CN1667535A - Circulating pump real time quantity regulation and control system - Google Patents
Circulating pump real time quantity regulation and control system Download PDFInfo
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- CN1667535A CN1667535A CNA2005100678580A CN200510067858A CN1667535A CN 1667535 A CN1667535 A CN 1667535A CN A2005100678580 A CNA2005100678580 A CN A2005100678580A CN 200510067858 A CN200510067858 A CN 200510067858A CN 1667535 A CN1667535 A CN 1667535A
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- boiler
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- pump
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- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a circulating water pump real-time amount adjustment control system, which comprises a multichannel water distribution apparatus, a boiler control apparatus and a water pump control apparatus.The multichannel water distribution apparatus distributes water according to water temperature and demand, wherein, a boiler control apparatus detects the maximum temperature, when boiler load increases and water temperature rises to set point, a water pump control apparatus will control variable-speed water pump to send out increased load heat, then, temperature drops to set point.Conversely, when a boiler load decreases and water temperature is lower than set point, a water pump control appatarus will control variable-speed water pump to reduce speed and flow, then temperature rises to set point.
Description
Technical field
The present invention relates to the automatic control technology field, particularly a water is measured the regulation technology field in real time in the boiler heating system.
Background technology
In boiler heating system, the thermal barrier that water is meant the boiler of flowing through, the heat delivered of boiler for producing is gone out.In the connected mode of water and user's recirculated water (secondary water), the heat transmission equipment that passes through that has links to each other indirectly, and what have directly links to each other in mixed mode.
A water circulating pump " concentrating boiler room high-temperature water heat exchange heating " in the boiler heating system generally adopts the high power consumption control method of " matter adjusting " or " matter, amount mixing are regulated " at present." water circulating pump " is meant the power-equipment that the heat delivery of boiler for producing is arrived each heat exchange station in high-temperature water heat exchange heating system.With regard to its adjusting, " concentrating the boiler room heating " generally adopts the control method of " matter adjusting " or " matter, amount mixing are regulated ", and these two kinds of control methods do not have best energy-conserving regulate and control measure to a water pump, and its shortcoming is:
1, a water circulating pump is all the time in " high load capacity " operation down relatively.Concerning heat load, just cold phase, freeze-up, the load of cold phase of end different, and every day day part load also different, do not have best energy-conservation control method, an ebullator increases power consumption all the time in " high load capacity " operation down relatively.Though the boiler room that has has been installed the pump arrangements for speed regulation No. one time, when underload, regulate at times, belong to " matter, amount are mixed adjusting ", saved the part electric energy, can not realize automatic control, real-time regulated, influenced by human factor, energy conservation potential is also very big.The way that the boiler room that has adopts joint door or installation motor valve door etc. to improve resistance coefficients is regulated flow, regulates with the use lift of " sacrifice " water pump, and its effect is " getting half the result with twice the effort " (Δ p=s
bQ
2, S
bIncrease, Δ p increases).
When 2, secondary water was used " weather compensation " heating system, one time pipe network adjusting difficulty was big, and does not reach the optimum adjustment effect, causes interim heating quality to reduce, and increases thermal energy consumption and increases power consumption.
3, each heat exchange station differs apart from the boiler room distance, and during a water quality regulation, the near-end temperature raising is fast, the far-end cooling causes thermal waste slowly; The near-end cooling is fast, far-end heats up makes heating quality reduce slowly; During the heat exchange station independent regulation, because each heat exchange station is once influencing each other in the net, regulate arbitrary system and all can change the once total drag coefficients of net, cause other heat-exchange system flows to change, therefore to increase more human and material resources and participate in regulating, but still not reach timely, effective regulating effect.
Summary of the invention
The control method that the objective of the invention is to change a water " matter adjusting " is " amount is regulated in real time ", to realize saves energy, to guarantee the purpose of heating.
Technical scheme of the present invention is as follows: a kind of circulating pump real time quantity regulation and control system, comprise the boiler group of forming by boiler 71, boiler discharging tube road group 1-1, boiler water inlet pipe group 1-3, electrically operated valve group 1-2, temperature controller group 4-2, temperature controller 6-2, sets of temperature sensors 4-1, sets of temperature sensors 5-2, temperature polling instrument 5-1, velocity fluctuation pump 6-1, heat transmission equipment 2, the user 3, also comprise hyperchannel water yield distributor 4, boiler controlling device 5, pump control unit 6, the outlet conduit group 1-1 of described boiler group 1 is communicated with the water inlet 2-1 of heat transmission equipment 2 by electrically operated valve group 1-2, the suction inlet 6-1-1 of velocity fluctuation pump 6-1 in the water delivering orifice 2-2 of described heat transmission equipment 2 and the pump control unit 6 is communicated with, the water delivering orifice 6-1-2 of described velocity fluctuation pump 6-1 is communicated with the water inlet pipe group 1-3 of boiler group 1, user 3 goes out, going out of water inlet and described heat transmission equipment 2, water inlet is communicated with, the sets of temperature sensors 4-1 that is installed with on boiler group 1 outlet conduit group 1-1 is transformed into electric signal by temperature controller group 4-2 and electrically operated valve group 1-2 control boiler leaving water temperature with detected temperature signal, be installed with that sets of temperature sensors 5-2 on boiler group 1 outlet conduit group 1-1 is transformed into detected temperature signal electric signal and by the touring leaving water temperature that detects each boiler 7 in the boiler group 1 of temperature polling instrument 5-1, and will patrol and examine the maximum temperature value that obtains and be converted into the rotating speed of automatically controlled signal by temperature controller 6-2 control velocity fluctuation pump 6-1.
Described hyperchannel water yield distributor 4 is made up of temperature controller group 4-2 and the sets of temperature sensors 4-1 that is installed with on boiler group 1 outlet conduit group 1-1, described sets of temperature sensors 4-1 is electric signal and the electrically operated valve group 1-2 by temperature controller group 4-2 control boiler group 1 outlet conduit group 1-1 with the temperature transition of boiler group 1 outlet conduit group 1-1, and the boiler leaving water temperature is controlled at ratings.
Described boiler controlling device 5 is made up of a temperature polling instrument 5-1 and the sets of temperature sensors 5-2 that is installed with on boiler 1 outlet conduit group 1-1, in order to the touring leaving water temperature that detects each boiler 7 in the boiler group 1, be converted into automatically controlled signal and input to temperature controller 6-2 in the pump control unit 6 patrolling and examining the maximum temperature value that obtains.
Described pump control unit 6 is made up of temperature controller 6-2 and velocity fluctuation pump 6-1, and temperature controller 6-2 receives the rotating speed of the electric signal of temperature polling instrument 5-1 in the boiler controlling device 5 with control velocity fluctuation pump 6-1.
Because adopt technique scheme, the present invention has following remarkable advantage:
1, power savings is remarkable, improves heating quality: one time the hydromining consumption is regulated, and the boiler room quantity of heat given up changes with the variation of flow, the quantity of heat given up of each heat exchange station changes simultaneously, realize the concentrated regulation and control in boiler room heat load, improved heating quality, do not wasted heat energy again.
2, improve the security of boiler operatiopn: with boiler water supply temperature Control Circulation water pump, many again cover " overtemperature " protective devices make boiler operatiopn safer, reliable.In the heating system that matter is regulated at times, hot water expands during intensification, causes the boiler superpressure, and the constant coolant-temperature gage of the present invention when moving continuously, has been avoided the generation of this phenomenon.
Description of drawings
Fig. 1 systematic schematic diagram of the present invention
Wherein: 1-boiler group, the outlet conduit group of 1-1-boiler group 1,1-2-electrically operated valve group, the water inlet pipe group of 1-3-boiler group 1, the 2-heat transmission equipment, the water inlet of 2-1-heat transmission equipment 2, the water delivering orifice of 2-2-heat transmission equipment 2,3-user, 4-hyperchannel water yield distributor, the 4-1-sets of temperature sensors, 4-2-temperature controller group, 5-boiler controlling device, the 5-1 temperature polling instrument, the 5-2-sets of temperature sensors, 6-pump control unit, 6-1-velocity fluctuation pump, the suction inlet of 6-1-1-velocity fluctuation pump 6-1, the water delivering orifice of 6-1-2-velocity fluctuation pump 6-1,6-2-temperature controller, 7-boiler.
Embodiment
The ultimate principle of native system is: get rid of human factor, automatically control boiler leaving water temperature is to its nominal operation temperature, guarantee confession, the backwater temperature difference maximum of boiler, when carrying identical heat, the flow minimum, satisfying under the prerequisite of thermal load, the electric energy that utilizes RHVC to reduce by reducing flow is saved out.
The core theory of the present invention's economize on electricity is: " the power scaling law of centrifugal pump ":
λ
N＝λ
ρ·λ
n 3·λ
L 5
That is: the power similarity coefficient λ of water pump
NDensity similarity coefficient λ with fluid
ρ, the rotating speed similarity coefficient 3 power λ
n 3, impeller physical dimension similarity coefficient 5 power λ
L 5Be directly proportional.
Constant when the physical parameter of water pump conveyance fluid, when the impeller physical dimension is constant, that is: density similarity coefficient λ
ρWith impeller physical dimension similarity coefficient λ
LConstant, then the power of Xiao Haoing is directly proportional with 3 powers of rotating speed, promptly is directly proportional with 3 powers of flow:
P, n, G represent power, rotating speed and flow respectively in the formula.
Thus formula as can be known, when flow reduced by 10%, the power of consumption reduced by 27.1%.Flow reduced by 20% o'clock, and the power of consumption reduces by 48.8%.Flow reduced by 50% o'clock, and the power of consumption then reduces by 87.5%.
So water circulating pump of control is realized " amount is regulated in real time ", must possess following three conditions:
1, a water circulating pump must be realized automatic control;
2, guarantee that boiler moves under the nominal operation temperature, safety, reliable;
3, necessary natural equilibrium (flow equilibrium between each heat exchange station) of pipe network;
Water real time quantity regulation and control system of the present invention is by hyperchannel water yield distributor
4, boiler controlling device 5, pump control unit 6 are formed.Hyperchannel water yield distributor 4 distributes the water yield on demand according to the boiler leaving water temperature.The touring leaving water temperature that detects each boiler 7 (or other passage) of temperature polling instrument 5-1 in the boiler controlling device 5 is converted into automatically controlled signal with patrolling and examining the maximum temperature value that obtains, by the rotating speed of temperature controller 6-2 control velocity fluctuation pump 6-1.
When the boiler load increase, leaving water temperature is increased to when being higher than setting value (smaller or equal to the rated temperature of boiler), and pump control unit 6 control velocity fluctuation pump 6-1 strengthen rotating speeds, and augmented flow is taken away the load heat that increases, and reduces temperature to setting value.On the contrary, when the boiler load reduction, when leaving water temperature was lower than setting value, pump control unit 6 control velocity fluctuation pump 6-1 reduced rotating speeds, reduce flow, and the rising temperature is to setting value.Like this, real-time ensuring boiler design temperature is operation down, when carrying same heat, and discharge minimum, the purpose of realization saves energy.
Hyperchannel water yield distributor 4 is made up of temperature controller group 4-2 and the temperature sensor 4-1 that is installed on the boiler discharging tube road 1-1 (or other heated passage), electrically operated valve 1-2 by the water outlet of control boiler is controlled at ratings to the boiler leaving water temperature, makes the discharge of boiler just in time satisfy the needs of loading.
Boiler controlling device 5 is made up of a temperature polling instrument 5-1 and the sets of temperature sensors 5-2 that is installed on the boiler discharging tube road (or other heated passage), the touring leaving water temperature that detects each boiler 7 (or other passage) in the boiler group 1 is converted into automatically controlled signal and delivers to pump control unit 6 to regulate the rotating speed of velocity fluctuation pump 6-1 patrolling and examining the maximum temperature value that obtains.
The present invention also can control the supporting use of products with other boilers, uses at the stable fuel oil of fuel quality, gas heating system, can further improve automatization level and heating quality, saves energy.
Among the present invention, temperature controller among the temperature controller group 4-2 can be selected the WD-1 type temperature controller for use, the temperature sensor 4-1, the 5-2 that are installed on the boiler discharging tube road 1-1 (or other heated passage) can select PT100 type temperature sensor for use, temperature polling instrument 5-1 in the boiler controlling device 5 can select the temperature polling instrument of XJ-1 type for use, velocity fluctuation pump 6-1 in the pump control unit 6 can select the velocity fluctuation pump of BS-1 type for use, and temperature controller 6-2 can select the temperature controller of WD-1 type for use.
The present invention is simple in structure, control accuracy is high, economize on electricity is safe, adjusting is easy for installation, has good economic benefit and good social benefit, and vast potential for future development.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any person skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to equivalent embodiment, every content that does not break away from technical solution of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong to the technical solution of the present invention scope according to technical spirit of the present invention.
Claims (4)
1, a kind of circulating pump real time quantity regulation and control system, comprise the boiler group of forming by boiler (7) (1), boiler discharging tube road group (1-1), boiler water inlet pipe group (1-3), electrically operated valve group (1-2), temperature controller group (4-2), temperature controller (6-2), sets of temperature sensors (4-1), sets of temperature sensors (5-2), temperature polling instrument (5-1), velocity fluctuation pump (6-1), heat transmission equipment (2), user (3), it is characterized in that: also comprise hyperchannel water yield distributor (4), boiler controlling device (5), pump control unit (6), the outlet conduit group (1-1) of described boiler group (1) is communicated with the water inlet (2-1) of heat transmission equipment (2) by electrically operated valve group (1-2), the suction inlet (6-1-1) of the velocity fluctuation pump (6-1) in the water delivering orifice (2-2) of described heat transmission equipment (2) and the pump control unit (6) is communicated with, the water delivering orifice (6-1-2) of described velocity fluctuation pump (6-1) is communicated with the water inlet pipe group (1-3) of boiler group (1), going out of user (3), going out of water inlet and described heat transmission equipment (2), water inlet is communicated with, the sets of temperature sensors (4-1) that is installed with on boiler group (1) outlet conduit group (1-1) is transformed into electric signal by temperature controller group (4-2) and electrically operated valve group (1-2) control boiler leaving water temperature with detected temperature signal, be installed with that sets of temperature sensors (5-2) on boiler group (1) outlet conduit group (1-1) is transformed into electric signal with detected temperature signal and by the touring leaving water temperature that detects each boiler (7) in the boiler group (1) of temperature polling instrument (5-1), and will patrol and examine the maximum temperature value that obtains and be converted into the rotating speed of automatically controlled signal by temperature controller (6-2) control velocity fluctuation pump (6-1).
2, a kind of circulating pump real time quantity regulation and control system as claimed in claim 1, it is characterized in that: described hyperchannel water yield distributor (4) is made up of temperature controller group (4-2) and the sets of temperature sensors (4-1) that is installed with on boiler group (1) outlet conduit group (1-1), described sets of temperature sensors (4-1) is electric signal and the electrically operated valve group (1-2) by temperature controller group (4-2) control boiler group (1) outlet conduit group (1-1) with the temperature transition of boiler group (1) outlet conduit group (1-1), and the boiler leaving water temperature is controlled at ratings.
3, a kind of circulating pump real time quantity regulation and control system as claimed in claim 1, it is characterized in that: described boiler controlling device (5) is made up of a temperature polling instrument (5-1) and the sets of temperature sensors (5-2) that is installed with on boiler (1) outlet conduit group (1-1), in order to the touring leaving water temperature that detects each boiler (7) in the boiler group (1), be converted into automatically controlled signal and input to temperature controller (6-2) in the pump control unit (6) patrolling and examining the maximum temperature value that obtains.
4 as claim 1 or 3 described a kind of circulating pump real time quantity regulation and control systems, it is characterized in that: described pump control unit (6) is made up of temperature controller (6-2) and velocity fluctuation pump (6-1), and temperature controller (6-2) receives the rotating speed of the electric signal of temperature polling instrument (5-1) in the boiler controlling device (5) with control velocity fluctuation pump (6-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100678580A CN1301450C (en) | 2005-04-29 | 2005-04-29 | Circulating pump real time quantity regulation and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100678580A CN1301450C (en) | 2005-04-29 | 2005-04-29 | Circulating pump real time quantity regulation and control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667535A true CN1667535A (en) | 2005-09-14 |
| CN1301450C CN1301450C (en) | 2007-02-21 |
Family
ID=35038661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100678580A Expired - Fee Related CN1301450C (en) | 2005-04-29 | 2005-04-29 | Circulating pump real time quantity regulation and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1301450C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563568B (en) * | 2006-12-07 | 2011-11-16 | 格伦德福斯管理联合股份公司 | Method of controlling a speed-regulatable heating circulation pump |
| CN102269444A (en) * | 2011-05-27 | 2011-12-07 | 哈尔滨工业大学 | Energy control system and method of heat supply and cold water supply circulation |
| CN101118080B (en) * | 2007-09-03 | 2012-05-30 | 陈旸 | Central air-conditioning terminal intelligent dynamic constant-current control device |
| CN104075369A (en) * | 2013-03-27 | 2014-10-01 | 松下电器产业株式会社 | Heat pump water heater |
| CN114320872A (en) * | 2021-12-31 | 2022-04-12 | 浙江工业大学台州研究院 | Test system of electronic water pump for vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2176275B (en) * | 1985-06-10 | 1990-02-14 | British Gas Corp | Control of fluid temperature in a wet central heating system |
| CN1091196A (en) * | 1993-02-16 | 1994-08-24 | 张满金 | Hot water heating circulating system |
| CN1082693A (en) * | 1993-04-30 | 1994-02-23 | 张力 | A kind of heating method and heating equipment thereof |
| CN1189597A (en) * | 1997-01-28 | 1998-08-05 | 梁佩生 | Cooperative operating system of normal pressure boiler and pressure-bearing boiler |
| DE19948456A1 (en) * | 1999-10-08 | 2001-04-19 | Werner Puchta | A room heating system has a means for adapting the heat supply to a hot water radiator for seasonal variations. |
-
2005
- 2005-04-29 CN CNB2005100678580A patent/CN1301450C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563568B (en) * | 2006-12-07 | 2011-11-16 | 格伦德福斯管理联合股份公司 | Method of controlling a speed-regulatable heating circulation pump |
| CN101118080B (en) * | 2007-09-03 | 2012-05-30 | 陈旸 | Central air-conditioning terminal intelligent dynamic constant-current control device |
| CN102269444A (en) * | 2011-05-27 | 2011-12-07 | 哈尔滨工业大学 | Energy control system and method of heat supply and cold water supply circulation |
| CN104075369A (en) * | 2013-03-27 | 2014-10-01 | 松下电器产业株式会社 | Heat pump water heater |
| CN104075369B (en) * | 2013-03-27 | 2018-03-02 | 松下电器产业株式会社 | Heat-pump-type hot-water supply |
| CN114320872A (en) * | 2021-12-31 | 2022-04-12 | 浙江工业大学台州研究院 | Test system of electronic water pump for vehicle |
| CN114320872B (en) * | 2021-12-31 | 2024-04-12 | 浙江工业大学台州研究院 | Test system of automotive electronic water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1301450C (en) | 2007-02-21 |
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