CN214148110U - Heating structure of ground low-temperature radiation electric heating rod - Google Patents
Heating structure of ground low-temperature radiation electric heating rod Download PDFInfo
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- CN214148110U CN214148110U CN202021951916.2U CN202021951916U CN214148110U CN 214148110 U CN214148110 U CN 214148110U CN 202021951916 U CN202021951916 U CN 202021951916U CN 214148110 U CN214148110 U CN 214148110U
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Abstract
The utility model belongs to the technical field of heating system, concretely relates to ground low temperature radiation electric heat stick heating structure, include: the heat insulation layer is arranged above the structural floor slab; the electric heating layer is arranged above the heat insulation layer; a fill layer disposed above the heating layer; the decorative surface layer is arranged above the filling layer; the electric heating layer is an electric heating rod, the electric heating rod is composed of graphite and a resin insulation skin, the graphite is wrapped in the resin insulation skin, and the electric heating rods and a power line are connected into a net shape through joints and communicated with a power supply; the electric heating floor is characterized by further comprising a ground temperature probe, wherein the ground temperature probe is tightly attached to the electric heating layer and is connected with a temperature controller arranged on the side wall, and the temperature controller is communicated with a power supply. The electric heating system of this scheme of adoption has effectively solved among the prior art electric heating device heat preservation effect poor, factor of safety is low, take the electric scheduling problem.
Description
Technical Field
The utility model belongs to the technical field of heating system, concretely relates to ground low temperature radiation electric heat stick heating structure.
Background
At present, two main types of water and steam heating and electric heating are mainly adopted for indoor heating of buildings, and equipment such as a heat supply pipeline, a heating boiler and the like needs to be laid indoors and outdoors, so that the one-time investment is large, the maintenance is needed all the year round, the heating effect is not easy to control, the metering is difficult, and the energy conservation and the environmental protection are not facilitated. At present, electric heating is mostly adopted, which is obviously superior to the traditional heating mode and has the advantages of less investment, simple maintenance, automatic temperature control, convenient metering, energy conservation and the like. Electric heating generally uses air conditioner and electric heat membrane ground to heat for indoor heating. The air conditioner has a limited application range, is generally suitable for small places such as houses, villas, offices and the like, is flexible and convenient to use, but has the defects that space heat floats on the top layer during heat supply, the heat is uneven in cold and heat, and the heat is transferred in a convection mode, so that people feel dry and dizzy when being in an air-conditioned room for a long time; in addition, the air conditioner has high maintenance cost and large power consumption, and under the heating working condition of the system, 3 pieces of air conditioner heating power is 2800W, the auxiliary electric heating is 1500W, and the continuous heating consumes 4.3 degrees of electricity for one hour.
And the electric heat membrane uses for a long time, also appears the material easily ageing easily, electric leakage, the poor scheduling problem of heat preservation effect, these problems significantly reduce electric heat membrane floor heating device's life to can not satisfy people's user demand.
In view of the above, there is a need to improve a ground electric heating system in the prior art to solve the problems of electricity consumption, poor heat preservation effect and low safety factor of the electric heating equipment.
Disclosure of Invention
The utility model aims to solve the problems of poor heat preservation effect, low safety factor, electricity consumption and the like of the electric heating device in the prior art, and provides a heating structure of a ground low-temperature radiation electric heating rod.
Realize the utility model discloses the technical scheme of purpose as follows:
a ground low-temperature radiation electric heating rod heating structure comprises:
the heat insulation layer is arranged above the structural floor slab;
the electric heating layer is arranged above the heat insulation layer;
a fill layer disposed above the electrical heating layer;
the decorative surface layer is arranged above the filling layer;
the electric heating layer is an electric heating rod, the electric heating rod is composed of graphite and a resin insulation skin, the graphite is wrapped in the resin insulation skin, and a plurality of electric heating rods are connected with a power line in parallel by adopting joints and are communicated with a power supply;
the electric heating floor is characterized by further comprising a ground temperature probe, wherein the ground temperature probe is tightly attached to the electric heating layer and is connected with a temperature controller arranged on the side wall, and the temperature controller is communicated with a power supply.
As a further improvement of the solution, the insulating layer is an extruded polystyrene foam sheet with a thickness of 20 to 50 mm.
As a further improvement of the scheme, the decorative surface layer is a floor tile or a composite floor;
when the decorative surface layer is a floor tile, the filling layer is preferably C15 pea stone concrete with the bean particle size of 5-12mm, and an equipotential power grid is secretly laid in the filling layer;
when the decorative surface layer is a composite floor, the filling layer is changed into a heat equalizing layer, and the heat equalizing layer is preferably an aluminum plate with the thickness of 0.03 mm.
As a further improvement of the scheme, the equipotential power grid adopts a galvanized steel wire mesh with the diameter of 3 mm.
As a further improvement of the scheme, when the decorative surface layer is a floor tile, the ground temperature probe is arranged in the filling layer.
As a further improvement of the scheme, when the decorative surface layer is the composite floor, the ground temperature probe is arranged in the heat insulation layer.
As a further improvement of the scheme, the power density of the ground temperature probe is not more than 200w/m2。
As a further improvement of the scheme, the number of the electric heating rods of the electric heating layer satisfies the following relational expression:
N=（1+k）P/Pm
n-the number (m) of the required electric heating rods; p-room thermal load value (w); pm-the effective power (w) of each meter of electric heating rod to a heating room; k-additional operating coefficients.
As a further improvement of this solution, the room heat load value during heating satisfies the following relational expression:
P=α*Qj+qh*M
Qj=ß*f*k1*（tn-tw）
wherein, alpha-correction coefficient of intermittent heating; qj-room base heat load (w); qh-average heat transfer quantity between rooms in unit area, and 7w/m is taken2(ii) a M-Room area of use (M)2) (ii) a Beta-envelope structure temperature difference correction coefficient; f-area of the enclosure (m)2）；k1-heat transfer coefficient of the building envelope ([ w/(m))2K)), or a pharmaceutically acceptable salt thereof; tn-heating indoor temperature (deg.C); tw-heating outdoor temperature (deg.c).
As a further improvement of the scheme, the installation position of the temperature controller is equal to the height of the lighting switch, and the PVC sleeve is wrapped outside the connecting wire between the temperature controller and the ground temperature probe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) compared with the prior art, the heating structure of the ground low-temperature radiation electric heating rod of the utility model has the advantages that the heat insulation layer, the electric heating layer, the filling layer and the decorative surface layer are sequentially paved on the structural floor slab to form the whole electric heating system, the electric heating layer adopts the electric heating rod (electric heating strip), the far infrared emissivity, namely the electric heating conversion efficiency is as high as 90.3 percent, the loss of heat in the transmission process can be greatly reduced, the electric resources are saved, the heating effect is good, the heat transfer speed is high, meanwhile, the far infrared ray can be absorbed by the human body, the cells are activated, the microcirculation is improved, the metabolism is promoted, and the heating effect is comfortable; in addition, the electric heating rod also has the function of self-limiting temperature, the surface working temperature does not exceed 60 ℃, and the safety performance is good; the electric heating layer is directly connected with a power supply, so that household metering can be realized, and the temperature can be controlled in different chambers and different time.
(2) When the decorative surface layer adopts floor tiles or stone materials, the electric heating rod system should be reserved with a height of 9-10cm, so that the filling layer adopts cement mortar to cover the heating component, the heating component is evenly leveled, and the maintenance effect is achieved; when the decorative surface layer adopts a composite floor, the electric heating rod system only needs to reserve a height of 5cm, so that the filling layer is changed into the uniform heating layer, and the aluminum plate is directly adopted for laying.
(3) The utility model discloses a ground low temperature radiation bar heater structure sets up the ground temperature probe on hugging closely the electric heating layer or below, when guaranteeing that the electrical heating equipment surface temperature reaches the upper limit value of settlement, can automatic cutout power, plays the effect of protection.
(4) The utility model discloses a ground low temperature radiation electric heat stick heating structure can be selected the quantity of electric heat stick in the electric heating layer according to the regional area size of will heating to reach energy-conserving, efficient purpose, simultaneously, can also guarantee that the heating effect is more comfortable.
Drawings
FIG. 1 is a schematic view of the electric heating system with floor tiles and stone surface layers;
FIG. 2 is a schematic view of the installation structure of the ground temperature probe of the temperature controller for floor tiles and stone surface layers;
FIG. 3 is a schematic structural view of the electric heating system of the composite floor surface layer of the present invention;
FIG. 4 is a schematic view of the installation structure of the ground temperature probe of the temperature controller for composite floor surface layer;
wherein, 1, a structural floor slab; 2. a heat insulating layer; 3. an electric heating layer; 4. a filling layer; 5. an equipotential power grid; 6. floor tiles; 7. a side heat insulating layer; 8. a ground temperature probe; 9. PVC sleeves; 10. a temperature controller; 11. heat equalizing layer; 12. a composite floor board.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
referring to fig. 1 and 2, a ground low-temperature radiation electric heating rod heating structure of the present embodiment includes: the heat insulation layer 2 is arranged above the structural floor slab 1; the electric heating layer 3 is arranged above the heat insulating layer 2; a filling layer 4, wherein the filling layer 4 is arranged above the electric heating layer 3; the decorative surface layer is arranged above the filling layer 4; the electric heating layer 3 is an electric heating rod, the electric heating rod is composed of graphite and a resin insulation skin, the graphite is wrapped in the resin insulation skin, a plurality of electric heating rods are connected with a power line in parallel by adopting a connector and then are communicated with a power supply, and the connector is a special waterproof and leakproof electric connector; still include ground temperature probe 8, ground temperature probe 8 hugs closely electric heating layer 3 to link to each other with temperature controller 10 that sets up on the side wall, temperature controller 10 communicates with each other with the power, wherein ground temperature probe's power density is not more than 200w/m2。
The electric heating rods are connected in parallel, each electric heating rod (strip) is composed of an elliptical graphite resin-coated insulating sheath, the long axis is not less than 8mm, the short axis is not less than 5mm, the electric heating rods (strips) are connected with a power line through a special connector, and heat is released after the electric heating rods are electrified to meet the heating requirement.
The graphite is specifically conductive carbon, and the resin is an insulating sheath made of carbon black, polypropylene, ethylene-propylene copolymer, or the like. The heating principle of the electric heating rod is as follows: the electric heating strip is manufactured according to the principle that the heat dissipation capacity is increased due to the self temperature change of the electrified graphite, when current passes through the electric heating strip, the distance between graphite molecules is increased, the resistance is reduced, the heat productivity of the electric heating strip is increased, and the heating requirement is met; when the temperature of the electric heating strip reaches 60 ℃, the outer wrapping resin material limits the increase of the spacing between graphite molecules, so that the resistance is increased, the heat productivity is reduced, the surface temperature is reduced, and the element is prevented from being burnt by local overheating.
The ground temperature probes 8 can be provided with a plurality of ground temperature probes which are evenly distributed, and the power density of the ground temperature probes is not more than 200w/m2。
Compared with the prior art, the heat insulation layer 2, the electric heating layer 3, the filling layer 4 and the decorative surface layer are sequentially paved on the structural floor slab to form the whole electric heating system, the electric heating layer 3 adopts an electric heating rod (electric heating strip), the far infrared emissivity, namely the electric heating conversion efficiency is as high as 90.3%, the loss of heat in the transmission process can be greatly reduced, the electric resources are saved, the heating effect is good, the heat transfer speed is high, meanwhile, the far infrared rays can be absorbed by the human body, cells are activated, the microcirculation is improved, the metabolism is promoted, and the heating effect is comfortable; in addition, the electric heating rod also has a self-temperature-limiting function, and can cut off unnecessary current, so that the electric heating rod is low in power consumption, the surface working temperature does not exceed 60 ℃, and the safety performance is good; the electric heating layer 3 is directly connected with a power supply, so that household metering can be realized, and the temperature can be controlled in different chambers and different time.
As a further development of the solution, the insulating layer 2 is an extruded polystyrene foam sheet with a thickness of 20 to 50 mm. Because the hard film formed on the surface of the extruded polystyrene foam plastic plate is uniform and flat, and the interior of the extruded polystyrene foam plastic plate is completely closed and foamed continuously and uniformly to form a honeycomb structure, the extruded polystyrene foam plastic plate has the characteristics of high compression resistance, light weight, no water absorption, air impermeability, wear resistance and no degradation, and is the best material for the heat insulation layer 2.
In addition, a side heat insulation layer 7 is arranged at the connection part between the whole electric heating system and the side wall, so that the wall and other electric circuits arranged on the wall are protected, and meanwhile, a heat bridge is prevented from being generated.
It should be noted that the temperature controller 10 should be disposed at a position representing the indoor temperature, and there are no other heat sinks and shields around the temperature controller 10, and the temperature controller is not directly irradiated by sunlight.
Example 2
Compared with the embodiment 1, in the heating structure of the ground low-temperature radiation electric heating rod of the embodiment, further, the decorative surface layer is a floor tile 6 or a composite floor 12;
as shown in fig. 1 and fig. 2, when the decorative surface layer is a floor tile 6, the filling layer 4 is preferably C15 pea concrete with a bean grain size of 5-12mm, and an equipotential network 5 is concealed in the filling layer 4; the equipotential power grid 5 is made of galvanized steel wire meshes with the diameter of 3mm, and the ground temperature probe 8 is arranged in the filling layer 4.
As shown in fig. 3 and 4, when the decorative surface layer is a composite floor 12, the filling layer 4 is changed to a heat-equalizing layer 11, and the heat-equalizing layer 11 is preferably an aluminum plate with a thickness of 0.03mm, and the ground temperature probe 8 is disposed in the heat-insulating layer 2.
When the decorative surface layer is made of floor tiles 6 or stone materials, the height of 9-10cm is reserved in the electric heating rod system, therefore, the filling layer 4 is made of cement mortar to cover the heating assembly, so that the heating assembly is evenly leveled and has a maintenance effect, and in addition, an equipotential power grid 5 is arranged in the filling layer 4 to have a grounding protection effect; when the decorative cover layer adopts laminate flooring 12, the electric rod system only needs to reserve the height of 5cm, consequently, filling layer 4 changes into the even heat layer 11, directly adopt aluminum plate lay can, need notice, when not having the filling layer, should guarantee that connecting cable and part imbed the heat insulation layer completely, and the fluting of heat insulation layer should be fit for with connecting cable and part size.
Example 3
Compared with the embodiment 2, in the heating structure of the ground low-temperature radiation electric heating rod of the embodiment, further, the number of the electric heating rods of the electric heating layer 3 satisfies the following relational expression:
N=（1+k）P/Pm
n-the number (m) of the required electric heating rods; p-room thermal load value (w); pm-the effective power (w) of each meter of electric heating rod to a heating room; k-additional operating coefficients.
As a further improvement of this solution, the room heat load value during heating satisfies the following relational expression:
P=α*Qj+qh*M
Qj=ß*f*k1*（tn-tw）
wherein, alpha-correction coefficient of intermittent heating; qj-room base heat load (w); qh-average heat transfer quantity between rooms in unit area, and 7w/m is taken2(ii) a M-Room area of use (M)2) (ii) a Beta-envelope structure temperature difference correction coefficient; f-area of the enclosure (m)2）；k1-heat transfer coefficient of the building envelope ([ w/(m))2K)), or a pharmaceutically acceptable salt thereof; tn-heating indoor temperature (deg.C); tw-heating outdoor temperature (deg.c).
The power supply in the above embodiments adopts various known power supply circuit structures, a power distribution loop of the power supply is to be led from a distribution box of a private branch office in a house, each branch power distribution loop is to be separated from power utilization systems such as lighting, sockets and air conditioners and is separately arranged, specifically, an electric heating rod is connected to the distribution box through a power line, a distribution line adopts a residual current operated protector, the residual current operated protector has a function of automatically cutting off a fault power supply, and the residual current operated current value is not to be larger than 30 mA.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a ground low temperature radiation bar electric heating structure which characterized in that includes:
the heat insulation layer (2), the heat insulation layer (2) is arranged above the structural floor slab (1);
the electric heating layer (3) is arranged above the heat insulating layer (2);
a filler layer (4), the filler layer (4) being disposed above the electrical heating layer (3);
the decorative surface layer is arranged above the filling layer (4);
the electric heating layer (3) is an electric heating rod, the electric heating rod is composed of graphite and a resin insulation skin, the graphite is wrapped in the resin insulation skin, and a plurality of electric heating rods are connected in parallel through power lines by adopting connectors and are communicated with a power supply;
still include ground temperature probe (8), ground temperature probe (8) are hugged closely electric heating layer (3) to link to each other with temperature controller (10) that set up on the side wall, temperature controller (10) communicate with each other with the power.
2. A ground low-temperature radiation electric heating bar heating construction as claimed in claim 1, wherein the heat insulating layer (2) is an extruded polystyrene foam plastic plate with a thickness of 20-50 mm.
3. A ground low-temperature radiant electric heating rod heating construction as claimed in claim 1, wherein the decorative surface layer is a floor tile (6) or a composite floor (12);
when the decorative surface layer is a floor tile (6), the filling layer (4) is C15 pea stone concrete with the bean particle size of 5-12mm, and an equipotential power grid (5) is secretly laid in the filling layer (4);
when the decorative surface layer is a composite floor (12), the filling layer (4) is changed into a heat-equalizing layer (11), and the heat-equalizing layer (11) is an aluminum plate with the thickness of 0.03 mm.
4. A ground low-temperature radiant electric heating rod heating structure as claimed in claim 3, wherein the equipotential power grid (5) adopts a galvanized steel wire mesh with a diameter of 3 mm.
5. A ground low-temperature radiation electric heating bar heating construction according to claim 3, characterized in that the ground temperature probe (8) is arranged in the filling layer (4).
6. A ground low-temperature radiant electric heating rod heating construction as claimed in claim 3, wherein the ground temperature probe (8) is arranged in the heat insulating layer (2).
7. A ground low-temperature radiant electric heating rod heating construction as claimed in any one of claims 5-6, characterized in that the power density of the ground temperature probe (8) is not more than 200w/m2。
8. A ground low-temperature radiation electric heating rod heating construction according to claim 1, characterized in that the number of electric heating rods of the electric heating layer (3) satisfies the following relational expression:
N=（1+k）P/Pm
n-the number (m) of the required electric heating rods; p-room thermal load value (w); pm-the effective power (w) of each meter of electric heating rod to a heating room; k-additional operating coefficients.
9. A heating structure with ground low-temperature radiation electric heating bar as claimed in claim 2, wherein the installation position of the temperature controller (10) is equal to the height of the lighting switch, and the outside of the connecting line between the temperature controller (10) and the ground temperature probe (8) is wrapped with a PVC casing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021951916.2U CN214148110U (en) | 2020-09-09 | 2020-09-09 | Heating structure of ground low-temperature radiation electric heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021951916.2U CN214148110U (en) | 2020-09-09 | 2020-09-09 | Heating structure of ground low-temperature radiation electric heating rod |
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| CN214148110U true CN214148110U (en) | 2021-09-07 |
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| CN202021951916.2U Active CN214148110U (en) | 2020-09-09 | 2020-09-09 | Heating structure of ground low-temperature radiation electric heating rod |
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