CN111473313A

CN111473313A - Horizontal gas steam boiler

Info

Publication number: CN111473313A
Application number: CN202010398521.2A
Authority: CN
Inventors: 刘波进; 李艳红; 黄芝粤; 陈江湖
Original assignee: Long Zheng Environmental Protection Co ltd
Current assignee: Long Zheng Environmental Protection Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-07-31

Abstract

The invention belongs to the technical field of steam boilers, and particularly relates to a horizontal type gas-fired steam boiler which comprises a base, a boiler body, a burner, a flue, a boiler smoke window, a boiler control cabinet and an economizer assembly, wherein the boiler body is fixed on the surface of the base; the flue gas that produces among the combustible gas combustion process flows through the energy-saving appliance, finally discharge from the boiler smoke window, the moisturizing pipe can constantly lead to water to the energy-saving appliance, because there is a large amount of heats in the middle of the flue gas, consequently, can heat the cold water in the energy-saving appliance, and let in the water storage chamber from the inlet tube with the hot water after the heating, in addition, boiler control cabinet control moisturizing control valve control gets into the water yield size of energy-saving appliance, the boiler control cabinet control of intaking controls the water yield size that gets into the water storage chamber, with the thermal efficiency of further promotion boiler.

Description

Horizontal gas steam boiler

Technical Field

The invention belongs to the technical field of steam boilers, and particularly relates to a horizontal type gas steam boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy, the boiler comprises a boiler and a furnace, the boiler is originally a water container heated on fire, the furnace is a place for burning the fuel, and the boiler comprises the boiler and the furnace.

The boiler is operated at the same time in the two parts of boiler and boiler, after water enters the boiler, the boiler heating surface transfers the absorbed heat to water in the steam-water system, so that the water is heated into hot water with certain temperature and pressure or generated steam, and the hot water or the generated steam is led out for application. In the combustion equipment part, fuel is combusted to continuously release heat, high-temperature flue gas generated by combustion transfers the heat to a boiler heating surface through heat propagation, the temperature of the high-temperature flue gas is gradually reduced, and the high-temperature flue gas is finally discharged from a chimney.

The three-return-stroke wet-back type fire tube structure of the existing gas steam boiler is highly favored by domestic enterprises and users due to the characteristics of compact structure, small volume, small occupied area, high automation degree and the like, but the existing boiler generally has the problems of low safety coefficient, large smoke discharge amount, overhigh smoke discharge temperature and low thermal efficiency.

Disclosure of Invention

The invention aims to provide a horizontal type gas-steam boiler, and aims to solve the technical problem that the gas-steam boiler in the prior art is low in heat efficiency.

In order to achieve the above object, the embodiment of the present invention provides a horizontal gas-fired steam boiler, which includes a base, a boiler body, a burner, a flue, a boiler smoke window, a boiler control cabinet and an economizer assembly, wherein the boiler body is fixed on the surface of the base, a water storage cavity is arranged inside the boiler body, the burner is fixed at one end of the boiler body and is communicated with the inside of the boiler body, the economizer assembly includes an economizer, a water replenishing pipe and a water inlet pipe, a rear smoke box is arranged at the rear end of the boiler body, one end of the economizer is communicated with the rear smoke box through the flue, the other end of the economizer is communicated with the boiler smoke window through the flue, the water replenishing pipe is communicated with the inside of the economizer, one end of the water inlet pipe is communicated with the inside of the economizer, and the other end of the water inlet pipe is communicated with the water storage cavity, the utility model discloses a boiler control cabinet, including boiler control cabinet, moisturizing pipe, moisturizing flowmeter and water inlet control valve, the boiler control cabinet is fixed in the surface of base, the surface of moisturizing pipe is provided with moisturizing flowmeter and moisturizing manometer, the surface of inlet tube is provided with into water flowmeter, into water manometer and water inlet control valve, the moisturizing flowmeter moisturizing manometer the flowmeter of intaking into water the manometer the water inlet control valve with moisturizing control valve all with boiler control cabinet intercommunication.

Optionally, the boiler body includes barrel, combination stove courage and a back combustion chamber section of thick bamboo, the water storage chamber set up in the inside of barrel, the combination stove courage with a back combustion chamber section of thick bamboo all set up in the inside in water storage chamber, the inside of combination stove courage is provided with the combustion chamber, the inside back combustion chamber that is provided with of a back combustion chamber section of thick bamboo, the combustion chamber communicate in back combustion chamber with the combustor, back combustion chamber with back smoke box intercommunication.

Optionally, the boiler body further comprises a two-return threaded smoke pipe and a three-return smoke pipe, the two-return threaded smoke pipe and the three-return smoke pipe are located in the water storage cavity, the two-return smoke pipe is located between the three-return smoke pipe and the combined furnace liner, a front smoke box is arranged at the front end of the cylinder body, one end of the two-return threaded smoke pipe is communicated with the flashback chamber, the other end of the two-return threaded smoke pipe is communicated with the front smoke box, one end of the three-return smoke pipe is communicated with the front smoke box, and the other end of the three-return smoke pipe is communicated with the rear smoke box.

Optionally, the inner wall of the front smoke box is sequentially provided with a first fire-resistant layer, a first steel wire mesh layer and a first heat-insulating layer from inside to outside.

Optionally, the protecgulum surface of barrel is provided with preceding cigarette chamber door, preceding cigarette chamber door from interior to exterior has set gradually second flame retardant coating, second steel wire net layer, second insulating layer and panel, be provided with on the panel with the perpendicular week board that sets up of panel, the week board is located week side of second insulating layer, week board with be provided with the lath between the second flame retardant coating, the surface of panel is provided with the handle.

Optionally, the back of barrel is covered and is provided with the explosion vent, the explosion vent includes cement layer, awl sheet layer, third flame retardant coating, third wire mesh layer, third insulating layer and the sliding plate that sets gradually from inside to outside, the tip of the chamber section of thick bamboo that backflows is equipped with back access hole, the central authorities on cement layer are equipped with and hold the mouth of cigarette, the cement layer insert locate in the back access hole and with the inner wall sliding connection of back access hole.

Optionally, the explosion vent further comprises a steel pipe, a pressure spring, a bolt and a gasket, the steel pipe penetrates through the sliding plate and is fixed on the surface of the rear cover of the barrel, the steel pipe is connected with the sliding plate in a sliding manner, the bolt is connected to the end of the steel pipe in a threaded manner, the gasket is sleeved on the surface of the bolt, the pressure spring is arranged on the surface of the steel pipe, one end of the pressure spring abuts against the sliding plate, and the other end of the pressure spring abuts against the gasket.

Optionally, a steam-water separator is arranged in the water storage cavity and comprises a uniform air hole plate, a sealing plate and an air outlet pipe, the sealing plate is vertically fixed on the inner wall of the barrel, the uniform air hole plate is horizontally arranged at the lower end of the sealing plate, the air outlet pipe is fixed on the uniform air hole plate, a steam valve is arranged at the top of the barrel, one end of the air outlet pipe is communicated with the water storage cavity, and the other end of the air outlet pipe is communicated with the steam valve.

Optionally, the economizer comprises an economizer shell, a plurality of finned tubes and a plurality of U-shaped tubes, a flue gas inlet and a flue gas outlet are formed in two ends of the economizer shell respectively, the flue gas inlet is communicated with the rear smoke box through a flue, the flue gas outlet is communicated with the boiler smoke window through the flue, the finned tubes are horizontally arranged inside the economizer shell, the two finned tubes are communicated with the water replenishing pipe and the water inlet pipe respectively, and the U-shaped tubes are located outside the economizer shell and communicated with the remaining adjacent finned tubes.

Optionally, the top of the economizer housing is provided with an ash removal port communicated with the interior of the economizer housing, the ash removal port is provided with a cover plate, and the bottom of the economizer housing is provided with an economizer drain outlet.

One or more technical schemes in the horizontal gas steam boiler provided by the embodiment of the invention at least have one of the following technical effects: the horizontal gas-fired steam boiler provides sufficient heat for the boiler body through the continuous combustion of combustible gas in the combustor in the boiler body, smoke generated in the combustion process flows through the rear smoke box and flows through the energy saver through the flue, and is finally discharged from the smoke window of the boiler, the water replenishing pipe can continuously supply water to the energy saver, cold water in the energy saver can be heated due to a large amount of heat in the smoke, the heated hot water is introduced into the water storage cavity from the water inlet pipe, in addition, the water replenishing flow meter and the water replenishing pressure gauge can provide a water replenishing flow value and a water replenishing pressure value for the boiler control cabinet, the boiler control cabinet controls the water replenishing control valve to control the water quantity entering the energy saver, the water inlet flow meter and the water inlet pressure gauge can provide a water inlet flow value and a water inlet pressure value for the boiler control cabinet, the boiler control cabinet controls the water inlet control valve to control the water quantity entering the water storage cavity, so as to further improve the thermal efficiency of the boiler.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a horizontal type gas-steam boiler according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

FIG. 3 is a side view of a horizontal gas-fired steam boiler according to an embodiment of the present invention.

Fig. 4 is a schematic view of the internal structure of the boiler body of the horizontal gas-fired steam boiler according to the embodiment of the present invention.

Fig. 5 is a sectional view taken along line a-a in fig. 4.

FIG. 6 is a schematic structural diagram of a rear tube plate of a horizontal gas steam boiler according to an embodiment of the present invention.

FIG. 7 is a schematic structural diagram of a front tube plate of a horizontal gas-fired steam boiler according to an embodiment of the present invention.

FIG. 8 is a sectional view of a front box door of a horizontal gas-fired steam boiler according to an embodiment of the present invention.

FIG. 9 is a sectional view of the front explosion vent of the horizontal gas steam boiler according to the embodiment of the present invention.

FIG. 10 is a front view of an economizer for a horizontal gas steam boiler according to an embodiment of the present invention.

FIG. 11 is a side view of an economizer for a horizontal gas steam boiler in accordance with an embodiment of the present invention.

FIG. 12 is a top view of a steam-water separator of a horizontal gas steam boiler according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-base 11-front tube plate 12-rear tube plate

13-drag link 14-diagonal draw bar 15-sewage draining outlet

16-pressure valve gauge seat 17-steam valve seat 18-safety valve seat

19-exhaust valve seat 20-boiler body 21-cylinder

22-combined furnace pipe 23-recombustion chamber cylinder 24-two-return-stroke threaded smoke pipe

25-three-return smoke pipe 26-front smoke box 27-front smoke box door

28-explosion vent 29-steam-water separator 30-burner

40-flue 50-boiler smoke window 60-boiler control cabinet

61-heat insulation layer 70-energy saver component 71-energy saver

72-water replenishing pipe 73-water inlet pipe 74-water replenishing flowmeter

75-water-supply pressure measuring meter 76-water-supply control valve 77-water inlet flowmeter

78-water inlet pressure measuring meter 79-water inlet control valve 80-ladder platform

90-water level cylinder 161-pressure valve meter 171-steam valve

181 safety valve 191, exhaust valve 211 and water storage cavity

221-combustion chamber 222-fire tube port 223-fire-resistant heat-insulating layer

231-flashback chamber 232-rear passage orifice 261-first flame retardant coating

262-first steel wire mesh layer 263-first heat insulation layer 271-second fire-resistant layer

272-second steel wire mesh layer 273-second insulating layer 274-panel

275-peripheral plate 276-steel plate strip 277-handle

281-cement layer 282-conical plate layer 283-third refractory layer

284-third steel wire mesh layer 285-third insulating layer 286-sliding plate

287-steel pipe 288-pressure spring 289-bolt

291-air homogenizing hole plate 292-seal plate 293-air outlet pipe

711-economizer shell 712-finned tube 713-U-shaped tube

714-flue gas inlet 715-flue gas outlet 716-ash cleaning port

717-cover plate 718-energy saver sewage outlet 2811-smoke containing port

2891 washer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 and 3 to 4, a horizontal gas-fired steam boiler is provided, which includes a base 10, a boiler body 20, a burner 30, a flue 40, a boiler louver 50, a boiler control cabinet 60, and an economizer assembly 70, wherein the boiler body 20 is fixed on a surface of the base 10, a water storage cavity 211 is provided inside the boiler body 20, the burner 30 is fixed at one end of the boiler body 20 and is communicated with the inside of the boiler body 20, the economizer assembly 70 includes an economizer 71, a water replenishing pipe 72, and a water inlet pipe 73, a rear smoke box (not shown in the drawings) is provided at a rear end of the boiler body 20, one end of the economizer 71 is communicated with the rear smoke box through the flue 40, the other end of the economizer 71 is communicated with the boiler louver 50 through the flue 40, the water replenishing pipe 72 is communicated with the inside of the economizer 71, the one end of inlet tube 73 with the inside intercommunication of economizer 71, the other end of inlet tube 73 with water storage cavity 211 communicates, boiler switch board 60 is fixed in the surface of base 10, the surface of moisturizing pipe 72 is provided with moisturizing flowmeter 74 and moisturizing manometer 75, the surface of inlet tube 73 is provided with into water flowmeter 77, into water manometer 78 and water control valve 79, moisturizing flowmeter 74 moisturizing manometer 75 intake flowmeter 77 into water manometer 78 into water manometer 79 with moisturizing control valve 76 all with boiler switch board 60 communicates.

Specifically, the flue gas generated in the combustion process of the combustible gas flows through the rear smoke box, flows through the economizer 71 through the flue 40 and is finally discharged from the boiler smoke window 50, the water supplementing pipe 72 can continuously supply water to the economizer 71, because a large amount of heat exists in the flue gas, cold water in the economizer 71 can be heated, and the heated hot water is introduced into the water storage cavity 211 from the water inlet pipe 73, in addition, the make-up water flow meter 74 and the make-up water pressure meter 75 may provide a make-up water flow value and a make-up water pressure value to the boiler control cabinet 60, the boiler control cabinet 60 controls the make-up water control valve 76 to control the amount of water entering the economizer 71, the intake water flow meter 77 and the intake water pressure meter 78 may provide an intake water flow value and an intake water pressure value to the boiler control cabinet 60, and the boiler control cabinet 60 controls the intake water control valve 79 to control the amount of water entering the water storage cavity 211, so as to further improve the thermal efficiency of the boiler.

In this embodiment, the horizontal gas steam boiler further includes a ladder platform 80, a lower end of the ladder platform 80 is fixed to the surface of the pedestal 10, and an upper end of the ladder platform 80 is fixed to the top of the boiler body 20. Ladder platform 80 may facilitate diagnosis and maintenance of the boiler; the boiler body 20 is further provided with a water level cylinder 90 for measuring the water amount in the water storage cavity 211, and the water level meter is connected with the boiler control cabinet 60. Be provided with highest water level alarm line, minimum water level alarm line and median line on water level section of thick bamboo 90, when the liquid level of stock solution intracavity crosses low too high, boiler control cabinet 60 reports to the police, controls simultaneously boiler body 20's intaking or opening of combustor 30 and stops.

In this embodiment, further, a sewage draining outlet 15 is arranged at the bottom of the boiler body 20; the top of the boiler body 20 is also provided with a safety valve 181, an exhaust valve 191 and a pressure gauge 161. The safety valve 181 can detect the vapor pressure in the liquid storage chamber, the exhaust valve 191 can release the high-pressure vapor in a high-pressure state, and the pressure valve gauge 161 can facilitate the input of fuel gas.

In another embodiment of the present invention, as shown in fig. 1 to 5, the boiler body 20 includes a cylinder 21, a combined furnace 22 and a flashback chamber cylinder 23, the water storage cavity 211 is disposed inside the cylinder 21, the combined furnace 22 and the flashback chamber cylinder 23 are both disposed inside the water storage cavity 211, a combustion chamber 221 is disposed inside the combined furnace 22, the combustion chamber 221 is communicated with the burner 30, a flashback chamber 231 is disposed inside the flashback chamber cylinder 23, the combustion chamber 221 is communicated with the flashback chamber 231, and the flashback chamber 231 is communicated with the rear smoke box.

Specifically, the fuel is combusted in the combustion chamber 221, the surface of the combined furnace pipe 22 is provided with an annular structure for increasing the surface area of the combined furnace pipe 22, so that the heating efficiency and the fuel utilization rate can be increased, the flue gas generated by combustion can be concentrated in the back combustion chamber 231, and the heat in the flue gas can also heat the water in the water storage cavity 211, so that the heating efficiency is further increased.

In this embodiment, further, a sampling device is disposed on the surface of the cylinder 21; the inner wall of the cylinder 21 is provided with a boiler heat-insulating layer 61. The heat insulation layer 61 can reduce the heat loss.

In this embodiment, a pressure valve gauge seat 16, a relief valve seat 18 and an exhaust valve seat 19 are further disposed on the top of the cylinder 21, and the pressure valve gauge 161, the exhaust valve 191 and the relief valve 181 are respectively fixed on the pressure valve gauge seat 16, the exhaust valve seat 19 and the relief valve seat 18.

In this embodiment, a burner port 222 is further provided at an end of the combustion chamber 221, the burner 30 communicates with the combustion chamber 221 through the burner port 222, a fire-resistant heat-insulating layer 223 is provided in a circumferential direction of the burner port 222, and the front smoke box 26 is located between the first fire-resistant layer 261 and the fire-resistant heat-insulating layer 223.

In another embodiment of the present invention, as shown in fig. 2 and fig. 4 to 7, the boiler body 20 further includes two return-stroke screwed smoke pipes 24 and three return-stroke smoke pipes 25, the two return-stroke screwed smoke pipes 24 and the three return-stroke smoke pipes 25 are both located in the water storage cavity 211, the two return-stroke smoke pipes are located between the three return-stroke smoke pipes 25 and the combined furnace liner 22, a front smoke box 26 is disposed at the front end of the cylinder 21, one end of the two return-stroke screwed smoke pipes 24 is communicated with the combustion chamber 231, the other end of the two return-stroke screwed smoke pipes 24 is communicated with the front smoke box 26, one end of the three return-stroke smoke pipes 25 is communicated with the front smoke box 26, and the other end of the three return-stroke smoke pipes 25 is communicated with the rear smoke box.

In this embodiment, two ends of the cylinder 21 are respectively provided with a front plate tube 11 and a rear plate tube 12, the two-pass screwed smoke tube 24 and the three-pass smoke tube 25 both pass through the front plate tube 11 and communicate with a front smoke box 26, and the three-pass smoke tube 25 passes through the rear plate tube 12 and communicates with a rear smoke box.

Specifically, the flue gas in the flashback chamber 231 sequentially flows through the two-pass threaded smoke pipe 24, the front smoke box 26 and the three-pass smoke pipe 25 and finally flows into the rear smoke box, the two-pass threaded smoke pipe 24 is more in number relative to the three-pass smoke pipe 25, the temperature of the flue gas in the pipe is higher, the smoke path is longer, the two-pass threaded smoke pipe 24 is located between the three-pass smoke pipe 25 and the combined furnace liner 22, the combination with liquid water is more sufficient, and the heat transfer efficiency is higher.

In this embodiment, further, a drag link 13 and an oblique pull rod 14 are further arranged in the water storage cavity 211, one end of the drag link 13 is connected with the rear tube plate 12, the other end of the drag link 13 is connected with the outer wall of the afterburning chamber cylinder 23, one end of the oblique pull rod 14 is connected with the top wall of the cylinder body 21, and the other end of the oblique pull rod 14 is connected with the front tube plate 11 or the rear tube plate 12. The straight pull rods 13 can increase the stability of the combined furnace pipe 22, and the inclined pull rods 14 can increase the stability of the cylinder 21.

In another embodiment of the present invention, as shown in fig. 2, the inner wall of the front smoke box 26 is sequentially provided with a first refractory layer 261, a first steel wire mesh layer 262 and a first heat insulation layer 263 from inside to outside. Specifically, the first fire-resistant layer 261, the first steel wire mesh layer 262 and the first heat-insulating layer 263 can have a better fire-resistant heat-insulating effect on the smoke in the front smoke box 26, so that the heat of the smoke can be effectively dissipated.

In another embodiment of the present invention, as shown in fig. 1 and 8, a front smoke box door 27 is disposed on a front cover surface of the barrel 21, the front smoke box door 27 is sequentially provided with a second fire-resistant layer 271, a second steel wire mesh layer 272, a second heat insulation layer 273 and a panel 274 from inside to outside, a peripheral plate 275 disposed perpendicular to the panel 274 is disposed on the panel 274, the peripheral plate 275 is located on the peripheral side of the second heat insulation layer 273, a steel strip 276 is disposed between the peripheral plate 275 and the second fire-resistant layer 271, and a handle 277 is disposed on a surface of the panel 274. Specifically, the front smoke box door 27 can facilitate detection and maintenance of the front smoke box 26, the peripheral plate 275 can facilitate opening and closing of the front smoke box door 27, the second fire-resistant layer 271, the second steel wire mesh layer 272 and the second heat insulation layer 273 can effectively insulate heat, the steel plate strip 276 can facilitate stabilization of the peripheral plate 275, and the handle 277 can facilitate holding.

In another embodiment of the present invention, as shown in fig. 1 and 9. The anti-explosion door 28 is arranged on the rear cover of the barrel body 21, the anti-explosion door 28 comprises a cement layer 281, a conical plate layer 282, a third fire-resistant layer 283, a third steel wire mesh layer 284, a third heat-insulating layer 285 and a sliding plate 286 which are sequentially arranged from inside to outside, a smoke containing port 2811 is arranged in the center of the cement layer 281, a rear passage port 232 is arranged at the end part of the reburning chamber barrel 23, and the cement layer 281 is inserted into the rear passage port 232 and is in sliding connection with the inner wall of the rear passage port 232.

Specifically, the first refractory layer 261, the second refractory layer 271 and the third refractory layer 283 are all made of lightweight castable, the first steel wire mesh layer 262, the second steel wire mesh layer 272 and the third steel wire mesh layer 284 are all made of Q-235 steel, and the first heat insulation layer 263, the second heat insulation layer 273 and the third heat insulation layer 285 are all made of aluminum silicate heat insulation felt; explosion-proof door 28 can prevent that fuel deflagration from causing the potential safety hazard to the boiler, when fuel deflagration in the combustion chamber 221, the flue gas of production can be washed explosion-proof door 28 open, in time the release, eliminate the potential safety hazard that fuel brought because of deflagration, the quality and the steadiness of cement layer 281 multiplicable explosion-proof door, the conical plate layer 282 can divide water mud layer 281 and third flame retardant coating 283, third steel wire mesh layer 284 and third insulating layer 285 make explosion-proof door 28 have good thermal insulation performance.

In another embodiment of the present invention, as shown in fig. 1 and 9, the explosion vent 28 further includes a steel pipe 287, a compression spring 288, a bolt 289, and a washer 2891, the steel pipe 287 passes through the sliding plate 286 and is fixed on the rear cover surface of the cylinder 21, the steel pipe 287 is slidably connected with the sliding plate 286, the bolt 289 is screwed on the end of the steel pipe 287, the washer 2891 is sleeved on the surface of the bolt 289, the compression spring 288 is arranged on the surface of the steel pipe 287, one end of the compression spring 288 abuts against the sliding plate 286, and the other end of the compression spring 288 abuts against the washer 2891. Specifically, the above design can increase the stability of the explosion vent 28, and at the same time, can avoid the potential safety hazard of rapid rushing out under an over-atmospheric pressure.

In another embodiment of the present invention, as shown in fig. 1 and 12, a steam-water separator 29 is disposed in the water storage cavity 211, the steam-water separator 29 includes a gas-homogenizing hole plate 291, a sealing plate 292, and a gas outlet pipe 293, the sealing plate 292 is vertically fixed on an inner wall of the cylinder 21, the gas-homogenizing hole plate 291 is horizontally disposed at a lower end of the sealing plate 292, the gas outlet pipe 293 is fixed on the gas-homogenizing hole plate 291, a steam valve 171 is disposed at a top of the cylinder 21, one end of the gas outlet pipe 293 is communicated with the water storage cavity 211, and the other end of the gas outlet pipe 293 is communicated with the steam valve 171. Specifically, the top of the cylinder 21 is further provided with a steam valve seat 17, and the steam valve 171 is fixed on the steam valve seat 17; the liquid water drops can be attached to the surfaces of the closing plate 292 and the air-homogenizing hole plate 291, the steam flows to the steam valve 171 from the air outlet pipe 293, and the steam-water separator 29 has a good separation effect on the small water drops and the steam.

In another embodiment of the present invention, as shown in fig. 1 and fig. 10 to 11, the economizer 71 includes an economizer housing 711, a plurality of finned tubes 712, and a plurality of U-shaped tubes 713, a flue gas inlet 714 and a flue gas outlet 715 are respectively disposed at two ends of the economizer housing 711, the flue gas inlet 714 is communicated with the rear smoke box through the flue, the flue gas outlet 715 is communicated with the boiler smoke window 50 through the flue, the plurality of finned tubes 712 are horizontally disposed inside the economizer housing 711, two of the finned tubes 712 are respectively communicated with the water replenishing tube 72 and the water inlet tube 73, and the plurality of U-shaped tubes 713 are disposed outside the economizer housing 711 and are communicated with the remaining adjacent finned tubes 712. Specifically, fin tubes 712 have a good absorption effect on heat in the flue gas, U-shaped tubes 713 may connect adjacent fin tubes 712, and the arrangement of U-shaped tubes 713 outside economizer casing 711 may increase the number of fin tubes 712 in a limited space to increase the heat absorption efficiency of economizer 71.

In another embodiment of the present invention, as shown in fig. 1 and fig. 10 to 11, an ash cleaning opening 716 communicated with the interior of the economizer housing 711 is disposed at the top of the economizer housing 711, a cover plate 717 is disposed at the ash cleaning opening 716, and an economizer drain 718 is disposed at the bottom of the economizer housing 711. Specifically, the ash removal port 716 and the blow down port 15 may facilitate timely ash removal and blow down by the economizer 71.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A horizontal gas steam boiler is characterized in that: including base, boiler body, combustor, flue, boiler smoke window, boiler switch board and energy-saving appliance subassembly, the boiler body is fixed in the surface of base, the inside of boiler body is provided with the water storage chamber, the combustor be fixed in the one end of boiler body and with the inside intercommunication of boiler body, the energy-saving appliance subassembly includes energy-saving appliance, moisturizing pipe and inlet tube, the rear end of boiler body is provided with back smoke box, the one end of energy-saving appliance is passed through the flue with back smoke box intercommunication, the other end of energy-saving appliance passes through the flue with boiler smoke window intercommunication, the moisturizing pipe with the inside intercommunication of energy-saving appliance, the one end of inlet tube with the inside intercommunication of energy-saving appliance, the other end of inlet tube with the water storage chamber intercommunication, the boiler switch board is fixed in the surface of base, the surface of moisturizing pipe is provided with moisturizing flowmeter, The water replenishing pressure measuring device comprises a water replenishing pressure measuring meter and a water replenishing control valve, wherein a water inlet flow meter, a water inlet pressure measuring meter and a water inlet control valve are arranged on the surface of a water inlet pipe, and the water replenishing flow meter, the water replenishing pressure measuring meter, the water inlet flow meter, the water inlet pressure measuring meter, the water inlet control valve and the water replenishing control valve are communicated with a boiler control cabinet.

2. A horizontal gas-to-steam boiler according to claim 1, wherein: the boiler body includes barrel, combination stove courage and a back combustion chamber section of thick bamboo, the water storage chamber set up in the inside of barrel, the combination stove courage with a back combustion chamber section of thick bamboo all set up in the inside in water storage chamber, the inside of combination stove courage is provided with the combustion chamber, the inside back combustion chamber that is provided with of back combustion chamber section of thick bamboo, the combustion chamber communicate in back combustion chamber with the combustor, back combustion chamber with back smoke box intercommunication.

3. A horizontal gas-to-steam boiler according to claim 1, wherein: the boiler body further comprises a two-return-stroke threaded smoke pipe and a three-return-stroke smoke pipe, the two-return-stroke threaded smoke pipe and the three-return-stroke smoke pipe are located in the water storage cavity, the two-return-stroke smoke pipe is located between the three-return-stroke smoke pipe and the combined furnace pipe, a front smoke box is arranged at the front end of the cylinder body, one end of the two-return-stroke threaded smoke pipe is communicated with the back combustion chamber, the other end of the two-return-stroke threaded smoke pipe is communicated with the front smoke box, one end of the three-return-stroke smoke pipe is communicated with the front smoke box, and the other end of the three-return-stroke smoke pipe is communicated with the back smoke box.

4. A horizontal gas-to-steam boiler according to claim 3, wherein: the inner wall from inside to outside of preceding smoke box has set gradually first flame retardant coating, first wire mesh layer and first insulating layer.

5. A horizontal gas-to-steam boiler according to claim 2, wherein: the utility model discloses a cigarette case, including barrel, front cover surface, preceding cigarette case door, panel, first fire resistive layer, second steel wire mesh layer, second insulating layer and panel, be provided with on the panel with the perpendicular week board that sets up of panel, the week board is located week side of second insulating layer, the week board with be provided with the lath between the second fire resistive layer, the surface of panel is provided with the handle.

6. A horizontal gas-to-steam boiler according to claim 2, wherein: the anti-explosion door is arranged on the rear cover of the barrel body and comprises a cement layer, a conical plate layer, a third fire-resistant layer, a third steel wire mesh layer, a third heat-insulating layer and a sliding plate which are sequentially arranged from inside to outside, a rear passage opening is formed in the end part of the afterburning chamber barrel, a smoke containing opening is formed in the center of the cement layer, and the cement layer is inserted into the rear passage opening and is in sliding connection with the inner wall of the rear passage opening.

7. A horizontal gas-to-steam boiler according to claim 6, wherein: the explosion door further comprises a steel pipe, a pressure spring, a bolt and a gasket, the steel pipe penetrates through the sliding plate and is fixed on the surface of the rear cover of the barrel, the steel pipe is in sliding connection with the sliding plate, the bolt is in threaded connection with the end portion of the steel pipe, the gasket is sleeved on the surface of the bolt, the pressure spring is arranged on the surface of the steel pipe, one end of the pressure spring abuts against the sliding plate, and the other end of the pressure spring abuts against the gasket.

8. A horizontal gas-to-steam boiler according to claim 2, wherein: the steam-water separator is arranged in the water storage cavity and comprises a gas homogenizing hole plate, a sealing plate and an air outlet pipe, the sealing plate is vertically fixed on the inner wall of the barrel, the gas homogenizing hole plate is horizontally arranged at the lower end of the sealing plate, the air outlet pipe is fixed on the gas homogenizing hole plate, a steam valve is arranged at the top of the barrel, one end of the air outlet pipe is communicated with the water storage cavity, and the other end of the air outlet pipe is communicated with the steam valve.

9. The horizontal gas-steam boiler according to any one of claims 1 to 8, wherein: the economizer comprises an economizer shell, a plurality of finned tubes and a plurality of U-shaped tubes, wherein a flue gas inlet and a flue gas outlet are formed in two ends of the economizer shell respectively, the flue gas inlet is communicated with the rear smoke box through a flue, the flue gas outlet is communicated with the boiler smoke window through the flue, the finned tubes are horizontally arranged in the economizer shell, the finned tubes are respectively communicated with the water replenishing pipe and the water inlet pipe, and the U-shaped tubes are located outside the economizer shell and communicated with the rest adjacent finned tubes.

10. A horizontal gas-to-steam boiler according to claim 9, wherein: the top of the energy saver casing is provided with an ash removal port communicated with the inside of the energy saver casing, the ash removal port is provided with a cover plate, and the bottom of the energy saver casing is provided with an energy saver sewage outlet.