CN111578357B - Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect - Google Patents

Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect Download PDF

Info

Publication number
CN111578357B
CN111578357B CN202010455302.3A CN202010455302A CN111578357B CN 111578357 B CN111578357 B CN 111578357B CN 202010455302 A CN202010455302 A CN 202010455302A CN 111578357 B CN111578357 B CN 111578357B
Authority
CN
China
Prior art keywords
box body
heating box
heat storage
storage unit
silica gel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010455302.3A
Other languages
Chinese (zh)
Other versions
CN111578357A (en
Inventor
张群力
赵文强
张文婧
翟洪宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Civil Engineering and Architecture
Original Assignee
Beijing University of Civil Engineering and Architecture
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing University of Civil Engineering and Architecture filed Critical Beijing University of Civil Engineering and Architecture
Priority to CN202010455302.3A priority Critical patent/CN111578357B/en
Publication of CN111578357A publication Critical patent/CN111578357A/en
Application granted granted Critical
Publication of CN111578357B publication Critical patent/CN111578357B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F24D13/00—Electric heating systems
    • F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • 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
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
    • 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
    • F24D19/06—Casings, cover lids or ornamental panels, for radiators
    • F24D19/064—Coverings not directly attached to a radiator, e.g. box-like coverings
    • 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
    • F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Central Heating Systems (AREA)

Abstract

The invention discloses a low-temperature phase change energy storage electric heating device with a thermal catalysis purification effect, and belongs to the field of heating equipment and indoor purification equipment. Wherein the upper part and the lower part of the front panel of the heating box body are respectively provided with an air inlet and an air outlet; a plurality of slender heat storage units are transversely arranged in the heating box body by using the unit clamping grooves, and an air circulation channel is arranged between each heat storage unit and the front panel of the heating box body; the temperature control device and the switch component are installed in the middle of the right side of the front panel of the heating box body, the surface of the front panel of the heating box body is coated with the Pt-silica gel composite material coating, the heat storage unit stores heat generated by electric heating, and the heat required by the Pt-silica gel composite material coating for degrading indoor VOCs is provided while the indoor room is heated through air. The invention balances the peak-valley difference of the power grid, maintains the stable temperature of the room and has the effect of purifying air.

Description

Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect
Technical Field
The invention relates to the field of heating equipment and indoor purification equipment, in particular to a low-temperature phase-change energy-storage electric heating device with a thermocatalytic purification effect.
Background
Most areas in China have heating requirements in winter, but the central heating range is limited. In these areas, distributed heating is the main heating method, including small-scale household oil or gas boiler, variable frequency air conditioner, ground source heat pump and electric heater. Wherein, the oil-fired and gas-fired boiler is easy to cause environmental pollution; the operation cost of the variable frequency air conditioner is high; the ground source heat pump and the electric heater are energy-saving and environment-friendly and have moderate operation cost. However, the ground source heat pump is limited by the geothermal conditions and is difficult to popularize and apply in some areas. The electric heater has the characteristics of simple and portable structure, higher flexibility, low equipment manufacturing cost and operating cost and no special requirement on the use environment. Most of the electric heaters sold in the market at present do not have a heat storage function. The electric heater with the heat storage function is mainly realized by adopting heat storage bricks to store heat through sensible heat, the temperature drop speed is high, the heat release power is unstable, and the indoor thermal comfort is low.
The phase-change material is used as an energy storage material with high heat storage density, and the heat conductivity coefficient of the phase-change material can be effectively improved by adding the enhanced heat transfer materials such as expanded graphite, nano copper and the like, and the phase-change temperature of a pure substance can be maintained.
In addition to indoor thermal comfort, control of indoor air pollutants is also an important part of improving indoor environment. At present, the indoor air pollution problem of urban areas in China is serious, and the pollutants are mainly Volatile Organic Compounds (VOCs). The purification efficiency is high, the energy consumption is low, and the development of the purification technology without secondary pollution has important significance.
The Pt thermal catalysis-silica gel composite material has a remarkable purification effect on three organic matters of formaldehyde, benzene and toluene, the catalytic effect of the catalyst is positively correlated with the temperature, and the catalytic effect tends to be stable at 60 ℃.
The invention aims to provide a low-temperature phase-change energy-storage electric heating device with a thermal catalysis purification effect. The electric heater solves the problems of large power consumption, higher operating cost and unsatisfactory energy storage effect of the conventional electric heater. And the purification of indoor VOC is realized under the condition of no redundant energy consumption by combining with a thermal catalytic purification material.
Disclosure of Invention
In order to solve the technical problem, the invention provides a low-temperature phase energy storage electric heating device with a thermocatalysis function, which is characterized by comprising: the heating system comprises a heating box body, a heat storage unit, a temperature control device, a switch assembly and a Pt-silica gel composite material coating; the heating box body is of a cuboid structure and comprises a front back top bottom and a left plate and a right plate, and the heating box body is connected with a front back top bottom plate of the heating box body through a left baffle arranged on the heating box body through a fixing bolt; the upper part and the lower part of the front panel of the heating box body are respectively provided with an air inlet and an air outlet; a plurality of slender heat storage units are transversely arranged in the heating box body by using the unit clamping grooves, and an air circulation channel is arranged between each heat storage unit and the front panel of the heating box body; the temperature control device and the switch component are installed in the middle of the right side of the front panel of the heating box body, the surface of the front panel of the heating box body is coated with the Pt-silica gel composite material coating, the heat storage unit stores heat generated by electric heating, and the heat required by the Pt-silica gel composite material coating for degrading indoor VOCs is provided while the indoor room is heated through air.
The heat storage unit includes: the carbon fiber heating cable is arranged in the heat storage unit in a U shape and is wrapped by the low-temperature phase change material, the heat storage unit shell is of a strip cuboid structure, and the right side of the heat storage unit shell is provided with a power line and the carbon fiber heating cable; low temperature phase change material is filled in the heat accumulation unit shell, and low temperature phase change material is used for storing the heat that carbon fiber heating cable sent, gives off certain heat simultaneously in order to heat outside cold air.
The phase change temperature of the low-temperature phase change material is 60-65 ℃.
The control input of the temperature control device and the switch assembly is a temperature collector arranged on the surface of the heat storage unit; the control output end is connected with the internal carbon fiber heating cables of the heat storage units; the power input end of the temperature control device and the switch component is connected with the input live wire, the input zero wire and the input ground wire of the power line; and the power output end is connected with the output live wire and the output zero wire and further connected to the carbon fiber heating cables of the heat storage units.
And a thermal protection layer is arranged between the temperature control device and the heating box body and between the switch assembly and the heating box body.
The thickness of the air circulation channel is 2-3 cm, and air entering from the air inlet circulates in the air circulation channel under the chimney effect.
The surface of the front panel of the heating box body is coated with a Pt-silica gel composite material coating, which comprises the following specific steps: the front surface and/or the outer surface of the heating box body is/are coated with a Pt-silica gel composite material coating.
When the front surface of the heating box body is internally coated with the Pt-silica gel composite material coating, the Pt-silica gel composite material coating is coated on a purifying material coating area in the circulating air purifying area;
the circulating air purification area is arranged on the inner side of the front panel of the heating box body and is positioned between the air inlet and the air outlet; the circulating air purification area consists of a solution injection port, a purification material coating area and a solution collecting tank from top to bottom, and one end of the solution collecting tank is provided with a solution outflow hole.
The surface of the purifying material coating area is fixedly connected with vertically arranged ribs at equal intervals, and the height of each rib is 0.5 cm-1.5 cm.
The Pt-silica gel composite coating is prepared from the following components in percentage by weight: 1 and silica gel, wherein the Pt thermal catalyst is TiO2Adding 0.1-3% of metal Pt by mass percent.
The invention has the beneficial effects that:
the low-temperature phase-change material is used for storing heat and releasing heat in indoor heating, and the device has the advantages of high heat storage density, small occupied area, stable temperature control, no noise in operation and the like; after the method is popularized in a large quantity, the peak-valley difference of the power grid can be balanced, the reasonable utilization of energy is realized, and the heating expense of users is reduced. Meanwhile, in the heating process, when hot air passes through an air channel in the heating box body, heat is provided for the Pt thermal catalysis-silica gel composite material in the panel, and decomposition of organic pollutants in the air is catalyzed, so that the effect of purifying indoor air without increasing electricity consumption is achieved.
Drawings
FIG. 1 is a schematic structural diagram of an energy storage type electric heating apparatus 1 with a thermal catalytic purification effect according to the present invention in a front view;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a left side view of embodiment 1 of the present invention;
FIG. 5 is a schematic view of the internal structure of embodiment 1 of the present invention;
FIG. 6 is a diagram showing an internal circuit configuration distribution according to embodiment 1 of the present invention;
FIG. 7 is a schematic structural view of a heat storage unit in example 1 of the invention;
fig. 8 is a right side view of the heat storage unit in embodiment 1 of the invention;
FIG. 9 is a schematic front view configuration diagram according to embodiment 2 of the present invention;
fig. 10 is a schematic view of a front panel of a heating cabinet according to embodiment 2 of the present invention from inside to outside;
fig. 11 is a partial sectional view of an air flow channel according to embodiment 2 of the present invention.
In the figure:
1-a heating box body; 2-Pt-silica gel composite coating; 3-switching the control panel; 4, air outlet; 5-air inlet; 6-fixing the hook; 7-fixing the bolt; 8-a heat storage unit; 9-temperature control device and switch assembly; 10-carbon fiber heating cable; 11-a thermal storage unit housing; 12-low temperature phase change material, 101-circulating air purification area, 102-air circulation channel, 1012-solution injection port, 1013-purification material coating area, 1014-solution collection tank, 1015-solution outflow port, 1016-rib.
Detailed Description
The embodiment of the energy storage type electric heating device with a thermal catalytic purification effect of the invention as shown in fig. 1 to 3 comprises: the heating system comprises a heating box body 1, a heat storage unit 8, a temperature control device, a switch assembly 9 and a Pt-silica gel composite material coating 2; the heating box body 1 is of a rectangular structure made of stainless steel, the heating box body 1 comprises six plates, namely a front back plate, a top bottom plate and a left plate, and the heating box body 1 is installed on a wall surface through two fixing hooks 6 arranged at the top end of the back plate; the left baffle of the heating box body 1 is connected with the front back top bottom plate of the heating box body 1 through a fixing bolt 7. The upper part and the lower part of the front panel of the heating box body 1 are respectively provided with an air inlet 5 and an air outlet 4; the heating box body 1 is provided with a box body clamping groove for installing the heat storage units 8 in the front panel and the back panel, each elongated heat storage unit 8 is transversely installed in the heating box body 1 by utilizing the unit clamping groove, the heat storage units 8 are installed in the heat storage box body 1 in a top-up and top-down mode (no gap exists above, below and behind), and an air circulation channel 102 is arranged between each heat storage unit 8 and the front panel of the heating box body 1.
The heat storage unit 8 includes: the carbon fiber heating cable 10 is arranged in the heat storage unit 8 in a U shape and is wrapped by the low-temperature phase change material 12, the heat storage unit shell 11 is of a strip cuboid structure, and the right side of the heat storage unit shell 11 is provided with a power line and the carbon fiber heating cable; the heat storage unit shell 11 is filled with a low-temperature phase change material 12, and the low-temperature phase change material 12 is used for storing heat emitted by the carbon fiber heating cable 10 and emitting certain heat to heat external cold air.
The temperature control device and the switch component 9 are arranged in the middle of the right side of the front panel of the heating box body 1, and a thermal protection layer is arranged between the temperature control device and the switch component 9 and the heating box body 1. The control input of the temperature control device and the switch component 9 is a temperature collector arranged on the surface of the heat storage unit 8; the control output is connected to the internal carbon fibre heating cables 10 of each heat storage unit 8. The power input end of the temperature control device and switch component 9 is connected with the input live wire, the input zero wire and the input ground wire of the power line; the power supply output is connected to the outgoing live and neutral wires and further to the carbon fibre heating cables 10 of each heat storage unit 8.
In this embodiment, the front surface of the heating box 1 is coated with the Pt-silica gel composite coating 2, and the Pt-silica gel composite coating 2 degrades the indoor VOCs by using heat emitted by the heat storage unit 8 in the heating box 1 during operation, thereby purifying indoor air.
In this embodiment, the heating cabinet 1 has the following dimensions: 80cm × 15cm × 150 cm; the size length x width x height of the heat storage unit 8 is: 39cm by 12 cm.
In the embodiment, the air circulation channel is a gap with the thickness of 2-3 c-m, air heated by the air inlet 5 circulates in the gap from bottom to top under the chimney effect formed by the density difference of the air and is finally discharged by the air outlet 4.
In the embodiment, the working range of the electric heating device is 50-70 ℃, the phase change temperature of the used low-temperature phase change material 12 is 60-65 ℃, and the latent heat of phase change is not lower than 180 kJ/kg.
In this embodiment, the Pt-silica gel composite coating 2 is prepared by mixing the following components in a ratio of 1: 1 and silica gel, wherein the Pt thermal catalyst is TiO2Adding 0.1-3% of metal Pt by mass percent; the coating amount of the Pt-silica gel composite material coating 2 outside the front surface of the box body is about 250g/m2。
When the air conditioner works, air sucked from the air inlet 5 is heated by the heat storage unit 8, and then flows in the air circulation channel by utilizing a chimney effect formed by the density difference of the heated air, so that hot air is generated to heat a room through the air outlet 4, meanwhile, the heating box body 1 provides heat for the Pt-silica gel composite material, and the decomposition of indoor organic pollutants is catalyzed, so that the effect of purifying indoor air is achieved. If the Pt-silica gel composite material coating 2 fails, spraying a dilute NaOH solution with the mass fraction of 10-15% on the surface of the Pt-silica gel composite material coating 2, and recovering the thermal catalytic decomposition capability.
Embodiment 2 of the present invention shown in fig. 9 to 11, the undescribed portion is the same as embodiment 1;
in the embodiment, a Pt-silica gel composite coating 2 is coated in the front surface of the heating box body 1, specifically, a circulating air purification area 101 is arranged in the front surface of the heating box body 1, and the circulating air purification area 101 is arranged on the inner side of the front surface plate of the heating box body 1 and is positioned between the air inlet 5 and the air outlet 4;
in this embodiment, the circulating air cleaning region 101 is composed of a solution inlet 1012, a cleaning material coating region 1013 and a solution collecting tank 1014 from top to bottom, wherein vertically arranged ribs 1016 are fixedly connected to the surface of the cleaning material coating region 1013 at equal intervals, a Pt-silica gel composite coating 2 is coated on the cleaning material coating region 1013, and one end of the solution collecting tank 1014 is provided with a solution outlet 1015.
In this embodiment, the solution collecting tank 1014 forms an angle of 5 ° with the horizontal plane, and the solution outflow hole 1015 is located on the lower side of the solution collecting tank 1014; when the dilute NaOH solution is not added, the solution injection inlet 1012 and the solution outflow outlet 1013 are respectively communicated with the air outlet 4 and the air inlet 5, and are only used for air exhaust and air intake.
In the embodiment, the ribs 1016 are continuous corrugated lines, the height of the ribs 1016 protruding out of the heating box body 1 is 0.5 cm-1.5 cm, the distance between the ribs 1016 is 1 cm-3 cm, the corrugated lines enable the requirement on operation precision during injection of the pipe to be low, and the pipe penetrates through the solution injection port 1012 and is aligned with the ribs 1016; meanwhile, the surface area of the Pt-silica gel composite material coating 2 is increased, and the static air purification effect is further enhanced;
when the air purification device works, air sucked from the air inlet 5 is heated by the heat storage unit 8, and then flows in the air flow channel 102 by utilizing a chimney effect formed by the density difference of the heated air, and the rib 1016 in the circulating air purification area 101 ensures the flow direction of the air and the failure speed among the Pt-silica gel composite coatings 2 in each area while increasing the purification area; the purified and heated air is discharged from the air outlet 4 to heat the room.
If the Pt-silica gel composite coating 2 in the embodiment fails, a dilute NaOH solution with the mass fraction of 10% -15% is injected into the solution injection groove 1012 at a constant speed through a conduit, and flows downwards uniformly along with the space between the rib 1016 and covers all the areas of the surface of the purifying material coating area 1012; the redundant dilute NaOH solution is collected in the solution collecting tank 1014 and flows out through the solution outflow hole 1015 at the lowest end, and finally, the dilute NaOH solution is collected or wiped clean; the dilute NaOH solution attached to the Pt-silica gel composite coating 2 is rapidly dried by the wind in the air circulation channel and recovers the thermal catalytic decomposition capability.
It is easily understood that the technical solutions of coating the front surface of the heating cabinet 1 with the Pt-silica gel composite coating 2 (example 1) and coating the front surface of the heating cabinet 1 with the Pt-silica gel composite coating 2 (example 2) may be simultaneously provided.

Claims (5)

1. A low-temperature phase change energy storage electric heating device with a thermal catalytic purification effect comprises: the heating system comprises a heating box body (1), a heat storage unit (8), a temperature control device, a switch component (9) and a Pt-silica gel composite material coating (2); the heating box body (1) is of a cuboid structure, the heating box body (1) comprises six plates, namely a front back top bottom plate and a left back bottom plate, the heating box body (1) is connected with the front back top bottom plate of the heating box body (1) through a left baffle arranged on the heating box body (1) through a fixing bolt (7); a plurality of elongated heat storage units (8) are transversely arranged in the heating box body (1) by utilizing unit clamping grooves, and a temperature control device and a switch component (9) are arranged in the middle of the right side of the front panel of the heating box body (1), and are characterized in that the upper part and the lower part of the front panel of the heating box body (1) are respectively provided with an air inlet (5) and an air outlet (4); the surface of the front panel of the heating box body (1) is coated with the Pt-silica gel composite coating (2), the heat storage unit (8) stores heat generated by electric heating, and provides heat required by the Pt-silica gel composite coating (2) for degrading indoor VOCs while heating indoor rooms through air; an air circulation channel (102) is arranged between the heat storage unit (8) and the front panel of the heating box body (1); the thickness of the air circulation channel (102) is 2-3 cm, and air entering from the air inlet (5) circulates in the air circulation channel under the chimney effect;
the front panel surface of the heating box body (1) is coated with a Pt-silica gel composite material coating (2) which is divided into: the front surface of the heating box body (1) is internally and/or externally coated with a Pt-silica gel composite material coating (2); the Pt-silica gel composite material coating (2) is prepared by mixing the following components in percentage by weight of 1: 1 and silica gel, wherein the Pt thermal catalyst is TiO2Adding 0.1-3% of metal Pt by mass percentage;
when the front surface of the heating box body (1) is internally coated with the Pt-silica gel composite coating (2), the Pt-silica gel composite coating (2) is coated on the purifying material coating area (1013) in the circulating air purifying area (101); the circulating air purification area (101) is arranged on the inner side of the front panel of the heating box body (1) and is positioned between the air inlet (5) and the air outlet (4); the circulating air purification area (101) consists of a solution injection port (1012), a purification material coating area (1013) and a solution collection tank (1014) from top to bottom, and one end of the solution collection tank (1014) is provided with a solution outflow hole (1015); the solution collecting tank (1014) forms an included angle of 5 degrees with the horizontal plane, and the solution outflow hole (1015) is positioned on the lower side of the solution collecting tank (1014); the surface of the purifying material coating area (1013) is fixedly connected with vertically arranged ribs (1016) at equal intervals, the height of the ribs (1016) is 0.5-1.5 cm, and the interval between the ribs (1016) is 1-3 cm;
when the Pt-silica gel composite material coating (2) arranged on the inner side of the front panel of the heating box body (1) in the circulating air purification area (101) fails, dilute NaOH solution with the mass fraction of 10% -15% is injected into a solution injection port (1012) from a guide pipe at a constant speed, and flows downwards uniformly along with the space between the ribs (1016) and covers all areas of the surface of the purification material coating area (1013); the redundant dilute NaOH solution is collected in a solution collecting tank (1014) and flows out through a solution outflow hole (1015) at the lowest end, and finally, the dilute NaOH solution is collected or wiped clean; the dilute NaOH solution attached to the Pt-silica gel composite material coating (2) is quickly dried by wind in an air circulation channel and recovers the thermal catalytic decomposition capability; the corrugated lines ensure that the operation precision is not high when the catheter is injected, and the catheter passes through the solution injection port (1012) and is aligned with the rib (1016); meanwhile, the surface area of the Pt-silica gel composite material coating (2) is also increased.
2. The low-temperature phase-change energy-storage electric heating device with the thermocatalytic purification effect as claimed in claim 1, characterized in that said heat storage unit (8) comprises: the heat storage unit comprises a heat storage unit shell (11), a low-temperature phase change material (12) and a carbon fiber heating cable (10), wherein the carbon fiber heating cable (10) is arranged in the heat storage unit (8) in a U shape and is wrapped by the low-temperature phase change material (12), the heat storage unit shell (11) is of a strip cuboid structure, and the right side of the heat storage unit shell (11) is provided with a power line and the carbon fiber heating cable; low temperature phase change material (12) is filled in the heat storage unit shell (11), and the low temperature phase change material (12) is used for storing the heat that carbon fiber heating cable (10) sent, gives off certain heat in order to heat outside cold air simultaneously.
3. The low-temperature phase-change energy-storage electric heating device with the thermocatalytic purification effect as claimed in claim 2, wherein the phase-change temperature of the low-temperature phase-change material (12) is 60-65 ℃.
4. The low-temperature phase-change energy-storage electric heating device with the thermocatalytic purification effect as claimed in claim 1, characterized in that the control input of the temperature control device and the switch component (9) is a temperature collector arranged on the surface of the heat storage unit (8); the control output end is connected with the internal carbon fiber heating cable (10) of each heat storage unit (8); the power input end of the temperature control device and the switch component (9) is connected with the input live wire, the input zero wire and the input ground wire of the power line; the power output end is connected with the output live wire and the output zero wire and further connected to the carbon fiber heating cable (10) of each heat storage unit (8).
5. The low-temperature phase-change energy-storage electric heating device with the thermocatalytic purification effect as claimed in one of claims 1 or 4, characterized in that a thermal protection layer is arranged between the temperature control device and switch assembly (9) and the heating box body (1).
CN202010455302.3A 2020-05-26 2020-05-26 Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect Active CN111578357B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010455302.3A CN111578357B (en) 2020-05-26 2020-05-26 Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010455302.3A CN111578357B (en) 2020-05-26 2020-05-26 Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect

Publications (2)

Publication Number Publication Date
CN111578357A CN111578357A (en) 2020-08-25
CN111578357B true CN111578357B (en) 2021-08-31

Family

ID=72127029

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010455302.3A Active CN111578357B (en) 2020-05-26 2020-05-26 Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect

Country Status (1)

Country Link
CN (1) CN111578357B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079848A2 (en) * 2009-12-18 2011-07-07 Robert Otto Renfer Heater
CN102389838B (en) * 2011-09-21 2013-07-10 西安交通大学 Device for on-line cleaning of selective catalyctic reduction (SCR) denitration catalyst and cleaning process thereof
CN104879822A (en) * 2015-04-30 2015-09-02 李渊 Energy-storing electric heater
CN108731089A (en) * 2017-04-25 2018-11-02 李渊 A kind of phase-change thermal storage heat collector
CN110107949A (en) * 2019-06-03 2019-08-09 清华大学合肥公共安全研究院 Dual catalyst coating shutter type thermal-arrest wall and application method

Also Published As

Publication number Publication date
CN111578357A (en) 2020-08-25

Similar Documents

Publication Publication Date Title
CN102087050A (en) Solar hot-water hot-air supplying device
CN109579295B (en) Heating device capable of realizing rapid heating by liquid and vapor vacuum circulation
CN201392112Y (en) Main heat exchanger of gas heating water heater
CN111578357B (en) Low-temperature phase-change energy-storage electric heating device with thermal catalytic purification effect
CN101625161B (en) Double heat absorption combined solar energy air heater
CN211177027U (en) Distributed heating system based on fused salt heat storage
CN205537249U (en) Adopt industry heat recovery heat transfer case of board -like sensible heat heat transfer
CN110542148A (en) Domestic natural gas heating system
CN206875547U (en) A kind of solid paddy electricity energy energy storage system
CN201599955U (en) Multi-ventilation double-heat exchange flat-plate solar heat collector
CN113776040A (en) Environment-friendly boiler with energy-saving function
CN210485852U (en) Heating device for electric heating energy storage
CN210035671U (en) Household valley electricity energy storage heater
CN113864927A (en) Solar hot air system
CN112484138A (en) Domestic natural gas heating system
CN211372593U (en) Building heat supply unit
CN207299563U (en) A kind of wavy metal screen mesh type solar energy air heat collector
CN101303169A (en) Heat accumulated electric heater capable of cooling for timing
CN219141550U (en) Energy-saving and environment-friendly glass fiber reinforced plastic cooling tower
CN216558333U (en) Natural gas burner gas heat recovery purifier
CN214333106U (en) Air source heat pump system
CN211551761U (en) Energy-saving heating air conditioner
CN220229448U (en) Energy-saving ventilation device for building
CN211739049U (en) Boiler waste heat recovery device
CN215570782U (en) Geothermal heater

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant