Soaking heat exchanger for non-fried baking of food

Abstract

The invention relates to the technical field of heat exchangers, in particular to a soaking heat exchanger for food non-frying baking. According to the technical scheme, the heat exchanger comprises a machine box and a plurality of heat exchange pipes fixedly installed in the machine box, the heat exchange pipes are communicated with one another, a hot air input port is formed in one end of each heat exchange pipe, a hot air output port is formed in the other end of each heat exchange pipe, and the heat exchanger further comprises a balance component installed in the machine box. The balance component comprises a flow velocity detection module installed above the hot air output port and used for detecting the flow velocity of air in the hot air output port, and an adjusting module used for controlling the transmission ratio of the driving mechanism according to detection data of the flow velocity detection module. The balance component controls the flow velocity of the air in the heat exchange pipe to be kept in a constant state under the action of different resistances. The effective convective heat exchange coefficient is kept stable, the heat exchange efficiency can be maximized, the flow speeds of fluid on the two sides of the heat exchanger are matched, and the problem that the heat exchange efficiency is unbalanced due to the fact that the flow speed difference is too large is solved.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, and in particular to a heat equalizing heat exchanger for non-frying and baking of food. Background Art

[0002] In the food industry, the heat exchanger used in the non-frying baking process plays an important role. The main function of these heat exchangers is to transfer heat. The heat exchanger used in the non-frying baking of food is used to heat the hot air after passing through the food when baking the food, so that the high-temperature air and the low-temperature air are exchanged, and then the heated low-temperature air is blown onto the food, thereby improving the utilization rate of energy.

[0003] The smoke generated during food baking usually contains moisture. During the baking process, the moisture in the food will evaporate as the temperature rises to form water vapor. This water vapor, together with other volatile compounds, constitutes part of the baking smoke. When the smoke is cooled by the heat exchanger, the water vapor inside the smoke will condense to form water droplets. The liquid water produced by condensation may change the flow characteristics of the fluid and increase the flow resistance.

[0004] In addition, since the hot air temperature used in each stage of baking food is inconsistent, and as the temperature of the food rises, the moisture inside the food will gradually decrease, the heat of the flue gas will gradually increase and the humidity will gradually decrease. This will cause the humidity, temperature and density of the flue gas entering the heat exchanger to change during the entire baking process. Changes in these factors will cause the fan to change the speed at which it absorbs the flue gas at a constant speed, that is, the flow rate of the flue gas inside the heat exchange tube will change.

[0005] An increase or decrease in flow rate usually changes the convective heat transfer coefficient, which represents the amount of heat transferred per unit area and unit temperature difference. Therefore, in order to maximize the heat transfer efficiency, the fluid flow rates on both sides of the heat exchanger should be matched. If the flow rate difference is too large, it may cause uneven heat transfer efficiency. When the fan power remains constant, the humidity and temperature changes of the hot air will affect the matching of the fluid flow rates on both sides of the heat exchanger. Summary of the invention

[0006] The purpose of the present invention is to solve the problems existing in the background technology and to provide a heat equalizing heat exchanger for non-frying and baking of food.

[0007] The technical solution of the present invention is a heat exchanger for non-fried and baked food, comprising a chassis and a plurality of heat exchange tubes fixedly installed in the chassis, wherein the plurality of heat exchange tubes are interconnected, a hot air input port is provided at one end of the heat exchange tube and a hot air output port is provided at the other end, and further comprising: An air extraction module installed on the hot air outlet, the air extraction module comprising a vortex blade rotatably installed above the hot air outlet and a driving mechanism for driving the vortex blade to rotate; A balancing component is installed inside the chassis, and includes a flow rate detection module installed above the hot gas outlet to detect the gas flow rate in the hot gas outlet, and an adjustment module to control the transmission ratio of the driving mechanism according to the detection data of the flow rate detection module. The balancing component controls the gas flow rate inside the heat exchange tube to remain constant under the action of different resistances.

[0008] Optionally, an exhaust box connected to a hot air outlet is fixedly mounted on the chassis, the vortex blade is rotatably mounted inside the exhaust box, the driving mechanism includes a first bevel gear fixedly mounted on the vortex blade, a second bevel gear rotatably mounted inside the exhaust box and meshing with the first bevel gear, a transmission belt is mounted on the second bevel gear, two reducing pulleys are rotatably mounted inside the chassis, one of the pulleys of the transmission belt is coaxially fixedly connected to the reducing pulley, and the other pulley of the transmission belt is coaxially fixedly connected to the second bevel gear, a motor having an output shaft coaxially fixedly connected to one of the reducing pulleys is fixedly mounted in the chassis, a meshing belt is mounted on the two reducing pulleys, and a tensioning assembly for tensioning the meshing belt is installed in the chassis.

[0009] Optionally, the variable diameter pulley includes two discs rotatably mounted in a chassis, a plurality of support blocks are slidably mounted between the two discs, a connecting rod is rotatably mounted on one end of the support block, a driving disc is rotatably mounted on one end of the plurality of connecting rods, a pressure rod is fixedly mounted on the driving disc, one of the discs is provided with a accommodating hole for accommodating the connecting rod, the tensioning assembly includes two sliders slidably mounted in the chassis, a first spring is fixedly mounted on the slider, the other end of the first spring is fixedly connected to the chassis, and a tensioning wheel is rotatably mounted between the two sliders.

[0010] Optionally, the flow rate detection module includes a detection box fixedly mounted on the vacuum box, a wind shield is slidably mounted in the detection box, and a diameter of the wind shield is smaller than an inner diameter of the detection box.

[0011] Optionally, the adjustment module includes a driving cylinder fixedly installed inside the detection box, a flexible sealing membrane is fixedly installed in the driving cylinder, a driving pressure block is fixedly installed on the flexible sealing membrane, a transmission rod is fixedly installed on the driving pressure block, a screw is rotatably installed on one end of the transmission rod, an internal threaded rod is fixedly installed on the wind shield, the screw is threadedly connected to the internal threaded rod, a pressure transmission cylinder is fixedly installed in the chassis, a pressure transmission pressure block is slidably installed in the pressure transmission cylinder, a round rod is fixedly installed on the pressure transmission pressure block, the two sides of the pressure transmission cylinder and the driving cylinder are connected through a driving pipe, and the pressure transmission cylinder, the driving cylinder and the driving pipe are all filled with hydraulic medium.

[0012] Optionally, a positioning block is fixedly installed on the round rod, and the positioning block is slidably connected to the chassis, two release cylinders are fixedly installed in the chassis, a release pressure block is slidably installed in the release cylinder, a release detection rod is fixedly installed on the release pressure block, a second spring is fixedly installed on the release detection rod, the other end of the second spring is fixedly connected to the release cylinder, the two release detection rods are located on both sides of the positioning block, two opening and closing cylinders are fixedly installed in the chassis, an opening and closing pressure block is slidably installed in the opening and closing cylinder, an opening and closing pressure rod is fixedly installed on the opening and closing pressure block, a third spring is fixedly installed on the opening and closing pressure rod, and the other end of the third spring is fixedly connected to the opening and closing cylinder.

[0013] Optionally, two pressure cylinders are fixedly installed in the chassis, a pressure block is slidably installed in the pressure cylinder, a fourth spring is fixedly installed on the pressure block, and the other end of the fourth spring is fixedly connected to the pressure cylinder, two transfer cylinders are fixedly installed in the chassis, a transfer block is slidably installed in the transfer cylinder, a transfer pressure rod is fixedly installed on the transfer pressure block, the transfer cylinder corresponds to the pressure cylinder one-to-one and is connected through a delivery pipe, the pressure cylinder, the transfer cylinder and the delivery pipe are all filled with hydraulic oil, a first valve is fixedly installed on the delivery pipe, two first valve control cylinders are rotatably installed in the chassis, a first valve control block is slidably installed in the first valve control cylinder, a first valve control pressure rod is fixedly installed on the first valve control pressure block, a first eccentric rod is fixedly installed on the valve core of the first valve, two first valve control pressure rods correspond to the two first eccentric rods one-to-one and are rotatably connected, both ends of the first valve control cylinder and the opening and closing cylinder are connected through a pipeline, and the first valve control cylinder, the opening and closing cylinder and the pipeline are all filled with hydraulic oil.

[0014] Optionally, an indirect cylinder is fixedly installed on the transfer pressure rod, an indirect pressure block is slidably installed in the indirect cylinder, an indirect pressure rod is fixedly installed on the indirect pressure block, both ends of the indirect cylinder are connected to each other through a bent pipe, a second valve is fixedly installed on the bent pipe, two second valve control cylinders are rotatably installed in the chassis, a second valve control pressure block is slidably installed in the second valve control cylinder, a second valve control pressure rod is fixedly installed on the second valve control pressure block, a second eccentric rod is fixedly installed on the valve core of the second valve, the second eccentric rod is rotatably connected to the second valve control pressure rod, both ends of the second valve control cylinder and the opening and closing cylinder are connected through pipelines, and the indirect cylinder, the bent pipe, the second valve control cylinder, the opening and closing cylinder and the pipeline are all filled with hydraulic medium.

[0015] Optionally, a sliding cylinder is fixedly installed in the chassis, a sliding pressure block is slidably installed in the sliding cylinder, sliding pressure rods are fixedly installed at both ends of the sliding pressure block, the sliding pressure rods correspond to the indirect pressure rods one by one and are fixedly connected, two transmission cylinders are fixedly installed in the chassis, a transmission pressure block is slidably installed in the transmission cylinder, a transmission pressure rod is fixedly installed on the transmission pressure block, one end of the two transmission cylinders is fixedly installed with an oil pipe, the other end of the oil pipe is respectively connected to the two ends of the sliding cylinder, the two transmission cylinders are connected through a round pipe, and the middle of the two transmission pressure rods is connected to the A rack is fixedly installed in the part, a gear meshing with the rack is rotatably installed in the chassis, a worm is coaxially fixedly installed on the gear, a worm wheel meshing with the worm is rotatably installed in the chassis, a pull rod is eccentrically rotatably installed on the worm wheel, a push column is rotatably installed on the other end of the pull rod, two adjusting cylinders are fixedly installed in the chassis, an adjusting pressure block is slidably installed in the adjusting cylinder, the adjusting pressure block corresponds to the pressure rod one by one and is fixedly connected, a power rod is fixedly installed on the other end of the adjusting pressure block, and the power rod corresponds to the push column one by one and is rotatably connected.

[0016] Optionally, a pressure relief cylinder is fixedly installed on the oil pipe, a pressure relief block is slidably installed in the pressure relief cylinder, a fifth spring is fixedly installed on the pressure relief block, the other end of the fifth spring is fixedly connected to the pressure relief cylinder, a push rod motor is fixedly installed on the pressure relief cylinder, and the output shaft of the push rod motor passes through one side of the pressure relief cylinder and extends to the interior of the pressure relief cylinder.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: The present invention detects the gas flow rate in the hot gas output port through a balancing component, and adjusts the rotation speed of the vortex blades according to the result of the flow rate detection, so that the gas flow rate inside the heat exchange tube remains constant under the action of different resistances. It is suitable for food baking operations with unstable temperature and humidity. The effective convection heat transfer coefficient remains stable, which helps to maximize the heat exchange efficiency, match the fluid flow rates on both sides of the heat exchanger, and prevent the problem of uneven heat exchange efficiency caused by excessive flow rate differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a heat exchanger for non-fried and baked food; Figure 2 This is a schematic diagram of the internal structure of a heat exchanger for non-fried and baked food; Figure 3 It is a structural schematic diagram of the heat exchange tube; Figure 4 It is a structural schematic diagram of a U-shaped tube; Figure 5 The structure of the exhaust module is shown in Figure 2. Figure 1 ; Figure 6 The structure of the exhaust module is shown in Figure 2. Figure 2 ; Figure 7 The structure of the exhaust module is shown in Figure 2. Figure 3 ; Figure 8 The structure of the exhaust module is shown in Figure 2. Figure 4 ; Fig. 9 It is a structural schematic diagram of a variable diameter pulley; Fig.10 The schematic diagram of the location of the transmission pipeline is shown in FIG. Fig.11 It is a position relationship diagram of the exhaust module and the balancing component; Fig.12 Schematic diagram of the position of the worm and worm wheel; Fig.13 The structure of the balancing component is shown in Figure 1. Figure 1 ; Fig.14 The structure of the balancing component is shown in Figure 1. Figure 2 ; Fig.15 The structure of the balancing component is shown in Figure 1. Figure 3 ; Fig.16 It is a schematic diagram of the structure inside the driving cylinder; Fig.17 for Fig.14 A partial enlarged view of the middle A; Fig.18 for Fig.14A partial enlarged view of point B in the middle; Fig.19 for Fig.15 A partial enlarged view of point C in the middle; Fig. 20 for Fig.16 A partial enlarged view of point D in the middle.

[0019] Figure numerals: 1, chassis; 101, heat exchange tube; 102, cool air input port; 103, cool air output port; 104, fan; 105, riser; 106, hot air input port; 107, hot air output port; 108, U-shaped tube; 109, drain port; 110, liquid; 2, exhaust module; 201, exhaust box; 202, vortex blade; 203, first bevel gear; 204, second bevel gear; 205, transmission belt; 206, variable diameter pulley; 2061, disc; 2062, support block; 2063, connecting rod; 2064, driving disc; 2065, pressure rod; 2066, accommodating hole; 207, motor; 208, meshing belt; 209, slider; 210, first spring; 211, tensioning wheel; 3, windshield; 301, driving cylinder; 302, flexible sealing film; 303, driving pressure block; 304, transmission rod; 305, screw rod; 306, internal thread rod; 307, pressure transmission cylinder; 308, pressure transmission pressure block; 309, round rod; 310, driving tube; 311, positioning block; 312, release cylinder; 313, release pressure block; 314, release detection rod; 315, second spring; 316, opening and closing cylinder; 317, opening and closing pressure block; 318, third spring; 319, pressure cylinder; 320, pressure block; 321, fourth spring; 322, transfer cylinder; 323, transfer block; 324, transfer rod; 325, delivery pipe; 326, first valve; 327, first valve control cylinder; 328, first valve control block; 329, first valve control rod; 330, indirect cylinder; 331, indirect block; 332, indirect rod; 333, elbow; 334, second valve; 335, second valve control cylinder; 336, second valve control block; 337, second valve control rod; 33 8. Pipeline; 339. Pipeline; 340. Sliding cylinder; 341. Sliding pressure block; 342. Sliding pressure rod; 343. Transmission cylinder; 344. Opening and closing pressure rod; 345. Transmission pressure block; 346. Transmission pressure rod; 347. Oil pipe; 348. Round tube; 349. Rack; 350. Gear; 351. Worm; 352. Worm wheel; 353. Pull rod; 354. Push column; 355. Adjustment cylinder; 356. Adjustment pressure block; 357. Power rod; 358. Pressure relief cylinder; 359. Pressure relief pressure block; 360. Fifth spring; 361. Push rod motor; 362. Delivery pipeline. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 4 As shown, a heat exchanger for non-fried and baked food proposed by the present invention comprises a chassis 1 and a plurality of heat exchange tubes 101 fixedly installed in the chassis 1, the plurality of heat exchange tubes 101 are interconnected, a hot air input port 106 is provided at one end of the heat exchange tube 101 and a hot air output port 107 is provided at the other end, the plurality of heat exchange tubes 101 are interconnected through a riser 105, and a cool air input port 102 and a cool air output port 103 are provided on one side of the chassis, a fan 104 is fixedly installed on the cool air output port 103, hot air will enter the interior of the heat exchange tube 101 through the hot air input port 106, and circulate inside the chassis 1, and under the action of the fan 104, cool air can be sucked into the interior of the chassis 1 through the cool air input port 102, and discharged through the cool air output port 103 after heat exchange through the plurality of heat exchange tubes 101. It is worth noting that a U-shaped tube 108 is fixedly installed at the bottom of the vertical pipe 105, and a drain port 109 is provided at one end of the U-shaped tube 108. Liquid 110 is provided in the U-shaped tube 108. Under the action of the circulation of hot air, the water droplets condensed inside the heat exchange tube 101 will be pushed into the vertical pipe 105, and under the action of gravity, the water droplets will enter the U-shaped tube 108. When the liquid level inside the U-shaped tube 108 is higher than the drain port 109, the liquid inside the U-shaped tube 108 will be discharged, and the hot air can be prevented from being discharged to the outside of the chassis through the U-shaped tube 108.

[0022] like Figure 3 , Figure 5 As shown, the heat equalizing heat exchanger of this embodiment also includes an exhaust module 2 installed on the hot air outlet 107. The exhaust module 2 includes a vortex blade 202 rotatably installed above the hot air outlet 107 and a driving mechanism for driving the vortex blade to rotate. The vortex blade 202 is driven to rotate by the driving mechanism. The rotating vortex blade 202 can generate suction to the inside of the heat exchange tube 101, so that the hot air inlet 106 generates suction to the external hot air and discharges it through the hot air outlet 107. When the driving mechanism changes the rotation speed of the vortex blade 202, the suction force of the hot air inlet 106 on the external hot air will be adjusted, thereby adjusting the flow speed of the hot air in the heat exchange tube 101, so that the flow speed of the hot air in the heat exchange tube 101 can be matched with the flow speed of the cool air in the chassis 1, thereby ensuring the heat exchange effect.

[0023] Further Figure 6 , Figure 7In the embodiment, an exhaust box 201 connected to the hot air outlet 107 is fixedly installed on the chassis 1, and a vortex blade 202 is rotatably installed inside the exhaust box 201. The driving mechanism includes a first bevel gear 203 fixedly installed on the vortex blade 202, and a second bevel gear 204 meshing with the first bevel gear 203 is rotatably installed in the exhaust box 201. A transmission belt 205 is installed on the second bevel gear 204. Two variable diameter pulleys 206 are rotatably installed in the chassis 1, one of the pulleys of the transmission belt 205 is coaxially fixedly connected with the variable diameter pulley 206, and the other pulley of the transmission belt 205 is coaxially fixedly connected with the second bevel gear 204. A motor 207 is fixedly installed in the box 1 with an output shaft coaxially fixedly connected to one of the variable diameter pulleys 206. A meshing belt 208 is installed on the two variable diameter pulleys 206. When the motor 207 rotates, it will drive one of the variable diameter pulleys 206 to rotate. The two variable diameter pulleys 206 can be rotated synchronously through the transmission of the meshing belt 208, which can drive the transmission belt 205 to rotate, and then drive the second bevel gear 204 to rotate. The rotating second bevel gear 204 will drive the first bevel gear 203 to rotate, and then the vortex blade 202 can be driven to rotate through the first bevel gear 203.

[0024] exist Figure 8 In the embodiment, a tensioning assembly for tensioning the meshing belt 208 is installed in the chassis 1. The transmission effect of the meshing belt can be effectively ensured by the tensioning assembly. The tensioning assembly includes two sliders 209 slidably installed in the chassis 1, a first spring 210 is fixedly installed on the slider 209, the other end of the first spring 210 is fixedly connected to the chassis 1, and a tensioning wheel 211 is rotatably installed between the two sliders 209. Under the action of the first spring 210, the slider 209 can be driven to always have a downward pressure, so that the tensioning wheel 211 can always be against the meshing belt 208, so that the meshing belt 208 is always in a tensioned state.

[0025] In this embodiment, Fig. 9 , Fig.10As shown, the variable diameter pulley 206 includes two disks 2061 rotatably installed in the chassis 1, and a plurality of support blocks 2062 are slidably installed between the two disks 2061. A connecting rod 2063 is rotatably installed on one end of the support block 2062, and a driving disk 2064 is rotatably installed on one end of the plurality of connecting rods 2063. A pressure rod 2065 is fixedly installed on the driving disk 2064. One of the disks 2061 is provided with a receiving hole 2066 for accommodating the connecting rod 2063, and the meshing belt 208 abuts against the support block 2062. When the size of the circle formed by the plurality of support blocks 2062 changes, the support circle of the variable diameter pulley 206 for the meshing belt 208 will become larger, and then by changing the size of the circle formed by the plurality of support blocks 2062 on the two variable diameter pulleys 206, the transmission ratio between the two variable diameter pulleys 206 can be changed, and then the rotation speed of the vortex blade 202 can be changed.

[0026] See also Figure 3 , Figure 5 As shown, the heat-averaging heat exchanger of this embodiment further includes a balancing component, which is installed inside the chassis 1. The balancing component includes a flow rate detection module installed above the hot gas outlet 107 to detect the gas flow rate in the hot gas outlet 107, and an adjustment module that controls the transmission ratio of the driving mechanism according to the detection data of the flow rate detection module. The balancing component controls the gas flow rate inside the heat exchange tube 101 to maintain a constant state under the action of different resistances. When the flow rate detection module detects that the flow rate of the hot gas is fast, it is necessary to reduce the rotation speed of the vortex blade 202. The rotation speed of the vortex blade 202 can be adjusted by the balancing component, so that the rotation speed of the vortex blade is reduced when the hot gas flow rate is fast, and the rotation speed of the vortex blade is increased when the hot gas flow rate is slow.

[0027] Among them Figure 6 As shown, the flow rate detection module includes a detection box fixedly mounted on the exhaust box 201, and a windshield 3 is slidably mounted in the detection box, and the diameter of the windshield 3 is smaller than the inner diameter of the detection box. When the hot air passes through the hot air outlet 107, a thrust will be applied to the windshield 3, which will drive the windshield 3 to rise to a certain height. By judging the height of the windshield 3, the flow rate of the hot air can be judged.

[0028] Further Fig.15 , Fig.16 and Fig. 20As shown, the adjustment module includes a driving cylinder 301 fixedly installed inside the detection box, a flexible sealing film 302 is fixedly installed inside the driving cylinder 301, a driving pressure block 303 is fixedly installed on the flexible sealing film 302, and the driving pressure block 303 can slide inside the driving cylinder 301. The gap between the driving pressure block 303 and the inner wall of the driving cylinder 301 can be blocked by the flexible sealing film 302, and the driving pressure block 303 and the inner wall of the driving cylinder 301 can be effectively sealed. In addition, a certain margin needs to be set for the driving pressure block 303 to ensure that the driving pressure block 303 can be effectively raised and lowered. The sealing method can effectively reduce the friction resistance between the driving pressure block 303 and the driving cylinder 301, so as to facilitate the windshield 3 to move up and down. A transmission rod 304 is fixedly installed on the driving pressure block 303, and a screw rod 305 is rotatably installed on one end of the transmission rod 304. An internal threaded rod 306 is fixedly installed on the windshield 3, and the screw rod is threadedly connected with the internal threaded rod 306. By rotating the screw rod 305, the windshield 3 can be driven to move up and down. The windshield 3 that moves up and down can change the final height of the windshield 3 under the same wind speed, and the detection value can be adjusted to a certain extent, so as to facilitate the change of the requirements for the hot air flow rate. A pressure transmission cylinder 307 is fixedly installed in the chassis 1, and a pressure transmission pressure block 308 is slidably installed in the pressure transmission cylinder 307. A round rod 309 is fixedly installed on the pressure transmission pressure block 308. The pressure transmission cylinder 307 and the two sides of the driving cylinder 301 are connected through a driving pipe 310. The pressure transmission cylinder 307, the driving cylinder 301 and the driving pipe 310 are all filled with hydraulic medium. When the wind shield 3 rises, the rising wind shield 3 will drive the transmission rod 304 to rise, and the rising transmission rod 304 will drive the driving pressure block 303 to rise, and the rising driving pressure block 303 will press the hydraulic medium (the hydraulic medium is a liquid that cannot be compressed under the current working environment) located above the driving pressure block 303 into the pressure transmission cylinder 307, thereby driving the pressure transmission pressure block 308 to move, and thereby driving the round rod 309 to move. It is worth noting that the inner diameter cross-sectional area of ​​the driving cylinder 301 is larger than that of the pressure transmission cylinder 307. At this time, when the driving pressure block 303 moves a short distance, the round rod 309 will move a long distance, thereby enabling the round rod 309 to move a large distance when the wind shield 3 moves a small amount.

[0029] It should be noted that Fig.15 In the figure, the wind shield 3 here will be a lightweight setting, which is suitable for the inside of the heat exchanger under medium and high wind speed environments. The rising or falling height of the wind shield 3 can also be detected by a displacement sensor, and the round rod 309 can be driven to move by a linear drive device, which can adapt to various wind speed ranges.

[0030] Further, Fig.19As shown, a positioning block 311 is fixedly installed on the round rod 309, and the positioning block 311 is slidably connected to the chassis 1. Two release cylinders 312 are fixedly installed in the chassis 1, and a release pressure block 313 is slidably installed in the release cylinder 312. A release detection rod 314 is fixedly installed on the release pressure block 313, and a second spring 315 is fixedly installed on the release detection rod 314. The other end of the second spring 315 is fixedly connected to the release cylinder 312. The two release detection rods 314 are located on both sides of the positioning block 311. Two opening and closing cylinders 316 are fixedly installed in the chassis 1. An opening and closing pressure block 317 is slidably installed in the opening and closing cylinder 316. An opening and closing pressure rod 344 is fixedly installed on the opening and closing pressure block 317, and a third spring 318 is fixedly installed on the opening and closing pressure rod 344, and the other end of the third spring 318 is fixedly connected to the opening and closing cylinder 316. When the hot air wind speed meets the requirements, the wind shield 3 will be located at the specified position. At this time, the positioning block 311 will not squeeze the release detection rod 314 and the opening and closing pressure rod 344 on both sides. When the hot air wind speed fluctuates, the rising or falling wind shield 3 will drive the positioning block 311 to move left or right, and then squeeze the release detection rod 314 and the opening and closing pressure rod 344 on the left or right side. When the positioning block 311 returns to the specified position again, the release detection rod 314 and the opening and closing pressure rod 344 will be reset under the action of the second spring 315 and the third spring 318.

[0031] like Fig.11 , Fig.14 , Fig.15 , Fig.17There are two pressure cylinders 319 fixedly installed in the chassis 1, and a pressure block 320 is slidably installed in the pressure cylinder 319. A fourth spring 321 is fixedly installed on the pressure block 320. The other end of the fourth spring 321 is fixedly connected to the pressure cylinder 319, and pressure is applied to the pressure block 320 through the fourth spring 321. Two transfer cylinders 322 are fixedly installed in the chassis 1. A transfer block 323 is slidably installed in the transfer cylinder 322, and a transfer pressure rod 324 is fixedly installed on the transfer block 323. The transfer cylinder 322 corresponds to the pressure cylinder 319 one by one and is connected through a delivery pipe 325. The pressure cylinder 319, the transfer cylinder 322 and the delivery pipe 325 are all filled with hydraulic oil. A first valve 326 is fixedly installed on the delivery pipe 325. When the first valve 326 is opened, the fourth spring 321 Under the action, the hydraulic medium inside the pressure cylinder 319 will be pressed into the interior of the transfer cylinder 322 through the delivery pipe 325, thereby driving the transfer pressure block 323 and the transfer pressure rod 324 inside the transfer cylinder 322 to move, and two first valve control cylinders 327 are rotatably installed in the chassis 1, and the first valve control pressure block 328 is slidably installed in the first valve control cylinder 327, and the first valve control pressure rod 329 is fixedly installed on the first valve control pressure block 328, and the first eccentric rod is fixedly installed on the valve core of the first valve 326. The two first valve control pressure rods 329 correspond to the two first eccentric rods one by one and are rotatably connected, and both ends of the first valve control cylinder 327 and the opening and closing cylinder 316 are connected through the pipeline 339, and the first valve control cylinder 327, the opening and closing cylinder 316 and the pipeline 339 are all filled with hydraulic oil. When the positioning block 311 squeezes the release detection rod 314 on one side, the hydraulic oil inside the release cylinder 312 will be squeezed into the first valve control cylinder 327, which will drive the first valve control pressure block 328 and the first valve control pressure rod 329 to move, and then the valve core of the first valve 326 can be driven to rotate through the first eccentric rod. At this time, the first valve 326 will be opened, and the left or right transfer pressure rod 324 can be moved. The moving transfer pressure rod 324 will change the rotation speed of the vortex blade 202. When the rotation speed of the vortex blade makes the hot air wind speed reach the target value again, the first valve control pressure rod 329 will be reset under the action of the second spring 315, and the first valve 326 will be closed.

[0032] in Fig.11 , Fig.13 , Fig.18As shown, an indirect cylinder 330 is fixedly installed on the transfer pressure rod 324, an indirect pressure block 331 is slidably installed in the indirect cylinder 330, an indirect pressure rod 332 is fixedly installed on the indirect pressure block 331, both ends of the indirect cylinder 330 are connected to each other through a bend pipe 333, a second valve 334 is fixedly installed on the bend pipe 333, two second valve control cylinders 335 are rotatably installed in the chassis 1, a second valve control pressure block 336 is slidably installed in the second valve control cylinder 335, a second valve control pressure rod 337 is fixedly installed on the second valve control pressure block 336, a second eccentric rod is fixedly installed on the valve core of the second valve 334, the second eccentric rod is rotatably connected to the second valve control pressure rod 337, both ends of the second valve control cylinder 335 and the opening and closing cylinder 316 are connected through a pipeline 338, and the indirect cylinder 330, the bend pipe 333, the second valve control cylinder 335, the opening and closing cylinder 316 and the pipeline 338 are all filled with hydraulic medium. When the positioning block 311 moves to the left, the release detection rod 314 and the opening and closing pressure rod 344 on the left will be squeezed at the same time. At this time, the first valve 326 on the left can be opened and the transfer pressure rod 324 on the left can be moved to the right. The opening and closing pressure block 317 will open the second valve 334 on the right. At this time, the two ends of the indirect cylinder 330 can be connected through the bent pipe 333, so that the indirect pressure block 331 can move freely in the indirect cylinder 330. When the second valve 334 is closed, the indirect pressure block 331 and the indirect pressure rod 332 will be unable to move.

[0033] See also Fig.12A sliding cylinder 340 is fixedly installed in the chassis 1, a sliding pressure block 341 is slidably installed in the sliding cylinder 340, sliding pressure rods 342 are fixedly installed at both ends of the sliding pressure block 341, the sliding pressure rods 342 correspond to the indirect pressure rods 332 one by one and are fixedly connected, two transmission cylinders 343 are fixedly installed in the chassis 1, a transmission pressure block 345 is slidably installed in the transmission cylinder 343, a transmission pressure rod 346 is fixedly installed on the transmission pressure block 345, one end of the two transmission cylinders 343 is fixedly installed with an oil pipe 347, and the other end of the oil pipe 347 is respectively connected to the two ends of the sliding cylinder 340 The two transmission cylinders 343 are connected through the round tube 348. When the intermediate pressure rod 324 on the left moves to the right, the sliding pressure block 341 will be driven to move through the sliding pressure rod 342, which will push the sliding pressure rod 342 on the other side to move to the right. At this time, since the second valve 334 on the right is in the open state, the indirect pressure rod 332 moves, which can effectively move the sliding pressure rod 342 to the right, and the sliding pressure block 341 moving to the right can squeeze the hydraulic medium in the sliding cylinder 340 into the transmission cylinder 343 on the right through the oil pipe 347. The driving rods 346 on both sides can be moved synchronously and in the same direction under the action of the round tube 348. A rack 349 is fixedly installed in the middle of the two driving rods 346. A gear 350 meshing with the rack 349 is rotatably installed in the chassis 1. A worm 351 is coaxially fixedly installed on the gear 350. A worm wheel 352 meshing with the worm 351 is rotatably installed in the chassis 1. The moving driving rod 346 will push the rack 349 to move, thereby driving the gear 350 to rotate. The rotating gear 350 can drive the worm 351 to rotate. The moving worm 351 will drive the worm wheel 352 to rotate. A pull rod 353 is eccentrically installed on the worm wheel 352. A push column 354 is rotatably installed on the other end of the pull rod 353. Two adjusting cylinders 355 are fixedly installed in the chassis 1. An adjusting pressure block 356 is slidably installed in the adjusting cylinder 355. Both ends of the two adjusting cylinders 355 are connected through a conveying pipe 362. The adjusting pressure block 356 corresponds to the pressure rod 2065 one by one and is fixedly connected. A power rod 357 is fixedly installed on the other end of the adjusting pressure block 356. The power rod 357 corresponds to the push column 354 one by one and is rotatably connected. The rotating worm gear 352 can drive the pull rod 353 to rotate, and the rotating pull rod 353 will push the push column 354 to move, which can drive the two adjusting blocks 356 to move synchronously in the opposite direction, so that when the diameter of one of the variable diameter pulleys 206 is reduced, the diameter of the other variable diameter pulley 206 is increased, and the transmission ratio between the two variable diameter pulleys 206 can be changed, and the rotation speed of the vortex blade 202 can be automatically adjusted according to the wind speed of the hot air.

[0034] It should be noted that the worm 351 and worm wheel 352 provided here utilize the self-locking property between the worm 351 and the worm wheel 352 to prevent the force on the variable diameter pulley 206 from being transmitted to the transmission pressure rod 346, so that the force of the transmission pressure rod 346 can be transmitted to the variable diameter pulley 206 in one direction.

[0035] like Fig.12 , Fig.13 As shown, a pressure relief cylinder 358 is fixedly installed on the oil pipe 347, a pressure relief block 359 is slidably installed in the pressure relief cylinder 358, a fifth spring 360 is fixedly installed on the pressure relief block 359, the other end of the fifth spring 360 is fixedly connected to the pressure relief cylinder 358, a push rod motor 361 is fixedly installed on the pressure relief cylinder 358, and the output shaft of the push rod motor 361 passes through one side of the pressure relief cylinder 358 and extends to the interior of the pressure relief cylinder 358. When the sliding pressure rod 342 moves to the right and squeezes the hydraulic medium in the sliding cylinder 340 into the inside of the transmission cylinder 343 on the right through the oil pipe 347, the transmission cylinder 343 on the other side will be able to squeeze the hydraulic medium into the pressure relief cylinder 358 through the oil pipe 347. The excess hydraulic medium can be carried by the pressure relief cylinder 358 and discharged into the transmission cylinder 343 through the pressure cylinder 319, and the hydraulic medium in the pressure relief cylinder 358 can be reset by the push rod motor 361. After the work is completed, the device needs to be reset, which can be done manually or by an automated device (the reset device is not a protection point of the present invention and is a prior art, so it will not be described here).

[0036] The working principle of this embodiment is as follows: when the hot air passes through the hot air outlet 107, a thrust will be applied to the wind shield 3, which will drive the wind shield 3 to rise to a certain height. The flow speed of the hot air can be determined by judging the height of the wind shield 3. When the wind shield 3 rises, the rising wind shield 3 will drive the transmission rod 304 to rise, and the rising transmission rod 304 will drive the driving pressure block 303 to rise. The rising driving pressure block 303 can drive the round rod 309 to move. When the hot air wind speed meets the requirements, the wind shield 3 will be located at the specified position. At this time, the positioning The block 311 will not squeeze the release detection rod 314 and the opening and closing pressure rod 344 on both sides. When the hot air wind speed fluctuates, the rising or falling wind shield 3 will drive the positioning block 311 to move left or right. When the positioning block 311 moves to the left, it will squeeze the release detection rod 314 and the opening and closing pressure rod 344 on the left at the same time. At this time, the first valve 326 on the left can be opened and the second valve 334 on the right can be opened. When the first valve 326 is opened, the hydraulic medium in the pressure cylinder 319 will pass through the fourth spring 321. The delivery pipe 325 is pressed into the interior of the transfer cylinder 322, thereby driving the transfer pressure block 323 and the transfer pressure rod 324 inside the transfer cylinder 322 to move, and the transfer pressure rod 324 drives the sliding pressure block 341 to move, and the hydraulic medium in the sliding cylinder 340 can be squeezed into the interior of the transmission cylinder 343 on the right side through the oil pipe 347. Under the action of the circular tube 348, the transmission pressure rods 346 on both sides can be synchronized and moved. The moving transmission pressure rod 346 will push the rack 349 to move, thereby driving the gear 350 to rotate, and the rotating gear 350 It can drive the worm 351 to rotate, and the rotating worm 351 will drive the worm wheel 352 to rotate. The rotating worm wheel 352 can drive the pull rod 353 to rotate, and the rotating pull rod 353 will push the push column 354 to move, and then it can drive the two adjusting pressure blocks 356 to move synchronously in the opposite direction, so that when the diameter of one of the variable diameter pulleys 206 is reduced, the diameter of the other variable diameter pulley 206 is increased, and then the transmission ratio between the two variable diameter pulleys 206 can be changed, and then the rotation speed of the vortex blade 202 can be automatically adjusted according to the wind speed of the hot air.

[0037] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A heat exchanger for non-fried and baked food, comprising a chassis (1) and a plurality of heat exchange tubes (101) fixedly installed in the chassis (1), wherein the plurality of heat exchange tubes (101) are interconnected, and a hot air input port (106) is provided at one end of the heat exchange tube (101) and a hot air output port (107) is provided at the other end thereof, wherein: Also includes: An air extraction module (2) mounted on the hot air outlet (107), the air extraction module (2) comprising a vortex blade (202) rotatably mounted above the hot air outlet (107) and a driving mechanism for driving the vortex blade to rotate; a balancing component, the balancing component being installed inside the chassis (1), the balancing component comprising a flow rate detection module installed above the hot gas outlet (107) for detecting the flow rate of gas in the hot gas outlet (107), and a regulating module for controlling the transmission ratio of the driving mechanism according to detection data of the flow rate detection module, the balancing component controlling the flow rate of gas inside the heat exchange tube (101) to remain constant under the action of different resistances; An exhaust box (201) connected to the hot air outlet (107) is fixedly mounted on the chassis (1); the vortex blade (202) is rotatably mounted inside the exhaust box (201); the driving mechanism comprises a first bevel gear (203) fixedly mounted on the vortex blade (202); a second bevel gear (204) meshing with the first bevel gear (203) is rotatably mounted inside the exhaust box (201); a transmission belt (205) is mounted on the second bevel gear (204); and two variable diameter belts are rotatably mounted inside the chassis (1). The transmission belt (205) is fixedly connected to the variable diameter pulley (206) coaxially, and the other pulley of the transmission belt (205) is fixedly connected to the second bevel gear (204) coaxially. A motor (207) having an output shaft coaxially fixedly connected to one of the variable diameter pulleys (206) is fixedly installed in the chassis (1). A meshing belt (208) is installed on the two variable diameter pulleys (206). A tensioning assembly for tensioning the meshing belt (208) is installed in the chassis (1).

2. A heat exchanger for non-fried and baked food according to claim 1, characterized in that: The variable diameter pulley (206) comprises two disks (2061) rotatably mounted in the chassis (1); a plurality of support blocks (2062) are slidably mounted between the two disks (2061); a connecting rod (2063) is rotatably mounted on one end of the support block (2062); a driving disk (2064) is rotatably mounted on one end of the plurality of connecting rods (2063); a pressure rod (2065) is fixedly mounted on the driving disk (2064); one of the disks (2061) is provided with a receiving hole (2066) for receiving the connecting rod (2063); the tensioning assembly comprises two sliders (209) slidably mounted in the chassis (1); a first spring (210) is fixedly mounted on the slider (209); the other end of the first spring (210) is fixedly connected to the chassis (1); and a tensioning wheel (211) is rotatably mounted between the two sliders (209).

3. A heat exchanger for non-fried and baked food according to claim 2, characterized in that: The flow rate detection module comprises a detection box fixedly mounted on the air extraction box (201), a windshield plate (3) being slidably mounted inside the detection box, and a diameter of the windshield plate (3) being smaller than an inner diameter of the detection box.

4. A heat exchanger for non-fried and baked food according to claim 3, characterized in that: The adjustment module comprises a driving cylinder (301) fixedly mounted inside the detection box, a flexible sealing film (302) fixedly mounted inside the driving cylinder (301), a driving pressure block (303) fixedly mounted on the flexible sealing film (302), a transmission rod (304) fixedly mounted on the driving pressure block (303), a screw rod (305) rotatably mounted on one end of the transmission rod (304), an internally threaded rod (306) fixedly mounted on the windshield (3), and the screw rod (30 5) is threadedly connected to the internal threaded rod (306), a pressure transmission cylinder (307) is fixedly installed in the chassis (1), a pressure transmission block (308) is slidably installed in the pressure transmission cylinder (307), a round rod (309) is fixedly installed on the pressure transmission block (308), the pressure transmission cylinder (307) and the driving cylinder (301) are connected at both sides through a driving pipe (310), and the pressure transmission cylinder (307), the driving cylinder (301) and the driving pipe (310) are all filled with hydraulic medium.

5. A heat exchanger for non-fried and baked food according to claim 4, characterized in that: A positioning block (311) is fixedly mounted on the round rod (309), and the positioning block (311) is slidably connected to the chassis (1). Two release cylinders (312) are fixedly mounted in the chassis (1), and a release pressure block (313) is slidably mounted in the release cylinder (312). A release detection rod (314) is fixedly mounted on the release pressure block (313), and a second spring (315) is fixedly mounted on the release detection rod (314), and the other end of the second spring (315) is slidably mounted on the release cylinder. (312) is fixedly connected, the two release detection rods (314) are located on both sides of the positioning block (311), two opening and closing cylinders (316) are fixedly installed in the chassis (1), an opening and closing pressure block (317) is slidably installed in the opening and closing cylinder (316), an opening and closing pressure rod (344) is fixedly installed on the opening and closing pressure block (317), a third spring (318) is fixedly installed on the opening and closing pressure rod (344), and the other end of the third spring (318) is fixedly connected to the opening and closing cylinder (316).

6. A heat equalizing heat exchanger for non-fried and baked food according to claim 5, characterized in that: Two pressure cylinders (319) are fixedly installed in the chassis (1), a pressure block (320) is slidably installed in the pressure cylinder (319), a fourth spring (321) is fixedly installed on the pressure block (320), and the other end of the fourth spring (321) is fixedly connected to the pressure cylinder (319). Two transfer cylinders (322) are fixedly installed in the chassis (1), a transfer block (323) is slidably installed in the transfer cylinder (322), and a transfer pressure rod (324) is fixedly installed on the transfer block (323). The transfer cylinder (322) corresponds to the pressure cylinder (319) one by one and is connected through a delivery pipe (325). The pressure cylinder (319), the transfer cylinder (322) and the delivery pipe (325) are all filled with hydraulic oil. A first valve (326) is fixedly mounted on the delivery pipe (325), two first valve control cylinders (327) are rotatably mounted in the chassis (1), a first valve control pressure block (328) is slidably mounted in the first valve control cylinder (327), a first valve control pressure rod (329) is fixedly mounted on the first valve control pressure block (328), a first eccentric rod is fixedly mounted on the valve core of the first valve (326), the two first valve control pressure rods (329) correspond to the two first eccentric rods one by one and are rotatably connected, both ends of the first valve control cylinder (327) and the opening and closing cylinder (316) are connected through a pipeline (339), and the first valve control cylinder (327), the opening and closing cylinder (316) and the pipeline (339) are filled with hydraulic oil.

7. A heat exchanger for non-fried and baked food according to claim 6, characterized in that: An indirect cylinder (330) is fixedly mounted on the intermediate pressure rod (324), an indirect pressure block (331) is slidably mounted in the indirect cylinder (330), an indirect pressure rod (332) is fixedly mounted on the indirect pressure block (331), two ends of the indirect cylinder (330) are interconnected via a curved pipe (333), a second valve (334) is fixedly mounted on the curved pipe (333), two second valve control cylinders (335) are rotatably mounted in the chassis (1), a second valve control pressure block (334) is slidably mounted in the second valve control cylinder (335), and a second valve control pressure block (332) is fixedly mounted on the indirect pressure block (331). 36), a second valve control pressure rod (337) is fixedly mounted on the second valve control pressure block (336), a second eccentric rod is fixedly mounted on the valve core of the second valve (334), the second eccentric rod is rotatably connected to the second valve control pressure rod (337), both ends of the second valve control cylinder (335) and the opening and closing cylinder (316) are connected through a pipeline (338), and the indirect cylinder (330), the bent pipe (333), the second valve control cylinder (335), the opening and closing cylinder (316) and the pipeline (338) are all filled with hydraulic medium.

8. The heat exchanger for non-fried and baked food according to claim 7, characterized in that: A sliding cylinder (340) is fixedly installed in the chassis (1), a sliding pressure block (341) is slidably installed in the sliding cylinder (340), sliding pressure rods (342) are fixedly installed at both ends of the sliding pressure block (341), the sliding pressure rods (342) correspond to the indirect pressure rods (332) one by one and are fixedly connected, two transmission cylinders (343) are fixedly installed in the chassis (1), a transmission pressure block (345) is slidably installed in the transmission cylinder (343), a transmission pressure rod (346) is fixedly installed on the transmission pressure block (345), one end of the two transmission cylinders (343) is fixedly installed with an oil pipe (347), the other end of the oil pipe (347) is respectively connected to the two ends of the sliding cylinder (340), the two transmission cylinders (343) are connected through a round tube (348), the middle part of the two transmission pressure rods (346) is fixedly installed with a rack (349), and the chassis (1) is fixedly installed with a transmission pressure block (345) and a transmission pressure rod (346) at the middle part. A gear (350) meshing with the rack (349) is rotatably mounted, a worm (351) is coaxially fixedly mounted on the gear (350), a worm wheel (352) meshing with the worm (351) is rotatably mounted in the chassis (1), a pull rod (353) is eccentrically rotatably mounted on the worm wheel (352), a push column (354) is rotatably mounted on the other end of the pull rod (353), two adjustment cylinders (355) are fixedly mounted in the chassis (1), an adjustment pressure block (356) is slidably mounted in the adjustment cylinder (355), both ends of the two adjustment cylinders (355) are connected through a conveying pipe (362), the adjustment pressure block (356) corresponds to the pressure rod (2065) one-to-one and is fixedly connected, and a power rod (357) is fixedly mounted on the other end of the adjustment pressure block (356), the power rod (357) corresponds to the push column (354) one-to-one and is rotatably connected.

9. A heat exchanger for non-fried and baked food according to claim 8, characterized in that: A pressure relief cylinder (358) is fixedly mounted on the oil pipe (347), a pressure relief block (359) is slidably mounted inside the pressure relief cylinder (358), a fifth spring (360) is fixedly mounted on the pressure relief block (359), the other end of the fifth spring (360) is fixedly connected to the pressure relief cylinder (358), a push rod motor (361) is fixedly mounted on the pressure relief cylinder (358), and an output shaft of the push rod motor (361) passes through one side of the pressure relief cylinder (358) and extends to the interior of the pressure relief cylinder (358).

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