CN219978716U - Intelligent centralized control device for heat exchange unit instrument - Google Patents
Intelligent centralized control device for heat exchange unit instrument Download PDFInfo
- Publication number
- CN219978716U CN219978716U CN202222569924.6U CN202222569924U CN219978716U CN 219978716 U CN219978716 U CN 219978716U CN 202222569924 U CN202222569924 U CN 202222569924U CN 219978716 U CN219978716 U CN 219978716U
- Authority
- CN
- China
- Prior art keywords
- interface
- signal
- control device
- centralized control
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 16
- 230000002452 interceptive effect Effects 0.000 claims description 9
- 230000001629 suppression Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model provides an intelligent centralized control device for a heat exchange unit instrument, which comprises a multi-core singlechip, a first fence type wiring terminal, an interface protection circuit and a second fence type wiring terminal, and can realize centralized control of functions such as digital quantity signal acquisition, switch control, analog quantity signal acquisition, analog quantity signal output control, thermal resistance signal acquisition, RS485 instrument data acquisition, remote Moubus communication and the like, so that a scheme of remote control of the heat exchange unit is realized, the investment of on-site cable laying is less, the construction is more convenient, and the cost performance is high.
Description
Technical Field
The utility model relates to the technical field of residential and regional heating systems, in particular to an intelligent centralized control device for heat exchange unit meters.
Background
The heat supply pipe network is an important social infrastructure for guaranteeing national economic construction and folk life, wherein the heat exchange unit consists of a heat exchanger, a temperature control valve group, a drainage valve group (when the heating medium is steam), a circulating pump, an electric control cabinet, a base, a pipeline, a valve, an instrument and the like, and an expansion tank, water treatment equipment, water pump variable frequency control, a temperature control valve, remote communication control and the like can be additionally arranged, so that a complete heat exchange station is formed. The equipment related to the heat exchanger unit is in decentralized control, if the use of the heat exchanger unit is required, a user needs to purchase a plurality of manufacturer equipment for combination configuration, and a single signal conversion module is available in the market, such as digital input/output conversion RS485, analog input/output conversion RS485, PT1000 conversion RS485 and the like, but the conversion modules have single functions and cannot meet the centralized control requirements of all the equipment of the heat exchanger unit, and the problems of large occupied space, inconvenience in installation and debugging and high input cost exist by adopting a combination scheme.
Disclosure of Invention
In order to solve the technical problems, the utility model utilizes the following specific technical scheme:
an intelligent centralized control device for heat exchange unit meters, comprising:
the multi-core singlechip is respectively in interactive signal connection with the first end of the multipath AI input analog quantity interface, the first end of the multipath passive digital quantity input interface, the first end of the isolation CAN transceiver, the RJ45 network interface and the isolation 485 interface, and is respectively in signal connection with the output end of the multipath passive digital quantity output interface and the input end of the multipath thermal resistor acquisition interface;
the first fence type wiring terminal is in interactive signal connection with the second end of the isolation CAN transceiver, and is in signal connection with the multi-core singlechip through a common mode noise suppression protector and an isolation DC-DC module in sequence;
the interface protection circuit is respectively connected with the second end of the multipath AI input analog quantity interface and the second end of the multipath passive digital quantity input interface in an interactive signal manner, and is connected with the input end of the multipath passive digital quantity output interface and the output end of the multipath thermal resistor acquisition interface in a signal manner; and
and the second fence type wiring terminal is welded with the interface protection circuit through a PCB flat cable.
Further, one end of the isolation DC-DC module is connected with a multipath AQ output analog quantity interface in a signal mode.
Preferably, the multi-core singlechip is also connected with a factory setting restoration key in a signal manner.
Preferably, the multi-core singlechip is an M4-core singlechip.
According to the technical scheme, the centralized control of functions such as digital quantity signal acquisition, switch control, analog quantity signal acquisition, analog quantity signal output control, thermal resistance signal acquisition, RS485 instrument data acquisition, remote Moubus communication and the like can be realized, the scheme of remote control of the heat exchange unit is realized, the investment of on-site cable laying is less, the construction is more convenient, and the cost performance is high.
Drawings
FIG. 1 is a schematic diagram of an intelligent centralized control device according to the present utility model;
fig. 2 is a schematic diagram of connection of the intelligent centralized control device in an embodiment.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and detailed embodiments, and before the technical solutions of the embodiments of the present utility model are described in detail, the terms and terms involved will be explained, and in the present specification, the components with the same names or the same reference numerals represent similar or identical structures, and are only limited for illustrative purposes.
As shown in fig. 1, the intelligent centralized control device of the present utility model is composed of a multi-core single chip microcomputer 10, a first fence-type wiring terminal 20, an interface protection circuit 30 and a second fence-type wiring terminal 40.
The multi-core single chip microcomputer 10 adopts an M4 core single chip microcomputer, specifically adopts a uCOS-II operating system kernel based on the Cortex-M4 core single chip microcomputer, is specially designed for embedded application, and can be operated on various microcontrollers. The M4 core single chip provides an industry leading high performance and low cost solution, with a corresponding increase in software complexity.
The multi-core single chip microcomputer 10 is respectively connected with the first end of the multi-path AI input analog quantity interface 11, the first end of the multi-path passive digital quantity input interface 12 and the first end of the isolation CAN transceiver 13 in an interactive signal manner, and the multi-core single chip microcomputer 10 is also respectively connected with the output end of the multi-path passive digital quantity output interface 14 and the input end of the multi-path thermal resistor acquisition interface 15 in a signal manner. The multi-core singlechip 10 is also connected with a factory reset button 16 in a signal way.
Among the types of the connection terminals, the first fence-type connection terminal 20 and the second fence-type connection terminal 40 adopt a fence-type structure, so that safe, reliable and effective connection can be realized, and the connection terminal is widely applied particularly in the use environments of high current and high voltage. The first fence type wiring terminal 20 is in interactive signal connection with the second end of the isolation CAN transceiver 13, the first fence type wiring terminal 20 is in signal connection with the multi-core single chip microcomputer 10 sequentially through the common mode noise suppression protector 50 and the isolation DC-DC module 60, a first output end of the isolation DC-DC module 60 is in signal connection with the multi-core single chip microcomputer 10, and a second output end of the isolation DC-DC module 60 is in signal connection with the multipath AQ output analog interface 70.
According to the intelligent centralized control device of the heat exchange unit instrument, through integrated design, the digital input/output, the analog input/input, the thermal resistance input, the RS485 downlink/uplink communication and other instrument interfaces are integrated on one module, so that the purchase cost and the installation space of equipment are greatly reduced, and the debugging is more convenient. By adopting the scheme that the intelligent centralized control device is not near the unit and the equipment is connected with the remote controller through Ethernet communication, the length and the laying difficulty of on-site cable laying are reduced, and the construction cost and the construction and debugging difficulty are reduced. In addition, the utility model also adopts a DC/D circuit common mode noise suppression scheme, can more effectively protect the safety of internal circuit elements, enhances the electromagnetic interference resistance of equipment, makes the equipment more difficult to adapt to complex and severe field environments in the heat supply industry, and has more practicability.
The utility model also provides an interface protection circuit 30 between the multi-core singlechip 10 and the second fence type wiring terminal 40, which can protect one side interface of the multi-core singlechip 10 with higher use frequency, specifically, the interface protection circuit 30 is respectively connected with the second end of the multi-path AI input analog quantity interface 11 and the second end of the multi-path passive digital quantity input interface 12 in an interactive manner, and the interface protection circuit 30 is connected with the input end of the multi-path passive digital quantity output interface 14 and the output end of the multi-path thermal resistor acquisition interface 15 in a signal manner.
Fig. 2 shows a specific connection structure diagram of the intelligent centralized control device for controlling the heat exchange unit instrument, wherein the intelligent centralized control device is arranged on the heat exchange unit and is connected with a sensor and an executing mechanism on the heat exchange unit to realize on-site information acquisition and control. Two pressure transmitters, a temperature sensor and an electric regulating valve are arranged on a primary side water outlet pipeline of the heat exchanger, one pressure transmitter, one temperature sensor and a heat meter are arranged on a primary side water inlet pipeline, three pressure transmitters, one temperature sensor and an electromagnetic valve are arranged on a secondary side water outlet pipeline, and one pressure transmitter and one temperature sensor are arranged on a secondary side water outlet pipeline.
In this embodiment, the multi-path AI input analog interface 11 can input 10 analog quantities, including a primary water supply pressure signal, a primary water return pressure signal, a secondary water supply pressure signal, a secondary water return pressure signal, a primary filtered pressure signal, a secondary filtered pressure signal, a primary regulating valve feedback signal, a circulating pump outlet pressure signal, and a standby AI input, and can support 0-10V/4-20 mA signal being configurable.
The multipath AQ output analog interface 12 can output 4 analog quantities, including a primary regulating valve opening given signal and standby AQ output, and also supports 0-10V/4-20 mA signal configuration.
The multi-path passive digital quantity input interface 13 inputs 4 digital quantities for monitoring an external switch quantity signal, wherein the digital quantities specifically comprise a pressure release valve opening state, a pressure release valve closing state and a standby digital quantity input.
The multi-path passive digital quantity output interface 14 outputs 4 digital quantities to realize on-off control, including a pressure release valve opening instruction, a pressure release valve closing instruction and standby digital quantity output.
The multi-path thermal resistor collection interface 15 can collect 6 thermal resistors, including primary water supply temperature signals, primary water return temperature signals, secondary water supply temperature signals, secondary water return temperature signals and standby thermal resistor input signals, and supports PT1000/PT100 signal types.
The digital input/output, the analog input/output and the thermal resistor input of the utility model are respectively provided with corresponding register addresses, and the data of the corresponding channels can be read and written through the corresponding registers, thereby realizing the acquisition of field signals and the control of instructions.
The multi-core singlechip 10 is also interactively connected with an RJ45 network interface 17 and an isolation 485 interface 18, wherein the RJ45 network interface 17 supports modbusRtu protocol, and client equipment can read and write register data of the intelligent centralized control device through the interface; the isolation 485 interface 18 comprises an RS485 uplink interface and an RS485 downlink interface, wherein the RS485 uplink interface supports a modbus protocol, the master station equipment can read and write register data of the intelligent centralized control device through the interface, the RS485 downlink interface supports a modbusRtu protocol, and the interface is connected with a field instrument, so that the acquisition function of the instrument can be realized.
The above-described embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.
Claims (9)
1. An intelligent centralized control device for heat exchange unit meters, comprising:
the multi-core singlechip is respectively in interactive signal connection with the first end of the multipath AI input analog quantity interface, the first end of the multipath passive digital quantity input interface, the first end of the isolation CAN transceiver, the RJ45 network interface and the isolation 485 interface, and is respectively in signal connection with the output end of the multipath passive digital quantity output interface and the input end of the multipath thermal resistor acquisition interface;
the first fence type wiring terminal is in interactive signal connection with the second end of the isolation CAN transceiver, and is in signal connection with the multi-core singlechip through a common mode noise suppression protector and an isolation DC-DC module in sequence;
the interface protection circuit is respectively connected with the second end of the multipath AI input analog quantity interface and the second end of the multipath passive digital quantity input interface in an interactive signal manner, and is connected with the input end of the multipath passive digital quantity output interface and the output end of the multipath thermal resistor acquisition interface in a signal manner; and
and the second fence type wiring terminal is welded with the interface protection circuit through a PCB flat cable.
2. The intelligent centralized control device of claim 1, wherein one end of the isolated DC-DC module is connected to a multi-channel AQ output analog interface.
3. The intelligent centralized control device of claim 1, wherein the multi-core single-chip microcomputer is further in signal connection with a restore factory setting key.
4. The intelligent centralized control device of claim 1, wherein the multi-core single-chip microcomputer is an M4-core single-chip microcomputer.
5. The intelligent centralized control device of claim 1, wherein the analog of the multi-path AI input analog interface includes a primary water supply pressure signal, a primary return water pressure signal, a secondary water supply pressure signal, a secondary return water pressure signal, a primary filtered pressure signal, a secondary filtered pressure signal, a primary regulator feedback signal, a circulating pump outlet pressure signal, and a backup AI input.
6. The intelligent centralized control device of claim 2, wherein the analog of the multi-way AQ output analog interface comprises a primary regulator valve opening given signal and a backup AQ output.
7. The intelligent centralized control device of claim 1, wherein the digital values of the multi-way passive digital value input interface comprise a pressure relief valve open state, a pressure relief valve closed state, and a backup digital value input.
8. The intelligent centralized control device of claim 1, wherein the digital quantities of the multi-way passive digital quantity output interface comprise a relief valve open command, a relief valve closed command, and a backup digital quantity output.
9. The intelligent centralized control device of claim 1, wherein the thermal resistors of the multi-channel thermal resistor acquisition interface comprise a primary water supply temperature signal, a primary water return temperature signal, a secondary water supply temperature signal, a secondary water return temperature signal, and a backup thermal resistor input signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569924.6U CN219978716U (en) | 2022-09-27 | 2022-09-27 | Intelligent centralized control device for heat exchange unit instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569924.6U CN219978716U (en) | 2022-09-27 | 2022-09-27 | Intelligent centralized control device for heat exchange unit instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219978716U true CN219978716U (en) | 2023-11-07 |
Family
ID=88578619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222569924.6U Active CN219978716U (en) | 2022-09-27 | 2022-09-27 | Intelligent centralized control device for heat exchange unit instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219978716U (en) |
-
2022
- 2022-09-27 CN CN202222569924.6U patent/CN219978716U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107112750B (en) | Remote terminal unit hardware architecture | |
| JP2017514246A (en) | Remote terminal unit (RTU) with universal input / output (UIO) and associated method | |
| CN102325149B (en) | Intelligent network remote terminal unit (RTU) system of electrified railway | |
| US8590802B2 (en) | Water heater control module | |
| CN101393245A (en) | Synthesis monitoring instrument for transformer | |
| CN103248126B (en) | Photovoltaic case becomes intelligent protection supervising device | |
| CN219978716U (en) | Intelligent centralized control device for heat exchange unit instrument | |
| CN209088984U (en) | The protective relaying device of PROFIBUS and RS485 double-network communication | |
| CN108268001A (en) | High-performance MODBUS-IO expansion modules | |
| CN203249957U (en) | Multi-path voltage monitoring device | |
| CN103490797A (en) | Intelligent communication system based on power lines | |
| CN201278008Y (en) | Transformer integrated monitor | |
| CN202066117U (en) | Thermal energy district heating controller | |
| CN110764428A (en) | Household electric equipment state management system | |
| CN2566522Y (en) | Automation device for transformer substation | |
| CN201111710Y (en) | Water and electricity dual-control management device | |
| CN207689896U (en) | Heat exchange station new controller | |
| CN203687187U (en) | Heat-supply energy-saving automatic-control device | |
| CN207867314U (en) | High-performance MODBUS-IO expansion modules | |
| CN2552254Y (en) | Network communication controller for domestic electrical appliance | |
| CN113036925A (en) | Metering automation terminal | |
| CN220674102U (en) | Energy-saving control system for building cold source system and tail end air conditioner | |
| CN206806973U (en) | Power relay protection device | |
| CN206557281U (en) | electric energy efficiency monitoring terminal | |
| CN214591489U (en) | Industrial internet gateway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |