CN2779283Y - Intelligent control central heating system - Google Patents
Intelligent control central heating system Download PDFInfo
- Publication number
- CN2779283Y CN2779283Y CN 200420063973 CN200420063973U CN2779283Y CN 2779283 Y CN2779283 Y CN 2779283Y CN 200420063973 CN200420063973 CN 200420063973 CN 200420063973 U CN200420063973 U CN 200420063973U CN 2779283 Y CN2779283 Y CN 2779283Y
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- Prior art keywords
- heating system
- temperature
- intelligent
- central heating
- control
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Abstract
The utility model relates to an intelligent control central heating system which mainly solves the shortages that poor heat supplying effect, deficient integral compatibility and hard obtaining of the optimum state of the integral heating system caused by that the existing heating system of the oil field regulates a heating apparatus by manual work. The utility model is characterized in that the central heating system also comprises an intelligent controller which receives signals coming from a temperature sensor and a pressure sensor and sends a control signal to an electric control valve; the temperature sensor and the pressure sensor receive temperature and pressure signals coming from a water supply pipeline, a water returning pipeline, a water returning cylinder and a water dividing cylinder. The utility model has the characteristics that the heat supplying effect is good, the intelligent control of the heating system can be realized and the energy is saved.
Description
Technical field:
The utility model relates to a kind of control system that is applied in the heat supply field, oil field, especially relates to a kind of central heating system that adopts Based Intelligent Control.
Background technology:
Existing each thermal substation of central heating system in oil field all is an independent regulation, only depend on manual type regulating to thermal substation for backwater valve, adopt this system mainly to have following shortcoming: manual adjustment low precision, untimely, shortage Total tune are difficult to reach the whole optimum state of heating system; And heating network waterpower is uneven and many unreasonable problems such as " big flow, the little temperature difference ", cause resident family's indoor temperature deviation bigger, sometimes Re resident family's temperature is up to more than 25 ℃, cold resident family is less than 12 ℃, and wasted a large amount of heats because near-end resident family temperature is too high, far-end resident family temperature does not reach requirement, influences social stability, and the heat capacity of heating system can not be brought into play to greatest extent simultaneously.
The utility model content:
In order to overcome existing oil field heating system with the manual adjustment heating plant, cause heating effect bad, lack Total tune, be difficult to reach the deficiency of the whole optimum state of heating system, the utility model provides a kind of Based Intelligent Control central heating system, this Based Intelligent Control central heating system has the characteristics of the intellectuality control that can carry out heating system automatically, has the beneficial effect that heating effect is good, save the energy.
The technical solution of the utility model is: this kind Based Intelligent Control central heating system, comprise temperature sensor, pressure sensor, be installed on water supply line, on the return piping and the electric control valve between the connecting pipeline, wherein said central heating system also comprises an intelligent controller, this intelligent controller is made up of programmable controller and corresponding peripheral circuit, and it receives and comes from the signal of temperature sensor, pressure sensor and send control signal to electric control valve.The integrated temperature transmitter of described temperature sensor, pressure sensor are intelligent pressure transmitter, and they then receive the temperature and pressure signal that comes from water supply line, return piping, backwater cylinder, divides water vat.
The utlity model has following beneficial effect: owing to take the Based Intelligent Control central heating system of such scheme can pass through temperature sensor, pressure sensor is gathered water supply line in real time, return piping, the backwater cylinder, divide the temperature and pressure signal of water vat and it is passed to intelligent controller, in intelligent controller under the control action of initialize program, automatically regulate the aperture of electric control valve, make the pipe network temperature remain on desired value, and then reach timely, control to adjust the heat supply network parameter accurately, can solve the heating power operating mode of heating system and the problem of hydraulic regime imbalance comprehensively, improve heating effect, energy savings, improve user's satisfaction rate, improve the heating enterprise managerial skills.
Description of drawings:
Accompanying drawing 1 is a composition schematic diagram of the present utility model;
Accompanying drawing 2 is the schematic diagrames after the utility model is used.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this kind Based Intelligent Control central heating system, comprise temperature sensor, pressure sensor, be installed on water supply line, on the return piping and the electric control valve between the connecting pipeline, wherein this central heating system also comprises an intelligent controller, this intelligent controller receives and comes from the signal of temperature sensor, pressure sensor and send control signal to electric control valve, and described temperature sensor, pressure sensor receive the temperature and pressure signal that comes from water supply line, return piping, backwater cylinder, divides water vat.Wherein, the main effect of field controller is to carry out analog-to-digital conversion, and signal is carried out calculation process.
The utility model is based on following know-why and develops:
When hot water networking stable state was moved, as not considering the loss on the way of pipe network, then the heating load at networking should equal the thermal discharge of custom system heat dissipation equipment, also equaled hot user's thermic load simultaneously.
Under the heat supply outdoor calculate temperature, heat dissipation equipment then has following heat balance equation if adopt radiator:
Q′
1＝Q′
2＝Q′
3
Q′
1＝qV(t
n-t′
w)
Q′
2＝kF(t′
p-t
n)＝AF((t′
g+t′
h)/2-t
n)
1+B
Q′
3＝cG′(t′
g-t′
h)/3600＝1.163G′(t′
g-t′
h)
Under arbitrary outdoor temperature, can write out and top similar heat balance equation:
Q
1＝Q
2＝Q
3
Q
1＝qV(t
n-t
w)
Q
2＝kF(t
p-t
n)＝AF((t
g+t
h)/2-t
n)
1+B
Q
3＝cG(t
g-t
h)/3600＝1.163G(t
g-t
h)
Heat balance equation under the actual motion condition is compared with the equation under the design point, can be obtained:
Q
p＝Q
1/Q′
1＝Q
2/Q′
2＝Q
3/Q′
3＝(t
n-t
w)/(t
n-t′
w)＝((t
g+t
h-2t
n)/(t′
g+t′
h-2t
n))
1+B＝G
p(t
g-t
h)/(t′
g-t′
h)--------------------------①
1. formula is the fundamental formular that the heat supply of user's interior radiator hot-water heating system is regulated.
1. the formula simultaneous can obtain t
g, t
hFormula:
t
g＝t
n+(t′
g+t′
h-2t
n)((t
n-t
w)/(t
n-t′
w))1
/1+B/2+((t′
g-t′
h)/2G
p)×((t
n-t
w)/(t
n-t′
w))--②
t
h＝t
n+(t′
g+t′
h-2t
n)((t
n-t
w)/(t
n-t′
w))
1/1+B/2-((t′
g-t′
h)/2G
p)×((t
n-t
w)/(t
n-t′
w))--③
Select supply water temperature the most directly perceived as controlled parameter, it can directly react the temperature of custom system, is convenient to that administrative staff measure, observe, control, and control channel lags behind for a short time simultaneously, and the correction of room temperature is quick on the draw, and effect is remarkable.But 2. can find that the system water supply temperature is relevant with the relative discharge of heating system 3. from formula, it changes with the variation of flow, less stable, and it is not the monotropic function of outdoor temperature just like this.Though in heat supply running, can adopt matter to regulate, make G
p=1, make t
gBe not subjected to the influence of flow, but actual condition is difficult to and design conditions are consistent, i.e. G
p≠ 1, this will influence t
gAccuracy.Carry out from now in addition and press the heat charge, the flow of system is constantly to change, like this G
pValue is uncertain, also just can't guarantee t
gBe fixed value.
If with 2. 3. addition of formula, can get indoor confession, the average temperature t of backwater
p:
t
p＝(t
g+t
h)/2＝t
n+(t′
g+t′
h-2t
n)((t
n-t
w)/(t
n-t′
w))
1/1+B/2------------------④
Following formula shows, user's confession, backwater mean temperature t
pOnly with outdoor temperature t
wRelevant, though it can not directly reflect user's supply water temperature, it can reflect user's thermic load, and the most important is that it and custom system flow are irrelevant, and it is the monotropic function of outdoor temperature, promptly under the constant prerequisite of outdoor temperature, and t
pBe a fixed value, even the operation flow of secondary net changes, the user can reach the indoor temperature of expection.
The target that operation regulate to be pursued should make user's room temperature reach the design room temperature, and when tn is a constant, confession, return water temperature, the flow value that calculates this moment is and makes user's room temperature reach the operational factor of design room temperature.Can draw: under certain outdoor temperature, user's room temperature is that system supplies, the function of backwater mean temperature, and irrelevant with the flow system flow size.In other words, system all can reach the prospective users room temperature under different operation flows, is all a certain fixed numbers but its precondition must be confession, backwater mean temperature.Because confession, backwater mean temperature one are regularly, its heating load is also certain, thereby flow system flow is big more, and supply water temperature is low more, and return water temperature is high more, and supply backwater temperature difference is more little; Otherwise flow system flow is more little, and supply water temperature is high more, and return water temperature is low more, and supply backwater temperature difference is big more.In sum, should select the confession, backwater mean temperature of heating system as controlled parameter.
Be exactly an example that adopts Siemens S7 series programmable controller as intelligent controller below.
Native system is made up of field controller S7-300, integrative temperature transmitter, intelligent pressure transmitter, outdoor temperature transmitter etc., and the main effect of temperature transmitter is the collection site temperature signal.It is the collection site pressure signal that pressure transmitter mainly acts on.It is to gather the outdoor temperature signal that the outdoor temperature transmitter mainly acts on
Be installed in the integrative temperature transmitter HCK on the water supply line, 4～20mA the temperature signal that collects is delivered to the 3rd passage of first analog quantity input module SM331 of Siemens field controller S7-300, be installed in the integrative temperature transmitter HCK on the return piping, 4～20mA the temperature signal that collects is delivered to the 4th passage of first analog quantity input module SM331 of Siemens field controller S7-300, be installed in the intelligent pressure transmitter Smar LD-301 on the water supply line, 4～20mA the pressure signal that collects is delivered to the 5th passage of first analog quantity input module SM331 of Siemens field controller S7-300, be installed in the intelligent pressure transmitter Smar LD-301 on the return piping, 4～20mA the pressure signal that collects is delivered to the 6th passage of first analog quantity input module SM331 of Siemens field controller S7-300, be installed in the intelligent pressure transmitter Smar LD-301 on the branch water vat, 4～20mA the pressure signal that collects is delivered to the 7th passage of first analog quantity input module SM331 of Siemens field controller S7-300, be installed in the intelligent pressure transmitter Smar LD-301 on the backwater cylinder, 4～20mA the pressure signal that collects is delivered to the 8th passage of first analog quantity input module SM331 of Siemens field controller S7-300, be installed in the integrative temperature transmitter HCK on the branch water vat, 4～20mA the temperature signal that collects is delivered to the 1st passage of second analog quantity input module SM331 of Siemens field controller S7-300, be installed in the outdoor temperature transmitter on the outdoor thermometer screen, 4～20mA the temperature signal that collects is delivered to the 5th passage of second analog quantity input module SM331 of Siemens field controller S7-300, and 2#, 6#, 4～20mA valve position signal of 8# electric control valve deliver to Siemens field controller S7-300 second analog quantity input module SM331 the 6th, 7,8 passages, all signals enter after the PLC, through after the computing of field controller, 2#, 6#, 4～20mA signal of the output valve position of 8# electric control valve sends back valve body, in order to control its output, thereby realize the purpose of local intelligent control, the transmitting terminal CP340 of PLC is all temperature simultaneously, pressure, valve position and outdoor temperature signal are sent to the receiving terminal CP340 of central heating Surveillance center by local network, thereby be implemented on the WINCC interface of central heating command centre host computer and see all parameters, and can monitor them, the system schematic after the application is as shown in Figure 2.
Native system is reliable, and give full play to the function of Surveillance center, thermal substation, communication network, this control system has adopted the control structure of collecting and distributing control type, and promptly Surveillance center realizes concentrated monitoring, centralized management, the centralized dispatching of service data, and thermal substation is realized local intelligent control.
Because the function of control is transferred to thermal substation, even the control network interrupts, control system still can be finished the control function well, thereby the reliability of control has strengthened.Because hardware resource, software resource, the resources of human talents of Surveillance center are very abundant, can finish the function of a large amount of management, analysis, scheduling.Owing to strengthened the function of thermal substation and Surveillance center, dependence to communication network has reduced, control system still can be finished control, analysis, scheduling and service data management role well when communication failure, so the reliability of control system is very strong, and function is also very powerful.
Because the localization of control, the expansion of system is very flexibly, the debugging of system, safeguard also very convenient.
Native system is in the regional with fair wind integrated merit experiment of grand celebration, control system detects the necessary data of whole heating system by the on-the-spot PLC of each thermal substation, hydraulic regime and heating power operating mode to heat supply network are carried out analysis-by-synthesis, then to each thermal substation issuing command, coordinate whole system safety, economical operation.Each on-the-spot PLC controls on the spot, can regulate according to the instruction of Surveillance center's controller, also can be by instruction adjusting on the spot.Each thermal substation is independently controlled by control module respectively, and capital equipment all has the safety interlocking function in standing, and Surveillance center can monitor in real time to the operational factor of each thermal substation, and can implement Long-distance Control to key parameter.
Native system utilizes computer technology and white control techniques to finish the Based Intelligent Control of heating system, can reach and control to adjust the heat supply network parameter in time, accurately, can solve the heating power operating mode of heating system and the problem of hydraulic regime imbalance comprehensively, improve heating effect, energy savings, improve user's satisfaction rate, improve the heating enterprise managerial skills.
Claims (2)
1, a kind of Based Intelligent Control central heating system, comprise temperature sensor, pressure sensor, be installed on water supply line, on the return piping and the electric control valve between the connecting pipeline, it is characterized in that: described central heating system also comprises an intelligent controller, this intelligent controller receives and comes from the signal of temperature sensor, pressure sensor and send control signal to electric control valve, and described temperature sensor, pressure sensor receive the temperature and pressure signal that comes from water supply line, return piping, backwater cylinder, divides water vat.
2, a kind of Based Intelligent Control central heating system according to claim 1, it is characterized in that: described intelligent controller is a programmable controller, the integrated temperature transmitter of described temperature sensor, described pressure sensor are intelligent pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063973 CN2779283Y (en) | 2004-12-11 | 2004-12-11 | Intelligent control central heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063973 CN2779283Y (en) | 2004-12-11 | 2004-12-11 | Intelligent control central heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779283Y true CN2779283Y (en) | 2006-05-10 |
Family
ID=36753370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063973 Expired - Fee Related CN2779283Y (en) | 2004-12-11 | 2004-12-11 | Intelligent control central heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779283Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799190A (en) * | 2010-04-19 | 2010-08-11 | 江苏贝德莱特太阳能科技有限公司 | Solar energy concentrated heating control system |
| CN102507073A (en) * | 2011-10-27 | 2012-06-20 | 威海市天罡仪表股份有限公司 | Pressure and pressure difference combination measurement and communication realization method |
| CN102777974A (en) * | 2012-08-09 | 2012-11-14 | 毛振刚 | Automatic adjustment control system for centralized heating |
| CN103759330A (en) * | 2014-01-21 | 2014-04-30 | 山东鲁润热能科技有限公司 | Heat exchanging station intelligent network control system |
| CN103851674A (en) * | 2012-12-06 | 2014-06-11 | 赵连臣 | Heating station system device |
| CN103925641A (en) * | 2014-04-28 | 2014-07-16 | 中国石油大学(华东) | Heat supply pipe network hydraulic balance automatic adjustment method |
| CN104676738A (en) * | 2013-11-26 | 2015-06-03 | 哈尔滨恒誉名翔科技有限公司 | Water heating working condition monitoring system |
-
2004
- 2004-12-11 CN CN 200420063973 patent/CN2779283Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799190A (en) * | 2010-04-19 | 2010-08-11 | 江苏贝德莱特太阳能科技有限公司 | Solar energy concentrated heating control system |
| CN102507073A (en) * | 2011-10-27 | 2012-06-20 | 威海市天罡仪表股份有限公司 | Pressure and pressure difference combination measurement and communication realization method |
| CN102777974A (en) * | 2012-08-09 | 2012-11-14 | 毛振刚 | Automatic adjustment control system for centralized heating |
| CN103851674A (en) * | 2012-12-06 | 2014-06-11 | 赵连臣 | Heating station system device |
| CN103851674B (en) * | 2012-12-06 | 2016-06-29 | 赵连臣 | A kind of heat station system device |
| CN104676738A (en) * | 2013-11-26 | 2015-06-03 | 哈尔滨恒誉名翔科技有限公司 | Water heating working condition monitoring system |
| CN103759330A (en) * | 2014-01-21 | 2014-04-30 | 山东鲁润热能科技有限公司 | Heat exchanging station intelligent network control system |
| CN103759330B (en) * | 2014-01-21 | 2016-04-06 | 山东鲁润热能科技有限公司 | Heat exchange station Intelligent Network Control System |
| CN103925641A (en) * | 2014-04-28 | 2014-07-16 | 中国石油大学(华东) | Heat supply pipe network hydraulic balance automatic adjustment method |
| CN103925641B (en) * | 2014-04-28 | 2018-03-23 | 中国石油大学(华东) | A kind of heating network hydraulic equilibrium Automatic adjustment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |