CN113483379A - Heat storage circulation system - Google Patents
Heat storage circulation system Download PDFInfo
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- CN113483379A CN113483379A CN202110748410.4A CN202110748410A CN113483379A CN 113483379 A CN113483379 A CN 113483379A CN 202110748410 A CN202110748410 A CN 202110748410A CN 113483379 A CN113483379 A CN 113483379A
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- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
- F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a heat storage circulating system, which comprises a heat storage water tank, a plate heat exchanger, a heat supply tail end, a water pump frequency conversion system, a main control system and a direct supply system, wherein a primary network circulating system is formed between an electric boiler and the heat storage water tank, and a secondary network circulating system is formed between the heat storage water tank and the plate heat exchanger, and between the plate heat exchanger and the heat supply tail end; utilize evening low ebb electricity, the medium heating in the heat accumulation water tank is given to the electric boiler, and the temperature probe detects then transmits for main control system through return water temperature, and main control system control water pump frequency conversion system, water pump frequency conversion system control circulating pump rotational speed reach constant temperature energy-conserving effect. The electric boiler is started by utilizing the off-peak electricity time to heat the heat storage water tank, so that the operation cost is reduced; when the heat storage water tank is heated to reach the preset temperature, the electric boiler stops heating, and during the heat supply period, the hot water circulating pump is started automatically to provide a heat source for the heat supply tail end.
Description
Technical Field
The invention belongs to the field of heating and heat storage, and particularly relates to a heat storage circulating system.
Background
An electric boiler is also called an electric heating electric boiler and an electric heating electric boiler, and is an electric boiler device which takes electric power as energy and converts the electric power into heat energy, so that steam, high-temperature water or an organic heat carrier with certain heat energy is output outwards through conversion of the electric boiler. The electric boiler is an electric boiler device which takes electric power as energy and converts the electric power into heat energy, so that heat carriers such as steam, high-temperature water and the like with certain heat energy are output outwards through conversion of the electric boiler. The existing electric boiler heating mode is directly heating type heating, resources are wasted, peak and valley electricity prices cannot be reasonably utilized, and operation cost is increased.
Because the direct energy of the electric boiler is electric energy, the electric boiler has larger power consumption, which is not beneficial to saving electric energy. In addition, especially when the electricity consumption is in a peak period, such as from 6 o 'clock in the day to 21 o' clock in the evening, the load of the electric power supply system is easy to increase due to the use of the electric boiler, which is not beneficial to ensuring the electricity consumption safety.
Disclosure of Invention
The application provides a heat accumulation circulation system utilizes millet electricity price to heat for the heat storage water tank, reduces the running cost.
In order to achieve the aim, the invention relates to a heat storage circulating system, which comprises an electric boiler and is characterized in that: the heat storage circulating system comprises a heat storage water tank, a plate heat exchanger, a heat supply tail end, a water pump frequency conversion system, a main control system and a direct supply system, wherein a primary network circulating system is formed between the electric boiler and the heat storage water tank, and a secondary network circulating system is formed between the heat storage water tank and the plate heat exchanger, and between the plate heat exchanger and the heat supply tail end;
the water pump variable frequency control system is connected with the secondary network circulating system and is used for controlling the speed regulation and the start and stop of the circulating water pump from the heat storage water tank to the plate heat exchanger and from the plate heat exchanger to the heating tail end;
the direct supply system is characterized in that a primary network circulating system is directly connected with a secondary network circulating system, a communicating control valve is arranged in the middle of the direct supply system, the tail end heat supply is not influenced when an electric boiler system breaks down, the direct supply system is connected with a heat storage water tank, the heat storage water tank is connected with a plate heat exchanger, the plate heat exchanger is connected with the heat supply tail end, a hot water circulating pump is arranged between the electric boiler and the heat storage water tank, the heat storage water tank is heated by utilizing valley electricity at night, the hot water circulating pump is arranged between the heat storage water tank and the plate heat exchanger, and the hot water circulating pump is arranged at the tail end of the plate heat exchanger and the heat supply;
the electric boiler, the heat storage water tank and the plate heat exchanger are all provided with a water outlet and a water return port, the water outlet is provided with a control valve, and the water outlets of the electric boiler and the plate heat exchanger are also provided with automatic exhaust valves;
a hot water circulating pump is arranged between the electric boiler water return port and the heat storage water tank; a hot water circulating pump is arranged between the water return port of the heat storage water tank and the plate heat exchanger, a hot water circulating pump is arranged between the water return port of the plate heat exchanger and the heating tail end, shock-proof throats are arranged at two ends of the hot water circulating pump, and a check valve is further arranged at the right end of the shock-proof throat on the right side of each hot water circulating pump;
the water charging system and the heat supply end are installed with a constant-pressure tank for constant-pressure water charging, and the water charging system simultaneously charges water for the heat storage water tank.
Preferably, two control valves are arranged between the electric boiler and the heat storage water tank, and an automatic exhaust valve is arranged between the two control valves.
Preferably, two control valves are arranged between the heat storage water tank and the plate heat exchanger.
Preferably, a control valve is arranged between the plate heat exchanger and the heat supply tail end, one end of the control valve is connected with a water outlet of the plate heat exchanger, and the other end of the control valve is connected with an automatic exhaust valve.
Preferably, six control valves and two hot water circulating pumps are arranged between the heat supply tail end and the water return port of the plate heat exchanger, and the two hot water circulating pumps are connected in parallel.
Preferably, six control valves and two hot water circulating pumps are arranged between the plate heat exchanger and a water return port of the heat storage water tank, and the two hot water circulating pumps are connected in parallel.
Preferably, six control valves and two hot water circulating pumps are arranged between the heat storage water tank and the electric boiler water return port, and the two hot water circulating pumps are connected in parallel.
Preferably, a plurality of pressure meters and a plurality of thermometers are arranged in the heat storage circulation system, and the pressure meters and the thermometers are arranged on one side of any control valve.
According to the technical scheme, the invention has the advantages and beneficial effects that: the electric boiler is started by utilizing the valley power time to heat the heat storage water tank, and the valley power price is utilized to heat the heat storage water tank, so that the operation cost is reduced; when the heat storage water tank is heated to reach the preset temperature, the electric boiler stops heating, and during the heat supply period, the hot water and hot water circulating pump is started to provide a heat source for the heat supply tail end.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic view of the overall structure of the present invention;
the reference numbers are as follows: 1. the system comprises an electric boiler 2, a heat storage water tank 3, a plate heat exchanger 4, a heating terminal 5, a control valve 6, an automatic exhaust valve 7, a water replenishing water tank 8, a hot water circulating pump 9, a check valve 10, a constant pressure tank 11, a shock absorption throat 12, a thermometer 13, a pressure gauge 14, an overflow pipe 15, a water replenishing pump 16 and a Y-shaped filter.
Detailed Description
Referring to fig. 1, a schematic diagram of a thermal storage cycle system is shown. The invention relates to a heat storage circulating system which comprises an electric boiler, wherein a hot water circulating pump 8 is arranged between the electric boiler 1 and a heat storage water tank 2, the heat storage water tank is heated by utilizing valley electricity at night, the hot water circulating pump is arranged between the heat storage water tank and a plate heat exchanger 3, the hot water circulating pump is arranged between the plate heat exchanger and a heat supply tail end 4, and the heat storage water tank and the plate heat exchanger, the plate heat exchanger and the heat supply tail end hot water circulating pump are started during heat supply. Control valves 5 are installed at the water outlet 11 of the electric boiler and the water return port 12 of the electric boiler, control valves are installed at the water outlet and the water return port of the heat storage water tank, a hot water and hot water circulating pump is installed between the water return of the electric boiler and the heat storage water tank, a shock absorption throat and a control valve are installed at two ends of the hot water circulating pump, an automatic exhaust valve 6 is installed at the water outlet of the electric boiler, and the automatic exhaust valve 6 is located between the two control valves. And a hot water circulating pump is arranged between the water return port of the heat storage water tank and the plate heat exchanger, and a shock absorption throat 11 and a control valve 5 are arranged at two ends of the hot water circulating pump. A hot water circulating pump is arranged at the water return port and the heating tail end of the plate heat exchanger, and a control valve 5 and an automatic exhaust valve 6 are arranged at the water outlet of the plate heat exchanger. A hot water circulating pump is installed between the return water end and the heating end of the plate heat exchanger, the two ends of the hot water circulating pump are both provided with a shock absorption throat 11 and a control valve 4, one end of the shock absorption throat 11 on one side is provided with a check valve 9, and the heating end can be in the form of a radiator or a geothermal coil.
The water supplementing system comprises a water supplementing water tank 7 and a constant pressure tank 10, a water supplementing pump is arranged between the water supplementing water tank 7 and the constant pressure tank 10, the constant pressure tank is connected with a heat storage water tank, and an overflow pipe is arranged on one side of the water supplementing water tank; one side of the air exhaust valve 6 on the primary network circulating system and the secondary network circulating system pipelines is sequentially provided with a thermometer 12 and a pressure gauge 13, the pressure gauge can be an electric contact pressure gauge, and after the electric contact pressure gauge is installed on the pipelines, a water replenishing pump 15 is controlled through the pressure set by the electric contact pressure gauge, so that the pipelines and the electric boiler are prevented from being in fault due to water shortage.
Heat accumulation circulation system including heat storage water tank, plate heat exchanger, heat supply end, water pump frequency conversion system, main control system and direct supply system, constitute once net circulation system between electric boiler and the heat storage water tank, return water piping erection circulation external member between electric boiler and the heat storage water tank, the circulation external member includes: a hot water circulating pump, a check valve, a pressure gauge, a thermometer and a control valve; the water outlet pipeline is provided with an exhaust valve, a thermometer and a pressure gauge; a secondary network circulating system is formed among the heat storage water tank, the plate heat exchanger and the heat supply tail end; return water piping erection circulation external member between heat storage water tank and the plate heat exchanger, the circulation external member includes: the device comprises a hot water circulating pump, a check valve, a flexible connection, a pressure gauge, a thermometer and a control valve; the water outlet pipeline is provided with an exhaust valve, a thermometer and a pressure gauge; plate heat exchanger and terminal return water pipe installation circulation external member between dividing the jar, the circulation external member includes: hot water circulating pump, check valve, flexible coupling, Y type filter 16, flowmeter, manometer, thermometer, control valve, temperature sensor, pressure sensor, outlet conduit installation discharge valve, manometer, thermometer, Y type filter is installed between plate heat exchanger and heat supply end.
The working principle of the invention is that the electric boiler is started to heat the heat storage water tank by utilizing the off-peak electricity at night, so as to store heat, and the heat stored in the heat storage water tank provides heat for the heating tail end through the plate heat exchanger. The control valve that uses among the heat accumulation circulation system is the control flap of same type, hot water circulating pump both ends installation throat and the control valve of moving away to avoid possible earthquakes, wherein one side throat's of moving away to avoid possible earthquakes one end still is provided with the check valve, and the throat effect of moving away to avoid possible earthquakes is for alleviateing the vibration that the water pump operation caused, and it is convenient that control flap mainly is for maintenance or change the water pump afterwards. The pressure meter and the thermometer can be arranged on one side of any control valve and used for monitoring the pressure and the temperature of the branch where each control valve is located at any time so as to realize the monitoring of the heat storage circulation system at any time.
The primary network circulating system is used for setting the optimal state of the electric boiler control system by utilizing the electricity consumption time and the required heat storage medium temperature in the valley period, the electric boiler control system can instruct the electric boiler heating system and the circulating system to start or stop, the energy-saving effect is achieved, the required temperature of the heat storage medium is met, and the volume and the medium temperature of the heat storage water tank can meet the heating requirement of the electricity consumption time except the valley electricity.
The secondary network circulating system is used for storing heat to reach a medium with a required temperature by utilizing the off-peak electricity time of the primary network circulating system, and the circulating system works simultaneously with the heat storage water tank, the plate heat exchanger and the heat supply tail end to achieve the purpose of heating through the heat exchange of the medium with the heat storage water tank and the medium with the heat supply tail end. The water supplementing system has the function of supplementing clean softened water to the primary network circulating system and the secondary network circulating system in time, and system faults caused by water shortage are prevented.
The water pump frequency conversion system mainly comprises electronic elements such as a frequency converter, a voltmeter, an ammeter, a mutual inductor, a fuse, a circuit breaker, an alternating current contactor, a relay and a liquid crystal display; the water pump frequency conversion system is used for improving the starting mode of the three-phase alternating current motor, achieving smooth control of the rotating speed of the water pump motor, supplying water at constant voltage and reducing equipment impact. The main control system comprises electronic elements such as a human-computer interface display screen, a PLC host, a power supply module, an expansion module, an industrial switch, a circuit breaker, a transmitter and a sensor, and is mainly used for receiving a pressure sensor, a temperature sensor and a flowmeter, checking and calculating signals transmitted to control a water replenishing system, a water pump frequency conversion system and the whole circulating system, and the whole heating circulating system is linked to achieve the heating constant temperature and the most energy-saving state.
The direct supply system is characterized in that a water return pipe and a water outlet of an electric boiler are directly welded to the front end of a water distribution cylinder of a secondary network circulating system through pipelines, a control valve is installed at a pipeline joint, a Y-shaped filter 16, a thermometer and a pressure gauge are installed on a water return pipeline, and an exhaust valve, a thermometer and a pressure gauge are installed on a water outlet pipeline; the direct supply system mainly has the advantages that the system is prevented from being stopped and heated for a long time due to the fact that faults occur in the primary network circulating system and the secondary network circulating system of the heat storage system, the direct supply system can directly supply heat to the tail end without passing through the primary network circulating system and the secondary network circulating system, and time is created for system maintenance. The direct supply system mainly comprises a pipeline and a communication control valve, a primary network circulating system and a secondary network circulating system are welded with a flange plate through the pipeline, the control valve is installed in the middle of the flange plate, the valve is in a closed state under normal conditions, and if the plate fails, the communication control valve is opened, so that high-temperature water of the primary network circulating system directly passes through the secondary network circulating system to reach the tail end of heating.
The invention relates to a heat storage circulating system, which takes an electric boiler as a heat source, and utilizes the electricity price difference of the peak period and the valley period of power supply to turn on the electric boiler to heat a heat storage water tank in the valley period of power supply, store heat, turn off the electric boiler in the peak period of power supply, release the heat stored in the heat storage water tank and provide heat for a user at the heat supply end. The heating system using the low-ebb electricity as the energy source not only can reduce the operation cost for users, but also has positive effect on the increasingly serious peak-valley difference peak clipping and valley filling of the power grid, has no pollution emission, and has very obvious environment protection effect.
When in the power consumption valley period, like daytime, electric power supply system is in low-order running state, and the accessible is for the heat storage water tank heating this moment, is about to electric energy conversion into heat energy, because be in the power consumption valley period this moment, so can not bring too big load for electric power system, utilizes the valley electricity time to start electric boiler, gives the heat storage water tank heating, when the heat storage water tank heats the predetermined temperature, electric boiler stops the heating. And during the heat supply period, the hot water circulating pump is started to provide a heat source for the heat supply tail end.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A heat storage cycle system comprises an electric boiler, and is characterized in that: the heat storage circulating system comprises a heat storage water tank, a plate heat exchanger, a heat supply tail end, a water pump frequency conversion system, a main control system and a direct supply system, wherein a primary network circulating system is formed between the electric boiler and the heat storage water tank, and a secondary network circulating system is formed between the heat storage water tank and the plate heat exchanger as well as between the plate heat exchanger and the heat supply tail end;
the water pump frequency conversion control system is connected with the secondary network circulating system and is used for controlling the revolution and the start and stop of the circulating water pump from the heat storage water tank to the plate heat exchanger and from the plate heat exchanger to the heating tail end;
the direct supply system is characterized in that a primary network circulating system is directly connected with a secondary network circulating system, a communication control valve is arranged in the middle of the direct supply system, and the tail end heat supply is not influenced when the system fails; the electric boiler is connected with a heat storage water tank, the heat storage water tank is connected with a plate heat exchanger, the plate heat exchanger is connected with a heat supply tail end, a hot water circulating pump is arranged between the electric boiler and the heat storage water tank, the heat storage water tank is heated by utilizing valley electricity at night, the hot water circulating pump is arranged between the heat storage water tank and the plate heat exchanger, and the hot water circulating pump is arranged at the plate heat exchanger and the heat supply tail end;
the electric boiler, the heat storage water tank and the plate heat exchanger are all provided with a water outlet and a water return port, the water outlet is provided with a control valve, and the water outlets of the electric boiler and the plate heat exchanger are also provided with automatic exhaust valves;
a hot water circulating pump is arranged between the electric boiler water return port and the heat storage water tank; a hot water circulating pump is arranged between the water return port of the heat storage water tank and the plate heat exchanger, a hot water circulating pump is arranged between the water return port of the plate heat exchanger and the heating tail end, shock-proof throats are arranged at two ends of the hot water circulating pump, and a check valve is further arranged at the right end of the shock-proof throat on the right side of each hot water circulating pump;
the water charging system and the heat supply end are installed with a constant-pressure tank for constant-pressure water charging, and the water charging system simultaneously charges water for the heat storage water tank.
2. A thermal storage cycle system according to claim 1, wherein: two control valves are arranged between the water outlet of the electric boiler and the heat storage water tank, and an automatic exhaust valve is arranged between the two control valves.
3. A thermal storage cycle system according to claim 2, wherein: two control valves are arranged between the water outlet of the heat storage water tank and the plate heat exchanger.
4. A thermal storage cycle system according to claim 3, wherein: a control valve is arranged between the plate heat exchanger and the heat supply tail end, one end of the control valve is connected with a water outlet of the plate heat exchanger, and the other end of the control valve is connected with an automatic exhaust valve.
5. A thermal storage cycle system according to claim 1, wherein: six control valves and two hot water circulating pumps are arranged between the heat supply end and the water return port of the plate heat exchanger, and the two hot water circulating pumps are connected in parallel.
6. A thermal storage cycle system according to claim 5, wherein: six control valves and two hot water and hot water circulating pumps are arranged between the plate heat exchanger and a water return port of the heat storage water tank, and the two hot water circulating pumps are connected in parallel.
7. A thermal storage cycle system according to claim 6, wherein: six control valves and two hot water and hot water circulating pumps are arranged between the heat storage water tank and the electric boiler water return port, and the two hot water circulating pumps are connected in parallel.
8. A thermal storage cycle system according to claim 1, wherein: the heat storage circulation system is internally provided with a plurality of pressure meters and a plurality of thermometers, and the pressure meters and the thermometers are arranged on one side of any control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748410.4A CN113483379A (en) | 2021-07-02 | 2021-07-02 | Heat storage circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748410.4A CN113483379A (en) | 2021-07-02 | 2021-07-02 | Heat storage circulation system |
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| CN113483379A true CN113483379A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110748410.4A Pending CN113483379A (en) | 2021-07-02 | 2021-07-02 | Heat storage circulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127136A (en) * | 2022-05-25 | 2022-09-30 | 华电电力科学研究院有限公司 | Energy storage and heat supply system and method based on renewable energy heating power station |
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|---|---|---|---|---|
| CN102734855A (en) * | 2011-03-31 | 2012-10-17 | 施杰 | Electric boiler heat-accumulating type heating system |
| KR101589417B1 (en) * | 2015-09-08 | 2016-01-27 | 백진순 | Hot water heating systems using thermal oil as heat accumulation substance |
| CN205991539U (en) * | 2016-08-12 | 2017-03-01 | 大连冬乐热能设备有限公司 | A kind of heat accumulating type electric boiler heating system |
| CN106652744A (en) * | 2016-11-25 | 2017-05-10 | 天津城建大学 | Central heating comprehensive experiment system |
| CN108061347A (en) * | 2017-12-27 | 2018-05-22 | 竺传红 | A kind of air-conditioning heat-exchange system and its application |
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2021
- 2021-07-02 CN CN202110748410.4A patent/CN113483379A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734855A (en) * | 2011-03-31 | 2012-10-17 | 施杰 | Electric boiler heat-accumulating type heating system |
| KR101589417B1 (en) * | 2015-09-08 | 2016-01-27 | 백진순 | Hot water heating systems using thermal oil as heat accumulation substance |
| CN205991539U (en) * | 2016-08-12 | 2017-03-01 | 大连冬乐热能设备有限公司 | A kind of heat accumulating type electric boiler heating system |
| CN106652744A (en) * | 2016-11-25 | 2017-05-10 | 天津城建大学 | Central heating comprehensive experiment system |
| CN108061347A (en) * | 2017-12-27 | 2018-05-22 | 竺传红 | A kind of air-conditioning heat-exchange system and its application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127136A (en) * | 2022-05-25 | 2022-09-30 | 华电电力科学研究院有限公司 | Energy storage and heat supply system and method based on renewable energy heating power station |
| CN115127136B (en) * | 2022-05-25 | 2023-07-04 | 华电电力科学研究院有限公司 | Energy storage and heat supply system and method based on renewable energy source heating power station |
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