Preheating type steam generator

Abstract

The utility model discloses a preheating type steam generator which comprises a steam generation box body, a water storage tank, a servo motor and a cleaning frame, a steam generation cavity is formed in the steam generation box body, and a plurality of heating pipes are arranged on the bottom face of the steam generation cavity at intervals. The center of the top surface of the steam generation box body is rotationally connected with a screw rod extending into the steam generation cavity; according to the preheating type steam generator, the first conveying water pump can convey water in the water storage tank into the concave conveying pipe, the bottom of the concave conveying pipe is located on the bottom face of the steam generation cavity, in this way, the heating pipe in the steam generation cavity can heat the concave conveying pipe while working, and the water storage tank can convey water into the concave conveying pipe to be preheated; preheated water can be input into the steam generation cavity through the second conveying water pump to be supplemented, the steam generation efficiency is improved, in addition, a servo motor can drive a screw to rotate, and the screw drives a cleaning frame to move downwards along the steam generation cavity to clean scale on the side wall of the steam generation cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of steam equipment, in particular to a preheating type steam generator. Background Art

[0002] A steam generator, also called a steam heat source machine, is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into steam. It can provide the necessary high-temperature steam for steam boxes, steam irons, and steam pressing machines, and is widely used in food factories, restaurants, and clothing factories. The existing steam generator heats the water in the water tank through a heater, and the generated steam is output through a steam pipe. The water is directly replenished into the water tank through a water pipe. However, the water output from the water tank has a low temperature and needs to be heated up in the water tank before steam can be generated, resulting in a gap period for steam generation, thereby reducing the efficiency of steam generation. In addition, after the steam generator is used for a long time, scale will form on the side wall of the water tank and cause the generated steam to be impure. Therefore, a new structure of the steam generator needs to be designed to solve the above problems. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a preheating type steam generator. The first delivery water pump can deliver the water in the water storage tank into the concave delivery pipe, and the bottom of the concave delivery pipe is located at the bottom surface of the steam generation cavity. In this way, while the heating pipes in the steam generation cavity are working, the concave delivery pipe can be heated. The water storage tank can deliver water into the concave delivery pipe for preheating, and the preheated water can be input into the steam generation cavity by the second delivery water pump to replenish water, improving the efficiency of steam generation. In addition, the servo motor can drive the screw to rotate, and the screw drives the cleaning frame to move downward along the steam generation cavity to clean the scale on the side wall of the steam generation cavity.

[0004] A preheating type steam generator includes a steam generation box body, a water storage tank, a servo motor, and a cleaning frame. A steam generation cavity is arranged inside the steam generation box body. A plurality of heating pipes are arranged at intervals on the bottom surface of the steam generation cavity. The center of the top surface of the steam generation box body is rotatably connected with a screw extending into the steam generation cavity. The servo motor is connected to the top end of the screw. The cleaning frame is accommodated in the steam generation cavity and is in threaded connection with the screw. A concave delivery pipe extending from the top surface of the steam generation cavity to the bottom surface of the steam generation cavity is arranged inside the steam generation box body. The water storage tank is arranged on the top surface of the steam generation box body. The water storage tank is connected to one end of the concave delivery pipe through a first delivery water pump, and the other end of the concave delivery pipe is communicated with the steam generation cavity through a second delivery water pump.

[0005] Preferably, an exhaust pipe communicated with the steam generation cavity is arranged on the left side of the steam generation box body, and an output pipe that can control opening and closing is arranged at the center of the bottom surface of the steam generation box body.

[0006] Preferably, a mounting seat is provided at the center of the top surface of the steam generating box body, the servo motor is fixed on the mounting seat, and the output end of the servo motor is connected to the top end of the screw rod.

[0007] Preferably, the cleaning frame includes a threaded seat and a cleaning frame body. The threaded seat is threadedly connected to the screw rod, and the threaded seat is connected to the cleaning frame body through a plurality of cross bars, and the plurality of cross bars are arranged in a cross shape.

[0008] Preferably, the height of the cleaning frame body is greater than the distance between the exhaust pipe and the top surface of the steam generating cavity, and a cleaning brush for scraping the side wall of the steam generating cavity is provided on the outer side of the bottom of the cleaning frame body.

[0009] Preferably, both ends of the concave-shaped conveying pipe pass through between two adjacent cross bars respectively, the bottom of the concave-shaped conveying pipe is located between two adjacent heating pipes, and the bottom of the concave-shaped conveying pipe is arranged parallel to the heating pipes.

[0010] Preferably, the water storage tank is connected to the first conveying water pump. One end of the concave-shaped conveying pipe extends out from the top surface of the steam generator and is communicated with the first conveying water pump. The other end of the concave-shaped conveying pipe is communicated with the second conveying water pump, and the second conveying water pump is communicated with the top surface of the steam generating cavity through a return pipe.

[0011] The beneficial effects of the present utility model are as follows: Through the mutual cooperation of the steam generating box body, the water storage tank, the servo motor and the cleaning frame, the first conveying water pump can convey the water in the water storage tank into the concave-shaped conveying pipe. The bottom of the concave-shaped conveying pipe is located at the bottom surface of the steam generating cavity. In this way, while the heating pipes in the steam generating cavity are working, the concave-shaped conveying pipe can be heated. The water storage tank can convey water into the concave-shaped conveying pipe for preheating. The preheated water can be input into the steam generating cavity by the second conveying water pump to supplement water, improving the efficiency of steam generation. In addition, the servo motor can drive the screw rod to rotate, and the screw rod drives the cleaning frame to move downward along the steam generating cavity to clean the scale on the side wall of the steam generating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG. Figure 1 is a front view structural diagram of the present utility model;

[0013] FIG. Figure 2 is a side view structural diagram of the present utility model;

[0014] FIG. Figure 3 is a top view of the present utility model;

[0015] FIG. Figure 4 is a top view of the cleaning frame in the present utility model.

[0016] In the figure: 1 steam generation box body, 2 water storage tank, 3 servo motor, 4 steam generation cavity, 5 heating pipe, 6 screw rod, 7 concave conveying pipe, 8 first conveying water pump, 9 second conveying water pump, 10 exhaust pipe, 11 output pipe, 12 threaded seat, 13 cleaning frame body, 14 cross bar, 15 cleaning brush, 16 return pipe. Detailed implementation manner

[0017] The following combines the accompanying drawings and specific embodiments to further describe the present invention, so as to more clearly understand the technical idea claimed by the present invention.

[0018] As Figures 1 to 4 shown, a preheating type steam generator includes a steam generation box body 1, a water storage tank 2, a servo motor 3 and a cleaning frame. A steam generation cavity 4 is arranged in the steam generation box body 1. A plurality of heating pipes 5 are arranged at intervals on the bottom surface of the steam generation cavity 4. The center of the top surface of the steam generation box body 1 is rotatably connected with a screw rod 6 extending into the steam generation cavity 4. The servo motor 3 is connected to the top end of the screw rod 6. The cleaning frame is accommodated in the steam generation cavity 4, and the cleaning frame is threadedly connected with the screw rod 6. A concave conveying pipe 7 extending from the top surface of the steam generation cavity 4 to the bottom surface of the steam generation cavity 4 is arranged in the steam generation box body 1. The water storage tank 2 is arranged on the top surface of the steam generation box body 1. The water storage tank 2 is connected to one end of the concave conveying pipe 7 through a first conveying water pump 8, and the other end of the concave conveying pipe 7 is communicated with the steam generation cavity 4 through a second conveying water pump 9.

[0019] The working principle of the preheating type steam generator of the present invention is realized by the mutual cooperation of the steam generation box body 1, the water storage tank 2, the servo motor 3 and the cleaning frame, as Figure 1 and 4As shown in the figure, the heating pipe 5 can be an electric heating pipe. The first delivery water pump 8 can first deliver the water in the water storage tank 2 into the concave delivery pipe 7, and the bottom of the concave delivery pipe 7 is located at the bottom surface of the steam generation chamber 4. At this time, the second delivery water pump 9 does not work. In this way, while the heating pipe 5 in the steam generation chamber 4 works, it can heat the concave delivery pipe 7. The heat of the concave delivery pipe 7 is transferred to the water, thereby preheating the water in the concave delivery pipe 7. When the steam generation chamber 4 needs to be replenished with water, the second delivery water pump 9 works and delivers the water in the concave delivery pipe 7 into the steam generation chamber 4 to supplement the water. In addition, the servo motor 3 drives the screw rod 6 to rotate, and the screw rod 6 can drive the cleaning frame to move downward along the steam generation chamber 4. During the movement of the cleaning frame, it can clean the water scale on the side wall of the steam generator. Compared with the traditional steam generator, this preheating type steam generator can preheat the water delivered by the water storage tank 2. The preheated water is delivered into the steam generation chamber 4 for use, which can improve the efficiency of steam generation. In addition, the servo motor 3 can drive the screw rod 6 to rotate, the screw rod 6 drives the cleaning frame to move downward along the steam generation chamber 4, and cleans the water scale on the side wall of the steam generation chamber 4 to ensure the quality of the generated steam.

[0020] Specifically, an exhaust pipe 10 communicating with the steam generation chamber 4 is provided on the left side of the steam generation box body 1, and a controllable output pipe 11 is provided at the center of the bottom surface of the steam generation box body 1. Among them, an installation seat is provided at the center of the top surface of the steam generation box body 1, the servo motor 3 is fixed on the installation seat, and the output end of the servo motor 3 is connected to the top end of the screw rod 6. Among them, the cleaning frame includes a threaded seat 12 and a cleaning frame body 13. The threaded seat 12 is threadedly connected to the screw rod 6, and the threaded seat 12 is connected to the cleaning frame body 13 through a plurality of cross bars 14, and the plurality of cross bars 14 are arranged in a cross shape, as Figures 1 to 4 shown, a limit baffle can be provided at the bottom end of the screw rod 6 to prevent the threaded seat 12 from falling off the screw rod 6. The steam generated in the steam generation chamber 4 is delivered to the required position along the exhaust pipe 10. When the steam generation chamber 4 needs to be cleaned, a small amount of water can be left in the steam generation chamber 4. The servo motor 3 drives the screw rod 6 to rotate, the threaded seat 12 moves downward along the screw rod 6, and the cleaning frame body 13 moves downward with the threaded seat 12. Among them, the height of the cleaning frame body 13 is greater than the distance between the exhaust pipe 10 and the top surface of the steam generation chamber 4. A cleaning brush 15 capable of scraping the side wall of the steam generation chamber 4 is provided on the outer side of the bottom of the cleaning frame body 13, as Figures 1 to 4 shown, the cleaning brush 15 on the cleaning frame body 13 scrapes off the water scale on the side wall of the steam generation chamber 4, and the scraped water scale will be mixed with the water left in the steam generation chamber 4. After the steam generation chamber 4 is cleaned, the delivery pipe is opened and the water mixed with the water scale is discharged. A control switch can be provided on the delivery pipe to control the opening and closing. When the steam generation chamber 4 is working, the output pipe 11 is in a normally closed state.

[0021] Further, both ends of the concave conveyor pipe 7 pass through between two adjacent cross bars 14 respectively. The bottom of the concave conveyor pipe 7 is located between two adjacent heating pipes 5, and the bottom of the concave conveyor pipe 7 is arranged parallel to the heating pipes 5. As Figures 1 to 4 shown, the bottom of the concave conveyor pipe 7 is located between two heating pipes 5. When the heating pipes 5 are working, it is convenient to preheat the moisture in the concave conveyor pipe 7. When the cleaning frame moves up and down, both ends of the concave conveyor pipe 7 pass through between the cross bars 14 to prevent the cleaning frame from colliding with the concave conveyor pipe 7.

[0022] Furthermore, the water storage tank 2 is connected to the first water pump 8. One end of the concave conveyor pipe 7 extends out from the top surface of the steam generator and is communicated with the first water pump 8. The other end of the concave conveyor pipe 7 is communicated with the second water pump 9, and the second water pump 9 is communicated with the top surface of the steam generating chamber 4 through a return pipe 16. As Figures 1 to 4 shown, two concave conveyor pipes 7 can be arranged in the steam generating chamber 4. Two water storage tanks 2, two first water pumps 8 and two second water pumps 9 can be arranged on the top surface of the steam generating box body. The two first water pumps 8 are arranged in a staggered manner, and the two second water pumps 9 are arranged in a staggered manner, which can increase the amount of preheated water to supplement water to the steam generating chamber 4. The first water pump 8 first conveys the water in the water storage tank 2 into the concave conveyor pipe 7. At this time, the second water pump 9 does not work. While the heating pipes 5 in the steam generating chamber 4 are working, the moisture in the concave conveyor pipe 7 is preheated. When the steam generating chamber 4 needs to be replenished with water, the second water pump 9 works and conveys the moisture in the concave conveyor pipe 7 into the return pipe 16. Finally, the return pipe 16 inputs the moisture from the top of the steam generating chamber 4, and the outlet of the return pipe 16 is arranged in a staggered manner with the cross bar 14 to prevent the cross bar 14 from blocking the outlet of the return pipe 16 and affecting the input of moisture.

[0023] The above are only specific embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A preheating steam generator, characterized in that: The invention comprises a steam generating box body, a water storage tank, a servo motor and a cleaning rack, wherein a steam generating chamber is arranged in the steam generating box body, a plurality of heating tubes are arranged at intervals on the bottom surface of the steam generating chamber, a screw rod extending into the steam generating chamber is rotatably connected to the center of the top surface of the steam generating box body, the servo motor is connected to the top end of the screw rod, the cleaning rack is accommodated in the steam generating chamber, and the cleaning rack is threadedly connected to the screw rod, a concave conveying pipe extending from the top surface of the steam generating chamber to the bottom surface of the steam generating chamber is arranged in the steam generating box body, the water storage tank is arranged on the top surface of the steam generating box body, the water storage tank is connected to one end of the concave conveying pipe through a first conveying water pump, and the other end of the concave conveying pipe is communicated with the steam generating chamber through a second conveying water pump.

2. A preheating steam generator according to claim 1, characterized in that: A steam exhaust pipe communicating with the steam generating chamber is arranged on the left side of the steam generating box, and an output pipe which can be controlled to open and close is arranged at the center of the bottom surface of the steam generating box.

3. A preheating steam generator according to claim 2, characterized in that: A mounting seat is arranged at the center of the top surface of the steam generating box body, the servo motor is fixed on the mounting seat, and the output end of the servo motor is connected to the top end of the screw rod.

4. A preheating steam generator according to claim 3, characterized in that: The cleaning frame comprises a threaded seat and a cleaning frame, wherein the threaded seat is threadedly connected to the screw rod, and the threaded seat is connected to the cleaning frame through a plurality of cross bars, and the plurality of cross bars are arranged in a cross shape.

5. A preheating steam generator according to claim 4, characterized in that: The height of the cleaning frame is greater than the distance between the exhaust pipe and the top surface of the steam generating chamber, and a cleaning brush capable of scraping the side wall of the steam generating chamber is arranged on the outer side of the bottom of the cleaning frame.

6. A preheating steam generator according to claim 5, characterized in that: The two ends of the concave conveying pipe pass through two adjacent cross bars respectively, the bottom of the concave conveying pipe is between two adjacent heating pipes, and the bottom of the concave conveying pipe is arranged parallel to the heating pipe.

7. A preheating steam generator according to claim 6, characterized in that: The water storage tank is connected to the first water delivery pump, one end of the concave delivery pipe extends from the top surface of the steam generator and is connected to the first water delivery pump, the other end of the concave delivery pipe is connected to the second water delivery pump, and the second water delivery pump is connected to the top surface of the steam generating chamber through a reflux pipe.

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