CN211605289U

CN211605289U - Combustor and solid oxide fuel cell system

Info

Publication number: CN211605289U
Application number: CN201921375963.4U
Authority: CN
Inventors: 张一�; 王洋
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-09-29
Anticipated expiration: 2029-08-22

Abstract

The application discloses combustor and solid oxide fuel cell system, wherein, the combustor includes the combustor body, still includes thermal-insulated insulation can, the combustor body seal set up in the thermal-insulated insulation can, be used for the evacuation in the thermal-insulated insulation can. Because the coefficient of thermal conductivity of the heat insulation and heat preservation box after vacuumizing is zero, compared with the existing method that the heat insulation blanket and heat insulation powder are filled outside the combustor, the heat insulation and heat preservation effect is better.

Description

Combustor and solid oxide fuel cell system

Technical Field

The utility model relates to a solid oxide fuel cell technical field, in particular to combustor. The utility model discloses still relate to a solid oxide fuel cell system who contains this combustor.

Background

A Solid Oxide Fuel Cell (SOFC) is a high-temperature Fuel Cell, and its Fuel source is increased by high-temperature operation, and SOFC can use carbon Fuel such as methane, gasoline, and diesel oil to generate electricity. The SOFC pile needs to be operated under high-temperature conditions, and auxiliary components such as a heat exchanger, a combustor, a reformer, a steam generator and the like interacting with the SOFC pile also need to be operated under high-temperature conditions, so that the whole system reaches a thermodynamic equilibrium.

The main effect of combustor is the certain fuel of burning, for preheating of air, fuel and steam reforming and galvanic pile reaction etc. provide the heat source, can aggravate the heat dissipation after its surface contacts with the external world to can reduce thermal efficiency, the high temperature of self can be through thermal radiation and convection current to other parts on every side, influence the performance of other parts, and then influence entire system's normal operating. The existing heat preservation measures of the gas burner only fill heat insulation materials (common super heat insulation blankets and heat insulation powder) with low heat conductivity coefficients around the burner, but the heat preservation effect is not ideal.

Disclosure of Invention

In view of this, an object of the present invention is to provide a burner to improve the heat insulation effect.

Another object of the present invention is to provide a solid oxide fuel cell system comprising the burner, so as to improve the thermal insulation effect of the burner and ensure the normal operation of the system.

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

the burner comprises a burner body and a heat insulation and preservation box, wherein the burner body is arranged in the heat insulation and preservation box in a sealing mode, and the heat insulation and preservation box is used for vacuumizing.

Preferably, in the above burner, the heat-insulated cabinet is a quartz box.

Preferably, in the above burner, the heat-insulated cabinet is provided with a vacuum-pumping port.

Preferably, in the above burner, the stack cathode tail gas inlet pipe, the stack anode tail gas outlet pipe, the stack anode circulating tail gas inlet pipe, the natural gas inlet pipe and the spark plug of the burner are all hermetically extended out of the heat insulation and preservation box.

Preferably, in the above burner, the inner wall of the heat insulation and preservation box is provided with a heat insulation layer.

Preferably, in the burner, the heat insulating layer is high-temperature silver paint.

Preferably, in the above burner, the heat-insulating thermal insulation box is a rectangular box.

The utility model also provides a solid oxide fuel cell system, including the combustor, the combustor be as above arbitrary any the combustor.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an among the combustor, the sealed setting of combustor body is in thermal-insulated insulation can, and thermal-insulated insulation can evacuation. Because the coefficient of heat conductivity of the heat insulation and heat preservation box after vacuumizing is zero, compared with the existing method that the heat insulation blanket and the heat insulation powder are filled outside the combustor, the heat insulation and heat preservation effect is better, in addition, the trouble of filling the heat insulation blanket and the heat insulation powder is avoided, and the harm to the human health is reduced because the heat insulation powder is not adopted.

The utility model provides a solid oxide fuel cell system has adopted the combustor in this application, consequently, has better thermal-insulated heat preservation effect, reduces the influence to parts around the combustor, has guaranteed the normal operating of system.

Drawings

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

Fig. 1 is a schematic structural diagram of a burner according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a burner at another angle according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a burner according to an embodiment of the present invention.

Wherein, 1 is a galvanic pile cathode tail gas inlet pipe, 2 is a heat insulation incubator, 3 is an exhaust pipe, 4 is a galvanic pile anode circulation tail gas inlet pipe, 5 is a natural gas inlet pipe, 6 is a burner body, 7 is a spark plug, and 8 is a vacuumizing interface.

Detailed Description

The core of the utility model is to provide a combustor, improved thermal-insulated heat preservation effect.

The utility model also provides a solid oxide fuel cell system who contains this combustor, improved the thermal-insulated heat preservation effect of combustor, guaranteed the normal operating of system.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a burner, including a burner body 6 and a heat insulation and preservation box 2, wherein the burner body 6 is hermetically disposed in the heat insulation and preservation box 2, and the heat insulation and preservation box 2 is used for vacuum pumping.

When the burner is used, the heat insulation and preservation box 2 is vacuumized, and the heat conductivity coefficient of the vacuumized heat insulation and preservation box 2 is zero, so that the burner body 6 is hermetically arranged in the vacuum heat insulation and preservation box 2, and compared with the existing method that a heat insulation blanket and heat insulation powder are filled outside the burner, the burner has better heat insulation and preservation effects. In addition, the trouble of filling the heat insulation blanket and the heat insulation powder is avoided, and the heat insulation powder is not adopted, so that the harm to the human health is reduced, the hidden danger that the silver paint coated on the outer surface of the combustor body 6 is easy to sinter does not exist, and the reliability is higher. The heat insulation and preservation box 2 can realize function and structure modularization and is beneficial to batch production.

Further, in this embodiment, the heat insulation and preservation box 2 is a quartz box, and the quartz box is made of quartz, so that the heat insulation effect is better. Of course, the heat insulation and preservation box 2 may be made of metal or the like.

Specifically, the heat insulation and preservation box 2 is provided with a vacuumizing interface 8, and a vacuum pump is connected with the vacuumizing interface 8 to complete vacuumizing operation.

Further, in the present embodiment, the stack cathode tail gas inlet pipe 1, the exhaust pipe 3, the stack anode circulating tail gas inlet pipe 4, the natural gas inlet pipe 5 and the spark plug 7 of the burner are all hermetically extended out of the heat insulation and preservation box 2. The heat-insulating and heat-preserving box 2 only encloses the burner body 6 in a sealed manner. Wherein the air inlet pipe 1 and the air outlet pipe 3 of the cathode tail gas of the galvanic pile are both fixed on the heat insulation incubator 2 through flanges.

Further, in this embodiment, the inner wall of the heat insulation and preservation box 2 is provided with a heat insulation and preservation layer, and the heat insulation and preservation effect of the heat insulation and preservation box 2 is further improved through the heat insulation and preservation layer.

As optimization, the heat insulation layer is high-temperature silver paint, and the high-temperature silver paint is arranged on the inner wall of the heat insulation and preservation box 2 and is not in contact with the burner body 6, and the heat insulation and preservation box is in vacuum, so that the high-temperature silver paint is not sintered due to high temperature, and the stable heat insulation and preservation effect is ensured.

In this embodiment, the heat-insulating and heat-preserving box 2 is a rectangular box, a spherical box, an ellipsoidal box, or the like. The shape is not limited to the shape exemplified in the embodiment as long as the burner body 6 is hermetically placed therein.

Based on the combustor described in any of the above embodiments, the present invention further provides a solid oxide fuel cell system, including a combustor, a stack, a reformer, a steam generator, etc., wherein the combustor is the combustor described in any of the above embodiments.

Because the solid oxide fuel cell system adopts the combustor in the application, the solid oxide fuel cell system has better heat insulation effect, reduces the influence on the components around the combustor, and ensures the normal operation of the system.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The burner comprises a burner body and is characterized by further comprising a heat insulation and preservation box, wherein the burner body is arranged in the heat insulation and preservation box in a sealing mode, and the heat insulation and preservation box is used for vacuumizing.

2. The burner of claim 1, wherein the insulated heat retention tank is a quartz box.

3. The burner of claim 1, wherein the insulated heat retention tank is provided with a vacuum port.

4. The burner of claim 1, wherein the stack cathode tail gas inlet pipe, the stack exhaust pipe, the stack anode circulating tail gas inlet pipe, the natural gas inlet pipe and the spark plug of the burner are hermetically extended out of the heat insulation and preservation box.

5. The burner of claim 1, wherein the inner wall of the heat insulation and preservation box is provided with a heat insulation layer.

6. The burner of claim 5, wherein the heat insulating layer is high-temperature silver paint.

7. The burner of claim 1, wherein the insulated heat retention box is a rectangular box.

8. A solid oxide fuel cell system comprising a burner, wherein the burner is as claimed in any one of claims 1 to 7.