CN110344518A - A kind of building fire protection wall unit - Google Patents
A kind of building fire protection wall unit Download PDFInfo
- Publication number
- CN110344518A CN110344518A CN201910687164.9A CN201910687164A CN110344518A CN 110344518 A CN110344518 A CN 110344518A CN 201910687164 A CN201910687164 A CN 201910687164A CN 110344518 A CN110344518 A CN 110344518A
- Authority
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- China
- Prior art keywords
- fire
- heat pipe
- proof plate
- protection wall
- fire protection
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
Abstract
The invention discloses a kind of building fire protection wall units, the steel column (13) including vertical distribution；The left and right sides of steel column (13) is respectively arranged with two pieces of thermoelectric generation films (1)；The lateral wall of two pieces of thermoelectric generation films (1), difference are directly in contact with the copper sheet of one piece of vertical distribution (11)；Two pieces of copper sheets (11), are connected with the left and right ends of multiple heat pipes respectively；Heat pipe, the high temperature heat for one end to be subject to are transmitted to one end of low temperature, realize the transfer of heat.A kind of building fire protection wall unit disclosed by the invention, can in the case of fire, in time by the other end of the heat derives of fire side to firewall, reduce the temperature of fire side wall surface, to which the radiant heat of fire generation be effectively reduced, the harm of fire bring is reduced, is of great practical significance.
Description
Technical field
The present invention relates to structural fire protection technical fields, more particularly to a kind of building fire protection wall unit.
Background technique
Currently, fire is to seriously endanger people's lives and properties, directly affect the most common of economic development and social stability
A kind of disaster.With the rapid development of economic construction, urban construction scale constantly expands, and building fire protection is particularly important.
Firewall can prevent the intensity of a fire and flue gas inside outside building as the building structure for being directed to fire compartment section
Portion or by being spread between interior or inside, while meeting use and needing, the internal or external space of building
Reasonably separate planning can several area of fire protection, efficiently reduce casualties and fire damage.
Radiant heat is easy to produce, the generation of radiant heat will cause very the escape of personnel when occurring for fire
Big obstruction.In addition, will cause the damage of circuit after fire occurs, causing the visibility of disaster affected people lower, be also disaster-stricken people
The escape of member causes very big obstruction.
But for existing firewall, problem above can not also be solved.
Summary of the invention
The purpose of the present invention is being directed to technological deficiency of the existing technology, a kind of building fire protection wall unit is provided.
For this purpose, the present invention provides a kind of building fire protection wall unit, the steel column including vertical distribution；
The left and right sides of steel column is respectively arranged with two pieces of thermoelectric generation films；
The lateral wall of two pieces of thermoelectric generation films is directly in contact with the copper sheet of one piece of vertical distribution respectively；
Two pieces of copper sheets, are connected with the left and right ends of multiple heat pipes respectively；
Heat pipe, the high temperature heat for one end to be subject to are transmitted to one end of low temperature, realize the transfer of heat.
Wherein, the girder steel of cross direction profiles is welded at the top of steel column；
The lower end of steel column is welded with two crossbeams being spaced apart up and down；
In the gap between two crossbeams being spaced apart up and down, it is filled with horizontal fire-proof plate；
The left and right ends of horizontal fire-proof plate are respectively fixedly connected with the lower end of a vertical fire-proof plate；
The upper end of vertical fire-proof plate, is fixedly connected with the left and right ends for the crossbeam being located at the top of steel column.
Wherein, the left and right ends of horizontal fire-proof plate are fixedly connected under vertical fire-proof plate respectively by the first automatic screw
End.
Wherein, angle steel is provided at any one girder steel angle of cut vertical with vertical fire-proof plate；
It is mutually welded with girder steel one end of each angle steel；
The other end of each angle steel is fixedly connected by the second automatic screw with vertical fire-proof plate.
Wherein, between vertical fire-proof plate and copper sheet, there is reserved gap.
Wherein, on the lateral wall of vertical fire-proof plate, also fitting is provided with composite exterior wall.
Wherein, heat pipe is the heat pipe of U-shaped.
Wherein, two pieces of copper sheets are connected with the both ends for two heat pipe combination units being distributed up and down respectively；
Each heat pipe combination unit pipes include room temperature heat pipe, moderate temperature heat pipe and the high-temperature heat pipe being sequentially distributed from top to bottom.
By the above technical solution provided by the invention as it can be seen that compared with prior art, the present invention provides a kind of buildings
Firewall unit in time by the other end of the heat derives of fire side to firewall, can reduce fire side in the case of fire
The temperature of wall surface reduces the harm of fire bring, has great production practices so that the radiant heat of fire generation be effectively reduced
Meaning.
In addition, in the state that circuit is closed, passing through thermo-electric generation for building fire protection wall unit provided by the invention
Piece can be produced electricl energy using the temperature difference inside and outside firewall, provide electric energy for emergency lighting system, facilitate the disaster-stricken people in disaster area
The escape of member creates preferably escape condition for disaster affected people.
Meanwhile building fire protection wall unit provided by the invention, except itself have fire resistance, also have heat preservation, it is heat-insulated,
Sound insulation property has the characteristics that traditional firewall.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of any one firewall unit in a kind of building fire protection wall unit provided by the invention；
Fig. 2 is the thermoelectric generation film of any one firewall unit in a kind of building fire protection wall unit provided by the invention
With the internal structure top view of U-shaped heat pipe；
Fig. 3 is the thermoelectric generation film of any one firewall unit in a kind of building fire protection wall unit provided by the invention
Working principle diagram；
Fig. 4 is a kind of fireproof escape passage schematic diagram in civil construction.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawing with embodiment to this
Invention is described in further detail.
Referring to Fig. 1 to Fig. 4, the present invention provides a kind of building fire protection wall units, the steel column 13 including vertical distribution；
The left and right sides of steel column 13 is respectively arranged with two pieces of thermoelectric generation films 1；
The lateral wall of two pieces of thermoelectric generation films 1 is directly in contact with the copper sheet 11 of one piece of vertical distribution respectively；
Two pieces of copper sheets 11, be connected respectively with the left and right ends of multiple heat pipes (for example) (such as can between heat pipe and copper sheet
Think embedded connection, be embedded in the groove reserved on copper sheet 11).
In the present invention, heat pipe, the high temperature heat for one end to be subject to are transmitted to one end of low temperature, realize heat
Transfer.
In the present invention, in specific implementation, the top of steel column 13 is welded with the girder steel 8 of cross direction profiles；
The lower end of steel column 13 is welded with two crossbeams 8 being spaced apart up and down；
In the gap between two crossbeams 8 being spaced apart up and down, it is filled with horizontal fire-proof plate 14；
The left and right ends of horizontal fire-proof plate 14 are respectively fixedly connected with the lower end of a vertical fire-proof plate 12；
The upper end of vertical fire-proof plate 12 is fixedly connected with the left and right ends for the crossbeam 8 for being located at 13 top of steel column.
In specific implementation, positioned at the top surface of the girder steel 8 at 13 top of steel column, it is provided with the floor 9 that user's building has.
It should be noted that for the present invention, girder steel 8 and steel column 13 are played a supporting role.
Vertical fire-proof plate 12 and horizontal fire-proof plate 14, are specifically as follows NALC (autoclaved lightweight aerated concrete) fire-proof plate.
In specific implementation, the left and right ends of horizontal fire-proof plate 14 are fixedly connected vertical respectively by the first automatic screw 5
The lower end of fire-proof plate 12.
In specific implementation, angle steel 7 is provided at any one girder steel 8 and the vertical angle of cut of vertical fire-proof plate 12；
It is welded with 8 phase of girder steel one end of each angle steel 7；
The other end of each angle steel 7 is fixedly connected by the second automatic screw 6 with vertical fire-proof plate 12.Therefore, can
Guarantee the stability of total of the present invention.
In specific implementation, the length of the second automatic screw 6, the shorter than length of the first automatic screw 5.
In specific implementation, between vertical fire-proof plate 12 and copper sheet 11, there is reserved gap, specially in two copper sheets 11
Outside, the air layer of each reserved 150mm.
In specific implementation, on the lateral wall of vertical fire-proof plate 12, also fitting is provided with composite exterior wall 10.Composite exterior wall 10,
It specifically can be NALC material and the composite wall that styrofoam is combined.
In specific implementation, structure shown in Figure 1, building fire protection wall unit provided by the invention removes the building of top
Outside plate, other five faces (i.e. front and rear sides and the left and right sides and bottom surface) are anti-by NALC (autoclaved lightweight aerated concrete)
Fiery plate package.
In the present invention, in specific implementation, it should be noted that heat pipe can be the heat pipe of U-shaped, be open backwards, and
The both ends (specially evaporator section and condensation segment) of heat pipe are connected with two pieces of copper sheets 11 (such as embedded connection) respectively, specifically may be used
It is closely to connect between heat pipe and copper sheet 11, so that heat pipe is uniform and stable to be embedded in the groove reserved on copper sheet 11
Ground is fixed on the inside of firewall.
In the present invention, in specific implementation, two pieces of copper sheets 11, respectively with the two of two heat pipe combination units being distributed up and down
End is connected；
Each heat pipe combination unit pipes include the room temperature heat pipe 2, moderate temperature heat pipe 3 and high-temperature heat pipe being sequentially distributed from top to bottom
4。
It should be noted that heat pipe: being a kind of extremely efficient heat transfer element to be worked with phase transition of vacuum principle, be existing
Heat transfer element.Typical heat pipe consists of a tube shell, a liquid suction core and an end cover, and is filled with suitable working solution for being pumped into after negative pressure in pipe
Body, make be close to inside pipe wall liquid-sucking core capillary-porous material in it is hydraulically full after sealed.One end of typical heat pipe is to steam
It sends out section (bringing-up section), the other end is condensation segment (cooling section), is needed to arrange adiabatic section two sections of centres according to application.Work as heat pipe
One end it is heated when Mao Renxin in liquid evaporation vaporization, steam, which is flow under a slight pressure difference, releases heat to the other end and condenses into
Evaporator section is flowed back in liquid, effect of the liquid again along porous material by capillary force.
Currently, being divided into for existing heat pipe according to operating temperature in heating pipe: Cryo Heat Tube (- 270~0 DEG C), often
Warm pipe (0~200 DEG C), moderate temperature heat pipe (200~600 DEG C), high-temperature heat pipe (600 DEG C or more).Heat pipe have good heat conductivity,
The superperformances such as structure is simple, reliable operation, temperature are uniform.
In specific implementation, the evaporator section and condensation segment at heat pipe both ends are embedded on two copper sheets 1, heat pipe here respectively
It is the phase transition process (utilizing the evaporation latent heat and the latent heat of condensation of liquid) condensed after the evaporation of hot end in cold end using medium, makes
Heat quickly conducts.Liquid in Mao Renxin (working media) carburation by evaporation when one end of the heat pipe is heated, steam is small
Other end releasing heat is flowed under pressure difference and condenses into liquid, and evaporator section is flowed back in effect of the liquid again along porous material by capillary force.
So circulation not oneself, heat reaches another-end by one end of heat pipe.Form the shape of side high temperature in U-shaped heat pipe and other side low temperature
State.
It should be noted that referring to figure 1 and figure 2, since copper sheet 11 has good heating conduction, can be very good by
The heat of heat pipe one end can be quickly transferred to another copper by the heat transfer at heat pipe both ends to copper sheet 11, a copper sheet 11
Plate, and then by the heat transfer of copper sheet to the two sides of thermoelectric generation film 1.Wherein one end temperature of heat pipe is higher, and other end temperature
It spends lower, to form the temperature difference of 1 two sides of thermoelectric generation film, and then generates potential.The wherein temperature of kindling side (i.e. fire side)
Poor power generation sheet 1 can power for main emergency lighting, and in the thermoelectric generation film far from kindling side (i.e. fire side) as spare
Power supply, it is ensured that when side emergency lighting and kindling signal transmitting are broken down, have backup power source, equipment can be continued as
Operation provides necessary electric energy.
In the present invention, in specific implementation, room temperature heat pipe 2 is the heat pipe that operating temperature is 0~200 DEG C, and moderate temperature heat pipe 3 is
The heat pipe that operating temperature is 200~600 DEG C, high-temperature heat pipe 4 is heat pipe of the operating temperature at 600 DEG C or more.
In specific implementation, for room temperature heat pipe 2 using water as working media, moderate temperature heat pipe 3 uses Dowtherm for working media,
Using Liquid Sodium as working media in high-temperature heat pipe 4.
In specific implementation, the heat pipes such as room temperature heat pipe 2, moderate temperature heat pipe 3 and high-temperature heat pipe 4 of use all can be open sail rubber
The heat pipe tubing of Hardwear Pty Ltd.'s production customization, wherein room temperature heat pipe 2 is the heat pipe that operating temperature is 0~200 DEG C, uses water
As working media, tubing can select the U-shaped copper tube of customization.Moderate temperature heat pipe 3 is the heat that operating temperature is 200~600 DEG C
Pipe, moderate temperature heat pipe 3 use Dowtherm for working media, and shell can select the U-shaped copper tube of customization.High-temperature heat pipe 4 is work
Heat pipe of the temperature at 600 DEG C or more, high-temperature heat pipe 4 is interior to use Liquid Sodium as working media, and shell can select stainless steel U-shaped
Pipe.The size of room temperature heat pipe 2, moderate temperature heat pipe 3 and high-temperature heat pipe 4 all can be 15mm × 3.5mm (nominal diameter × wall thickness), U
Type pipe overall length is 100mm, and both ends length is 40mm, and intermediate segment length is 20mm.
In the present invention, in specific implementation, referring to shown in Fig. 1, Fig. 3, thermoelectric generation film 1 may include and be cascaded
Multipair semiconductor combinations (being not limited to two pairs shown in Fig. 3)；
Each pair of semiconductor combinations include a P-type semiconductor 104 and a N-type semiconductor 105, P-type semiconductor 104 and N
Type semiconductor 105 is connected by connecting copper sheet 103；
The whole both ends for the multipair semiconductor combinations being cascaded are connected with a conducting wire 101 respectively, are respectively used to
As output cathode and cathode.
In specific implementation, the pottery of (such as being pasted with) vertical distribution is respectively set in the left and right sides of each pair of semiconductor combinations
Porcelain plate 102.
It should be noted that the two sides of thermoelectric generation film 1, are respectively provided with high temperature heat source and low-temperature heat source, sent out using the temperature difference
Electricity.The working principle of the thermoelectric generation film is as shown in figure 3, thermo-electric generation is a kind of solid-state being made based on paltie effect
Original part is fabricated using unique thin film technique.It is the same with semiconductor cooler, the production technology of thermo-electric generation chip
Combine the wafer technologies of microelectronic films and similar MEMS.Due to different metal have different electron densities, due to this two
Kind metal has different electron densities, and when two kinds of metals contact with each other, the position of contact point just has the flowing of electronics, electricity
Son can flow to low density one end by the high one end of density.The diffusion velocity of electronics is directly proportional to temperature, as long as so keeping two
The temperature difference of kind metal, is just able to maintain the flowing of electronics, just will form potential difference at metal both ends.Herein by two sections of metal conducts
One unit, it is series-parallel by multiple units, to increase output voltage and electric current.By be inlaid with room temperature heat pipe 2, medium temperature
Heat pipe 3, high-temperature heat pipe 4 two copper sheets direct contact so that two copper sheets have the temperature difference to generate, it can be achieved that self lasting is supplied
Electricity is not required to safeguard, long service life.Thermoelectric generation film and thermoelectric generation are conventionally known technology, are not unfolded herein
Specific statement.
It should be noted that for the present invention, referring to the cooling and energy conserving building fire protection wall list shown in Fig. 1 and Fig. 4, in Fig. 1
Member, when fire occurs for interior of building, (the i.e. fire side) heat pipe for the side that catches fire can absorb the heat generated due to fire source, this
One end is known as evaporator section (bringing-up section), and the other end is condensation segment (cooling section), when one end of the heat pipe is heated the liquid in Mao Renxin
Evacuator body vaporization, steam flow under a slight pressure difference to other end releasing heat and condense into liquid, and liquid is leaned on along porous material again
Evaporator section is flowed back in the effect of capillary force.So circulation not oneself, heat reaches another-end by one end of heat pipe.To reduce kindling one
The temperature of side wall surface is conducive to the escape of trapped person to reduce the temperature of air near wall.
In specific implementation, cooling and energy conserving building fire protection wall unit of the invention be can be applied in civil construction, due to temperature
Poor power generation plate is connect, it can be achieved that in the case where fire condition power-off with emergency light, and realization self-powered is emergency light
It uses, guarantees illumination, improve visibility, create good escape environment for disaster affected people escape；While the thermoelectric generation film
Output end is connected with existing fire extinguishing spray head by conducting wire, exports electric signal for fire extinguishing spray head, so that occurring in fire
Shi Qidong fire extinguishing spray head, timely and effective fire extinguishing.
It should be noted that thermoelectric generation film may be coupled to interior illuminator, when no fire occurs, due to room temperature
The effect of heat pipe, so that thermo-electric generation plate two sides can use still with the presence of the temperature difference for normal lighting etc..
In the present invention, in specific implementation, thermoelectric generation film 1 can specifically use Shanghai Ju Bang Electronic Science and Technology Co., Ltd.
The API30-TEG3 compound semiconductor of production, overall dimensions be 30mm × 30mm × 3.5mm (length × width x thickness), it can be achieved that
Thermo-electric generation, and it is pollution-free, noiseless, it can be realized lasting power generation, and the operation is stable, it is long in short-term interior without artificial dimension in
Shield.
In the present invention, in specific implementation, two pieces of thermoelectric generation films 1 are drawn power supply respectively, can specifically be connected by conducting wire
It is connected to the lighting apparatus (such as headlamp) of firewall two sides.
In the present invention, in specific implementation, for a building, building fire protection wall is the firewall list above-mentioned by several piece
Member composition (such as brick is the same, and stacked on top forms), firewall unit can be increased or decreased according to actual demand is appropriate,
To adapt to the demand currently built.
In the present invention, in specific implementation, under even in everyday situations, the thermoelectric generation film can according to the temperature difference of indoor and outdoor and
It produces electricl energy, provides electric energy for electrical equipments such as the illuminations of Indoor environment.
It should be noted that in normal circumstances, for the present invention, the room temperature heat pipe 2 inside firewall unit is normally transported
Make, the temperature difference generated by indoor and outdoor is passed through into thermoelectric generation film 1, is produced electricl energy, for normal lighting.
And in the case of fire, the side that fire occurs can be caused, temperature increases, when temperature is increased to certain degree
When, the moderate temperature heat pipe 3 in firewall is started to work, further, the high-temperature heat pipe when temperature is more than 600 DEG C inside firewall
4 start to work, and the high temperature for the side that catches fire is exported to another survey of firewall, so that realizing reduces the temperature that wallboard is surveyed in kindling, by
In the electric energy that the temperature difference of generation generates, mainly it is supplied to the equipment such as Emergency Light and alarm in building and uses.It simultaneously can be with
Electric signal transmission is given to indoor autoamtic fire extinguishing jet head as its auxiliary circuit and opens existing fire water sprinkling equipment 15.
Based on above technical scheme it is found that for the present invention, by heat pipe, realize transfer fire side heat (i.e. from
The heat of the fire side of high temperature, transmitting are transferred to the non-fire side of low temperature), to reduce the temperature of fire side firewall surrounding air
The radiant heat of fire generation is effectively reduced in degree.Simultaneously as the temperature difference of two wall surface of firewall, enable thermoelectric generation film
Electric signal is issued for fire prevention spray head, while the electric energy of thermoelectric generation film is used as the Emergency Light under fire condition and is used；And
Under even in everyday situations, due to the electric energy that thermoelectric generation film generates, then for normal lighting use.Cooling and energy conserving provided by the invention
Firewall, in addition to being used for normal lighting, can also fire occur when, provide a kind of high-visibility for trapped person,
Compared with the escape environment of low temperature.
In conclusion compared with prior art, fire can occur for a kind of building fire protection wall unit provided by the invention
When calamity, in time by the other end of the heat derives of fire side to firewall, the temperature of fire side wall surface is reduced, to be effectively reduced
The radiant heat that fire generates reduces the harm of fire bring, is of great practical significance.
In addition, in the state that circuit is closed, passing through thermo-electric generation for building fire protection wall unit provided by the invention
Piece can be produced electricl energy using the temperature difference inside and outside firewall, provide electric energy for emergency lighting system, facilitate the disaster-stricken people in disaster area
The escape of member creates preferably escape condition for disaster affected people.
Meanwhile building fire protection wall unit provided by the invention, except itself have fire resistance, also have heat preservation, it is heat-insulated,
Sound insulation property has the characteristics that traditional firewall.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of building fire protection wall unit, which is characterized in that the steel column (13) including vertical distribution；
The left and right sides of steel column (13) is respectively arranged with two pieces of thermoelectric generation films (1)；
The lateral wall of two pieces of thermoelectric generation films (1), difference are directly in contact with the copper sheet of one piece of vertical distribution (11)；
Two pieces of copper sheets (11), are connected with the left and right ends of multiple heat pipes respectively；
Heat pipe, the high temperature heat for one end to be subject to are transmitted to one end of low temperature, realize the transfer of heat.
2. building fire protection wall unit as described in claim 1, which is characterized in that steel column is welded with cross direction profiles at the top of (13)
Girder steel (8)；
The lower end of steel column (13) is welded with two crossbeams (8) being spaced apart up and down；
In the gap between two crossbeams (8) being spaced apart up and down, it is filled with horizontal fire-proof plate (14)；
The left and right ends of horizontal fire-proof plate (14) are respectively fixedly connected with the lower end of a vertical fire-proof plate (12)；
The upper end of vertical fire-proof plate (12), is fixedly connected with the left and right ends for the crossbeam (8) being located at the top of steel column (13).
3. building fire protection wall unit as claimed in claim 2, which is characterized in that the left and right ends of horizontal fire-proof plate (14), point
Not Tong Guo the first automatic screw (5), be fixedly connected with the lower end of vertical fire-proof plate (12).
4. building fire protection wall unit as claimed in claim 2, which is characterized in that any one girder steel (8) and vertical fire-proof plate
(12) angle steel (7) are provided at the vertical angle of cut；
It is mutually welded with girder steel (8) one end of each angle steel (7)；
The other end of each angle steel (7) is fixedly connected by the second automatic screw (6) with vertical fire-proof plate (12).
5. building fire protection wall unit as claimed in claim 2, which is characterized in that vertical fire-proof plate (12) and copper sheet (11) it
Between, there is reserved gap.
6. building fire protection wall unit as claimed in claim 2, which is characterized in that on the lateral wall of vertical fire-proof plate (12), also
Fitting is provided with composite exterior wall (10).
7. such as building fire protection wall unit described in any one of claims 1 to 6, which is characterized in that heat pipe is the heat pipe of U-shaped.
8. the building fire protection wall unit as described in any one of claims 1 to 7, which is characterized in that two pieces of copper sheets (11), respectively
It is connected with the both ends for two heat pipe combination units being distributed up and down；
Each heat pipe combination unit pipes include the room temperature heat pipe (2), moderate temperature heat pipe (3) and high-temperature heat pipe being sequentially distributed from top to bottom
(4)。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364652A (en) * | 2020-05-02 | 2020-07-03 | 胡德凯 | Firewall-oriented fixing base |
| CN114293677A (en) * | 2021-12-07 | 2022-04-08 | 南通科达建材科技股份有限公司 | Assembled building external wall insulation device |
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