CN209214399U - Feed forward type hydrophobic side regulation heat exchange control system - Google Patents
Feed forward type hydrophobic side regulation heat exchange control system Download PDFInfo
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- CN209214399U CN209214399U CN201821119926.2U CN201821119926U CN209214399U CN 209214399 U CN209214399 U CN 209214399U CN 201821119926 U CN201821119926 U CN 201821119926U CN 209214399 U CN209214399 U CN 209214399U
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Abstract
The utility model provides a kind of feed forward type hydrophobic side regulation heat exchange control system, including controller, steam inlet switch valve, condensed water index combustion fan, condensed water liquidometer, heated medium outlet temperature sensor, heated medium inlet temperature sensor and controller；The input terminal of controller is connect with condensed water liquidometer, heated medium outlet temperature sensor and heated medium inlet temperature sensor respectively；The output end of controller is connect with condensed water index combustion fan (8).Advantage are as follows: (1) utilization rate of the pressure energy of steam and thermal energy is high, avoids the wasting of resources；(2) defluidization, decompression and water attack problem will not occur in underload for vapour side, and safety is good；(3) when doing system, cancel steam control valve, drain valve and condensate recovering equipment, (4) control precision height, and heated medium outlet temperature deviation is small；(5) have the advantages that structure is simple, at low cost, to be less prone to failure, long service life, security performance high.
Description
Technical field
The utility model relates to a kind of heat exchangers, and in particular to a kind of feed forward type hydrophobic side regulation heat exchange control system.
Background technique
Vapor heat exchanger is using widely, and the structure of traditional vapor heat exchanger is as shown in Figure 1, include heat exchanger master
Body, heat exchanger main body are communicated with steam inlet duct 1, condensation water exit conduit 2, heated medium inlet duct 3 and are heated
Media outlet pipeline 4, high-temperature steam enter the side of heat exchanging chamber by steam inlet duct 1, and cold medium is by being heated Jie
Matter inlet duct enters the other side of heat exchanging chamber, and therefore, high-temperature steam and cold medium exchange heat, and high-temperature steam is due to heat release
Condensed water is formed, and passes through condensation water exit conduit discharge；And cold medium is changed into thermal medium because of heat absorption, and by being heated
The discharge of media outlet pipeline is achieved in the purpose using high-temperature steam heating cold medium, or realizes and condensed using cold medium
The purpose of steam.
For above-mentioned vapor heat exchanger, in use, it usually needs maintain in heated medium outlet conduit
Heat medium temperature is constant setting value, so needing that regulating system is arranged.Traditional regulating system are as follows: in steam inlet duct
1 is equipped with steam inlet regulating valve 5, condensation water out drain valve 6 is equipped in condensation water exit conduit 2, in heated medium
Outlet conduit is equipped with temperature sensor.Its Principles of Regulation are as follows: controller, which passes through temperature sensor in real time and collects, is heated Jie
Matter Outlet Temperature value, and it is compared with setting value, according to the aperture of bias adjustment steam inlet regulating valve, that is, adjust
It saves into quantity of steam, so that heated medium outlet temperature be made to maintain setting value；And condensing water out drain valve will then coagulate in real time
It bears water and dredges away.
Above-mentioned regulating system is primarily present following problems: (1) due to needing to constantly regulate opening for steam inlet regulating valve 5
Degree makes to condense the pressure that water pressure is lower than steam inlet duct, causes condensation water pressure low, condensing water temperature is high, condensed water band
Vapour rate is high, the pressure energy of condensed water and the low problem of the utilization rate of thermal energy；(2) when underrun, easily there is defluidization decompression water attack
Phenomenon influences operational safety；(3) control element is made of big steam inlet regulating valve and condensation water out drain valve, system
Complexity, high failure rate.
Utility model content
In view of the defects existing in the prior art, the utility model provides a kind of feed forward type hydrophobic side regulation heat exchange control system
System, can effectively solve the above problems.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of feed forward type hydrophobic side regulation heat exchange control system, including heat exchanger main body, heat exchanger
Main body is communicated with steam inlet duct (1), condensation water exit conduit (2), heated medium inlet duct (3) and heated medium
Outlet conduit (4)；Further include steam inlet switch valve (7), condensed water index combustion fan (8), condensed water liquidometer (9), added
Thermal medium outlet temperature sensor, heated medium inlet temperature sensor and controller；
Wherein, the steam inlet switch valve (7) is set on the steam inlet duct (1)；The condensation water out
Regulating valve (8) is set on the condensation water exit conduit (2)；The condensed water liquidometer (9) is for measuring inside heat exchanger
Condensed water level value；The heated medium outlet temperature sensor is set on the heated medium outlet conduit (4)；Institute
Heated medium inlet temperature sensor is stated to be set on the heated medium inlet duct (3)；
The input terminal of the controller is passed with the condensed water liquidometer (9), the heated medium outlet temperature respectively
Sensor is connected with the heated medium inlet temperature sensor；The output end of the controller and the condensed water outlet regulating
Valve (8) connection.
Preferably, the steam inlet switch valve (7) being set on the steam inlet duct (1) be hand-operated valve or from
Dynamic valve.
Preferably, the feed forward type hydrophobic side regulation heat exchange control system is plate heat exchanger, shell-and-tube heat exchanger or disk
Pipe heat exchanger.
Preferably, the controller is PLC, single-chip microcontroller or DCS PLC technology element or system.
Preferably, the controller is also connected with display and alarm.
Feed forward type hydrophobic side regulation heat exchange control system provided by the utility model has the advantage that
(1) utilization rate of the pressure energy of condensed water and thermal energy is high, and steam thermal energy utilization rate is high, avoids the wasting of resources；
(2) have the advantages that structure is simple, at low cost, to be less prone to failure, long service life, security performance high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of conventional vapor heat exchanger.
Fig. 2 is the structural schematic diagram of feed forward type hydrophobic side provided by the utility model regulation heat exchange control system.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
In conjunction with Fig. 2, the utility model provides a kind of feed forward type hydrophobic side regulation heat exchange control system, including heat exchanger master
Body, heat exchanger main body are communicated with steam inlet duct 1, condensation water exit conduit 2, heated medium inlet duct 3 and are heated
Media outlet pipeline 4；It further include controller, steam inlet switch valve 7, condensed water index combustion fan 8, condensed water liquidometer 9, quilt
Crude product input temperature sensor, heated medium inlet temperature sensor and controller；
Wherein, steam inlet switch valve 7 is set on steam inlet duct 1；Condensed water index combustion fan 8 is set to condensation
In water exit conduit 2；Condensed water liquidometer 9 is for measuring heat exchanger internal condensate aqueous place value；Heated medium outlet temperature
Sensor is set on heated medium outlet conduit 4；Heated medium inlet temperature sensor is set to heated medium and enters
On mouth pipeline 3；
The input terminal of controller respectively with condensed water liquidometer 9, heated medium outlet temperature sensor and be heated Jie
The connection of matter inlet temperature sensor；The output end of controller is connect with condensed water index combustion fan 8.
In practical application, PLC, single-chip microcontroller or DCS PLC technology element or system is can be used in controller.Feed forward type is hydrophobic
Side regulation heat exchange control system can be various forms, e.g., plate heat exchanger, shell-and-tube heat exchanger or coil exchanger etc..
Condensed water liquidometer 9, heated medium outlet temperature sensor, heated medium inlet temperature sensor both participate in outlet temperature
Control.
Controller Principles of Regulation are as follows: when heat exchanger work, open steam inlet switch valve 7, also, entire in heat exchanger
In the course of work, steam inlet switch valve is constantly in opening state, and its aperture is constant, therefore, steam inlet duct with change
Hot device internal pressure is essentially steady state value；Controller, which passes through heated medium outlet temperature sensor in real time and collects, is heated Jie
Matter Outlet Temperature value, and heated medium inlet temperature is collected by heated medium inlet temperature sensor in real time, and
Heat exchanger internal condensate aqueous place value is collected by condensed water liquidometer in real time, then according to rear feedback signal-heated medium
Outlet temperature and feed-forward signal-heated medium inlet temperature accurately calculate the liquid of heat exchanger hot side condensed water after operating condition variation
Position new settings value, then compares the deviation of liquid level new settings value and liquid level current value, adjusts condensation water out according to level imbalance
The aperture of regulating valve makes condensed water liquid level be rapidly reached new settings value, so that heat-exchange system is adapted to operating condition variation in real time, reaches steady
Determine the purpose of heated medium outlet temperature.Meanwhile according to the aperture of hot side condensed water Liquid level condensed water index combustion fan,
Guarantee operation liquid level minimum between highest level value.
It can be seen that the utility model is cancelled the steam inlet regulating valve of conventional vapor heat exchanger steam lead road, is dredged
Condensation water out drain valve in water lines need to only install condensed water index combustion fan additional on the hydrophobic pipeline of heat exchanger.
Easy to control in order to observe, controller is also connected with display, can the collected on-site parameters of real-time display controller.In addition,
Controller also can connect alarm and telecommunication circuit, it can be achieved that the function of remotely controlling.
The essence of the utility model is the water flow by adjusting condensed water, to change the liquid of condensed water in heat exchanger
Position, that is, the heat exchange area of steam is tied up using condensed water, achieve the purpose that change heat exchange amount.Before provided by the utility model
Feedback formula hydrophobic side regulation heat exchange control system has the advantage that
(1) the utility model is drain regulation technology, does not need to regulate and control steam side, therefore, the pressure of condensed water can
Up to the 90% of jet chimney pressure, the utilization rate of steam pressure energy is substantially increased, condensing water temperature and condensed water band is effectively reduced
Vapour rate improves the pressure energy of condensed water and the utilization rate of thermal energy, can also reduce condensate-water polishing energy consumption.
(2) using after the hydrophobic regulation technology of steam heat-exchanging, condensed water is forced to exchange heat, and the temperature of condensed water, which is always lower than, to be set
Definite value, simultaneously because condensed water liquid level exists, steam has sealing process in heat exchanging device, can prevent hydrophobic leakage vapour phenomenon, steam
Heat utilization rate greatly improves.
(3) using after the hydrophobic regulation technology of steam heat-exchanging, heat exchanger vapour lateral pressure is always maintained at and steam pipework pressure one
It causes, prevents defluidization decompression water attack problem when underload, security performance greatly improves.
(4) the hydrophobic regulation steam heat-exchanging system of three blunt quantity control technology is used, Liquid level avoids leaking in reasonable interval
Vapour and water attack, security performance greatly improve.
(5) the hydrophobic regulation steam heat-exchanging system for using three blunt quantity control technology, prevents lag when load reduction, reduces
The temperature fluctuation time realizes condensed water liquid level precise positioning, improves heated medium outlet temperature stability.
(6) control element be common regulating valve, have structure it is simple, it is at low cost, be less prone to failure, long service life
The advantages of.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the protection scope of the utility model.
Claims (5)
1. a kind of feed forward type hydrophobic side regulation heat exchange control system, including heat exchanger main body, heat exchanger main body are communicated with steam and enter
Mouth pipeline (1), condensation water exit conduit (2), heated medium inlet duct (3) and heated medium outlet conduit (4)；It is special
Sign is, further includes steam inlet switch valve (7), condensed water index combustion fan (8), condensed water liquidometer (9), heated medium
Outlet temperature sensor, heated medium inlet temperature sensor and controller；
Wherein, the steam inlet switch valve (7) is set on the steam inlet duct (1)；The condensed water outlet regulating
Valve (8) is set on the condensation water exit conduit (2)；The condensed water liquidometer (9) is for measuring heat exchanger internal condensate
Aqueous place value；The heated medium outlet temperature sensor is set on the heated medium outlet conduit (4)；The quilt
Heating medium inlet temperature sensor is set on the heated medium inlet duct (3)；
The input terminal of the controller respectively with the condensed water liquidometer (9), the heated medium outlet temperature sensor
It is connected with the heated medium inlet temperature sensor；The output end of the controller and the condensed water index combustion fan
(8) it connects.
2. feed forward type hydrophobic side regulation heat exchange control system according to claim 1, which is characterized in that be set to the steaming
The steam inlet switch valve (7) on vapour inlet duct (1) is hand-operated valve or automatic valve.
3. feed forward type hydrophobic side regulation heat exchange control system according to claim 1, which is characterized in that the feed forward type is dredged
Water side regulation heat exchange control system is plate heat exchanger, shell-and-tube heat exchanger or coil exchanger.
4. feed forward type hydrophobic side according to claim 1 regulation heat exchange control system, which is characterized in that the controller is
PLC, single-chip microcontroller or DCS PLC technology element.
5. feed forward type hydrophobic side regulation heat exchange control system according to claim 1, which is characterized in that the controller is also
It is connected with display and alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119926.2U CN209214399U (en) | 2018-07-16 | 2018-07-16 | Feed forward type hydrophobic side regulation heat exchange control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119926.2U CN209214399U (en) | 2018-07-16 | 2018-07-16 | Feed forward type hydrophobic side regulation heat exchange control system |
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| Publication Number | Publication Date |
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| CN209214399U true CN209214399U (en) | 2019-08-06 |
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| CN201821119926.2U Active CN209214399U (en) | 2018-07-16 | 2018-07-16 | Feed forward type hydrophobic side regulation heat exchange control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050248A (en) * | 2020-09-10 | 2020-12-08 | 上海康恒环境股份有限公司 | Steam air preheater for household garbage incineration |
| CN112144069A (en) * | 2020-09-25 | 2020-12-29 | 阳光电源股份有限公司 | Spray coating device and temperature adjusting method for spray coating device |
| CN112179160A (en) * | 2020-09-16 | 2021-01-05 | 安徽沛愉包装科技有限公司 | Control method of heat exchanger |
-
2018
- 2018-07-16 CN CN201821119926.2U patent/CN209214399U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050248A (en) * | 2020-09-10 | 2020-12-08 | 上海康恒环境股份有限公司 | Steam air preheater for household garbage incineration |
| CN112179160A (en) * | 2020-09-16 | 2021-01-05 | 安徽沛愉包装科技有限公司 | Control method of heat exchanger |
| CN112144069A (en) * | 2020-09-25 | 2020-12-29 | 阳光电源股份有限公司 | Spray coating device and temperature adjusting method for spray coating device |
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