Steam heater waste heat recovery device

Abstract

The utility model provides a waste heat recovery device of a steam heater, and relates to the technical field of steam heaters. The waste heat recovery device of the steam heater comprises a heater shell, and a heating pipe is fixedly arranged in the heater shell. In consideration of the problem that waste heat of the steam heater is inconvenient to recycle, after an external power supply is connected and a heating plate is electrified, the heating temperature is controlled through a temperature controller, a water body in a heating box is heated, steam is conveyed into a heating pipe through a steam conveying pipe, cold water entering a cold water inlet pipe is heated, and the waste heat of the steam heater is recycled. Steam is conveyed into the heat exchange box through the steam backflow pipe, the flow speed of the steam is delayed through the baffling pieces, the residence time of the steam in the heat exchange pipe is prolonged, water in the heating box is preheated, the water temperature is increased, the effect of recycling waste heat is achieved, heat preservation is conducted on the heat exchange box and the heating box through the rock wool plate and the polyurethane plate, heat loss is reduced, and the energy consumption is reduced. And more energy-saving and environment-friendly effects are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steam heaters, in particular to a steam heater waste heat recovery device. BACKGROUND

[0002] The steam heater adopts a steel-aluminum composite finned tube as a main heat exchanger element. The steam heater is a device widely applied in air separation equipment, petroleum chemical industry, food industry and metallurgical industry, and mainly utilizes heat released by steam to heat process gas. At present, commonly used steam heaters in the industry mainly have two types: a light tube type and a laminated type. The steam heaters of the two types are relatively stable in performance and are widely applied.

[0003] The conventional steam heater is inconvenient for recycling waste heat of the steam heater. After heating a medium, circulating steam still retains certain heat, heat energy is wasted, the steam heater consumes more energy, costs are increased and the steam heater is not environmentally friendly. CONTENT OF THE INVENTION

[0004] The application provides a steam heater waste heat recovery device to solve the problem that waste heat of a steam heater cannot be recycled, circulating steam retains certain heat after heating a medium, heat energy is wasted, the steam heater consumes more energy, costs are increased and the steam heater is not environmentally friendly.

[0005] The application provides a steam heater waste heat recovery device, which comprises a heater shell, a heating pipe is fixedly arranged in the heater shell, a steam return pipe is communicated with the bottom of the heating pipe, a baffle is fixedly arranged on the inner wall of the steam return pipe, a gas conveying pipe is communicated with one end of the steam return pipe, a heat exchange pipe is communicated with one end of the gas conveying pipe, a heat exchange box is fixedly arranged on the outer surface of the heat exchange pipe, a heating box is fixedly arranged on the top surface of the heat exchange box, rock wool boards are fixedly sleeved on the outer surfaces of the heat exchange box and the heating box, and polyurethane boards are fixedly sleeved on the surfaces of the rock wool boards.

[0006] Preferably, a hot water outlet pipe is arranged through one end of the top surface of the heating pipe, and a cold water inlet pipe is arranged through the bottom of the outer surface of the heater shell, and the cold water inlet pipe is used for inputting cold water.

[0007] Preferably, a box cover is clamped on the top surface of the heating box, a steam conveying pipe is communicated with one side of the top surface of the box cover, one end of the steam conveying pipe is communicated with the heating pipe, and the steam conveying pipe is used for conveying steam into the heating pipe.

[0008] Preferably, the two sides of the heating box inner wall are provided with cavities, the inside of the cavity is fixedly provided with a heating plate, one side of the heating plate is electrically connected with a temperature controller, the temperature controller is fixedly installed on one side of the top surface of the box cover, and the temperature controller is used for controlling the heating temperature of the heating plate.

[0009] Preferably, the two sides of the top surface of the box cover are fixedly provided with handles, and the surface of the handle is sleeved with an anti-skid sleeve, and the handle facilitates opening and closing the box cover.

[0010] Preferably, one side of the heat exchange pipe is communicated with a steam discharge pipe, and the steam discharge pipe penetrates the heat exchange box and communicates with the outside, and the steam discharge pipe facilitates discharging steam.

[0011] Preferably, the two sides of the outer surface of the heating box are fixedly provided with mounting strips, and the surface of the mounting strip is movably provided with fixing nails, and the fixing nails are used for fixing the mounting strip.

[0012] Beneficial effects:

[0013] In view of the problem that the waste heat of the steam heater is not convenient to recycle, the external power source is connected, the heating plate is powered on, the heating temperature is controlled through the temperature controller, the water in the heating box is heated, the steam is transported into the heating pipe through the steam conveying pipe, the cold water entering the pipe is heated, the steam is transported into the heat exchange box through the steam return pipe, the baffle delays the steam flow rate, prolongs the residence time of the steam in the heat exchange pipe, preheats the water in the heating box, and improves the water temperature, so that the waste heat is recycled, the rock wool board and the polyurethane board are used for heat preservation of the heat exchange box and the heating box, heat loss is reduced, and energy saving and environmental protection are achieved.

[0014] The above description is only a summary of the technical scheme of the embodiment of the application, in order to more clearly understand the technical means of the embodiment of the application, the embodiment of the application can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the embodiment of the application more obvious and easy to understand, the following will specifically describe the embodiment of the application. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiment of the application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0016] Figure 1 It is a whole structure schematic view of the steam heater waste heat recovery device.

[0017] Figure 2The utility model relates to a heating tank structure schematic diagram of a steam heater waste heat recovery device.

[0018] Figure 3 The utility model relates to a heat exchange pipe structure schematic diagram of a steam heater waste heat recovery device.

[0019] Figure 4 The utility model relates to a steam return pipe and baffle structure schematic diagram of a steam heater waste heat recovery device.

[0020] Figure 5 The utility model relates to a heating pipe structure schematic diagram of a steam heater waste heat recovery device.

[0021] Mark explanation:

[0022] 1, heater shell;2, heating pipe;3, hot water outlet pipe;4, cold water inlet pipe;5, tank cover;6, steam delivery pipe;7, heating plate;8, temperature controller;9, handle;10, steam return pipe;11, baffle;12, gas delivery pipe;13, heat exchange pipe;14, heat exchange tank;15, heating tank;16, rock wool board;17, polyurethane board;18, steam exhaust pipe;19, mounting strip. Specific implementation

[0023] In order to make the purpose, technical scheme and advantage of the embodiments of the application more clear, the technical scheme in the embodiments of the application will be described clearly and completely below with the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the application.

[0024] 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 belongs; the terms used herein in the specification are only for the purpose of describing specific embodiments and are not intended to limit the application; the terms "include" and "have" and any variations thereof in the specification and claims of the application and the drawing description are intended to cover non-exclusive inclusion.

[0025] In this paper, "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the application. The phrase "embodiment" appears in various places in the specification does not necessarily refer to the same embodiment, nor is it independent or alternative to other embodiments. Those skilled in the art understand explicitly and implicitly that the embodiments described herein can be combined with other embodiments.

[0026] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. For example, in the description of the present application, the positional relationship or position indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the positional relationship or position shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by fixing member, for example, fixed connection by screw, bolt or other fixing member; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings.

[0029] The utility model provides a kind of steam heater waste heat recovery device as Figures 1-5 As shown in a kind of steam heater waste heat recovery device, including heater shell 1, the inside of heater shell 1 is fixedly provided with heating pipe 2, the bottom of heating pipe 2 is communicated with steam return pipe 10, the inner wall of steam return pipe 10 is fixedly provided with baffle 11, one end of steam return pipe 10 is communicated with gas delivery pipe 12, one end of gas delivery pipe 12 is communicated with heat exchange pipe 13, the outer surface of heat exchange pipe 13 is fixedly provided with heat exchange box 14, the top surface of heat exchange box 14 is fixedly provided with heating box 15, the outer surface of heat exchange box 14 and heating box 15 is all fixedly sleeved with rock wool board 16, the surface of rock wool board 16 is fixedly sleeved with polyurethane board 17.

[0030] The external power supply is connected, the heating plate 7 is powered on, the heating temperature is controlled through the temperature controller 8, the water in the heating box 15 is heated, the steam is transported into the heating pipe 2 through the steam conveying pipe 6, the cold water entering the pipe 4 is heated, and the steam is transported into the heat exchange box 14 through the steam return pipe 10. The baffle 11 delays the steam flow rate and prolongs the residence time of the steam in the heat exchange pipe 13, preheats the water in the heating box 15, increases the water temperature, and achieves the effect of recycling the waste heat. The rock wool board 16 and the polyurethane board 17 insulate the heat exchange box 14 and the heating box 15, reduce heat loss, and are more energy-saving and environmentally friendly.

[0031] An end of the top surface of the heating pipe 2 is provided with a hot water outlet pipe 3, and the bottom surface of the outer surface of the heater shell 1 is provided with a cold water inlet pipe 4.

[0032] The hot water outlet pipe 3 is used for discharging heated hot water, and the cold water inlet pipe 4 is used for inputting cold water.

[0033] The top surface of the heating box 15 is clamped with a box cover 5, one side of the top surface of the box cover 5 is communicated with a steam conveying pipe 6, and one end of the steam conveying pipe 6 is communicated with the heating pipe 2.

[0034] The box cover 5 is used for closing the heating box 15, and the steam conveying pipe 6 is used for conveying the generated steam into the heating pipe 2.

[0035] The two sides of the inner wall of the heating box 15 are provided with cavities, the cavities are fixedly provided with heating plates 7, one side of the heating plate 7 is electrically connected with a temperature controller 8, and the temperature controller 8 is fixedly installed on one side of the top surface of the box cover 5.

[0036] The heating plate 7 is powered on, the heating temperature is controlled through the temperature controller 8, and the water in the heating box 15 is heated, so that the steam is conveyed into the heating pipe 2 through the steam conveying pipe 6.

[0037] The two sides of the top surface of the box cover 5 are fixedly provided with handles 9, and the surface of the handle 9 is sleeved with a non-slip sleeve.

[0038] The handle 9 is used for opening and closing the box cover 5.

[0039] One side of the heat exchange pipe 13 is communicated with a steam discharge pipe 18, and the steam discharge pipe 18 penetrates the heat exchange box 14 and is communicated with the outside.

[0040] The steam discharge pipe 18 is used for discharging the heat-exchanged steam.

[0041] The two sides of the outer surface of the heating box 15 are fixedly provided with mounting strips 19, and the surface of the mounting strip 19 is movably provided with fixing nails.

[0042] The mounting strip 19 is used for fixing the heating box 15.

[0043] Working principle: when the steam heater waste heat recovery device is used, the external power supply is connected, the heating plate 7 is powered on, the heating temperature is controlled by the temperature controller 8, the water in the heating box 15 is heated, the steam is transported to the heating pipe 2 through the steam conveying pipe 6, and the cold water entering the cold water inlet pipe 4 is heated.

[0044] The steam is further transported to the heat exchange box 14 through the steam return pipe 10, the baffle 11 delays the steam flow rate, prolongs the residence time of the steam in the heat exchange pipe 13, preheats the water in the heating box 15, increases the water temperature, recycles the waste heat, the rock wool board 16 and the polyurethane board 17 insulate the heat exchange box 14 and the heating box 15, reduce the heat loss, and are more energy-saving and environmentally friendly.

[0045] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A waste heat recovery device for a steam heater, comprising a heater housing (1), characterized in that: A heating tube (2) is fixedly installed inside the heater housing (1). The bottom of the heating tube (2) is connected to a steam return pipe (10). A baffle plate (11) is fixedly installed on the inner wall of the steam return pipe (10). One end of the steam return pipe (10) is connected to a gas supply pipe (12). One end of the gas supply pipe (12) is connected to a heat exchange tube (13). A heat exchange box (14) is fixedly installed on the outer surface of the heat exchange tube (13). A heating box (15) is fixedly installed on the top surface of the heat exchange box (14). Rock wool boards (16) are fixedly sleeved on the outer surfaces of both the heat exchange box (14) and the heating box (15). A polyurethane board (17) is fixedly sleeved on the surface of the rock wool board (16).

2. The waste heat recovery device for a steam heater according to claim 1, characterized in that: A hot water outlet pipe (3) is provided through one end of the top surface of the heating tube (2), and a cold water inlet pipe (4) is provided through the bottom of the outer surface of the heater housing (1).

3. The waste heat recovery device for a steam heater according to claim 1, characterized in that: The top surface of the heating box (15) is fitted with a box cover (5), and one side of the top surface of the box cover (5) is connected to a steam conveying pipe (6). One end of the steam conveying pipe (6) is connected to the heating pipe (2).

4. The waste heat recovery device for a steam heater according to claim 3, characterized in that: Both sides of the inner wall of the heating box (15) are provided with cavities. A heating plate (7) is fixedly installed inside the cavity. A temperature controller (8) is electrically connected to one side of the heating plate (7). The temperature controller (8) is fixedly installed on one side of the top surface of the box cover (5).

5. A waste heat recovery device for a steam heater according to claim 3, characterized in that: Handles (9) are fixedly installed on both sides of the top surface of the box cover (5), and anti-slip sleeves are fitted on the surface of the handles (9).

6. The waste heat recovery device for a steam heater according to claim 1, characterized in that: One side of the heat exchange tube (13) is connected to a steam discharge pipe (18), which passes through the heat exchange box (14) and is connected to the outside.

7. A waste heat recovery device for a steam heater according to claim 1, characterized in that: The heating box (15) has mounting strips (19) fixedly installed on both sides of its outer surface, and fixing nails are movably installed on the surface of the mounting strips (19).

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