CN220229557U - Small-sized gas atmospheric pressure water heating boiler - Google Patents

Abstract

The utility model discloses a small-sized gas normal-pressure hot water boiler, which relates to the technical field of hot water boilers and comprises a burner, a base, a boiler barrel, a shell, a boiler liner and a heat exchange tube, wherein the shell is fixed on the base, the boiler liner is positioned in the boiler barrel, the burner is fixedly arranged on the outer wall of the boiler barrel, the shell is positioned below the boiler barrel, one side of the interior of the shell is provided with a rear smoke-turning chamber, the other side of the interior of the shell is provided with a front smoke-turning chamber, the front smoke-turning chamber and the rear smoke-turning chamber are communicated through the heat exchange tube, the bottom of the boiler liner is provided with a flow tube, the flow tube is communicated with the rear smoke-turning chamber, one side of the shell is provided with a chimney, one side of the top of the boiler barrel is provided with a normal-pressure mouth tube, and the other side of the top of the boiler barrel is provided with a water outlet tube. The utility model can greatly prolong the contact time of the flue gas and the heat exchange tube and improve the utilization efficiency of heat in the flue gas.

Description

Small-sized gas atmospheric pressure water heating boiler

Technical Field

The utility model relates to the technical field of hot water boilers, in particular to a small-sized gas normal-pressure hot water boiler.

Background

The hot water boiler includes electric hot water boiler, oil burning hot water boiler, gas burning hot water boiler, coal burning hot water boiler, etc. the hot water boiler is one kind of heat energy equipment to heat water to rated temperature with heat energy released by burning fuel or other heat energy, such as electric energy, solar energy, etc.

There are many kinds of hot water boiler, one of them is small-size gas ordinary pressure hot water boiler, and the heat transfer pipe of current small-size gas ordinary pressure hot water boiler is located the top of drum generally, and the flue gas that produces when the boiler burns can be discharged from the chimney fast, and heat exchange time is shorter, leads to the heat utilization ratio of boiler lower, therefore has the room of waiting to improve.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a small-sized gas normal-pressure hot water boiler. The heat exchange tube has the advantages that the contact time of the flue gas and the heat exchange tube can be greatly prolonged, and the utilization efficiency of heat in the flue gas is improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a small-size gas normal pressure hot water boiler, includes combustor, base, drum, shell, stove courage and heat exchange tube, the shell is fixed on the base, the stove courage is located the inside of drum, combustor fixed mounting is on the outer wall of drum, the shell is located the below of drum, the back changes the smoke chamber has been seted up to the inside one side of shell, the front changes the smoke chamber has been seted up to the inside opposite side of shell, be linked together through the heat exchange tube between front changes the smoke chamber and the back changes the smoke chamber, the bottom of stove courage is provided with the runner pipe, the runner pipe is linked together with the back changes the smoke chamber, one side of shell is provided with the chimney, one side at drum top is provided with normal pressure mouth pipe, the opposite side at drum top is provided with the delivery port pipe.

The technical scheme is as follows: when the boiler is used, the burner is controlled to ignite fuel, flame sprayed out of the burner is fully combusted in the boiler furnace, then high-temperature flue gas is generated, the water in the boiler barrel can be heated, the fuel can generate flue gas at the same time, the flue gas enters the rear smoke-converting chamber and then enters the front smoke-converting chamber through the heat exchange tube, heat in the flue gas can be transferred to the water through the heat exchange tube to be heated, and finally the flue gas is discharged from the chimney.

The utility model further provides that the heat exchange tube is of a spiral structure.

The technical scheme is as follows: the contact area between the heat exchange tube and the flue gas can be increased due to the arrangement of the S-shaped structure, and the heat utilization rate is further improved.

The utility model is further arranged that the outer wall of the front smoke transfer chamber is provided with an access opening, and the inner wall of the access opening is provided with an access door.

The technical scheme is as follows: the setting of access hole can conveniently overhaul the heat exchange tube through the access hole, has improved the convenience of overhaul.

The utility model further provides that the top of the boiler barrel is provided with a lifting lug.

The technical scheme is as follows: the lifting lug is arranged, so that the boiler can be conveniently lifted by the crane to move, and the convenience of moving the boiler is improved.

The utility model is further arranged that the outer wall of the boiler barrel above the burner is provided with a fire observation hole.

The technical scheme is as follows: the setting of fire observation hole can conveniently utilize the fire observation hole to observe the inside combustion conditions of stove courage, makes things convenient for the workman to utilize the quantity of fire observation hole adjustment fuel.

The utility model further provides that an explosion-proof device is arranged on the outer wall of one end of the boiler barrel far away from the burner.

The technical scheme is as follows: the explosion-proof device can play a role in good explosion-proof effect, and improves the use safety of the boiler.

The utility model is further arranged that a drain outlet is arranged at the bottom of the shell, and a drain pipe is arranged on the inner wall of the drain outlet.

The technical scheme is as follows: the arrangement of the blow-down pipe can conveniently discharge dust in the flue gas from the blow-down outlet, so that the boiler can be cleaned conveniently.

The beneficial effects of the utility model are as follows:

1. this small-size gas normal pressure hot water boiler, during the use, the control combustor ignites fuel, combustor spun flame fully burns in the stove courage, then high temperature flue gas, can heat for the water in the drum, the fuel can produce the flue gas simultaneously, the flue gas gets into to back change the smoke room and reentry to preceding change the smoke room in through the heat exchange tube, the heat in the flue gas can be passed through the heat exchange tube and is heated water, the flue gas is discharged from the chimney at last, because the heat exchange tube is located the below of drum, can prolong the contact time of flue gas and heat exchange tube greatly, the thermal utilization efficiency in the flue gas has been improved.

2. The design of the spiral structure of the small gas normal pressure hot water boiler can increase the contact area between the heat exchange tube and the smoke, and further improve the heat utilization rate; the overhaul port can be used for conveniently overhauling the heat exchange tube, so that the overhaul convenience is improved; the lifting lug can conveniently utilize the loop wheel machine to hoist the boiler and remove, has improved the convenience that the boiler removed.

Drawings

FIG. 1 is a schematic sectional view of a small-sized gas atmospheric hot water boiler according to the present utility model;

FIG. 2 is a schematic diagram of the heat exchange tube of the small-sized gas normal pressure hot water boiler;

fig. 3 is a schematic diagram of a drum perspective structure of a small-sized gas atmospheric hot water boiler according to the present utility model.

In the figure: 1. a normal pressure mouth tube; 2. lifting lugs; 3. a water outlet pipe; 4. a fire observation hole; 5. a burner; 6. an access door; 7. a front smoke-transferring chamber; 8. a heat exchange tube; 9. a blow-down pipe; 10. a housing; 11. a base; 12. a chimney; 13. a rear smoke transferring chamber; 14. a flow pipe; 15. an explosion-proof device; 16. a boiler barrel.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1-3, the small-sized gas normal pressure hot water boiler comprises a combustor 5, a base 11, a boiler barrel 16, a shell 10, a boiler liner and a heat exchange tube 8, wherein the shell 10 is fixed on the base 11, the boiler liner is positioned in the boiler barrel 16, the combustor 5 is fixedly installed on the outer wall of the boiler barrel 16, the shell 10 is positioned below the boiler barrel 16, a rear smoke-turning chamber 13 is formed in one side of the interior of the shell 10, a front smoke-turning chamber 7 is formed in the other side of the interior of the shell 10, the front smoke-turning chamber 7 is communicated with the rear smoke-turning chamber 13 through the heat exchange tube 8, a flow tube 14 is arranged at the bottom of the boiler liner, the flow tube 14 is communicated with the rear smoke-turning chamber 13, a chimney 12 is arranged on one side of the shell 10, a normal pressure mouth tube 1 is arranged on one side of the top of the boiler barrel 16, and a water outlet tube 3 is arranged on the other side of the top of the boiler barrel 16.

Specifically, the heat exchange tube 8 has a spiral structure. The design of the spiral structure can increase the contact area between the heat exchange tube 8 and the flue gas, and further improves the heat utilization rate.

Specifically, the outer wall of the front smoke-turning chamber 7 is provided with an access opening, and the inner wall of the access opening is provided with an access door 6. The setting of access hole can conveniently overhaul heat exchange tube 8 through the access hole, has improved the convenience of overhaul.

Specifically, the top of the drum 16 is provided with lifting lugs 2. The lifting lug 2 is arranged, so that the boiler can be conveniently lifted by the crane to move, and the convenience of moving the boiler is improved.

Specifically, the outer wall of the boiler barrel 16 above the burner 5 is provided with a fire observation hole 4. The fire observation holes 4 are arranged, so that the combustion condition inside the furnace can be conveniently observed by using the fire observation holes 4, and the consumption of fuel can be conveniently adjusted by workers by using the fire observation holes 4.

Specifically, the outer wall of the end of the drum 16 remote from the burner 5 is provided with an explosion-proof device 15. The arrangement of the explosion-proof device 15 can play a good role in explosion prevention, and improves the use safety of the boiler.

Specifically, the bottom of shell 10 has seted up the drain, and the inner wall of drain is provided with blow off pipe 9. The arrangement of the blow-down pipe 9 can conveniently discharge dust in the flue gas from the blow-down outlet, and the boiler is conveniently cleaned.

Working principle: when the boiler is used, the burner is controlled to ignite fuel, flame sprayed out by the burner is fully combusted in the boiler furnace, then high-temperature flue gas is generated, water in the boiler barrel 16 can be heated, the fuel can generate flue gas at the same time, the flue gas enters the rear smoke-converting chamber 13 and then enters the front smoke-converting chamber 7 through the heat exchange tube 8, heat in the flue gas can be transferred to water through the heat exchange tube 8 to be heated, and finally the flue gas is discharged from the chimney 12, and as the heat exchange tube 8 is positioned below the boiler barrel 16, the contact time of the flue gas and the heat exchange tube 8 can be greatly prolonged, and the utilization efficiency of heat in the flue gas is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The utility model provides a small-size gas normal pressure hot water boiler, includes combustor (5), base (11), drum (16), shell (10), stove courage and heat exchange tube (8), shell (10) are fixed on base (11), the stove courage is located the inside of drum (16), combustor (5) fixed mounting is on the outer wall of drum (16), a serial communication port, shell (10) are located the below of drum (16), back commentaries on classics smoke chamber (13) have been seted up to one side of shell (10) inside, preceding commentaries on classics smoke chamber (7) have been seted up to the opposite side of shell (10) inside, be linked together through heat exchange tube (8) between preceding commentaries on classics smoke chamber (7) and the back commentaries on classics smoke chamber (13), the bottom of stove courage is provided with runner pipe (14), runner pipe (14) are linked together with back commentaries on classics smoke chamber (13), one side of shell (10) is provided with chimney (12), one side at drum (16) top is provided with mouth pipe (1), normal pressure pipe (3) are provided with delivery port (16).

2. A small gas atmospheric hot water boiler according to claim 1, characterized in that the heat exchange tube (8) is of spiral construction.

3. The small gas normal pressure hot water boiler according to claim 2, wherein the outer wall of the front rotary smoke chamber (7) is provided with an access opening, and the inner wall of the access opening is provided with an access door (6).

4. A small gas atmospheric hot water boiler according to claim 1, characterized in that the top of the drum (16) is provided with lifting lugs (2).

5. The small gas normal pressure hot water boiler according to claim 4, wherein the outer wall of the boiler barrel (16) above the burner (5) is provided with a fire observation hole (4).

6. A small gas atmospheric hot water boiler as claimed in claim 5, wherein the outer wall of the end of the drum (16) remote from the burner (5) is provided with an explosion-proof means (15).

7. The small gas normal pressure hot water boiler according to claim 1, wherein a drain outlet is provided at the bottom of the housing (10), and a drain pipe (9) is provided at the inner wall of the drain outlet.