CN210663028U - Inorganic phase-change heat-storage type electric heating stove - Google Patents
Inorganic phase-change heat-storage type electric heating stove Download PDFInfo
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- CN210663028U CN210663028U CN201921040545.XU CN201921040545U CN210663028U CN 210663028 U CN210663028 U CN 210663028U CN 201921040545 U CN201921040545 U CN 201921040545U CN 210663028 U CN210663028 U CN 210663028U
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Abstract
The utility model discloses an inorganic phase transition heat accumulation formula electric heating stove, including holding water box, inorganic phase transition heat accumulation pipe, electrical heating unit, mix water temperature control unit and electrical control unit, the inside equipartition of holding water box has inorganic phase transition heat accumulation pipe, and electrical heating unit sets up at the inside center of holding water box, mixes water temperature control unit setting between holding water box's inlet tube and outlet pipe, goes out the water temperature through mixing water temperature control unit control electric heating, and holding water box still is provided with electrical control unit outward, through the inside heat accumulation degree of electrical control unit control holding water box. In this way, the utility model discloses inorganic phase change heat accumulation formula electric heating stove has independent heating cycle and exothermic cycle, can the independent running also can superpose the operation, can adapt to three kinds of different work condition: the inorganic phase change heat storage type electric heating system has the advantages of being capable of achieving low cost and long service life under the pure heat storage working condition, the pure heat release working condition and the simultaneous storage and discharge working condition.
Description
Technical Field
The utility model relates to a phase change heat accumulation technical field especially relates to an inorganic phase change heat accumulation formula electric heating stove.
Background
The heat accumulating type electric heating stove is one device to convert electric energy into heat energy for storage in certain time and to release the heat energy for heating. The electric energy can adopt solar photovoltaic power generation on daytime and the last millet electricity of evening, can make photovoltaic power generation's discontinuity become the continuous use or the controllable use of heating through the use of heat accumulation formula electric heating stove to and realize that the peak clipping of electric wire netting power consumption fills the millet, improves the utilization efficiency of the energy.
The heat storage material can be divided into sensible heat storage and latent heat storage according to the division of the heat storage medium.
Sensible heat storage is generally divided into water storage and solid storage: the cost of water storage is the lowest and the safest, but because the sensible heat of limited temperature difference can be only taken, the defects of small heat storage density per unit volume, large occupied area and the like are brought.
The solid storage realizes large temperature difference sensible heat storage by utilizing the characteristics of large temperature change and small volume change of solid materials (magnesia bricks, ceramics, cement and the like), and has the advantages of large heat storage density per unit volume and low manufacturing cost; however, the following disadvantages also exist: (1) high-temperature heat storage at the temperature of over 600 ℃ cannot ensure the operation safety and reliability of equipment; (2) air heat exchange is adopted, so that the heat exchange temperature difference is large, and the effective utilization rate of heat energy is low; (3) the system heat loss is extremely large.
Latent heat storage refers to a heat storage mode which is accompanied by a large amount of heat absorption and heat release when a phase change energy storage material undergoes solid-liquid phase change at a specific temperature (phase change temperature), has the characteristics of large heat storage density, almost isothermal temperature in the heat absorption and heat release processes and the like, has the advantages of small volume, small heat storage/heat release temperature difference and the like compared with water storage and solid storage, and can be applied to space-time adjustment of heat flow density and improve the utilization efficiency of energy.
The existing phase change materials can be divided into organic phase change materials, inorganic phase change materials and composite phase change materials. The inorganic phase change material comprises crystalline hydrated salt, molten salt, metal alloy and other inorganic matters, wherein the crystalline hydrated salt and the molten salt are most widely applied, and have the advantages of cheap material, high heat storage density and the like. However, the inorganic phase-change material has the defects of strong corrosivity, large volume change in the solid-liquid phase-change process, poor heat-conducting property and the like, and brings about the defects of high manufacturing cost, short service life and the like of an electric heating heat storage device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an inorganic phase change heat accumulation formula electric heating stove, has independent heating cycle and exothermic cycle, can the independent running also can superpose the operation, can adapt to three kinds of different work condition: the inorganic phase change heat storage type electric heating system has the advantages of being capable of achieving low cost and long service life under the pure heat storage working condition, the pure heat release working condition and the simultaneous storage and discharge working condition.
In order to solve the technical problem, the utility model discloses a technical scheme be: provides an inorganic phase-change heat storage type electric heating stove, which comprises a heat preservation water tank, inorganic phase-change heat storage pipes, an electric heating unit, a mixed water temperature control unit and an electric control unit, wherein the inorganic phase-change heat storage pipes are uniformly distributed in the heat preservation water tank, the electric heating unit is arranged at the center in the heat preservation water tank,
the water mixing and temperature controlling unit is arranged between a water inlet pipe and a water outlet pipe of the heat preservation water tank, the temperature of the electric heating outlet water is controlled through the water mixing and temperature controlling unit, the heat preservation water tank is also externally provided with an electric control unit, and the heat storage degree in the heat preservation water tank is controlled through the electric control unit.
In a preferred embodiment of the utility model, the heat preservation water tank comprises an inner container, an outer container and a heat preservation layer arranged between the inner container and the outer container, the heat preservation water tank is also provided with a water inlet, a water outlet and a flange port,
the water inlet is positioned at the upper part of the heat preservation water tank, the water inlet pipe penetrates through the outer container and the inner container and is welded and connected with the flow guide ring at the upper part of the flow guide pipe in the central electric heating unit of the heat preservation water tank, and the water inlet pipe penetrates through the inner container of the heat preservation water tank and is sealed by welding;
the water outlet is positioned at the lower part of the heat preservation water tank, the water outlet pipe penetrates through the outer container and the inner container and then extends to the central position of the bottom of the inner cavity of the heat preservation water tank and is provided with a hole downwards, and the water outlet pipe penetrates through the inner container of the heat preservation water tank and is sealed by welding;
the flange opening is positioned at the top of the heat preservation water tank and comprises flange bolt holes, a flange cover plate, a sealing ring and connecting bolts, the connecting bolts penetrate through the flange bolt holes on the two sides of the flange cover plate to be fixed, the sealing ring is also arranged on the inner side of the flange cover plate,
the center of the flange cover plate is also provided with a mounting hole for mounting an electric heating pipe, the mounting hole is an internal thread hole or a flange hole, and the electric heating pipe is connected with the flange opening by adopting threaded connection or flange connection.
The utility model discloses a preferred embodiment, the inside heat accumulation pipe support that is provided with of holding water box, inorganic phase transition heat accumulation pipe pass through the heat accumulation pipe support and support evenly arrange in holding water box.
In a preferred embodiment of the present invention, the inorganic phase change heat storage tube includes an organic plastic tube, an inorganic phase change material and a tube cap, the organic plastic tube is filled with the inorganic phase change material, and the tube cap is welded and fixed to both ends of the organic plastic tube.
In a preferred embodiment of the present invention, the heat storage pipe frame includes an upper orifice plate, a lower orifice plate and a support column, the upper orifice plate and the lower orifice plate are horizontally arranged inside the heat preservation water tank, and the support column is arranged at the bottom of the upper orifice plate and the lower orifice plate for supporting.
In a preferred embodiment of the utility model, the electric heating unit comprises a flow guide pipe, an electric heating pipe and a flow guide ring, the flow guide pipe is positioned at the axial center straight cylinder position of the inner cavity of the heat preservation water tank, the upper and lower openings of the flow guide pipe,
the lower part of the electric heating pipe is inserted in the flow guide pipe, a nickel-chromium resistance heating wire is arranged in the electric heating pipe inserted in the flow guide pipe, the flow guide ring is arranged at the top of the flow guide pipe, and the flow guide ring and the flow guide pipe are concentrically arranged and used for water inflow and flow guide.
The utility model discloses a preferred embodiment, mix water temperature control unit and include bypass flow control valve, electronic two-way valve, return water temperature probe and connect the water pipe, return water temperature probe sets up between inlet tube and outlet pipe, and the inlet tube tip is provided with electronic two-way valve, through being connected the water pipe intercommunication between inlet tube and the outlet pipe, forms the bypass pipeline, is provided with bypass flow control valve on the bypass pipeline.
In a preferred embodiment of the present invention, the electrical control unit comprises an earth leakage protection switch, an AC contactor, a microcomputer control main board, a temperature measuring sensor and a dry-burning protection switch,
the temperature sensor is arranged in the heat preservation water tank, the microcomputer control mainboard is electrically connected with the temperature sensor and the alternating current contactor, the microcomputer control mainboard is also connected with the leakage protection switch and the dry burning protection switch in a control mode, and the leakage protection switch is connected to the power input end of the electrical control unit.
In a preferred embodiment of the present invention, the inorganic phase-change heat storage type electric heating stove realizes heating cycle and heat release cycle by using water as heat exchange medium.
The utility model has the advantages that: the utility model discloses inorganic phase change heat accumulation formula electric heating stove has independent heating cycle and exothermic cycle, can the independent running also can superpose the operation, can adapt to three kinds of different work condition: the inorganic phase change heat storage type electric heating system has the advantages of being capable of achieving low cost and long service life under the pure heat storage working condition, the pure heat release working condition and the simultaneous storage and discharge working condition.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural view of a preferred embodiment of the inorganic phase-change heat storage type electric heating stove of the present invention;
fig. 2 is a schematic structural view of an inorganic phase change heat storage pipe in the inorganic phase change heat storage type electric heating furnace of the present invention;
fig. 3 is a schematic structural view of a heat storage pipe frame and an electric heating unit in the inorganic phase-change heat storage type electric heating furnace of the present invention;
fig. 4 is a schematic structural view of a mixed water temperature control unit in the inorganic phase-change heat storage type electric heating furnace of the present invention;
fig. 5 is a control schematic diagram of a mixed water temperature control unit in the inorganic phase-change heat storage type electric heating furnace of the utility model;
fig. 6 is a control schematic diagram of an electrical control unit in the inorganic phase-change heat-storage electric heating furnace of the present invention;
the parts in the drawings are numbered as follows: 100. the heat-insulating water tank comprises a heat-insulating water tank body, 110, an inner container, 120, an outer container, 130, a heat-insulating layer, 140, a water inlet, 150, a water outlet, 160, a flange port, 161, a flange bolt hole, 162, a flange cover plate, 163, a sealing ring, 164, a connecting bolt, 165, a mounting hole, 170, a water inlet pipe, 180, a water outlet pipe, 190, a temperature-measuring blind pipe, 200, an inorganic phase-change heat storage pipe, 210, an organic plastic pipe, 220, a pipe cap, 230, an inorganic phase-change material, 300, a heat storage pipe frame, 310, an upper orifice plate, 320, a lower orifice plate, 330, a support column, 400, an electric heating unit, 410, a flow guide pipe, 420, an electric heating pipe, 430, a flow guide ring, 500, a mixed water temperature control unit, 510, a bypass flow regulating valve, 520, an electric two-way valve, 530, a return water temperature measuring probe, 540, a connecting, 640. temperature measurement sensor 650, dry combustion protection switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 6, an embodiment of the present invention includes:
the utility model provides an inorganic phase change heat accumulation formula electric heating stove, includes holding water box 100, inorganic phase change heat accumulation pipe 200, electrical heating unit 400, mixes water temperature control unit 500 and electrical control unit 600, and the inside equipartition of holding water box 100 has inorganic phase change heat accumulation pipe 200, and electrical heating unit 400 sets up at the inside center of holding water box 100.
The mixed water temperature control unit 500 is arranged between the water inlet pipe and the water outlet pipe of the heat preservation water tank 100, the temperature of the electric heating outlet water is controlled through the mixed water temperature control unit 500, the heat preservation water tank 100 is further provided with an electric control unit 600, and the heat storage degree in the heat preservation water tank 100 is controlled through the electric control unit 600.
The heat preservation water tank 100 comprises an inner container 110, an outer container 120 and a heat preservation layer 130 arranged between the inner container 110 and the outer container 120, the heat preservation water tank 100 is also provided with a water inlet 140, a water outlet 150 and a flange port 160,
the water inlet 140 is located at the upper part of the heat preservation water tank 100, the water inlet pipe 170 penetrates through the outer liner 120 and the inner liner 110 to be welded with the flow guide ring at the upper part of the flow guide pipe in the central electric heating unit 400 of the heat preservation water tank 100, and the position of the water inlet pipe 170 penetrating through the inner liner 110 of the heat preservation water tank 100 is provided with a welding sealing structure.
The water outlet 150 is located at the lower part of the heat preservation water tank 100, the water outlet pipe 180 passes through the outer container 120 and the inner container 110, extends to the central position of the bottom of the inner cavity of the heat preservation water tank 100 and is provided with a downward hole, and the water outlet pipe 180 passes through the inner container 110 of the heat preservation water tank 100 and is provided with a welding sealing structure.
The flange opening 160 is located at the top of the heat preservation water tank 100, the flange opening 160 includes a flange bolt hole 161, a flange cover plate 162, a sealing ring 163 and a connecting bolt 164, the connecting bolt 164 passes through the flange bolt holes 161 on two sides of the flange cover plate 162 to be fixed, and the sealing ring 163 is further arranged on the inner side of the flange cover plate 162.
The center of the flange cover plate 162 is further provided with a mounting hole 165 for mounting an electric heating pipe, the mounting hole 165 is an internal thread hole or a flange hole, and the electric heating pipe is connected with the flange opening 160 through threads or a flange.
The heat storage pipe support 300 is arranged in the heat preservation water tank 100, and the inorganic phase change heat storage pipes 200 are supported by the heat storage pipe support 300 and are evenly distributed in the heat preservation water tank 100.
The inorganic phase-change heat storage tube 200 comprises an organic plastic tube 210, an inorganic phase-change material 230 and a tube cap 220, wherein the organic plastic tube 210 is filled with the inorganic phase-change material 230, and the tube cap 220 is welded and fixed at two ends of the organic plastic tube 210.
The manufacturing steps of the inorganic phase-change heat storage tube 200 are as follows: a. one end of the organic plastic pipe 210 and the pipe cap 220 are welded by hot melting and are vertically placed, and the opening is upward; b. filling the prepared inorganic phase change energy storage material 230 liquid from the upper opening of the organic plastic pipe 21; c. crystallizing the electrodeless phase change energy storage material 230 into a solid by water cooling or air cooling; d. the upper opening of the organic plastic pipe 210 and the pipe cap 220 are welded by thermal fusion, thereby completing the manufacture of the inorganic phase-change heat storage pipe 200.
The organic plastic pipe 210 is made of PET, PE, PP, PS, PA, ABS, etc. and is drawn by an extrusion process.
The cap 220 is made of the same material as the organic plastic tube 210, and is formed by an injection molding process.
The inorganic phase change material 230 is a crystalline hydrated salt, including eutectic salt aqueous solution of halides, sulfates, nitrates, phosphates, carbonates, acetates, etc. of alkali and alkaline earth metals.
The heat storage pipe rack 300 includes an upper orifice plate 310, a lower orifice plate 320, and support columns 330, the upper orifice plate 310 and the lower orifice plate 320 are horizontally disposed inside the heat preservation water tank 100, and the support columns 330 are provided at the bottoms of the upper orifice plate 310 and the lower orifice plate 320 for support.
The electric heating unit 400 comprises a guide pipe 410, an electric heating pipe 420 and a guide ring 430, wherein the guide pipe 410 is positioned at the center of the axis of the inner cavity of the heat-preservation water tank 100 and is provided with an upper opening and a lower opening;
the electric heating pipe 420 is a 304 stainless steel pipe, a nickel-chromium resistance heating wire is arranged in the electric heating pipe 420, quartz powder is filled in the electric heating pipe, the lower part of the electric heating pipe 420 is inserted in the guide pipe 410, and only the nickel-chromium resistance heating wire is arranged in the electric heating pipe 420 inserted in the guide pipe 410;
the flow guide ring 430 is disposed on the top of the flow guide tube 410, and the flow guide ring 430 is disposed concentrically with the flow guide tube 410 for guiding the inflow water.
The water mixing and temperature controlling unit 500 comprises a bypass flow regulating valve 510, an electric two-way valve 520, a water return temperature measuring probe 530 and a connecting water pipe 540, the water return temperature measuring probe 530 is arranged between the water inlet pipe 170 and the water outlet pipe 180, the electric two-way valve 520 is arranged at the end part of the water inlet pipe 170, the water inlet pipe 170 and the water outlet pipe 180 are communicated through the connecting water pipe 540 to form a bypass pipeline, and the bypass pipeline is provided with the bypass flow regulating valve 510.
The working principle of the water mixing temperature control unit 500 is as follows:
the external circulating water pump is started, the tail end water path of the heating starts to circulate, the backwater temperature measuring probe 530 detects the backwater temperature, when the backwater temperature is lower than a set value, the electric two-way valve 520 is opened, the heating backwater enters the phase change heat storage water tank from the water inlet of the heat preservation water tank 100 to be heated and heated, then enters the tail end water path of the heating from the water outlet, and part of the low-temperature backwater in proportion is mixed into the high-temperature water from the water outlet through the bypass pipeline by adjusting the bypass flow adjusting valve 510, so that.
The electric control unit 600 comprises an earth leakage protection switch 610, an alternating current contactor 620, a microcomputer control mainboard 630, a temperature measuring sensor 640 and a dry burning protection switch 650,
the temperature measuring sensor 640 is arranged in the temperature measuring blind pipe 190 at the bottom of the heat preservation water tank 100, the microcomputer control main board 630 is electrically connected with the temperature measuring sensor 640 and the alternating current contactor 620, the microcomputer control main board 630 is also connected with the leakage protection switch 610 and the dry combustion protection switch 650 in a control way, the leakage protection switch 610 is connected with the power supply input end of the electric control unit 600,
when the water supply is cut off inside the heat preservation water tank, the dry-boiling protection switch is started, and the power supply is cut off and does not work any more.
The operating principle of the electrical control unit 600 is:
after the system is powered on, the microcomputer control mainboard 630 detects the water temperature T in the heat-preservation water tank 100 through the temperature measuring sensor 640 in the heat-preservation water tank 1002：
When T is2If the set temperature is not reached, the ac contactor 620 is turned on, and the electric heating tube 420 is electrified for heating;
when T is2When the set temperature is reached, which indicates that the heat storage in the heat-preservation water tank 100 is full, the ac contactor 620 is closed, and the electric heating pipe 420 is powered off to stop heating.
The inorganic phase-change heat storage type electric heating furnace is internally used as a heat exchange medium through water, heating circulation and heat release circulation are realized, the heat storage degree of the inorganic phase-change heat storage type electric heating furnace is controlled through the electric control unit 600, and the temperature of the inorganic phase-change heat storage type electric heating water is controlled through the mixed water temperature control unit 500.
Heating cycle and exothermic cycle are two mutually independent systems, but the independent operation, also can superpose the operation to adapt to three kinds of different work condition of inorganic phase change heat accumulation formula electric heating stove: pure heat storage working condition, pure heat release working condition and working condition of simultaneous storage and simultaneous release.
The working principle of the heating cycle is as follows:
the electric heating pipe 420 is electrified to generate heat to heat the heat exchange medium water in the guide pipe 410, the temperature rise density of the water after being heated is reduced and floats upwards, the water overflows from the upper opening of the guide pipe 410, the water meets the situation that the upper arc end cover of the heat preservation water tank 100 blocks and guides the water, the water turns by 180 degrees, the water sinks along the channel of the inorganic phase change heat storage pipe 200 outside the guide pipe 410 and is cooled, the density is increased, the sinking speed is higher, the water passes through the lower orifice plate 320 and is collected at the lower arc end cover of the heat preservation water tank 100, the water flows which enter the lower opening of the guide pipe 410 after being turned by 180 degrees to supplement the.
In the heating cycle process, because the temperature of the hot water is higher than the phase change point of the electrodeless phase change material 230 in the heat storage pipe 200, the heat storage pipe is cooled and sinks when passing through the gap channel of the inorganic phase change heat storage pipe 200, and the electrodeless phase change material 230 in the inorganic phase change heat storage pipe 200 is heated and dissolved and is changed from a solid state to a liquid state.
The volume of the electrodeless phase change material 230 can expand in the dissolving process, so that the local swelling of the organic plastic tube 210 can be caused, and the service life of the organic plastic tube 210 is influenced after long-term operation, so that the problem is effectively solved by heating from top to bottom.
The working principle of the heat release cycle is as follows:
the heat release cycle is a forced convection heat exchange cycle loaded with a water pump, heating backwater is pressurized by the water pump, guided by a guide ring 430 through a water inlet 140 of the heat preservation water tank 100 and blocked by an upper arc end cover of the heat preservation water tank 100, turns 180 degrees, sinks along a channel between the inorganic phase change heat storage pipes 2 outside the guide pipe 410, is heated to raise the temperature, passes through a lower orifice plate 320, is collected at the lower arc end cover of the heat preservation water tank 100, is mixed with water at a certain temperature through a collecting pipe, a water outlet 150 of the heat preservation water tank and a water mixing temperature control unit 500 to discharge water, enters a heating pipe network and a heat dissipation tail end to dissipate heat and cool, is pressurized by the water pump, enters the water inlet 140 of the heat preservation water tank 100, and.
In the heat release cycle process, because the return water temperature is lower than the phase change point of the electrodeless phase change material 230 in the inorganic phase change heat storage tube 200, the temperature is raised by heating when the heat passes through the gap channel of the inorganic phase change heat storage tube 200, and the electrodeless phase change material 230 in the inorganic phase change heat storage tube 200 releases heat and crystallizes to change from a liquid state to a solid state.
The working principle of heating and heat release circulation is as follows:
the heating while heat release cycle is the superposition of the heating cycle and the heat release cycle, in the process, water heated by the electric heating pipe 420 in the guide pipe 410 rises to merge with heating return water flowing through the water pump and the water inlet 140 of the heat preservation water tank 100 and the guide ring 430 into one from the opening at the upper part of the guide pipe 410;
sinking along the channel between the inorganic phase-change heat storage tubes 200 outside the flow guide tube 410, releasing heat, reducing the temperature (the temperature of mixed water is higher than the temperature of the phase change point of the inorganic phase-change material 230) or heating the temperature (the temperature of mixed water is lower than the temperature of the phase change point of the inorganic phase-change material 230), passing through the lower orifice plate 320, collecting at the lower arc end cover of the heat preservation water tank 100, and feeding a flow of water which is heated and rises through the lower opening of the flow guide tube 410 to form a heating;
the other strand of water is mixed with water through the collecting pipe, the water outlet 150 of the heat preservation water tank 100 and the mixed water temperature control unit 500, the water is discharged at a certain temperature, enters the heating pipe network and the heat dissipation end to dissipate heat and cool, and enters the water inlet 140 of the heat preservation water tank 100 through the pressurization of the water pump, so that the heat release cycle is formed.
The utility model discloses inorganic phase transition heat accumulation formula electric heating stove's beneficial effect is:
have independent heating cycle and exothermic cycle, can the independent operation also can superpose the operation, can adapt to three kinds of different operating modes: the inorganic phase change heat storage type electric heating system has the advantages of being capable of achieving low cost and long service life under the pure heat storage working condition, the pure heat release working condition and the simultaneous storage and discharge working condition.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (9)
1. An inorganic phase-change heat storage type electric heating stove is characterized by comprising a heat preservation water tank, inorganic phase-change heat storage pipes, an electric heating unit, a water mixing temperature control unit and an electric control unit, wherein the inorganic phase-change heat storage pipes are uniformly distributed in the heat preservation water tank, the electric heating unit is arranged in the center of the heat preservation water tank,
the water mixing and temperature controlling unit is arranged between a water inlet pipe and a water outlet pipe of the heat preservation water tank, the temperature of the electric heating outlet water is controlled through the water mixing and temperature controlling unit, the heat preservation water tank is also externally provided with an electric control unit, and the heat storage degree in the heat preservation water tank is controlled through the electric control unit.
2. The inorganic phase-change heat accumulating type electric heating stove according to claim 1, wherein the heat-insulating water tank comprises an inner container, an outer container and a heat-insulating layer arranged between the inner container and the outer container, the heat-insulating water tank is further provided with a water inlet, a water outlet and a flange port,
the water inlet is positioned at the upper part of the heat preservation water tank, the water inlet pipe penetrates through the outer container and the inner container and is welded and connected with the flow guide ring at the upper part of the flow guide pipe in the central electric heating unit of the heat preservation water tank, and the water inlet pipe penetrates through the inner container of the heat preservation water tank and is sealed by welding;
the water outlet is positioned at the lower part of the heat preservation water tank, the water outlet pipe penetrates through the outer container and the inner container and then extends to the central position of the bottom of the inner cavity of the heat preservation water tank and is provided with a hole downwards, and the water outlet pipe penetrates through the inner container of the heat preservation water tank and is sealed by welding;
the flange opening is positioned at the top of the heat preservation water tank and comprises flange bolt holes, a flange cover plate, a sealing ring and connecting bolts, the connecting bolts penetrate through the flange bolt holes on the two sides of the flange cover plate to be fixed, the sealing ring is also arranged on the inner side of the flange cover plate,
the center of the flange cover plate is also provided with a mounting hole for mounting an electric heating pipe, the mounting hole is an internal thread hole or a flange hole, and the electric heating pipe is connected with the flange opening by adopting threaded connection or flange connection.
3. The inorganic phase-change heat storage type electric heating stove according to claim 1, wherein a heat storage pipe frame is arranged inside the heat preservation water tank, and the inorganic phase-change heat storage pipes are uniformly distributed in the heat preservation water tank through being supported by the heat storage pipe frame.
4. The inorganic phase-change heat accumulating type electric heating stove according to claim 3, wherein the inorganic phase-change heat accumulating pipe comprises an organic plastic pipe, an inorganic phase-change material and a pipe cap, the inorganic phase-change material is filled in the organic plastic pipe, and the pipe cap is welded and fixed at two ends of the organic plastic pipe.
5. The inorganic phase-change heat accumulating type electric heating stove according to claim 3, wherein the heat accumulating pipe frame comprises an upper orifice plate, a lower orifice plate and support pillars, the upper orifice plate and the lower orifice plate are horizontally arranged inside the heat-insulating water tank, and the support pillars are arranged at the bottoms of the upper orifice plate and the lower orifice plate for supporting.
6. The inorganic phase-change heat accumulating type electric heating stove according to claim 1, wherein the electric heating unit includes a flow guide pipe, an electric heating pipe and a flow guide ring, the flow guide pipe is positioned at a straight cylinder position in the center of the axis of the inner cavity of the heat-insulating water tank, an upper opening and a lower opening of the flow guide pipe,
the lower part of the electric heating pipe is inserted in the flow guide pipe, a nickel-chromium resistance heating wire is arranged in the electric heating pipe inserted in the flow guide pipe, the flow guide ring is arranged at the top of the flow guide pipe, and the flow guide ring and the flow guide pipe are concentrically arranged and used for water inflow and flow guide.
7. The inorganic phase-change heat storage type electric heating stove according to claim 1, wherein the mixed water temperature control unit comprises a bypass flow control valve, an electric two-way valve, a return water temperature measuring probe and a connecting water pipe, the return water temperature measuring probe is arranged between the water inlet pipe and the water outlet pipe, the electric two-way valve is arranged at the end part of the water inlet pipe, the water inlet pipe and the water outlet pipe are communicated through the connecting water pipe to form a bypass pipeline, and the bypass pipeline is provided with the bypass flow control valve.
8. The inorganic phase-change heat storage type electric heating stove according to claim 1, wherein the electric control unit includes a leakage protection switch, an AC contactor, a microcomputer control main board, a temperature sensor and a dry-fire protection switch,
the temperature measurement sensor is arranged in the temperature measurement blind pipe at the bottom of the heat preservation water tank, the microcomputer control mainboard is electrically connected with the temperature measurement sensor and the alternating current contactor, the microcomputer control mainboard is also in control connection with the leakage protection switch and the dry combustion protection switch, and the leakage protection switch is connected to the power input end of the electrical control unit.
9. The inorganic phase-change heat storage type electric heating stove according to any one of claims 1 to 8, wherein water is used as a heat exchange medium inside the inorganic phase-change heat storage type electric heating stove to realize a heating cycle and a heat release cycle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921040545.XU CN210663028U (en) | 2019-07-05 | 2019-07-05 | Inorganic phase-change heat-storage type electric heating stove |
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| CN201921040545.XU CN210663028U (en) | 2019-07-05 | 2019-07-05 | Inorganic phase-change heat-storage type electric heating stove |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388684A (en) * | 2019-07-05 | 2019-10-29 | 常州海卡太阳能热泵有限公司 | Inorganic-phase variable thermal storage type electric heating furnace and heating method |
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2019
- 2019-07-05 CN CN201921040545.XU patent/CN210663028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388684A (en) * | 2019-07-05 | 2019-10-29 | 常州海卡太阳能热泵有限公司 | Inorganic-phase variable thermal storage type electric heating furnace and heating method |
| CN110388684B (en) * | 2019-07-05 | 2024-03-26 | 常州海卡太阳能热泵有限公司 | Inorganic phase-change heat accumulating type electric heating stove and heating method |
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