temperature water tank through steam inlet, drain port respectively at the head and the tail two ends of steam pipe coil, the head end of steam pipe coil is provided with an electric control valve one, and the tail end of steam pipe coil is provided with a loose float trap, the two ends, left and right at the top of constant temperature water tank have a through hole as solar energy water import, thermostatted water outlet, solar energy water import, thermostatted water outlet is circumscribed with respectively solar energy water water inlet pipe, thermostatted water outlet pipe, thermostatted water exit is provided with a temperature sensor, on the sidewall of solar energy water water inlet pipe, have an aperture as running water inlet, water supply pipe inserts in solar energy water water inlet pipe by running water inlet, and extend one section of water supply pipe and make it in the same way concentric with solar energy water inlet pipe, the reducing of water supply pipe end adds a nozzle, the head end of water supply pipe is provided with electric control valve two, the signal input part of the signal output part access PID controller of described temperature sensor, the control signal output access electric control valve one of PID controller, the control end of electric control valve two.
The bottom of described constant temperature water tank is provided with a sewage draining exit.
Described steam pipe coil adopts spiral coil or serpentine coil.
Described constant temperature water tank adopts stainless steel.
Principle of the present invention is:
The present invention is with solving the heat supply of solar water constant temperature, and the external heat source of employing is steam, and the introducing of running water is in order to reduce the problem of sun in summer energy water overtemperature.At running water inlet and steam inlet, electric control valve two, electric control valve one have been installed respectively, by device hot water outlet HIGH SENSITIVITY AND HIGH PRECISION temperature sensor, detect online, in time output signal is transferred to PID controller, PID controller controls whether running water needs to fill into and whether steam needs compensation heating simultaneously, and according to temperature signal, automatically adjust the open degree of electric control valve one, two, to regulate the amount of filling into or the steam amount of feeding of running water, reach the object of constant-temperature effluent.
In the reducing of running water end, install nozzle additional, the running water filling into fully mixes with solar energy water by ejector action, a segment pipe is extended in ejecting port outlet makes solar water further mix with running water, in access to plant, further mix again, to guarantee that leaving water temperature obtains stable control.
Steam Heating is carried out in device, takes spiral coil or serpentine coil indirect method, and steam passes through steam pipe coil in device from top to bottom, at steam pipe coil end, loose float trap has been installed, and steam condensate (SC) is dredged out.Due to steam top-down flowing in coil pipe, under Steam Actuation and self gravitation effect, condensate water is passed rapidly to loose float trap and is discharged, and in coil pipe, can not save bit by bit condensate water, has guaranteed that the effective heat-transfer surface of coil pipe is stabilized on design objective can not reduce.
Advantage of the present invention is:
1) the present invention need to heat two states by higher desuperheat and the supply water temperature deficiency of needing of solar energy leaving water temperature, unites two into one, and realizes simultaneously and controlling;
2) use of loose float trap, can timely and effective steam condensate (SC) be discharged, can also meet the reliably working under two kinds of unfavorable conditions of work of minute-pressure steam and preventing trace amount of steam, therefore, the present invention still can reliability service under the extreme case of steam pressure 0.01MPa.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention.
Fig. 2 is the schematic diagram of control system of the present invention.
The specific embodiment
As shown in Figure 1, 2, steam and hot water unit based on PID controller, include solar water supply system, it is characterized in that: also include constant temperature water tank 1, PID controller 2, in constant temperature water tank 1, be provided with steam pipe coil 3, upper and lower part on the sidewall of constant temperature water tank 1 has respectively a through hole as steam inlet 4, drain port 5, stretch outside constant temperature water tank through steam inlet 4, drain port 5 respectively at the head and the tail two ends of steam pipe coil 3, the head end of steam pipe coil 3 is provided with an electric control valve 1, and the tail end of steam pipe coil 3 is provided with a loose float trap 7, the two ends, left and right at the top of constant temperature water tank 1 have a through hole as solar energy water import 8, thermostatted water outlet 9, solar energy water import 8, thermostatted water outlet 9 is circumscribed with respectively solar energy water water inlet pipe 10, thermostatted water outlet pipe 11, thermostatted water exports 9 places and is provided with a temperature sensor 12, on the sidewall of solar energy water water inlet pipe 10, have an aperture as running water inlet 13, water supply pipe inserts in solar energy water water inlet pipe 10 by running water inlet 13, and extend one section of water supply pipe and make it in the same way concentric with solar energy water inlet pipe 10, the reducing of water supply pipe end adds a nozzle 14, the head end of water supply pipe is provided with electric control valve 2 15, the signal input part of the signal output part access PID controller 2 of temperature sensor 12, the control signal output access electric control valve 1 of PID controller 2, the control end of electric control valve 2 15.
The bottom of constant temperature water tank 1 is provided with a sewage draining exit 16.
Steam pipe coil 3 adopts spiral coil or serpentine coil.
Constant temperature water tank 1 adopts stainless steel.
Claims (1)
1. the steam and hot water unit based on PID controller, include solar water supply system, it is characterized in that: also include constant temperature water tank, PID controller, in constant temperature water tank, be provided with steam pipe coil, upper and lower part on the sidewall of constant temperature water tank has respectively a through hole as steam inlet, drain port, stretch outside constant temperature water tank through steam inlet, drain port respectively at the head and the tail two ends of steam pipe coil, the head end of steam pipe coil is provided with an electric control valve one, and the tail end of steam pipe coil is provided with a loose float trap, the two ends, left and right at the top of constant temperature water tank have a through hole as solar energy water import, thermostatted water outlet, solar energy water import, thermostatted water outlet is circumscribed with respectively solar energy water water inlet pipe, thermostatted water outlet pipe, thermostatted water exit is provided with a temperature sensor, on the sidewall of solar energy water water inlet pipe, have an aperture as running water inlet, water supply pipe inserts in solar energy water water inlet pipe by running water inlet, and extend one section of water supply pipe and make it in the same way concentric with solar energy water inlet pipe, the reducing of water supply pipe end adds a nozzle, the head end of water supply pipe is provided with electric control valve two, the signal input part of the signal output part access PID controller of described temperature sensor, the control signal output access electric control valve one of PID controller, the control end of electric control valve two, the bottom of described constant temperature water tank is provided with a sewage draining exit, described steam pipe coil adopts spiral coil or serpentine coil, described constant temperature water tank adopts stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162290.0A CN102705807B (en) | 2012-05-23 | 2012-05-23 | Steam water heating unit based on PID (proportional-integral-derivative) controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162290.0A CN102705807B (en) | 2012-05-23 | 2012-05-23 | Steam water heating unit based on PID (proportional-integral-derivative) controller |
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| Publication Number | Publication Date |
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| CN102705807A CN102705807A (en) | 2012-10-03 |
| CN102705807B true CN102705807B (en) | 2014-11-19 |
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| CN201210162290.0A Active CN102705807B (en) | 2012-05-23 | 2012-05-23 | Steam water heating unit based on PID (proportional-integral-derivative) controller |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288680A (en) * | 2016-07-28 | 2017-01-04 | 福州大世界橄榄有限公司 | A kind of drying unit |
| CN109974518A (en) * | 2017-12-28 | 2019-07-05 | 红塔烟草(集团)有限责任公司 | A kind of high system automatic control device of heat |
| CN110486956A (en) * | 2018-02-05 | 2019-11-22 | 浦江县泰如食品科技有限公司 | Solar energy automatic thermostatic device for removing fishy of soybean |
| CN109107215A (en) * | 2018-10-12 | 2019-01-01 | 盐城项果科技有限公司 | Calcium acetate magnesium salt preparing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126542A (en) * | 1983-12-09 | 1985-07-06 | Sanyo Kiko Kk | Water heater making use of solar system |
| US4898152A (en) * | 1984-12-18 | 1990-02-06 | Kahl Karl H | Dual sequence solar water heater |
| CN1594990A (en) * | 2003-05-30 | 2005-03-16 | 全奭宁 | Boiler system for heating and hot water supply using solar heat |
| CN101165432A (en) * | 2006-10-17 | 2008-04-23 | 珠海慧生能源技术发展有限公司 | Intelligentized light energy heat pump type cold-hot water energy-saving machine set and control method |
| CN201289231Y (en) * | 2008-08-05 | 2009-08-12 | 林景山 | Solar water heater capable of supplying heat water in constant temperature |
| CN201574790U (en) * | 2009-10-26 | 2010-09-08 | 刘平 | Cascade recycling device of residual heat in electric power plant |
| CN202149534U (en) * | 2011-06-09 | 2012-02-22 | 赵华 | Solar energy and air source heat pump combined hot water supply device |
-
2012
- 2012-05-23 CN CN201210162290.0A patent/CN102705807B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126542A (en) * | 1983-12-09 | 1985-07-06 | Sanyo Kiko Kk | Water heater making use of solar system |
| US4898152A (en) * | 1984-12-18 | 1990-02-06 | Kahl Karl H | Dual sequence solar water heater |
| CN1594990A (en) * | 2003-05-30 | 2005-03-16 | 全奭宁 | Boiler system for heating and hot water supply using solar heat |
| CN101165432A (en) * | 2006-10-17 | 2008-04-23 | 珠海慧生能源技术发展有限公司 | Intelligentized light energy heat pump type cold-hot water energy-saving machine set and control method |
| CN201289231Y (en) * | 2008-08-05 | 2009-08-12 | 林景山 | Solar water heater capable of supplying heat water in constant temperature |
| CN201574790U (en) * | 2009-10-26 | 2010-09-08 | 刘平 | Cascade recycling device of residual heat in electric power plant |
| CN202149534U (en) * | 2011-06-09 | 2012-02-22 | 赵华 | Solar energy and air source heat pump combined hot water supply device |
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| CN102705807A (en) | 2012-10-03 |
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Address after: 231200 Cao Gang Road, Changan industrial agglomeration, Feixi County, Hefei, Anhui Applicant after: Shunchang, Hefei distributed energy comprehensive application technology Co., Ltd Address before: 231200 Cao Gang Road, Changan industrial agglomeration, Feixi County, Hefei, Anhui Applicant before: Hefei Shunchang Stainless Steel Equipment Manufacturing Co., Ltd. |
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Denomination of invention: Steam water heating unit based on PID (proportional-integral-derivative) controller Effective date of registration: 20170323 Granted publication date: 20141119 Pledgee: Huizhou Merchants Bank Hefei three Xiao Kou branch Pledgor: Shunchang, Hefei distributed energy comprehensive application technology Co., Ltd Registration number: 2017340000040 |
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Date of cancellation: 20180504 Granted publication date: 20141119 Pledgee: Huizhou Merchants Bank Hefei three Xiao Kou branch Pledgor: Shunchang, Hefei distributed energy comprehensive application technology Co., Ltd Registration number: 2017340000040 |