CN212719955U - Two-network regulation and control system based on NB-IOT flow control valve - Google Patents
Two-network regulation and control system based on NB-IOT flow control valve Download PDFInfo
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- CN212719955U CN212719955U CN202020782206.5U CN202020782206U CN212719955U CN 212719955 U CN212719955 U CN 212719955U CN 202020782206 U CN202020782206 U CN 202020782206U CN 212719955 U CN212719955 U CN 212719955U
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Abstract
The utility model provides a two-network regulation and control system based on NB-IOT flow control valve, which is used in a second-level pipe network of building heating, and comprises a data acquisition device, an execution device, an intelligent building controller, a second-level pipe network water supply pipeline and a second-level pipe network water return pipeline; the data acquisition equipment acquires the temperature, the pressure and the like of the heat supply pipeline and transmits the temperature, the pressure and the like to the intelligent building controller, and the intelligent building controller receives data transmission or receives and forwards instructions to regulate and control the action of the execution equipment. An NB-IOT flow control valve is arranged on a branch pipeline between a water supply pipeline of the secondary pipe network and each household; and branch pipelines between the secondary pipe network return pipeline and each household are provided with household return water temperature sensors. The utility model discloses a two net regulation and control systems based on NB-IOT flow control valve constitutes through data acquisition and the flow control of improvement system, provides good system configuration scheme for the regulation and control of heating flow to do benefit to the energy-conservation of heating usefulness and fall.
Description
Technical Field
The utility model relates to a heating installation regulation and control technical field, in particular to two net regulation and control systems based on NB-IOT flow control valve.
Background
In the existing heating system, the heating of the heater cannot be managed in a time-sharing and zone-dividing manner, so that the heat energy is greatly wasted; the heating is unbalanced and uneven, so that the room temperature of the building close to the heating station is high, and the room temperature of the building far away from the heating station is low; meanwhile, various detection data acquisition equipment and execution equipment are arranged, and long-distance circuit arrangement is needed.
Among them, in various balance control and energy-saving control of the secondary pipe network of the heat supply network, the most common method is to manually set the upper limit of the flow of the secondary pipe network by using a balance valve, a flow limiter and the like, and basically, the flow of a front-end user is squeezed to a tail-end user only for several times in each heating season, under the condition that the flow of the secondary pipe network is fixed, thereby realizing the balance of the pipe network. How to reasonably arrange control valves, temperature pressure and other detection equipment in the existing heating and heat supply pipe network, particularly in a secondary pipe network, so as to more accurately regulate and control the heating flow of each heating user in a building, realize reasonable heating control and reduce the waste of heat energy, and is the subject of continuous research and improvement in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a two net regulation and control system based on NB-IOT flow control valve, under keeping heating user's heating demand, improve the data acquisition and the flow regulation and control constitution of system, provide good system configuration scheme for the regulation and control of heating flow to do benefit to the energy-conservation of heating usefulness.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a two-network regulation and control system based on NB-IOT flow control valves is used in a second-level pipe network of building heating and comprises data acquisition equipment, execution equipment, an intelligent building controller, a second-level pipe network water supply pipeline led into each household by a main supply pipeline, and a second-level pipe network water return pipeline led back to a main return pipeline by each household;
the intelligent building controller can generate and send or receive and forward instructions to regulate and control the action of the execution equipment based on received data processing so as to form flow regulation on the heat supply pipeline;
the execution equipment comprises NB-IOT flow control valves arranged on branch pipelines between the secondary pipe network water supply pipeline and each household; the data acquisition equipment comprises a household backwater temperature sensor which is arranged on the secondary pipe network backwater pipeline and a branch pipeline between each household.
Furthermore, the data acquisition equipment also comprises a secondary pipe network water supply pressure sensor and a secondary pipe network water supply temperature sensor which are arranged on the secondary pipe network water supply pipeline, and a secondary pipe network backwater temperature sensor and a secondary pipe network backwater pressure sensor which are arranged on the secondary pipe network backwater pipeline.
Furthermore, the data acquisition equipment also comprises an outdoor temperature sensor for detecting the external temperature of the building.
Furthermore, a pressure pump is arranged between each branch pipeline of the secondary pipe network water supply pipeline and the main supply pipeline.
Furthermore, an overflow valve is arranged in parallel between the secondary pipe network water supply pipeline and the secondary pipe network water return pipeline and opposite to the heating pipelines of each household.
Furthermore, the data acquisition equipment also comprises a household flow meter arranged on a branch pipeline between the secondary pipe network water supply pipeline and each household, and an indoor temperature sensor arranged in each household.
Furthermore, the two-network regulation and control system based on the NB-IOT flow control valve further comprises a cloud platform which can be in communication connection with the intelligent building controller through wireless WIFI, 4G or NB-IoT.
Further, the data acquisition equipment and the execution equipment are in communication connection with the intelligent building controller through an NB-IoT network.
Furthermore, the NB-IOT flow control valve adopts an NB-IOT regulating valve which can locally collect temperature and flow detection signals.
Compared with the prior art, the utility model discloses following advantage has:
(1) two net regulation and control systems based on NB-IOT flow control valve, set up branch family return water temperature sensor on the lateral pipeline of second grade pipe network return water pipeline, set up NB-IOT flow control valve on the lateral pipeline of second grade pipe network supply channel, the scene adopts intelligent building controller and NB-IOT flow control valve to carry out automatically regulated to the terminal return water temperature of building, thereby each family's of rational distribution heating flow, realize end user's thermodynamic balance, make indoor temperature's regulation and control more accurate, thereby regulation and control for heating flow provides good system setting scheme, in order to do benefit to the festival of heating energy and fall.
(2) The temperature and pressure detection of the water supply pipeline and the water return pipeline of the secondary pipe network can enable the heating pipe network system to master the heat consumption condition and the demand of the secondary pipe network in time, and the overall pipe network allocation is facilitated.
(3) The outdoor temperature sensor is beneficial to adjusting the control strategy of the NB-IOT flow control valve in time according to the external environment condition, and is beneficial to maintaining the regulation and control performance of the system.
(4) The configuration of the booster pump can provide stable support for the pressure and the flow of the secondary pipe network, and the heat supply of the secondary pipe network is guaranteed.
(5) The overflow valve can form backflow when the heat pipeline for the secondary pipe network is closed or blocked, so that the overall overpressure of the secondary pipe network is prevented, and the pipe network is prevented from bursting and leaking.
(6) The branch pipelines are additionally provided with the household flow meters, and the indoor temperature sensors are installed indoors, so that data are provided for more accurately regulating and controlling the heating of users, and the heat consumption condition of each user can be accurately tested.
(7) The cloud platform is adopted to realize remote monitoring of the system and provide good basic conditions for use and check of the user side.
(8) Each data acquisition device and each execution device are in communication connection with the intelligent building controller through the NB-IoT network, so that the arrangement of communication lines can be saved, and the electrical construction amount of the system is greatly reduced.
(9) By adopting the NB-IOT (network b-operated IoT) regulating valve capable of locally acquiring temperature and flow detection signals, the data of the household flow meter and the household backwater temperature sensor can be acquired nearby, local control is realized on the NB-IOT flow control valve, and the data of the household flow meter and the household backwater temperature sensor can be transmitted to the intelligent building controller by virtue of the remote communication function of the NB-IOT flow control valve, so that the NB-IoT communication function of the household flow meter and the household backwater temperature sensor can be avoided.
Drawings
The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:
fig. 1 is a schematic view of a communication connection relationship of a two-network regulation and control system based on an NB-IOT flow control valve according to an embodiment of the present invention;
fig. 2 is a schematic system configuration diagram of a two-network regulation and control system based on an NB-IOT flow control valve according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a connection configuration of the NB-IOT flow control valve according to the embodiment of the present invention for locally collecting temperature and flow detection signals and transmitting the signals to the intelligent building controller;
description of reference numerals:
101-a main supply pipeline, 102-a main return pipeline, 2-a second-level pipe network water supply pipeline, 201-a switch valve, 202-a pressure pump, 203-a second-level pipe network water supply pressure sensor, 204-a second-level pipe network water supply temperature sensor, 205-an overflow valve, 3-a second-level pipe network water return pipeline, 301-a second-level pipe network water return temperature sensor, 302-a second-level pipe network water return pressure sensor, 4-NB-IOT flow control valve, 5-household flow meter, 6-an indoor temperature sensor, 7-household water return temperature sensor, 8-an intelligent building controller and 801-an outdoor temperature sensor.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The embodiment relates to a two-network regulation and control system based on an NB-IOT flow control valve, which can improve the data acquisition and flow regulation and control constitution of the system under the condition of keeping the heating requirement of a heating user, and provides a good system setting scheme for the regulation and control of heating flow so as to be beneficial to the energy conservation of heating. The two-network regulation and control system based on the NB-IOT flow control valve is used in a second-level pipe network of building heating and comprises data acquisition equipment, execution equipment, an intelligent building controller, a second-level pipe network water supply pipeline led into each household by a main supply pipeline, and a second-level pipe network water return pipeline led back to a main return pipeline by each household; the intelligent building controller can generate and send or receive and forward instructions based on received data processing to regulate and control the action of the execution equipment so as to form flow regulation on the heat supply pipeline; the execution equipment comprises NB-IOT flow control valves arranged on branch pipelines between the secondary pipe network water supply pipeline and each household; the data acquisition equipment comprises a household backwater temperature sensor which is arranged on the secondary pipe network backwater pipeline and a branch pipeline between each household.
Based on the above general structural principles, the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. An exemplary structure of the NB-IOT flow control valve-based two-network regulation and control system of this embodiment is shown in fig. 1 and fig. 2, and mainly includes a data acquisition device, an execution device, an intelligent building controller 8, a two-level pipe network water supply pipeline 2 leading from a main supply pipeline 101 to each household, and a two-level pipe network water return pipeline 3 leading from each household back to a main return pipeline 102.
Wherein, the data acquisition equipment gathers the indoor temperature of external environment and building, the temperature of heat supply pipeline, flow and pressure and transmit to intelligent building controller 8, and intelligent building controller 8 can generate the action of instruction regulation and control actuating equipment based on the data processing who accepts, perhaps uploads cloud end platform with data, accepts the action of the data instruction regulation and control actuating equipment of high in the clouds platform to form the flow control to the heat supply pipeline, thereby improves the heating effect and reduces the energy consumption.
The number and the types of the data acquisition equipment and the execution equipment can be selected and configured according to the monitoring requirement of the heating system. In this embodiment, the execution device includes an NB-IOT flow control valve 4 installed on a branch line between the secondary pipe network water supply line 2 and each household; the data acquisition equipment comprises a household backwater temperature sensor 7 arranged on a branch pipeline between a secondary pipe network backwater pipeline 3 and each household, a secondary pipe network water supply pressure sensor 203 and a secondary pipe network water supply temperature sensor 204 can be arranged on the secondary pipe network water supply pipeline 2, and a secondary pipe network backwater temperature sensor 301 and a secondary pipe network backwater pressure sensor 302 are arranged on the secondary pipe network backwater pipeline 3; the temperature and pressure of the secondary pipe network water supply pipeline 2 and the secondary pipe network water return pipeline 3 are detected, so that the heating pipe network system can master the heat consumption condition and demand of the secondary pipe network in time, and the overall pipe network allocation is facilitated.
In addition, in order to facilitate timely adjustment of the control strategy of the NB-IOT flow control valve 4 according to the external environment conditions and to facilitate maintenance of the system regulation and control performance, an outdoor temperature sensor 801 for detecting the external temperature of the building may be further provided. In order to more accurately regulate and control heating supply data of users and accurately test the heat consumption condition of each user, a branch pipeline is additionally provided with a household flow meter 5, and an indoor temperature sensor 6 is installed in a room of a heating user. Preferably, the household flow meter 5 is installed on a branch pipeline between the water supply pipeline 2 of the secondary pipe network and the user and is positioned at the downstream of the NB-IOT flow control valve 4, so that the change situation of the user heating water flow caused by the action change of the NB-IOT flow control valve 4 can be reflected in time.
The water supply pipeline 2 of the secondary pipe network is branched from the main supply pipeline 101 and led out, and the water return pipeline 3 of the secondary pipe network is led back to the main return pipeline 102. After the secondary pipe network water supply line 2 is led out from the main supply line 101, an on-off valve 201 may be provided to open or close the secondary pipe network system. The switching valve 201 may be a manual or automatic switching valve, and preferably a valve with key lock authority management, which is widely used in heating pipes.
As shown in fig. 2, a pressure pump 202 may be disposed on a pipeline between the on-off valve 201 and the diode network water supply pressure sensor 203, and the pressure pump 202 may be configured to provide stable support for the pressure and flow rate of the secondary network, thereby ensuring the heat supply of the secondary network.
Based on the above system configuration, in this embodiment, an overflow valve 205 is provided between the secondary pipe network water supply pipeline 2 and the secondary pipe network water return pipeline 3 and in parallel with the heating pipelines of each household. The overflow valve 205 is arranged, when the heat pipeline for the secondary pipe network is closed or blocked, backflow can be formed, and the situation that the pipe network is cracked and leaks water due to the overall overpressure of the secondary pipe network is prevented.
It should be pointed out that, the intelligent building controller 8 and the NB-IOT flow control valve 4 are adopted on site to automatically adjust the return water temperature at the tail end of the building user, so that the flow can be reasonably distributed, the thermodynamic balance of the tail end user is realized, and the intelligent building temperature control system has the advantages of timely temperature control effect and overall energy saving. The intelligent building controller 8 of the system can use a conventional controller to set a necessary temperature control threshold value or a control curve according to a heating control strategy so as to form real-time regulation and control on the NB-IOT flow control valve 4 and improve the water quantity entering a user pipeline and the return temperature. The conventional control application of the control as a heating system is not the protection content of the embodiment, and the embodiment is characterized in that a good system configuration basis is provided for the regulation and control of heating through reasonable system configuration, so that the aims of improving the response speed and the regulation and control effect of heating regulation and control are fulfilled. Certainly, the intelligent building controller 8 can also adopt a controller with an NB-IoT communication module or use a gateway controller to realize communication between the system and the cloud platform, and realize communication connection between the intelligent building controller 8 and the cloud platform through a wireless WIFI, 4G or NB-IoT network, thereby forming remote monitoring of the system and providing good basic conditions for use and viewing of a user side.
The intelligent heat supply cloud platform can receive data returned by the intelligent building controller 8 in real time, and comprises the opening of a regulating valve, the temperature of water returned by the building, the pressure, the flow, the heat and the like of the water returned by the building, and can issue a target set value of the temperature of a water return pipeline of the building to the intelligent building controller 8 so as to control the opening of the regulating valve of the building, and switch the control mode of the system and the like at any time. Meanwhile, the cloud platform can send the adjusting parameters in the secondary pipe network building to the heat exchange station main control system, so that the main control system can adjust the running frequency of the circulating pump in time according to the backwater temperature of each building and the opening condition of the adjusting valve, and the secondary pipe network can be guaranteed to run in a good hydraulic working condition all the time. The controller in the heat exchange station and the two-network building controller are in linkage control, and further energy saving optimization can be achieved.
Balance among all users is achieved through adjustment of the NB-IOT flow control valve 4, the cloud platform can directly communicate with the NB-IoT flow control valve through an NB-IoT network, an opening degree instruction is issued to the flow control valve through data analysis according to temperature values sent back by the indoor temperature sensor 6 and the household backwater temperature sensor 7, the flow control valves have a self-balancing function, actions of the flow control valves are not mutually influenced, and heat distribution on demand in real time can be achieved.
The data acquisition equipment and the execution equipment in the system can be preferably in communication connection with the intelligent building controller 8 through an NB-IoT network, so that the arrangement of communication lines can be saved, and the electrical construction amount of the system is greatly reduced. Of course, as shown in fig. 3, the NB-IOT flow control valve 4 may be an NB-IOT internet-of-things regulating valve capable of locally acquiring temperature and flow detection signals, for example, an NB-IOT internet-of-things regulating valve manufactured by tianjin ohlycra instruments and meters ltd. Therefore, the NB-IOT flow control valve 4 can collect the detection data of the household flow meter 5 and the household backwater temperature sensor 7 adjacent to the NB-IOT flow control valve 4, and local control is realized on the NB-IOT flow control valve 4; or, the data of the household flow meter 5 and the household backwater temperature sensor 7 are transmitted to the intelligent building controller 8 by means of the remote communication function of the NB-IOT flow control valve 4, so that the NB-IoT communication function of the household flow meter 5 and the household backwater temperature sensor 7 can be eliminated.
When the two-network regulation and control system based on the NB-IOT flow control valve is used, the climate compensation of the outdoor temperature sensor 801 and the indoor temperature of the indoor temperature sensor 6 can provide a correction function for regulation and control of the NB-IOT flow control valve 4, the opening degree of the valve can be timely adjusted according to real-time change of the outdoor temperature in a heating season, the return water temperature of the household return water temperature sensor 7 is further changed, and accurate control of the indoor temperature can be achieved. Compared with the traditional method for adjusting by setting a safe backwater temperature value according to extreme weather, the method is more reasonable and is a conversion from rough adjustment to fine adjustment.
The threshold value set by the control of the household backwater temperature sensor 7 may be a value adjusted manually, or may be set as a temperature control curve that varies with the temperature of the outdoor temperature sensor 801, the temperature of the indoor temperature sensor 6, or the time change during the day. For example, the demand curve of the indoor temperature can be set according to the life rule of the hot user, for example, no one is at home during the day and the temperature can be set to be lower. The temperature can be set a little higher when the user goes to home at night, so that the energy can be fully utilized, and compared with the traditional method, unnecessary wave cost of the energy can be saved.
The arrangement of the secondary pipe network water supply pressure sensor 203 and the secondary pipe network backwater pressure sensor 302 can monitor the pressure difference condition of the head end and the tail end of the pipe network in time, thus ensuring that the worst pressure difference problem is ignored when the temperature is adjusted. Therefore, different modes of pressurization water supply and valve throttling matching control are selected under different working conditions, the regulation mode is more flexible than the traditional single regulation mode, and meanwhile, the balance of water pressure and the balance regulation of temperature are considered.
By adopting the two-network regulation and control system based on the NB-IOT flow control valve, branch pipelines of a secondary pipe network water return pipeline 3 are provided with household return water temperature sensors 7, branch pipelines of a secondary pipe network water supply pipeline 2 are provided with NB-IOT flow control valves 4, and an intelligent building controller 8 and the NB-IOT flow control valves 4 are adopted on site to automatically regulate the return water temperature at the tail end of a building, so that the heating flow of each household can be reasonably distributed, the thermodynamic balance of the end users is realized, the regulation and control of the indoor temperature are more accurate, a good system setting scheme is provided for the regulation and control of the heating flow, and the energy saving of heating is facilitated.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A two-network regulation and control system based on NB-IOT flow control valves is used in a second-level pipe network of building heating, and comprises data acquisition equipment, execution equipment, an intelligent building controller (8), a second-level pipe network water supply pipeline (2) leading from a main supply pipeline (101) to each household, and a second-level pipe network water return pipeline (3) leading from each household back to a main return pipeline (102);
the data acquisition equipment acquires the temperature, the flow and the pressure of the heat supply pipeline and transmits the temperature, the flow and the pressure to the intelligent building controller (8), and the intelligent building controller (8) can generate and send or receive and forward instructions to regulate and control the action of the execution equipment based on the received data processing so as to form the flow regulation on the heat supply pipeline; the method is characterized in that:
the execution equipment comprises NB-IOT flow control valves (4) which are arranged on branch pipelines between the secondary pipe network water supply pipeline (2) and each household; the data acquisition equipment comprises a household backwater temperature sensor (7) which is arranged on a branch pipeline between the secondary pipe network backwater pipeline (3) and each household.
2. The NB-IOT flow control valve-based two-network regulation and control system according to claim 1, wherein: the data acquisition equipment further comprises a secondary pipe network water supply pressure sensor (203) and a secondary pipe network water supply temperature sensor (204) which are arranged on the secondary pipe network water supply pipeline (2), and a secondary pipe network return water temperature sensor (301) and a secondary pipe network return water pressure sensor (302) which are arranged on the secondary pipe network return water pipeline (3).
3. The NB-IOT flow control valve-based two-network regulation and control system according to claim 2, wherein: the data acquisition equipment further comprises an outdoor temperature sensor (801) for detecting the outside temperature of the building.
4. The NB-IOT flow control valve-based two-network regulation and control system according to claim 1, wherein: and a pressure pump (202) is arranged between each branch pipeline of the secondary pipe network water supply pipeline (2) and the main supply pipeline (101).
5. The NB-IOT flow control valve-based two-network regulation and control system of claim 4, wherein: and an overflow valve (205) is arranged in parallel between the secondary pipe network water supply pipeline (2) and the secondary pipe network water return pipeline (3) and is opposite to the heating pipelines of each household.
6. The NB-IOT flow control valve-based two-network regulation and control system according to any one of claims 1-5, wherein: the data acquisition equipment further comprises a household flow meter (5) arranged on a branch pipeline between the secondary pipe network water supply pipeline (2) and each household, and an indoor temperature sensor (6) arranged in each household.
7. The NB-IOT flow control valve-based two-network regulation and control system of claim 6, wherein: the two-network regulation and control system based on the NB-IOT flow control valve further comprises a cloud platform which can be in communication connection with the intelligent building controller (8) through wireless WIFI, 4G or NB-IoT.
8. The NB-IOT flow control valve-based two-network regulation and control system according to claim 7, wherein: the data acquisition equipment and the execution equipment are in communication connection with the intelligent building controller (8) through an NB-IoT network.
9. The NB-IOT flow control valve-based two-network regulation and control system according to claim 8, wherein: the NB-IOT flow control valve (4) adopts an NB-IOT regulating valve which can locally collect temperature and flow detection signals.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847644A (en) * | 2021-10-19 | 2021-12-28 | 沈阳泰科流体控制有限公司 | Secondary net valve opening control method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847644A (en) * | 2021-10-19 | 2021-12-28 | 沈阳泰科流体控制有限公司 | Secondary net valve opening control method and system |
| CN113847644B (en) * | 2021-10-19 | 2022-10-11 | 沈阳泰科流体控制有限公司 | Secondary net valve opening control method and system |
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