CN2758567Y

CN2758567Y - Dry ash gate valve

Info

Publication number: CN2758567Y
Application number: CN 200420099239
Authority: CN
Inventors: 曲树蓁; 矫永臣; 刘永刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-25
Filing date: 2004-12-25
Publication date: 2006-02-15
Anticipated expiration: 2014-12-25

Abstract

The utility model discloses a dry ash gate valve used for a thermal power generation dry ash elimination system, which mainly comprises a valve body (1), wherein an access passage (2) and a discharge passage (3) are arranged on the valve body (1), and a gate plate (4) is arranged in the valve body (1), and is connected with a lifting opening and closing mechanism of the gate plate. The position at the upper part of the discharge passage (3), which is adjacent to the gate plate, is provided with a cavity body (6) communicated with a gate plate cavity (5). The utility model is characterized in that a rib plate (7) is arranged between the gate plate (4) and the discharge passage (3), and the upper part of the rib plate (7) is provided with a slag discharging opening (8) of the gate plate cavity. The utility model has the advantages of no blockage, labor-saving opening and closing, convenient operation, good sealing performance and long service life.

Description

A kind of Dry ash gate valve

One, technical field:

The utility model relates to a kind of Dry ash gate valve that is used for thermal power generation dry ash removal system.

Two, background technique:

At present, the known Dry ash gate valve that is used for thermal power generation dry ash removal system, it mainly comprises valve body, have inlet passage and discharge route on the valve body, in valve body, has flashboard, flashboard is connected with flashboard lifting opening/closing mechanism, and the position on the top of discharge route near flashboard has cavity, and the interior flashboard chamber of cavity and valve body communicates.The Dry ash gate valve of this structure can effectively be discharged the dry ash in the flashboard chamber, and it is unsettled that its deficiency is to be positioned at the flashboard face of discharge route, and the flashboard unbalance stress influences the sealability and the working life of gate valve.

Three, summary of the invention:

The purpose of this utility model is to provide a kind of Dry ash gate valve, to overcome the deficiency of known technology.

The utility model is achieved in that a kind of Dry ash gate valve, it mainly comprises valve body (1), have inlet passage (2) and discharge route (3) on the valve body (1), in valve body (1), has flashboard (4), flashboard (4) is connected with flashboard lifting opening/closing mechanism, position at the close flashboard in the top of discharge route (3) has the cavity (6) that communicates with flashboard chamber (5), its special way is to have gusset (7) between flashboard (4) and discharge route (3), has flashboard chamber slag exhausting mouth (8) on the top of gusset (7).

Dry ash gate valve of the present utility model can be to have dump tank (9) in the bottom of gusset (7).

Dry ash gate valve of the present utility model can be that the inwall at flow channel (2) and discharge route (3) has one deck wearing layer (10).

Dry ash gate valve of the present utility model can be that the wearing layer (10) on flow channel (2) and discharge route (3) inwall is the cast stone wearing layer.

The Dry ash gate valve that the utility model provides can not stop up, and has the advantage that opens and closes laborsaving, easy to operate, good seal performance and long service life.

Four, description of drawings:

Fig. 1: a kind of structural representation of the utility model.

Fig. 2: the reinforcing plate structure schematic representation among Fig. 1.

Five, embodiment:

The utility model is described in further detail in conjunction with embodiment with reference to accompanying drawing.

Embodiment 1, accompanying drawing has provided a kind of concrete structure of the utility model, consult Fig. 1, a kind of Dry ash gate valve, it mainly comprises valve body (1), have inlet passage (2) and discharge route (3) on the valve body (1), in valve body (1), has flashboard (4), flashboard (4) is connected with flashboard lifting opening/closing mechanism, position at the close flashboard in the top of discharge route (3) has the cavity (6) that communicates with flashboard chamber (5), see figures.1.and.2, between flashboard (4) and discharge route (3), have gusset (7), have flashboard chamber slag exhausting mouth (8) on the top of gusset (7).Consult Fig. 1 and Fig. 2, have dump tank (9) in the bottom of gusset (7).Consult Fig. 1, have one deck wearing layer (10) at flow channel (2) and discharge route (3) inwall.Wearing layer (10) on flow channel (2) and discharge route (3) inwall can be the cast stone wearing layer.

Claims

1, a kind of Dry ash gate valve, it mainly comprises valve body (1), have inlet passage (2) and discharge route (3) on the valve body (1), in valve body (1), has flashboard (4), flashboard (4) is connected with flashboard lifting opening/closing mechanism, position at the close flashboard in the top of discharge route (3) has the cavity (6) that communicates with flashboard chamber (5), it is characterized in that having gusset (7) between flashboard (4) and discharge route (3), has flashboard chamber slag exhausting mouth (8) on the top of gusset (7).

2, Dry ash gate valve according to claim 1 is characterized in that having dump tank (9) in the bottom of gusset (7).

3, Dry ash gate valve according to claim 1 and 2 is characterized in that having one deck wearing layer (10) at the inwall of flow channel (2) and discharge route (3).

4, Dry ash gate valve according to claim 3 is characterized in that the wearing layer (10) on flow channel (2) and discharge route (3) inwall is the cast stone wearing layer.