Anti-scald heating equipment for heating circulating fan

Abstract

The invention relates to the technical field of fluid heaters, in particular to anti-scald heating equipment for heating a circulating fan, which comprises a seat body, a fan module, a shell part, a heating part, a positioning heat conduction part, a protective isolation module, a controllable through-flow part, a water pumping part and a control box, the fan module is mounted on the upper side of a seat block of the seat body, the shell part is mounted on the right side of the fan module, and the heating part is mounted on the shell part. And the shell part comprises a thermal insulation shell fixed on the upper side of the seat body, and the anti-scald heating equipment of the heating circulating fan can be independent of a thermocouple overheat detection protection measure through the arrangement of the positioning heat conduction part, the protection isolation module, the calandria, the pressure release valve, the whistle piece and other structures; the overheated heating equipment is subjected to multiple protection of isolation, warning and cooling, rapid cooling and heating element protection can be carried out when the equipment is overheated, personnel and the equipment are isolated, the risk that the personnel are scalded is reduced, and the worker is warned so that the worker can enter a manual processing link conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid heaters, and in particular to an anti-scalding heating device for a heating circulation fan. Background Art

[0002] The heating equipment of the heating circulation fan usually refers to the duct heater. The duct heater is a device specially used to heat the air. It transfers heat to the air flowing through the duct through electric heating elements or other heating methods to increase the air temperature. In the heating circulation fan system, the duct heater plays a key role. It can provide the required heat for the air transported by the fan, thereby meeting the heating requirements of a specific space or process.

[0003] In order to prevent heat from being conducted to the surface of the outer shell and causing burns to the staff during operation, the existing duct heaters usually fill the shell with an insulating interlayer to reduce heat transfer and play a role of thermal insulation. However, in actual use, if the staff starts the duct heater first, and if the circulating fan is not started synchronously due to operational errors or equipment failures, there will be no airflow in the duct heater. Since the several electric heating tubes in the duct heater are usually arranged very closely to improve the heating efficiency, the heat generated by each electric heating tube cannot be dissipated in time, which will cause the temperature between the heating tubes to rise rapidly and heat accumulation to occur. This will not only damage the electric heating tubes, but also affect their service life. Even if the duct heater is stopped in time under the overheating detection of the thermocouple, the accumulated heat will still exist. This heat accumulation may exceed the heat resistance limit of the insulating interlayer, resulting in a reduction in the thermal insulation effect, thereby causing the outer shell surface to heat up rapidly, increasing the risk of burns to the staff. Therefore, based on the above problems, a scalding-proof heating device for a heating circulating fan is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-scalding heating device for a heating circulation fan to solve the problem that when the heating device of the existing heating circulation fan is overheated, the thermal insulation performance of the shell may fail or be greatly reduced, thereby causing the shell surface to heat up rapidly and increasing the risk of burns to the staff.

[0005] To achieve the above object, the present invention provides the following technical solutions: A scalding-proof heating device for a heating circulation fan comprises a seat body, a fan module, a shell, a heating part, a positioning heat-conducting part, a protective isolation module, a controllable flow-through part, a pumping part and a control box. The fan module is installed on the upper side of the seat block of the seat body, and the shell is installed on the right side of the fan module. The shell comprises a thermal insulation shell fixed on the upper side of the seat body, and a mounting opening is provided on the upper side of the thermal insulation shell. A pair of through-holes 1 are provided on the front and rear sides of the thermal insulation shell, and a through-hole 2 is provided on the right side of the through-hole 1. A positioning heat-conducting part is installed on the inside of the shell, and the positioning heat-conducting part is installed on the inside of the shell. The heat part includes a heat-conducting frame shell fixedly connected to the inner wall of the insulation shell, and a plurality of positioning grid openings arranged at equal intervals are provided on the inner side of the heat-conducting frame shell. A liquid cavity with an upper opening is provided on the inner side of the heat-conducting frame shell, and a floating plate is slidably connected to the inner side of the liquid cavity. A pair of interfaces connected to the liquid cavity are provided on both the front and rear sides of the lower end face of the heat-conducting frame shell, and an interface 2 is provided on the right side of the lower end face of the heat-conducting frame shell, and the interface 2 is connected to the liquid cavity. Protective isolation modules are installed on the front and rear sides of the positioning heat-conducting part, and the upper side of the base is fixedly connected to a control box located in front of the fan module.

[0006] The top end of the lifting link is connected with the lifting link of the lifting link, and the bottom end of the lifting link is connected with the lifting link of the lifting link.

[0007] Preferably, a controllable flow portion is installed on the lower side of the positioning heat-conducting portion, and the controllable flow portion includes a through-tube fixed on the inner side of the second perforation, the rear upper end of the through-tube is connected with the second interface, the through-tube is fixedly connected to a rail shell on the front side of the shell, the inner side of the rail shell is slidably connected with a valve plate, a one-way valve aligned with the vertical pipe of the through-tube is installed in the right side opening of the valve plate, a water hole is provided on the inner side of the valve plate on the left side of the one-way valve, the right side of the through-tube is connected to a liquid filling valve pipe on the upper side of the one-way valve, the right side of the through-tube is connected to a drain pipe on the upper side of the liquid filling valve pipe, a pressure relief valve is installed on the vertical pipe of the drain pipe, and the upper end of the drain pipe is connected to a whistle.

[0008] Preferably, a heating part is installed at the shell part, and the heating part includes an insulation plate located in the loading port, and the insulation plate and the insulation shell are detachably connected by bolts, a plurality of heating tubes arranged at equal distances are fixedly connected to the lower side of the insulation plate, and the heating tubes are all located on the inner side of the insulation shell, a plurality of support tubes are fixedly connected to the upper side of the insulation plate, a junction box is fixedly connected to the upper side of the support tube, a thermocouple is installed on the inner side of the junction box, and the detection end of the thermocouple passes through the insulation plate and is inserted into the inner side of the insulation shell.

[0009] Preferably, the thermal insulation shell consists of an outer shell and an insulating interlayer inside the outer shell, the support tubes are arranged at equal intervals, the support tubes and the lower heating tubes are arranged one-to-one, the heating tubes are arranged on the inner side of the positioning grid, the fins of the heating tubes are in contact with the inner wall of the positioning grid, the positioning heat-conducting part is arranged in the middle area of the heating tube, the outer end face of the floating plate is in close contact with the inner wall of the liquid cavity, the protective isolation modules are arranged on the front and rear sides of the shell, the protective isolation modules are arranged on the front and rear sides of the heating part, the height dimension of the partition curtain after unfolding is 0.5 times the height dimension of the shell, the length dimension of the partition curtain is the same as the length dimension of the middle shell of the thermal insulation shell, and the folds of the partition curtain are pre-pressed with creases.

[0010] Preferably, the outer end surface of the valve plate fits with the inner wall of the rail housing, the one-way valve is set for one-way flow from bottom to top, the liquid filling valve pipe consists of a pipe body and a regulating valve, and the upper end of the drain pipe and the whistle are both set higher than the heating part.

[0011] Preferably, a pumping part is installed on the front side of the shell part, and the pumping part includes a storage shell fixedly connected to the front end surface of the thermal insulation shell, and the storage shell is communicated with the lower left end of the through pipe, and the left circular opening of the storage shell is slidably connected to a piston rod, and the right end of the piston rod is fixedly connected to a piston plate located on the inner side of the storage shell, and a spring three is sleeved on the outer side of the piston rod. The fan module includes a volute, a motor, a fan wheel, a driving mechanism one and a driving mechanism two, and the volute includes a wheel shell arranged on the upper side of the seat block, and an air inlet is provided on the front side of the wheel shell, and an exhaust pipe is fixedly connected to the right side of the wheel shell, and the exhaust pipe and the thermal insulation shell are detachably connected by bolts, and an expansion cavity is provided on the lower side of the exhaust pipe, and a track is provided on the upper side of the exhaust pipe, and a The expansion groove, the rear side of the wheel shell is fixedly connected to the motor, the end of the output shaft of the motor is fixedly connected to the fan wheel in the wheel shell, and the driving mechanism 1 includes a linkage rail plate slidably connected to the track, the lower end of the linkage rail plate is fixedly connected to the guide block inside the exhaust pipe, and a spring 1 is fixedly connected between the right end face of the linkage rail plate and the right inner wall of the expansion groove, the front side of the linkage rail plate is fixedly connected to the linkage bar, and the right end of the linkage bar is fixedly connected to the left end face of the valve plate, and the driving mechanism 2 includes a rotating shaft rotatably connected to the exhaust pipe hole, the outer side of the rotating shaft is fixedly connected to the impeller inside the expansion cavity, and the front end of the rotating shaft is fixed with a winding disk on the left side of the pumping part, and a pull rope is fixedly connected between the inner wall of the winding groove of the winding disk and the left end of the piston rod.

[0012] Preferably, the upper end face of the guide block is in contact with the upper inner wall of the exhaust pipe, the guide block is a right-angled trapezoidal block structure with a shorter left side and a longer right side, the bottom of the guide block is an arc-shaped surface, the guide block is arranged on the upper side of the impeller, the distance between the right end face of the linkage rail plate and the right inner wall of the track is the same as the distance between the center of the water hole and the center of the one-way valve, the spring three is arranged between the left inner wall of the storage shell and the left end face of the piston plate, the outer end face of the piston plate is in contact with the inner wall of the storage shell, and the piston rod consists of a right cross rod and a left pull block.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by setting the positioning heat conduction part, protective isolation module, drain pipe, pressure relief valve and whistle and other structures, when the equipment is not started according to the correct steps, the heating tubes of the heating part will accumulate heat and overheat. The cooling water in the positioning heat conduction part can absorb the heat generated by the heating tube and turn it into water vapor, taking away the heat while expanding the protective isolation module to isolate the contact between external personnel and the shell in the insulation shell, thereby reducing the risk of workers being burned by touching the outer surface of the insulation shell, and the excess water vapor will be discharged through the drain pipe, pressure relief valve and whistle, and the whistle will emit a whistle to warn the workers. , the anti-scalding heating equipment of the heating circulation fan can be used to provide multiple protections of isolation, warning and cooling for overheated heating equipment, independent of the thermocouple overheating detection protection measures. When the equipment is overheated, it can be cooled quickly to protect the heating elements, and isolate personnel from the equipment to reduce the risk of scalding. It also warns the staff so that they can enter the manual processing link. This design solves the problem that when the heating equipment of the existing heating circulation fan is overheated, the insulation performance of the shell may fail or be greatly reduced, thereby causing the shell surface to heat up rapidly and increasing the risk of scalding for the staff. 2. In the present invention, by setting up the drive mechanism 1, drive mechanism 2, pumping part, controllable flow part and other structures, when the equipment is started according to the correct steps, the airflow generated by the fan module will push the drive mechanism 1 and drive mechanism 2 to operate, and the action of the drive mechanism 1 makes the through pipe of the controllable flow part become a two-way passage state, and the action of the drive mechanism 2 allows the pumping part to extract the cooling water in the liquid cavity through the through pipe. In this way, when the heating tube is heated, the cooling water in the liquid cavity has been pumped into the storage shell. When each device is correctly operated and started, the multiple protection measures of isolation, warning and cooling will not be triggered, thereby ensuring the normal operation of the equipment and avoiding the false start of the protection measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure viewed from above; Figure 3 For the present invention Figure 1 Schematic diagram of the left view structure; Figure 4 For the present invention Figure 1 Schematic diagram of the cross-sectional structure; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A; Figure 6 This is a schematic structural diagram of the fan module of the present invention; Figure 7 For the present invention Figure 6A schematic diagram of a front cross-sectional structure; Figure 8 It is a schematic cross-sectional view of the volute of the present invention; Figure 9 Schematic diagram of the structure of the volute of the present invention; Figure 10 This is a schematic diagram of the split structure of the shell portion of the present invention; Figure 11 It is a structural schematic diagram of the heating part of the present invention; Figure 12 It is a structural schematic diagram of the heating part of the present invention; Figure 13 This is a schematic structural diagram of the positioning heat conduction portion of the present invention; Figure 14 For the present invention Figure 13 Schematic diagram of the dissected structure; Figure 15 For the present invention Figure 14 Schematic diagram of the structure at B; Figure 16 Schematic diagram of the dissected structure of the heat-conducting frame shell of the present invention; Figure 17 Schematic diagram of the cross-sectional structure of the protective isolation module of the present invention; Figure 18 It is a schematic cross-sectional view of the transmission deployment portion of the present invention; Figure 19 It is a structural schematic diagram of the connecting plate in the present invention; Figure 20 Schematic diagram of the cross-sectional structure of the controllable flow portion of the present invention; Figure 21 It is a schematic cross-sectional structural diagram of the pumping part of the present invention.

[0015] In the figure: 1. Base; 2. Fan module; 21. Volute; 211. Wheel shell; 212. Air inlet; 213. Exhaust pipe; 214. Expanding cavity; 215. Track; 216. Expanding slot; 22. Motor; 23. Fan wheel; 24. Driving mechanism 1; 241. Linking rail plate; 242. Guide block; 243. Spring 1; 244. Linking bar; 25. Driving mechanism 2; 251. Rotating shaft; 252. Impeller; 253. Reel; 254. Pull rope; 3. Shell; 31. Insulation shell; 32. Mounting port; 33. Perforation 1; 34. Perforation 2; 4. Heating unit; 41. Insulation board; 42. Heating tube; 43. Support tube; 44. Junction box; 45. Thermocouple; 5. Positioning heat conduction unit; 51 , heat-conducting frame shell; 52, positioning gate; 53, liquid cavity; 54, floating plate; 55, interface one; 56, interface two; 6, protective isolation module; 61, transmission pipe; 62, transmission expansion part; 621, seat cover; 622, conduit; 623, guide; 624, elastic folding airbag; 625, guide plate; 626, spring two; 63, center plate; 64, linkage folding plate; 65, partition curtain; 7, controllable flow part; 71, through pipe; 72, rail shell; 73, valve plate; 74, one-way valve; 75, water hole; 76, liquid filling valve pipe; 77, drain pipe; 78, pressure relief valve; 79, whistle; 8, pumping part; 81, storage shell; 82, piston plate; 83, piston rod; 84, spring three; 9, control box. DETAILED DESCRIPTION

[0016] See also Figure 1-21 , the present invention provides a technical solution: A scalding-proof heating device for a heating circulation fan, comprising a seat body 1, a fan module 2, a shell 3, a heating part 4, a positioning heat-conducting part 5, a protective isolation module 6, a controllable flow part 7, a pumping part 8 and a control box 9. The fan module 2 is installed on the upper side of the seat block of the seat body 1, and the shell 3 is installed on the right side of the fan module 2. The shell 3 includes a thermal insulation shell 31 fixed on the upper side of the seat body 1, and a mounting opening 32 is opened on the upper side of the thermal insulation shell 31. A pair of through-holes 33 are opened on the front and rear sides of the thermal insulation shell 31, and a through-hole 33 is opened on the front side of the thermal insulation shell 31 to the right of the through-hole 33. A positioning heat-conducting part 5 is installed on the inside of the shell 3, and the positioning heat-conducting part 5 includes a through-hole 33 and a through-hole 34. A heat-conducting frame shell 51 is fixedly connected to the inner wall of the warm shell 31, and a plurality of positioning grid openings 52 are arranged at equal distances on the inner side of the heat-conducting frame shell 51. A liquid cavity 53 with an upper opening is provided on the inner side of the heat-conducting frame shell 51, and a floating plate 54 is slidably connected to the inner side of the liquid cavity 53. A pair of interfaces 55 connected to the liquid cavity 53 are provided on both the front and rear sides of the lower end face of the heat-conducting frame shell 51, and an interface 2 56 is provided on the right side of the lower end face of the heat-conducting frame shell 51, and the interface 2 56 is connected to the liquid cavity 53. Protective isolation modules 6 are installed on both the front and rear sides of the positioning heat-conducting part 5, and a control box 9 located in front of the fan module 2 is fixedly connected to the upper side of the base body 1; the protective isolation module 6 includes A pair of transmission tubes 61 are connected to the interface 55, and the other ends of the transmission tubes 61 are installed with a transmission expansion part 62 through a through-hole 33. The transmission expansion part 62 includes a seat cover 621 connected to the transmission tube 61, and the upper and lower sides of the seat cover 621 are fixedly connected with a guide tube 622. The side of the guide tube 622 away from the shell 3 is provided with a guide channel 623. The upper and lower sides of the seat cover 621 are fixedly connected with an elastic folding airbag 624 on the inner side of the guide tube 622. The side of the elastic folding airbag 624 away from the seat cover 621 is fixedly connected with a guide plate 625 slidably connected to the guide channel 623. The side of the guide plate 625 away from the elastic folding airbag 624 is fixedly connected A second spring 626 is connected to the inner side of the guide tube 622. A middle connecting plate 63 is fixedly connected between the left and right seat covers 621. The upper and lower sides of the middle connecting plate 63 are provided with symmetrically arranged linkage folding plates 64, and the side of the linkage folding plates 64 close to the shell 3 is fixedly connected to the protruding end of the guide plate 625. The upper and lower sides of the middle connecting plate 63 are fixedly connected with a folded partition curtain 65, and the end of the partition curtain 65 away from the middle connecting plate 63 is fixedly connected to the groove of the linkage folding plate 64. The protective isolation module 6 can isolate outsiders from contact with the inner shell of the insulation shell 31 after it is unfolded, thereby reducing the risk of workers being burned by touching the outer surface of the insulation shell 31.A controllable flow portion 7 is installed on the lower side of the positioning heat conducting portion 5. The controllable flow portion 7 includes a through pipe 71 fixed on the inner side of the second perforation 34. The rear upper end of the through pipe 71 is connected to the second interface 56. The through pipe 71 is fixedly connected to a rail shell 72 on the front side of the shell 3. A valve plate 73 is slidably connected to the inner side of the rail shell 72. A one-way valve 74 aligned with the vertical pipe of the through pipe 71 is installed in the right mouth of the valve plate 73. A water hole 75 is provided on the inner side of the valve plate 73 on the left side of the one-way valve 74. The right side of the through pipe 71 is connected to a liquid adding valve pipe 76 on the upper side of the one-way valve 74. The right side of the through pipe 71 is connected to a drain pipe 77 on the upper side of the liquid adding valve pipe 76. A pressure relief valve 78 is installed on the vertical pipe of the drain pipe 77. The upper end of the drain pipe 77 is connected to a whistle. 79, the controllable flow portion 7 can be used as a controllable passage on the one hand, and its exhaust pipe 77 and pressure relief valve 78 can be used as pressure relief on the other hand, and the whistle 79 can be used as a warning; a heating portion 4 is installed at the shell 3, and the heating portion 4 includes an insulation plate 41 in the installation port 32, and the insulation plate 41 and the insulation shell 31 are detachably connected by bolts. Through this arrangement, the heating portion 4 can be removed from the shell 3, and a plurality of heating tubes 42 arranged in an equidistant arrangement are fixedly connected to the lower side of the insulation plate 41, and the heating tubes 42 are all on the inner side of the insulation shell 31, and a plurality of support tubes 43 are fixedly connected to the upper side of the insulation plate 41, and a junction box 44 is fixedly connected to the upper side of the support tube 43, and a thermocouple 4 is installed on the inner side of the junction box 44. 5, and the detection end of the thermocouple 45 passes through the insulation board 41 and is inserted into the inner side of the insulation shell 31. Through this arrangement, the thermocouple 45 can detect overheating at the heating tube 42; the insulation shell 31 is composed of an outer shell and an insulation interlayer inside the outer shell. Through this arrangement, the insulation shell 31 has the ability to insulate and keep heat. The support tubes 43 are arranged at equal distances, and the support tubes 43 and the lower heating tubes 42 are arranged one-to-one. Through this arrangement, the heating tubes 42 and the junction box 44 can be connected by passing the wire through the support tubes 43. The heating tubes 42 are all arranged on the inner side of the positioning grid 52, and the fins of the heating tubes 42 are all in contact with the inner wall of the positioning grid 52. The positioning heat-conducting portion 5 is arranged in the middle area of the heating tube 42. Through this arrangement, the positioning The heat conducting portion 5 can position each heating tube 42 to prevent the heating tube 42 from vibrating when the airflow passes through. The outer end surface of the floating plate 54 is in close contact with the inner wall of the liquid chamber 53. This arrangement prevents leakage of cooling water. The protective isolation modules 6 are arranged on the front and rear sides of the shell 3. The protective isolation modules 6 are arranged on the front and rear sides of the heating portion 4. The height dimension of the partition curtain 65 after unfolding is 0.5 times the height dimension of the shell 3. The length dimension of the partition curtain 65 is the same as the length dimension of the middle shell of the insulation shell 31. Through this arrangement, the partition curtain 65 of the protective isolation module 6 can isolate the overheating area after unfolding. The folds of the partition curtain 65 are pre-pressed with creases. Through this arrangement, the partition curtain 65 can still return to the folded state after being reset.The outer end surface of valve plate 73 fits against the inner wall of rail housing 72, preventing leakage due to gaps. One-way valve 74 is configured for unidirectional flow from bottom to top, allowing flow through pipe 71 under normal conditions. Filling valve pipe 76, consisting of a pipe body and a regulating valve, allows for replenishment of liquid in liquid chamber 53. The upper end of discharge pipe 77 and whistle 79 are both positioned above heating unit 4, preventing burns caused by the steam discharged from this height.

[0017] like Figure 1-Figure 3 、 Figure 6-Figure 9 、 Figure 21As shown, a pumping part 8 is installed on the front side of the shell 3, and the pumping part 8 includes a storage shell 81 fixedly connected to the front end surface of the insulation shell 31, and the storage shell 81 is connected to the lower left end of the through pipe 71. The left circular opening of the storage shell 81 is slidably connected to a piston rod 83, and the right end of the piston rod 83 is fixedly connected to a piston plate 82 on the inner side of the storage shell 81. A spring three 84 is provided on the outer side of the piston rod 83. The fan module 2 includes a volute 21, a motor 22, a fan wheel 23, a drive mechanism 1 24 and a drive mechanism 2 25. The volute 21 includes a wheel shell 211 arranged on the upper side of the seat block of the seat body 1, and an air inlet is opened on the front side of the wheel shell 211 212, the right side of the wheel shell 211 is fixedly connected to an exhaust pipe 213, and the exhaust pipe 213 is detachably connected to the insulation shell 31 by bolts, the lower side of the exhaust pipe 213 is provided with an expansion cavity 214, the upper side of the exhaust pipe 213 is provided with a track 215, and the right side of the track 215 is provided with an expansion groove 216, the rear side of the wheel shell 211 is fixedly connected to the motor 22, the output shaft end of the motor 22 is fixedly connected to the fan wheel 23 in the wheel shell 211, the driving mechanism 24 includes a linkage rail plate 241 slidably connected to the track 215, and the lower end of the linkage rail plate 241 is fixedly connected to the exhaust pipe 21 3 inner guide block 242, the right end surface of the linkage rail plate 241 and the right inner wall of the expansion groove 216 are fixedly connected with a spring 1 243, the front side of the linkage rail plate 241 is fixedly connected with a linkage bar 244, and the right end of the linkage bar 244 is fixedly connected to the left end surface of the valve plate 73, the driving mechanism 25 includes a rotating shaft 251 rotatably connected to the hole position of the exhaust pipe 213, the outer side of the rotating shaft 251 is fixedly connected to the impeller 252 located inside the expansion cavity 214, the front end of the rotating shaft 251 is fixed with a reel 253 located on the left side of the pumping part 8, and the inner wall of the reel groove of the reel 253 is fixed between the left end of the piston rod 83. A pull rope 254 is fixedly connected. Through this arrangement, when the device is started according to the correct steps, the airflow generated by the fan module 2 will drive the driving mechanism 1 24 and the driving mechanism 2 25 to operate. The operation of the driving mechanism 1 24 causes the through-tube 71 of the controllable flow portion 7 to become a two-way passage state. The operation of the driving mechanism 2 25 allows the pumping portion 8 to extract the cooling water in the liquid cavity 53 through the through-tube 71. In this way, when the heating tube 42 is heating, the cooling water in the liquid cavity 53 has been pumped into the storage shell 81. Under the condition that each device is correctly operated and started, the multiple protection measures of isolation, warning and cooling will not be triggered.The upper end surface of the guide block 242 is in contact with the upper inner wall of the exhaust pipe 213. This arrangement improves the stability of the guide block 242 during displacement. The guide block 242 is a right-angled trapezoidal block structure with a short left side and a long right side. The bottom of the guide block 242 is an arc-shaped surface setting. Through this setting, the airflow can push the guide block 242 to move. The guide block 242 is set on the upper side of the impeller 252. The distance between the right end surface of the linkage rail plate 241 and the right inner wall of the track 215 is the same as the distance between the center of the water hole 75 and the center of the one-way valve 74. Through this setting, the linkage rail plate 241 that moves rightward is aligned with the track 215. 5, the linkage bar 244 pushes the valve plate 73 to the right. The resulting movement of the water hole 75 aligns and connects with the through-tube 71. Spring 3 84 is positioned between the left inner wall of the reservoir 81 and the left end face of the piston plate 82. This arrangement allows spring 3 84 to serve as a reset for the piston plate 82. The outer end face of the piston plate 82 abuts against the inner wall of the reservoir 81, preventing cooling water from leaking to the left side of the piston plate 82. The piston rod 83 consists of a right crossbar and a left pull block. This arrangement allows the gas on the left side of the piston plate 82 in the reservoir 81 to be discharged when the piston plate 82 moves left.

[0018] Working process: The protective operation of the anti-scalding heating equipment of the heating circulation fan is as follows. Note 1: The electrical appliances used in this application are all powered by an external power supply and are centrally controlled by the control box 9; Note 2: The liquid cavity 53 in the positioning heat conduction part 5 will be pre-installed with distilled water for cooling. After the cooling water is pre-installed, the float plate 54 will be lifted up. The pre-installed replenishment method of the cooling water is to open the liquid filling valve pipe 76, and then connect the external water filling pipe to the liquid filling valve pipe 76, so that the water passes through the liquid filling valve pipe 76 and the through pipe 71 into the liquid cavity 53. Since the elastic folded airbag 624 is connected to the liquid cavity 53 through the transmission pipe 61 and the seat cover 621, the pre-installed cooling water Whether the replenishment amount is in place can be determined by observing the changes in the elastic folded airbag 624. If the elastic folded airbag 624 shows signs of expansion, it indicates that the liquid chamber 53 is full and the pre-installation and replenishment of cooling water is completed; Protection operation: During operation, if the staff starts the heating part 4 first but does not start the fan module 2 due to operational errors or equipment failure, the heat generated by the closely arranged and running heating tubes 42 will not be able to be dissipated in time, which will cause the temperature between the heating tubes 42 to rise rapidly, resulting in heat accumulation and overheating. This overheating may exceed the heat resistance limit of the insulation interlayer of the insulation shell 31, resulting in insulation The thermal effect is reduced, so that the surface of the insulation shell 31 heats up rapidly, increasing the risk of scalding of the staff. In order to deal with this situation, first of all, through the existing protective measures, that is, after the thermocouple 45 detects overheating, it transmits the signal to the control box 9, and the control box 9 controls the heating tube 42 to stop running and stop further heating. Then the heat generated by the heating tube 42 will be heat exchanged with the cooling water in the liquid cavity 53 through the heat-conducting frame shell 51. After absorbing a large amount of heat, the cooling water will expand rapidly and turn into water vapor. The generated water vapor will be discharged into the seat cover 621 of each transmission expansion part 62 through each transmission pipe 61 connected to the liquid cavity 53. After entering the elastic folding airbag 624, as the water vapor continues to increase, the elastic folding airbag 624 will be forced to expand rapidly and push the upper and lower guide plates 625 to move backward, compressing the second spring 626, which will cause the upper and lower linked folding plates 64 connected to the guide plates 625 to also move backward and away from the middle plate 63. The separation of the linked folding plates 64 and the middle plate 63 will expand the folded curtain 65. The expanded curtain 65 will block the front and back sides of the middle shell of the insulation shell 31, isolating outsiders from contact with the middle shell of the insulation shell 31, thereby reducing the risk of workers being burned by touching the outer surface of the insulation shell 31, and completing the isolation operation;When each elastic folding airbag 624 is fully unfolded and water vapor is still being generated, the pressure will continue to rise. When the pressure reaches a certain level, the water vapor will be discharged through the discharge pipe 77 and the pressure relief valve 78. During the discharge process, the water vapor will pass through the whistle 79 and make a whistle to warn the staff, reminding them that the heating part 4 is overheated and the fan module 2 has not started normally, completing the warning operation. Subsequently, the generation and discharge of water vapor will quickly take away the heat from the heating tube 42, so that the accumulated heat and overheating at the heating tube 42 are quickly reduced, completing the cooling operation. This process can avoid damage to the heating tube 42 due to overheating. The invention relates to a novel heating element 42 which is heated up and is used for heating the circulating fan 42. The invention relates to a heating element 42 which is heated up and is used for heating the circulating fan 42. The invention relates to a heating element 42 which is heated up and is used for heating the circulating fan 42. The invention relates to a heating element 42 which is heated up and is used for heating the circulating fan 42. In addition to the detection and protection measures, the overheated heating equipment is isolated, warned and cooled by multiple protections. When the equipment is overheated, it can be cooled quickly to protect the heating elements and isolate the personnel from the equipment to reduce the risk of burns. The staff is warned so that they can enter the manual processing link. This design solves the problem that when the heating equipment of the existing heating circulation fan is overheated, the insulation performance of the shell may fail or be greatly reduced, thereby causing the shell surface to heat up rapidly and increasing the risk of burns to the staff. Reset operation: During the reset operation, the water vapor in the elastic folding airbag 624 will be lost over time. As the water vapor in the airbag decreases, the spring 2 626 gradually recovers its elasticity and expands, pushing the guide plate 625 to move. This process causes the elastic folded airbag 624 to continue to shrink until it is completely restored to its initial shape. At the same time, the displacement of the guide plate 625 drives the linked folding plate 64 to reset together, so that the partition curtain 65 is compressed again and restored to the folded state, completing the reset operation of the protective isolation module 6. Finally, the staff needs to replenish the cooling water lost due to vaporization to the liquid chamber 53 of the positioning heat-conducting part 5 to complete the reset of the entire positioning heat-conducting part 5.Correct starting operation: Under normal operating conditions, first start the fan module 2. At this time, the running motor 22 will drive the fan wheel 23 to rotate at high speed. Then the airflow enters from the air inlet 212, passes through the exhaust pipe 213 and is discharged into the shell 3, and finally is discharged from the right end of the shell 3. In this process, the airflow will push the guide block 242 to move to the right. The right movement of the guide block 242 will drive the linkage rail plate 241 and the linkage bar 244 to move to the right together, thereby pushing the valve plate 73 of the controllable flow part 7 to move to the right. The displacement of the valve plate 73 causes the water hole 75 to move to the right and align with the through pipe 71 to connect, thereby making the through pipe 71 a two-way passage state. On the other hand, On the surface, the airflow will continue to push the impeller 252 to rotate, driving the rotating shaft 251 and the winding disk 253 to rotate, and the pull rope 254 is wound by the rotation of the winding disk 253, thereby pulling the piston rod 83 of the pumping part 8 to the left, driving the piston plate 82 to move to the left, squeezing the spring three 84, and pumping the cooling water in the liquid cavity 53 of the positioning heat conducting part 5 into the storage shell 81 through the through pipe 71, so that the floating plate 54 moves downward as the cooling water in the liquid cavity 53 decreases, so that no cooling water is left in the liquid cavity 53 of the positioning heat conducting part 5; after the above operation is completed, the heating tube 42 of the heating part 4 is started to heat the airflow passing through the shell 3, so that the discharged airflow becomes high-temperature air Flow, since the heat will be carried away by the air flow, there will be no heat accumulation and overheating in the shell 3, thereby avoiding damage to the heating tube 42. At the same time, the thermal insulation interlayer in the thermal insulation shell 31 can isolate the heat conduction to the outer surface to the greatest extent, ensuring that the temperature of the outer surface of the thermal insulation shell 31 will not cause burns to the staff. Since the cooling water in the liquid cavity 53 has been pumped into the storage shell 81, when each device is started up correctly, the multiple protection measures of isolation, warning and cooling will not be triggered, thereby ensuring the normal operation of the equipment and avoiding the wrong start of the protection measures. When the equipment stops operating, the fan module 2 will no longer generate airflow and lose the The airflow's driving force causes spring 1 243 to reset and expand, driving guide block 242, linkage rail 241, and linkage bar 244 to the left. This pulls valve plate 73, water hole 75, and one-way valve 74 to the left, allowing one-way valve 74 to re-align and connect with passage 71, transforming passage 71 into a one-way passage. Furthermore, spring 3 84 resets and expands, pushing piston plate 82 rightward, forcing the cooling water in reservoir 81 to flow through passage 71 and one-way valve 74 back into liquid chamber 53, causing float plate 54 to refloat. This completes the reset of drive mechanism 1 24, drive mechanism 2 25, controllable flow section 7, pumping section 8, and positioning heat-conducting section 5.

[0019] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A scalding-proof heating device for a heating circulation fan, comprising a base (1), a fan module (2), a shell (3), a heating part (4), a positioning heat-conducting part (5), a protective isolation module (6), a controllable flow-through part (7), a water pumping part (8), and a control box (9), characterized in that: A fan module (2) is mounted on the upper side of the seat block of the seat body (1), and a shell (3) is mounted on the right side of the fan module (2). The shell (3) includes a heat-insulating shell (31) fixed on the upper side of the seat body (1), and a mounting opening (32) is provided on the upper side of the heat-insulating shell (31). A pair of through-holes (33) are provided on the front and rear sides of the heat-insulating shell (31), and a through-hole (34) is provided on the front side of the heat-insulating shell (31) and is located on the right side of the through-hole (33). A positioning heat-conducting part (5) is mounted on the inner side of the shell (3), and the positioning heat-conducting part (5) includes a heat-conducting frame shell (51) fixedly connected to the inner wall of the heat-insulating shell (31). The heat-conducting frame shell (51) The inner side of the heat-conducting frame (51) is provided with a plurality of positioning grid openings (52) arranged at equal intervals, the inner side of the heat-conducting frame (51) is provided with a liquid cavity (53) arranged with an upper opening, the inner side of the liquid cavity (53) is slidably connected to a floating plate (54), the front and rear sides of the lower end face of the heat-conducting frame (51) are provided with a pair of interfaces (55) connected to the liquid cavity (53), the right side of the lower end face of the heat-conducting frame (51) is provided with an interface (56), and the interface (56) is connected to the liquid cavity (53), the front and rear sides of the positioning heat-conducting portion (5) are both installed with protective isolation modules (6), and the upper side of the base (1) is fixedly connected to a control box (9) located in front of the fan module (2).

2. The anti-scalding heating device for a heating circulation fan according to claim 1, characterized in that: The protective isolation module (6) includes a pair of transmission tubes (61) connected to the interface (55), the other ends of the transmission tubes (61) are each installed with a transmission expansion part (62) through the perforation (33), and the transmission expansion part (62) includes a seat cover (621) connected to the transmission tube (61), the upper and lower sides of the seat cover (621) are fixedly connected to the guide tube (622), the side of the guide tube (622) away from the shell (3) is provided with a guide channel (623), the upper and lower sides of the seat cover (621) are fixedly connected to the elastic folding airbag (624) located inside the guide tube (622), and the side of the elastic folding airbag (624) away from the seat cover (621) is fixedly connected to the elastic folding airbag (624) located inside the guide tube (622). A guide plate (625) is slidably connected to the guide channel (623), and the side of the guide plate (625) away from the elastic folding airbag (624) is fixedly connected to a second spring (626) located inside the guide tube (622). A center plate (63) is fixedly connected between the left and right seat covers (621). The upper and lower sides of the center plate (63) are symmetrically provided with linked folding plates (64), and the side of the linked folding plates (64) close to the shell (3) is fixedly connected to the protruding end of the guide plate (625). The upper and lower sides of the center plate (63) are fixedly connected to a folded partition curtain (65), and the end of the partition curtain (65) away from the center plate (63) is fixedly connected to the groove of the linked folding plate (64).

3. The anti-scalding heating device for a heating circulation fan according to claim 2, characterized in that: A controllable flow portion (7) is installed on the lower side of the positioning heat-conducting portion (5), and the controllable flow portion (7) includes a through-tube (71) fixed on the inner side of the second perforation (34), and the rear upper end of the through-tube (71) is connected to the second interface (56). The through-tube (71) is fixedly connected to a rail shell (72) located on the front side of the shell (3), and the inner side of the rail shell (72) is slidably connected to a valve plate (73), and a vertical valve (73) connected to the through-tube (71) is installed in the right opening of the valve plate (73). The one-way valve (74) is aligned with the pipe, the inner side of the valve plate (73) is provided with a water hole (75) on the left side of the one-way valve (74), the right side of the through pipe (71) is connected to the liquid filling valve pipe (76) on the upper side of the one-way valve (74), the right side of the through pipe (71) is connected to the discharge pipe (77) on the upper side of the liquid filling valve pipe (76), the vertical pipe of the discharge pipe (77) is installed with a pressure relief valve (78), and the upper end of the discharge pipe (77) is connected to a whistle (79).

4. The anti-scalding heating device for a heating circulation fan according to claim 3, characterized in that: A heating portion (4) is installed at the shell portion (3), and the heating portion (4) includes a thermal insulation plate (41) located in the mounting opening (32), and the thermal insulation plate (41) and the thermal insulation shell (31) are detachably connected by bolts. A plurality of heating tubes (42) arranged in an equidistant manner are fixedly connected to the lower side of the thermal insulation plate (41), and the heating tubes (42) are all located on the inner side of the thermal insulation shell (31). A plurality of support tubes (43) are fixedly connected to the upper side of the thermal insulation plate (41), and a junction box (44) is fixedly connected to the upper side of the support tube (43). A thermocouple (45) is installed on the inner side of the junction box (44), and a detection end of the thermocouple (45) passes through the thermal insulation plate (41) and is inserted into the inner side of the thermal insulation shell (31).

5. The anti-scalding heating device for a heating circulation fan according to claim 4, characterized in that: The thermal insulation shell (31) is composed of an outer shell and a thermal insulation interlayer inside the outer shell. The support tubes (43) are all arranged at equal intervals. The support tubes (43) and the lower heating tubes (42) are all arranged in a one-to-one correspondence. The heating tubes (42) are all arranged on the inner side of the positioning grid opening (52). The fins of the heating tubes (42) are all fitted with the inner wall of the positioning grid opening (52). The positioning heat conducting portion (5) is arranged in the middle area of the heating tube (42). The floating plate (54) ) is tightly fitted with the inner wall of the liquid cavity (53), the protective isolation modules (6) are arranged on the front and rear sides of the shell (3), and the protective isolation modules (6) are arranged on the front and rear sides of the heating part (4). The height of the partition curtain (65) after unfolding is 0.5 times the height of the shell (3), the length of the partition curtain (65) is the same as the length of the middle shell of the thermal insulation shell (31), and the folds of the partition curtain (65) are pre-pressed with creases.

6. The anti-scalding heating device for a heating circulation fan according to claim 4, characterized in that: The outer end surface of the valve plate (73) is in contact with the inner wall of the rail housing (72). The one-way valve (74) is arranged for one-way flow from bottom to top. The liquid filling valve pipe (76) is composed of a pipe body and a regulating valve. The upper end of the drain pipe (77) and the whistle (79) are both arranged higher than the heating part (4).

7. The anti-scalding heating device for a heating circulation fan according to claim 4, characterized in that: A pumping part (8) is installed on the front side of the shell (3), and the pumping part (8) includes a storage shell (81) fixedly connected to the front end surface of the heat-insulating shell (31), and the storage shell (81) is connected to the lower left end of the through pipe (71). A piston rod (83) is slidably connected to the left circular opening of the storage shell (81), and the right end of the piston rod (83) is fixedly connected to a piston plate (82) located inside the storage shell (81). A spring (84) is sleeved on the outer side of the piston rod (83). The fan module (2) includes a volute (21), a motor (22), a fan wheel (23), a drive mechanism (24), and a plurality of other components. The volute (21) comprises a wheel shell (211) arranged on the upper side of the seat block of the seat body (1), an air inlet (212) is provided on the front side of the wheel shell (211), an exhaust pipe (213) is fixedly connected to the right side of the wheel shell (211), and the exhaust pipe (213) is detachably connected to the heat-insulating shell (31) by bolts, an expansion cavity (214) is provided on the lower side of the exhaust pipe (213), a track (215) is provided on the upper side of the exhaust pipe (213), and an expansion groove (214) is provided on the right side of the track (215). 16), the rear side of the wheel housing (211) is fixedly connected to a motor (22), the output shaft end of the motor (22) is fixedly connected to a fan wheel (23) in the wheel housing (211), the driving mechanism (24) comprises a linkage rail plate (241) slidably connected to the track (215), the lower end of the linkage rail plate (241) is fixedly connected to a guide block (242) located inside the exhaust pipe (213), a spring (243) is fixedly connected between the right end surface of the linkage rail plate (241) and the right inner wall of the expansion groove (216), the linkage rail plate (241) The front side of the pumping unit (8) is fixedly connected to a linkage bar (244), and the right end of the linkage bar (244) is fixedly connected to the left end face of the valve plate (73). The second driving mechanism (25) includes a rotating shaft (251) rotatably connected to the hole of the exhaust pipe (213). The outer side of the rotating shaft (251) is fixedly connected to an impeller (252) located inside the expansion cavity (214). The front end of the rotating shaft (251) is fixed to a reel (253) located on the left side of the pumping unit (8). A pull rope (254) is fixedly connected between the inner wall of the reel groove of the reel (253) and the left end of the piston rod (83).

8. The anti-scalding heating device for a heating circulation fan according to claim 7, characterized in that: The upper end face of the guide block (242) is in contact with the upper inner wall of the exhaust pipe (213). The guide block (242) is a right-angled trapezoidal block structure with a shorter left side and a longer right side. The bottom of the guide block (242) is an arc-shaped curved surface. The guide block (242) is arranged on the upper side of the impeller (252). The distance between the right end face of the linkage rail plate (241) and the right inner wall of the track (215) is the same as the distance between the center of the water hole (75) and the center of the one-way valve (74). The spring three (84) is arranged between the left inner wall of the storage shell (81) and the left end face of the piston plate (82). The outer end face of the piston plate (82) is in contact with the inner wall of the storage shell (81). The piston rod (83) is composed of a right cross rod and a left pull block.

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