CN201858381U - Filter type gate valve - Google Patents

Abstract

The utility model discloses a filter type gate valve, including valve body, flashboard, the inlet and the liquid outlet of locating valve body inner chamber both ends, be equipped with the row's sediment branch pipe to the slope of liquid outlet direction on the valve body diapire, the valve body roof corresponds row's sediment branch pipe position and is equipped with downwardly extending's blocking part, and blocking part and row's sediment branch pipe are gone up port one side and are formed the filtration entry that corresponds the inlet, and blocking part and row's sediment branch pipe are gone up the filtration export that port opposite side formed the corresponding liquid outlet, filter the entry and filter and are equipped. When the fluid passes through the gate valve, slag and dirt in the fluid are filtered into the slag discharge branch pipe, so that the gate valve has the functions of intercepting and filtering; the function combination simplifies the connection structure of the pipeline system, reduces the leakage hidden trouble caused by the secondary installation of the pipeline, and brings convenience to the installation and maintenance of the pipeline.

Description

Filter Gate Valve

technical field

The utility model belongs to a valve structure, in particular to a gate valve with filtering function.

Background technique

The gate valve is one of the most common opening and closing valves. It uses the gate to connect or cut off the medium in the pipeline. , a filter valve (filter) needs to be added at the initial end or the branch that requires no impurities in the medium to block the residue in the fluid. The two valves are connected in series at the same time, which not only makes the pipeline structure complex, cumbersome to operate, and increases the cost , and there is a hidden danger of leakage in the secondary installation.

Contents of the invention

The problem to be solved by the utility model is to provide a filter type gate valve with simple structure, compact structure and easy installation for the shortcomings of the gate valve, which can play the role of intercepting and filtering in the pipeline.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: a filter gate valve, including a valve body, a gate plate, a liquid inlet and a liquid outlet arranged at both ends of the valve inner cavity, and is characterized in that: the bottom wall of the valve body is provided with There is a slag discharge branch pipe inclined towards the liquid outlet, and the top wall of the valve body is provided with a downwardly extending blocking part corresponding to the slag discharge branch pipe. The filter outlet corresponding to the liquid outlet is formed on the other side of the upper port of the slag discharge branch pipe, and a filter structure is arranged between the filter inlet and the filter outlet.

Further, the filter inlet has an inclination angle consistent with that of the slag discharge branch pipe.

Further, the filter structure is a cylindrical filter screen arranged along the inner wall of the slag discharge branch pipe, and the upper end of the cylindrical filter screen protrudes from the upper port of the slag discharge branch pipe and communicates with the filter inlet.

Further, the filter inlet is provided with a step-shaped positioning groove, and the lower port of the slag discharge branch pipe is provided with a cap, and the cap is pushed against the lower end surface of the cylindrical filter net so that the end surface of the cylindrical filter net is against the step surface of the positioning groove to realize cylindrical filtration. Fixing of the net.

Further, a slag collection chamber communicated with the slag discharge branch pipe is provided inside the cap for collecting filter residue and dirt falling from the filter net.

Further, the cap is screwed on the lower port of the slag discharge branch pipe, and a flat seal is formed between the cap and the lower port of the slag discharge branch pipe.

Further, a sealing ring or sealing packing is embedded between the sealing plane of the cap and the slag discharge branch pipe to improve the sealing effect.

Further, the slag discharge branch pipe is arranged on the bottom wall of the valve body between the flashboard and the liquid outlet.

Further, the inclination angle of the slag discharge branch pipe is 30-60°.

The beneficial effects of the utility model: a slag discharge branch pipe is added to the gate valve, when the fluid passes through the gate valve, the slag and dirt in the fluid are filtered into the slag discharge branch pipe, so that the gate valve has the functions of interception and filtration; At the same time, it also simplifies the connection structure of the pipeline system, reduces the hidden danger of leakage caused by the secondary installation of the pipeline, and brings convenience to the installation and maintenance of the pipeline.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further explained:

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, the filter type gate valve of the present invention includes a valve body 1, a gate plate 10, a liquid inlet 11 and a liquid outlet 12 arranged at both ends of the inner cavity of the valve body 1, and the bottom wall of the valve body 1 is provided with a The slag discharge branch pipe 2 inclined in the direction of the liquid outlet 12, the top wall of the valve body 1 corresponding to the slag discharge branch pipe 2 is provided with a downwardly extending blocking portion 14, and the blocking portion 14 forms a corresponding liquid inlet with the side of the upper port of the slag discharge branch pipe 2 The filter inlet 15 of 11, the blocking part 14 and the other side of the upper port of the slag discharge branch pipe 2 form a filter outlet 16 corresponding to the liquid outlet 12, and a filter structure is arranged between the filter inlet 15 and the filter outlet 16. The slag discharge branch pipe 2 is arranged on the bottom wall of the valve body 1 between the gate plate 10 and the liquid outlet 12, and its inclination angle is generally between 30° and 60°, preferably 45°.

The filter inlet 15 has an inclination angle consistent with that of the slag discharge branch pipe 2; the filter structure is a cylindrical filter 3 arranged along the inner wall of the slag discharge branch pipe 2, and the upper end of the cylindrical filter 3 protrudes from the upper port of the slag discharge branch pipe 2 and connects with the slag discharge branch pipe 2. The filter inlet 15 is connected; the filter inlet 15 is provided with a step-shaped positioning groove 13, and the lower port of the slag discharge branch pipe 2 is provided with a cap 4, and the cap 4 pushes against the lower end surface of the cylindrical filter screen 3 so that the upper end surface of the cylindrical filter screen 3 is against On the step surface of the positioning groove 13, the fixing of the cylindrical filter net is realized.

The cap 4 is screwed on the lower port of the slag discharge branch pipe 2, and a slag collection chamber 41 communicating with the slag discharge branch pipe 2 is provided inside it to collect the filter residue and dirt falling from the filter net; the cap 4 and the slag discharge branch pipe 2 A plane seal is formed between the lower ports of the slag discharge branch pipe 2, and a sealing packing 5 is embedded between the sealing plane of the cap 4 and the slag discharge branch pipe 2, or is replaced by a sealing ring to improve the sealing effect.

After the fluid enters the valve body 1 from the liquid inlet 11, the slag and dirt in it are filtered out under the action of the slag discharge branch pipe 2 and its cylindrical filter 3, and the slag and dirt are concentrated in the slag collection chamber in the cap 4 , when cleaning the slag discharge branch pipe 2, remove it together.

Claims (9)

1. Filter type gate valve, including valve body (1), gate plate (10), liquid inlet (11) and liquid outlet (12) located at both ends of the inner cavity of valve body (1), characterized in that: the valve body (1) The bottom wall is provided with a slag discharge branch pipe (2) inclined towards the liquid outlet (12), and the top wall of the valve body (1) is provided with a downwardly extending blocking portion (14) corresponding to the slag discharge branch pipe (2). ), the blocking part (14) and the side of the upper port of the slag discharge branch pipe (2) form a filter inlet (15) corresponding to the liquid inlet (11), and the blocking part (14) and the other side of the upper port of the slag discharge branch pipe (2) A filter outlet (16) corresponding to the liquid outlet (12) is formed, and a filter structure is arranged between the filter inlet (15) and the filter outlet (16). 2. The filter gate valve according to claim 1, characterized in that: the filter inlet (15) has an inclination angle consistent with that of the slag discharge branch pipe (2). 3. The filter-type gate valve according to claim 1 or 2, characterized in that: the filter structure is a cylindrical filter (3) arranged along the inner wall of the slag discharge branch pipe (2), and the cylindrical filter (3) The upper end protrudes from the upper port of the slag discharge branch pipe (2) and communicates with the filter inlet (15). 4. The filter-type gate valve according to claim 3, characterized in that: the filter inlet (15) is provided with a step-shaped positioning groove (13), the lower port of the slag discharge branch pipe (2) is provided with a cap (4), and the cap ( 4) Push against the lower end surface of the cylindrical filter net (3) so that the upper end surface of the cylindrical filter net (3) abuts against the stepped surface of the positioning groove (13) to fix the cylindrical filter net (3). 5. The filter-type gate valve according to claim 4, characterized in that: a slag collection chamber (41) communicating with the slag discharge branch pipe (2) is provided inside the cap (4). 6. The filtering gate valve according to claim 5, characterized in that: the cap (4) is screwed on the lower port of the slag discharge branch pipe (2), and the cap (4) is connected to the lower port of the slag discharge branch pipe (2). A flat seal is formed between the ports. 7. The filtering gate valve according to claim 6, characterized in that: a sealing ring or sealing packing is embedded between the sealing plane of the cap (4) and the slag discharge branch pipe (2). 8. The filtering gate valve according to claim 1 or 2, characterized in that: the slag discharge branch pipe (2) is arranged at the bottom of the valve body (1) between the gate plate (10) and the liquid outlet (12) on the wall. 9. The filtering gate valve according to claim 1 or 2, characterized in that: the inclination angle of the slag discharge branch pipe (2) is 30-60°.

Images