CN202392890U - Distributed balance control system of secondary heating pipe network - Google Patents
Distributed balance control system of secondary heating pipe network Download PDFInfo
- Publication number
- CN202392890U CN202392890U CN2011205493172U CN201120549317U CN202392890U CN 202392890 U CN202392890 U CN 202392890U CN 2011205493172 U CN2011205493172 U CN 2011205493172U CN 201120549317 U CN201120549317 U CN 201120549317U CN 202392890 U CN202392890 U CN 202392890U
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Abstract
The utility model discloses a distributed balance control system of a secondary heating pipe network which comprises a heating header pipe, a reflux header pipe, heating branch pipes and reflux branch pipes. The heating header pipe and the reflux header pipe are connected with a heat exchanging station, and the heating branch pipes and the reflux branch pipes are connected with a pipe network of each building. The distributed balance control system of the secondary heating pipe network is characterized in that a variable-frequency pump, an electric adjusting valve, a header pipe flowmeter, a first pressure transmitter and a second pressure transmitter are arranged at a front end of the system, and a balance adjusting valve, a branch pipe flowmeter, a third pressure transmitter and a fourth pressure transmitter are arranged at a tail end of the system. The distributed balance control system of the secondary heating pipe network has the advantages that differential pressure and flow of the pipe network of each building are detected, the differential pressure between an input end and an output end of the pipe network of each building is guaranteed while the differential pressure between the heating header pipe and the reflux header pipe is guaranteed, meanwhile flow balance among the heating header pipe and a plurality of heating branch pipes is detected, so that the secondary pipe network can work stably, pipelines are prevented from pressure fluctuation and vibration, service lives of the pipelines are prolonged, and heating efficiency is improved.
Description
Technical field
The utility model relates to a kind of heating system, specifically, is the distributed balance control system of a kind of heat supply secondary pipe network.
Background technology
In colder area, be provided with heating system in the buildings such as residenter house, classroom and office building.Chinese patent CN2816635 just discloses a kind of Boiler Energy-conserving Boiler System; Distribution and operation principle to heating network have been done detailed introduction; Adopt temperature sensor and intelligent controller that each user's heating time is controlled simultaneously, reach purpose of energy saving.
And in order to realize the Balance Control of pipeline, the someone has proposed front end differential pressure control technology, promptly at the front end of secondary pipe network, controls house steward's flow velocity through the pressure reduction that detects between secondary pipe network heat supply house steward and the return header, thereby realizes the pipe interior flow equilibrium.Also the someone has proposed least favorable terminal differential pressure control technology, is test point with a poorest building pipe network promptly, makes the pressure reduction of a poorest building pipe network meet the demands through the flow velocity of regulating the heat supply house steward, thereby realizes the pipe interior flow equilibrium.
But, in the existing various heating systems, adopt control of front end differential pressure or the control of least favorable differential pressure no matter be; The pipe network Balance Control is desirable not enough; Under the situation that part end points pressure reduction satisfies, the flow of heat supply house steward's flow and many heat supply arms does not have complete equipilibrium, in some pipeline, produces pressure oscillation even causes pipe vibration; Not only the user is caused harmful effect, and shortened the service life of pipeline.
The utility model content
Deficiency to prior art; The purpose of the utility model provides the distributed balance control system of a kind of heat supply secondary pipe network; Pressure reduction and the pressure reduction between each heat supply arm that this system can make the heat supply house steward is balance each other, thereby avoids pipe vibration, improves user's satisfaction.
To achieve these goals, the scheme that the utility model adopted is:
The distributed balance control system of a kind of heat supply secondary pipe network; Be arranged between heat exchange station and the building pipe network; Comprise the heat supply house steward who links to each other with heat exchange station water supply end; The return header that links to each other with heat exchange station backwater end, heat supply arm that links to each other with each building pipe network input and the backflow arm that links to each other with each building pipe network output, said heat exchange station supply water and hold hot water/hot gas of exporting to send in each building pipe network through heat supply house steward and heat supply arm; The cold water that each building pipe network flows out/cold air process backflow arm and return header are sent the backwater end of said heat exchange station back to, and its key is:
Said heat supply house steward is provided with variable frequency pump, electric control valve, total flowmeter for pipe and first pressure transmitter; Said return header is provided with second pressure transmitter; The heat supply arm of each building pipe network is provided with balance adjustment valve, flowmeter for pipe and the 3rd pressure transmitter, on the backflow arm of each building pipe network, also is provided with the 4th pressure transmitter.
Because the input and the output of a pipe network are provided with pressure transmitter in each building, can keep the pressure balance between a building pipe network input and the output through the balance adjustment valve on the building pipe network heat supply arm.On heat supply house steward and return header, also be provided with pressure transmitter, can keep the pressure balance between heat supply house steward and the return header through the variable frequency pump on the heat supply house steward.Through each flowmeter for pipe and the required total flow that provides of heat supply house steward, can judge pipeline whether occur leak, can judge the valve change amount of electric control valve through the valve change amount of balance adjustment valve, guarantee the flow equilibrium in the secondary pipe network.Through each building pipe network is carried out distributed control, make the flow of secondary pipe network and the state that pressure reduction all can reach dynamic equilibrium, avoid pipeline to produce the pressure oscillation phenomenon, improve heating efficiency.
As further describing, a said building pipe network is the heating network in heating network or several buildings of the heating network of an entire building, a Lou Dong unit.
The remarkable result of the utility model is: pressure reduction and flow to each building pipe network all detect, and through distributed control, have both guaranteed the pressure reduction between each building pipe network input and the output; Guarantee the pressure reduction between heat supply house steward and the return header again; Can monitor simultaneously the flow balance whether between heat supply house steward and many heat supply arms, make secondary pipe network stable, avoid pipeline pressure oscillation and oscillation phenomenon to occur; Improve pipeline service life, improve heating efficiency.
Description of drawings
Fig. 1 is the systematic schematic diagram of the utility model.
Reference numeral:
1 thermal source factory, 2 heat exchange stations, 3 variable frequency pumps, 4 electric control valves, 5 total flowmeter for pipe, 6 first pressure transmitters, 7 second pressure transmitters, 8 balance adjustment valves, 9 flowmeter for pipe, 10 the 3rd pressure transmitters, the 11st a buildings pipe network, 12 the 4th pressure transmitters.
The specific embodiment
Below will be with reference to accompanying drawing, the specific embodiment of the utility model is carried out detailed description.
As shown in Figure 1; The distributed balance control system of a kind of heat supply secondary pipe network; Be arranged between heat exchange station 2 and the building pipe network 11; Comprise the heat supply house steward who links to each other with heat exchange station 2 water supply ends, the return header that links to each other with heat exchange station 2 backwater ends, heat supply arm that links to each other with each a building pipe network 11 inputs and the backflow arm that links to each other with each a building pipe network 11 outputs; Said heat exchange station 2 supplies water and holds hot water/hot gas of exporting to send in each building pipe network 11 through heat supply house steward and heat supply arm, and cold water/cold air that each building pipe network 11 flows out is sent the backwater end of said heat exchange station 2 back to through backflow arm and return header.
In implementation process, heat exchange station 2 is connected with thermal source factory 1 through a pipe network, and thermal source factory 1 can be iron and steel processing factory, power plant or special heat supply factory, is used to provide thermal source, and realizes heat exchange at heat exchange station 2 places.Be connected through secondary pipe network between heat exchange station 2 and each building pipe network 11, a building pipe network 11 can be the heating network of the heating network of an entire building, a Lou Dong unit or the heating network of a floor.In the present embodiment; We with the heating network of an entire building as a building pipe network; For the heat supply house steward and the return header of heat exchange station 2, with the input in whole building and output divide although heat supply arm and backflow arm, the pipe network in the building between each user repeats no more.
In order to realize the distributed Balance Control of secondary pipe network; Said heat supply house steward is provided with variable frequency pump 3, electric control valve 4, total flowmeter for pipe 5 and first pressure transmitter 6; Said return header is provided with second pressure transmitter 7; The heat supply arm of each building pipe network 11 is provided with balance adjustment valve 8, flowmeter for pipe 9 and the 3rd pressure transmitter 10, on the backflow arm of each building pipe network 11, also is provided with the 4th pressure transmitter 12.
In order to realize automatic control; Said electric control valve 4 is electrically-controlled valve with balance control valve 8; Prop up flowmeter for pipe 9 and also adopt intelligence behaviour table system with total flowmeter for pipe 5; Flow to hot water/hot gas carries out intelligent monitoring, and the flow that each building pipe network 11 is detected can also pass through wireless transmission, can realize the automatic control of various instruments through single-chip microcomputer or microcontroller are set.
The operation principle of the utility model is:
Because the input and the output of a pipe network are provided with pressure transmitter in each building, can keep the pressure balance between a building pipe network input and the output through the balance adjustment valve 8 on the building pipe network heat supply arm.On heat supply house steward and return header, also be provided with pressure transmitter, can keep the pressure balance between heat supply house steward and the return header through the variable frequency pump on the heat supply house steward.Can calculate the required total flow that provides of heat supply house steward through each flowmeter for pipe 9, thereby judge the flow balance whether in the secondary pipe network, confirm whether pipeline leaks.Through each building pipe network is carried out distributed control, make the flow of secondary pipe network and the state that pressure reduction all can reach dynamic equilibrium, avoid the generation of pipeline pressure fluctuation and oscillation phenomenon, the raising heating efficiency.
Claims (2)
1. distributed balance control system of heat supply secondary pipe network; Be arranged between a heat exchange station (2) and the building pipe network (11); Comprise the heat supply house steward who links to each other with heat exchange station (2) water supply end; The return header that links to each other with heat exchange station (2) backwater end, heat supply arm that links to each other with each building pipe network (11) input and the backflow arm that links to each other with each building pipe network (11) output, said heat exchange station (2) supply water and hold hot water/hot gas of exporting to send in each building pipe network (11) through heat supply house steward and heat supply arm; The cold water that each building pipe network (11) flows out/cold air process backflow arm and return header are sent the backwater end of said heat exchange station (2) back to, it is characterized in that:
Said heat supply house steward is provided with variable frequency pump (3), electric control valve (4), total flowmeter for pipe (5) and first pressure transmitter (6); Said return header is provided with second pressure transmitter (7); The heat supply arm of each building pipe network (11) is provided with balance adjustment valve (8), flowmeter for pipe (9) and the 3rd pressure transmitter (10), on the backflow arm of each building pipe network (11), also is provided with the 4th pressure transmitter (12).
2. the distributed balance control system of a kind of heat supply secondary pipe network according to claim 1 is characterized in that: a said building pipe network (11) is the heating network of the heating network of an entire building, a Lou Dong unit or the heating network in several buildings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205493172U CN202392890U (en) | 2011-12-23 | 2011-12-23 | Distributed balance control system of secondary heating pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205493172U CN202392890U (en) | 2011-12-23 | 2011-12-23 | Distributed balance control system of secondary heating pipe network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392890U true CN202392890U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205493172U Expired - Lifetime CN202392890U (en) | 2011-12-23 | 2011-12-23 | Distributed balance control system of secondary heating pipe network |
Country Status (1)
| Country | Link |
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| CN (1) | CN202392890U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115395A (en) * | 2013-03-01 | 2013-05-22 | 卓旦春 | Heating and ventilation system and flow regulation method therefor |
| CN104613537A (en) * | 2014-07-11 | 2015-05-13 | 新疆西部热力集团有限公司 | Building distributed-type heat supplying system |
| CN106403003A (en) * | 2016-06-20 | 2017-02-15 | 王学津 | Hydraulic equilibrium auxiliary adjustment system and method for secondary network of heat exchange station |
| CN113405142A (en) * | 2021-07-09 | 2021-09-17 | 山东兰格尔节能科技有限公司 | Heat supply two-network balancing method |
-
2011
- 2011-12-23 CN CN2011205493172U patent/CN202392890U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115395A (en) * | 2013-03-01 | 2013-05-22 | 卓旦春 | Heating and ventilation system and flow regulation method therefor |
| CN103115395B (en) * | 2013-03-01 | 2016-03-02 | 卓旦春 | A kind of HVAC system and flow adjustment method thereof |
| CN104613537A (en) * | 2014-07-11 | 2015-05-13 | 新疆西部热力集团有限公司 | Building distributed-type heat supplying system |
| CN106403003A (en) * | 2016-06-20 | 2017-02-15 | 王学津 | Hydraulic equilibrium auxiliary adjustment system and method for secondary network of heat exchange station |
| CN113405142A (en) * | 2021-07-09 | 2021-09-17 | 山东兰格尔节能科技有限公司 | Heat supply two-network balancing method |
| CN113405142B (en) * | 2021-07-09 | 2022-09-23 | 山东兰格尔节能科技有限公司 | Heat supply two-network balancing method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |