A waste heat steam type gas steaming and frying equipment

Abstract

The present invention relates to a waste heat steam type gas steaming and frying integrated equipment, which relates to the technical field of commercial kitchen appliances. The structure comprises a gas stove, a steam box and a boiling water box, and also comprises a steam generating device arranged in the gas stove; a smoke exhaust pipe connected to the smoke outlet of the gas stove; a smoke suction unit connecting the smoke exhaust pipe and the smoke inlet of the steam generating device, and a steam pipe connecting the steam outlet of the steam generating device and the steam inlet of the steam box; the steam generating device comprises an evaporation chamber for storing water, a heat exchange chamber with a sandwich structure arranged in the evaporation chamber, and a plurality of hollow heat exchange tubes transversely arranged in the heat exchange chamber, the heat exchange chamber is connected to the evaporation chamber through the hollow heat exchange tubes, and the hollow heat exchange tubes are rotatably arranged relative to the heat exchange chamber; the present invention can realize the maximum recovery and utilization of smoke, and has good application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of commercial kitchen appliances, and in particular relates to a waste heat steam type gas steaming and frying integrated equipment. Background Art

[0002] At present, when a gas stove is in use, the heat from the gas combustion cannot be completely absorbed by the pot, and the waste heat directly enters the air, causing a waste of resources. To solve this technical problem, a multifunctional gas stove has appeared on the market. While cooking, it can generate steam from the high-temperature flue gas discharged from the furnace after cooking through a waste heat evaporator, provide a steamer to steam staple and non-staple food, and then use the remaining steam in the steamer to prepare boiled water, thus realizing the cascade utilization of energy. Compared with traditional single kitchen equipment such as frying stoves, steamers or water boilers, it has the advantages of low investment, compact equipment, small footprint, and simple operation.

[0003] The following technical problems exist in actual application: first, due to the limitation of the equipment volume, the heat exchange between high-temperature flue gas and waste heat evaporator is difficult to improve, and thus the problem of flue gas heat not being fully utilized still exists; second, it is found in actual application that the steam generation rate is not high, and the efficiency of high-temperature flue gas heat exchange to generate steam needs to be further improved; third, when the gas stove is temporarily suspended, it is necessary to use an external electric auxiliary heating device to ensure the continuous use of the steam box when flue gas is not supplied, and the application effect is not good. In order to improve the technical problems existing in the above-mentioned actual applications, the present invention further proposes a waste heat steam type gas steaming and frying integrated equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a waste heat steam type gas steaming and frying integrated equipment in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The present invention provides a waste heat steam type gas steaming and frying integrated device, comprising a gas stove, a steam box and a boiling water tank, and also comprising a steam generating device arranged in the gas stove, a smoke exhaust pipe connected to the smoke outlet of the gas stove, a smoke suction unit connecting the smoke exhaust pipe and the smoke inlet of the steam generating device, and a steam pipe connecting the steam outlet of the steam generating device and the steam inlet of the steam box;

[0007] The steam generating device comprises an evaporation chamber for storing water, a heat exchange chamber with a sandwich structure arranged in the evaporation chamber, and a plurality of hollow heat exchange tubes arranged transversely in the heat exchange chamber, the heat exchange chamber is connected with the evaporation chamber through the hollow heat exchange tubes, and the hollow heat exchange tubes are arranged to rotate relative to the heat exchange chamber;

[0008] The hollow heat exchange tube comprises a tube body, the air inlet end of the tube body is provided with a swirl blade at the front side of the piston member, the middle part of the tube body is provided with a transmission member and a transmission shaft is matched through the transmission member, and a plurality of disturbance blades are evenly provided on the outside of the transmission shaft;

[0009] A flue gas circulation heat exchange unit is provided outside the plurality of hollow heat exchange tubes in the heat exchange cavity, the two ends of which are respectively connected to the gas outlet and suction end of the flue gas suction unit;

[0010] The flue gas circulation heat exchange unit comprises a smoke hood arranged outside a plurality of hollow heat exchange tubes, a circulation tube 1 and a circulation tube 2 connected at both ends of the plurality of smoke hoods, a discharge pipe connecting the circulation tube 1 and the circulation tube 2, and a piston member slidably arranged in the smoke hood, the ends of the circulation tube 1 and the circulation tube 2 not connected to the discharge pipe are respectively connected to the air outlet end and the suction end of the smoke extraction unit, the ends of the plurality of smoke hoods away from the circulation tube 1 are provided with exhaust pipes which are interconnected and lead to the outside of the equipment, the exhaust pipes have a one-way air outlet valve on the end leading to the outside of the equipment, and the exhaust pipes have a pressure valve on the end leading to the outside of the equipment;

[0011] The smoke extraction unit comprises a suction fan, a pipeline structure connected to the air inlet end of the smoke circulation heat exchange unit and the suction end of the suction fan, and the smoke extraction unit drives the smoke to circulate and exchange heat between the smoke circulation heat exchange unit and a plurality of hollow heat exchange tubes.

[0012] As a further optimization scheme of the present invention, the flue gas circulation heat exchanger unit also includes a pneumatic linkage, which includes a linkage rod and a bent rod head arranged at one end of the linkage rod, and the bent rod head extending into the discharge pipe is provided with a paddle at one end, the arrangement direction of which is perpendicular to the airflow direction in the discharge pipe, and two fan-shaped blocks are provided on the linkage rod. The two ends of the circulation pipe 2 close to the discharge pipe and the flue gas extraction unit are provided with active valve structures driven to open and close by fan-shaped blocks, and a limit seat for limiting the swing angle of the paddle is provided on the inner side of the discharge pipe.

[0013] As a further optimization scheme of the present invention, the movable valve structure includes a fixed plug and a movable plug which are arranged in the circulation pipe 2 and slide with each other and abut against the inner wall of the circulation pipe 2. A support hinged to the fan-shaped block is provided on the outside of the circulation pipe 2, and the hinge point between the fan-shaped block and the support is on the same axis as the central axis of the bent rod head. A movable rod passes through the support and one end of the movable rod is in contact with the side of the fan-shaped block, and the other end is connected to the movable plug. A spring member is also provided between the support and the side of the fan-shaped block.

[0014] As a further optimization scheme of the present invention, the pipeline structure includes a flue gas input pipe connected to the air inlet end of the flue gas circulation heat exchanger unit and a three-way pipe connected to the suction end of the suction fan, and the end of the three-way pipe not connected to the suction end of the suction fan is connected to circulation pipe 2.

[0015] As a further optimization scheme of the present invention, a pre-filter is provided at one end of the smoke exhaust duct close to the steam generating device, and the air outlet end of the pre-filter is connected to the end of the three-way pipe that is not connected to the suction fan and the circulation pipe 2.

[0016] As a further optimization scheme of the present invention, the transmission member includes a gear ring arranged on the inner wall of the tube body, a gear 1 meshing with the gear ring, and a gear 2 sleeved on the transmission shaft and meshing with the gear 1.

[0017] As a further optimization scheme of the present invention, a driving transmission unit and a driven transmission unit are respectively provided in the interlayers on both sides of the heat exchange chamber, and the two ends of the plurality of hollow heat exchange tubes are located in the interlayers on both sides of the heat exchange chamber and are respectively connected to the driving transmission unit and the driven transmission unit.

[0018] As a further optimization scheme of the present invention, a partition whose bottom end does not contact the steam generating device is provided in the evaporation chamber, and a sandwich cavity is formed between the side of the partition facing away from the heat exchange cavity and the evaporation chamber. A water supply unit is also provided on the steam generating device. The water supply pipe of the water supply unit passes through the partition and extends into the evaporation chamber, and a float valve is provided at the position of the water supply pipe located in the sandwich cavity.

[0019] The beneficial effects of the present invention are:

[0020] The present invention arranges a flue gas circulation heat exchange unit along the outer side of the hollow heat exchange tube, and the flue gas can flow and circulate between the flue gas circulation heat exchange unit and the hollow heat exchange tube under the drive of the flue gas suction unit, and the hollow heat exchange tube arranged in rotation further promotes the circulation of the flue gas between the smoke collecting hood and the hollow heat exchange tube, which can meet the full utilization of the flue gas heat energy when the gas stove is in a state of being temporarily suspended;

[0021] The present invention can make the circulation pipe 2 in a closed state through the joint action of the pneumatic linkage and the movable valve structure when the smoke flows from bottom to top along the circulation pipe 1 and does not reach the discharge pipe, thereby causing the smoke to stay in the heat exchange space between each smoke collecting hood and the hollow heat exchange pipe for full heat exchange, thereby realizing effective utilization of the heat energy of the smoke;

[0022] The present invention arranges a transmission part in the hollow heat exchange tube so that the hollow heat exchange tube can rotate while the transmission part can drive the transmission shaft to drive the disturbance blade to rotate, thereby promoting the steam generated by heat exchange to quickly overflow from the hollow heat exchange tube, promoting the improvement of steam generation efficiency, and the steam output is faster, with good application effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall appearance structure diagram provided by the present invention;

[0024] Figure 2 A schematic diagram of the internal structure of the gas stove, steam box and water tank provided by the present invention;

[0025] Figure 3 A schematic diagram of the internal structure of the steam generating device provided by the present invention;

[0026] Figure 4 A schematic diagram of the installation of the hollow heat exchange tube and the piston member provided by the present invention;

[0027] Figure 5 A partial vertical cross-sectional view of the flue gas circulation heat exchange unit provided by the present invention (the transmission parts, transmission shaft and disturbance blades are not shown in the figure);

[0028] Figure 6 A partial cross-sectional view of the flue gas circulation heat exchange unit provided by the present invention (the movable valve structure is not shown in the figure);

[0029] Figure 7 A three-dimensional structural diagram of the pneumatic linkage provided by the present invention;

[0030] Figure 8 A schematic diagram of the installation structure of the movable valve structure provided by the present invention;

[0031] Fig. 9 This is a schematic diagram of the position structure of one end of the pneumatic linkage provided by the present invention extending into the discharge pipe.

[0032] In the figure: 1, gas stove; 2, steam box; 3, water tank; 4, steam generating device; 41, heat exchange chamber; 42, smoke hood; 43, circulation pipe 1; 44, discharge pipe; 45, circulation pipe 2; 46, pneumatic linkage; 461, linkage rod; 462, bent rod head; 463, paddle; 464, fan-shaped block; 47, movable valve structure; 471, support; 472, movable rod; 473, spring member; 474, movable plug; 475, fixed plug; 48, limit seat; 49, drain pipe; 410. Piston; 411. Pressure valve; 5. Smoke exhaust pipe; 6. Water supply unit; 7. Hollow heat exchange tube; 71. Tube body; 72. Swirl blade; 73. Transmission member; 731. Gear ring; 732. Gear 1; 733. Gear 2; 74. Transmission shaft; 75. Disturbance blade; 8. Smoke suction unit; 81. Suction fan; 82. Three-way pipe; 83. Smoke inlet pipe; 9. Pre-filter; 10. Driving transmission unit; 11. Driven transmission unit; 12. Partition; 13. Float valve. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Example 1

[0035] like Figure 1-2 As shown, the waste heat steam type gas steaming and frying integrated equipment provided in this embodiment includes a gas stove 1, a steamer 2 and a boiling water tank 3. The specific structures of the gas stove 1, the steamer 2 and the boiling water tank 3 are conventional structures well known in the art, and the specific installation requirements, operation requirements and subsequent maintenance requirements are well known to those skilled in the art.

[0036] In addition to the above structure, it also includes a steam generating device 4 arranged in the gas stove 1, a smoke exhaust pipe 5 connected to the smoke outlet of the gas stove 1, a smoke suction unit 8 connecting the smoke exhaust pipe 5 and the smoke inlet of the steam generating device 4, and a steam pipe connecting the steam outlet of the steam generating device 4 and the steam inlet of the steam box 2. In order to further improve the utilization rate of steam, the structure of the steam pipe includes, in addition to a section connecting the steam outlet of the steam generating device 4 and the steam inlet of the steam box 2, a section connecting the steam outlet of the steam box 2 and the coil arranged in the boiling water tank 3.

[0037] In addition, in order to avoid the situation where there is insufficient steam supply when the gas stove 1 is operated at low power or the gas stove 1 is not used, in combination with the prior art, this embodiment can also consider installing an electric auxiliary heating device on one side of the steam generating device 4, and cooperate with temperature control and other equipment to start the electric auxiliary heating device to assist in heating water when the flue gas temperature and steam temperature are lower than the set value, and automatically shut down when the flue gas temperature and steam temperature are higher than the set value;

[0038] In addition, the structure of the pot ring of the gas stove 1 is preferably a fully enclosed design, which can minimize the leakage of smoke, greatly improve the protection of the health of operators, reduce the hazards of combustion noise during use, and ensure the maximum recovery of high-temperature smoke heat.

[0039] In specific application, on one side of the gas stove 1, after turning on the water, electricity and gas circuits and connecting the power supply, the gas stove 1 enters the working state, the internal fan starts, and then the ignition probe in the burner starts to discharge, the gas main pipeline safety solenoid valve opens, and the constant flame valve is opened to ignite the constant flame. After the flame probe detects the flame, the gas safety solenoid valve on the main fire side opens, and the main fire valve is opened manually. The gas and wind are mixed evenly in the air duct and the burner before entering the furnace, and then enter the combustion chamber in the burner to be ignited by the constant flame. After achieving complete combustion in a short distance and a small space, the high-temperature flame and smoke above 1200°C in the integral casting furnace exchange heat with the bottom of the pot through radiation and convection. At the same time, the infrared reflector in the furnace also reflects heat to the bottom of the pot, prompting the bottom of the pot to effectively absorb the heat generated by the combustion of gas. After the flue gas releases heat, the temperature drops from 1200°C to below 700°C, and then flows downward from the gap between the reflector and the side wall of the furnace to merge into the exhaust pipe 5, and then flows to the steam generating device 4 through the flue gas suction unit 8. In the steam generating device 4, the flue gas releases heat for heat exchange, so that the water in the steam generating device 4 is heated until it vaporizes. After the flue gas has completed the heat exchange in the steam generating device 4, it is discharged out of the gas stove 1.

[0040] On one side of the steam box 2 and the water tank 3, the steam generated by the steam generating device 4 is passed into the steam box 2 through a steam pipe. Preferably, a steam switching valve is installed on the steam pipe. When the steam box 2 is in use, the switching valve opens the steam connected to the steam box 2 and cuts off the steam connected to the water tank 3. After the steam passes through the steam box 2 to heat the food, it flows through the coil in the water tank 3 to heat the water tank water and is discharged in the form of condensed water. When the steam box 2 is not working, the steam switching valve is in a state where the steam box 2 is closed and the water tank 3 is opened. The steam does not pass through the steam box 2 but directly enters the water tank 3 to heat the water tank water.

[0041] Example 2

[0042] On the basis of Example 1, in order to further promote the full heat exchange utilization of flue gas by the steam generating device 4, as shown in FIG. Figure 3 As shown, the steam generating device 4 includes an evaporation chamber for storing water, a heat exchange chamber 41 with a sandwich structure arranged in the evaporation chamber, and a plurality of hollow heat exchange tubes 7 arranged transversely in the heat exchange chamber 41. The heat exchange chamber 41 is connected with the evaporation chamber through the hollow heat exchange tubes 7. The water in the evaporation chamber is filled in the hollow heat exchange tubes 7. The hollow heat exchange tubes 7 are rotatably arranged relative to the heat exchange chamber 41. A flue gas circulation heat exchange unit is arranged outside the plurality of hollow heat exchange tubes 7 in the heat exchange chamber 41, and its two ends are respectively connected to the air outlet end and the suction end of the flue gas suction unit 8. The flue gas suction unit 8 drives the flue gas to circulate between the flue gas circulation heat exchange unit and the plurality of hollow heat exchange tubes 7 for heat exchange.

[0043] Specifically, Figure 3 , 5As shown in Figure 6, the flue gas circulation heat exchange unit includes a smoke hood 42 arranged outside a plurality of hollow heat exchange tubes 7, a circulation pipe 1 43 and a circulation pipe 2 45 connected at both ends of the plurality of smoke hoods 42, an exhaust pipe 44 connecting the circulation pipe 1 43 and the circulation pipe 2 45, and a piston member 410 slidably arranged in the smoke hood 42, the ends of the circulation pipe 1 43 and the circulation pipe 2 45 not connected to the exhaust pipe 44 are respectively connected to the exhaust end and the suction end of the smoke suction unit 8, the ends of the plurality of smoke hoods 42 away from the circulation pipe 1 43 are provided with exhaust pipes 49 which are interconnected and lead to the outside of the equipment, the exhaust pipe 49 has a one-way air outlet valve on the end leading to the outside of the equipment, the exhaust pipe 49 has a pressure valve 411 on the end leading to the outside of the equipment, the pressure valve 411 is in a closed state within a set pressure value, and in an open state after exceeding the set pressure value.

[0044] When in use, the smoke suction unit 8 is working, and the smoke enters from its suction end and flows into the circulation pipe 43 through the exhaust pipe. The smoke flows along the circulation pipe 43 from bottom to top. The specific flow path is: first, when the smoke flows along the circulation pipe 43 to the smoke collecting hood 42 located at the lower end of the heat exchange chamber 41, the hollow heat exchange tube 7 is in a rotating state, and the swirl structure outside it sucks the smoke into the smoke collecting hood 42. The piston member 410 in the smoke collecting hood 42 slides along the inner wall of the smoke collecting hood 42 due to the pressure of the smoke. After the original air inside the smoke collecting hood 42 is compressed, it is discharged to the outside of the equipment from the exhaust pipe 49 at the rear end of the smoke collecting hood 42. The smoke pushes the piston member 410 to the rear end of the smoke collecting hood 42 and is limited. At this time, the smoke collecting The smoke hood 42 is filled with high-temperature smoke, which exchanges heat with the hollow heat exchange tube 7 surrounded by it in a rotating state. Since the hollow heat exchange tube 7 is arranged to rotate relative to the heat exchange chamber 41, it can effectively promote the flow of smoke between the smoke hood 42 and the hollow heat exchange tube 7, thereby promoting the improvement of the heat exchange effect. Subsequently, after filling the space, the smoke will be diverted to the next adjacent smoke hood 42 and the hollow heat exchange tube 7 surrounded by it. After performing the same operation as above until the smoke fills all the smoke hoods 42 and the hollow heat exchange tube 7, the smoke exchanges heat with the hollow heat exchange tube 7 inside the heat exchange chamber 41 through the above-mentioned flow path, thereby optimizing and extending the flow path of the smoke in the heat exchange chamber 41, improving the heat exchange effect, and promoting the increase in the heat exchange amount.

[0045] As described above, after the hollow heat exchange tube 7 exchanges heat with the flue gas, the water filled therein is heated and evaporated to generate steam for use in the steam box 2 and the water tank 3. When the gas stove 1 is temporarily suspended and the flue gas supply is insufficient, the pressure in the equipment is insufficient to reach the set value of the pressure valve 411 on the discharge pipe 44, and the pressure valve 411 is in a closed state. At this time, the flue gas retained in the equipment is driven by the flue gas suction unit 8 through the discharge pipe 44 and refluxed along the circulation pipe 2 45 for repeated recycling, which can ensure that the steam can be continuously supplied for a certain period of time without immediately starting the electric auxiliary heating device, thereby saving energy consumption to a certain extent.

[0046] like Figure 3 , 7 -9, in order to promote the extension of the residence time of the flue gas in the heat exchange space composed of each smoke hood 42 and the corresponding hollow heat exchange tube 7, the flue gas circulation heat exchange unit also includes a pneumatic linkage 46, and the pneumatic linkage 46 includes a linkage rod 461 and a bent rod head 462 arranged at one end of the linkage rod 461, and the bent rod head 462 extends into the exhaust pipe 44. One end is provided with a paddle 463 whose arrangement direction is perpendicular to the airflow direction in the exhaust pipe 44, and the linkage rod 461 is provided with two fan-shaped blocks 464. The two ends of the circulation pipe 2 45 close to the exhaust pipe 44 and the flue gas suction unit 8 are provided with a movable valve structure 47 driven to open and close by the fan-shaped blocks 464, and the inner side of the exhaust pipe 44 is provided with a limit seat 48 for limiting the swing angle of the blade 463.

[0047] The movable valve structure 47 includes a fixed plug 475 and a movable plug 474 which are arranged in the circulation pipe 45 and slide with each other and abut against the inner wall of the circulation pipe 45. The outside of the circulation pipe 45 is provided with a support 471 which is hinged to the fan block 464, and the hinge point between the fan block 464 and the support 471 is on the same axis as the central axis of the curved rod head 462. A movable rod 472 passes through the support 471 and one end of the movable rod 472 is in contact with the side of the fan block 464, and the other end is connected to the movable plug 474. A spring member 473 is also provided between the support 471 and the side of the fan block 464.

[0048] In specific applications, when the smoke flows from bottom to top along the circulation pipe 1 43 and does not reach the discharge pipe 44, the circulation pipe 2 45 is in a closed state through the joint action of the pneumatic linkage 46 and the movable valve structure 47, and the smoke is extended to stay in the heat exchange space between each smoke hood 42 and the hollow heat exchange tube 7 for sufficient heat exchange;

[0049] As the smoke flows into the discharge pipe 44, the paddle 463 on the curved rod head 462 in the discharge pipe 44 will drive the curved rod head 462 to swing at a specific angle due to the smoke drive and the limit position of the limit seat 48. Under the above action, the linkage rod 461 connected to the curved rod head 462 will swing at a corresponding angle, thereby pulling the connected fan-shaped block 464 to swing relative to the support 471. Subsequently, the side of the fan-shaped block 464 pushes the movable rod 472 to slide relative to the support 471, thereby causing the movable rod 472 to extend into the movable plug connected to one end of the circulation pipe 2 45. 474 slides relative to the fixed plug 475, thereby changing the closed state of the circulation pipe 45 to an open state. At this time, under the operation of the smoke extraction unit 8, the smoke entering the exhaust pipe 44 and the smoke accumulated in the heat exchange space between the smoke hood 42 and the hollow heat exchange tubes 7 surrounded by it will flow back along the circulation pipe 45 to the smoke extraction unit 8 for circulation heat exchange. While the circulation pipe 45 is in the closed state, the smoke in the heat exchange space between the smoke hood 42 and the hollow heat exchange tubes 7 surrounded by it is retained for a longer period of time, which greatly improves the heat exchange effect and the heat exchange efficiency of the smoke.

[0050] Further, such as Figure 3 As shown, a driving transmission unit 10 and a driven transmission unit 11 are respectively provided in the interlayers on both sides of the heat exchange chamber 41, and both ends of the plurality of hollow heat exchange tubes 7 are located in the interlayers on both sides of the heat exchange chamber 41 and are respectively connected to the driving transmission unit 10 and the driven transmission unit 11. The driving transmission unit 10 is controlled by an external driving source to drive the plurality of groups of hollow heat exchange tubes 7 arranged in the heat exchange chamber 41 to rotate synchronously. After the hollow heat exchange tubes 7 rotate relative to the heat exchange chamber 41, the flow of flue gas between the smoke hood 42 and the hollow heat exchange tubes 7 can be effectively promoted, thereby promoting the improvement of the heat exchange effect. To ensure the effect of synchronous transmission, the driving transmission unit 10 is preferably a combination of a chain and a sprocket or a gear and a rack.

[0051] Further, such as Figure 3 As shown, the flue gas extraction unit 8 includes a suction fan 81, a flue gas input pipe 83 connected to the air inlet end of the flue gas circulation heat exchange unit, and a three-way pipe 82 connected to the suction end of the suction fan 81, the end of the three-way pipe 82 not connected to the suction end of the suction fan 81 is connected to the circulation pipe 2 45, and the end of the smoke exhaust pipe 5 close to the steam generating device 4 is provided with a pre-filter 9, the air outlet end of the pre-filter 9 is connected to the end of the three-way pipe 82 not connected to the suction fan 81 and the circulation pipe 2 45. When the suction fan 81 extracts smoke, the smoke coming from the smoke exhaust pipe 5 will first be filtered and purified by the pre-filter 9 to remove large particles of impurities and dust in the smoke, delaying the accumulation time of dust on the surface of the hollow heat exchange tube 7 and the smoke circulation heat exchange unit to a certain extent, and extending the cleaning and maintenance cycle.

[0052] Example 3

[0053] On the basis of Example 2, in order to further promote the heat exchange effect between the hollow heat exchange tube 7 and the flue gas, and promote the effect of steam generation, as shown in FIG. Figure 4 As shown, the hollow heat exchange tube 7 comprises a tube body 71, the air inlet end of the tube body 71 is provided with a swirl blade 72 at the front side of the piston member 410, a transmission member 73 is provided in the middle of the tube body 71, and a transmission shaft 74 is matched with the transmission member 73, and a plurality of disturbance blades 75 are evenly provided on the outside of the transmission shaft 74. The transmission member 73 comprises a gear ring 731 provided on the inner side wall of the tube body 71, a gear 1 732 meshing with the gear ring 731, and a gear 2 733 sleeved on the transmission shaft 74 and meshing with the gear 1 732.

[0054] In specific application, as described above, the hollow heat exchange tube 7 will rotate under the drive of the driving transmission unit 10, and the swirl blades 72 outside the tube body 71 will rotate accordingly. The suction force generated by the rotation of the swirl blades 72 will promote the guidance of the smoke. At the same time, the rotation of the swirl blades 72 causes the smoke to flow into the hollow heat exchange tube 7 and the smoke collecting hood 42 in a swirl shape, and the disturbance effect is aggravated. At the same time, the ring gear 731 inside the tube body 71 rotates with the tube body 71 and drives the gear 2 733 to rotate through the gear 1 732, thereby causing the transmission shaft 74 to rotate. After the transmission shaft 74 rotates, the disturbance blades 75 located thereon rotate to disturb the water in the tube body 71, thereby promoting the steam generated by the heat exchange to quickly overflow from the tube body 71, and with the disturbance of the disturbance blades 75 on one end of the transmission shaft 74 located in the evaporation chamber, the smoke quickly overflows to the steam pipe for utilization, thereby promoting the improvement of steam generation efficiency, emitting steam faster, and achieving good application effect.

[0055] Example 4

[0056] It can be seen from Example 3 that the liquid level of the evaporation chamber is in a fluctuating state during the heat exchange process. If the float valve 13 is directly installed inside the evaporation chamber, the timing of water replenishment cannot be effectively controlled, and there is a risk that the water level in the evaporation chamber is too high and overflows to the steam box 2 through the steam pipe. Therefore, this embodiment is based on Example 3. Figure 3As shown, a partition 12 whose bottom end is not in contact with the steam generating device 4 is further arranged in the evaporation chamber, and a sandwich chamber is formed between the side of the partition 12 facing away from the heat exchange chamber 41 and the evaporation chamber, and a water supply unit 6 is also arranged on the steam generating device 4, and a water delivery pipe of the water supply unit 6 penetrates the partition 12 and extends into the evaporation chamber, and a float valve 13 is arranged at the position where the water delivery pipe is located in the sandwich chamber. In application, since the bottom of the partition 12 is not connected with the steam generating device 4, when water is injected into the evaporation chamber through the water supply unit 6, both sides of the partition 12 will be in the same liquid level state, and the side where the float valve 13 is arranged will not easily produce liquid level fluctuations due to the obstruction of the partition 12, and when the liquid level of the side where the heat exchange chamber 41 is located drops due to the generation of steam, the same liquid level changes will occur in the sandwich chamber, and after the liquefaction change, the float valve 13 will open the pipeline accordingly, and then the water supply operation of the evaporation chamber will be realized through the water supply unit 6.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A waste heat steam type gas steaming and frying integrated device, comprising a gas stove (1), a steam box (2) and a boiling water tank (3), characterized in that: It also includes a steam generating device (4) arranged in the gas stove (1), a smoke exhaust pipe (5) connected to the smoke outlet of the gas stove (1), a smoke extraction unit (8) connecting the smoke exhaust pipe (5) and the smoke inlet of the steam generating device (4), and a steam pipe connecting the steam outlet of the steam generating device (4) and the steam inlet of the steam box (2); The steam generating device (4) comprises an evaporation chamber for storing water, a heat exchange chamber (41) provided in the evaporation chamber and having a sandwich structure, and a plurality of hollow heat exchange tubes (7) arranged transversely in the heat exchange chamber (41); the heat exchange chamber (41) is connected to the evaporation chamber via the hollow heat exchange tubes (7); and the hollow heat exchange tubes (7) are arranged to rotate relative to the heat exchange chamber (41); The hollow heat exchange tube (7) comprises a tube body (71); the air inlet end of the tube body (71) is located in front of the piston member (410) and is provided with a swirl blade (72); a transmission member (73) is provided in the middle of the tube body (71) and is coupled with a transmission shaft (74) through the transmission member (73); and a plurality of disturbance blades (75) are evenly provided on the outside of the transmission shaft (74); A flue gas circulation heat exchange unit is provided outside the plurality of hollow heat exchange tubes (7) in the heat exchange cavity (41), the two ends of the unit being respectively connected to the gas outlet and suction end of the flue gas suction unit (8); The flue gas circulation heat exchange unit comprises a smoke collecting hood (42) arranged outside a plurality of hollow heat exchange tubes (7), a circulation tube 1 (43) and a circulation tube 2 (45) connected to both ends of the plurality of smoke collecting hoods (42), a discharge pipe (44) connecting the circulation tube 1 (43) and the circulation tube 2 (45), and a piston member (410) slidably arranged in the smoke collecting hood (42), the ends of the circulation tube 1 (43) and the circulation tube 2 (45) not connected to the discharge pipe (44) being respectively connected to the gas outlet end and the suction end of the smoke extraction unit (8), the ends of the plurality of smoke collecting hoods (42) away from the circulation tube 1 (43) being provided with exhaust pipes (49) which are interconnected and lead to the outside of the device, the exhaust pipes (49) having a one-way gas outlet valve on the end leading to the outside of the device, and the exhaust pipes (49) having a pressure valve (411) on the end leading to the outside of the device; The smoke extraction unit (8) comprises a suction fan (81), a pipeline structure connected to an air inlet end of the smoke circulation heat exchange unit, and a suction end of the suction fan (81); the smoke extraction unit (8) drives the smoke to circulate and exchange heat between the smoke circulation heat exchange unit and the plurality of hollow heat exchange tubes (7).

2. The waste heat steam type gas steaming and frying integrated equipment according to claim 1, characterized in that: The flue gas circulation heat exchange unit further comprises a pneumatic linkage (46), the pneumatic linkage (46) comprising a linkage rod (461) and a bent rod head (462) arranged at one end of the linkage rod (461), the bent rod head (462) extending into the discharge pipe (44) having one end provided with a paddle (463) arranged in a direction perpendicular to the flow direction of the airflow in the discharge pipe (44), the linkage rod (461) being provided with two fan-shaped blocks (464), the two ends of the circulation pipe 2 (45) close to the discharge pipe (44) and the flue gas extraction unit (8) being provided with a movable valve structure (47) driven to open and close by the fan-shaped blocks (464), and the inner side of the discharge pipe (44) being provided with a limit seat (48) for limiting the swing angle of the paddle (463).

3. The waste heat steam type gas steaming and frying integrated equipment according to claim 2, characterized in that: The movable valve structure (47) comprises a fixed plug (475) and a movable plug (474) which are arranged in the circulation pipe (45) and slideably cooperate with each other and abut against the inner wall of the circulation pipe (45). The circulation pipe (45) is provided with a support (471) hinged to the fan-shaped block (464) outside, and the hinge point between the fan-shaped block (464) and the support (471) is on the same axis as the central axis of the curved rod head (462). The support (471) is penetrated by a movable rod (472), and one end of the movable rod (472) is in contact with the side of the fan-shaped block (464), and the other end is connected to the movable plug (474). A spring member (473) is also provided between the support (471) and the side of the fan-shaped block (464).

4. The waste heat steam type gas steaming and frying integrated equipment according to claim 1, characterized in that: The pipeline structure comprises a flue gas input pipe (83) connected to the air inlet end of the flue gas circulation heat exchange unit and a three-way pipe (82) connected to the suction end of the suction fan (81); the end of the three-way pipe (82) not connected to the suction end of the suction fan (81) is connected to the second circulation pipe (45).

5. The waste heat steam type gas steaming and frying integrated equipment according to claim 4, characterized in that: A pre-filter (9) is provided at one end of the smoke exhaust pipe (5) close to the steam generating device (4), and an air outlet end of the pre-filter (9) is connected to an end of the three-way pipe (82) that is not connected to the suction fan (81) and the second circulation pipe (45).

6. The waste heat steam type gas steaming and frying integrated equipment according to claim 1, characterized in that: The transmission member (73) comprises a gear ring (731) disposed on the inner side wall of the tube body (71), a gear 1 (732) meshing with the gear ring (731), and a gear 2 (733) sleeved on the transmission shaft (74) and meshing with the gear 1 (732).

7. The waste heat steam type gas steaming and frying integrated equipment according to claim 1, characterized in that: A driving transmission unit (10) and a driven transmission unit (11) are respectively arranged in the interlayers on both sides of the heat exchange chamber (41), and two ends of the plurality of hollow heat exchange tubes (7) are located in the interlayers on both sides of the heat exchange chamber (41) and are respectively connected to the driving transmission unit (10) and the driven transmission unit (11).

8. The waste heat steam type gas steaming and frying integrated equipment according to claim 1, characterized in that: A partition (12) whose bottom end does not contact the steam generating device (4) is provided in the evaporation chamber, and a sandwich cavity is formed between the side of the partition (12) facing away from the heat exchange cavity (41) and the evaporation chamber. A water supply unit (6) is also provided on the steam generating device (4), and a water supply pipe of the water supply unit (6) penetrates the partition (12) and extends into the evaporation chamber, and a float valve (13) is provided at a position of the water supply pipe located in the sandwich cavity.

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