阅读说明：本技术 一种脉冲式布袋除尘排气系统用闸阀 (Gate valve for pulse type bag dust removal exhaust system ) 是由 何婷 于 2020-11-24 设计创作，主要内容包括：本发明公开了一种脉冲式布袋除尘排气系统用闸阀,包括阀体,所述阀体上安装有阀座,所述阀体内安装有阀芯,所述阀座上螺纹连接有阀杆,且所述阀杆与阀芯转动连接,所述阀体的侧壁固定连接有与其内部相通的变流管,所述变流管上固定连接有与其内部连通的排气管,所述变流管内壁上固定连接有与排气管相通的分流管,所述变流管内底部开设有滑槽,且所述滑槽内密封滑动连接有滑塞。本发明通过在脉冲气流袭来时,将部分气流直接排入阀体内,另一部分气流暂时储存在储气囊内,并在排气间隔时将储存的空气排出,如此可将脉冲气流转化为持续性的平稳气流,大大降低脉冲气流对阀体的冲击效果,从而延长闸阀的使用寿命。(The invention discloses a gate valve for a pulse type bag dust removal exhaust system, which comprises a valve body, wherein a valve seat is arranged on the valve body, a valve core is arranged in the valve body, a valve rod is connected to the valve seat in a threaded manner and is rotatably connected with the valve core, a variable flow pipe communicated with the interior of the valve body is fixedly connected to the side wall of the valve body, an exhaust pipe communicated with the interior of the variable flow pipe is fixedly connected to the variable flow pipe, a flow division pipe communicated with the exhaust pipe is fixedly connected to the inner wall of the variable flow pipe, a sliding groove is formed in the bottom of the variable flow pipe, and a sliding plug is connected. According to the invention, when the pulse airflow comes, part of the airflow is directly discharged into the valve body, the other part of the airflow is temporarily stored in the air storage bag, and the stored air is discharged at the air discharge interval, so that the pulse airflow can be converted into continuous and stable airflow, the impact effect of the pulse airflow on the valve body is greatly reduced, and the service life of the gate valve is prolonged.)

1. A gate valve for a pulse type bag dust removal exhaust system comprises a valve body (1), wherein a valve seat (2) is installed on the valve body (1), a valve core (3) is installed in the valve body (1), a valve rod (4) is connected to the valve seat (2) in a threaded manner, and the valve rod (4) is rotatably connected with the valve core (3), the gate valve is characterized in that a variable flow pipe (5) communicated with the interior of the valve body (1) is fixedly connected to the side wall of the valve body (1), an exhaust pipe (6) communicated with the interior of the variable flow pipe (5) is fixedly connected to the variable flow pipe (5), a shunt pipe (7) communicated with the exhaust pipe (6) is fixedly connected to the inner wall of the variable flow pipe (5), a chute (8) is formed in the inner bottom of the variable flow pipe (5), a sliding plug (81) is connected to the chute (8) in a sealing and sliding, the bottom is equipped with outlet duct (10) in spout (8), just the inlet end intercommunication of outlet duct (10) has gas storage bag (9), communicate through one-way intake pipe (11) between gas storage bag (9) and blast pipe (6).

2. The gate valve of claim 1, wherein the driving device comprises a telescopic air bag (13) fixedly connected to the inner wall of the chute (8), the telescopic air bag (13) is fixedly connected to the side wall of the sliding plug (81), and a negative pressure pipe (12) is communicated between the shunt pipe (7) and the telescopic air bag (13).

3. The gate valve for the pulse type bag dust removal exhaust system according to claim 1, wherein the gas outlet pipe (10) is made of iron, the sliding plug (81) is elastically connected to the inner wall of the sliding groove (8) through a spring (14), an electromagnet (811) is fixedly connected to the side wall of the sliding plug (81), and a power supply device for supplying power to the electromagnet (811) is installed in the shunt pipe (7).

4. The gate valve for the pulse type bag dust removal exhaust system according to claim 3, wherein the power supply device comprises an axial flow impeller (15) rotatably connected in the shunt pipe (7), a closed coil (16) is installed on the axial flow impeller (15), the closed coil (16) is electrically connected with an electromagnet (811), and permanent magnets (17) are embedded in the inner top and the inner bottom of the shunt pipe (7).

5. The gate valve of claim 4, wherein the axial-flow impeller (15) is rotatably connected in the shunt pipe (7) through a damping rotating shaft, and the unlike magnetic poles of the two permanent magnets (17) are opposite.

Technical Field

The invention relates to the technical field of relevant equipment of gate valves, in particular to a gate valve for a pulse type bag dust removal exhaust system.

Background

The gate valve is usually installed in various pipeline systems for conveying gas due to the characteristics of small flow resistance, labor saving in opening and closing, simple structure, easy installation, low price and the like.

For pulse type bag dust removal equipment, pulse compressed air needs to be introduced into the filter bag to clean the filter bag, and the filter bag is discharged through an exhaust system after use, so that kinetic energy of high-speed pulse airflow is large, and the pulse type bag dust removal equipment has a pulse characteristic, can generate a matrix of impact force on sealing parts such as a valve core and the like in a gate valve in the exhaust system, is easy to cause the looseness of the sealing parts such as the valve core and the like, and can cause the reduction of the sealing performance of the gate valve to shorten the service life. In view of the above, this application file provides a pulsed sack dust removal gate valve for exhaust system.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a gate valve for a pulse type bag dust removal exhaust system.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a pulsed sack dust removal gate valve for exhaust system, includes the valve body, install the disk seat on the valve body, install the case in the valve body, threaded connection has the valve rod on the disk seat, just the valve rod rotates with the case to be connected, the lateral wall fixedly connected with of valve body rather than the communicating blast pipe of inside, fixedly connected with is rather than the blast pipe of inside intercommunication on the blast pipe of changing, fixedly connected with and the communicating shunt tubes of blast pipe on the blast pipe inner wall, the spout has been seted up to the intraductal bottom of change, just sealed sliding connection has the sliding plug in the spout, install the drive arrangement who drives the sliding plug and remove in the spout, the bottom is equipped with the outlet duct in the spout, just the inlet end intercommunication of outlet duct has the gas storage bag, communicate through one-way intake pipe.

Preferably, drive arrangement includes the flexible gasbag of fixed connection on the spout inner wall, just flexible gasbag fixed connection is on the lateral wall of sliding plug, the intercommunication has the negative pressure pipe between shunt tubes and the flexible gasbag.

Preferably, the outlet duct adopts the iron system, the sliding plug passes through spring elastic connection on the spout inner wall, fixedly connected with electro-magnet on the lateral wall of sliding plug, install the power supply unit to the electro-magnet power supply in the reposition of redundant personnel pipe.

Preferably, the power supply device comprises an axial flow impeller which is rotatably connected in the shunt pipe, a closed coil is installed on the axial flow impeller, the closed coil is electrically connected with the electromagnet, and permanent magnets are embedded in the inner top and the inner bottom of the shunt pipe.

Preferably, the axial-flow impeller is rotatably connected in the shunt pipe through a damping rotating shaft, and the unlike magnetic poles of the two permanent magnets are opposite.

The invention has the following beneficial effects:

1. by arranging the components such as the shunt pipe, the air storage bag, the one-way air inlet pipe, the air outlet pipe and the like, when the pulse airflow comes, part of the airflow can be directly discharged into the valve body, the other part of the airflow is temporarily stored in the air storage bag, and the stored air is discharged at the air discharge interval, so that the pulse airflow can be converted into continuous and stable airflow, the impact effect of the pulse airflow on the valve body is greatly reduced, and the service life of the gate valve is prolonged;

2. by arranging the negative pressure pipe, the telescopic air bag and other components, the driving device can be operated by utilizing the kinetic energy of the air flow, the structure is simple, and the energy is saved;

3. through setting up parts such as electro-magnet, power supply unit and spring, can make sliding plug round trip movement more timely to make the air current of discharging into the valve body more steady, further reduce the impact effect of air current to the valve body.

Drawings

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

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is an enlarged schematic view of a structure in fig. 2.

In the figure: the valve comprises a valve body 1, a valve seat 2, a valve core 3, a valve rod 4, a flow changing pipe 5, an exhaust pipe 6, a flow dividing pipe 7, a sliding groove 8, a sliding plug 81, an electromagnet 811, an air storage bag 9, an air outlet pipe 10, a one-way air inlet pipe 11, a negative pressure pipe 12, a telescopic air bag 13, a spring 14, an axial flow impeller 15, a closed coil 16 and a permanent magnet 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1, a gate valve for pulse type cloth bag dust removal exhaust system comprises a valve body 1, a valve seat 2 is arranged on the valve body 1, a valve core 3 is arranged in the valve body 1, a valve rod 4 is connected with the valve seat 2 by screw thread, the valve rod 4 is rotationally connected with the valve core 3, the side wall of the valve body 1 is fixedly connected with a variable flow pipe 5 communicated with the inside of the valve body, the variable flow pipe 5 is fixedly connected with an exhaust pipe 6 communicated with the inside of the variable flow pipe, the inner wall of the variable flow pipe 5 is fixedly connected with a shunt pipe 7 communicated with the exhaust pipe 6, the inner bottom of the variable flow pipe 5 is provided with a chute 8, a sliding plug 81 is connected in the sliding chute 8 in a sealing and sliding way, a driving device for driving the sliding plug 81 to move is arranged in the sliding chute 8, an air outlet pipe 10 is arranged at the bottom in the sliding chute 8, and the air inlet end of the air outlet pipe 10 is communicated with an air storage bag 9, the air storage bag 9 is made of elastic rubber materials and can expand to store air, and the air storage bag 9 is communicated with the exhaust pipe 6 through a one-way air inlet pipe 11.

It should be noted that the flow dividing pipe 7 is communicated with the aperture of the air inlet of the one-way air inlet pipe 11, which can ensure the flow of air flowing into the flow dividing pipe 7 and the one-way air inlet pipe 11 to be communicated, so that the air flow discharged into the valve body 1 can be smooth and uniform, and further, the one-way air inlet pipe 11 only allows air to flow into the air storage bag 9 from the one-way air inlet pipe 11.

The driving device comprises a telescopic air bag 13 fixedly connected to the inner wall of the sliding chute 8, the telescopic air bag 13 is fixedly connected to the side wall of the sliding plug 81, and a negative pressure pipe 12 is communicated between the shunt pipe 7 and the telescopic air bag 13.

When the device is used, when pulse airflow is input into the variable flow tube 5 through the exhaust tube 6, part of the air can directly flow into the variable flow tube 5 and the valve body 1 through the shunt tube 7, at the moment, the air flow in the shunt tube 7 is fast and can generate smaller pressure intensity, the air flow in the negative pressure tube 12 communicated with the shunt tube 7 is slow and has larger pressure intensity, and the negative pressure tube 12 and the shunt tube 7 generate pressure intensity difference, so that the air in the negative pressure tube 12 and the telescopic air bag 13 can be extruded into the shunt tube 7, the telescopic air bag 13 is contracted, referring to fig. 1, the sliding plug 81 can be pulled to move left and block the air outlet of the air outlet tube 10, and meanwhile, part of the air exhausted from the one-way air inlet tube 11 enters the air storage bag 9 and cannot be exhausted from the air outlet tube 10, so that the air can be temporarily stored; when the pulse airflow is in the spraying interval period, the airflow in the shunt pipe 7 stops, the pressure difference between the shunt pipe 7 and the negative pressure pipe 12 disappears, the telescopic airbag 13 extends and recovers under the action of the elastic force of the telescopic airbag, the sliding plug 81 is pushed to move rightwards to reset, the sliding plug 81 is moved away from the upper part of the air outlet pipe 10, and the air in the air storage bag 9 can be discharged into the variable flow pipe 5 and the valve body 1 from the air outlet pipe 10. So can change the pulse air current into lasting steady air current through the variable flow tube 5, greatly reduced pulse air current is to the impact effect of valve body to the life of extension gate valve.

Example two:

referring to fig. 2-3, unlike the first embodiment, the air outlet pipe 10 is made of iron, the sliding plug 81 is elastically connected to the inner wall of the chute 8 through the spring 14, the side wall of the sliding plug 81 is fixedly connected with the electromagnet 811, the shunt pipe 7 is internally provided with a power supply device for supplying power to the electromagnet 811, the power supply device comprises an axial flow impeller 15 rotatably connected in the shunt pipe 7, and the axial flow impeller 15 is rotatably connected in the shunt pipe 7 through a damping rotating shaft.

It should be noted that, by providing the damping rotating shaft, when the air flow in the shunt tube 7 stops, the axial flow impeller 15 can stop rotating quickly, so that the electromagnet 811 is cut off quickly, and in addition, the spring 14 with a large stiffness coefficient can be used, so that even if the axial flow impeller 15 still rotates slowly under the inertia effect, the current generated is weak due to the low rotating speed, the magnetic force of the electromagnet 811 is small, and the spring 14 can pull back the sliding plug 81 when the air flow in the shunt tube 7 stops in time.

And axial compressor impeller 15 is last to install closed coil 16, and closed coil 16 and electro-magnet 811 electric connection, and the interior top of shunt tubes 7 all inlays with interior bottom and is equipped with permanent magnet 17, and two permanent magnet 17's unlike magnetic pole is relative.

In this embodiment, whenever there is air flow discharged from the shunt tube 7, the axial flow impeller 15 will be blown to rotate, and the closed coil 16 will be synchronously driven to rotate, the closed coil 16 will continuously cut the two permanent magnets 17 to form the magnetic induction line of the magnetic field when rotating, so that induction current can be generated and the electromagnet 811 is energized, after the electromagnet 811 is energized, magnetic force will be generated and absorbed by the iron outlet pipe 10, thereby pushing the sliding plug 81 to move above the outlet pipe 10 and blocking the outlet of the outlet pipe 10, and when the air flow in the shunt tube 7 stops, the axial flow impeller 15 will be rapidly stopped under the action of the damping rotating shaft, the electromagnet 811 is de-energized, the spring 14 can pull back the sliding plug 81, and the air stored in the air storage bag 9 can be discharged from the outlet pipe 10.

In the first embodiment, the sliding plug 81 is pulled to block the air outlet pipe 10 after the air in the telescopic air bag 13 is exhausted by the negative pressure, the power of the air is the air in the telescopic air bag 13, the time for the sliding plug 81 to block the air outlet pipe 10 is longer, so that the shunt pipe 7 and the air outlet pipe 10 exhaust to the valve body 1 in the initial stage of exhaust, the exhaust amount is larger, in the exhaust interval, only the outlet pipe 10 exhausts the gas, the exhaust volume is small, and the gas flow exhausted into the valve body 1 still has partial pulse characteristics, compared with the first embodiment, the device uses the power supply device, the electromagnet 811 and the spring 14 to move the sliding plug 81 back and forth, by replacing the air flow control with the current control, the sliding plug 81 can block the air outlet pipe 10 more timely, therefore, when the pulse airflow comes, only the shunt pipe 7 discharges the airflow, the airflow discharged into the valve body 1 can be more stable, and the impact effect on the valve body 1 is further reduced.

More prominently, the kinetic energy of the air flow flowing through the variable flow pipe 5 is converted into the kinetic energy of the axial flow impeller 15 and the electric energy of the power supply device, the flow velocity of the pulse air flow can be greatly reduced, the pulse air flow can smoothly pass through the valve body 1, and the impact damage of the air flow to the gate valve is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.