CN215597232U

CN215597232U - Safe energy-conserving gas steam generator

Info

Publication number: CN215597232U
Application number: CN202121462278.2U
Authority: CN
Inventors: 蔡军
Original assignee: Linyi Taihe Environmental Protection And Energy Saving Technology Co ltd
Current assignee: Linyi Taihe Environmental Protection And Energy Saving Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-21
Anticipated expiration: 2031-06-28

Abstract

The utility model designs a safe energy-saving gas steam generator which comprises a combustion chamber, wherein a heat exchange chamber is arranged above the combustion chamber, a smoke collecting hood is arranged above the heat exchange chamber and is communicated with the combustion chamber, one side of the smoke collecting hood is communicated with a vertically-arranged smoke exhaust pipe, the upper end of the smoke exhaust pipe is arranged as a discharge end, and connecting holes are formed in the pipe walls of the upper end and the lower end of the smoke exhaust pipe; the heat exchange chamber is provided with a water inlet pipe, the water inlet pipe sequentially penetrates through two connecting holes in the smoke exhaust pipe from top to bottom and then is communicated with the heat exchange chamber, and the part, between the two connecting holes, of the water inlet pipe is located in the smoke exhaust pipe. The waste gas generated by the combustion chamber can be contacted with the water inlet pipe arranged in the smoke exhaust pipe, and the cold water conveyed downwards in the water inlet pipe is preheated by utilizing the residual heat energy in the waste gas, so that the steam generation efficiency in the heat exchanger is improved.

Description

Safe energy-conserving gas steam generator

Technical Field

The utility model relates to the technical field of gas steam generators, in particular to a safe and energy-saving gas steam generator.

Background

Steam boilers, also sometimes called steam generators, are important components of steam power plants, and utility boilers, steam turbines, and generators are the main machines of thermal power stations, so utility boilers are important facilities for producing electric energy, and industrial boilers are essential facilities for supplying steam required for production and heating in various industrial enterprises.

However, when the conventional gas-fired steam boiler is used, the exhaust gas generated by gas combustion is usually directly discharged to the external environment through treatment, and the discharged exhaust gas also contains a large amount of heat, so that the heat is not well utilized, the utilization rate of fuel is reduced, and the heat supplied by the steam boiler is also reduced.

Disclosure of Invention

The utility model aims to provide and design a safe and energy-saving gas steam generator aiming at the defect that the heat in the waste gas discharged by gas combustion cannot be utilized in the prior art, and the heat in the waste gas is utilized to preheat the water entering a heat exchanger, so that the gas utilization rate and the steam generation efficiency are improved.

In order to achieve the purpose, the utility model provides the following technical scheme: a safe energy-saving gas steam generator comprises a combustion chamber, wherein a heat exchange chamber is arranged above the combustion chamber, a smoke collecting hood is arranged above the heat exchange chamber and is communicated with the combustion chamber, one side of the smoke collecting hood is communicated with a vertically-arranged smoke exhaust pipe, the upper end of the smoke exhaust pipe is arranged as a discharge end, and connecting holes are formed in pipe walls at the upper end and the lower end of the smoke exhaust pipe; the heat exchange chamber is provided with a water inlet pipe, the upper end of the water inlet pipe penetrates through a connecting hole in the upper end of the smoke exhaust pipe and then is provided with a water inlet, the lower end of the water inlet pipe penetrates through a connecting hole in the lower end of the smoke exhaust pipe and then is communicated with the heat exchange chamber, and the part, between the two connecting holes, of the water inlet pipe is located in the smoke exhaust pipe. The produced waste gas of combustion can enter into the pipe of discharging fume in the combustion chamber like this through collection petticoat pipe, when waste gas upwards discharged along the pipeline of discharging fume the pipe, waste gas and the intraductal inlet tube contact that sets up of discharging fume to and carry out heat transfer between the pipe wall of inlet tube, and then preheat the cold water of carrying downwards in the inlet tube, improve the temperature of cold water in the inlet channel, and then improve the follow-up steam production efficiency in heat exchanger of cold water.

The utility model is further improved in that a sealing ring is arranged between the connecting holes on the water inlet pipe and the smoke exhaust pipe, so that waste gas is prevented from being discharged from a gap between the smoke exhaust pipe and the water inlet pipe, and further waste of heat in the waste gas is avoided.

The utility model is further improved in that a blower is arranged at the joint of the smoke collecting hood and the smoke exhaust pipe, and waste gas and the like collected in the smoke collecting hood are input into the smoke exhaust pipe through the blower.

The utility model is further improved in that a water inlet regulating valve is arranged on the part of the water inlet pipe, which is positioned outside the smoke exhaust pipe; the combustor is provided with a gas inlet pipe, and the gas inlet pipe is provided with a gas regulating valve. Therefore, the input quantity of the fuel gas and the input quantity of the cold water can be respectively adjusted by adjusting the fuel gas adjusting valve and the water inlet adjusting valve, so that the input quantity of the cold water in the heat exchange chamber and the heat energy generated in the combustion chamber are always in a balanced state.

The utility model is further improved in that the lower end of the smoke exhaust pipe is provided with an ash deposition box; and an ash cleaning component is arranged above the ash deposition box and in the smoke exhaust pipe. After this gas steam generator used a period like this, the user utilized the deashing subassembly will discharge fume on pipe and the inlet tube absorbent dust clean up to make the heat transfer efficiency between waste gas and the inlet tube not influenced by the dust on the pipe wall, and then improved the thermal utilization ratio that contains in heat transfer efficiency and the waste gas.

The utility model further improves the ash removal component, the ash removal component comprises an annular disc, a traction rope is arranged at the upper end of the disc, a first connecting rod is connected to the lower end of the disc, two ends of the first connecting rod in the horizontal direction are both connected with scraping plates, the two scraping plates are respectively contacted with the inner wall of the smoke exhaust pipe and the pipe wall of the water inlet pipe, and dust adsorbed on the smoke exhaust pipe and the pipe wall of the water inlet pipe is scraped off in the process that the disc is pulled to ascend by the traction rope.

The utility model further improves the structure that the lower end of the first connecting rod is connected with a second connecting rod, two ends of the second connecting rod are connected with brushes respectively, the two brushes are respectively contacted with the inner wall of the smoke exhaust pipe and the pipe wall of the water inlet pipe, and dust remained after the scraping of the scraping plate is swept away.

The smoke exhaust pipe has the beneficial effects that in the using process, waste gas generated by combustion can be collected through the smoke collecting hood and discharged into the smoke exhaust pipe. Meanwhile, in the process that the waste gas is upwards discharged along the smoke exhaust pipe, the waste gas is contacted with the water inlet pipe arranged in the smoke exhaust pipe, heat is transferred between the waste gas and the pipe wall of the water inlet pipe, the cold water conveyed downwards in the water inlet pipe is preheated by utilizing the residual heat energy in the waste gas, the temperature of the cold water in the water inlet pipe is increased, and the subsequent steam generation efficiency of the cold water in the heat exchanger is further improved. In addition, when the dust adsorbed on the pipe wall of the water inlet pipe and the smoke exhaust pipe in the smoke exhaust pipe is too much, the ash removal assembly can be started in time to clean the pipe wall of the smoke exhaust pipe and the pipe wall of the water inlet pipe.

In addition, the utility model has reliable design principle, simple structure and very wide application prospect.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure, 1, a gas inlet pipe, 2, a gas regulating valve, 3, a combustion chamber, 4, a heat exchange chamber, 5, a smoke collecting hood, 6, a blower, 7, a smoke exhaust pipe, 8, a water inlet regulating valve, 9, a water inlet pipe, 10, a traction rope, 11, an ash cleaning component, 12, an ash deposition box, 13, a connecting hole, 14, a disc, 15, a first connecting rod, 16, a second connecting rod, 17, a brush and 18, a scraper blade are arranged.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following explains key terms appearing in the present invention.

As shown in fig. 1 to 2, the utility model provides a safe and energy-saving gas steam generator, which comprises a combustion chamber 3, wherein a gas inlet pipe 1 for allowing gas to enter the combustion chamber 3 is arranged on the combustion chamber 3, and a gas regulating valve 2 for controlling gas flow is arranged on the gas inlet pipe 1. A heat exchange chamber 4 is arranged above the combustion chamber 3, a water inlet pipe 9 is connected to the heat exchange chamber 4, and the water inlet pipe 9 is communicated with a heat exchange pipeline in the heat exchange chamber 4. Further, in order to adjust the flow of water in the water inlet pipe 9 conveniently, the water inlet pipe 9 is further provided with a water inlet adjusting valve 8.

In addition, be provided with collection petticoat pipe 5 in the top of heat exchange chamber 4, collection petticoat pipe 5 and combustion chamber 3 intercommunication, one side of collection petticoat pipe 5 still communicates the pipe 7 of discharging fume of vertical placing, just the upper end of the pipe 7 of discharging fume sets up to the discharge end. Furthermore, in order to conveniently discharge the waste gas and the like in the smoke collecting hood 5 into the smoke exhaust pipe 7, a blower 6 is installed at the connection part of the smoke collecting hood 5 and the smoke exhaust pipe 7, and the waste gas in the smoke collecting hood 5 is blown into the smoke exhaust pipe 7 through the blower 6. In addition, all be provided with connecting hole 13 on the pipe wall at the upper and lower both ends of tub 7 of discharging fume, set up the water inlet after the upper end of inlet tube 9 passes from the connecting hole 13 of tub 7 upper end of discharging fume, the lower extreme of inlet tube 9 passes back and heat exchange chamber 4 intercommunication from the connecting hole 13 of tub 7 lower extreme of discharging fume, just the part that is in between two connecting holes 13 on the inlet tube 9 is located tub 7 of discharging fume, makes the liquid in the inlet tube 9 carry out heat transfer with the waste gas in the tub 7 of discharging fume when flowing through tub 7 of discharging fume like this. In addition, the water inlet regulating valve 8 is preferably installed on a portion of the water inlet pipe 9 located outside the smoke exhaust pipe 7; a sealing ring is arranged between the connecting hole 13 on the smoke exhaust pipe 7 and the water inlet pipe 9, so that waste gas and the like are prevented from escaping from the connecting hole 13.

Further, in order to prevent the surface of the water inlet pipe 9 from being covered by dust in the exhaust gas and influence the heat transfer efficiency between the exhaust gas and the water flow, an ash deposit box 12 and an ash cleaning assembly 11 are arranged in the smoke exhaust pipe 7. Wherein the ash deposition box 12 is arranged at the lower end of the smoke exhaust pipe 7, and the ash cleaning component 11 is arranged at the upper end of the ash deposition box 12. And the ash removal component 11 comprises a circular disc 14, a traction rope 10 is arranged at the upper end of the disc 14, the lower end of the disc 14 is connected with a first connecting rod 15, two ends of the first connecting rod 15 in the horizontal direction are both connected with scraping plates 18, and the two scraping plates 18 are respectively contacted with the inner wall of the smoke exhaust pipe 7 and the pipe wall of the water inlet pipe 9. Furthermore, in order to improve the ash removal effect, the lower end of the first connecting rod 15 is connected with a second connecting rod 16, two ends of the second connecting rod 16 are connected with brushes 17, and the two brushes 17 are respectively contacted with the inner wall of the smoke exhaust pipe 7 and the pipe wall of the water inlet pipe 9 to secondarily clean the place scraped by the scraper 18.

In the actual use process of the utility model: the gas with a certain flow proportion is controlled by controlling the gas regulating valve 2 and is conveyed into the combustion chamber 3 through the gas inlet pipe 1, and is fully mixed with air and completely combusted in the combustion chamber 3, so that heat energy and waste gas are generated. The heat energy generated in the combustion chamber 3 is subjected to heat energy exchange through the heat exchanger in the heat exchange chamber 4, the heat energy is transferred to the cold water in the heat exchange pipeline, the cold water is heated to a vaporization state, and steam is formed and is discharged from the steam outlet. Waste gas generated by combustion in the combustion chamber 3 enters the smoke exhaust pipe 7 through the smoke collecting hood 5, and the waste gas is exhausted upwards along the pipeline of the smoke exhaust pipe 7. Simultaneously, at the in-process of upwards discharging, waste gas and the inlet tube 9 contact of setting in the tub 7 of discharging fume to carry out heat transfer between the pipe wall with inlet tube 9, and then preheat the cold water of carrying downwards in the inlet tube 9, improve the temperature of cold water in the inlet tube 9, and then improve the follow-up steam production efficiency in the heat exchanger of cold water. In addition, when the dust adsorbed on the water inlet pipe 9 in the smoke exhaust pipe 7 is excessive, the ash cleaning component 11 can be started to clean the pipe wall of the smoke exhaust pipe 7 and the pipe wall of the water inlet pipe 9.

Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or alterations to the embodiments of the present invention may be made by those skilled in the art without departing from the spirit and substance of the present invention, and such modifications or alterations are intended to be within the scope of the present invention; any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all such changes or substitutions are included in the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The safe energy-saving gas steam generator is characterized by comprising a combustion chamber (3), wherein a heat exchange chamber (4) is arranged above the combustion chamber (3), a smoke collecting hood (5) is arranged above the heat exchange chamber (4), the smoke collecting hood (5) is communicated with the combustion chamber (3), one side of the smoke collecting hood (5) is communicated with a vertically-arranged smoke exhaust pipe (7), the upper end of the smoke exhaust pipe (7) is arranged as a discharge end, and connecting holes (13) are formed in the pipe walls of the upper end and the lower end of the smoke exhaust pipe (7); be provided with inlet tube (9) on heat exchange chamber (4), set up the water inlet after passing in connecting hole (13) of discharging fume pipe (7) upper end is followed to the upper end of inlet tube (9), the lower extreme of inlet tube (9) passes back and heat exchange chamber (4) intercommunication in connecting hole (13) of discharging fume pipe (7) lower extreme, the part that is in between two connecting holes (13) on inlet tube (9) is located the pipe (7) of discharging fume.

2. The safe and energy-saving gas steam generator according to claim 1, wherein a sealing ring is arranged between the water inlet pipe (9) and the connecting hole (13) on the smoke exhaust pipe (7).

3. A safe and energy-saving gas steam generator according to claim 2, characterized in that a blower (6) is provided at the connection of the fume collecting hood (5) and the fume exhaust pipe (7).

4. The safe and energy-saving gas steam generator according to claim 1, wherein a water inlet regulating valve (8) is arranged on the part of the water inlet pipe (9) outside the smoke exhaust pipe (7); the combustor (3) is provided with a gas inlet pipe (1), and the gas inlet pipe (1) is provided with a gas regulating valve (2).

5. The safe and energy-saving gas steam generator according to claim 1, wherein the lower end of the smoke exhaust pipe (7) is provided with an ash box (12); an ash cleaning component (11) is arranged in the smoke exhaust pipe (7) above the ash deposition box (12).

6. The safe and energy-saving gas steam generator according to claim 5, wherein the ash removal assembly (11) comprises a circular disc (14), a traction rope (10) is arranged at the upper end of the disc (14), a first connecting rod (15) is connected to the lower end of the disc (14), two scraping plates (18) are connected to the first connecting rod (15) at two ends in the horizontal direction, and the two scraping plates (18) are respectively in contact with the inner wall of the smoke exhaust pipe (7) and the pipe wall of the water inlet pipe (9).

7. The safe and energy-saving gas steam generator according to claim 6, wherein the lower end of the first connecting rod (15) is connected with a second connecting rod (16), both ends of the second connecting rod (16) are connected with brushes (17), and the two brushes (17) are respectively contacted with the inner wall of the smoke exhaust pipe (7) and the pipe wall of the water inlet pipe (9).