Horizontal gas-fired boiler

Abstract

The utility model discloses a horizontal type gas-fired boiler which comprises a machine box, a gas-fired boiler body and a gas-fired boiler body. The combustion chamber is horizontally arranged in the case; the combustor is communicated with one end of the combustion chamber; the reversal chamber communicates with the other end of the combustion chamber; the heat exchange pipeline is arranged above the combustion chamber and is connected with the reversal chamber; the backflow pipeline comprises a vertical pipe and a transverse pipe, the vertical pipe is communicated with the outlet end of the heat exchange pipeline, the transverse pipe is communicated with the side wall of the lower end of the vertical pipe and a fan on the burner, and an activated carbon bag located above the vertical pipe is arranged in the vertical pipe. The tail gas treatment device has the following advantages and effects that the activated carbon bag is additionally arranged in the backflow pipeline, residual moisture in tail gas is absorbed, it is guaranteed that air flowing back to the combustion machine and the combustion chamber again is in a dry state, and therefore it can be guaranteed that unburned fuel gas in the tail gas can be fully burned; and the influence on a combustion chamber or a heat exchange pipeline can be reduced, the workload of the boiler is reduced, and the service life of the boiler is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of gas boilers, in particular to a horizontal gas boiler. Background Art

[0002] A gas boiler refers to a boiler whose fuel is gas. Compared with oil boilers and electric boilers, gas boilers are the most economical, so most people choose gas boilers as boiler equipment for steam, heating and bathing.

[0003] Chinese patent CN217178890U discloses a boiler with a heat exchange function for outdoor use, wherein a heat exchange chamber for filling a heat exchange medium is arranged inside the boiler, a combustion furnace and a heat exchange pipe are arranged inside the heat exchange chamber, the combustion furnace is located at the bottom of the heat exchange chamber, the inlet end of the heat exchange pipe is connected with the combustion furnace, and the heat exchange pipe is connected with the outside after passing through the heat exchange chamber; a control device is installed on the combustion furnace, and an air inlet and a gas pipe are arranged on the control device, the outlet end of the heat exchange pipe is fixed and connected with a return pipe, and the end of the return pipe away from the heat exchange pipe is connected with the control device, and the control device is used to control the ratio of gas, air and flue gas input into the combustion furnace.

[0004] When the boiler in the related technology is in use, a part of the flue gas is drawn back into the combustion furnace through a reflux pipe to adjust the gas content in the combustion furnace, thereby reducing the content of nitrogen and oxygen, reducing the amount of nitrogen oxides generated in the combustion furnace, and reducing the pollution to the environment when the boiler is working.

[0005] However, in the process of extracting flue gas through the return pipe, the flue gas contains a large amount of water vapor. If the water vapor cannot be effectively removed, it will affect the combustion chamber or the heat exchange pipe, increase the workload of the boiler, and affect the service life of the boiler, which needs to be improved. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a horizontal gas boiler which has the effect of reducing the workload of the boiler.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a horizontal gas boiler, comprising:

[0008] The chassis is horizontally arranged on the ground;

[0009] A combustion chamber, horizontally arranged in the chassis;

[0010] A burner connected to one end of the combustion chamber;

[0011] A flashback chamber connected to the other end of the combustion chamber;

[0012] A heat exchange pipe is arranged above the combustion chamber and connected to the regeneration chamber;

[0013] The return pipe includes a vertical pipe and a horizontal pipe, wherein the vertical pipe is connected to the outlet end of the heat exchange pipe, and the horizontal pipe is connected to the lower end side wall of the vertical pipe and the fan on the burner. The vertical pipe is provided with an activated carbon bag located above the vertical pipe.

[0014] In a preferred example, the utility model can be further configured as follows: a protective net is horizontally arranged in the vertical tube and is located above the activated carbon bag; a support rod is vertically slidably connected to the protective net; a locking mechanism for fixing the support rod is arranged on the vertical tube; a supporting net for supporting the activated carbon plate is arranged on the support rod; and a cover plate covering the lower end of the vertical tube is arranged at the lower end.

[0015] In a preferred example, the utility model can be further configured as follows: the locking mechanism includes a locking rod, a pull ring and a spring, the locking rod is horizontally slidably connected to the vertical tube, the upper end side wall of the support rod is provided with a locking hole for the locking rod to be inserted, the pull ring is provided at the outer end of the locking rod, the spring is sleeved on the outer wall of the locking rod, and is located between the pull ring and the outer wall of the vertical tube.

[0016] In a preferred example, the utility model can be further configured as follows: the side of the support rod close to the locking rod is arranged in an inclined surface, and the end of the locking rod is matched with the upper end of the support rod.

[0017] In a preferred example, the present invention can be further configured as follows: the cross section of the support rod is rectangular.

[0018] In a preferred example, the utility model can be further configured as follows: the activated carbon bag includes a pair of semicircular carbon bag bodies, and both ends of the carbon bag bodies are provided with Velcro that are bonded and fixed to each other.

[0019] In a preferred example, the utility model can be further configured as follows: a circle of sealing rings is arranged on the cover plate, and a sealing groove for the sealing ring to be embedded in the outer wall of the vertical pipe is arranged.

[0020] In a preferred example, the present invention can be further configured as follows: a handle is provided at the lower end of the cover plate.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. By adding activated carbon bags in the return pipe, the residual moisture in the tail gas is absorbed to ensure that the air returning to the burner and the combustion chamber is in a dry state, which can ensure that the unburned gas in the tail gas can be fully burned, and can also reduce the impact on the combustion chamber or heat exchange pipe, reduce the workload of the boiler, and increase the service life of the boiler;

[0023] 2. By setting up an activated carbon bag that is easy to disassemble and replace, the activated carbon bag can be easily removed and replaced to ensure sufficient absorption of residual moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment;

[0025] Figure 2 is a schematic diagram of the internal structure of an embodiment;

[0026] Figure 3 is a schematic structural diagram of a reflux pipeline in an embodiment;

[0027] Figure 4 is a schematic diagram of the internal structure of the return pipe of an embodiment;

[0028] Figure 5 Schematic diagram of the structure of the activated carbon package of the embodiment.

[0029] Figure numerals: 1. chassis; 2. combustion chamber; 3. burner; 4. backfire chamber; 5. heat exchange pipe; 6. return pipe; 61. vertical pipe; 62. horizontal pipe; 63. activated carbon bag; 631. carbon bag body; 632. Velcro; 64. protective net; 65. support rod; 66. supporting net; 67. cover plate; 671. sealing ring; 672. sealing groove; 68. handle; 7. locking mechanism; 71. locking rod; 72. pull ring; 73. spring; 74. locking hole. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1 , Figure 2 As shown, a horizontal gas boiler includes a casing 1, a combustion chamber 2, a burner 3, a regenerative chamber 4, a heat exchange pipe 5 and a return pipe 6.

[0032] like Figure 1 , Figure 2 As shown, the chassis 1 is horizontally arranged on the ground, the combustion chamber 2 is horizontally arranged in the chassis 1, the burner 3 is connected to one end of the combustion chamber 2, and the re-entry chamber 4 is connected to the other end of the combustion chamber 2. The heat exchange pipe 5 is arranged above the combustion chamber 2 and connected to the re-entry chamber 4, and the return pipe 6 is connected to the outlet end of the heat exchange pipe 5 and the fan on the burner 3.

[0033] When the gas boiler is working, the gas is sent into the combustion chamber 2 through the burner 3 for combustion, and then the flue gas enters the reburning chamber 4 to continue burning, and is transported to the return pipe 6 through the heat exchange pipe 5, so that the exhaust gas re-enters the fan on the burner 3 after being cooled, and enters the combustion chamber 2 again for full combustion, thereby reducing the formation of nitrogen oxides and reducing pollution to the environment.

[0034] like Figure 2 , Figure 3 , Figure 4 As shown, the return pipe 6 includes a vertical pipe 61 and a horizontal pipe 62. The vertical pipe 61 is connected to the outlet end of the heat exchange pipe 5, and the horizontal pipe 62 is connected to the lower end side wall of the vertical pipe 61 and the fan on the burner 3. An activated carbon bag 63 is arranged above the vertical pipe 61.

[0035] By adding an activated carbon bag 63 in the return pipe 6, the residual moisture in the exhaust gas is absorbed to ensure that the air flowing back to the burner 3 and the combustion chamber 2 is in a dry state, which can ensure that the unburned fuel gas in the exhaust gas can be fully burned, and can also reduce the impact on the combustion chamber 2 or the heat exchange pipe 5, reduce the workload of the boiler, and increase the service life of the boiler.

[0036] like Figure 3 , Figure 4 As shown, a protective net 64 is horizontally arranged in the vertical tube 61 and is located above the activated carbon bag 63. A support rod 65 is vertically slidably connected to the protective net 64. The cross section of the support rod 65 is rectangular to ensure that the support rod 65 can slide vertically stably without rotating. A supporting net 66 for supporting the activated carbon plate is arranged on the support rod 65, and a cover plate 67 covering the lower end of the vertical tube 61 is arranged at the lower end.

[0037] like Figure 3 , Figure 4 As shown, a locking mechanism 7 for fixing the support rod 65 is provided on the vertical tube 61, and the locking mechanism 7 includes a locking rod 71, a pull ring 72 and a spring 73. The locking rod 71 is horizontally slidably connected to the vertical tube 61, and a locking hole 74 for inserting the locking rod 71 is provided on the upper side wall of the support rod 65. The pull ring 72 is provided at the outer end of the locking rod 71, and the spring 73 is sleeved on the outer wall of the locking rod 71 and is located between the pull ring 72 and the outer wall of the vertical tube 61.

[0038] like Figure 3 , Figure 4 As shown, the side of the support rod 65 close to the locking rod 71 is arranged in an inclined surface, and the end of the locking rod 71 is matched with the upper end of the support rod 65.

[0039] When the activated carbon bag 63 needs to be replaced, pull the pull ring 72 to drive the locking rod 71 to slide outward, so that the locking rod 71 disengages from the locking hole 74. At this time, under the action of the gravity of the activated carbon bag 63, the activated carbon bag 63 and the supporting net 66 automatically move downward until the supporting net 66 and the activated carbon bag 63 slide to the outside of the vertical pipe 61. Then, the activated carbon bag 63 is removed and a new activated carbon bag 63 is installed on the supporting net 66.

[0040] Then push the support net 66 to drive the activated carbon bag 63 and the support rod 65 to move upward. At this time, under the action of the inclined surface on the upper end of the locking rod 71 and the inclined surface on the locking rod 71, the support rod 65 automatically presses the locking rod 71 to slide outward. Until the activated carbon bag 63 hits the protective net 64, the locking rod 71 is aligned with the locking hole 74. At this time, the spring 73 pulls the locking rod 71 to plug the locking hole 74, so that the support rod 65 is plugged and the activated carbon bag 63 is fixed. At the same time, the cover plate 67 is buckled on the lower end of the vertical pipe 61 to achieve the blocking of the lower end of the vertical pipe 61, and the replacement of the activated carbon bag 63 is completed.

[0041] like Figure 4 , Figure 5 As shown, the activated carbon bag 63 includes a pair of semicircular carbon bag bodies 631, and Velcro 632 for bonding and fixing to each other is provided at both ends of the carbon bag body 631. By providing two semicircular carbon bag bodies 631 together to form the activated carbon bag 63, and using Velcro 632 for bonding and fixing, the activated carbon bag 63 can be quickly installed and conveniently replaced.

[0042] like Figure 4 , Figure 5 As shown, a circle of sealing ring 671 is provided on the cover plate 67, and a sealing groove 672 is provided on the outer wall of the vertical tube 61 for the sealing ring 671 to be embedded. By providing the cooperation of the sealing ring 671 and the sealing groove 672, the sealing between the cover plate 67 and the vertical tube 61 is increased to prevent air leakage. A handle 68 is provided at the lower end of the cover plate 67 to facilitate pulling out the activated carbon bag 63 from the vertical tube 61 and replacing it.

[0043] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A horizontal gas boiler, characterized in that: include, A chassis (1) is horizontally arranged on the ground; A combustion chamber (2) is horizontally arranged in the casing (1); A burner (3) connected to one end of the combustion chamber (2); A reburning chamber (4) connected to the other end of the combustion chamber (2); A heat exchange pipe (5) is arranged above the combustion chamber (2) and connected to the regenerative chamber (4); The return pipe (6) comprises a vertical pipe (61) and a horizontal pipe (62), wherein the vertical pipe (61) is connected to the outlet end of the heat exchange pipe (5), and the horizontal pipe (62) is connected to the lower end side wall of the vertical pipe (61) and the fan on the burner (3), and an activated carbon bag (63) is arranged above the vertical pipe (61).

2. A horizontal gas boiler according to claim 1, characterized in that: A protective net (64) is horizontally arranged in the vertical tube (61) and is located above the activated carbon bag (63). A support rod (65) is vertically slidably connected to the protective net (64). A locking mechanism (7) for fixing the support rod (65) is arranged on the vertical tube (61). A supporting net (66) for supporting the activated carbon bag (63) is arranged on the support rod (65), and a cover plate (67) covering the lower end of the vertical tube (61) is arranged at the lower end.

3. A horizontal gas boiler according to claim 2, characterized in that: The locking mechanism (7) comprises a locking rod (71), a pull ring (72) and a spring (73); the locking rod (71) is horizontally slidably connected to the vertical tube (61); the upper side wall of the support rod (65) is provided with a locking hole (74) for the locking rod (71) to be inserted; the pull ring (72) is provided at the outer end of the locking rod (71); the spring (73) is sleeved on the outer wall of the locking rod (71) and is located between the pull ring (72) and the outer wall of the vertical tube (61).

4. A horizontal gas boiler according to claim 3, characterized in that: The side of the support rod (65) close to the locking rod (71) is arranged in an inclined surface, and the end of the locking rod (71) fits with the upper end of the support rod (65).

5. A horizontal gas boiler according to claim 4, characterized in that: The cross section of the support rod (65) is rectangular.

6. A horizontal gas boiler according to claim 2, characterized in that: The activated carbon bag (63) comprises a pair of semicircular carbon bag main bodies (631), and two ends of the carbon bag main bodies (631) are provided with Velcro (632) that are bonded and fixed to each other.

7. A horizontal gas boiler according to claim 2, characterized in that: The cover plate (67) is provided with a circle of sealing rings (671), and the outer wall of the vertical pipe (61) is provided with a sealing groove (672) for the sealing ring (671) to be embedded.

8. A horizontal gas boiler according to claim 7, characterized in that: A handle (68) is provided at the lower end of the cover plate (67).

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