CN201606862U

CN201606862U - Boiler barrel manhole door device

Info

Publication number: CN201606862U
Application number: CN2009202865886U
Authority: CN
Inventors: 周波; 隗婷; 叶伟民; 周纪根
Original assignee: Shanghai Boiler Works Co Ltd
Current assignee: Shanghai Boiler Works Co Ltd
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2010-10-13
Anticipated expiration: 2019-12-29

Abstract

The technical scheme of the utility model provides a boiler barrel manhole door device which includes an end socket; a manhole cover is arranged in the end socket; the boiler barrel manhole door device is characterized a bracket is connected with the manhole cover; a second pressing weight is arranged on the manhole cover and is fixed on the bracket by bolts; the handle is arranged on the bracket; the manhole cover is connected with the inner wall of the end socket through a first support hanger, an overhang-door rid and a second support hanger; and the inner side of the manhole cover is provided with the lifting eye of the manhole cover. The boiler barrel manhole door device has the advantages of excellent sealing performance, simple structure, convenient installation, more flexible and convenient moving and higher safety.

Description

A kind of drum manhole door device

Technical field

The utility model relates to a kind of drum manhole door device, is applicable to the drum manhole door device of dum boiler, belongs to the Subcritical Utility Boiler technical field.

Background technology

For Subcritical Utility Boiler, need drum to carry out carbonated drink and separate to obtain qualified saturated vapor.For the device that guarantees drum inside and parts such as chemical feed pipe, give water distribution pipe, steam-water separator, respectively weld fixed head etc. in the precalculated position and bring into play its function, the staff need enter drum inside in assembling and maintenance, offers manhole door on the end socket of drum both sides; In addition in order to take into account the sealing in normal when operation, lay the manhole door device on the dome head of manhole door having.

As Fig. 1, shown in 2, be former drum manhole door apparatus structure schematic diagram, former drum manhole door device is interconnected to form manhole plugging device closely by the inverted T-shaped manhole cover 2 in the end socket 1 and two first pressure horses 3, inverted T-shaped manhole cover 2 in the end socket 1 is connected on end socket 1 inwall, inverted T-shaped manhole cover 2 is by first bearing 5, first connecting plate 6, second connecting plate 7 is connected with end socket 1 inwall with second bearing 8, on T shape manhole cover 2, be provided with handle 4, the shortcoming of this drum manhole door is: at dress weldering connecting plate 6, during 7 and second bearing 8 because the structure relative complex, so troublesome poeration is wanted trial assembly and is relocated; When the manhole door device open to use, there are two fulcrums can be simultaneously the folding trajectory of manhole cover 2 to be limited, activity is solidified relatively; The staff also can't carry out controlled fixing to the manhole cover of opening 2, and security is relatively poor relatively.

Summary of the invention

The purpose of this utility model provides the drum manhole door device that a kind of sealing is good, simple in structure, easy for installation, activity is more nimble, security is higher.

For realizing above purpose, the technical solution of the utility model provides a kind of drum manhole door device, comprise end socket, manhole cover is located in the end socket, it is characterized in that, bracket is connected with manhole cover, second presses horse to be located on the manhole cover, and by bolting on bracket, handle is located on the bracket, manhole cover by first hang, the overhang-door bar hangs with the end socket inwall and is connected with second, is provided with the manhole cover hanger in the manhole cover inboard.

The interaction principle of the utility model utilization power, folding effect when realizing the sealing property when manhole door normally moves and maintenance being installed, the utilization theory of mechanics is done improvement to device in assurance function, the use of overhang-door bar preface, flexibility in the time of both can satisfying the manhole door folding, simplified device simultaneously, the installation location is convenient; The increase of bracket has guaranteed the physical and chemical performance of manhole cover material, has reduced the possibility that steam is overflowed.The hanger increase makes the manhole cover folding more controlled, increases security, can guarantee the safety of staff access manhole door better.

The utility model has the advantages that sealing is good, simple in structure, easy for installation, activity is more nimble, security is higher.

Description of drawings

Fig. 1 is former drum manhole door apparatus structure schematic diagram;

Fig. 2 is former drum manhole door device upward view;

Fig. 3 is a kind of drum manhole door of the utility model apparatus structure schematic diagram;

Fig. 4 is a kind of drum manhole door of the utility model device upward view.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment

Shown in Fig. 3,4, be a kind of drum manhole door of the utility model apparatus structure schematic diagram, described a kind of drum manhole door device by end socket 1, manhole cover 9, second press that horse 10, first hang 11, overhang-door bar 12, bracket 13, second hang 14, hanger 15 forms.

Manhole cover 9 is installed in the end socket 1, bracket 13 and manhole cover 9 welding, second presses horse 10 to be installed on the manhole cover 9, and by bolting on bracket 13, can not destroy self each parameter of manhole cover; Handle 4 and bracket 13 welding, process the movable more convenient staff push-and-pull of simple and manhole cover, the effect of the manhole cover that is heated of protection pressurized is also arranged, manhole cover 9 by first hang 11, overhang-door bar 12 hangs 14 and is connected with end socket 1 inwall with second, and guarantee its flexible rotation folding; Simplified the link of door upper hinge support and cylindrical shell upper bracket, institute is stressed to be able to than balanced transmission.For guaranteeing the reliability of manhole door sealing, contact-making surface at manhole cover and end socket has used wound form metallic graphite carbon packing ring, manhole cover 9 is provided with the manhole door convex shoulder, total backlash should not surpass 3mm between manhole door convex shoulder and the manhole circle, along being no more than 1.5mm on the circumference each point, and the degree of depth of groove should reach and can intactly hold seal washer.In order to make the convenient turnover of staff, the manhole door intended diameter is answered 〉=Φ 406mm, at manhole cover 9 installed inside people first hanger 15, second hanger on first hanger 15 of manhole cover 9 and the end socket can be welded on the end socket, the determining positions of first hanger 15 under the manhole door opening after the position is finished by other parts dress weldering, connect and play temporary fixed effect, guaranteed the security of staff's turnover.

When boiler normally moves, the interior pressure of drum makes manhole cover 9 be sealed in end socket 1 and opens in the manhole door, when manhole cover 9 needs the people to pass through, after bolt screwed off, take off and press horse 10, pad is taken out from the draw-in groove of bracket 13, can open manhole cover 9, after opening manhole cover 9, first hanger 15 and second hanger on the manhole cover 9 are connected to a fixed, can enter drum inside.

Claims

1. drum manhole door device, comprise end socket (1), manhole cover (9) is located in the end socket (1), it is characterized in that bracket (13) is connected with manhole cover (9), second presses horse (10) to be located on the manhole cover (9), and by bolting on bracket (13), handle (4) is located on the bracket (13), and manhole cover (9) hangs (11), overhang-door bar (12) by first and hangs (14) and be connected with end socket (1) inwall with second, is provided with manhole cover hanger (15) in manhole cover (9) inboard.

2. a kind of drum manhole door device according to claim 1 is characterized in that described manhole cover (9) is provided with the manhole door convex shoulder, and total backlash is no more than 3mm between manhole door convex shoulder and the manhole circle, along being no more than 1.5mm on the circumference each point.