Finned tube type electric heating steam generator

Abstract

The utility model discloses a finned tube type electric heating steam generator which comprises a shell, a fuel gas heating cavity is formed in the shell, and a fuel gas burner is fixedly installed on the inner wall face of the fuel gas heating cavity. According to the gas stove, the spiral pipe disc and the gas burner are installed in the gas heating cavity, flames generated by working of the gas burner are promoted to directly burn and heat the spiral pipe disc, and the heat exchange area is increased through the heat conduction fins on the surface of the spiral pipe disc; according to the gas heating and electric heating device, gas heating and electric heating are combined, the steam generation efficiency is improved, a detachable sealing plate is arranged on the surface of a shell corresponding to a gas heating cavity, and an upper connecting sleeve and a lower connecting sleeve are in threaded connection with the joint of a steam eduction pipe, a water guide pipe and a spiral pipe disc, so that the steam eduction pipe, the water guide pipe and the spiral pipe disc are in threaded connection; and the upper connecting sleeve and the lower connecting sleeve are respectively provided with a limiting ring, a threaded cover, a threaded nozzle and a sealing ring, so that the spiral pipe disc can be conveniently and quickly assembled and disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam generator technical field especially relates to finned tube type electric heating steam generator. BACKGROUND

[0002] Steam generator also called steam heat source machine (commonly known as boiler) is the mechanical equipment that uses the heat energy of fuel or other energy to heat water into hot water or steam. The original meaning of the pot is the water container heated on the fire, and the furnace is the place of burning fuel, and the boiler includes the pot and the furnace two parts, wherein, finned tube type steam generator is favored by people because of high thermal efficiency.

[0003] At present, in the finned tube type steam generator on the market, the steam pipe of part finned tube type steam generator is usually fixed, is inconvenient to disassemble, is not favorable to subsequent maintenance and repair, and because the traditional finned tube type steam generator adopts single heating mode, water entering the finned tube disc cannot quickly generate steam, and there is the problem of low steam generation rate.

[0004] Therefore, the finned tube type electric heating steam generator is proposed, which has the advantages of composite heating and easy disassembly and maintenance of the tube disc, thereby solving the problems in the above background technology. UTILITY MODEL CONTENTS

[0005] The utility model discloses a finned tube type electric heating steam generator to solve the shortcomings in the prior art.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a finned tube type electric heating steam generator, including the casing, the inside of casing is provided with gas heating cavity, and the inner wall surface of gas heating cavity is fixedly installed with gas burner, the side of casing is provided with the gas pipe connected with gas burner, the inner wall surface of casing is fixed with water tank, and the upper part side of water tank is communicated with water supply pipe, and the bottom of water tank is communicated with water pump through the pipeline, the water outlet end of water pump is communicated with the water guide pipe, and the surface of water guide pipe is installed with electric heating cylinder, and one end of water guide pipe extends to the inside of gas heating cavity, the top of casing is installed with steam outlet pipe, and the lower end of steam outlet pipe extends to the inside of gas heating cavity, the spiral pipe disc is communicated between steam outlet pipe and water guide pipe, and the upper connecting sleeve is screw mounted at the steam outlet pipe and spiral pipe disc communication, and the lower connecting sleeve is screw mounted at the water guide pipe and spiral pipe disc communication, the surface of casing is provided with the opening through gas heating cavity, and the inboard of opening is fixed with sealing plate through screw.

[0007] As a further description of the above technical solution: the upper and lower connecting sleeves are provided with threaded nozzles at both ends, the connecting ends between the steam outlet pipe, the water guide pipe and the spiral pipe disc are provided with limiting rings, and the surfaces of the connecting ends of the steam outlet pipe, the water guide pipe and the spiral pipe disc are sleeved with threaded covers, the threaded covers are in threaded connection with the threaded nozzles, and the threaded covers are provided with sealing rings in abutment with the limiting rings.

[0008] As a further description of the above technical solution: the surface of the spiral pipe disc is welded with a plurality of heat-conducting fins, and the spiral pipe disc has a spiral structure as a whole.

[0009] As a further description of the above technical solution: the top surface of the shell is provided with a smoke exhaust pipe in communication with the gas heating cavity, and the bottom of the shell is provided with a plurality of bottom wheels.

[0010] As a further description of the above technical solution: the inside of the electric heating cylinder is fixed with a resistance wire, and the outer surface of the electric heating cylinder is provided with a wiring part connected with the positive and negative electrodes of the resistance wire.

[0011] As a further description of the above technical solution: the outer surface of the shell is fixed with a control panel, and the output ends of the control panel are electrically connected with the water pump, the gas burner and the resistance wire.

[0012] The utility model has the advantages of the following:

[0013] In the utility model, the spiral pipe disc and the gas burner are installed in the gas heating cavity, so that the flame generated by the working gas burner directly burns and heats the spiral pipe disc, the heat exchange area is increased by the heat-conducting fins on the surface of the spiral pipe disc, the resistance wire in the electric heating cylinder preheats the continuously pumped water, the gas heating and the electric heating are combined, the steam generation efficiency is improved, the detachable sealing plate is arranged on the surface of the shell corresponding to the gas heating cavity, the upper and lower connecting sleeves are in threaded connection at the connecting positions of the steam outlet pipe, the water guide pipe and the spiral pipe disc, the limiting rings, the threaded covers, the threaded nozzles and the sealing rings are arranged on the upper and lower connecting sleeves, the spiral pipe disc is easily and quickly assembled and disassembled, and the spiral pipe disc is conveniently replaced and maintained. ACCURACY

[0014] Figure 1 It is an external structure diagram of the finned tube type electric heating steam generator;

[0015] Figure 2 It is an internal structure diagram of the finned tube type electric heating steam generator;

[0016] Figure 3 It is a structure diagram of the spiral pipe disc;

[0017] Figure 4is a top view of the spiral tube disc.

[0018] Legend:

[0019] 1, housing; 2, control panel; 3, sealing plate; 4, water supply pipe; 5, steam outlet pipe; 6, smoke exhaust pipe; 7, bottom wheel; 8, water tank; 9, water pump; 10, gas heating cavity; 11, water guide pipe; 12, spiral tube disc; 13, gas burner; 14, gas pipe; 15, electric heating cylinder; 16, lower connecting sleeve; 17, upper connecting sleeve; 18, resistance wire; 19, limiting ring; 20, threaded cover; 21, threaded nozzle; 22, sealing ring; 23, heat-conducting fin. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] According to the embodiments of the present application, a finned tube type electric heating steam generator is provided.

[0022] The present application will be further described in conjunction with the drawings and specific embodiments, such as Figures 1-4As shown, according to the finned tube type electric heating steam generator of the utility model embodiment, the inside of the shell 1 is provided with a gas heating cavity 10, the inner wall surface of the gas heating cavity 10 is fixedly installed with a gas burner 13, the side surface of the shell 1 is provided with a gas pipe 14 connected with the gas burner 13, the inner wall surface of the shell 1 is fixedly installed with a water tank 8, the upper side surface of the water tank 8 is communicated with a water supply pipe 4, the bottom of the water tank 8 is communicated with a water pump 9 through a pipeline, the water outlet end of the water pump 9 is communicated with a water guide pipe 11, the surface of the water guide pipe 11 is installed with an electric heating cylinder 15, one end of the water guide pipe 11 extends to the inside of the gas heating cavity 10, the top of the shell 1 is installed with a steam guide pipe 5, the lower end of the steam guide pipe 5 extends to the inside of the gas heating cavity 10, the steam guide pipe 5 and the water guide pipe 11 are communicated with a spiral pipe disc 12, the communication position between the spiral pipe disc 12 and the steam guide pipe 5 is threadedly installed with an upper connecting sleeve 17, the communication position between the spiral pipe disc 12 and the water guide pipe 11 is threadedly installed with a lower connecting sleeve 16, the surface of the shell 1 is provided with an opening penetrating through the gas heating cavity 10, the inside of the opening is fixedly installed with a sealing plate 3 through screws, the contents not described in detail in the specification belong to the prior art known to the person skilled in the art with respect to the shell 1 (i.e. the steam generator), wherein the sealing plate 3 and the opening of the shell 1 are further filled with refractory material, which is beneficial to increase the heat resistance effect and maintain the sealing property, the water tank 8 is provided with a liquid level meter, and an electromagnetic valve is installed on the surface of the water supply pipe 4, in combination with the following control panel 2, automatic water pumping can be easily performed when the liquid level is not up to the standard in the control panel 2, dry burning is prevented, and the specific process is the known prior art, which will not be described in detail;

[0023] In one embodiment, the two ends of the upper connecting sleeve 17 and the lower connecting sleeve 16 are provided with threaded mouths 21, the communication ends between the steam guide pipe 5, the water guide pipe 11 and the spiral pipe disc 12 are provided with limiting rings 19, and the surface of the communication ends of the steam guide pipe 5, the water guide pipe 11 and the spiral pipe disc 12 is sleeved with threaded covers 20, the threaded covers 20 are threadedly connected with the threaded mouths 21, and the threaded covers 20 are internally provided with sealing rings 22 abutting against the limiting rings 19.

[0024] In one embodiment, the surface of the spiral pipe disc 12 is welded with a plurality of heat-conducting fins 23, and the spiral pipe disc 12 has a spiral structure as a whole.

[0025] In one embodiment, the top surface of the shell 1 is provided with a smoke exhaust pipe 6 communicated with the gas heating cavity 10, and the bottom of the shell 1 is installed with a plurality of bottom wheels 7.

[0026] In one embodiment, the inside of the electric heating cylinder 15 is fixedly installed with an electric resistance wire 18, and the outer surface of the electric heating cylinder 15 is provided with a wiring part connected with the positive and negative poles of the electric resistance wire 18.

[0027] In one embodiment, the outer surface of the shell 1 is fixed with the control panel 2, and the output of the control panel 2 is electrically connected with the water pump 9, the gas burner 13 and the resistance wire 18 respectively, and the water pump 9 is a variable frequency pump, so as to control the water flow in the spiral pipe disc 12 through the control panel 2. The control mode of the utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the provision of the power supply are well known in the art. The utility model is mainly used for protecting mechanical devices, so the control mode and the wiring arrangement will not be explained in detail.

[0028] Working principle:

[0029] In use, first, water is injected into the water tank 8 in the shell 1 through the water inlet pipe. When the water tank 8 is full, the water pump 9 is started to work, so that the water pump 9 pumps the water in the water tank 8 into the spiral pipe disc 12 through the water guide pipe 11. At this time, the gas burner 13 in the gas heating cavity 10 is started to work, so that the flame generated by the working gas burner 13 directly burns and heats the spiral pipe disc 12. The heat exchange area is increased by the heat conduction fins 23 on the surface of the spiral pipe disc 12. Before that, the resistance wire 18 built in the electric heating cylinder 15 preheats the continuously pumped water, so that the gas heating and electric heating are combined, the steam is discharged from the steam outlet pipe 5, and the steam generation efficiency is improved. When maintenance is needed, the sealing plate 3 fixed on the surface of the shell 1 by screws is unlocked, so that the opening on the surface of the shell 1 through the gas heating cavity 10 is exposed, then the threaded cover 20 at both ends of the upper connecting sleeve 17 and the lower connecting sleeve 16 is rotated, so that the threaded cover 20 is disconnected from the threaded mouth 21, and the sealing of the sealing ring 22 is disabled. The threaded connection is made at the connection between the steam outlet pipe 5, the water guide pipe 11 and the spiral pipe disc 12, then the upper connecting sleeve 17 and the lower connecting sleeve 16 are removed, so that the two ends of the spiral pipe disc 12 are disconnected from the steam outlet pipe 5 and the water guide pipe 11 respectively, the spiral pipe disc 12 is quickly assembled and disassembled, and the gas burner 13 and the spiral pipe disc 12 are replaced or maintained.

[0030] Finally, it should be pointed out that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, as long as it is within the spirit and principles of the utility model. Any modification, equivalent replacement, improvement, etc. shall be included in the protection scope of the utility model.

Claims

1. Finned tube electrically heated steam generator comprising a shell (1), characterized in that: The inside of the shell (1) is provided with a gas heating cavity (10), and the inner wall of the gas heating cavity (10) is fixedly provided with a gas burner (13); the side of the shell (1) is provided with a gas pipe (14) connected with the gas burner (13); the inner wall of the shell (1) is fixedly provided with a water tank (8), and the upper side of the water tank (8) is communicated with a water supply pipe (4); the bottom of the water tank (8) is communicated with a water pump (9) through a pipeline; the water outlet end of the water pump (9) is communicated with a water guide pipe (11), and the surface of the water guide pipe (11) is fixedly provided with an electric heating cylinder (15); one end of the water guide pipe (11) extends to the inside of the gas heating cavity (10); the top of the shell (1) is provided with a steam guide pipe (5), and the lower end of the steam guide pipe (5) extends to the inside of the gas heating cavity (10); the steam guide pipe (5) and the water guide pipe (11) are communicated with a spiral pipe disc (12); the communication part between the spiral pipe disc (12) and the steam guide pipe (5) is threadedly provided with an upper connecting sleeve (17); the communication part between the spiral pipe disc (12) and the water guide pipe (11) is threadedly provided with a lower connecting sleeve (16); the surface of the shell (1) is provided with an opening penetrating through the gas heating cavity (10), and the inside of the opening is fixedly provided with a sealing plate (3) through screws.

2. The finned tube electrically heated steam generator of claim 1, wherein: The two ends of the upper connecting sleeve (17) and the lower connecting sleeve (16) are provided with threaded nozzles (21); the communication ends between the steam guide pipe (5), the water guide pipe (11) and the spiral pipe disc (12) are provided with limiting rings (19); the communication end surfaces of the steam guide pipe (5), the water guide pipe (11) and the spiral pipe disc (12) are sleeved with threaded covers (20); the threaded cover (20) is threadedly connected with the threaded nozzle (21); and the threaded cover (20) is internally provided with a sealing ring (22) abutting against the limiting ring (19).

3. The finned tube electrically heated steam generator of claim 1, wherein: The surface of the spiral pipe disc (12) is welded with a plurality of heat-conducting fins (23), and the spiral pipe disc (12) has a spiral structure as a whole.

4. The finned tube electrically heated steam generator of claim 1, wherein: The top surface of the shell (1) is provided with a smoke exhaust pipe (6) communicated with the gas heating cavity (10); and the bottom of the shell (1) is provided with a plurality of bottom wheels (7).

5. The finned tube electrically heated steam generator of claim 1, wherein: The inside of the electric heating cylinder (15) is fixedly provided with a resistance wire (18); and the outer surface of the electric heating cylinder (15) is provided with a wiring part connected with the positive and negative electrodes of the resistance wire (18).

6. The finned tube electrically heated steam generator of claim 5, wherein: The outer surface of the shell (1) is fixedly provided with a control panel (2), and the output end of the control panel (2) is electrically connected with the water pump (9), the gas burner (13) and the resistance wire (18).

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