CN216346370U

CN216346370U - Heat pipe air preheater access door

Info

Publication number: CN216346370U
Application number: CN202122552434.0U
Authority: CN
Inventors: 符永和; 姚宏慧; 邵文魏
Original assignee: Changzhou Zongyan Heating Furnace Co ltd
Current assignee: Changzhou Zongyan Heating Furnace Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-19
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a heat pipe air preheater access door which comprises a panel (1), wherein the left side of the panel (1) is hinged with a shell (5) of a heat pipe air preheater through at least two hinges (1-1) which are arranged at intervals up and down, locking mechanisms (2) for locking the panel (1) on the shell (5) are respectively arranged on the upper side, the lower side and the right side of the panel (1), sealing seats (3) are arranged on the periphery of the panel (1), sealing fillers (4) are arranged inside the sealing seats (3), and the sealing fillers (4) are abutted against the shell (5). And a heat-insulating layer (6) is arranged on the inner side of the panel (1). The panel is characterized in that a protective plate (7) is further arranged on the inner side of the panel (1), the protective plate (7) is fixedly connected with the panel (1), and the heat insulation layer (6) is located between the protective plate (7) and the panel (1). The utility model has good sealing performance and greatly reduced air leakage coefficient.

Description

Heat pipe air preheater access door

Technical Field

The utility model relates to a heat pipe air preheater matched with an organic heat carrier furnace, in particular to an access door of the heat pipe air preheater.

Background

The organic heat carrier furnace is widely applied to heating, drying or softening in the fields of food, chemical fiber, petrifaction and the like.

Because the oil temperature of organic heat carrier heater is very high, especially the rated export is greater than the system more than 300 ℃, flue gas exhaust temperature is also very high, so adopt heat pipe air heater to come back and forth the waste heat usually, and along with the price of land is higher and higher more, heat pipe air heater receives people's favor because area is little more and more, but along with the more extensive of use, especially large-scale organic heat carrier heater, the structural requirement to heat pipe air heater is higher and higher, old-fashioned heat pipe air heater access door can not satisfy present operation requirement, its major defect has:

1) the door frame is not tightly pressed, the sealing performance is poor, and the air leakage coefficient is large;

2) the door plate is easy to deform thermally, especially on a heat pipe air preheater matched with a large organic heat carrier furnace;

3) the heat preservation performance is poor;

4) it is inconvenient to open after external heat preservation.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the heat pipe air preheater access door which has good sealing performance and small air leakage coefficient and can better meet the requirements of an environmental protection system.

In order to solve the technical problem, the heat pipe air preheater access door comprises a panel, the left side of the panel is hinged with a shell of a heat pipe air preheater through at least two hinges which are arranged at intervals up and down, locking mechanisms for locking the panel on the shell are respectively arranged on the upper side, the lower side and the right side of the panel, sealing seats are arranged on the periphery of the panel, sealing fillers are arranged inside the sealing seats, and the sealing fillers are abutted to the shell.

In a preferred embodiment of the present invention, an insulating layer is provided on the inner side of the panel.

In a preferred embodiment of the present invention, a protective plate is further disposed on an inner side of the panel, the protective plate is fixedly connected to the panel, and the insulating layer is located between the protective plate and the panel.

As a preferred embodiment of the present invention, the locking mechanism includes a screw, a pressing block and a pressing nut, the screw is mounted on the housing, two ends of the pressing block respectively abut against the panel and the housing, and the pressing nut is screwed with the screw.

After adopting the structure, the utility model has the following beneficial effects:

the locking mechanisms for locking the panel on the shell are respectively arranged on the upper side, the lower side and the right side of the panel, the sealing seats are arranged on the periphery of the panel, the sealing filler is arranged in the sealing seats and is abutted against the shell, and the structure can ensure that the heat pipe air preheater access door has good sealing performance, greatly reduces the air leakage coefficient, can ensure that the sealing filler cannot be blown away due to long-time operation, and greatly prolongs the service life of the sealing filler.

The heat-insulating layer is arranged on the inner side of the panel, so that the access door has good heat-insulating performance, external heat insulation is not needed, the door panel is not easy to deform, the efficiency of the heat pipe air preheater is ensured, and the problem that the access door is inconvenient to open due to the external heat insulation is thoroughly solved.

The utility model has simple structure and can better meet the requirements of an environmental protection system.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a heat pipe air preheater access door of the present invention.

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

Fig. 3 is a side view of fig. 1.

Detailed Description

Referring to fig. 1 to 3, the heat pipe air preheater access door includes a panel 1, the left side of the panel 1 is hinged to a housing 5 of the heat pipe air preheater through at least two hinges 1-1 arranged at intervals up and down, the number of the hinges 1-1 shown in fig. 1 is three, a handle 8 is installed on the outer side of the panel 1, locking mechanisms 2 for locking the panel 1 to the housing 5 are respectively installed on the upper side, the lower side and the right side of the panel 1, a sealing seat 3 is installed around the panel 1, a sealing filler 4 is installed inside the sealing seat 3, the sealing filler 4 is preferably made of rubber or asbestos fabric, and the sealing filler 4 abuts against the housing 5. In the present invention, the sealing seat 3 is preferably in the shape of an angle iron, but of course, the cross section thereof may also be in the shape of a right trapezoid, etc., and the sealing seat 3 may be fixedly connected with the panel 1 by welding to form a whole, or of course, may be formed integrally with the panel 1.

As a preferred embodiment of the present invention, as shown in fig. 1, an insulating layer 6 is provided on the inner side of the panel 1, and the material of the insulating layer 6 is preferably alumina silicate fiber cotton.

As shown in fig. 2 and 3, a protective plate 7 is further provided on the inner side of the panel 1, the protective plate 7 is fixedly connected to the panel 1, and the heat insulating layer 6 is located between the protective plate 7 and the panel 1.

As a preferred embodiment of the present invention, as shown in fig. 2, the locking mechanism 2 includes a screw rod 2-1, a pressing block 2-2 and a compression nut 2-3, the screw rod 2-1 is fixedly installed on the housing 5, two ends of the pressing block 2-2 respectively abut against the panel 1 and the housing 5, and the compression nut 2-3 is screwed with the screw rod 2-1. In the present invention, the locking mechanism 2 may also be a conventional structure such as a latch, which is not shown.

After trial, the utility model greatly improves the sealing performance of the heat pipe air preheater, greatly reduces the air leakage of the heat pipe air preheater, has long service life and particularly achieves good practical effect in a large-scale gas heating furnace system.

Claims

1. The utility model provides a heat pipe air heater access door, includes panel (1), the left side of panel (1) is articulated with heat pipe air heater's casing (5) through hinge (1-1) of two at least upper and lower interval arrangements, its characterized in that: the panel structure is characterized in that locking mechanisms (2) for locking the panel (1) on the shell (5) are respectively arranged on the upper side, the lower side and the right side of the panel (1), sealing seats (3) are arranged on the periphery of the panel (1), sealing fillers (4) are arranged inside the sealing seats (3), and the sealing fillers (4) are abutted to the shell (5).

2. The heat pipe air preheater access door of claim 1, wherein: and a heat-insulating layer (6) is arranged on the inner side of the panel (1).

3. The heat pipe air preheater access door of claim 2, wherein: the panel is characterized in that a protective plate (7) is further arranged on the inner side of the panel (1), the protective plate (7) is fixedly connected with the panel (1), and the heat insulation layer (6) is located between the protective plate (7) and the panel (1).

4. A heat pipe air preheater access door as recited in claim 1 or 2 or 3 wherein: the locking mechanism (2) comprises a screw rod (2-1), a pressing block (2-2) and a compression nut (2-3), the screw rod (2-1) is installed on the shell (5), two ends of the pressing block (2-2) are respectively abutted against the panel (1) and the shell (5), and the compression nut (2-3) is in threaded connection with the screw rod (2-1).