CN215982769U - Novel heating plate type heat exchange unit device and heating system thereof - Google Patents
Novel heating plate type heat exchange unit device and heating system thereof Download PDFInfo
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- CN215982769U CN215982769U CN202122669760.XU CN202122669760U CN215982769U CN 215982769 U CN215982769 U CN 215982769U CN 202122669760 U CN202122669760 U CN 202122669760U CN 215982769 U CN215982769 U CN 215982769U
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Abstract
The utility model provides a novel board-like heat exchanger unit of heating device and heating system thereof, includes: a water supply system and a control system; the water supply system comprises a primary water supply loop and a secondary water supply loop; the primary water supply loop comprises a primary water supply pipeline and a primary water return pipeline which are connected with the primary input end and the primary output end of the plate heat exchanger; the secondary water supply loop comprises a secondary water supply pipeline and a secondary water return pipeline which are connected with the secondary input end and the secondary output end of the plate heat exchanger; the control system comprises a PLC, a temperature sensor, a touch screen and a pump body control module; the PLC is electrically connected with the touch screen, the pump body control module, the temperature sensor, the electric valve and the water drain valve; the circulating pump and the water replenishing pump are electrically connected with the pump body control module. The utility model ensures the stability of the temperature and the pressure of the heating system, saves energy, monitors the pressure of secondary water supply, and gives an alarm when the pressure is too high or too low, so that the heating plate type heat exchanger unit is more intelligent, the event processing efficiency is improved, and the occurrence of water leakage events is avoided.
Description
Technical Field
The utility model relates to a building heating device, in particular to a novel heating plate type heat exchanger unit device and a heating system thereof.
Background
A heating system of a service building in an urban office area has no automatic control function in the future, and remote automatic control and monitoring cannot be realized. Temperature is unstable during municipal administration heat supply, can't ensure the stability of secondary heat supply temperature, and the pressure fluctuation is great (expend with heat and contract with cold effect), appears the phenomenon of running, falling, dripping and leaking very easily, and the personnel on duty can not in time discover, more can not obtain the processing fast, causes economic property loss. The service building provides accommodation for the owner and uses, and is unmanned in the office in daytime, only uses when the night accommodation, therefore the water supply temperature of daytime and night can be set respectively, and under the condition that does not have automatic control system, daytime and night can only set for a temperature, cause the energy waste.
Prior art, such as chinese patent, application number: CN 201920143357.3, publication number: CN 209512150U discloses a full-automatic type plate heat exchanger group, includes: the primary side of the plate heat exchanger is respectively connected with a primary side water supply pipe and a primary side water return pipe, and the primary side water supply pipe is sequentially provided with an electric regulating valve; the secondary side of the plate heat exchanger is respectively connected with a secondary side water supply pipe and a secondary side water return pipe, the secondary side water return pipe is provided with the circulating pump and a circulating pump bypass pipe, the circulating pump is connected with a circulating pump frequency converter, the secondary side water supply pipe is connected with a water replenishing pipe, the water replenishing pipe is arranged close to a water inlet of the circulating pump, the water replenishing pipe is provided with the water replenishing pump and a water replenishing pump bypass pipe, and the water replenishing pump is connected with a water replenishing pump frequency converter; temperature sensors and pressure sensors are arranged on the primary side water supply pipe, the primary side water return pipe, the secondary side water supply pipe and the secondary side water return pipe; the controller is connected with the temperature sensor, the pressure sensor, the outdoor temperature sensor, the electric regulating valve, the circulating pump frequency converter and the water replenishing pump frequency converter respectively; the controller is a curing controller.
However, although the prior art has a certain advance by replacing the curing controller with the PLC controller, the technology is not suitable for all industrial and mining enterprises, firstly, the touch screen, the sensor and the PLC controller belong to known functional components, the technology is mature, the replacement is very easy to perform if the curing controller needs to be maintained, the replacement maintenance cost is reduced, and secondly, the curing controller has a complex structure and is high in purchase and maintenance cost.
Disclosure of Invention
In the future, the technical upgrading and reconstruction of the control system are carried out by the working personnel of the service building engineering department of the urban office area according to the current situation of the heating system of the service building, and the traditional PLC control technology is adopted to solve the defects in the background technology.
The technical scheme is as follows:
a novel heating plate type heat exchanger unit device comprises: a water supply system and a control system; the water supply system comprises a primary water supply loop and a secondary water supply loop; the primary water supply loop comprises a primary water supply pipeline and a primary water return pipeline which are connected with the primary input end and the primary output end of the plate heat exchanger, and an electric valve is arranged on the primary water return pipeline; the secondary water supply loop comprises a secondary water supply pipeline and a secondary water return pipeline which are connected with the secondary input end and the secondary output end of the plate heat exchanger, and a water replenishing pump, a water draining valve and a circulating pump are sequentially arranged on the secondary water return pipeline; the control system comprises a PLC (programmable logic controller), a pressure sensor, a temperature sensor, a touch screen and a pump body control module; the PLC is electrically connected with the touch screen and the pump body control module in an RS232 unbalanced transmission mode or an RS485 differential transmission mode; the pressure sensor, the temperature sensor, the electric valve and the water drain valve are electrically connected with the PLC through a data bus; and the circulating pump and the water replenishing pump are electrically connected with the pump body control module.
Preferably: still include the power module who provides the power to PLC controller, pump body control module and touch-sensitive screen.
Preferably: the temperature sensor comprises an indoor temperature sensor and an outdoor temperature sensor, and the indoor temperature sensor and the outdoor temperature sensor are respectively and electrically connected with the PLC.
Preferably: the water release valve is installed at the output end of the water replenishing pump and is controlled by the PLC.
Preferably: the system also comprises a return water pressure and a temperature sensor which are arranged at the output end of the circulating pump, and a water supply pressure and a temperature sensor which are arranged on the primary water supply pipeline, wherein the return water pressure, the water supply pressure and the temperature sensor are all electrically connected with the PLC.
Preferably: the touch screen displays the pressure and the temperature of primary water supply, the temperature and the pressure of secondary backwater and indoor and outdoor temperature parameters; and a touch instruction is sent out through the touch screen, and the remote end controls the working process of the electric valve, the drain valve, the circulating pump and the water replenishing pump.
Preferably: the pump body control module is used for acquiring and processing the working states of the circulating pump and the water replenishing pump, uploading the result to the PLC, and sending a control instruction through the PLC to control the working states of the circulating pump and the water replenishing pump.
Preferably: the power supply module comprises a quick fuse tube, an air switch, an alternating current contactor, a transformer and a voltage stabilizing chip; the 220V mains supply is connected with the primary side of the transformer through the quick fuse tube, the air switch and the alternating current contactor in sequence; the secondary side of the transformer comprises a plurality of output voltage taps, and each output is connected with a voltage stabilizing chip after full-wave rectification and filtering; the voltage stabilizing chip provides stable power supply voltage for the touch screen, the PLC and the pump body control module.
Preferably: the voltage stabilizing chip comprises a 7805 chip and an LDO chip, wherein the model PW6206 is the model of the 7805 chip, and the output end of the LDO chip is connected with the input end of the LDO chip; the input end of the LDO chip is connected with a 10uf electrolytic capacitor and a 0.001uf nonpolar capacitor in parallel for filtering, and the output end of the LDO chip is connected with a 10uf nonpolar capacitor in parallel.
The utility model also discloses a heating system, which is characterized in that: the novel heating plate type heat exchanger unit device comprises the novel heating plate type heat exchanger unit device.
Advantageous effects
Compared with the prior solidification controller, the traditional PLC controller saves the upgrading cost and improves the efficiency;
the pump body control and the separate control strategies such as a sensor, an electric valve and a drain valve are controlled by a PLC (programmable logic controller), so that the production safety is improved;
the multi-output power supply voltage stabilization chip is adopted to ensure the stable power supply of the control system;
the working state of the system is displayed by adopting a touch screen at any time, so that a reliable basis is provided for an operator to obtain the running state of the device in time;
the stability of service building heating temperature and pressure has been ensured, carries out timesharing automatically regulated to the water supply temperature, the energy saving to monitor the pressure of secondary water supply, superelevation or low enough warning suggestion that will all make heating plate heat exchanger unit more intelligent, improve event processing efficiency, avoid the water leakage incident to take place.
Drawings
Fig. 1 is a schematic structural diagram of a heating plate type heat exchanger unit additionally provided with a control system.
Detailed Description
A novel heating plate type heat exchanger unit device comprises: a water supply system and a control system; the water supply system comprises a primary water supply loop and a secondary water supply loop; the primary water supply loop comprises a primary water supply pipeline and a primary water return pipeline which are connected with the primary input end and the primary output end of the plate heat exchanger, and an electric valve is arranged on the primary water return pipeline; the secondary water supply loop comprises a secondary water supply pipeline and a secondary water return pipeline which are connected with the secondary input end and the secondary output end of the plate heat exchanger, and a water replenishing pump, a water draining valve and a circulating pump are sequentially arranged on the secondary water return pipeline; the control system comprises a PLC (programmable logic controller), a pressure sensor, a temperature sensor, a touch screen and a pump body control module; the PLC is electrically connected with the touch screen and the pump body control module in an RS232 unbalanced transmission mode or an RS485 differential transmission mode; the pressure sensor, the temperature sensor, the electric valve and the water drain valve are electrically connected with the PLC through a data bus; and the circulating pump and the water replenishing pump are electrically connected with the pump body control module.
The function, function and reasons for selection of the individual functional components are explained in detail below:
a PLC controller: setting time and temperature of day/night to control the opening degree of the electric valve and the running frequency of the circulating pump; selecting the reason: the PLC controller is mature in technology, the functions are all conventional functions of the PLC, and the PLC is high in reliability, strong in anti-interference capability and stable in system operation. Compared with a novel control module such as a curing controller or a conventional single chip microcomputer and a DSP, the cost performance is higher, and particularly, the PLC modular design enables maintenance and updating of equipment to be more convenient.
Plate heat exchanger: and the heat source and the water of the secondary pipeline exchange heat.
Secondary water supply circulating pump control system: and controlling the operation of the secondary circulating pump.
Circulating pump: the circulating pump rotates to circularly pressurize so that water in the secondary pipeline flows to reach the tail end for heat dissipation;
pressure/temperature sensor: detecting the pressure and temperature of the secondary pipeline backwater, and providing signals of a pressure value and a temperature value for the PLC; selecting the reason: the pressure/temperature sensor has high reliability, small volume, light weight, convenient installation and debugging and long signal transmission distance.
Electric valve: the flow rate of the primary water supply entering the plate exchanger is controlled. Selecting the reason: the system flow can be accurately controlled in real time, and the PLC controller is used for controlling the system flow.
A water drain valve: and controlling the pressure of the secondary system. Selecting the reason: the system pressure can be reduced in real time.
A water replenishing pump for pressurizing and feeding water into the secondary water supply system
Heating secondary water supply pipeline: the heat source is pressurized by a secondary water supply circulating pump after exchanging heat with cold water of the secondary pipeline through the heating plate, and then the heat source is supplied to the upstairs by a secondary water supply pipeline.
Heating secondary water return pipeline: and the secondary water supply system dissipates heat through the tail end and then returns water of the unit through a pipeline.
Municipal primary water supply/return: the water is subjected to primary heat exchange through a primary water supply pipeline and a plate heat exchanger (the term in the industry is heating plate exchange), and then returns to a municipal primary water return pipeline, and returns to a municipal heat source for heating and then is circulated.
The working principle of the heating plate type heat exchanger unit device of the utility model is explained as follows:
when the heat source is supplied: supply/return water pipeline and heating board in municipal administration and trade (being plate heat exchanger) and once incline to be connected, the heating secondary supplies/return water pipeline and heating board and trades the secondary side and be connected, when municipal administration heat supply, water is endless, can directly trade with the heating board and carry out the heat transfer, open the circulating pump through secondary water supply circulating pump control system, secondary water supply is after the circulating pump pressurization, supply the heat source upstairs by the secondary water supply pipeline, it trades the heat transfer to be connected to the heating board through the return water pipeline again, the circulation of completion system.
And the pressure/temperature sensor arranged on the primary water supply pipeline is in data communication with the PLC in a data bus mode. When the PLC detects that the pressure of the primary water supply pipeline is inconsistent with the pressure value parameter set in the PLC, the PLC sends a command for controlling the driving module to drive the opening and closing of the electric valve so as to ensure that the water supply pressure in the primary water supply pipeline is kept stable; when the temperature feedback signal in the primary side water supply pipeline is different from the reference temperature range by the PLC controller, the PLC controller displays the real-time temperature of the acquired temperature signal through the touch screen and sends an alarm signal to a worker to judge the reason of temperature abnormity in a reference manner.
Similarly, the working principle of the pressure/temperature sensor arranged on the secondary water return pipeline is the same as that of the PLC, and when the PLC is detected to detect that the pressure of the secondary water return pipeline exceeds a reference value, the PLC sends a control instruction to the driving module to drive the drain valve to work, so that the opening and closing size of the drain valve is controlled; when the temperature feedback signal in the secondary side water supply pipeline is different from the reference temperature range by the PLC controller, the PLC controller displays the real-time temperature of the acquired temperature signal through the touch screen and sends an alarm signal to a worker to judge the reason of temperature abnormity in a reference manner.
The temperature sensor that sets up indoor, outdoor detects indoor outer temperature often, passes to PLC controller back through touch-sensitive screen display on the one hand with temperature signal and shows indoor outer temperature, and on the other hand passes through the functional unit that PLC controller control corresponds, and water supply temperature reaches the requirement in guaranteeing the water supply pipeline like motorised valve or through controlling pump body control module messenger circulating pump operating condition.
The pump body control module is used for acquiring and processing the working states of the circulating pump and the water replenishing pump, uploading results to the PLC, and giving out control instructions through the PLC, so that the working states of the circulating pump and the water replenishing pump are finally accurately controlled.
The touch screen can show each parameter in the heating plate type heat exchanger unit additional control device often, like the temperature of once supplying water pressure, temperature, secondary return water, pressure, indoor outer temperature isoparametric, and in addition, the touch screen also can be through touch instruction remote control motorised valve, outlet valve, circulating pump, the work progress of moisturizing pump.
In addition, the heating plate type heat exchanger unit additionally-installed control device comprises a power module which is used for providing electric energy for the touch screen, the PLC and the pump body control module, and the power module comprises an air switch, an alternating current contactor, a transformer and a voltage stabilizing chip; the 220V mains supply is connected with the primary side of the transformer through the quick fuse tube, the air switch and the alternating current contactor in sequence; the secondary side of the transformer comprises a plurality of output voltage taps, and each output is connected with a voltage stabilizing chip after full-wave rectification and filtering; the required steady voltage power supply of steady voltage chip package touch-sensitive screen, PLC controller, pump body control module includes: the output end of the 7805 chip is connected with the input end of the LDO, and after secondary voltage reduction, the LDO chip is ensured to output stable 3V voltage; the input end of the PW6206 is connected with a 10uf electrolytic capacitor and a 0.001uf nonpolar capacitor in parallel for filtering, and the output end of the PW6206 is connected with a 10uf nonpolar capacitor in parallel; in addition, in order to save cost, an AMS1117-3.3V power supply voltage stabilizing chip can be selected and directly connected with the output end of a 7805 chip, and a filter circuit of the chip is consistent with the above.
When the system operates, the mode is switched between the day mode and the night mode through the setting of the PLC controller, when no person stays in the daytime, the water supply temperature is automatically reduced, and when the person stays in the night, the water supply temperature is automatically increased, so that the purposes of energy conservation and consumption reduction are achieved while the heat source supply stability of the system is ensured.
In a word, when the pressure/temperature of the primary water supply/return pipeline of the heating plate type heat exchange unit device is unstable, the pressure/temperature sensor realizes data communication with the PLC in a data bus mode, the PLC compares the data detected by the pressure/temperature sensor with the set data, and the operations of electric valve opening degree adjustment, circulating pump running frequency adjustment, water replenishing pump start and stop, water drain valve opening and closing and the like are carried out timely; when the control system detects that the pressure of the secondary pipeline is abnormal and the secondary pipeline is abnormal, such as running, overflowing, dripping, leaking and the like which are not operated by the regulating program, the system can automatically send alarm information to prompt the personnel on duty.
After the heating plate type heat exchanger unit device is applied to a heating system of a service building in an office area of a future city, the heating plate type heat exchanger unit device runs for a period of time, and the following benefits are obtained:
economic benefits are as follows: after the control system is additionally arranged on the heating plate type heat exchanger unit of the service building, the temperature of secondary heat supply is guaranteed, and the pressure stability of a heat supply system is guaranteed. The secondary heat supply temperature can be supplied in different periods by combining the use mode of the service building, the purposes of energy conservation and emission reduction and cost reduction are achieved on the premise of ensuring the temperature, and the water leakage event is also avoided.
And (3) management benefits: the research and implementation process of the control system improves the understanding of the staff in the front line on new technology and new knowledge, and stimulates the enthusiasm of technical innovation.
The effect is influenced: after the control system is additionally arranged, when the system has the phenomenon of leakage, overflow and drip, the control system can send out an alarm signal in time, thereby avoiding the economic loss caused by the water leakage event
The basic principles, principal features and advantages of the utility model have been shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a novel board-like heat exchanger unit of heating device which characterized in that: the method comprises the following steps: a water supply system and a control system; the water supply system comprises a primary water supply loop and a secondary water supply loop; the primary water supply loop comprises a primary water supply pipeline and a primary water return pipeline which are connected with the primary input end and the primary output end of the plate heat exchanger, and an electric valve is arranged on the primary water return pipeline; the secondary water supply loop comprises a secondary water supply pipeline and a secondary water return pipeline which are connected with the secondary input end and the secondary output end of the plate heat exchanger, and a water replenishing pump, a water draining valve and a circulating pump are sequentially arranged on the secondary water return pipeline; the control system comprises a PLC (programmable logic controller), a pressure sensor, a temperature sensor, a touch screen and a pump body control module; the PLC is electrically connected with the touch screen and the pump body control module in an RS232 unbalanced transmission mode or an RS485 differential transmission mode; the pressure sensor, the temperature sensor, the electric valve and the water drain valve are electrically connected with the PLC through a data bus; and the circulating pump and the water replenishing pump are electrically connected with the pump body control module.
2. The novel heating plate type heat exchanger unit device according to claim 1, wherein: still include the power module who provides the power to PLC controller, pump body control module and touch-sensitive screen.
3. The novel heating plate type heat exchanger unit device according to claim 1, wherein: the temperature sensor comprises an indoor temperature sensor and an outdoor temperature sensor, and the indoor temperature sensor and the outdoor temperature sensor are respectively and electrically connected with the PLC.
4. The novel heating plate type heat exchanger unit device according to claim 1, wherein: the water release valve is installed at the output end of the water replenishing pump and is controlled by the PLC.
5. The novel heating plate type heat exchanger unit device according to claim 1, wherein: the system also comprises a return water pressure and a temperature sensor which are arranged at the output end of the circulating pump, and a water supply pressure and a temperature sensor which are arranged on the primary water supply pipeline, wherein the return water pressure, the water supply pressure and the temperature sensor are all electrically connected with the PLC.
6. The novel heating plate type heat exchanger unit device according to claim 1, wherein: the touch screen displays the pressure and the temperature of primary water supply, the temperature and the pressure of secondary backwater and indoor and outdoor temperature parameters; and a touch instruction is sent out through the touch screen, and the remote end controls the working process of the electric valve, the drain valve, the circulating pump and the water replenishing pump.
7. The novel heating plate type heat exchanger unit device according to claim 1, wherein: the pump body control module is used for acquiring and processing the working states of the circulating pump and the water replenishing pump, uploading the result to the PLC, and sending a control instruction through the PLC to control the working states of the circulating pump and the water replenishing pump.
8. The novel heating plate type heat exchanger unit device according to claim 2, wherein: the power supply module comprises a quick fuse tube, an air switch, an alternating current contactor, a transformer and a voltage stabilizing chip; the 220V mains supply is connected with the primary side of the transformer through the quick fuse tube, the air switch and the alternating current contactor in sequence; the secondary side of the transformer comprises a plurality of output voltage taps, and each output is connected with a voltage stabilizing chip after full-wave rectification and filtering; the voltage stabilizing chip provides stable power supply voltage for the touch screen, the PLC and the pump body control module.
9. The novel heating plate type heat exchanger unit device according to claim 8, wherein: the voltage stabilizing chip comprises a 7805 chip and an LDO chip, wherein the model PW6206 is the model of the 7805 chip, and the output end of the LDO chip is connected with the input end of the LDO chip; the input end of the LDO chip is connected with a 10uf electrolytic capacitor and a 0.001uf nonpolar capacitor in parallel for filtering, and the output end of the LDO chip is connected with a 10uf nonpolar capacitor in parallel.
10. A heating system, characterized by: the novel heating plate type heat exchanger unit device comprises the novel heating plate type heat exchanger unit device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122669760.XU CN215982769U (en) | 2021-11-03 | 2021-11-03 | Novel heating plate type heat exchange unit device and heating system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122669760.XU CN215982769U (en) | 2021-11-03 | 2021-11-03 | Novel heating plate type heat exchange unit device and heating system thereof |
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| CN215982769U true CN215982769U (en) | 2022-03-08 |
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| CN202122669760.XU Active CN215982769U (en) | 2021-11-03 | 2021-11-03 | Novel heating plate type heat exchange unit device and heating system thereof |
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- 2021-11-03 CN CN202122669760.XU patent/CN215982769U/en active Active
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