CN106647854B - A kind of control method for increasing substantially heating kettle feed liquid heating accuracy - Google Patents
A kind of control method for increasing substantially heating kettle feed liquid heating accuracy Download PDFInfo
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- CN106647854B CN106647854B CN201610904197.0A CN201610904197A CN106647854B CN 106647854 B CN106647854 B CN 106647854B CN 201610904197 A CN201610904197 A CN 201610904197A CN 106647854 B CN106647854 B CN 106647854B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Commercial Cooking Devices (AREA)
Abstract
The invention discloses a kind of control methods for increasing substantially heating kettle feed liquid heating accuracy, comprise the following steps：A, when heating kettle detects that feed liquid is initially added into, delayed startup heats；B, the frequency of the output temperature and hot water circulating pump that adjust steam mixing apparatus carries out circulating-heating at a slow speed；C, the frequency of the output temperature and hot water circulating pump that adjust steam mixing apparatus carries out Rapid Circulation heating；D, according to the output temperature of the feed temperature adjustment steam mixing apparatus in heating kettle, the frequency for keeping hot water circulating pump is constant；E, the output temperature for adjusting steam mixing apparatus and the frequency for adjusting hot water circulating pump carry out circulated at low velocity heating；F, the frequency for the output temperature and hot water circulating pump for adjusting steam mixing apparatus cools down, and steam off valve.The present invention improves the feed liquid heating accuracy of heating kettle, fully ensures that by the quality of heating feed liquid, and the feed liquid caused by temperature control is bad is avoided to scrap.
Description
Technical field
The present invention relates to heating kettle low-temperature heat fields more particularly to one kind to increase substantially heating kettle feed liquid heating accuracy
Control method.
Background technology
It, can only be by heating steam since heat medium is high-temperature steam in traditional heating kettle heating process
Switching discharges to complete heating accuracy control.Since steam has, latent heat is big, fast cooling characteristic, be difficult improve plus
Hot precision.Existing low-temperature heat kettle system use steam mixing apparatus and hot water circulating pump, by set steam mixing apparatus and
The relevant parameter of hot water circulating pump realizes the circulating-heating to feed liquid in heating kettle, although disclosure satisfy that the material of general precision requirement
Liquid heats, but for the more demanding liquid of heating temperature, such as containing the higher spice feed liquid of fragrance component, temperature is excessively high to be caused
The volatilization of fragrance, temperature is too low and can influence the abundant dissolving of entire feed liquid, and existing heating means cannot meet its heating accuracy
It is required that.
The content of the invention
It is an object of the invention to provide a kind of control method for increasing substantially heating kettle feed liquid heating accuracy, Neng Goujing
The really temperature and circulation rate of control heat medium, ensures to be heated the quality of feed liquid, avoids expecting caused by temperature control is bad
Liquid is scrapped.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of control method for increasing substantially heating kettle feed liquid heating accuracy, comprises the following steps：
A, when heating kettle detects that feed liquid is initially added into, heating is started after the 10-20s that is delayed, subsequently into step B；
B, the output temperature of steam mixing apparatus is adjusted to 50-60 DEG C of progress low temperature slow heating, while hot water is followed
The frequency of ring pump, which is adjusted to 25-30Hz, carries out circulating-heating at a slow speed, subsequently into step C；
C, as the feed liquid capacity V ＞ 100L in heating kettle, adjustment steam mixing apparatus output temperature for 80-90 DEG C into
Row fast heating at high temperature, while adjust the frequency of hot water circulating pump and carry out Rapid Circulation heating for 50Hz, subsequently into step D；
D, as the feed temperature T ＞ T in heating kettle0At -5 DEG C, the output temperature of steam mixing apparatus is adjusted to T0- 2 DEG C,
Keep the frequency of hot water circulating pump constant simultaneously, wherein T0For the feed liquid technological temperature that the control platform of heating system issues, so
After enter step E；
E, when the feed temperature T in heating kettle reaches T0- 2 DEG C of ＜ T≤T0At+1.5 DEG C, the defeated of steam mixing apparatus is adjusted
Go out temperature to T0Heat preservation is carried out, while adjusts the frequency of hot water circulating pump and carries out circulated at low velocity heating to 25-30Hz, then
Enter step F；
F, as the feed temperature T in heating kettle>T0At+1.5 DEG C, the output temperature of steam mixing apparatus is adjusted to T0- 5 DEG C,
The frequency of hot water circulating pump is adjusted simultaneously as 25-30Hz, and steam off valve.
The present invention is by detection by the temperature and capacity of heating feed liquid, temperature and the cycle speed of real-time control heat medium
Degree, substantially increases feed liquid heating accuracy；The present invention is realized and added also by controlling the temperature and circulation rate of heat medium
The heat preservation of hot material liquid and cooling operation, further improve feed liquid quality, reduce the discarded amount of feed liquid.
Description of the drawings
Fig. 1 is the flow diagram of the present invention.
Specific embodiment
As shown in Figure 1, the control method of the present invention for increasing substantially heating kettle feed liquid heating accuracy, including following
Step：
A, when heating kettle detects that feed liquid is initially added into, regulation and control heating kettle system enters heating mode after the 10-20s that is delayed.
B, the output temperature of steam mixing apparatus is adjusted to 50-60 DEG C, low temperature slow heating feed liquid, while hot water is followed
The frequency of ring pump is adjusted to 25-30Hz, at a slow speed circulating-heating medium, and then realize the low temperature slow heat to feed liquid.
C, when volume measurement equipment detects the feed liquid capacity V ＞ 100L in heating kettle, adjustment steam mixing apparatus
Output temperature is 80-90 DEG C, fast heating at high temperature feed liquid, while adjusts the frequency of hot water circulating pump as 50Hz, and Rapid Circulation adds
Thermal medium, and then realize the fast heating at high temperature to feed liquid.It should be noted that in the step steam mixing apparatus output temperature
Degree should according to seasonal adjustment, such as in winter when be adjusted to 90 DEG C, 80 DEG C are adjusted in summer, so as to accurately control heating essence
Degree.
D, as the feed temperature T ＞ T in heating kettle0At -5 DEG C, the output temperature of steam mixing apparatus is adjusted to T0- 2 DEG C,
Simultaneously the control platform that the frequency of hot water circulating pump is constant, and making the feed temperature heated gradually tends to heating system is kept to issue
Feed liquid technological temperature T0。
E, when the feed temperature T in heating kettle reaches T0- 2 DEG C of ＜ T≤T0At+1.5 DEG C, regulation and control heating kettle system enters guarantor
Warm pattern：The output temperature of steam mixing apparatus is adjusted to T0, while the frequency for adjusting hot water circulating pump is low to 25-30Hz progress
Fast circulating-heating, and then realize the Heat preservation to feed liquid.
F, as the feed temperature T in heating kettle>T0At+1.5 DEG C, regulation and control heating kettle system enters cooling mode：Adjust water
The output temperature of vapour mixing apparatus is to T0- 5 DEG C, the frequency of hot water circulating pump is adjusted as 25-30Hz, simultaneously closes off steam valve,
Heat source is cut off, heating process is completed.If feed temperature T is down to T0- 2 DEG C, then return to step E is needed to be kept the temperature.
The present invention controls the temperature of heat medium and circulation rate by detecting by the temperature of heating feed liquid and volume, will
Heating kettle original heating accuracy ± 5 DEG C have been increased to ± 2 DEG C, have achieved the purpose that accurate control feed liquid heating accuracy；The present invention is not
Feed liquid can only be heated, moreover it is possible to realize by the heat preservation of heating feed liquid and drop by the temperature and circulation rate that control heat medium
Temperature effectively increases feed liquid quality.
Claims (1)
1. a kind of control method for improving heating kettle feed liquid heating accuracy, which is characterized in that comprise the following steps：
A, when heating kettle detects that feed liquid is initially added into, heating is started after the 10-20s that is delayed, subsequently into step B；
B, the output temperature of steam mixing apparatus is adjusted to 50-60 DEG C of progress low temperature slow heating, while by hot water circulating pump
Frequency adjust to 25-30Hz and carry out circulating-heating at a slow speed, subsequently into step C；
C, as the feed liquid capacity V ＞ 100L in heating kettle, the output temperature of adjustment steam mixing apparatus carries out height for 80-90 DEG C
Warm quick heating, while adjust the frequency of hot water circulating pump and carry out Rapid Circulation heating for 50Hz, subsequently into step D；
D, as the feed temperature T ＞ T in heating kettle0At -5 DEG C, the output temperature of steam mixing apparatus is adjusted to T0- 2 DEG C, simultaneously
The frequency for keeping hot water circulating pump is constant, wherein T0For the feed liquid technological temperature that the control platform of heating system issues, Ran Houjin
Enter step E；
E, when the feed temperature T in heating kettle reaches T0- 2 DEG C of ＜ T≤T0At+1.5 DEG C, the output temperature of steam mixing apparatus is adjusted
It spends to T0Heat preservation is carried out, while adjusts the frequency of hot water circulating pump and carries out circulated at low velocity heating to 25-30Hz, subsequently into
Step F；
F, as the feed temperature T in heating kettle>T0At+1.5 DEG C, the output temperature of steam mixing apparatus is adjusted to T0- 5 DEG C, simultaneously
The frequency of hot water circulating pump is adjusted as 25-30Hz, and steam off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904197.0A CN106647854B (en) | 2016-10-18 | 2016-10-18 | A kind of control method for increasing substantially heating kettle feed liquid heating accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904197.0A CN106647854B (en) | 2016-10-18 | 2016-10-18 | A kind of control method for increasing substantially heating kettle feed liquid heating accuracy |
Publications (2)
| Publication Number | Publication Date |
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| CN106647854A CN106647854A (en) | 2017-05-10 |
| CN106647854B true CN106647854B (en) | 2018-05-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08299180A (en) * | 1995-05-11 | 1996-11-19 | Matsushita Electric Ind Co Ltd | Electric water heater |
| CN101866190A (en) * | 2010-07-02 | 2010-10-20 | 西安电炉研究所有限公司 | Temperature cascade PID (Proportion Integration Differentiation) control system of high-temperature high-pressure testing device and control method thereof |
| CN203397233U (en) * | 2013-06-27 | 2014-01-15 | 西安电炉研究所有限公司 | Temperature tracking protection control system of hot wind heating test device |
| CN204768606U (en) * | 2015-06-05 | 2015-11-18 | 河南中烟工业有限责任公司 | Low temperature heating cauldron system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120037095A1 (en) * | 2010-08-10 | 2012-02-16 | General Electric Company | Hot water mixing valve with failure detection |
-
2016
- 2016-10-18 CN CN201610904197.0A patent/CN106647854B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08299180A (en) * | 1995-05-11 | 1996-11-19 | Matsushita Electric Ind Co Ltd | Electric water heater |
| CN101866190A (en) * | 2010-07-02 | 2010-10-20 | 西安电炉研究所有限公司 | Temperature cascade PID (Proportion Integration Differentiation) control system of high-temperature high-pressure testing device and control method thereof |
| CN203397233U (en) * | 2013-06-27 | 2014-01-15 | 西安电炉研究所有限公司 | Temperature tracking protection control system of hot wind heating test device |
| CN204768606U (en) * | 2015-06-05 | 2015-11-18 | 河南中烟工业有限责任公司 | Low temperature heating cauldron system |
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| Publication number | Publication date |
|---|---|
| CN106647854A (en) | 2017-05-10 |
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