Steam generator with overheating prevention function

Abstract

The utility model discloses a steam generator with an anti-overheating function, which comprises a furnace body, the upper end of the interior of the furnace body is provided with a cavity protruding upwards, the lower part of the interior of the furnace body is provided with a shell, the bottom of the interior of the shell is connected with a transverse first heating element in an inserted mode, and the side part of the interior of the shell is connected with a vertical second heating element in an inserted mode. The first heating element and the second heating element are connected in parallel, and a temperature sensor is arranged above the shell in the furnace body; a lifting mechanism is arranged on the periphery of the furnace body and is in transmission connection with an annular heat dissipation mechanism, and the heat dissipation mechanism is driven by the lifting mechanism to ascend and descend along the periphery of the furnace body. And when the water temperature in the furnace body is too high, the heat dissipation mechanism is controlled to ascend and descend along the furnace body through the lifting mechanism, the furnace body is cooled through the heat dissipation mechanism, rapid heat dissipation is achieved, and the temperature is prevented from being too high.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam generator technical field, concretely is a steam generator with prevent overheating function. BACKGROUND

[0002] Steam generator, according to the classification of energy, can be divided into electric heating steam generator, gas / oil steam generator, biomass steam generator, waste heat recovery steam generator.Electric heating steam generator has the advantages of environmental protection, no pollution and being suitable for small applications.

[0003] However, the current electric heating steam generator has the following problems: (1) either set heating element in the bottom of furnace body, or set heating element in the sidewall of furnace body, resulting in small heating surface for water, leading to low heating efficiency; (2) when the temperature in the furnace body is too high, generally, the temperature is reduced by stopping the heating element from working, but the cooling speed of this method is slow, and it is difficult to achieve rapid cooling. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a steam generator with anti-overheating function to solve the problems mentioned in the above background art.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A steam generator with anti-overheating function, comprising a furnace body, a support table connected to the lower end of the furnace body, an upwardly protruding cavity provided at the upper end inside the furnace body, a liquid inlet pipe connected to one side of the furnace body, a gas outlet pipe connected to the top of the cavity, a shell with a concave cross section provided at the lower part inside the furnace body, a horizontal first heating element inserted into the bottom of the shell, a vertical second heating element inserted into the side of the shell, the first heating element and the second heating element being connected in parallel, and a temperature sensor provided above the shell in the furnace body; a lifting mechanism is provided around the furnace body and is drivingly connected to an annular heat dissipation mechanism through the lifting mechanism, and the heat dissipation mechanism is driven by the lifting mechanism to ascend and descend along the periphery of the furnace body; the heat dissipation mechanism comprises a ring-shaped cover, the ring-shaped cover is located around the furnace body, one end of the ring-shaped cover is provided with a threaded hole, the other end is provided with a sliding hole, the ring-shaped cover is drivingly connected to the lifting mechanism through the threaded hole and the sliding hole, a plurality of cavities are provided in the ring-shaped cover, a heat dissipation fan is installed in each cavity, and a grating plate is installed on the inner and outer walls of each cavity.

[0007] Preferably, the lifting mechanism comprises first connecting plates connected to the upper parts of both sides of the furnace body, second connecting plates connected to both sides of the support table, a lead screw rotatably connected to the opposite first connecting plates, a guide rod connected to the opposite second connecting plates, a motor installed on one of the first connecting plates, the motor being drivingly connected to the lead screw, the threaded hole on the ring-shaped cover being threadedly connected to the lead screw, and the sliding hole being slidingly connected to the guide rod.

[0008] The technical scheme has the advantages that the motor is controlled to work, the lead screw is driven to rotate, the ring-shaped cover is driven to ascend and descend along the guide rod in the rotating process of the lead screw, and the heat dissipation mechanism is caused to ascend and descend along the furnace body.

[0009] Preferably, a blowdown pipe is connected to the center of the bottom of the shell, the upper end of the blowdown pipe is communicated with the furnace body, the lower end of the blowdown pipe is led out of the bottom of the furnace body, a blowdown valve is installed at the led-out end, and the first heating element is located at the periphery of the blowdown pipe.

[0010] The technical scheme has the advantage that when there is much water scale in the furnace body, the blowdown valve can be opened to discharge the water scale in the furnace body.

[0011] Preferably, the first heating element and the second heating element are both electric heating tubes.

[0012] The technical scheme has the advantage that the shell is provided with an electric socket, the two ends of the electric heating tube are respectively plugged into the electric socket, and the electric socket is electrically connected with the controller through wires passing through the shell and the furnace body.

[0013] Preferably, a liquid inlet valve is installed on the liquid inlet pipe, an exhaust valve is installed on the gas outlet pipe, a control cabinet is arranged on one side of the support table, a controller is arranged in the control cabinet, and the first heating element, the second heating element, the temperature sensor, the motor, the heat dissipation fan, the liquid inlet valve, the exhaust valve and the blowdown valve are electrically connected with the controller.

[0014] The technical scheme has the advantage that the controller is provided with a control program for controlling the orderly work of the components. In addition, the liquid inlet valve can be opened by the controller to deliver water into the furnace body, and the exhaust valve can be opened by the controller to deliver the generated steam outward.

[0015] Preferably, a liquid level sensor is arranged at the upper portion of the furnace body and electrically connected with the controller.

[0016] The technical scheme has the advantage that the liquid level sensor senses the height of water in the furnace body, and the liquid inlet valve is closed when the water reaches a predetermined height to prevent the water height from being too high.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The first heating element is arranged at the bottom of the furnace body, and the second heating element is arranged at the side of the furnace body, so that the bottom and the periphery of water can be heated at the same time, the heating efficiency is improved, and the steam generation efficiency is improved.

[0019] When the water temperature in the furnace body is too high, the first heating element or the second heating element can be closed, only one set of heating elements is kept working, or all the heating elements are closed at the same time, and then the heat dissipation mechanism is controlled to ascend along the furnace body through the lifting mechanism, the furnace body is cooled through the heat dissipation mechanism, rapid heat dissipation is realized, and the temperature is prevented from being too high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a top view sectional view of the heat dissipation mechanism;

[0022] Figure 3 It is a block principle diagram of the utility model;

[0023] In the drawing: 1-furnace body, 2-supporting table, 3-cavity, 4-liquid inlet pipe, 5-gas outlet pipe, 6-housing, 7-first heating element, 8-second heating element, 9-temperature sensor, 10-ring cover, 11-screw hole, 12-sliding hole, 13-heat dissipation fan, 14-grating plate, 15-first connecting plate, 16-second connecting plate, 17-screw rod, 18-guide rod, 19-motor, 20-drain pipe, 21-drain valve, 22-liquid inlet valve, 23-gas outlet valve, 24-control cabinet, 25-liquid level sensor. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Embodiment 1

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 A steam generator with anti-overheating function, including furnace body 1, the lower end of furnace body 1 is connected with supporting table 2, the upper end inside furnace body 1 is equipped with the cavity 3 that protrudes upwards, one side on furnace body 1 is connected with liquid inlet pipe 4, the top of cavity 3 is connected with gas outlet pipe 5, liquid inlet valve 22 is installed on liquid inlet pipe 4, gas outlet valve 23 is installed on gas outlet pipe 5, water is added to furnace body through liquid inlet pipe, and the steam generated by heating water is sent out through gas outlet pipe.

[0027] The lower part of the furnace body 1 is provided with a shell 6 with a concave cross section, the bottom of the shell 6 is inserted with a transverse first heating element 7, the side of the shell 6 is inserted with a vertical second heating element 8, the first heating element 7 and the second heating element 8 are connected in parallel, the first heating element 7 and the second heating element 8 are both electric heating pipes, the upper part of the furnace body 1 located above the shell is provided with a temperature sensor 9 for sensing the temperature in the furnace body. The center of the bottom of the shell 6 is connected with a blowdown pipe 20, the upper end of the blowdown pipe 20 communicates with the furnace body 1, the lower end of the blowdown pipe 20 penetrates out of the bottom of the furnace body 1, and a blowdown valve 21 is installed at the penetrating end, and the first heating element 7 is located at the periphery of the blowdown pipe 20. When there is a large amount of water scale in the furnace body 1, the blowdown valve 21 can be opened to discharge the water scale in the furnace body 1.

[0028] The periphery of the furnace body 1 is provided with a lifting mechanism, and an annular heat dissipation mechanism is drivingly connected through the lifting mechanism, and the heat dissipation mechanism is driven by the lifting mechanism to ascend and descend along the periphery of the furnace body 1. Specifically, the heat dissipation mechanism comprises a ring-shaped cover 10 located at the periphery of the furnace body 1, one end of the ring-shaped cover 10 is provided with a threaded hole 11, the other end is provided with a sliding hole 12, the ring-shaped cover 10 is drivingly connected with the lifting mechanism through the threaded hole and the sliding hole, a plurality of cavities are arranged in the ring-shaped cover 10, a heat dissipation fan 13 is installed in each cavity, and a grating plate 14 is installed on the inner and outer walls of each cavity. The lifting mechanism comprises first connecting plates 15 connected to the upper parts of the two sides of the furnace body, second connecting plates 16 connected to the two sides of the support table, a lead screw 17 rotatably connected to the opposite two first connecting plates, a guide rod 18 connected to the opposite two second connecting plates, and a motor 19 installed on one of the first connecting plates, the motor 19 is drivingly connected with the lead screw 17, the threaded hole 11 of the ring-shaped cover 10 is threadedly connected with the lead screw 17, and the sliding hole 12 is slidingly connected with the guide rod 18. The motor 19 is controlled to work to drive the lead screw 17 to rotate, and the lead screw 17 drives the ring-shaped cover 10 to ascend and descend along the guide rod 18 during rotation, so that the heat dissipation mechanism ascends and descends along the furnace body 1.

[0029] One side of the support table 2 is provided with a control cabinet 24, and a controller is arranged in the control cabinet 24, the first heating element 7, the second heating element 8, the temperature sensor 9, the motor 19, the heat dissipation fan 13, the liquid inlet valve 22, the exhaust valve 23 and the blowdown valve 21 are electrically connected with the controller.

[0030] The working principle of the embodiment is as follows:

[0031] Water enters the furnace body 1 through the liquid inlet pipe 4, passes through the first heating element 7 at the bottom of the furnace body 1, and the second heating element 8 at the side of the furnace body 1, so that the bottom and the periphery of the water can be heated at the same time, thereby improving the heating efficiency and the steam generation efficiency. When the water temperature in the furnace body 1 is too high, the first heating element 7 or the second heating element 8 can be closed, only one set of heating elements is kept working, or all the heating elements can be closed at the same time, and then the ring-shaped cover 10 is controlled to ascend and descend along the furnace body 1 through the lifting mechanism, and the furnace body 1 is cooled by the cooling fan 13, so that rapid heat dissipation is realized and the temperature of the furnace body 1 is prevented from being too high.

[0032] In addition, a pressure gauge and a pressure relief valve need to be installed on the furnace body 1, the pressure gauge detects the pressure in the furnace body, and when the pressure is too high, the pressure relief valve is used to release the pressure. The pressure gauge and the pressure relief valve installed on the furnace body are prior art, and will not be described in detail in the embodiment.

[0033] Embodiment 2

[0034] On the basis of the embodiment 1, the upper part of the furnace body 1 is provided with a liquid level sensor 25, and the liquid level sensor 25 is electrically connected with the controller. The liquid level sensor 25 senses the height of the water in the furnace body 1, and when the water reaches a certain height, the liquid inlet valve 22 is closed to prevent the water from being too high.

[0035] It should be noted that the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0036] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A steam generator with overheat protection function, characterized in that: The utility model provides a kind of heating furnace, including furnace body (1), the lower end of furnace body (1) is connected with support platform (2), the upper end inside furnace body (1) is equipped with the cavity (3) that protrudes upwards, one side on furnace body (1) is connected with liquid inlet pipe (4), the top of cavity (3) is connected with gas outlet pipe (5), the lower portion in furnace body (1) is equipped with the shell (6) with concave section, the bottom in shell (6) is inserted with the first heating element (7) of transverse, the side in shell (6) is inserted with the second heating element (8) of vertical, the first heating element (7) and second heating element (8) are in parallel, temperature sensor (9) is equipped above the shell in furnace body (1). The periphery of the furnace body (1) is provided with a lifting mechanism, and the annular heat dissipation mechanism is drivingly connected to the lifting mechanism. The heat dissipation mechanism is driven by the lifting mechanism to ascend and descend along the periphery of the furnace body (1). The heat dissipation mechanism includes a ring cover (10) located at the periphery of the furnace body (1). One end of the ring cover (10) is provided with a threaded hole (11), and the other end is provided with a sliding hole (12). The ring cover (10) is drivingly connected to the lifting mechanism through the threaded hole and the sliding hole. The ring cover (10) is provided with a plurality of cavities. Each cavity is provided with a heat dissipation fan (13). The inner and outer walls of each cavity are provided with grating plates (14).

2. The steam generator with anti-overheating function according to claim 1, characterized in that: The lifting mechanism includes first connecting plates (15) connected to the upper sides of the furnace body, second connecting plates (16) connected to the sides of the support platform, lead screws (17) rotatably connected to the opposite first connecting plates, guide rods (18) connected to the opposite second connecting plates, and motors (19) mounted on one of the first connecting plates. The motor (19) is drivingly connected to the lead screw (17). The threaded hole (11) of the ring cover (10) is threadedly connected to the lead screw (17). The sliding hole (12) is slidingly connected to the guide rod (18).

3. The steam generator with anti-overheating function according to claim 2, characterized in that: A blowdown pipe (20) is connected to the center of the bottom of the shell (6). The upper end of the blowdown pipe (20) is in communication with the furnace body (1). The lower end of the blowdown pipe (20) penetrates the bottom of the furnace body (1) and is provided with a blowdown valve (21) at the penetrating end. The first heating element (7) is located outside the blowdown pipe (20).

4. The steam generator with anti-overheating function according to claim 3, characterized in that: The first heating element (7) and the second heating element (8) are both electric heating tubes.

5. The steam generator with anti-overheating function according to claim 4, characterized in that: A liquid inlet valve (22) is mounted on the liquid inlet pipe (4). An exhaust valve (23) is mounted on the gas outlet pipe (5). A control cabinet (24) is provided on one side of the support platform (2). The control cabinet (24) is provided with a controller. The first heating element (7), the second heating element (8), the temperature sensor (9), the motor (19), the heat dissipation fan (13), the liquid inlet valve (22), the exhaust valve (23), and the blowdown valve (21) are electrically connected to the controller.

6. The steam generator with anti-overheating function according to claim 5, characterized in that: A liquid level sensor (25) is provided on the upper portion of the furnace body (1). The liquid level sensor (25) is electrically connected to the controller.

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