Natural gas steam boiler water circulation device for cooked meat products

Abstract

This invention discloses a water circulation device for a natural gas steam boiler used for cooked meat products, belonging to the technical field of natural gas steam boilers. It includes a boiler body with a gas generator on one side, the output end of which is connected to the combustion chamber of the boiler body. A steam exhaust pipe is connected to the other side of the boiler body. The device also includes a water exchange tank, a condensation mechanism, a reflux mechanism, and a discharge mechanism. The water exchange tank is fixedly connected to one side of the boiler body, and the other end of the steam exhaust pipe is connected to the air inlet of the water exchange tank. The condensation mechanism is located inside the water exchange tank's internal cavity, the reflux mechanism is located at the bottom outlet of the water exchange tank, and the discharge mechanism is located at the exhaust outlet of the water exchange tank. The water circulation device for a natural gas steam boiler used for cooked meat products provided by this invention can separate and circulate moisture in high-temperature steam, eliminating the need for continuous water addition during boiler operation, thus reducing water consumption and demonstrating high practicality.

Description

Technical Field

[0001] This invention belongs to the field of natural gas steam boiler technology, and specifically relates to a water circulation device for a natural gas steam boiler used for cooked meat products. Background Technology

[0002] Roasted chicken and braised pork head are both types of braised cooked meat products. They are made from livestock and poultry meat and are processed through braising, stewing and other techniques. They can be eaten directly and have a tender and flavorful taste. They are common ready-to-eat braised foods. Natural gas steam boilers are required for the processing of roasted chicken, braised pork head and other cooked meat products.

[0003] A natural gas steam boiler is a thermal energy device that uses natural gas as fuel to heat water in the boiler drum and generate high-temperature, high-pressure steam. It consists of a burner, boiler body, steam-water system and automatic control system. The natural gas is fully burned in the burner, and the high-temperature flue gas heats the boiler water through multiple passes to generate steam. The thermal efficiency is usually above 95%.

[0004] Most existing natural gas steam boilers adopt a single-pass heat utilization method, that is, after the steam generated by the boiler releases heat through the heat utilization equipment, the remaining exhaust steam is mostly directly discharged or discharged after only simple condensation treatment. Since the existing equipment only utilizes the latent heat of steam in the heating process, while a large amount of latent heat of water after vaporization is lost with the exhaust steam, a large amount of tap water needs to be continuously added during boiler operation. This not only wastes water resources, but also increases water treatment costs and energy consumption, and its practicality needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a water circulation device for a natural gas steam boiler used for cooked meat products, which can separate and circulate the moisture in high-temperature steam, eliminating the need for continuous water addition during boiler operation, thus reducing water consumption and making it highly practical.

[0006] To achieve the above objectives, embodiments of the present invention provide a natural gas steam boiler water circulation device for cooked meat products, comprising a boiler body, a gas generator disposed on one side of the boiler body, the output end of the gas generator being connected to the combustion chamber of the boiler body, and a steam discharge pipe connected to the other side of the boiler body, and further comprising: a water exchange tank, a condensation mechanism, a reflux mechanism, and a discharge mechanism. The water exchange tank is fixedly connected to one side of the boiler body, and the other end of the steam discharge pipe is connected to the air inlet of the water exchange tank. The water exchange tank can receive high-temperature steam discharged from the boiler body. The condensation mechanism is disposed in the internal cavity of the water exchange tank and can condense the high-temperature steam entering the water exchange tank into liquid water. The reflux mechanism is disposed at the bottom outlet of the water exchange tank and can transport the condensed liquid water in the water exchange tank back to the water storage chamber of the boiler body. The discharge mechanism is disposed at the exhaust end of the water exchange tank and can discharge the remaining non-condensable gases after the steam in the water exchange tank is condensed.

[0007] To recycle the moisture in the high-temperature steam entering the water exchange tank, the condensation mechanism includes a controller, a refrigeration pipe, a guide assembly, and a stirring assembly. The controller is installed on one side of the water exchange tank. The refrigeration pipe is spirally arranged inside the water exchange tank, with one end penetrating the tank and electrically connected to the controller. This reduces the ambient temperature inside the water exchange tank, facilitating the condensation of the high-temperature steam. The guide assembly is located at the top inner side of the air inlet of the water exchange tank, guiding the high-temperature steam entering the tank to the heat exchange surface of the refrigeration pipe. The stirring assembly is located inside the water exchange tank and within the gaps in the refrigeration pipe, agitating the steam to promote its circulation. The steam makes large-area contact with the refrigeration pipes. The guiding assembly includes: a rotating shaft, a guide plate, a guide fan, and a swing assembly. Two rotating shafts are provided. A through groove is opened at the top of the water exchange tank. The two rotating shafts are symmetrically connected to the inner walls of the two sides of the through groove. The two ends of the guide plate are fixedly connected to opposite ends of the two rotating shafts, and the steam guiding angle is adjusted by swinging the rotating shafts. The guide fan is embedded in the guide plate, and its output end faces the refrigeration pipes inside the water exchange tank, blowing steam towards the heat exchange surface of the refrigeration pipes. The swing assembly is located at the top of the water exchange tank and connected to one of the rotating shafts, driving the guide plate to reciprocate. The swing assembly includes a rotating gear, a rack, and an electric cylinder. The rotating gear is coaxially fixedly connected to the end of one of the rotating shafts extending out of the water exchange tank. The rack is slidably connected to the top of the water exchange tank via a sliding assembly. The rack meshes with the rotating gear and can move linearly to drive the rotating gear to rotate. The electric cylinder is installed at the top of the water exchange tank, and its output end is connected to the rack via a drive frame, configured to drive the rack to perform linear reciprocating motion. The sliding assembly includes a slider and a slide rod. Two sliders are provided, and both sliders are fixedly connected to one side of the rack. The drive frame is fixedly connected to one of the sliders, and the slide rod is horizontally fixed. The two sliders are fixedly connected to the top of the water exchange tank and parallel to the gear rod. Each slider has a sliding hole, and the slider rod is slidably connected in the two sliding holes. It is configured to guide and limit the linear movement of the gear rod. The stirring assembly includes a stirring rod and a first motor. The stirring rod is vertically rotatably connected in the water exchange tank. Multiple stirring plates are fixedly connected to the stirring rod along the height direction and are configured to stir the steam as the stirring rod rotates. The first motor is installed at the center of the top of the water exchange tank through a motor base. The output end of the first motor is sealed through the top wall of the water exchange tank and is coaxially fixedly connected to the top of the stirring rod. It is configured to drive the stirring rod to rotate around its own axis.

[0008] To recycle the condensed water back to the boiler body, the return mechanism includes a water pump and a delivery pipe. The water pump is installed on one side of the water exchange tank near its bottom. The input end of the water pump is connected to the return pipe, and the other end of the return pipe is connected to the bottom of the water exchange tank, enabling the condensate in the water exchange tank to be drawn into the water pump. One end of the delivery pipe is connected to the output end of the water pump, and the other end of the delivery pipe is sealed to the return water port of the boiler body. It is configured to deliver the pressurized condensate back to the boiler body. The bottom of the water exchange tank is inverted conical, and the bottom of the cone is connected to the return pipe, enabling the collection and storage of condensed liquid water.

[0009] To discharge non-condensable gases, the discharge mechanism includes a discharge pipe and a sealing plate. The discharge pipe is sealed and connected to the exhaust end on one side of the water exchange tank. A discharge fan is installed at the top of the discharge pipe and is configured to accelerate the discharge speed of non-condensable gases in the water exchange tank. The size of the sealing plate matches the internal channel of the discharge pipe. The sealing plate is rotatably disposed inside the discharge pipe by a drive assembly and is configured to open or close the internal channel of the discharge pipe after rotation. The drive assembly includes a base frame and a second motor. The base frame is fixedly connected to the outer wall of the bottom end of the discharge pipe. The second motor is installed at the bottom end of the base frame. The output end of the second motor sealably penetrates the base frame and the bottom wall of the discharge pipe and is fixedly connected to the rotation center of the sealing plate, and is configured to drive the sealing plate to rotate around its own axis.

[0010] The significant technical advantages of this invention are as follows: by setting up a water exchange tank, a condensation mechanism, a reflux mechanism, and a discharge mechanism, the water in the high-temperature steam can be efficiently condensed and separated, and the clean condensate can be recycled back to the boiler body for use, which solves the problem of large water consumption caused by exhaust steam discharge, and the boiler does not need to be frequently replenished with water during operation; at the same time, the discharge mechanism can promptly discharge non-condensable gases, avoiding the decrease in heat exchange efficiency caused by the increase in system pressure, and has high practicality and stability. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 This is a structural schematic diagram from another angle in one embodiment of the present invention; Figure 3This is a cross-sectional structural schematic diagram of the water exchange tank in one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a guide component in one embodiment of the present invention; Figure 5 This is a schematic diagram of the condensation mechanism in one embodiment of the present invention; Figure 6 This is a schematic diagram of the emission mechanism in one embodiment of the present invention; Figure 7 This is a schematic diagram of the recirculation mechanism in one embodiment of the present invention.

[0013] In the diagram: 1. Boiler body; 2. Gas generator; 3. Steam exhaust pipe; 4. Water exchange tank; 5. Controller; 6. Refrigeration pipe; 7. Rotating shaft; 8. Guide plate; 9. Guide fan; 10. Rotating gear; 11. Gear rack; 12. Electric cylinder; 13. Slider; 14. Slide rod; 15. Stirring rod; 16. Stirring plate; 17. First motor; 18. Water pump; 19. Return pipe; 20. Conveying pipe; 21. Discharge pipe; 22. Exhaust fan; 23. Sealing plate; 24. Base frame; 25. Second motor. Detailed Implementation The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0015] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0017] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0018] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0019] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation", "connection", "linking", and "fixing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components.

[0020] Please see Figures 1-7 This invention illustrates a natural gas steam boiler water circulation device for cooked meat products according to an embodiment of the present invention. It includes a boiler body 1, a gas generator 2 disposed on one side of the boiler body 1, the output end of the gas generator 2 connected to the combustion chamber of the boiler body 1, and a steam discharge pipe 3 connected to the other side of the boiler body 1. The device also includes a water exchange tank 4, a condensation mechanism, a reflux mechanism, and a discharge mechanism. The water exchange tank 4 is fixedly connected to one side of the boiler body 1, and the other end of the steam discharge pipe 3 is connected to the air inlet of the water exchange tank 4. The water exchange tank 4 can receive high-temperature steam discharged from the boiler body 1. The condensation mechanism is disposed in the internal cavity of the water exchange tank 4 and can condense the high-temperature steam entering the water exchange tank 4 to form liquid water. The reflux mechanism is disposed at the bottom outlet of the water exchange tank 4 and can transport the condensed liquid water in the water exchange tank 4 back to the water storage chamber of the boiler body 1. The discharge mechanism is disposed at the exhaust end of the water exchange tank 4 and can discharge the remaining non-condensable gases after the steam in the water exchange tank 4 has been condensed.

[0021] To recycle the moisture in the high-temperature steam discharged from the water exchanger tank 4, the condensation mechanism includes: a controller 5, a refrigeration pipe 6, a guide assembly, and a stirring assembly. The controller 5 is installed on one side of the water exchanger tank 4. The refrigeration pipe 6 is spirally arranged inside the water exchanger tank 4, with one end penetrating the water exchanger tank 4 and electrically connected to the controller 5. This reduces the ambient temperature inside the water exchanger tank 4, condensing the high-temperature steam. The guide assembly is located at the top inner side of the air inlet of the water exchanger tank 4, guiding the high-temperature steam entering the water exchanger tank 4 to the heat exchange surface of the refrigeration pipe 6. The stirring assembly is located inside the water exchanger tank 4 and within the gaps of the refrigeration pipe 6, agitating the steam to ensure that the steam entering the water exchanger tank 4 interacts with the heat exchange surface of the refrigeration pipe 6. The area contact guide assembly includes: a rotating shaft 7, a guide plate 8, a guide fan 9, and a swing assembly. Two rotating shafts 7 are provided, and a through groove is opened at the top of the water exchange tank 4. The two rotating shafts 7 are symmetrically connected to the inner walls of the two sides of the through groove. The two ends of the guide plate 8 are fixedly connected to the opposite ends of the two rotating shafts 7, and the steam guiding angle is adjusted by the swing of the rotating shafts 7. The guide fan 9 is embedded in the guide plate 8, and the output end of the guide fan 9 faces the refrigeration pipe 6 inside the water exchange tank 4, and can blow steam towards the heat exchange surface of the refrigeration pipe 6. The swing assembly is located at the top of the water exchange tank 4 and connected to one of the rotating shafts 7, and can drive the guide plate 8 to reciprocate. The swing assembly includes: a rotating gear 10, a gear... The rod 11 and electric cylinder 12, along with the rotating gear 10, are coaxially and fixedly connected to the end of one of the rotating shafts 7 extending out of the water exchange tank 4. The rack 11 is slidably connected to the top of the water exchange tank 4 via a sliding assembly. The rack 11 meshes with the rotating gear 10, enabling linear movement that drives the rotating gear 10 to rotate. The electric cylinder 12 is installed at the top of the water exchange tank 4. The output end of the electric cylinder 12 is connected to the rack 11 via a drive frame 26 and is configured to drive the rack 11 to perform linear reciprocating motion. The sliding assembly includes a slider 13 and a slide rod 14. Two sliders 13 are provided, and both sliders 13 are fixedly connected to one side of the rack 11. The drive frame 26 is fixedly connected to one of the sliders 13. The slide rod 14 is horizontally fixedly connected to the water exchange tank 4. The top of the tank 4 is parallel to the toothed rod 11. Two sliders 13 are provided with sliding holes. The slider 14 is slidably connected in the two sliding holes and is configured to guide and limit the linear movement of the toothed rod 11. The stirring assembly includes a stirring rod 15 and a first motor 17. The stirring rod 15 is vertically rotatably connected in the water exchange tank 4. Multiple stirring plates 16 are fixedly connected to the stirring rod 15 along the height direction and are configured to stir the steam as the stirring rod 15 rotates. The first motor 17 is installed at the center of the top of the water exchange tank 4 through a motor base. The output end of the first motor 17 is sealed through the top wall of the water exchange tank 4 and is coaxially fixedly connected to the top of the stirring rod 15 and is configured to drive the stirring rod 15 to rotate around its own axis.

[0022] The controller 5 controls the refrigeration pipe 6 to condense and exchange heat with the high-temperature steam entering the water exchange tank 4. During this process, the electric cylinder 12 drives the drive frame 26 and the rack 11 to move. When the rack 11 moves, it drives the rotating gear 10 and the guide plate 8 to swing, which in turn drives the guide fan 9 to swing, thereby blowing and guiding the high-temperature steam entering the water exchange tank 4 onto the refrigeration pipe 6. The first motor 17 drives the stirring rod 15 and the stirring plate 16 to rotate, thereby increasing the contact area between the high-temperature steam and the refrigeration pipe 6, so that the moisture in the high-temperature steam condenses and falls into the bottom of the water exchange tank 4 for storage.

[0023] Through the synergistic effect of the above-mentioned condensation mechanism, the high-temperature steam is evenly blown onto the surface of the refrigeration pipe 6 under the oscillation guidance of the guide plate 8 and the push of the guide fan 9. At the same time, the rotation of the stirring plate 16 breaks the laminar flow state of the steam, forcing the steam to achieve large-area and high-efficiency contact heat exchange with the cold outer wall of the refrigeration pipe 6, and quickly condenses into liquid water and drips into the inverted conical bottom of the water exchange tank 4.

[0024] When the electric cylinder 12 reciprocates, it drives the rack 11 to move linearly, which in turn drives the rotating gear 10 and the guide plate 8 to oscillate back and forth, expanding the steam purging range. This oscillating guide design allows high-temperature steam to evenly cover the entire spiral surface of the refrigeration pipe 6, avoiding localized steam accumulation that could lead to heat exchange dead zones, thereby significantly improving condensation efficiency.

[0025] To recycle the condensed water stored in the boiler body 1, the return mechanism includes a water pump 18 and a delivery pipe 20. The water pump 18 is installed on one side of the water exchange tank 4 near the bottom. The input end of the water pump 18 is connected to the return pipe 19, and the other end of the return pipe 19 is connected to the bottom of the water exchange tank 4, which can draw the condensed water in the water exchange tank 4 into the water pump 18. One end of the delivery pipe 20 is connected to the output end of the water pump 18, and the other end of the delivery pipe 20 is sealed to the return water port of the boiler body 1. It is configured to deliver the pressurized condensed water from the water pump 18 back into the boiler body 1. The bottom of the water exchange tank 4 is set in an inverted cone shape, and the bottom of the cone is connected to the return pipe 19, which can collect and store the condensed liquid water.

[0026] Water is pumped out from the bottom of the water exchange tank 4 by the water pump 18 through the return pipe 19 and transported back to the boiler body 1 through the delivery pipe 20, thereby realizing the recycling of water.

[0027] To discharge non-condensable gases, the discharge mechanism includes a discharge pipe 21 and a sealing plate 23. The discharge pipe 21 is sealed and connected to the exhaust end on one side of the water exchange tank 4. A discharge fan 22 is installed at the top of the discharge pipe 21 and is configured to accelerate the discharge speed of non-condensable gases in the water exchange tank 4. The size of the sealing plate 23 matches the internal channel of the discharge pipe 21. The sealing plate 23 is rotatably disposed inside the discharge pipe 21 by a drive assembly and is configured to open or close the internal channel of the discharge pipe 21 after rotation. The drive assembly includes a base frame 24 and a second motor 25. The base frame 24 is fixedly connected to the outer wall of the bottom end of the discharge pipe 21. The second motor 25 is installed at the bottom end of the base frame 24. The output end of the second motor 25 is sealed and penetrates the bottom wall of the base frame 24 and the discharge pipe 21 and is fixedly connected to the rotation center of the sealing plate 23. It is configured to drive the sealing plate 23 to rotate around its own axis.

[0028] When non-condensable gases need to be discharged, the sealing plate 23 opens, and the exhaust fan 22 works simultaneously. During normal condensation, the sealing plate 23 closes to maintain the airtightness of the water exchange tank 4. This active discharge and sealing structure can promptly discharge accumulated non-condensable gases, prevent the internal pressure of the system from rising and hindering the entry of steam, and ensure that the condensation process is continuously efficient. At the same time, the sealing plate 23 can be closed during condensation to prevent the backflow of hot air from affecting the cooling effect, further saving energy.

[0029] Working principle: When the high-temperature exhaust steam discharged from the boiler body 1 enters the water exchanger tank 4 through the steam discharge pipe 3, the controller 5 activates the condensation mechanism. The guide plate 8 in the guide assembly reciprocates under the drive of the swing assembly, and at the same time, the guide fan 9 starts, blowing the incoming steam evenly onto the surface of the spiral refrigeration pipe 6. Meanwhile, the stirring rod 15 in the stirring assembly drives the stirring plate 16 to rotate at low speed in the gap of the refrigeration pipe 6, forcibly disturbing the steam flow and breaking the low-temperature saturated steam boundary layer near the pipe wall, so that the high-temperature steam can continuously and fully contact the refrigeration pipe 6 for heat exchange. Under the low temperature of the refrigeration pipe 6, the steam rapidly condenses into liquid water and drips into the inverted cone-shaped water storage area at the bottom of the water exchange tank 4 under the action of gravity. During the condensation process, the air and other non-condensable gases mixed in the steam gradually accumulate at the top of the water exchange tank 4. The second motor 25 drives the sealing plate 23 to rotate and open the discharge pipe 21 channel. At the same time, the discharge fan 22 starts to quickly extract and discharge the accumulated non-condensable gases to prevent the formation of air resistance inside the system from affecting the entry of steam. After the discharge is completed, the sealing plate 23 automatically resets and closes to maintain the airtightness of the water exchange tank 4. The water pump 18 draws the collected condensate into the water storage chamber through the return pipe 19 and injects it into the water storage chamber from the return water port of the boiler body 1 through the delivery pipe 20, thus completing the recycling of condensate.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of protection of the claims of the present invention.

Claims

1. A natural gas steam boiler water circulation device for cooked meat products, comprising a boiler body (1), wherein a gas generator (2) is provided on one side of the boiler body (1), the output end of the gas generator (2) is connected to the combustion chamber of the boiler body (1), and a steam discharge pipe (3) is connected to the other side of the boiler body (1), characterized in that, Also includes: Water exchange tank (4), the water exchange tank (4) is fixedly connected to one side of the boiler body (1), the other end of the steam discharge pipe (3) is connected to the air inlet of the water exchange tank (4), and the water exchange tank (4) can receive the high temperature steam discharged from the boiler body (1). The condensation mechanism is installed in the internal cavity of the water exchange tank (4) and can condense the high-temperature steam entering the water exchange tank (4) into liquid water. The return mechanism is located at the bottom outlet of the water exchange tank (4) and can transport the condensed liquid water in the water exchange tank (4) back to the water storage chamber of the boiler body (1). The discharge mechanism is located at the exhaust end of the water exchange tank (4) and can discharge the non-condensable gas remaining after the steam in the water exchange tank (4) is condensed to the outside.

2. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 1, characterized in that, The condensation mechanism includes: A controller (5) is installed on one side of the water exchange tank (4); The refrigeration pipe (6) is spirally arranged inside the water exchange tank (4). One end of the refrigeration pipe (6) passes through the water exchange tank (4) and is electrically connected to the controller (5). It can reduce the ambient temperature inside the water exchange tank (4) to prevent the condensation of high-temperature steam. The guiding component is located at the top of the inner side of the air inlet of the water exchange tank (4) and can guide the high-temperature steam entering the water exchange tank (4) to the heat exchange surface of the refrigeration pipe (6). The stirring assembly is located inside the water exchange tank (4) and in the gap of the refrigeration pipe (6). It can stir the steam so that the steam entering the water exchange tank (4) comes into contact with the refrigeration pipe (6) over a large area.

3. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 2, characterized in that, The guiding component includes: Rotating shaft (7), two rotating shafts (7) are provided, and a through groove is provided at the top of the water exchange tank (4). The two rotating shafts (7) are symmetrically rotated and connected to the inner walls of the two sides of the through groove. Guide plate (8), the two ends of the guide plate (8) are fixedly connected to the opposite ends of the two rotating shafts (7), and the steam guiding angle is adjusted by swinging with the rotating shafts (7); A guide fan (9) is embedded in a guide plate (8). The output end of the guide fan (9) faces the refrigeration pipe (6) inside the water exchange tank (4) and can blow steam to the heat exchange surface of the refrigeration pipe (6). The swing assembly is located at the top of the water exchange tank (4) and connected to one of the rotating shafts (7), which can drive the guide plate (8) to swing back and forth.

4. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 3, characterized in that, The swing component includes: Rotating gear (10), which is coaxially fixedly connected to the end of one of the rotating shafts (7) extending out of the water exchange tank (4); The rack (11) is slidably connected to the top of the water exchange tank (4) through a sliding assembly. The rack (11) meshes with the rotating gear (10) and can move linearly to drive the rotating gear (10) to rotate. An electric cylinder (12) is installed at the top of the water exchange tank (4). The output end of the electric cylinder (12) is connected to the rack (11) through the drive frame (26) and is configured to drive the rack (11) to perform linear reciprocating motion.

5. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 4, characterized in that, The sliding component includes: Slider (13), two sliders (13) are provided, and both sliders (13) are fixedly connected to one side of the rack (11). The drive frame (26) is fixedly connected to one of the sliders (13). The slide rod (14) is horizontally fixed to the top of the water exchange tank (4) and parallel to the toothed rod (11). Both of the sliders (13) have sliding holes. The slide rod (14) is slidably connected in the two sliding holes and is configured to guide and limit the linear movement of the toothed rod (11).

6. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 5, characterized in that, The stirring assembly includes: A stirring rod (15) is vertically rotatably connected to the water exchange tank (4). Multiple stirring plates (16) are fixedly connected to the stirring rod (15) along the height direction and are configured to stir the steam as the stirring rod (15) rotates. The first motor (17) is mounted on the top center of the water exchange tank (4) via a motor mount. The output end of the first motor (17) is sealed through the top wall of the water exchange tank (4) and is coaxially fixedly connected to the top of the stirring rod (15). It is configured to drive the stirring rod (15) to rotate around its own axis.

7. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 1, characterized in that, The reflux mechanism includes: Water pump (18) is installed on one side of the water exchange tank (4) and near the bottom. The input end of the water pump (18) is connected to a return pipe (19), and the other end of the return pipe (19) is connected to the bottom of the water exchange tank (4), which can draw condensate in the water exchange tank (4) into the water pump (18). The conveying pipe (20) has one end connected to the output end of the water pump (18) and the other end sealed to the return water port of the boiler body (1). It is configured to convey the condensate after being pressurized by the water pump (18) back to the boiler body (1).

8. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 1, characterized in that, The emission mechanism includes: The discharge pipe (21) is sealed and connected to the exhaust end on one side of the water exchange tank (4). The top of the discharge pipe (21) is equipped with an exhaust fan (22), which is configured to accelerate the discharge speed of non-condensable gases in the water exchange tank (4). A sealing plate (23) is provided, the size of which matches the internal channel of the discharge pipe (21). The sealing plate (23) is rotated inside the discharge pipe (21) by a drive assembly and is configured to open or close the internal channel of the discharge pipe (21) after rotation.

9. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 8, characterized in that, The driving component includes: The base frame (24) is fixedly connected to the outer wall of the bottom end of the discharge pipe (21); The second motor (25) is mounted at the bottom of the base frame (24). The output end of the second motor (25) is sealed through the bottom wall of the base frame (24) and the discharge pipe (21) and is fixedly connected to the rotation center of the sealing plate (23). It is configured to drive the sealing plate (23) to rotate around its own axis.

10. The water circulation device for a natural gas steam boiler for cooked meat products according to claim 7, characterized in that, The bottom of the water exchange tank (4) is set in an inverted cone shape, and the bottom of the cone is connected to the return pipe (19), which can collect and store the condensed liquid water.

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