CN108332596A - The double PID control device and methods of waste water residual heat recycling - Google Patents
The double PID control device and methods of waste water residual heat recycling Download PDFInfo
- Publication number
- CN108332596A CN108332596A CN201810307446.7A CN201810307446A CN108332596A CN 108332596 A CN108332596 A CN 108332596A CN 201810307446 A CN201810307446 A CN 201810307446A CN 108332596 A CN108332596 A CN 108332596A
- Authority
- CN
- China
- Prior art keywords
- sewage
- temperature
- new
- water
- new water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 36
- 238000004064 recycling Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 164
- 239000010865 sewage Substances 0.000 claims abstract description 133
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 238000000605 extraction Methods 0.000 claims abstract description 24
- 230000008676 import Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Flow Control (AREA)
Abstract
The present invention provides a kind of double PID control device and methods of waste water residual heat recycling, which solve PID controls in existing waste water residual heat removal process to adjust temperature, the water yield of typically fixed sewage, sewage leaving water temperature is unable to control, and sewage temperature and new coolant-temperature gage interact, the new leaving water temperature of water and the leaving water temperature of sewage, also influenced each other by respective inflow temperature, it is required that reach respectively set leaving water temperature production water and in equilibrium state it is extremely difficult, and when extracting heat from sewage to the heating of new water, the reacting condition of temperature lags, if respectively constantly being monitored adjustment according to conventional PID modes, cause the technical problem that temperature fluctuation is larger.It is equipped with wastewater inlet, new water inlet, heat extraction replacement part, outlet of sewer and new water out, and sewage outlet pipeline is equipped with sewage flow transducer, sewage temperature transmitter and discharge of sewage regulating valve.It the composite can be widely applied to during the adjusting control of waste water residual heat recycling.
Description
Technical field
The present invention relates to a kind of waste water residual heat recovery control devices, and double PID controls are recycled more particularly to a kind of waste water residual heat
Device and method processed.
Background technology
In waste water residual heat recycling field, since the water and leaving water temperature of new water and the water and leaving water temperature of sewage are mutual
It influences, is run according to the leaving water temperature respectively set, it is extremely difficult to reach balance, currently, being controlled in the market using more PID
System adjusts temperature, and the water yield of typically fixed sewage, sewage leaving water temperature is unable to control, and sewage temperature and new coolant-temperature gage
It interacts, the leaving water temperature of new water and the leaving water temperature of sewage are also influenced each other by respective inflow temperature, it is desirable that reach
It is to the leaving water temperature production water respectively set and extremely difficult in equilibrium state, and extract heat from sewage and heated to new water
When, the reacting condition lag of temperature causes temperature fluctuation if respectively constantly being monitored adjustment according to conventional PID modes
It is larger.
Invention content
The present invention is directed to PID control in existing waste water residual heat removal process and adjusts temperature, typically fixes going out for sewage
Water, sewage leaving water temperature is unable to control, and sewage temperature and new coolant-temperature gage interact, the leaving water temperature of new water and dirt
The leaving water temperature of water is also influenced each other by respective inflow temperature, it is desirable that is reached the leaving water temperature production water respectively set and is in
Equilibrium state is extremely difficult, and from sewage extract heat to new water heat when, temperature reacting condition lag, if respectively
Adjustment is constantly monitored according to conventional PID modes, causes the technical problem that temperature fluctuation is larger, providing one kind can be real-time
New coolant-temperature gage, sewage temperature, new water water yield and sewage water yield are monitored, and can be according between real time temperature and set temperature
The temperature difference different adjustment modes are used to valve, to valve adjustment in time, it is accurate, avoid larger temperature fluctuation, realize new
The balance of water leaving water temperature and sewage leaving water temperature improves the double PID control dresses of waste water residual heat recycling of sewerage heat energy organic efficiency
It sets and method.
For this purpose, the technical scheme is that, a kind of double PID control devices of waste water residual heat recycling, including it is wastewater inlet, new
Water inlet, heat extraction replacement part, outlet of sewer and new water out, wastewater inlet and heat extraction replacement part pass through sewage
Inlet pipeline connects, and new water inlet is connected with heat extraction replacement part by new water inlet pipeline, heat extraction replacement part
It is connected by sewage outlet pipeline with outlet of sewer, heat extraction replacement part and new water out are connected by new water outlet pipeline
It connects, sewage outlet pipeline is equipped with sewage flow transducer, sewage temperature transmitter, discharge of sewage regulating valve, new water outlet pipe
Road is equipped with new flow transmitter, new coolant-temperature gage transmitter, new Water flow adjusting valve, sewage flow transducer and programmable control
Device electrical connection processed, new flow transmitter are electrically connected with programmable controller, sewage temperature transmitter and programmable controller electricity
Connection, new coolant-temperature gage transmitter are electrically connected with programmable controller, and discharge of sewage regulating valve is electrically connected with programmable controller, newly
Water flow adjusting valve is electrically connected with programmable controller.
Preferably, discharge of sewage regulating valve is electric control valve, and new Water flow adjusting valve is electric control valve.
A method of double PID control devices being recycled using waste water residual heat, specifically include following steps：
(1) by programmable controller set sewage leaving water temperature T1 and new water leaving water temperature T2, open wastewater inlet and
After new water inlet, sewage and new water carry out heat exchange in heat extraction replacement part, sewage outlet pipeline and new is separately flowed into
Water outlet pipeline；
(2) sewage flow transducer and new flow transmitter are monitored respectively in sewage outlet pipeline and new water outlet pipeline
Real-time traffic, transfer data in programmable controller；
Sewage temperature transmitter monitors the real time temperature t1 of sewage in sewage outlet pipeline in real time, and new coolant-temperature gage transmitter is real
When monitor the real time temperature t2 of new water in new water outlet pipeline, transfer data in programmable controller；
(3) specified maximum temperature difference value is set as △ T1 by programmable controller, sets specified minimum temperature difference value as △ T2,
Programmable controller is compared the sewage temperature t1 received with sewage set temperature T1, obtains the practical temperature difference of sewage |
T1-t1 |, programmable controller is compared the new coolant-temperature gage t2 received with new water set temperature T2, show that new water is practical
Temperature difference | T2-t2 |；
(4) the practical temperature difference of sewage is compared with △ T1, △ T2, by the practical temperature difference of new water and △ T1, △ T2 into
Row compares, and programmable controller is adjusted regulating valve according to comparison result, specifically includes quickly adjustment, at a slow speed adjustment and not
Adjust Three models：
When | T1-t1 |>When △ T1, adjustment discharge of sewage regulating valve enters quick adjustment modes, when | T2-t2 |>When △ T1,
It adjusts new Water flow adjusting valve and enters quick adjustment modes；
As △ T2<|T1-t1|<When △ T1, adjustment discharge of sewage regulating valve enters adjustment modes at a slow speed, as △ T2<|T2-
t2|<When △ T1, adjusts new Water flow adjusting valve and enter adjustment modes at a slow speed；
When | T1-t1 |<When △ T2, discharge of sewage regulating valve does not adjust, when | T2-t2 |<When △ T2, new Water flow adjusting valve
It does not adjust.
Preferably, quick adjustment modes control electric control valve by programmable controller and realize that interval waiting is adjusted at a quick pace
Whole, adjustment modes control electric control valve by programmable controller and realize that slowly interval etc. is to be adjusted at a slow speed.
Present invention has the advantages that due to being equipped with wastewater inlet, new water inlet, heat extraction replacement part, outlet of sewer
With new water out, wastewater inlet is connected with heat extraction replacement part by wastewater influent pipeline, new water inlet and heat extraction
Replacement part is connected by new water inlet pipeline, and heat extraction replacement part is connected with outlet of sewer by sewage outlet pipeline,
Heat extraction replacement part is connected with new water out by new water outlet pipeline, and sewage outlet pipeline is equipped with discharge of sewage pick-up
Device, sewage temperature transmitter, discharge of sewage regulating valve, new water outlet pipeline is equipped with new flow transmitter, new coolant-temperature gage becomes
Send device, new Water flow adjusting valve, sewage flow transducer to be electrically connected with programmable controller, new flow transmitter with it is programmable
Controller is electrically connected, and sewage temperature transmitter is electrically connected with programmable controller, new coolant-temperature gage transmitter and programmable controller
Electrical connection, discharge of sewage regulating valve are electrically connected with programmable controller, and new Water flow adjusting valve is electrically connected with programmable controller,
When to waste water residual heat recycling with new water carry out heat exchange when, can monitor in real time new coolant-temperature gage, sewage temperature, new water water yield and
Sewage water yield, and different adjustment modes can be used to valve according to the temperature difference between real time temperature and set temperature, it is right
Valve adjustment in time, it is accurate, avoid larger temperature fluctuation, realize the flat of new water leaving water temperature and sewage leaving water temperature
Weighing apparatus, improves sewerage heat energy organic efficiency.
Description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention；
Fig. 2 is the flow diagram of the embodiment of the present invention.
Symbol description in figure：
1. wastewater inlet；2. wastewater influent pipeline；3. heat extraction replacement part；4. sewage flow transducer；5. sewage
Temperature transmitter；6. sewage outlet pipeline；7. discharge of sewage regulating valve；8. outlet of sewer；9. new water inlet；10. new water water inlet
Pipeline；11. new flow transmitter；12. new coolant-temperature gage transmitter；13. new water outlet pipeline；14. new Water flow adjusting valve；
15. new water out；16. programmable controller.
Specific implementation mode
The present invention is described further with reference to embodiment.
As shown in Figure 1, a kind of double PID control devices of waste water residual heat recycling, including wastewater inlet 1, new water inlet 9, heat
Replacement part 3, outlet of sewer 8 and new water out 15 are extracted, wastewater inlet 1 and heat extraction replacement part 3 pass through wastewater influent
Pipeline 2 connects, and new water inlet 9 and heat extraction replacement part 3 are connected by new water inlet pipeline 10, heat extraction replacement part
3 and outlet of sewer 8 by sewage outlet pipeline 6 connect, heat extraction replacement part 3 and new water out 15 pass through new water outlet pipe
Road 13 connects, and sewage outlet pipeline 6 is equipped with sewage flow transducer 4, sewage temperature transmitter 5, discharge of sewage regulating valve 7,
New water outlet pipeline 13 is equipped with new flow transmitter 11, new coolant-temperature gage transmitter 12, new Water flow adjusting valve 14, sewage stream
Transmitter 4 is electrically connected with programmable controller 16, and new flow transmitter 11 is electrically connected with programmable controller 16, sewage temperature
Degree transmitter 5 is electrically connected with programmable controller 16, and new coolant-temperature gage transmitter 12 is electrically connected with programmable controller 16, sewage stream
Adjustable valve 7 is electrically connected with programmable controller 16, and new Water flow adjusting valve 14 is electrically connected with programmable controller 16, sewage stream
Adjustable valve 7 is electric control valve, and new Water flow adjusting valve 14 is electric control valve.
As shown in Fig. 2, a kind of method recycling double PID control devices using waste water residual heat, specifically includes following steps：
(1) sewage leaving water temperature T1 and new water leaving water temperature T2 is set by programmable controller 16, opens wastewater inlet 1
With new water inlet 9, after sewage and new water carry out heat exchange in heat extraction replacement part 3, sewage outlet pipeline 6 is separately flowed into
With new water outlet pipeline 13；
(2) sewage flow transducer 4 and new flow transmitter 11 monitor sewage outlet pipeline 6 and new water outlet pipe respectively
Real-time traffic in road 13 transfers data in programmable controller 16；
Sewage temperature transmitter 5 monitors the real time temperature t1 of sewage in sewage outlet pipeline 6, new coolant-temperature gage transmitter in real time
12 monitor the real time temperature t2 of new water in new water outlet pipeline 13 in real time, transfer data in programmable controller 16；
(3) specified maximum temperature difference value is set as △ T1 by programmable controller 16, sets specified minimum temperature difference value as △
T2, programmable controller 16 are compared the sewage temperature t1 received with sewage set temperature T1, obtain the practical temperature of sewage
Difference | T1-t1 |, programmable controller 16 is compared the new coolant-temperature gage t2 received with new water set temperature T2, obtains new
The practical temperature difference of water | T2-t2 |；
(4) the practical temperature difference of sewage is compared with △ T1, △ T2, by the practical temperature difference of new water and △ T1, △ T2 into
Row compares, and programmable controller 16 is adjusted regulating valve according to comparison result, specifically include quickly adjustment, at a slow speed adjustment and
Do not adjust Three models：
When | T1-t1 |>When △ T1, adjustment discharge of sewage regulating valve 7 enters quick adjustment modes, when | T2-t2 |>△T1
When, it adjusts new Water flow adjusting valve 14 and enters quick adjustment modes；
As △ T2<|T1-t1|<When △ T1, adjustment discharge of sewage regulating valve 7 enters adjustment modes at a slow speed, as △ T2<|T2-
t2|<When △ T1, adjusts new Water flow adjusting valve 14 and enter adjustment modes at a slow speed；
When | T1-t1 |<When △ T2, discharge of sewage regulating valve 7 does not adjust, when | T2-t2 |<When △ T2, new water flow is adjusted
Valve 14 does not adjust.
Quick adjustment modes control electric control valve by programmable controller 16 and realize that interval etc. is to be adjusted at a quick pace, at a slow speed
Adjustment modes control electric control valve by programmable controller 16 and realize that slowly interval etc. is to be adjusted.
Specific adjustment mode is as follows：
(1) when sewage leaving water temperature t1 is more than set temperature T1：
If | T1-t1 | >=△ T1 close discharge of sewage regulating valve, and 0.4% was closed every 3 seconds, realize that interval waits at a quick pace
The effect of adjustment, waiting in 3 seconds ensure that the temperature after sewage cooling is stable, and then the accurate transmission gives sewage temperature pick-up
Device is in quick adjustment modes, adjusts 0.4% every time, both ensure that adjustment because actual temperature and set temperature difference are larger
Efficiency also ensures the accuracy of adjustment；
If △ T2≤| T1-t1 |≤△ T1 close discharge of sewage regulating valve, close 0.1% every 6 seconds, wait for sewage temperature
Degree is stablized, while the new coolant-temperature gage of heat exchange therewith being waited for stablize, it is ensured that the temperature that sewage temperature transmitter is shown is accurate, the tune
It is whole to be in slow-action main plot；
Until | T1-t1 |≤△ T2 stop adjustment discharge of sewage regulating valve, water temperature are waited for tend to setting value T1；
(2) because sewage and new water heat exchange, leaving water temperature influence each other, the two needs to reach dynamic equilibrium, institute
When being less than set temperature T1 with sewage leaving water temperature t1, need to carry out following operate：
If | T1-t1 | >=△ T1 open discharge of sewage regulating valve, and 0.4% was opened every 3 seconds, realize that interval waits at a quick pace
The effect of adjustment；
If △ T2≤| T1-t1 |≤△ T1 open discharge of sewage regulating valve, open 0.1% every 6 seconds, wait for sewage temperature
Degree is stablized, while the new coolant-temperature gage of heat exchange therewith being waited for stablize, it is ensured that the temperature that sewage temperature transmitter is shown is accurate, the tune
It is whole to be in slow-action main plot；
Until | T1-t1 |≤△ T2 stop adjustment discharge of sewage regulating valve, water temperature are waited for tend to setting value T1.
By closing discharge of sewage regulating valve, the flow of sewage is reduced, the effect for reducing sewage leaving water temperature is realized, passes through
Discharge of sewage regulating valve is opened, the flow of sewage is increased, realizes the effect for improving new water leaving water temperature.
(3) when new water leaving water temperature t2 is more than set temperature T2：
If | T2-t2 | >=△ T1 open new Water flow adjusting valve, and 0.4% was opened every 3 seconds, realize that interval waits at a quick pace
The effect of adjustment, waiting in 3 seconds ensure that the temperature after new water heating is stable, and then the accurate transmission gives new coolant-temperature gage pick-up
Device is in quick adjustment modes because actual temperature and set temperature difference are larger, and 0.4% interval of adjustment waits for every time, both protects
The accuracy that regulated efficiency also ensures adjustment is demonstrate,proved；
If △ T2≤| T2-t2 |≤△ T1 open new Water flow adjusting valve, open 0.1% every 6 seconds, wait for new water temperature
Degree is stablized, while the sewage temperature of heat exchange therewith being waited for stablize, it is ensured that the temperature that new coolant-temperature gage transmitter is shown is accurate, the tune
It is whole to be in slow-action main plot；
Until | T2-t2 |≤△ T2 stop adjusting new Water flow adjusting valve, water temperature are waited for tend to setting value T1；
(4) when new water leaving water temperature t2 is less than set temperature T2：
If | T2-t2 | >=△ T1 close new Water flow adjusting valve, and 0.4% was closed every 3 seconds, realize that interval waits at a quick pace
The effect of adjustment, waiting in 3 seconds ensure that the temperature after new water heating is stable, and then the accurate transmission gives new coolant-temperature gage pick-up
Device is in quick adjustment modes because actual temperature and set temperature difference are larger, and 0.4% interval of adjustment waits for every time, both protects
The accuracy that regulated efficiency also ensures adjustment is demonstrate,proved；
If △ T2≤| T2-t2 |≤△ T1 close new Water flow adjusting valve, close 0.1% every 6 seconds, wait for new water temperature
Degree is stablized, while the sewage temperature of heat exchange therewith being waited for stablize, it is ensured that the temperature that new coolant-temperature gage transmitter is shown is accurate, the tune
It is whole to be in slow-action main plot；
Until | T2-t2 |≤△ T2 stop adjusting new Water flow adjusting valve, water temperature are waited for tend to setting value T1.
By opening new Water flow adjusting valve, increases the flow of new water, realize the effect for reducing new water leaving water temperature, pass through
New Water flow adjusting valve is closed, the flow of new water is reduced, realizes the effect for improving new water leaving water temperature.
Only as described above, only specific embodiments of the present invention, when the model that cannot be limited the present invention with this and implement
It encloses, therefore the displacement of its equivalent assemblies, or according to equivalent variations made by scope of patent protection of the present invention and modification, all should still belong to this hair
The scope that bright claims are covered.
Claims (4)
1. a kind of double PID control devices of waste water residual heat recycling, including wastewater inlet, new water inlet, heat extraction replacement part, dirt
Water out and new water out, characterized in that the wastewater inlet is connected with heat extraction replacement part by wastewater influent pipeline,
The new water inlet is connected with heat extraction replacement part by new water inlet pipeline, the heat extraction replacement part and sewage
Outlet is connected by sewage outlet pipeline, and the heat extraction replacement part is connected with new water out by new water outlet pipeline,
The sewage outlet pipeline is equipped with sewage flow transducer, sewage temperature transmitter, discharge of sewage regulating valve, and the new water goes out
Water lines be equipped with new flow transmitter, new coolant-temperature gage transmitter, new Water flow adjusting valve, the sewage flow transducer with
Programmable controller is electrically connected, and the new flow transmitter is electrically connected with programmable controller, the sewage temperature transmitter
It is electrically connected with programmable controller, the new coolant-temperature gage transmitter is electrically connected with programmable controller, and the discharge of sewage is adjusted
Valve is electrically connected with programmable controller, and the new Water flow adjusting valve is electrically connected with programmable controller.
2. the double PID control devices of waste water residual heat recycling according to claim 1, which is characterized in that the discharge of sewage tune
Section valve is electric control valve, and the new Water flow adjusting valve is electric control valve.
3. a kind of method recycling double PID control devices using waste water residual heat, specifically includes following steps：
(1) sewage leaving water temperature T1 and new water leaving water temperature T2 is set by programmable controller, opens wastewater inlet and Xin Shui
After import, sewage and new water carry out heat exchange in heat extraction replacement part, separately flows into sewage outlet pipeline and Xin Shui goes out
Water lines；
(2) sewage flow transducer and new flow transmitter monitor the reality in sewage outlet pipeline and new water outlet pipeline respectively
Shi Liuliang is transferred data in programmable controller；Sewage temperature transmitter monitors sewage in sewage outlet pipeline in real time
Real time temperature t1, new coolant-temperature gage transmitter monitor the real time temperature t2 of new water in new water outlet pipeline, transfer data in real time
In programmable controller；
(3) specified maximum temperature difference value is set as Δ T1 by programmable controller, sets specified minimum temperature difference value as Δ T2, can compiles
Range controller is compared the sewage temperature t1 received with sewage set temperature T1, obtains the practical temperature difference of sewage | T1-t1
|, programmable controller is compared the new coolant-temperature gage t2 received with new water set temperature T2, obtains the practical temperature difference of new water
|T2-t2|；
(4) the practical temperature difference of sewage is compared with Δ T1, Δ T2, the practical temperature difference of new water and Δ T1, Δ T2 is compared
Compared with programmable controller is adjusted regulating valve according to comparison result, specifically includes quickly adjustment, adjusts at a slow speed and do not adjust
Three models：
When | T1-t1 |>When Δ T1, adjustment discharge of sewage regulating valve enters quick adjustment modes, when | T2-t2 |>When Δ T1, adjustment
New Water flow adjusting valve enters quick adjustment modes；
As Δ T2<|T1-t1|<When Δ T1, adjustment discharge of sewage regulating valve enters adjustment modes at a slow speed, as Δ T2<|T2-t2|<
When Δ T1, adjusts new Water flow adjusting valve and enter adjustment modes at a slow speed；
When | T1-t1 |<When Δ T2, discharge of sewage regulating valve does not adjust, when | T2-t2 |<When Δ T2, new Water flow adjusting valve is uncomfortable
It is whole.
4. the method according to claim 3 for recycling double PID control devices using waste water residual heat, which is characterized in that described
Quick adjustment modes control electric control valve by programmable controller and realize to be adjusted, the slow-action mould preparation such as interval at a quick pace
Formula controls electric control valve by programmable controller and realizes that slowly interval etc. is to be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307446.7A CN108332596A (en) | 2018-04-08 | 2018-04-08 | The double PID control device and methods of waste water residual heat recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307446.7A CN108332596A (en) | 2018-04-08 | 2018-04-08 | The double PID control device and methods of waste water residual heat recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108332596A true CN108332596A (en) | 2018-07-27 |
Family
ID=62933939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810307446.7A Pending CN108332596A (en) | 2018-04-08 | 2018-04-08 | The double PID control device and methods of waste water residual heat recycling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108332596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405347A (en) * | 2018-12-05 | 2019-03-01 | 江苏天舒电器有限公司 | A kind of bathroom utilizes control system for heat pump and control method with Multi-stage heat |
| CN109813166A (en) * | 2019-01-23 | 2019-05-28 | 新奥数能科技有限公司 | The energy recycling system and control method of sewage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201522128U (en) * | 2009-10-29 | 2010-07-07 | 济南杰易达能源发展有限公司 | Full automatic sewage waste heat recovery device in paper-making industry |
| CN201892477U (en) * | 2010-01-12 | 2011-07-06 | 杨泰和 | Fixed heat exchange device capable of regulating exchange flow automatically |
| CN104061818A (en) * | 2013-03-20 | 2014-09-24 | 何荣志 | Temperature-control and energy-saving circulating water operation system |
| CN105605955A (en) * | 2016-01-28 | 2016-05-25 | 西安交通大学 | Fused salt heat exchange experimental device and control method thereof |
| CN208091286U (en) * | 2018-04-08 | 2018-11-13 | 威海双信节能环保设备有限公司 | A kind of double PID control devices of waste water residual heat recycling |
-
2018
- 2018-04-08 CN CN201810307446.7A patent/CN108332596A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201522128U (en) * | 2009-10-29 | 2010-07-07 | 济南杰易达能源发展有限公司 | Full automatic sewage waste heat recovery device in paper-making industry |
| CN201892477U (en) * | 2010-01-12 | 2011-07-06 | 杨泰和 | Fixed heat exchange device capable of regulating exchange flow automatically |
| CN104061818A (en) * | 2013-03-20 | 2014-09-24 | 何荣志 | Temperature-control and energy-saving circulating water operation system |
| CN105605955A (en) * | 2016-01-28 | 2016-05-25 | 西安交通大学 | Fused salt heat exchange experimental device and control method thereof |
| CN208091286U (en) * | 2018-04-08 | 2018-11-13 | 威海双信节能环保设备有限公司 | A kind of double PID control devices of waste water residual heat recycling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405347A (en) * | 2018-12-05 | 2019-03-01 | 江苏天舒电器有限公司 | A kind of bathroom utilizes control system for heat pump and control method with Multi-stage heat |
| CN109405347B (en) * | 2018-12-05 | 2021-08-06 | 江苏天舒电器有限公司 | Control method of multi-stage heat utilization heat pump control system for bathroom |
| CN109813166A (en) * | 2019-01-23 | 2019-05-28 | 新奥数能科技有限公司 | The energy recycling system and control method of sewage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108332596A (en) | The double PID control device and methods of waste water residual heat recycling | |
| CN203778722U (en) | Continuous casting machine crystallizer cooling water device capable of adjusting temperature | |
| CN203785083U (en) | Intelligent heat supply system for heat exchange station | |
| CN105630033A (en) | Water temperature control method and control system thereof based on adaptable fuzzy PID | |
| CN108278590A (en) | A kind of system and method for HTGR Nuclear Power Plant Cooling at reactor shutdown | |
| CN208091286U (en) | A kind of double PID control devices of waste water residual heat recycling | |
| CN106422399A (en) | Energy-efficient evaporative concentration and crystallization system for salt solution and control method of system | |
| CN106610052A (en) | A constant-temperature difference and variable-flow hydraulic equilibrium adjusting method and system | |
| CN106482349A (en) | A kind of gas heater secondary pressure intelligent adjusting method and system | |
| CN104199483A (en) | Multi-path liquid temperature regulating device and temperature control method | |
| CN103486655A (en) | Hydraulic equilibrium debugging device of heating and ventilating system and debugging method thereof | |
| CN207081075U (en) | Integral intelligent intake apparatus of heat consumer | |
| CN102353158A (en) | Constant temperature control method and device for water heater | |
| CN202221173U (en) | Control device for constant temperature of water heater | |
| CN206311986U (en) | Automatic temperature control apparatus | |
| CN107466187A (en) | A kind of liquid cooling heat-exchanger and its control method | |
| CN207962612U (en) | A kind of system of HTGR Nuclear Power Plant Cooling at reactor shutdown | |
| CN106839083B (en) | A kind of intelligence heat management system and its management method | |
| CN213701728U (en) | Be used for as cast mould quick cooling system of aluminium base piston | |
| CN204787296U (en) | Conduction oil temperature control device | |
| CN211847834U (en) | Primary cooler coal gas temperature regulating device | |
| CN209386273U (en) | Hydrophobic recycling system in a kind of production of yeast extract | |
| CN201501069U (en) | Hot plate temperature control device of plate vulcanizing machine | |
| CN103954058B (en) | The real-time thermoregulating system of solar energy hot water supply | |
| CN209295731U (en) | A kind of ammonium hydroxide afterheat utilizing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180727 |