CN210069814U

CN210069814U - Gas boiler with expansion joint

Info

Publication number: CN210069814U
Application number: CN201920479118.5U
Authority: CN
Inventors: 张家良
Original assignee: Bowa Shanghai Bellows Technology Co Ltd
Current assignee: Bowa Shanghai Bellows Technology Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-02-14
Anticipated expiration: 2029-04-10

Abstract

A gas boiler with an expansion joint comprises a burner, a supporting seat, a burner inner container and an air inlet pipeline; the combustor is installed on the supporting seat, be equipped with combustor flange gasket between combustor and the supporting seat, the combustor inner bag is including the hard pipeline section of first inner bag that connects gradually, first inner bag expansion joint, the hard pipeline section of second inner bag, the second inner bag expansion joint, the hard pipeline section of third inner bag and exhaust flange, the head end of the hard pipeline section of first inner bag is installed on the supporting seat, the intake pipe that the pipeline of admitting air connects gradually, the expansion joint and the flange of admitting air admit air admits air, the one end of intake pipe is connected on the hard pipeline section of second inner bag, it fills up to admit air to be equipped with the flange gasket that admits air between expansion joint and the intake pipe and between expansion joint and the flange. The expansion joint enables the combustor liner and the air inlet pipeline to absorb thermal stress impact generated in the heating and cooling processes, avoids damage caused by thermal stress, plays a role in protecting the gas boiler, and prolongs the service life.

Description

Gas boiler with expansion joint

Technical Field

The utility model relates to a gas boiler technical field especially relates to a take gas boiler of expansion joint.

Background

Common gas boiler all is the combustion chamber of straight tube type inner bag, deformation when unable absorption cold and hot transform to produce the damage because of thermal stress easily in the use, reduced life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, a take gas boiler of expansion joint is provided.

The purpose of the utility model can be realized by the following technical scheme: a gas boiler with an expansion joint comprises a burner, a supporting seat, a burner inner container and an air inlet pipeline; the combustor is arranged on the supporting seat through bolts, a combustor flange sealing gasket is arranged between the combustor and the supporting seat, the combustor liner comprises a first liner hard pipe section, a first liner expansion joint, a second liner hard pipe section, a second liner expansion joint, a third liner hard pipe section and an exhaust flange which are sequentially welded and connected, the head end of the first inner container hard pipe section is arranged on the supporting seat through a bolt, the air inlet pipeline comprises an air inlet pipe, an air inlet expansion joint and an air inlet flange which are connected in sequence, one end of the air inlet pipe is welded and connected with a second inner container hard pipe section of the inner container of the combustor, the other end of the air inlet pipe and two ends of the air inlet expansion joint are respectively provided with a flange structure, two ends of the air inlet expansion joint are respectively connected with the air inlet pipe and an air inlet flange, and air inlet flange sealing gaskets are respectively arranged between the air inlet expansion joint and the air inlet pipe and between the air inlet expansion joint and the air inlet flange.

Furthermore, the first inner container expansion joint and the second inner container expansion joint are respectively made by one layer or more than two layers of stainless steel pipes which are sleeved, welded and hydraulically formed.

Further, a monitoring system is integrated on the combustor.

Further, the combustor inner container is arranged along the horizontal direction, and the air inlet pipeline is arranged along the vertical direction.

Further, the diameter of the tail part of the third inner container hard tube section is reduced.

Compared with the prior art, the beneficial effects of the utility model are that: through having increased two expansion joints on the combustor inner bag, an expansion joint has been increased on the intake pipe way, make combustor inner bag and air inlet pipeline can absorb the thermal stress that produces among heating and the cooling process and strike, avoid the junction of combustor inner bag and air inlet pipeline premature failure because of thermal stress's influence, play the effect of protection gas boiler, the life of product has been improved, can be applied to under the relatively abominable environment of operating mode, and the equipment, it is comparatively convenient to maintain. The utility model provides a monitoring system has still been integrated to the combustor, can realize data such as real-time supervision flame, pressure and temperature, ensures gas boiler safe normal operating.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a cross-sectional view of the joint of the burner, the support seat and the burner liner of the present invention.

Fig. 5 is a schematic structural diagram of an air intake pipeline in the present invention.

The parts in the figures are numbered as follows:

1 burner

2 support seat

3 first inner container hard pipe section

4 first inner container expansion joint

5 second inner container hard pipe section

6 second inner container expansion joint

7 hard pipe section of third inner container

8 exhaust flange

9 air inlet pipe

10 air inlet expansion joint

11 air inlet flange

12 burner flange gasket

13 intake flange gasket.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.

Referring to fig. 1 to 3, a gas boiler with an expansion joint comprises a burner 1, a support base 2, a burner liner and an air inlet pipeline.

Referring to fig. 4, the burner 1 is mounted on the support base 2 by bolts, and a burner flange gasket 12 is disposed between the burner 1 and the support base 2. The burner 1 is integrated with a monitoring system, so that data such as flame, pressure, temperature and the like can be monitored in real time, and the safe and normal operation of the gas boiler is ensured.

Referring to fig. 1 and 2, the combustor liner comprises a first liner hard pipe section 3, a first liner expansion joint 4, a second liner hard pipe section 5, a second liner expansion joint 6, a third liner hard pipe section 7 and an exhaust flange 8 which are sequentially welded, and the head end of the first liner hard pipe section 3 is mounted on a support seat 2 through bolts. The first inner container expansion joint 4 and the second inner container expansion joint 6 are respectively formed by hydraulic forming of one or more than two layers of metal pipes which are sleeved and welded, the inner container expansion joint is an elastic compensation element which can freely stretch out and draw back, can absorb vibration caused by machinery, can compensate axial displacement and radial displacement caused by thermal expansion in a gas boiler, and avoids damage to pipelines of the inner container of the combustor due to thermal stress. The tail part of the third inner container hard pipe section 7 is reduced in diameter. The exhaust flange 8 facilitates connection, replacement and maintenance of the combustor liner. The burner liner may be disposed in a horizontal orientation, as shown in fig. 2. In addition, the material of the combustor inner container can adopt high temperature resistant stainless steel, is suitable for high temperature occasions such as gas-fired boilers, and enhances the high temperature resistance.

Referring to fig. 5, the air inlet pipeline includes an air inlet pipe 9, an air inlet expansion joint 10 and an air inlet flange 11 which are connected in sequence, one end of the air inlet pipe 9 is welded on the second inner container hard pipe section 5 of the inner container of the combustor, the other end of the air inlet pipe 9 and two ends of the air inlet expansion joint 10 are respectively provided with a flange structure, two ends of the air inlet expansion joint 10 are respectively connected with the air inlet pipe 9 and the air inlet flange 11 through flanges, and air inlet flange sealing gaskets 13 are respectively arranged between the air inlet expansion joint 10 and the air inlet pipe 9 and between the air inlet expansion joint 10 and the air inlet flange 11. The air inlet flange 11 facilitates connection, replacement and maintenance of an air inlet pipeline. The air inlet line may be arranged in a vertical direction, see fig. 2.

It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.

Claims

1. A gas boiler with an expansion joint is characterized by comprising a combustor, a supporting seat, a combustor liner and an air inlet pipeline; the combustor is arranged on the supporting seat through bolts, a combustor flange sealing gasket is arranged between the combustor and the supporting seat, the combustor liner comprises a first liner hard pipe section, a first liner expansion joint, a second liner hard pipe section, a second liner expansion joint, a third liner hard pipe section and an exhaust flange which are sequentially welded and connected, the head end of the first inner container hard pipe section is arranged on the supporting seat through a bolt, the air inlet pipeline comprises an air inlet pipe, an air inlet expansion joint and an air inlet flange which are connected in sequence, one end of the air inlet pipe is welded and connected with a second inner container hard pipe section of the inner container of the combustor, the other end of the air inlet pipe and two ends of the air inlet expansion joint are respectively provided with a flange structure, two ends of the air inlet expansion joint are respectively connected with the air inlet pipe and an air inlet flange, and air inlet flange sealing gaskets are respectively arranged between the air inlet expansion joint and the air inlet pipe and between the air inlet expansion joint and the air inlet flange.

2. The gas boiler with expansion joint as claimed in claim 1, wherein said first and second inner bladder expansion joints are made by one or more layers of stainless steel tube which are sleeved and welded by hydraulic forming.

3. The gas boiler with expansion joint of claim 1, wherein a monitoring system is integrated on the burner.

4. The gas boiler with an expansion joint as recited in claim 1, wherein said burner inner is disposed in a horizontal direction, and said air intake duct is disposed in a vertical direction.

5. The gas boiler with expansion joint as claimed in claim 1, wherein the tail diameter of the third inner container hard tube section is reduced.