CN210951249U - Steam generator - Google Patents

Abstract

The utility model provides a steam generator, it includes a body, a combustor, a feed-tank, a feed pump, the feed-tank passes through the feed pump and carries the makeup water to the body, the body include a combustion chamber, a reservoir chamber and with a steam storage room that the reservoir chamber intercommunication set up, the reservoir chamber encircles the combustion chamber sets up, the steam storage room is located the combustion chamber top, the steam storage room with the reservoir chamber intercommunication sets up, the combustion chamber is first return passage, the reservoir chamber periphery is encircleed and is provided with second return passage, third return passage and fourth return passage, fourth return passage periphery is provided with fifth return passage.

Description

Steam generator

Technical Field

The utility model relates to a steam generator field especially relates to a steam generator.

Background

Steam generator is the equipment that becomes high temperature steam through the heat energy that fuel burning produced, current steam generator mainly has biomass fuel steam generator, electric heat steam generator, oil, gas steam generator, electric heat steam generator can realize the zero release pollution-free, but the working costs is high, the steam generator working costs who uses oil or gas as fuel is moderate, but present oil, gas steam generator's thermal efficiency is lower, the heat by a wide margin is taken away to exhaust flue gas, in order to further reduce the working costs, need the raising the thermal efficiency, the better heat energy that collects the fuel and produce, steam is produced more fast, therefore, need improve prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a steam generator, this steam generator produce gas fast, and the thermal efficiency is high.

The utility model provides a steam generator, it includes a body, a combustor, a water-feeding tank, a water-feeding pump, the water-feeding tank carries the makeup water to the body through the water-feeding pump, the body include a combustion chamber, a reservoir chamber and with a steam storage room that the reservoir chamber communicates the setting, the reservoir chamber encircles the combustion chamber setting, the steam storage room is located above the combustion chamber, the steam storage room with the reservoir chamber communicates the setting, its characterized in that, it includes first return path, the combustion chamber is as first return path, the flue gas that produces in the combustion chamber erodees the inner wall of reservoir chamber accomplishes heat convection, cooperate the heat radiation that releases in the combustion chamber to carry out heat transfer once to the retaining water in the reservoir chamber; the second return passage is arranged at the periphery of the water storage chamber and is communicated with the first return passage through a smoke outlet hole which is arranged at the lower part of the combustion chamber, the smoke enters the second return passage from the first return passage through the smoke outlet hole and flushes the outer wall of the water storage chamber in the second return passage to finish convective heat exchange, and secondary heat exchange is carried out on the stored water in the water storage chamber;

the third return passage and the second return passage are arranged on the periphery of the water storage chamber side by side, a first passage baffle is arranged between the third return passage and the second return passage, the third return passage and the second return passage are communicated through a first smoke evacuation hole arranged at the upper part of the first passage baffle, the smoke enters the third return passage from the second return passage through the first smoke evacuation hole, the third return passage flushes the outer wall of the water storage chamber to complete convective heat exchange, and the stored water in the water storage chamber is subjected to heat exchange for three times; the fourth return channel and the third return channel are arranged on the periphery of the water storage chamber side by side, a second channel baffle is arranged between the fourth return channel and the third return channel, the fourth return channel and the third return channel are communicated through a second smoke evacuation hole arranged at the lower part of the second channel baffle, the smoke enters the fourth return channel from the third return channel through the second smoke evacuation hole, the outer wall of the water storage chamber is flushed by the fourth return channel to complete convective heat exchange, and the stored water in the water storage chamber is subjected to four times of heat exchange; and the fifth return passage is arranged at the periphery of the fourth return passage, the fifth return passage is communicated with the fourth return passage through a third smoke evacuation hole arranged at the upper part of the fourth return passage, the fifth return passage is also communicated with an external environment through a chimney, a group of water conveying pipes are arranged in the fifth return passage, one ends of the group of water conveying pipes are connected with the water feed pump, the other ends of the group of water conveying pipes are connected with the water storage chamber, the smoke enters the fifth return passage from the fourth return passage through the third smoke evacuation hole, the water conveying pipes are flushed in the fifth return passage to finish convective heat exchange, and the supply water in the water conveying pipes is preheated.

Preferably, the water delivery pipe is communicated with the water storage chamber through a check valve.

Preferably, the water conveying pipe is a serpentine coil pipe.

Preferably, the pipe surface of the serpentine coil is concave-convex.

Preferably, an electric heating chamber is further arranged below the combustion chamber, the electric heating chamber is communicated with the water storage chamber, and an electric heating pipe is placed in the electric heating chamber.

Preferably, the electrothermal heating chamber is made of seamless steel tubes.

Preferably, the burner is located on one side of the body.

Preferably, an explosion-proof valve is further arranged on one side, located on the combustor, of the body.

Preferably, the water level meter is communicated with the water storage chamber.

Preferably, the body is externally provided with a thermal insulation layer.

The utility model provides a steam generator, through utilizing first return passage, second return passage, third return passage and fourth return passage, make the flue gas that produces of burning continuously wash away the convection heat transfer to the interior outer casing of reservoir chamber, improve the collection efficiency of fuel heat energy, the heat radiation reservoir chamber that the burning of cooperation combustor and fuel produced greatly improves this steam generator's gas production speed, through utilizing fifth return passage to wash away the convection heat transfer to the raceway of make-up water, realize preheating the make-up water, further improve the collection to flue gas heat energy, improve the thermal efficiency, reduce this steam generator's running cost, secondly, the raceway designs into snakelike coil pipe dress and unsmooth tube face, increased the area of contact of raceway and flue gas, with further collecting the heat energy before the flue gas is discharged, improve the thermal efficiency, in addition, the lateral arrangement of the burner is beneficial to protecting the burner from being influenced by high temperature or from flue gas backflow to damage the burner, the service life of the steam generator is prolonged, and the maintenance cost is reduced.

Drawings

Fig. 1 is a schematic partial structure diagram of a steam generator according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is a schematic view of the horizontal arrangement of the water pipe 8 in fig. 1 according to the present invention.

Detailed Description

The present invention provides a steam generator, which is further described below with reference to the accompanying drawings, and it should be noted that the technical solution and design principle of the present invention are described in detail below with only one optimized technical solution.

The utility model provides a pair of steam generator, refer to fig. 1 and fig. 2, it includes a body 5, a combustor 7, a water-feeding tank (not shown), a water-feeding pump (not shown), the water-feeding tank passes through the water-feeding pump and carries the makeup water to body 5, wherein, the body include a combustion chamber 6, a reservoir chamber 18 and with a steam storage room 4 that reservoir chamber 18 intercommunication set up, reservoir chamber 18 encircles combustion chamber 6 sets up, steam storage room 4 is located combustion chamber top 6, steam storage room 4 with reservoir chamber 18 intercommunication sets up, still is provided with a steam baffle 15 between this steam storage room and the reservoir chamber, and this steam baffle 15 is used for the moisture that the check steam carried, combustion chamber 6 is first return passage L1, the reservoir chamber periphery encircles and sets up an annular channel 9, combines fig. 2, is provided with two-channel baffles 14a, a, 14b, under the spacing action of the two channel baffles 14a and 14b, the annular channel 9 is divided into a second return channel L2, a third return channel L3 and a fourth return channel L4, and a fifth return channel L5 is arranged on the periphery of the fourth return channel L4.

Referring to fig. 1, in this embodiment, the fifth return path L5 is connected to a chimney 1, a safety valve 2 and a steam outlet pipe 3 are further connected above the steam storage chamber of the body 5, a steam-water separator 17 is further disposed at a lower end of the steam outlet pipe, the water storage chamber 18 is connected to a water feed pump through a group of water pipes 8, the water pipes 8 are disposed in the fifth return path L5, a water inlet 8a of the group of water pipes 8 is connected to the water pump, a water outlet (not shown) of the group of water pipes is connected to the water storage chamber 18 of the steam generator, a check valve is further disposed at a connection between the water outlet and the water storage chamber 18, the check valve prevents a steam-water mixture from flowing back into the water pipes, a smoke outlet 12 is disposed at a lower portion of the combustion chamber 6, and the second return path L2 is communicated with the first return path L1 through the smoke outlet 12.

Referring to fig. 3, in the embodiment, the water pipe 8 is a serpentine coil, which helps to increase the contact surface with the flue gas, so as to recover the heat carried by the flue gas more efficiently.

Referring to fig. 1, in the embodiment, an electric heating chamber 11 is disposed below the combustion chamber 6, the electric heating chamber 11 is communicated with a water storage chamber 18, an electric heating tube 10 is disposed in the electric heating chamber, when steam is required to be electrically heated, the electric heating tube 10 is activated to heat the steam, and the heating tube 10 can be used with the combustion engine 7 to accelerate the air outlet efficiency.

Referring to fig. 1 and 2, the burner 7 is located at one side of the body 5, and this burner side-mounted manner is favorable for protecting the burner from high temperature, and in addition, the body 5 is further provided with an explosion-proof valve 13 to prevent explosion caused by over-high air pressure inside the body.

Preferably, the water storage chamber 18 is further communicated with a water level gauge (not shown).

Preferably, the body is externally provided with an insulating layer 16, which prevents heat from being emitted to the external environment, while preventing external personnel from touching the machine and causing injury.

The heating process of the present steam generator is described as follows:

referring to fig. 1, when the burner 7 is started, huge heat is released from the combustion chamber 6 and smoke is generated, the smoke flushes the inner wall of the water storage chamber, meanwhile, the heat completes the first return heat exchange of the stored water in the water storage chamber through the inner wall of the radiation water storage chamber, then, in the combination of fig. 1 and fig. 2, the arrow in the figure points to the flow direction of the smoke in the channel, the smoke flows to the second return channel L2 through the smoke outlet 12 after being generated in the combustion chamber 6, the smoke flows to the top from the bottom of the second return channel L2, in the process, the smoke flushes the outer wall of the water storage chamber 18 for convection heat exchange, the second return heat exchange of the stored water in the water storage chamber is completed, after the smoke reaches the top of the second return channel L2, the smoke enters the third return channel L3 through the smoke drain hole (not shown) arranged at the upper part of the channel baffle plate 14a, and the smoke flows to the bottom at the top of the third return channel L3, continuously flushing the outer wall of the water storage chamber 18 for convective heat exchange to complete third return heat exchange of water stored in the water storage chamber, after the flue gas reaches the bottom of a third return channel L3, the flue gas enters a fourth return channel L4 through a smoke evacuation hole (not shown) arranged below a channel baffle 14b, the flue gas flows to the top at the bottom of the fourth return channel L4, the flue gas continuously flushes the outer wall of the water storage chamber 18 for convective heat exchange to complete the fourth return heat exchange of the water stored in the water storage chamber, after the flue gas reaches the top of the fourth return channel L4, the flue gas flows to a fifth return channel L5, the flue gas flushes the water conveying pipe 8 for convective heat exchange in the fifth return channel to complete preheating of the supplementary water in the water conveying pipe, then the flue gas is discharged through a chimney, during the heat exchange process, steam generated by the water storage chamber firstly enters a steam-water separator 17 after being subjected to simple moisture isolation through a pipe 15, pure steam is discharged from the steam outlet pipe 3 after passing through the steam-water separator 17.

This steam generator is through setting up the passageway of five return strokes in order to collect the heat that the flue gas carried, and the heat that these some flue gases carried not only directly acts on heating cooling water on reservoir chamber 18, still preheats the make-up water of carrying in raceway 8, has improved this steam generator's thermal efficiency, improves the efficiency of giving vent to anger and gives vent to anger the temperature.

Certainly, the steam generator further includes basic parts such as a water supply pipeline, an electric cabinet, a pressure gauge, a pressure controller, etc., which are not illustrated in the drawings, and the basic parts of the steam generator as the prior art are not described in this embodiment again.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (10)

1. The utility model provides a steam generator, its includes a body, a combustor, a feed-water tank, a feed-water pump, the feed-water tank carries the feedwater to the body through the feed-water pump, the body include a combustion chamber, a reservoir chamber and with a steam storage room that the reservoir chamber intercommunication set up, the reservoir chamber encircles the combustion chamber sets up, the steam storage room is located the combustion chamber top, the steam storage room with the reservoir chamber intercommunication sets up, and its characterized in that, it includes:

the combustion chamber is used as a first return passage, the flue gas generated in the combustion chamber flushes the inner wall of the water storage chamber to complete convective heat exchange, and primary heat exchange is carried out on the stored water in the water storage chamber by matching with heat radiation released in the combustion chamber;

the second return passage is arranged at the periphery of the water storage chamber and is communicated with the first return passage through a smoke outlet hole which is arranged at the lower part of the combustion chamber, the smoke enters the second return passage from the first return passage through the smoke outlet hole and flushes the outer wall of the water storage chamber in the second return passage to finish convective heat exchange, and secondary heat exchange is carried out on the stored water in the water storage chamber;

the third return passage and the second return passage are arranged on the periphery of the water storage chamber side by side, a first passage baffle is arranged between the third return passage and the second return passage, the third return passage and the second return passage are communicated through a first smoke evacuation hole arranged at the upper part of the first passage baffle, the smoke enters the third return passage from the second return passage through the first smoke evacuation hole, the third return passage flushes the outer wall of the water storage chamber to complete convective heat exchange, and the stored water in the water storage chamber is subjected to heat exchange for three times;

the fourth return channel and the third return channel are arranged on the periphery of the water storage chamber side by side, a second channel baffle is arranged between the fourth return channel and the third return channel, the fourth return channel and the third return channel are communicated through a second smoke evacuation hole arranged at the lower part of the second channel baffle, the smoke enters the fourth return channel from the third return channel through the second smoke evacuation hole, the outer wall of the water storage chamber is flushed by the fourth return channel to complete convective heat exchange, and the stored water in the water storage chamber is subjected to four times of heat exchange; and

the fifth return passage is arranged at the periphery of the fourth return passage, the fifth return passage is communicated with the fourth return passage through a third smoke evacuation hole arranged at the upper part of the fourth return passage, the fifth return passage is also communicated with an external environment through a chimney, a group of water conveying pipes are arranged in the fifth return passage, one ends of the group of water conveying pipes are connected with the water feed pump, the other ends of the group of water conveying pipes are connected with the water storage chamber, the smoke enters the fifth return passage from the fourth return passage through the third smoke evacuation hole, the water conveying pipes are flushed in the fifth return passage to finish convective heat exchange, and the supplementary water in the water conveying pipes is preheated.

2. A steam generator according to claim 1, wherein the water duct is in communication with the water storage compartment through a check valve.

3. A steam generator according to claim 1 or 2, wherein the water transport tubes are serpentine coils.

4. The steam generator of claim 3, wherein the serpentine coil has a concave-convex tube face.

5. The steam generator as claimed in claim 1, wherein an electrically heated heating chamber is further provided below the combustion chamber, the electrically heated heating chamber being in communication with the water storage chamber, the electrically heated heating chamber being provided with an electric heating tube.

6. The steam generator of claim 5, wherein the electrically heated chamber is made of seamless steel tubing.

7. A steam generator according to claim 1, wherein the burner is located on one side of the body.

8. A steam generator according to claim 7, wherein the body is further provided with an explosion-proof valve.

9. The steam generator of claim 1, further comprising a water level gauge in communication with the water storage compartment.

10. The steam generator of claim 1, wherein the body is externally provided with a thermal insulation layer.

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