CN212869939U - Intelligent heat supply network governing system - Google Patents
Intelligent heat supply network governing system Download PDFInfo
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- CN212869939U CN212869939U CN202021738897.5U CN202021738897U CN212869939U CN 212869939 U CN212869939 U CN 212869939U CN 202021738897 U CN202021738897 U CN 202021738897U CN 212869939 U CN212869939 U CN 212869939U
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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
Abstract
The utility model discloses an intelligent heat supply network governing system belongs to the automatic technical field of heat supply. A regulating valve in front of the heat exchange station is arranged on a water supply pipeline between the heat source station and the heat exchange station, a variable frequency pump in front of the heat exchange station and a pressure measuring point in front of the heat exchange station are arranged on the water supply pipeline between the heat exchange station and the building, and a temperature measuring point of a water return pipe is arranged on the water return pipeline between the heat exchange station and the building; building front variable frequency pumps and building front pressure measuring points are arranged at inlet pipelines of each building; the flow balance valve is arranged at the entrance of the house-entering pipeline of each heat user in the building, and the heat user temperature measuring point is arranged in the house of each heat user. The system can adjust the temperature in real time according to the actual demand of a heat user in the heat supply network, so that heat is comfortable and suitable as required, the comfort level of the user is improved, the energy efficiency maximization of a heat supply system is realized, and the energy is saved.
Description
Technical Field
The utility model belongs to the technical field of the heat supply is automatic, concretely relates to intelligent heat supply network governing system.
Background
The heating problem is an important social problem, and the vital interests and social stability of the public are good. With the progress of society, the living standard of people is continuously improved, and the comfort level of people to the indoor thermal environment is required to be higher and higher. In northern Europe, each room can be controlled by an independent control device, heating and cooling are the same, and the whole system is controlled by the tail end in a self-adaptive process. However, distributed heating is adopted at present, heat users report heat utilization requirements in a centralized mode, then allocation is carried out by combining outdoor weather conditions, each heating station controls temperature and heat balance, the control mode is a top-down control mode, and the information received by a heating information network has a hysteresis phenomenon. To realize people oriented, the mode of adjusting through people's end, all the processes that adapt to, the heat supply pipe network system should be "information transparent intelligent pipe network" in city central heating, and current primary pipe network and secondary pipe network have two major defects in the aspect of intelligent monitoring: 1) monitoring points of a heat supply network are almost blank, monitoring points of a plurality of heating power stations are not complete, for example, monitoring points of devices such as a flowmeter, an intelligent regulating valve, a plate heat exchanger and a dirt separator are not available, and in addition, indoor temperature monitoring points are also lacking on the existing typical user side; 2) analysis of the monitored data is seriously insufficient, so that the indoor temperature of a user is unstable, and the user experiences are poor due to partial high, partial low and time-high low.
Disclosure of Invention
In order to solve the defect that exists among the above-mentioned prior art, the utility model aims to provide an intelligent heat supply network governing system can adjust the temperature in real time according to heat supply network in user's actual demand, improves user's comfort level, has practiced thrift the energy.
The utility model discloses a following technical scheme realizes:
the utility model discloses an intelligent heat supply network adjusting system, which comprises an adjusting valve, a frequency conversion pump before a heat exchange station, a pressure measuring point before the heat exchange station, a frequency conversion pump before a building, a pressure measuring point before the building, a flow balance valve, a heat consumer temperature measuring point, a return water pipe temperature measuring point and a control system;
a regulating valve in front of the heat exchange station is arranged on a water supply pipeline between the heat source station and the heat exchange station, a variable frequency pump in front of the heat exchange station and a pressure measuring point in front of the heat exchange station are arranged on the water supply pipeline between the heat exchange station and the building, and a temperature measuring point of a water return pipe is arranged on the water return pipeline between the heat exchange station and the building; building front variable frequency pumps and building front pressure measuring points are arranged at inlet pipelines of each building; the flow balance valve is arranged at the entrance of an entrance pipeline of each heat user in the building, and the heat user temperature measuring point is arranged in each heat user;
and the heat exchange station front regulating valve, the heat exchange station front variable frequency pump, the heat exchange station front pressure measuring point, the building front variable frequency pump, the building front pressure measuring point, the flow balance valve, the hot user temperature measuring point and the water return pipe temperature measuring point are respectively connected with the control system.
Preferably, the flow balancing valve is RD-20 NB.
Preferably, the flow balance valve comprises an intelligent controller and a return water temperature probe, the return water temperature probe is arranged in the return water pipe, and the return water temperature probe is connected with the intelligent controller.
Preferably, the heat exchange station front regulating valve, the heat exchange station front variable frequency pump, the heat exchange station front pressure measuring point, the building front variable frequency pump, the building front pressure measuring point, the flow balance valve, the heat user temperature measuring point and the water return pipe temperature measuring point are respectively connected with the control system through remote networking.
Preferably, the thermal user temperature measuring point is located in each thermal user room at a position remote from the window and the heating apparatus.
Further preferably, the distances between the hot user temperature measuring point and the window and the heating device are both more than or equal to 1.5 m.
Preferably, each hot user is also provided with a humidity measuring point indoors, and the humidity measuring point is connected with the control system.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses an intelligent heat supply network governing system, through increasing hot user temperature measurement station and flow balance valve in every hot user department, set for required heat supply temperature after, utilize the indoor real-time temperature of every hot user of hot user temperature measurement station feedback, control flow balance valve changes the heat supply water flow when needing to adjust, adjusts indoor temperature. The control to the user is accurate, and the flow balance of the heat supply terminal is really realized; the opening control is changed into real flow regulation, and the regulation precision is high; the flow balance valve in each house can be independently adjusted according to the feedback information of the temperature measuring point of the heat consumer, and is more intelligent. Meanwhile, a pressure measuring point in front of the heat exchange station and a frequency conversion pump in front of the heat exchange station in the system ensure the pressure in front of the heat exchange station to be stable; the variable frequency pump before the building and the pressure measuring point before the building guarantee the pressure stability before the building. In different heating stages, the system basically keeps the water supply flow unchanged, adjusts the steam flow from the heat source station according to the curve given by the heat load prediction, and changes the return water temperature, thereby meeting the load change in a certain stage. The system can adjust the temperature in real time according to the actual demand of a heat user in the heat supply network, so that heat is comfortable and suitable as required, the comfort level of the user is improved, the energy efficiency maximization of a heat supply system is realized, and the energy is saved.
Further, the flow balance valve adopts RD-20NB,
furthermore, the flow balance valve comprises an intelligent controller and a return water temperature probe, the return water temperature probe is arranged in the return water pipe and can set a target return water temperature, and the opening degree of the valve is adjusted in real time according to the measured return water temperature and approaches to a set return water temperature value.
Furthermore, each valve, each pump and each temperature measuring point are connected with the control system through remote networking, and the communication is efficient, stable and reliable.
Furthermore, the measuring point of the temperature of the hot user is arranged at a position far away from the window and the heating device in each hot user, so that the excessive influence of cold air and a heat affected zone can be reduced, and the real indoor influence can be reflected.
Furthermore, the distances between the hot user temperature measuring point and the window and the heating device are more than or equal to 1.5m, and the distances can effectively avoid the excessive influence of cold air and a heat affected zone.
Furthermore, each hot user is also provided with a humidity measuring point indoors, the humidity measuring points are connected with a control system, indoor humidity can be reduced by simply increasing indoor temperature, dry air can make people uncomfortable, parameters are evaluated simultaneously with humidity, indoor humidity can be reduced by simply increasing indoor temperature, dry air can make people uncomfortable, user comfort is further improved, and system energy efficiency is improved.
Drawings
Fig. 1 is the overall structure schematic diagram of the intelligent heat supply network regulating system of the present invention.
In the figure: 1-heat source station, 2-heat exchange station, 3-building, 4-regulating valve, 5-heat exchange station front frequency conversion pump, 6-heat exchange station front pressure measuring point, 7-building front frequency conversion pump, 8-building front pressure measuring point, 9-flow balance valve, 10-heat user temperature measuring point and 11-water return pipe temperature measuring point.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific examples, which are intended to illustrate and not to limit the invention:
as shown in fig. 1, the utility model discloses an intelligent heat supply network regulating system, including governing valve 4, heat exchange station preceding inverter pump 5, heat exchange station preceding pressure measurement station 6, building preceding inverter pump 7, building preceding pressure measurement station 8, flow balance valve 9, heat consumer temperature measurement station 10, wet return temperature measurement station 11 and control system;
a heat exchange station front regulating valve 4 is arranged on a water supply pipeline between the heat source station 1 and the heat exchange station 2, a heat exchange station front variable frequency pump 5 and a heat exchange station front pressure measuring point 6 are arranged on the water supply pipeline between the heat exchange station 2 and the building 3, and a water return pipe temperature measuring point 11 is arranged on a water return pipeline between the heat exchange station 2 and the building 3; a building front variable frequency pump 7 and a building front pressure measuring point 8 are arranged at an inlet pipeline of each building 3; the flow balance valve 9 is arranged at the entrance of an entrance pipeline of each hot user in the building 3, and the hot user temperature measuring point 10 is arranged in each hot user; the thermal user temperature measuring point 10 is arranged at a position far away from the window and the heating device in each thermal user room, generally, the distances between the thermal user temperature measuring point 10 and the window and the heating device are both more than or equal to 1.5m, and the influence caused by supercooling and overheating is reduced to the maximum extent so as to reflect the real indoor environment temperature. And a humidity measuring point is also arranged indoors of each hot user and is connected with the control system.
A heat exchange station front regulating valve 4, a heat exchange station front variable frequency pump 5, a heat exchange station front pressure measuring point 6, a building front variable frequency pump 7, a building front pressure measuring point 8, a flow balance valve 9, a heat user temperature measuring point 10 and a water return pipe temperature measuring point 11 are respectively connected with a control system; preferably, the remote networking and control system are connected, so that the remote automation is realized. The control system is arranged in a heat supply control center.
The flow balance valve 9 is an intelligent electronic flow balance valve, the valve body is made of 304 stainless steel, the electric adjusting mechanism can accurately adjust the flow, the intelligent controller, the Modbus remote transmission interface, the driving motor, the return water temperature probe and the like are arranged on the valve body, the return water temperature probe is arranged in the return water pipe, and the return water temperature probe is connected with the intelligent controller. The valve can realize 1. accurate control to the user: really realize the flow balance of heat supply terminal, 2. the regulation to flow is accurate: the variable opening degree control is real flow regulation, 3, intellectualization: each valve is dynamically adjusted according to the detected heat supply quality, 4. networking: the state of each valve is visible, adjustable and controllable in a remote mode. The following modes can be used: 1. setting an opening degree mode: keeping the fixed opening unchanged; 2. setting a return water temperature mode: after the target return water temperature is set, the opening of the valve is adjusted in real time according to the measured return water temperature, and approaches to the set return water temperature value; 3. forced on and off modes. The flow balance valve 9 may be of RD-20 NB.
The utility model discloses an intelligent heat supply network governing system during operation:
the regulating valve 4 in front of the heat source station 1 regulates the return water temperature of the heat exchange station 1 to be constant by changing the flow. Based on economic operating considerations, adjustments to the heat source may be made using mass-to-mass, i.e., mass adjustments that vary the flow in stages. The whole heating period is divided into a plurality of stages (such as an initial heating stage, a middle-cold front stage, a high-cold stage, a middle-cold rear stage, a final heating stage and the like) according to the outdoor temperature, the water supply flow is basically kept unchanged in each stage, the steam flow is adjusted according to a curve given by intelligent heat load prediction, and the return water temperature is changed so as to meet the load change in a certain stage.
Before the control system performs control, the heat load prediction is performed, and the control instruction is corrected to a certain extent, so that the heat demand of a user can be ensured, and the benefit of a heat supply unit can be ensured. And the accurate prediction of the geothermal load is carried out, so that the basic matching of the heat supply quantity of the heat source and the heat demand quantity of the heat supply network can be realized, and the energy efficiency maximization of the heat supply system is realized. The heat is comfortable and suitable as required, and the energy efficiency of a heating system is improved.
It should be noted that the above description is only a part of the embodiments of the present invention, and equivalent changes made by the system described in the present invention are all included in the protection scope of the present invention. The technical field of the present invention can be replaced by other embodiments described in a similar manner, without departing from the structure of the present invention or exceeding the scope defined by the claims, which belong to the protection scope of the present invention.
Claims (7)
1. An intelligent heat supply network adjusting system is characterized by comprising an adjusting valve (4), a heat exchange station front variable frequency pump (5), a heat exchange station front pressure measuring point (6), a building front variable frequency pump (7), a building front pressure measuring point (8), a flow balance valve (9), a heat user temperature measuring point (10), a water return pipe temperature measuring point (11) and a control system;
a heat exchange station front regulating valve (4) is arranged on a water supply pipeline between a heat source station (1) and a heat exchange station (2), a heat exchange station front variable frequency pump (5) and a heat exchange station front pressure measuring point (6) are arranged on the water supply pipeline between the heat exchange station (2) and a building (3), and a water return pipe temperature measuring point (11) is arranged on a water return pipeline between the heat exchange station (2) and the building (3); a building front variable frequency pump (7) and a building front pressure measuring point (8) are arranged at an inlet pipeline of each building (3); the flow balance valve (9) is arranged at the entrance of an entrance pipeline of each heat user in the building (3), and the heat user temperature measuring point (10) is arranged indoors of each heat user;
and a heat exchange station front adjusting valve (4), a heat exchange station front variable frequency pump (5), a heat exchange station front pressure measuring point (6), a building front variable frequency pump (7), a building front pressure measuring point (8), a flow balance valve (9), a heat user temperature measuring point (10) and a water return pipe temperature measuring point (11) are respectively connected with a control system.
2. The intelligent heat network regulation system of claim 1, wherein the flow balancing valve (9) is RD-20 NB.
3. The intelligent heat supply network regulating system according to claim 1, wherein the flow balance valve (9) comprises an intelligent controller and a return water temperature probe, the return water temperature probe is arranged in a return water pipe, and the return water temperature probe is connected with the intelligent controller.
4. The intelligent heat supply network adjusting system according to claim 1, wherein the heat exchange station front adjusting valve (4), the heat exchange station front variable frequency pump (5), the heat exchange station front pressure measuring point (6), the building front variable frequency pump (7), the building front pressure measuring point (8), the flow balance valve (9), the heat consumer temperature measuring point (10) and the water return pipe temperature measuring point (11) are respectively connected with the control system through remote networking.
5. The intelligent heat network regulation system of claim 1, wherein the thermal user temperature measurement point (10) is located in each thermal user premises remote from the window and the heating device.
6. Intelligent heat network regulation system according to claim 5, characterized in that the distance between the hot user temperature measuring point (10) and the window and the heating device is equal to or more than 1.5 m.
7. The intelligent heat supply network regulating system of claim 1, wherein each heat consumer is further provided with a humidity measuring point indoors, and the humidity measuring point is connected with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738897.5U CN212869939U (en) | 2020-08-19 | 2020-08-19 | Intelligent heat supply network governing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021738897.5U CN212869939U (en) | 2020-08-19 | 2020-08-19 | Intelligent heat supply network governing system |
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| CN212869939U true CN212869939U (en) | 2021-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059959A (en) * | 2022-06-21 | 2022-09-16 | 西安热工研究院有限公司 | Building heat supply system based on heat supply network dynamic operation characteristic adjustment and operation method thereof |
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2020
- 2020-08-19 CN CN202021738897.5U patent/CN212869939U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059959A (en) * | 2022-06-21 | 2022-09-16 | 西安热工研究院有限公司 | Building heat supply system based on heat supply network dynamic operation characteristic adjustment and operation method thereof |
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