CN210068226U - Fan reverse air duct pressure reducing device - Google Patents
Fan reverse air duct pressure reducing device Download PDFInfo
- Publication number
- CN210068226U CN210068226U CN201920964069.4U CN201920964069U CN210068226U CN 210068226 U CN210068226 U CN 210068226U CN 201920964069 U CN201920964069 U CN 201920964069U CN 210068226 U CN210068226 U CN 210068226U
- Authority
- CN
- China
- Prior art keywords
- air
- inlet
- air inlet
- way valve
- air outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Ventilation (AREA)
Abstract
The utility model discloses a fan reverse-platform air duct pressure reducing device, which comprises a ventilator and an air suction opening arranged at one end of the ventilator, wherein the front part of the air suction opening is provided with a slide way and a movable flashboard arranged in the slide way, the movable flashboard is connected with a lifting device and is used for enabling the movable flashboard to ascend or descend so as to gradually change the air intake of the air suction opening, the lifting device comprises a telescopic cylinder arranged above the air suction opening, an air inlet three-way valve connected with an air inlet of the telescopic cylinder and an air outlet three-way valve communicated with an air outlet of the telescopic cylinder, the air inlet three-way valve and the air outlet three-way valve are both connected with a solenoid valve control device and a manual control device, the utility model has simple structure, effectively controls the air volume to enter a plurality of local air ducts instantly, and the air flow to gradually increase the pressure of the local ventilator from, the air duct disjointing or damage caused by instant rise of the air duct pressure can be effectively avoided.
Description
Technical Field
The utility model relates to a colliery instrument technical field, concretely relates to fan falls platform dryer pressure relief device.
Background
Along with the increase of the coal seam mining depth, the gas content of the tunneling working face rises along with the increase of the coal seam mining depth, in order to effectively dilute and reduce the gas content of the tunneling working face, a high-power local fan is needed to supply air to the tunneling working face, the air quantity of the tunneling working face is further increased, the gas content of the working face is diluted and discharged through the increase of the air quantity of the working face, the gas of the tunneling working face is guaranteed not to exceed the limit, and safe production is achieved.
According to the regulation of coal mine safety regulations, the method comprises the following steps: the local ventilators which are normal in the tunneling working face of the coal road, the semi-coal road and the rock road with gas emission of the high gas and the outburst mine are required to be equipped with spare local ventilators with the same capacity and can be automatically switched, the power supply of the spare local ventilators is required to be taken from another electrified power supply, and when the local ventilators which normally work break down, the spare local ventilators can be automatically started to ensure the normal ventilation of the tunneling working face. For guaranteeing that reserve auxiliary ventilating fan can normally use under the condition that main auxiliary ventilating fan meets the trouble, consequently the mine needs to carry out the test of falling over the platform to the auxiliary ventilating fan of normal work and reserve auxiliary ventilating fan every day, the auxiliary ventilating fan of normal work and reserve auxiliary ventilating fan air intake all do not have any accuse wind device, a large amount of wind-flow gets into the auxiliary ventilating fan dryer through the auxiliary ventilating fan air outlet in the twinkling of an eye through the auxiliary ventilating fan inlet scoop, cause easily that the auxiliary ventilating fan dryer disjointed or the dryer is damaged in the atress in the twinkling of an eye, lead to the tunnelling working face air feed not enough, cause the.
Disclosure of Invention
The utility model aims at providing a simple structure, convenient to use's fan falls a dryer pressure relief device.
The purpose of the utility model is realized like this:
the utility model provides a fan falls platform dryer pressure relief device, includes the ventilation blower and is located the inlet scoop of ventilation blower one end, the place ahead of inlet scoop is equipped with the slide and is located be used for the shutoff in the slide the movable flashboard of inlet scoop, movable flashboard is connected with elevating gear and is used for making movable flashboard rise or descend, thereby makes the intake of inlet scoop changes gradually, elevating gear is including being located the telescopic cylinder of inlet scoop top, with the inlet three-way valve that the telescopic cylinder air inlet is connected, with the three-way valve of giving vent to anger of telescopic cylinder gas outlet intercommunication, inlet three-way valve and the three-way valve of giving vent to anger all are connected with solenoid valve controlling means and manual control device.
The slide way is a semicircular arc with an upward opening, the circle center of the slide way is superposed with the circle center of the air suction opening, and the rear surface of the bottom of the slide way is fixedly connected with the front surface of the bottom of the air suction opening.
The internal surface of slide is equipped with the pulley, movable flashboard with the pulley contact, the pulley with slide internal surface swing joint.
The telescopic cylinder comprises a cylinder and a telescopic rod connected with the cylinder, and the movable flashboard is connected with the other end of the telescopic rod.
The air inlet three-way valve comprises a first air inlet, a second air inlet, a first control ball valve and an air outlet, the air outlet is communicated with the air inlet of the air cylinder, the air outlet three-way valve comprises a first air outlet, a second control ball valve and an air inlet, and the air inlet is communicated with the air outlet of the air cylinder.
The first air inlet and the first air outlet are connected with the electromagnetic valve control device through a pipeline, and the second air inlet and the second air outlet are connected with the manual control device through a pipeline.
The lifting device is provided with two lifting devices.
The utility model has the advantages that: the utility model discloses simple structure, movable flashboard and elevating gear's setting, effectively make the amount of wind get into ventilation blower and dryer in the twinkling of an eye in a large number, the air current is increased gradually to stability by little for ventilation blower and dryer pressure, can effectively avoid dryer pressure to rise the dryer disjointing or the damage that causes in the twinkling of an eye, the material consumption of mine has been reduced, the normal air feed of tunnelling working face has been guaranteed, the factor of safety of mine tunnelling working face gas control has been improved, manual control device and solenoid valve controlling means's dual design, it causes movable flashboard to stop rising or decline to avoid the solenoid valve to break down.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the telescopic cylinder of the present invention;
FIG. 3 is a right side view of FIG. 1;
in the figure: the air inlet structure comprises an air suction opening 1, a movable flashboard 2, an expansion rod 3, an air cylinder 4, an air inlet three-way valve 5, an air outlet three-way valve 6, a support 7, a slide rail 8, a pulley 9, an air outlet 10, a first air inlet 11, a second air inlet 12, a first control ball valve 13, an air inlet 14, a first air outlet 15, a second air outlet 16, a second control ball valve 17, an electromagnetic valve control device 18, a manual control device 19, a ventilator 20 and an air duct 21.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 3, a fan reversing air duct pressure reducing device comprises a ventilator 20 and an air inlet 1 located at one end of the ventilator 20, an air outlet at the other end of the ventilator 20 is connected with an air duct 21, a slide 8 and a movable gate plate 2 located in the slide 8 and used for plugging the air inlet are arranged in front of the air inlet 1, the movable gate plate 2 is connected with a lifting device and used for enabling the movable gate plate 2 to ascend or descend, so that the air inlet amount of the air inlet 1 changes gradually, the two lifting devices are respectively located at the left end and the right end of the top of the movable gate plate 2, the lifting device is fixedly connected with the left side and the right side of the slide 8 through a support 7, and the lifting device comprises a telescopic cylinder located above the air inlet 1, an air inlet three-way valve 5 connected with an air inlet of the telescopic cylinder, and an air outlet three-way valve 6 communicated, the three-way valve 5 admits air and the three-way valve of giving vent to anger all 6 and is connected with solenoid valve controlling means 18 and manual control device 19, telescopic cylinder include cylinder 4, with telescopic link 5 that cylinder 4 is connected, movable flashboard 2 with the other end of telescopic link 3 is connected, admit air three-way valve 5 includes first air inlet 11, second air inlet 12, first control ball valve 13 and gas outlet 10, gas outlet 10 with the air inlet intercommunication of cylinder 4, three-way valve 6 of giving vent to anger includes first gas outlet 15, second gas outlet 16, second control ball valve 17 and air inlet 14, the air inlet 14 with the gas outlet intercommunication of cylinder 4. The first air inlet 11 and the first air outlet 15 are connected with an electromagnetic valve control device 18 through a pipeline, the second air inlet 12 and the second air outlet 16 are connected with a manual control device through a pipeline, when the local ventilator reverses the platform, a local ventilator control switch and the electromagnetic valve control device 18 perform linkage action, the electromagnetic valve control device 18 enables the first air inlet 11 to be opened and the first air outlet 15 to be closed, air enters the air cylinder 4 through the first air inlet 11 through the air outlet 10, namely the telescopic rod 3 in the air cylinder 4 rises, the movable flashboard 2 is lifted upwards, namely the movable flashboard 2 gradually and slowly rises, then the air quantity is controlled by the movable flashboard 2 to slowly enter the ventilator 20 from small to large, the pressure of the air flow to the ventilator 20 and the air duct 21 is gradually increased from small to stable, and the air duct disjointed or damaged caused by the instantaneous rise of the air duct pressure can be effectively avoided, the material consumption of the mine is reduced, the normal air supply of the driving working face is ensured, and the safety coefficient of gas control of the driving working face of the mine is improved; when the local ventilator stops operating, the control switch of the local ventilator and the electromagnetic valve control device 18 act in an interlocking manner, the electromagnetic valve control device 18 enables the first air outlet 15 to be opened and the first air inlet 11 to be closed, air in the air cylinder 4 is exhausted through the air outlet of the air cylinder, the air inlet 14 and the first air outlet 15, the telescopic rod 3 in the air cylinder 4 descends, and the movable flashboard 2 slowly descends and falls on the slide rail 8.
Once the solenoid valve control device 18 is damaged, the movable shutter 2 cannot be lifted normally. The first air inlet 11 is disconnected from the air outlet 10 by rotating the first control ball valve 13, and the second air inlet 12 is connected with the air outlet 10, and the first air outlet is disconnected from the air inlet 14 by rotating the second control ball valve 17, and the second air outlet 16 is connected with the air inlet 14, namely, the manual control device 19 controls the air inlet and the air outlet of the air cylinder. When the local ventilator is reversed, the second air inlet 12 is opened through the manual control device 19, air enters the air cylinder 4 through the second air inlet via the air outlet 10, the telescopic rod 3 in the air cylinder 4 rises to pull the movable flashboard 2 upwards, namely, the movable flashboard 2 gradually and slowly rises, then the air quantity is controlled by the movable flashboard 2 to slowly enter the ventilator wind tube from small to large, the pressure of the air flow for the ventilator 20 and the wind tube 21 is gradually increased from small to stable, the phenomenon that the wind tube is disconnected or damaged due to the instantaneous rise of the pressure of the ventilator 20 and the wind tube 21 can be effectively avoided, the material consumption of a mine is reduced, the normal air supply of a tunneling working face is ensured, and the safety factor of gas control of the tunneling working face of the mine is improved; when the local ventilator stops operating, the second air outlet 16 is opened and the second air inlet 12 is closed through the manual control device 19, so that the air in the air cylinder 4 is discharged from the air cylinder air outlet from the second air outlet 16 through the air inlet 14, the telescopic rod 3 descends, the movable gate plate 2 descends slowly and falls in the slide way 8, the electromagnetic valve control device comprises a controller connected with an electromagnetic valve, the controller is a PLC controller of Siemens series s7-200 series, and the manual control device comprises a manual valve.
The utility model discloses simple structure, movable flashboard and elevating gear's setting, effectively make the amount of wind get into auxiliary ventilating fan and dryer in the twinkling of an eye in a large number, the air current is increased gradually to stability by little for ventilation blower and dryer pressure, can effectively avoid dryer pressure to rise the dryer disjointing or the damage that causes in the twinkling of an eye, the material consumption of mine has been reduced, the normal air feed of tunnelling working face has been guaranteed, the factor of safety of mine tunnelling working face gas control has been improved, manual control device and solenoid valve controlling means's dual design, it causes movable flashboard to stop rising or descend to avoid the solenoid valve to break down.
Claims (7)
1. The utility model provides a fan falls platform dryer pressure relief device, includes the ventilation blower and is located the inlet scoop of ventilation blower one end, its characterized in that: the place ahead of inlet scoop is equipped with the slide and is located be used for the shutoff in the slide the movable flashboard of inlet scoop, movable flashboard is connected with elevating gear and is used for making movable flashboard rise or descend, thereby makes the intake rate of inlet scoop changes gradually, elevating gear including be located telescopic cylinder of inlet scoop top, with the inlet three-way valve that telescopic cylinder air inlet is connected, with the three-way valve of giving vent to anger of telescopic cylinder gas outlet intercommunication, inlet three-way valve and the three-way valve of giving vent to anger all are connected with solenoid valve controlling means and manual control device.
2. The fan inverted fan drum pressure reducing device according to claim 1, characterized in that: the slide way is a semicircular arc with an upward opening, the circle center of the slide way is superposed with the circle center of the air suction opening, and the rear surface of the bottom of the slide way is fixedly connected with the front surface of the bottom of the air suction opening.
3. The fan inverted fan drum pressure reducing device according to claim 2, characterized in that: the internal surface of slide is equipped with the pulley, movable flashboard with the pulley contact, the pulley with slide internal surface swing joint.
4. The fan inverted fan drum pressure reducing device according to claim 1, characterized in that: the telescopic cylinder comprises a cylinder and a telescopic rod connected with the cylinder, and the movable flashboard is connected with the other end of the telescopic rod.
5. The fan inverted fan drum pressure reducing device according to claim 1, characterized in that: the air inlet three-way valve comprises a first air inlet, a second air inlet, a first control ball valve and an air outlet, the air outlet is communicated with the air inlet of the air cylinder, the air outlet three-way valve comprises a first air outlet, a second control ball valve and an air inlet, and the air inlet is communicated with the air outlet of the air cylinder.
6. The fan inverted fan drum pressure reducing device according to claim 5, characterized in that: the first air inlet and the first air outlet are connected with the electromagnetic valve control device through a pipeline, and the second air inlet and the second air outlet are connected with the manual control device through a pipeline.
7. The fan inverted fan drum pressure reducing device according to claim 1, characterized in that: the lifting device is provided with two lifting devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964069.4U CN210068226U (en) | 2019-06-25 | 2019-06-25 | Fan reverse air duct pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964069.4U CN210068226U (en) | 2019-06-25 | 2019-06-25 | Fan reverse air duct pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068226U true CN210068226U (en) | 2020-02-14 |
Family
ID=69428694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920964069.4U Expired - Fee Related CN210068226U (en) | 2019-06-25 | 2019-06-25 | Fan reverse air duct pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882890A (en) * | 2021-09-30 | 2022-01-04 | 鄂尔多斯市伊化矿业资源有限责任公司 | Long-distance local ventilation device for rapid tunneling of mine working face ultra-long-distance coal roadway |
-
2019
- 2019-06-25 CN CN201920964069.4U patent/CN210068226U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882890A (en) * | 2021-09-30 | 2022-01-04 | 鄂尔多斯市伊化矿业资源有限责任公司 | Long-distance local ventilation device for rapid tunneling of mine working face ultra-long-distance coal roadway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102134048B (en) | Hydraulic system of hybrid power forklift | |
| CN206554973U (en) | A kind of air pump Auto-drainage control system | |
| CN210068226U (en) | Fan reverse air duct pressure reducing device | |
| CN103950870B (en) | A kind of forklift hydraulic system of double pump fuel feeding band energy regenerating | |
| CN200975519Y (en) | Three-way controlling valves for high-pressure heater | |
| CN105498563A (en) | Coal mine gas mixing system and mixing method | |
| CN206449806U (en) | A kind of wind balance regulator in ducting system | |
| CN203132290U (en) | Double-layer stoving line | |
| CN109113780B (en) | Tunnel shaft or inclined shaft ventilation fume extractor based on monsoon | |
| CN204851808U (en) | Two driving system of jet plane pump sending mechanism | |
| CN201746869U (en) | Constant tension control system of hydraulic rotary table | |
| CN104405930A (en) | Mechanical linkage cut-off valve | |
| CN201962038U (en) | Hydraulic system for hybrid power forklift | |
| CN210738975U (en) | Hand pump and hydraulic brake | |
| CN201884045U (en) | Mine automatic switching air door | |
| CN105735702B (en) | Stereo garage | |
| CN103775087A (en) | Roll-cutting type continuous mining machine | |
| CN212739350U (en) | Automatic material stopping device | |
| CN204114231U (en) | Automatic tee selector valve in a kind of bag-type dust removing system | |
| CN207514783U (en) | New type solar energy street lamp | |
| CN208734289U (en) | A kind of oil-well rig hydraulic lifting device | |
| CN220395747U (en) | Underground coal mine pneumatic air door and locking control device | |
| CN211314276U (en) | Automatic drainage control device of mining air pump | |
| CN102788190A (en) | Draw bar cutting system for ignition furnace | |
| CN212676428U (en) | Automatic distilled water adding device suitable for storage battery of high-altitude operation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 Termination date: 20200625 |