CN220689219U - PTC electric heating device of fresh air system - Google Patents
PTC electric heating device of fresh air system Download PDFInfo
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- CN220689219U CN220689219U CN202322297853.3U CN202322297853U CN220689219U CN 220689219 U CN220689219 U CN 220689219U CN 202322297853 U CN202322297853 U CN 202322297853U CN 220689219 U CN220689219 U CN 220689219U
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- 238000005485 electric heating Methods 0.000 title claims abstract description 81
- 238000010438 heat treatment Methods 0.000 claims abstract description 93
- 239000000523 sample Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 16
- 238000009529 body temperature measurement Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 239000011491 glass wool Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 4
- 238000003303 reheating Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a PTC electric heating device of a fresh air system, which belongs to the field of fresh air heating and comprises two air pipes which are arranged at the bottom of a floor slab through angle steel brackets, centrifugal glass wool is arranged in the two air pipes, heating components are detachably arranged between the two air pipes, each heating component comprises a heating frame with an open bottom, and two mounting components are arranged on two sides of each heating frame. The utility model can detect the heat in the heating frame through the arrangement of the overtemperature alarm temperature measuring probe, has the functions of wind shortage and power failure, filter blockage and power failure and fan failure and power failure, adopts the incombustible gasket to perform physical heat insulation between the electric heating frame and the air pipe, effectively avoids the heat-generating body to conduct high-temperature heat to the metal frame body and the metal air pipe, and can preheat fresh air under the condition of completely avoiding fire risks by multiple guarantee functions so as to protect the water heating coil pipe at the back and prevent the coil pipe from freezing and cracking.
Description
Technical Field
The utility model relates to the technical field of fresh air heating, in particular to a PTC electric heating device of a fresh air system.
Background
The utility model discloses a fresh air antifreezing device and fresh air handling unit equipment, and belongs to the technical field of fresh air handling units. This freeze-proof device includes ventilation assembly and freeze-proof subassembly, ventilation assembly includes shell, baffle, electric heating pipe and play tuber pipe, the shell includes skin, heat preservation and inlayer, freeze-proof subassembly includes dampproofing box with a net, positioning knob, air-supply line, solenoid valve and dust cover, dampproofing box with a net slides and inserts to locate in the shell, through setting up shell, baffle, electric heating pipe and play tuber pipe, can heat the coil pipe storehouse when the temperature is lower, avoid the coil pipe to be eastern the ring, through establishing the shell into skin, heat preservation and inlayer, can effectually keep warm, avoid inside temperature too low to a certain extent, through setting up dampproofing box with a net, positioning knob, air-supply line, solenoid valve and dust cover, can effectively avoid moisture inside to adhere to on the components and parts, reduce the damage to components and parts.
At present, fresh air in winter in severe cold areas needs to be subjected to electric preheating water reheating measures, otherwise, a water heating coil is frozen out, the temperature of a traditional electric heater is not easy to control, the situation that the traditional electric heater is turned on and reds easily occurs, for example, when a fan in an air pipe breaks down or a filter is blocked, when the efficiency of air circulation is reduced, heat in a heating area cannot flow, and then the phenomenon that the heating position reds is caused, fire accidents can be caused when serious, and even if an automatic control means is assisted, the risk of extremely high fire exists.
Disclosure of Invention
The utility model aims to provide a PTC electric heating device of a fresh air system, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a PTC electric heater unit of new trend system, includes two tuber pipes through angle steel support mounting in floor bottom, two install centrifugal glass cotton in the tuber pipe, two detachably installs heating element between the tuber pipe, heating element includes that the bottom is open heating frame, the both sides of heating frame all are provided with two installation components, the both sides of heating frame all are connected with two tuber pipes through a set of installation component, be provided with auxiliary assembly between the bottom of the top of heating frame and floor, install U type heated board through the bolt is detachable on the heating frame, the bottom fixed mounting of U type heated board inner wall has two incombustible gaskets that extend to the inside of heating frame, the bottom fixedly connected with of U type heated board inner wall is by incombustible material and is made, the heatproof is located between two incombustible gaskets, first electric heating piece, second electric heating piece and third electric heating piece 36 are installed in proper order from left to right at the top of incombustible gasket, the inside of heating frame is provided with the temperature measurement probe.
As a further preferable mode of the technical scheme, rectangular frames are fixedly installed on two sides of the heating frame and one end of each of the two air pipes, and mounting holes are formed in two sides of the inside of each of the four rectangular frames.
As a further preferable mode of the technical scheme, the installation assembly comprises a sliding plate sliding on the outer side face of the heating frame, one side of the sliding plate is fixedly connected with an anastomotic placode block used for being inserted into the installation hole, and one end of the anastomotic placode block is rotationally connected with two limiting blocks.
As a further preferable mode of the technical scheme, connecting holes are formed in the two limiting blocks, and fastening screws are arranged on the two limiting blocks through the connecting holes.
As the further preferred of this technical scheme, auxiliary assembly includes two L type framves that are fixed in the floor bottom through fastening bolt and is fixed in through fastening bolt the T type piece at heating frame top, two chucking mouth and sliding port have all been seted up to the inside of L type frame, the equal fixedly connected with buffer block in bottom of two sliding port inner walls, the top of T type piece is provided with the retaining member.
As the further preferred of this technical scheme, the retaining member is including being fixed in the movable frame at T type piece top, the inside sliding connection of movable frame has two T type retaining blocks, two the locking end of T type retaining block all extends to the outside of movable frame, two fixedly connected with extrusion spring between the T type retaining block, two fixedly connected with stay cord between one side of T type retaining block, the stay cord extends to the outside of movable frame.
The utility model provides a PTC electric heating device of a fresh air system, which has the following beneficial effects:
(1) According to the utility model, through the arrangement of the overtemperature alarm temperature measurement probe, the temperature measurement probe for detecting the heat in the heating frame and the physical heat insulation separation between the metal box body where the electric heating is positioned and the connecting air pipe are realized by adopting the incombustible gasket, the problems that the air in the air pipe stops or is blocked, so that the heat in the heating frame cannot circulate and the fire risk is caused are effectively avoided, and the coil pipe bin has the functions of wind deficiency and power outage, filter blocking and power outage and fan fault and power outage, thereby reducing the fire risk and ensuring that the coil pipe bin is in a reasonable temperature range when the temperature is lower.
(2) According to the utility model, the two T-shaped locking blocks are inserted into the clamping openings at the corresponding positions, so that the stability of the heating frame after installation is ensured, and the T-shaped locking blocks are inserted into the sliding openings, so that the height of the heating frame can be adjusted by the gravity of the heating frame, and the heating frame can move downwards, thereby being convenient for a worker to overhaul and maintain the heating device in the heating frame.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a combination air duct and heating frame of the present utility model;
FIG. 3 is a sectional view of a combination air duct and heater frame of the present utility model;
FIG. 4 is a schematic view of the mounting of the air duct and the heating frame of the present utility model;
FIG. 5 is a schematic view of the auxiliary assembly of the present utility model;
FIG. 6 is a schematic diagram of the structure of a T-block of the present utility model;
FIG. 7 is a schematic diagram of a PTC electric heating device of the fresh air system of the present utility model;
fig. 8 is a schematic diagram of the automatic control measure of the PTC electric heating device of the fresh air system of the present utility model.
In the figure: 1. a floor slab; 2. an air duct; 3. a heating frame; 31. a U-shaped heat insulation board; 32. a non-combustible spacer; 33. a heat-resistant block; 34. a first electrical heating element; 35. a second electric heating element; 36. a third electric heating element 36; 37. overtemperature alarm temperature measurement probe; 4. a mounting assembly; 41. a sliding plate; 42. an anastomotic mass; 43. a limiting block; 44. fastening a screw; 5. a rectangular frame; 6. an auxiliary component; 61. an L-shaped frame; 62. a T-shaped block; 63. a buffer block; 64. a movable frame; 65. a T-shaped locking block; 66. extruding a spring; 67. and (5) pulling the rope.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
First embodiment
The utility model provides the technical scheme that: as shown in fig. 1-8, in this embodiment, a PTC electric heating apparatus of a fresh air system includes two air pipes 2 installed at the bottom of a floor slab 1 through angle steel brackets, centrifugal glass wool is installed in the two air pipes 2, heating components are detachably installed between the two air pipes 2, the heating components include a heating frame 3 with an open bottom, two mounting components 4 are provided at both sides of the heating frame 3, both sides of the heating frame 3 are connected with the two air pipes 2 through a group of mounting components 4, an auxiliary component 6 is provided between the top of the heating frame 3 and the bottom of the floor slab 1, a U-shaped heat insulation plate 31 is detachably installed on the heating frame 3 through bolts, two incombustible gaskets 32 extending to the inside of the heating frame 3 are fixedly installed at the bottom of the inner wall of the U-shaped heat insulation plate 31, the heat blocks 33 are located between the two incombustible gaskets 32, a first electric heating element 34, a second electric heating element 35 and a third electric heating element 3636 are sequentially installed at the top of the heating block 33 from left to right, and a temperature measurement alarm 37 is provided at the inside of the heating frame 3;
the overtemperature alarm temperature measurement probe 37 adopts a measurement probe for detecting the heat in the heating frame 3 in the prior art, so that the problem that the heat in the heating frame 3 cannot circulate and the fire risk is caused because the air in the air pipe 2 is stopped or blocked is avoided, and the overtemperature alarm temperature measurement probe has the functions of wind deficiency and outage, filter blockage and outage and fan fault outage, thereby reducing the fire risk;
the electric heating elements in the first electric heating element 34, the second electric heating element 35 and the third electric heating element 3636 are all heating elements which generate heating functions by electrifying in the prior art and are used for heating the heat inside the heating frame 3;
the highest temperature (Curie temperature) of the PTC material is 250 ℃, and when the temperature exceeds the Curie point, the resistivity suddenly increases, so that the current of the PTC material is reduced to a stable value, and the purposes of automatically controlling the temperature and keeping the temperature constant are achieved. Meanwhile, the system has the functions of wind deficiency and power failure, filter blockage and power failure and fan fault and power failure; the electric heating device has the advantages that the metal box body and the connecting air pipe are subjected to physical heat insulation separation by adopting the incombustible gasket, the heating element is effectively prevented from conducting high-temperature heat to the metal box body and the metal air pipe, fresh air can be preheated under the condition of completely avoiding fire risks by multiple guarantee functions, the water heating coil at the back is protected, the coil is prevented from being frozen and cracked, and when alternating current or direct current voltage is applied to the PTC electric heating device for heating, the resistivity is very low at the Curie point temperature; when the temperature exceeds 250 ℃ of the Curie point once, the resistivity suddenly increases, so that the current of the resistor is reduced to a stable value, and the purposes of automatically controlling the temperature and keeping constant temperature are achieved;
greatly reduces the risk of fire, has controllable temperature, low temperature of preheated fresh air, low power consumption, controllable energy conservation and safety, and has great advantages for hospitals, canteens, clean plants and the like which need fresh air fields all the year round
The system comprises a coarse-effect filtering section, an electric heat-preserving closed regulating valve, an electric heating section, a water reheating section and a fan section, wherein the components are sequentially connected by adopting a metal air pipe 2, and rock wool and other non-combustible A-level heat-preserving materials are coated outside the metal air pipe 2;
the combination of the PTC electric heating device and the metal box body is provided with an incombustible gasket 32 made of incombustible asbestos material, the metal box body and the air pipe 2 where the electric heating is positioned are physically and thermally isolated by the incombustible gasket 32, the surface of the PTC electric heating material is provided with an overtemperature probe, once the temperature reaches the Curie temperature, the overtemperature probe immediately sends out an electric signal to the alarm device to trigger the alarm facility to send out an alarm, and meanwhile, the automatic control device synchronously realizes power failure;
the device has been successfully applied to fresh air preheating of a canteen of a certain organization and fresh air preheating of an operating room of a certain hospital, and before the device is applied, fresh air heating of the canteen and the operating room adopts a high-temperature water preheating coil pipe and a low-temperature water reheating coil pipe, but in long winter, the valve is closed by the high-temperature water preheating coil pipe due to valve blockage or manual misoperation after maintenance, water flow is unsmooth, the preheating and reheating coil pipes are frozen, and particularly, a large amount of water floods into an underground power distribution room at night, so that a high-low voltage power distribution cabinet and a transformer are damaged, and a large amount of economic loss is caused; after the PTC electric preheating device is used for three years, the phenomenon of freezing cracking of the coil is avoided, the power consumption is low, the annual fresh air heating power consumption of a certain canteen is about fifty thousand KWh, the cost is about 2.5 ten thousand, and the electric heating power is completely within the acceptance range of the first party.
As shown in fig. 2 and 4, rectangular frames 5 are fixedly installed on both sides of the heating frame 3 and one ends of the two air pipes 2, mounting holes are formed on both sides of the inside of the four rectangular frames 5, the mounting assembly 4 comprises a sliding plate 41 sliding on the outer side surface of the heating frame 3, an anastomotic mass 42 for being inserted into the mounting holes is fixedly connected to one side of the sliding plate 41, and two limiting blocks 43 are rotatably connected to one end of the anastomotic mass 42;
through the motion of one side sliding plate 41, the anastomotic mass 42 on one side of the sliding plate 41 can be driven to be inserted into the mounting hole at the corresponding position, and the locking installation of two rectangular frames 5 can be formed by matching with the rotation expansion of two limiting blocks 43, so that the detachable installation of the air pipe 2 and the heating frame 3 is formed.
As shown in fig. 4, the inside of the two limiting blocks 43 is provided with connecting holes, and the two limiting blocks 43 are provided with fastening screws 44 through the connecting holes;
through the rotatory expansion of two stopper 43, can make the rectangle frame 5 on tuber pipe 2 and the heating frame 3 lock, form the locking installation of tuber pipe 2 and heating frame 3, moreover through the setting of fastening screw 44 for further improve the stability after its stopper 43 expansion, improve the effect of its installation, this kind of mounting means has effectually avoided because the not hard up of fastening screw 44 among the prior art, leads to the increase in mounted position clearance, leads to the problem of gas leakage.
The starting sequence of the electric heating section:
manually starting the blower, opening the electric heat-preserving closed valve in a chain manner, after lasting for 5min, opening the first electric heating element 34, after lasting for 2min, detecting whether the air supply temperature meets the requirement or not by the temperature sensing bag, when the requirement is met, closing the first electric heating element 34, when the requirement is not met, opening the second electric heating element 35, after lasting for 2min, detecting whether the air supply temperature meets the requirement or not by the temperature sensing bag, when the requirement is met, opening only the second electric heating element 35, when the requirement is not met, opening the first electric heating element 34, opening the second electric heating element 35, after lasting for 2min, detecting whether the air supply temperature meets the requirement or not by the temperature sensing bag, when the requirement is met, keeping closing only the third electric heating element 36, when the requirement is not met, keeping the first electric heating element 34 and the second electric heating element 35, when the requirement is met, keeping the first electric heating element 34 and the second electric heating element 35, and when the requirement is met, keeping the second electric heating element 34 and the second electric heating element 35, and when the requirement is met, keeping the first electric heating element and the second heating element 35, keeping the first electric heating element and the second heating element being closed when the requirement and the second heating element and the electric heating element being kept on;
stopping sequence of the electric heating section:
when the temperature of the air outlet temperature measuring probe temperature sensing bag is higher than the set temperature, the first electric heating element 34 is closed, the second electric heating element 35 and the third electric heating element 36 are opened, after 2min, the temperature sensing bag is used for measuring whether the air supply temperature is higher than the set temperature, when the air supply temperature is not reached, the rest electric heater is not closed, when the air supply temperature is reached, the second electric heating element 35 is closed, the first electric heating element 34 and the third electric heating element 36 are opened, after 2min, the temperature sensing bag is used for measuring whether the air supply temperature is higher than the set temperature, when the air supply temperature is not reached, the rest electric heater is not closed, when the air supply temperature is reached, the first electric heating element 34 and the second electric heating element 35 are closed, the third electric heating element 36 is opened, after 2min, the temperature sensing bag is used for measuring whether the air supply temperature is higher than the set temperature, when the air supply temperature is not reached, the rest electric heater is not closed, when the temperature is reached, the third electric heating element 36 is turned off, the first electric heating element 34 and the second electric heating element 35 are turned on, after 2min, the temperature sensing bag measures whether the air supply temperature is higher than the set temperature, when the temperature is not reached, the rest electric heaters are not turned off, when the temperature is reached, the first electric heating element 34 and the third electric heating element 36 are turned off, after 2min, the temperature sensing bag measures whether the air supply temperature is higher than the set temperature, when the temperature is not reached, the rest electric heaters are not turned off, when the temperature is reached, the second electric heating element 35 and the third electric heating element 36 are turned off, the first electric heating element 34 is turned on, after 2min, the temperature sensing bag measures whether the air supply temperature is higher than the set temperature, when the temperature is not reached, the rest electric heaters are not turned off any more, and when the temperature is reached, all electric heaters are turned off.
The utility model provides a PTC electric heating device of a fresh air system, which has the following specific working principle:
the outside air is discharged to the inside of the heating frame 3 through the air pipe 2 on the left, the air is heated through the electric heating part in the heating frame 3, the heated air enters the air pipe 2 on the right to form air supply work, the air in the heating frame 3 can be heated at different temperatures through the arrangement of the first electric heating part 34, the second electric heating part 35 and the third electric heating part 3636 so as to improve the electric heating effect, the incombustible gasket 32 made of incombustible asbestos material is arranged at the joint of the PTC electric heating device and the metal box, the incombustible gasket 32 is adopted between the metal box and the air pipe 2 for physical heat insulation, and the temperature measuring probe 37 is used for detecting the heat in the heating frame 3 in the prior art to avoid the stop or blockage of the air in the air pipe 2 so as to solve the problem that the heat in the heating frame 3 cannot circulate and cause fire risks.
Second embodiment
Referring to fig. 5-6 in combination, another PTC electric heating device for a fresh air system is provided in a second embodiment of the present application based on the PTC electric heating device for a fresh air system provided in the first embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the PTC electric heating device for the fresh air system provided in the second embodiment of the present application is different in that the auxiliary assembly 6 includes two L-shaped frames 61 fixed to the bottom of the floor slab 1 by fastening bolts and T-shaped blocks 62 fixed to the top of the heating frame 3 by fastening bolts, clamping ports and sliding ports are formed in the two L-shaped frames 61, buffer blocks 63 are fixedly connected to the bottoms of the inner walls of the two sliding ports, and locking members are provided at the top of the T-shaped blocks 62;
through the setting of retaining member for lock T type piece 62 and two L type framves 61, and then make T type piece 62 and two L type framves 61 form a whole, improve its heating frame 3 installation and hang the stability of installation, through the setting of buffer block 63 in addition, be used for carrying out buffer treatment to the locking end of retaining member, reduce the striking of its heating frame 3 whereabouts process.
The locking piece comprises a movable frame 64 fixed at the top of the T-shaped block 62, two T-shaped locking blocks 65 are connected inside the movable frame 64 in a sliding manner, locking ends of the two T-shaped locking blocks 65 extend to the outside of the movable frame 64, an extrusion spring 66 is fixedly connected between the two T-shaped locking blocks 65, a pull rope 67 is fixedly connected between one sides of the two T-shaped locking blocks 65, and the pull rope 67 extends to the outside of the movable frame 64;
the two T-shaped locking blocks 65 can be extruded through the elastic force of the extrusion springs 66, so that the two T-shaped locking blocks 65 move away from each other, further the locking ends of the two T-shaped locking blocks 65 are outwards unfolded and inserted into the clamping openings or sliding openings at the corresponding positions, and the two T-shaped locking blocks 65 are inserted into the clamping openings at the corresponding positions, so that the stability of the heating frame 3 after being installed is ensured;
the T-shaped locking blocks 65 are inserted into the sliding port, so that the height of the heating frame 3 can be adjusted by the gravity of the heating frame 3 and downwards, thereby facilitating the overhaul and maintenance work of workers on heating devices in the heating frame 3, and the two T-shaped locking blocks 65 are conveniently controlled by the setting of the pull ropes 67, so that the locking or height adjusting work is facilitated;
the problem that in the prior art, due to the fact that the installation position of the air pipe 2 is higher, workers need to use a ladder to carry out high-altitude operation in the overhauling or disassembling process is solved, safety is not enough, and due to the fact that the air pipe is located in a high-altitude operation, the workers cannot concentrate on overhauling.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a PTC electric heater unit of new trend system, includes through angle steel support installation in two tuber pipes (2) of floor (1) bottom, two install thermal-insulated centrifugal glass cotton, its characterized in that in tuber pipe (2): the utility model provides a heating element is detachably installed to two between tuber pipe (2), heating element includes that the bottom is open heating frame (3), the both sides of heating frame (3) all are provided with two installation component (4), the both sides of heating frame (3) all are connected with two tuber pipes (2) through a set of installation component (4), be provided with auxiliary assembly (6) between the bottom of the top of heating frame (3) and floor (1), install U type heated board (31) through the bolt detachably on heating frame (3), the bottom fixed mounting of U type heated board (31) inner wall has two incombustible gaskets (32) that extend to heating frame (3) inside, the bottom fixedly connected with of U type heated board (31) inner wall is by incombustible material heat-resisting block (33), heat-resisting block (33) are located between two incombustible gaskets (32), first electrical heating element (34), second electrical heating element (35) and third electrical heating element (36) are installed in proper order from a left side to right side to the top of heat-resisting block (33), temperature measurement probe (36) are inside heating element (37).
2. The PTC electric heating device for a fresh air system according to claim 1, wherein: rectangular frames (5) are fixedly installed on two sides of the heating frame (3) and one end of each of the two air pipes (2), and mounting holes are formed in two sides of the interior of each of the four rectangular frames (5).
3. The PTC electric heating device for a fresh air system according to claim 2, wherein: the installation component (4) including slide in slide plate (41) of heating frame (3) lateral surface, one side fixedly connected with of slide plate (41) is used for inserting inside anastomotic placode (42) of mounting hole, the one end rotation of anastomotic placode (42) is connected with two stopper (43).
4. A PTC electrical heating device for a fresh air system according to claim 3, wherein: the inside of two stopper (43) has all been seted up the connecting hole, two stopper (43) all are provided with fastening screw (44) through the connecting hole.
5. The PTC electric heating device for a fresh air system according to claim 1, wherein: the auxiliary assembly (6) comprises two L-shaped frames (61) fixed at the bottom of the floor slab (1) through fastening bolts and T-shaped blocks (62) fixed at the top of the heating frame (3) through fastening bolts, clamping ports and sliding ports are formed in the L-shaped frames (61), buffer blocks (63) are fixedly connected to the bottoms of the inner walls of the two sliding ports, and locking pieces are arranged at the tops of the T-shaped blocks (62).
6. The PTC electric heating device for a fresh air system according to claim 5, wherein: the retaining member is including being fixed in movable frame (64) at T type piece (62) top, the inside sliding connection of movable frame (64) has two T type retaining blocks (65), two the locking end of T type retaining blocks (65) all extends to the outside of movable frame (64), two fixedly connected with extrusion spring (66) between T type retaining blocks (65), two fixedly connected with stay cord (67) between one side of T type retaining blocks (65), stay cord (67) extend to the outside of movable frame (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297853.3U CN220689219U (en) | 2023-08-24 | 2023-08-24 | PTC electric heating device of fresh air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297853.3U CN220689219U (en) | 2023-08-24 | 2023-08-24 | PTC electric heating device of fresh air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220689219U true CN220689219U (en) | 2024-03-29 |
Family
ID=90407723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322297853.3U Active CN220689219U (en) | 2023-08-24 | 2023-08-24 | PTC electric heating device of fresh air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220689219U (en) |
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2023
- 2023-08-24 CN CN202322297853.3U patent/CN220689219U/en active Active
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