CN212644739U - Electrode boiler heating system - Google Patents
Electrode boiler heating system Download PDFInfo
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- CN212644739U CN212644739U CN202020693868.5U CN202020693868U CN212644739U CN 212644739 U CN212644739 U CN 212644739U CN 202020693868 U CN202020693868 U CN 202020693868U CN 212644739 U CN212644739 U CN 212644739U
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Abstract
The utility model discloses an electrode boiler heating system, it utilizes the heat supply network circulating pump to extract cold water pressurization from the female pipe of municipal heat supply network return water and carries to a plurality of shell and tube type heat exchangers of electrode boiler and carry out the heat exchange, and hot water after the heat exchange is carried to the female pipe of municipal heat supply network water supply again to for hot user's hot water supply, utilize flow measuring device to measure the hot water flow of output. Meanwhile, a bypass pipeline is connected beside the heat supply network circulating pump in parallel, the bypass pipeline is controlled to be opened when the hot water flow output by the electrode boiler is detected to be smaller than a first threshold value, cold water output after the heat supply network circulating pump is pressurized is recirculated through the bypass pipeline, the heat supply network circulating pump is prevented from idling, the heat supply network circulating pump can be safely operated when the system is in a low-load operation state, the fault rate of the heat supply network circulating pump is reduced, the bypass pipeline is controlled to be closed when the hot water flow output by the electrode boiler is detected to be larger than a second threshold value, the cold water supply amount in unit time is increased, and the heat supply efficiency is increased.
Description
Technical Field
The utility model relates to an electrode boiler heat supply technical field especially relates to an electrode boiler heating system.
Background
The electrode boiler heat supply utilizes peak-valley electricity price difference, and the electrode boiler operates efficiently to supply heat during the night low-valley electricity price period, and the electrode boiler heat supply system has the characteristics of high energy efficiency, low operation cost, safety, stability, mature technology, low power distribution cost and the like. However, the current electrode boiler heat supply project does not adopt sufficient heat supply network side protection measures, so that the failure rate is high, and the normal and stable operation of electrode boiler heat supply cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electrode boiler heating system to solve current electrode boiler heat supply engineering and do not take the technical problem that the fault rate that heat supply network side safeguard measure leads to is high.
According to one aspect of the utility model, an electrode boiler heating system is provided, which comprises an electrode boiler, a booster pump set, a flow measuring device and a decentralized control system, the water inlet pipeline of the electrode boiler is communicated with the water outlet pipeline of the booster pump set, the water outlet pipeline of the electrode boiler is communicated with the municipal heat supply network water supply main pipe, the water inlet pipeline of the booster pump set is communicated with a municipal heat supply network backwater main pipe, the flow measuring device is arranged on the water outlet pipeline of the electrode boiler and is used for measuring the hot water flow output by the electrode boiler, the electrode boiler comprises a plurality of shell-and-tube heat exchangers arranged in parallel, the booster pump set comprises at least one heat supply network circulating pump, the heat supply network circulating pump is used for pumping cold water in the municipal heat supply network return water main pipe and conveying the cold water to the plurality of shell-and-tube heat exchangers for heat exchange in a pressurizing manner, and hot water after heat exchange is circulated to the municipal heat supply network water supply main pipe through a water outlet pipeline of the electrode boiler;
the booster pump group further comprises a bypass pipeline which is connected with the heat supply network circulating pump in parallel, a bypass valve is arranged on the bypass pipeline, the electrode boiler, the flow measuring device, the heat supply network circulating pump and the bypass valve are electrically connected with the decentralized control system, the decentralized control system is used for controlling the working states of the electrode boiler, the heat supply network circulating pump and the bypass valve, the decentralized control system is further used for controlling the bypass valve to be opened when the flow measuring device detects that the hot water flow output by the electrode boiler is lower than a first threshold value, and controlling the bypass valve to be closed when the flow measuring device detects that the hot water flow output by the electrode boiler is larger than a second threshold value or the heat supply network circulating pump stops operating.
Furthermore, the booster pump group comprises two heat supply network circulating pumps which are arranged in parallel, one of the heat supply network circulating pumps operates normally, the other heat supply network circulating pump is used for standby, a water inlet valve is arranged at the water inlet end of each heat supply network circulating pump, a water outlet valve is arranged at the water outlet end of each heat supply network circulating pump, and the water inlet valve and the water outlet valve are both electrically connected with the distributed control system.
Furthermore, still be provided with the first pressure transmitter that is used for detecting the pipeline internal pressure on the outlet pipe way of electrode boiler, first pressure transmitter and decentralized control system electric connection, decentralized control system still is used for controlling reserve heat supply network circulating pump to put into operation when first pressure transmitter detects the pressure value in the outlet pipe way of electrode boiler and is less than the setting value.
Further, still including the first group thermal resistance that is used for detecting the motor stator winding temperature of heat supply network circulating pump, the second group thermal resistance that is used for detecting the motor bearing temperature of heat supply network circulating pump and the third group thermal resistance that is used for detecting the bearing temperature of heat supply network circulating pump, first group thermal resistance, second group thermal resistance and third group thermal resistance all with distributed control system electric connection, distributed control system still is used for controlling when the detection result of any one in first group thermal resistance, second group thermal resistance and the third group thermal resistance appears unusually the heat supply network circulating pump stall.
Furthermore, a filter for filtering is arranged on a water inlet pipeline of the booster pump set, and a driving motor of the filter is electrically connected with the distributed control system.
Furthermore, the end of intaking and the play water end of filter are provided with inlet valve and outlet valve respectively, just still be provided with the first differential pressure transmitter that is used for detecting the filter import and export pressure differential between the end of intaking and the play water end of filter, first differential pressure transmitter, inlet valve and outlet valve all with decentralized control system electric connection, decentralized control system is used for when first differential pressure transmitter detects that the import and export pressure differential of filter is higher than the setting value and duration surpasss the preset time the outlet valve door of filter is closed, begins the self-cleaning blowdown.
The bypass pipeline is provided with a bypass valve, the bypass valve is electrically connected with the distributed control system, the inlet valve and the outlet valve are closed when the distributed control system is in a fault or maintenance state, the bypass valve is opened, the inlet valve and the outlet valve are opened after the fault or maintenance state is relieved, and the bypass valve is closed.
Further, the flow rate measurement device employs any one of an ultrasonic flow meter, an electromagnetic flow meter, and an orifice plate.
Furthermore, flow measuring device includes the measurement orifice plate, the measurement orifice plate disposes second differential pressure transmitter, second differential pressure transmitter cooperation measurement orifice plate is used for measuring the hot water flow of electrode boiler output, second differential pressure transmitter and decentralized control system electric connection.
Furthermore, a temperature compensation thermal resistor for detecting water temperature is further arranged on a water outlet pipeline of the electrode boiler and is electrically connected with the distributed control system, and the distributed control system is further used for carrying out water flow temperature compensation calculation according to a temperature detection result of the temperature compensation thermal resistor.
The utility model discloses has following effect:
the utility model discloses an electrode boiler heating system utilizes the heat supply network circulating pump to extract cold water pressurization from the female pipe of municipal heat supply network return water and carries to a plurality of shell and tube type heat exchangers of electrode boiler and carry out the heat exchange, and hot water after the heat exchange is carried to the female pipe of municipal heat supply network water supply from the outlet conduit of electrode boiler to for hot user's hot water supply, and utilize flow measuring device to come the hot water flow of real-time measurement output and give decentralized control system with measuring result transmission. Meanwhile, a bypass pipeline is connected beside the heat supply network circulating pump in parallel, when the flow measuring device detects that the hot water flow output by the electrode boiler is smaller than a first threshold value, the bypass pipeline is controlled to be opened, so that cold water output after the heat supply network circulating pump is pressurized is recirculated through the bypass pipeline, the heat supply network circulating pump is prevented from idling, the heat supply network circulating pump can be safely operated when the system is in a low-load operation state, the fault rate of the heat supply network circulating pump is reduced, and when the flow measuring device detects that the hot water flow output by the electrode boiler is larger than a second threshold value, the bypass pipeline is controlled to be closed, the cold water supply amount in unit time is increased, and the heat supply efficiency is increased.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic view of a piping connection structure of a heating system of an electrode boiler according to a preferred embodiment of the present invention.
Description of the reference numerals
10. An electrode boiler; 11. a booster pump group; 12. a flow measuring device; 13. a shell-and-tube heat exchanger; 14. a heat supply network circulation pump; 15. a first pressure transmitter; 16. a filter; 17. a first differential pressure transmitter; 18. a temperature compensating thermal resistance; 121. measuring an orifice plate; 122. a second differential pressure transmitter.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
As shown in fig. 1, the preferred embodiment of the utility model provides an electrode boiler heating system, it includes electrode boiler 10, pump package 11, flow measuring device 12 and the distributed control system steps up, electrode boiler 10's inlet channel with pump package 11's outlet channel intercommunication steps up, electrode boiler 10's outlet channel and the female pipe intercommunication of municipal heat supply network water supply, pump package 11's inlet channel and the female pipe intercommunication of municipal heat supply network return water step up, flow measuring device 12 sets up on electrode boiler 10's outlet channel and is used for measuring the hot water flow of electrode boiler 10 output. The electrode boiler 10 includes a plurality of shell-and-tube heat exchangers 13 arranged in parallel, in the preferred embodiment, the electrode boiler 10 includes two shell-and-tube heat exchangers 13 arranged in parallel, and certainly, in other embodiments, the electrode boiler may also include three, four or more shell-and-tube heat exchangers 13, a water inlet pipe of the shell-and-tube heat exchanger 13 is provided with a water inlet valve, and a water outlet pipe is provided with a water outlet valve. The booster pump group 11 comprises at least one heat supply network circulating pump 14, the heat supply network circulating pump 14 is adjusted by frequency conversion, the heat supply network circulating pump 14 is used for extracting cold water in a municipal heat supply network backwater main pipe and pressurizing and conveying the cold water to the plurality of shell-and-tube heat exchangers 13 for heat exchange, and hot water after heat exchange circulates to the municipal heat supply network water supply main pipe through a water outlet pipeline of the electrode boiler 10 so as to supply hot water to a heat user. The booster pump group 11 further includes a bypass pipeline connected in parallel with the heat supply network circulation pump 14, a bypass valve is arranged on the bypass pipeline, the electrode boiler 10, the flow measuring device 12, the heat supply network circulation pump 14 and the bypass valve are all electrically connected with the decentralized control system, the decentralized control system can control the working states of the electrode boiler 10, the heat supply network circulation pump 14 and the bypass valve, for example, the electrode boiler 10, the heat supply network circulation pump 14 and the bypass valve are controlled to be opened or closed, and the flow measuring device 12 can also transmit the measurement result to the decentralized control system. The decentralized control system is further configured to control the bypass valve to open when the flow measuring device 12 detects that the flow of the hot water output by the electrode boiler 10 is lower than a first threshold, and to control the bypass valve to close when the flow measuring device 12 detects that the flow of the hot water output by the electrode boiler 10 is greater than a second threshold, which is greater than the first threshold, or when the heat supply network circulation pump 14 stops operating. For example, when the flow measuring device 12 detects that the flow of the hot water output by the electrode boiler 10 is less than 30% of the target value, which means that the flow of the circulating water on the entire heat supply network side is insufficient, the system is in a low-load operation state, at this time, the distributed control system controls the bypass valve to be opened, so that the cold water output after the heat supply network circulating pump 14 is pressurized is recirculated through the bypass pipeline, and the heat supply network circulating pump 14 is prevented from idling, thereby ensuring that the heat supply network circulating pump 14 can be safely operated when the system is in the low-load operation state. In addition, when the flow rate measuring device 12 detects that the flow rate of the hot water output from the electrode boiler 10 is higher than 35% of the target value, and there is a risk that the heat network circulation pump 14 does not idle at this time, the distributed control system controls the closing of the bypass valve to increase the supply amount of the cold water per unit time, thereby improving the heating efficiency. It can be understood that specific values of the first threshold and the second threshold may be selected according to actual needs, and are not specifically limited herein.
It can be understood that, in the electrode boiler heating system of the embodiment, the heat supply network circulating pump 14 is used for pumping cold water from the municipal heat supply network return water main pipe, pressurizing and conveying the cold water to the plurality of shell-and-tube heat exchangers 13 of the electrode boiler 10 for heat exchange, the hot water after heat exchange is conveyed from the water outlet pipeline of the electrode boiler 10 to the municipal heat supply network water main pipe for supplying hot water to the hot user, and the flow measuring device 12 is used for measuring the flow of the outputted hot water in real time and transmitting the measurement result to the decentralized control system. Meanwhile, a bypass pipeline is connected in parallel beside the heat supply network circulating pump 14, when the flow measuring device 12 detects that the flow of hot water output by the electrode boiler 10 is smaller than a first threshold value, the bypass pipeline is controlled to be opened, cold water output after the heat supply network circulating pump 14 is pressurized is recirculated through the bypass pipeline, the heat supply network circulating pump 14 is prevented from idling, the heat supply network circulating pump 14 can be safely operated when the system is in a low-load operation state, the fault rate of the heat supply network circulating pump 14 is reduced, and when the flow measuring device 12 detects that the flow of hot water output by the electrode boiler 10 is larger than a second threshold value, the bypass pipeline is controlled to be closed, so that the cold water supply amount in unit time is increased, and the heat supply efficiency.
It can be understood that, specifically, the booster pump group 11 includes two heat supply network circulating pumps 14 connected in parallel, one of them is normally operated, another is for standby, a water inlet valve is arranged at a water inlet end of each heat supply network circulating pump 14, a water outlet valve is arranged at a water outlet end, and the water inlet valve and the water outlet valve are both electrically connected with the distributed control system. When the heat supply is started, the decentralized control system firstly controls the water outlet valve to be closed and controls the water inlet valve to be opened, then the heat supply network circulating pump 14 is started, the time delay is 3 seconds after the heat supply network circulating pump 14 is started, then the water outlet valve is controlled to be opened, and then the electrode boiler 10 is started. When the heat supply is stopped, the electrode boiler 10 is controlled to stop working, and then the heat supply network circulating pump 14, the water outlet valve and the water inlet valve are closed in sequence. The starting and stopping of the whole heating system are controlled in sequence, so that the whole system can operate normally and stably, and the failure rate of the whole system is reduced. In addition, once one of the heat supply network circulating pumps 14 fails, the water inlet valve and the water outlet valve can be controlled to be closed, so that the failed heat supply network circulating pump 14 can be conveniently overhauled, and a standby heat supply network circulating pump can be started.
In addition, a first pressure transmitter 15 for detecting the pressure in the pipeline is further arranged on the water outlet pipeline of the electrode boiler 10, the first pressure transmitter 15 is electrically connected with the decentralized control system, the first pressure transmitter 15 transmits the detected pressure value to the decentralized control system, and the decentralized control system is further used for controlling the standby heat supply network circulating pump 14 to be put into operation when the first pressure transmitter 15 detects that the pressure value in the water outlet pipeline of the electrode boiler 10 is lower than a set value. For example, when the first pressure transmitter 15 detects that the pressure value in the water outlet pipeline of the electrode boiler 10 is lower than 0.5MPa, it means that the circulating water pressure on the heat supply network side is insufficient, and the heat supply network circulating pump 14 which normally operates before may be in failure to stop operating, at this time, the distributed control system controls the standby heat supply network circulating pump 14 to be put into operation, so as to ensure that the heat supply of the whole system normally and stably operates, and further reduce the heat supply failure rate of the system.
In addition, the electrode boiler heating system further comprises a first group of thermal resistors for detecting the temperature of a motor stator winding of the heat supply network circulating pump 14, a second group of thermal resistors for detecting the temperature of a motor bearing of the heat supply network circulating pump 14 and a third group of thermal resistors for detecting the temperature of a bearing of the heat supply network circulating pump 14, the first group of thermal resistors, the second group of thermal resistors and the third group of thermal resistors are all electrically connected with the distributed control system to transmit detection results thereof to the distributed control system, and the distributed control system is further used for controlling the heat supply network circulating pump 14 to stop running when the detection result of any one of the first group of thermal resistors, the second group of thermal resistors and the third group of thermal resistors is abnormal, so that the heat supply network circulating pump 14 is prevented from being damaged more seriously, and the standby heat supply network circulating pump 14 is started to run at the same.
In addition, as is preferable, a filter 16 for filtering is further arranged on the water inlet pipeline of the booster pump group 11, the filter 16 is preferably a full-automatic filter, the filter 16 can filter out impurities in cold water supplied by a municipal heat supply network return water main pipe to prevent impurities from blocking the heat supply network circulating pump 14, and a driving motor of the filter 16 is electrically connected with the decentralized control system. In addition, the end of intaking and the play water end of filter 16 are provided with inlet valve and outlet valve respectively, just still be provided with the first differential pressure transmitter 17 that is used for detecting 16 import and export pressure differentials of filter between the end of intaking and the play water end of filter 16, first differential pressure transmitter 17, inlet valve and outlet valve all with distributed control system electric connection, first differential pressure transmitter 17 can transmit its testing result to distributed control system, distributed control system can also control inlet valve and outlet valve and open or close. The decentralized control system is used for controlling the water outlet valve of the filter 16 to close when the first differential pressure transmitter 17 detects that the pressure difference between the inlet and the outlet of the filter 16 is higher than a set value and the duration time exceeds a preset time, and starting self-cleaning sewage disposal. Once first differential pressure transmitter 17 detects that the inlet-outlet pressure difference of filter 16 is continuously higher than the set value, which means that filter 16 may be blocked, it is necessary to control the outlet valve to close to self-cleaning filter 16 to prevent more serious failure. As a further preferred, the electrode boiler heating system further comprises a bypass pipeline connected in parallel with the filter 16, a bypass valve is arranged on the bypass pipeline, the bypass valve is electrically connected with the distributed control system, the distributed control system can control the bypass valve to be opened or closed, the bypass valve is opened when the inlet valve and the outlet valve of the filter 16 are closed, and the bypass valve is closed when the inlet valve and the outlet valve are opened. Once the filter 16 fails, the decentralized control system can control the water inlet valve and the water outlet valve to be closed and control the bypass valve to be opened at the same time, so that cold water is introduced into the heat supply network circulating pump 14 from the bypass pipeline, the failed filter 16 is convenient to overhaul, and the normal and stable operation of the whole heat supply system is ensured.
In addition, the flow rate measuring device 12 employs any one of an ultrasonic flow meter, an electromagnetic flow meter, and an orifice plate. Preferably, the flow measuring device 12 includes a measuring orifice plate 121, the measuring orifice plate 121 is configured with a second differential pressure transmitter 122, the second differential pressure transmitter 122 is used for measuring the hot water flow output by the electrode boiler 10 in cooperation with the measuring orifice plate 121, and the second differential pressure transmitter 122 is electrically connected with the distributed control system. Preferably, a water outlet pipeline of the electrode boiler 10 is further provided with a temperature compensation thermal resistor 18 for detecting water temperature, the temperature compensation thermal resistor 18 is electrically connected with a distributed control system, and the distributed control system is further configured to perform water flow temperature compensation calculation according to a temperature detection result of the temperature compensation thermal resistor 18. Because the density and the temperature of water are related, the temperature needs to be introduced to measure the mass flow of the water, the functional relation between the mass flow and the temperature of the water is established, the water flow is further calculated, the temperature is detected by the temperature compensation thermal resistor 18 to carry out temperature compensation, and the accuracy of a hot water flow detection result is ensured.
In addition, the water inlet pipeline and the water outlet pipeline of the shell-and-tube heat exchanger 13 are both provided with isolation valves so as to overhaul the shell-and-tube heat exchanger 13 conveniently. The water inlet of the heat supply network circulating pump 14 is also provided with a local pressure gauge, the water outlet is provided with a local pressure gauge and a second pressure transmitter, the inlet of the filter 16 is also provided with the local pressure gauge, the outlet is provided with the local pressure gauge and the second pressure transmitter, and the second pressure transmitter is electrically connected with the decentralized control system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heating system of an electrode boiler is characterized in that,
the electrode boiler comprises an electrode boiler (10), a booster pump group (11), a flow measuring device (12) and a decentralized control system, wherein a water inlet pipeline of the electrode boiler (10) is communicated with a water outlet pipeline of the booster pump group (11), the water outlet pipeline of the electrode boiler (10) is communicated with a municipal heat supply network water supply main pipe, the water inlet pipeline of the booster pump group (11) is communicated with a municipal heat supply network return water main pipe, the flow measuring device (12) is arranged on a water outlet pipeline of the electrode boiler (10) and used for measuring the hot water flow output by the electrode boiler (10), the electrode boiler (10) comprises a plurality of shell-and-tube heat exchangers (13) which are arranged in parallel, the booster pump group (11) comprises at least one heat supply network circulating pump (14), the heat supply network circulating pump (14) is used for extracting cold water in the municipal heat supply network return water main pipe and pressurizing and conveying the cold water into the shell-, the hot water after heat exchange is circulated to a municipal heat supply network water supply main pipe through a water outlet pipeline of the electrode boiler (10);
the booster pump group (11) also comprises a bypass pipeline which is connected with the heat supply network circulating pump (14) in parallel, a bypass valve is arranged on the bypass pipeline, the electrode boiler (10), the flow measuring device (12), the heat supply network circulating pump (14) and the bypass valve are all electrically connected with the decentralized control system, the decentralized control system is used for controlling the working states of the electrode boiler (10), the heat supply network circulating pump (14) and the bypass valve, the decentralized control system is also used for controlling the bypass valve to be opened when the flow measuring device (12) detects that the flow of the hot water output by the electrode boiler (10) is lower than a first threshold value, and controlling the bypass valve to be closed when the flow measuring device (12) detects that the flow of the hot water output by the electrode boiler (10) is greater than a second threshold value or the heat supply network circulating pump (14) stops running.
2. Electrode boiler heating system according to claim 1,
the booster pump group (11) comprises two heat supply network circulating pumps (14) which are connected in parallel, one of the heat supply network circulating pumps operates normally, the other heat supply network circulating pump serves as a standby heat supply network, a water inlet valve is arranged at the water inlet end of each heat supply network circulating pump (14), a water outlet valve is arranged at the water outlet end, and the water inlet valve and the water outlet valve are both electrically connected with the decentralized control system.
3. The electrode boiler heating system according to claim 2,
the electrode boiler water outlet pipeline is characterized in that a first pressure transmitter (15) used for detecting pressure in the pipeline is further arranged on the water outlet pipeline of the electrode boiler (10), the first pressure transmitter (15) is electrically connected with the decentralized control system, and the decentralized control system is further used for controlling the standby heat supply network circulating pump (14) to be put into operation when the first pressure transmitter (15) detects that the pressure value in the water outlet pipeline of the electrode boiler (10) is lower than a set value.
4. Electrode boiler heating system according to claim 1,
still including the first group's thermal resistance that is used for detecting the motor stator winding temperature of heat supply network circulating pump (14), the second group's thermal resistance that is used for detecting the motor bearing temperature of heat supply network circulating pump (14) and the third group's thermal resistance that is used for detecting the bearing temperature of heat supply network circulating pump (14), first group's thermal resistance, second group's thermal resistance and third group's thermal resistance all with distributed control system electric connection, distributed control system still is used for controlling when the detection result of any one in first group's thermal resistance, second group's thermal resistance and the third group's thermal resistance appears unusually heat supply network circulating pump (14) stall.
5. Electrode boiler heating system according to claim 1,
the water inlet pipeline of the booster pump set (11) is also provided with a filter (16) for filtering, and a driving motor of the filter (16) is electrically connected with the distributed control system.
6. Electrode boiler heating system according to claim 5,
the filter is characterized in that a water inlet end and a water outlet end of the filter (16) are respectively provided with a water inlet valve and a water outlet valve, a first differential pressure transmitter (17) used for detecting the inlet-outlet pressure difference of the filter (16) is further arranged between the water inlet end and the water outlet end of the filter (16), the first differential pressure transmitter (17), the water inlet valve and the water outlet valve are electrically connected with a decentralized control system, the decentralized control system is used for controlling the water outlet valve of the filter (16) to be closed when the inlet-outlet pressure difference detected by the first differential pressure transmitter (17) is higher than a set value and the duration time exceeds preset time, and self-cleaning and pollution discharge are started.
7. The electrode boiler heating system according to claim 6,
the filter is characterized by further comprising a bypass pipeline connected with the filter (16) in parallel, a bypass valve is arranged on the bypass pipeline and electrically connected with the distributed control system, when the filter (16) is in a fault or maintenance state, the inlet valve and the outlet valve are closed, the bypass valve is opened, after the fault or maintenance state is relieved, the inlet valve and the outlet valve are opened, and the bypass valve is closed.
8. Electrode boiler heating system according to claim 1,
the flow rate measuring device (12) employs any one of an ultrasonic flow meter, an electromagnetic flow meter, and an orifice plate.
9. Electrode boiler heating system according to claim 8,
the flow measuring device (12) comprises a measuring orifice plate (121), the measuring orifice plate (121) is provided with a second differential pressure transmitter (122), the second differential pressure transmitter (122) is matched with the measuring orifice plate (121) and used for measuring the hot water flow output by the electrode boiler (10), and the second differential pressure transmitter (122) is electrically connected with the decentralized control system.
10. Electrode boiler heating system according to claim 9,
the water outlet pipeline of the electrode boiler (10) is also provided with a temperature compensation thermal resistor (18) used for detecting water temperature, the temperature compensation thermal resistor (18) is electrically connected with a distributed control system, and the distributed control system is further used for carrying out water flow temperature compensation calculation according to a temperature detection result of the temperature compensation thermal resistor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020693868.5U CN212644739U (en) | 2020-04-29 | 2020-04-29 | Electrode boiler heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020693868.5U CN212644739U (en) | 2020-04-29 | 2020-04-29 | Electrode boiler heating system |
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| Publication Number | Publication Date |
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| CN212644739U true CN212644739U (en) | 2021-03-02 |
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| CN202020693868.5U Active CN212644739U (en) | 2020-04-29 | 2020-04-29 | Electrode boiler heating system |
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| CN (1) | CN212644739U (en) |
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