CN213955992U - Combined energy-saving device - Google Patents
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- CN213955992U CN213955992U CN202022793077.2U CN202022793077U CN213955992U CN 213955992 U CN213955992 U CN 213955992U CN 202022793077 U CN202022793077 U CN 202022793077U CN 213955992 U CN213955992 U CN 213955992U
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Abstract
The utility model relates to a combined energy-saving device, which comprises an energy-saving plate and a circular arc guide angle plate, wherein the energy-saving plate and the circular arc guide angle plate are made of high-temperature resistant and high-radiation materials, the front surfaces of the energy-saving plate and the guide angle plate are provided with a plurality of circular arc herringbone grooves or circular arc wavy grooves which are arranged in sequence, and the back surfaces of the energy-saving plate and the guide angle plate are rough; the energy-saving plates are sequentially and closely arranged and fixed on the inner wall of the industrial kiln to completely cover the inner wall of the kiln, the guide angle plates are sequentially and closely arranged and fixed at included angle positions in the industrial kiln to completely cover included angle positions in the kiln, and the joints of the energy-saving plates and the guide angle plates are mutually and closely connected. By adopting the technical scheme, the combined energy-saving device formed by mutually combining the energy-saving plates and the guide angle plates is stably installed in the furnace and is not easy to fall off, the heat exchange of the hearth is obviously enhanced, the heating speed of the hearth is greatly improved, the purposes of reducing energy consumption and saving energy are achieved, the lining material is protected, and the service life of the furnace is prolonged.
Description
Technical Field
The utility model relates to an energy-conserving field of industrial furnace especially relates to a modular economizer.
Background
At present, in order to improve the heat efficiency of the industrial heating furnace kiln, the commonly adopted energy-saving technologies are single, and no technology can comprehensively and comprehensively solve the problem of high energy consumption of the industrial furnace kiln. The technology can improve the blackness of lining materials of the hearth to a certain extent, but is limited, the energy saving rate is about 5%, and the service life is within one year; there is also a method of sticking a fiber blanket on the inner wall of the hearth. The method can only block heat energy in the hearth to play a role in reducing heat dissipation loss, does not solve the problem that heat rays in the furnace are in a diffuse reflection state, has low arrival rate of the heat rays and low blackness of fiber materials, and can correspondingly reduce the blackness when the temperature of the furnace rises, so that the energy saving rate is not high. In recent years, cavity type single or multiple prefabricated members have appeared, and the materials of the prefabricated members are sprayed by using common refractory materials. If the honeycomb type semi-closed cavity fireproof prefabricated member is formed by connecting a plurality of cavities, the prefabricated member is large and heavy, the cavity part is too high, the part of the cavity facing the interior of the furnace is even in direct contact with flame, is washed by strong hot air flow, is broken by partial cavity, is seriously wholly fallen, has large construction difficulty, is adhered to the inner wall of the furnace by plaster at the bottom of the cavity, and can not adapt to the working environment of strong air flow far away. In severe cases, even when the furnace temperature does not rise to the operating temperature, the preform falls off, and once the fall occurs, the entire preform loses its effect. Greatly influencing the energy-saving transformation effect. In addition, the prefabricated member is made of a common refractory material, the emissivity of the prefabricated member is about 0.5, elements for improving the blackness are not added to the base body, the blackness of the base body is improved by spraying the surface of the base body, the service life of the prefabricated member is short, and the energy-saving reconstruction effect cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above and/or other problems occurring therein.
An object of the utility model is to provide a modular economizer to solve current industrial kiln economizer and easily age, decay, easily drop, problem that energy-conserving effect is poor.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme: a combined energy-saving device comprises a rectangular energy-saving plate and an arc-shaped guide angle plate, wherein the rectangular energy-saving plate and the arc-shaped guide angle plate are made of high-temperature-resistant and high-radiation-resistant materials; the energy-saving plates are sequentially and tightly arranged and fixedly arranged on the inner wall of the industrial kiln, the guide angle plates are sequentially and tightly arranged and fixedly arranged at the included angle part in the industrial kiln, the inner wall of the kiln is completely covered by the plurality of energy-saving plates, the included angle part in the kiln is completely covered by the plurality of guide angle plates, and the joints of the energy-saving plates and the guide angle plates are mutually and tightly connected; the energy-saving plate is provided with five fixed mounting holes, wherein four of the fixed mounting holes are side holes, and one fixed mounting hole is a central hole; two fixed mounting plates are arranged at two ends of the guide angle plate along the tangential direction of the end point edge of the cambered surface and inwards inclined by 15-30 degrees, the fixed mounting plates and the guide angle plate are connected into a whole, the fixed mounting plates and the guide angle plate are consistent in width, the width is set to be 30-60 cm, and 4-6 fixed mounting plate mounting holes are formed in the fixed mounting plates; the back surfaces of the energy-saving plate and the guide angle plate are rough, the energy-saving plate and the guide angle plate are bonded and sintered with the inner wall of the furnace into a whole by high-temperature cement paste, and the energy-saving plate and the guide angle plate are fixedly installed by ceramic screws through the fixed installation holes and the fixed installation plate installation holes.
The utility model discloses a further technical scheme is: the minimum distance between the side hole and the edge of the energy-saving plate is not less than 10cm, the diameter of the side hole is 3-5 mm, the center hole is located in the center of the energy-saving plate, and the diameter of the center hole is 5-8 mm.
The utility model discloses a further technical scheme is: the arc diameter of a plurality of arc herringbone grooves or arc wavy grooves on the energy-saving plate is 1-2 cm, and the distance between the grooves is 1-2 cm.
The utility model discloses a further technical scheme is: the energy-saving plate is 30-60 cm long, 20-30 cm wide and 2-5 cm thick.
The utility model discloses a further technical scheme is: the thickness of the arc surface of the guide angle plate is 2-5 cm, and the arc diameter of the arc surface is 10-30 cm.
The utility model discloses a further technical scheme is: the included angle part comprises an included angle between the end wall and the side wall and an included angle of the inner wall of the furnace.
The utility model discloses a further technical scheme is: the minimum distance between the fixed mounting plate mounting hole and the edge of the fixed mounting plate is not less than 10cm, and the diameter of the fixed mounting plate mounting hole is 3-5 mm.
The utility model discloses a further technical scheme is: the mounting holes of the fixed mounting plate are divided into two rows, and the row interval is 8-12 cm.
The utility model discloses a further technical scheme is: the high-temperature-resistant fiber is filled in the back of the guide angle plate.
The utility model has the advantages that:
1. the energy-saving plate and the guide angle plate are combined into a combined energy-saving device which is respectively arranged at the proper position of the inner wall of the furnace, the inner surface and the outer surface of the energy-saving device form a new effective radiation surface, the radiation area is increased, wherein the energy-saving plate arranged on the radiation wall of the furnace lining forms a new radiation surface vertical to the radiation wall surface of the furnace wall, the inner surface area of a hearth is increased, the furnace expansion opening degree is improved, meanwhile, the corresponding volume of the original design of the hearth is properly reduced, the fuel put into the hearth in unit time is correspondingly reduced, and the total heat released by the energy-saving plate and the guide angle plate is correspondingly increased; the guide angle plate is fixedly installed at the included angle position in the furnace, and after the guide angle plate is flatly paved on the top of the furnace lining material and the furnace wall, the directional emission of infrared rays is formed, the arrival rate and the irradiance of heat rays are improved, the radiation heat transfer is enhanced, and the problem that the heat rays at the included angle in the furnace are seriously lost, which cannot be solved by the existing furnace energy-saving technology, is solved;
2. the utility model adds the mixture with higher blackness in the base material, improves the emissivity of the heat radiation thereof to adapt to the spectrum change in the furnace, and the energy-saving device is made of high-temperature heat-resistant material, so that the high temperature is not aged, and the emissivity of the radiation is not changed in a long-term high-temperature state;
3. the energy-saving plate and the guide angle plate are bonded and sintered into a whole by high-temperature cement paste and the inner wall of the furnace, and the energy-saving plate and the guide angle plate are fixedly installed by ceramic screws through the fixed installation holes and the fixed installation plate installation holes, so that the installation is firm, and the energy-saving plate and the guide angle plate do not fall off after being normally used for 10 years.
Drawings
FIG. 1 is a schematic structural view of the combined energy saving device of the present invention installed in a kiln;
FIG. 2 is a schematic structural view of the energy-saving plate with arc herringbone grooves of the present invention;
FIG. 3 is a schematic structural view of the energy-saving plate with arc wave-shaped grooves of the present invention;
FIG. 4 is a schematic structural view of the guide angle plate of the present invention;
in the figure: 1-industrial kiln, 2-energy-saving plate, 21-arc herringbone groove, 22-fixed mounting hole, 23-arc wave groove, 3-guide angle plate, 31-fixed mounting plate, 32-fixed mounting plate mounting hole and 4-high temperature resistant fiber.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows:
as shown in fig. 1 to 4, a combined energy-saving device comprises a rectangular energy-saving plate 2 and a circular arc-shaped guide angle plate 3, wherein the rectangular energy-saving plate 2 and the circular arc-shaped guide angle plate 3 are made of high-temperature-resistant and high-radiation-resistant materials, the front surface of the energy-saving plate 2 is provided with a plurality of circular arc herringbone grooves 21 or circular arc wavy grooves 23 which are arranged in sequence, and the front surface of the guide angle plate is provided with a plurality of circular arc herringbone grooves 21 which are arranged in sequence;
the energy-saving plates 2 are sequentially and tightly arranged and fixedly arranged on the inner wall of the industrial kiln, the guide angle plates 3 are sequentially and tightly arranged and fixedly arranged at the included angle parts in the industrial kiln, the inner wall of the kiln is completely covered by the plurality of energy-saving plates 2, the included angle parts in the kiln are completely covered by the plurality of guide angle plates 3, and the joints of the energy-saving plates 2 and the guide angle plates 3 are mutually and tightly connected; the included angle part comprises an included angle between the end wall and the side wall and an included angle of the inner wall of the furnace.
The energy-saving plate is provided with five fixed mounting holes, wherein four of the fixed mounting holes are side holes, and one fixed mounting hole is a central hole;
two fixed mounting plates are arranged at two ends of the guide angle plate along the tangential direction of the end point edge of the cambered surface and inwards inclined by 15-30 degrees, the fixed mounting plates and the guide angle plate are connected into a whole, the fixed mounting plates and the guide angle plate are consistent in width, the width is set to be 30-60 cm, and 4-6 fixed mounting plate mounting holes are formed in the fixed mounting plates;
the back surfaces of the energy-saving plate and the guide angle plate are rough, the energy-saving plate and the guide angle plate are bonded and sintered with the inner wall of the furnace into a whole by high-temperature cement paste, and the energy-saving plate and the guide angle plate are fixedly installed by ceramic screws through the fixed installation holes and the fixed installation plate installation holes.
Preferably, the energy-saving plate 2 is rectangular in overall shape, five fixing and mounting holes 22 are formed in the energy-saving plate 2, four of the fixing and mounting holes are side holes, the minimum distance between each side hole and the edge of the energy-saving plate is not less than 10cm, the diameter of each side hole is 3-5 mm, one side hole is a central hole, the central hole is located in the center of the energy-saving plate, and the diameter of the central hole is 5-8 mm.
Preferably, the arc diameter of the arc herringbone grooves or the arc wavy grooves on the energy-saving plate 2 is 1-2 cm, and the distance between the grooves is 1-2 cm.
Preferably, the energy-saving plate 21 is 30-60 cm long, 20-30 cm wide and 2-5 cm thick.
Preferably, the thickness of the arc surface of the guide angle plate 3 is 2-5 cm, and the arc diameter of the arc surface is 10-30 cm.
Preferably, two fixed mounting plates 31 are arranged at two ends of the guide angle plate 3 along the tangential direction of the end point edge of the arc surface and in the direction inclined inwards by 15-30 degrees, the fixed mounting plates 31 and the guide angle plate 3 are connected into a whole, the fixed mounting plates 31 and the guide angle plate 3 are consistent in width and are 30-60 cm in width, and 4-6 fixed mounting plate mounting holes 32 are formed in the fixed mounting plates 31.
Preferably, the minimum distance between the fixed mounting plate mounting hole 32 and the edge of the fixed mounting plate 31 is more than or equal to 10cm, and the diameter of the fixed mounting plate mounting hole 32 is 3-5 mm.
Preferably, the mounting holes 32 of the fixed mounting plate are divided into two rows, and the row interval is 8-12 cm.
Preferably, the furnace further comprises high-temperature resistant fibers 4 matched with the guide angle plate 3, and the high-temperature resistant fibers 4 are filled in gaps between the guide angle plate 3 and an included angle in the furnace.
In the technical scheme, the preparation of the energy-saving plate 2 and the guide angle plate 3 comprises the following steps:
a. preparing a high-temperature-resistant high-radiation material mixture: fully stirring and mixing 2-6% of silicon carbide, 5-8% of chromium trioxide, 4-8% of manganese dioxide, 2-4% of ferric oxide, 2% of silica sol, 2% of rare earth raw material and the balance of corundum mullite, alumina or other high-temperature refractory materials, and then sintering at the high temperature of 1300-1500 ℃, wherein the sintering time is 4 hours, so as to obtain a high-temperature-resistant high-radiation material mixture;
b. b, using 70% of mullite corundum powder as a base material, adding the high-temperature-resistant high-radiation-resistant material mixture prepared in the step a, and respectively forming an energy-saving plate blank body with a plurality of sequentially arranged arc herringbone grooves or arc wave-shaped grooves and a heat ray guide angle plate blank body with a plurality of sequentially arranged arc herringbone grooves and an arc shape by using a friction press with the pressure of 300 tons, wherein one surface of each of the two formed blank bodies with the arc herringbone grooves or the arc wave-shaped grooves is a front surface, and the front surface is smooth and the back surface is rough;
c. b, placing the energy-saving plate blank body and the guide angle plate blank body obtained in the step b into a tunnel dryer for drying treatment, wherein the inlet temperature of the tunnel dryer is set to be 40-50 ℃, the highest drying temperature in the tunnel dryer is set to be 130 ℃, the drying time is 48 hours, and the blank body with the water content less than or equal to 1.5% is obtained after drying;
d. c, placing the energy-saving plate blank body and the guide angle plate blank body obtained in the step c into a tunnel kiln for sintering, wherein the sintering temperature is 1550 ℃, the sintering heat preservation time is 10 hours, and the volume density obtained after sintering is 2.7g/cm3The energy-saving plate and the guide angle plate are provided with black bodies with compressive strength of 5-15 Mpa, and are resistant to high temperature and high radiation;
e. and d, taking the energy-saving plate and the guide angle plate obtained by sintering in the step d out of the tunnel kiln after heat preservation for 10 hours, and naturally cooling the energy-saving plate and the guide angle plate to the normal temperature to obtain a finished product of the energy-saving plate and the guide angle plate.
Energy saving plates with arc herringbone grooves as shown in FIG. 2 or energy saving plates with arc wavy grooves as shown in FIG. 3 and guide angle plates as shown in FIG. 4 can be prepared according to the above process steps.
In the technical field of steel smelting, according to the heat transfer model theory of a heating furnace, the increase degree of the total heat transfer area determines the increase degree of the heating capacity of a hearth, and under the condition of increasing the surface area of the inner part of the hearth by one time, namely increasing the furnace circumference extension degree by one time, the heating capacity of a billet in a unit time period is improved by more than 15 percent, so that the method is one effective way for realizing energy conservation and emission reduction, and an arc herringbone groove or an arc wave groove is arranged on the front side of an energy-saving device, namely one end facing a heated workpiece of the hearth. The heat transfer area of the hearth can be obviously increased, so that the furnace enclosure extension degree is further improved, and the energy-saving reconstruction effect of the heating furnace is improved.
In the design of an industrial furnace, after the size of a hearth is determined, the area of the inner wall of the furnace is correspondingly determined, and if the area of the inner lining of the furnace is increased to strengthen heat transfer, the fuel consumption in unit time is obviously reduced; therefore, the front surface of the energy-saving plate, namely one end facing to the heated workpiece of the hearth, is provided with the arc herringbone groove or the arc wave-shaped groove, so that the surface of the energy-saving plate is obviously concave-convex, the aim of increasing the inner surface area of the hearth is fulfilled, namely the furnace enclosure opening degree is improved to enhance the heat exchange of the hearth, the heating speed of the hearth is improved, the energy consumption is reduced, and the heating quality and the yield of the heated workpiece are improved.
In the technical scheme, the energy-saving plate and the energy-saving plate are combined with each other, the guide angle plate and the guide angle plate are combined with each other, the energy-saving plate and the guide angle plate are combined to form a combined energy-saving device which is arranged in a kiln and is formed by combining a plurality of units, the units are all made of high-heat-storage refractory materials, materials with higher blackness are added according to percentage to be fully stirred and then are subjected to fusion casting, sintering and mechanical or isostatic pressing forming, the combined energy-saving device with a black body and high heat storage, high emissivity, strong thermal shock resistance, good thermal stress resistance and strong impact resistance is manufactured, and the hot efficiency of the kiln is effectively improved.
For a fuel furnace, hot air flows continuously in the furnace and contacts with the inner wall of the furnace in the circulating process, when the hot air flows to an included angle between the furnace top and the furnace wall, and between the end wall and the side wall, pit flow and slow flow are generated, and the diffused heat ray is finally dissipated through the furnace wall. Because the part of heat rays can not be absorbed by the heated workpiece, the difference between the central temperature and the side source temperature in the furnace is 60-100 ℃, the workpiece is not heated uniformly, in order to ensure that all parts of the workpiece reach the required temperature, the only method at the moment is to continuously increase the fuel in the furnace to strengthen the combustion, thus the steel pause energy consumption is increased. The guiding angle plate has the effects that the diffuse radiation heat rays from all directions are absorbed by the arc herringbone grooves and are quickly transmitted to the whole guiding angle plate, and after the guiding angle plate fully stores heat, the guiding angle plate is emitted into the furnace and finally absorbed by a workpiece. Because of the formation of the directional emission of infrared rays, the arrival rate and irradiance of heat rays are improved to the maximum extent, and the radiation heat transfer is enhanced, so that the energy saving rate of the fuel is improved by 12-20%.
The inner surface and the outer surface of the energy-saving device form new effective radiation surfaces, and the radiation area is increased. The strong heat radiation energy-saving device arranged on the furnace lining radiation wall forms a new radiation surface vertical to the radiation wall surface. The guide angle plate is fixedly arranged at the included angle part in the furnace, so that the problem of serious heat ray loss of the included angle in the furnace, which cannot be solved by the existing furnace energy-saving technology, is solved. After the combined energy-saving device is paved on the top of the furnace lining material and the furnace wall, the corresponding volume of the original design of the hearth is properly reduced, the fuel put into the hearth in unit time is correspondingly reduced, and the total heat released by the fuel is correspondingly increased, so that the energy consumption is reduced, the aim of saving energy is fulfilled, the furnace lining material is protected, and the service life of the furnace is prolonged. According to the infrared physical theory, the surface of the object is arc-shaped, so that more heat rays can be absorbed conveniently, when the heat rays which cannot do work in the furnace are absorbed by the surface of the energy-saving device, the heat rays rapidly enter the base body, complete sufficient heat storage through repeated radiation in the base body and the arc herringbone groove, and then perform directional radiation to the furnace through the herringbone groove. When the temperature of the energy-saving device rises to be more than 20 ℃ higher than the process temperature in the furnace, the emitted wave spectrum starts to be concentrated to infrared short wave spectrum, the wavelength is 3-2000 microns, the cold and hot circulation performance is good, generally, the wave spectrum of about 1-5UM accounts for 76% of the whole wave spectrum, in the wave spectrum range, the wave spectrum is basically the same as the absorption frequency of a workpiece, the wave spectrum can be more effectively absorbed by the workpiece, the heat efficiency (similar to the property of a light wave furnace, all electromagnetic waves) is improved, and when the temperature difference becomes small and reaches the heat balance, the absorption and the emissivity of the furnace lining are basically. The utility model discloses add the higher mixture of blackness in the base member material, improve its emissivity to the wave spectrum changes in the adaptation stove.
The energy-saving plates and the guide angle plates are fixedly arranged on the furnace lining material, so that the heat loss of the furnace lining material is correspondingly reduced, the temperature of the outer surface of the hearth is reduced by 10-60 ℃, and the central temperature of the hearth can be increased by 20-100 ℃. The direct contact between the furnace lining material and the hearth material is reduced, the possibility of corrosion and scouring is reduced, the furnace temperature is stable, and the radiation wave bandwidth is stable. Because the guide angle plate is arranged, the disordered heat rays with the included angle are changed into the ordered heat rays, the temperature in the furnace is uniformly distributed, the temperature control is accurate, the high temperature resistance and the thermal vibration resistance are good, and the service life of the furnace body can be prolonged.
As mentioned above, after the combined energy-saving device regulates and controls the heat ray, the heat ray in the furnace directly irradiates to the heated workpiece, the arrival rate and auxiliary illumination of the heat ray are improved, and the radiation heat transfer is enhanced. The industrial heating furnace kiln can reach the following performance indexes:
1. the energy saving rate is 10-15%, the productivity of the furnace is improved by 10-20%, the vertical temperature difference of the hearth is reduced by about 60%, and the service life of the furnace lining is prolonged by more than one time.
2. Has environmental protection effect, and reduces the exhaust emission because the complete combustion of the fuel is strengthened.
3. The construction is simple, safe and reliable, the original furnace body does not need to be changed during the construction, the safe use of the furnace is not influenced after the transformation, the original production operation process of the furnace is not changed, and the construction period is 5 to 8 days.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A combined energy-saving device is characterized in that: the energy-saving and energy-saving guide angle plate comprises a rectangular energy-saving plate and an arc-shaped guide angle plate, wherein the rectangular energy-saving plate and the arc-shaped guide angle plate are prepared from high-temperature-resistant and high-radiation-resistant materials, a plurality of arc herringbone grooves or arc wavy grooves which are sequentially arranged are arranged on the front surface of the energy-saving plate, and a plurality of arc herringbone grooves which are sequentially arranged are arranged on the front surface of the guide angle plate;
the energy-saving plates are sequentially and tightly arranged and fixedly arranged on the inner wall of the industrial kiln, the guide angle plates are sequentially and tightly arranged and fixedly arranged at the included angle part in the industrial kiln, the inner wall of the kiln is completely covered by the plurality of energy-saving plates, the included angle part in the kiln is completely covered by the plurality of guide angle plates, and the joints of the energy-saving plates and the guide angle plates are mutually and tightly connected;
the energy-saving plate is provided with five fixed mounting holes, wherein four of the fixed mounting holes are side holes, and one fixed mounting hole is a central hole;
two fixed mounting plates are arranged at two ends of the guide angle plate along the tangential direction of the end point edge of the cambered surface and inwards inclined by 15-30 degrees, the fixed mounting plates and the guide angle plate are connected into a whole, the fixed mounting plates and the guide angle plate are consistent in width, the width is set to be 30-60 cm, and 4-6 fixed mounting plate mounting holes are formed in the fixed mounting plates;
the back surfaces of the energy-saving plate and the guide angle plate are rough, the energy-saving plate and the guide angle plate are bonded and sintered with the inner wall of the furnace into a whole by high-temperature cement paste, and the energy-saving plate and the guide angle plate are fixedly installed by ceramic screws through the fixed installation holes and the fixed installation plate installation holes.
2. The modular energy saving device of claim 1, wherein: the minimum distance between the side hole and the edge of the energy-saving plate is not less than 10cm, the diameter of the side hole is 3-5 mm, the center hole is located in the center of the energy-saving plate, and the diameter of the center hole is 5-8 mm.
3. The modular energy saving device of claim 1, wherein: the arc diameter of a plurality of arc herringbone grooves or arc wavy grooves on the energy-saving plate is 1-2 cm, and the distance between the grooves is 1-2 cm.
4. The modular energy saving device of claim 1, wherein: the energy-saving plate is 30-60 cm long, 20-30 cm wide and 2-5 cm thick.
5. The modular energy saving device of claim 1, wherein: the thickness of the arc surface of the guide angle plate is 2-5 cm, and the arc diameter of the arc surface is 10-30 cm.
6. The modular energy saving device of claim 1, wherein: the included angle part comprises an included angle between the end wall and the side wall and an included angle of the inner wall of the furnace.
7. The modular energy saving device of claim 1, wherein: the minimum distance between the fixed mounting plate mounting hole and the edge of the fixed mounting plate is not less than 10cm, and the diameter of the fixed mounting plate mounting hole is 3-5 mm.
8. The modular energy saving device of claim 7, wherein: the mounting holes of the fixed mounting plate are divided into two rows, and the row interval is 8-12 cm.
9. The modular energy saving device of claim 1, wherein: the high-temperature-resistant fiber is filled in the back of the guide angle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022793077.2U CN213955992U (en) | 2020-11-27 | 2020-11-27 | Combined energy-saving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022793077.2U CN213955992U (en) | 2020-11-27 | 2020-11-27 | Combined energy-saving device |
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| CN213955992U true CN213955992U (en) | 2021-08-13 |
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