CN113513355B - Full-servo safety interlocking air door and control method - Google Patents
Full-servo safety interlocking air door and control method Download PDFInfo
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- CN113513355B CN113513355B CN202110412846.6A CN202110412846A CN113513355B CN 113513355 B CN113513355 B CN 113513355B CN 202110412846 A CN202110412846 A CN 202110412846A CN 113513355 B CN113513355 B CN 113513355B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 5
- 229920002396 Polyurea Polymers 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 description 7
- 239000003245 coal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/10—Air doors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
- E05B51/02—Operating or controlling locks or other fastening devices by other non-mechanical means by pneumatic or hydraulic means
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/10—Air doors
- E21F1/12—Devices for automatically opening air doors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a full-servo safety interlocking air door, which comprises two air doors, wherein each air door comprises two door posts, a left door leaf and a right door leaf are symmetrically arranged between the two door posts, the left door leaf and the right door leaf are arc-shaped door leaves with the same structure, and a plurality of transverse ribs are arranged on the arc-shaped door leaves from top to bottom; a top box is arranged above the door post, the top box comprises a rectangular frame and a triangular frame which are fixedly connected into a whole, the length of the rectangular frame is the same as the width of the air door, the width of the rectangular frame is the same as the width of the door post, and the vertex angle alpha of the triangular frame is 140 degrees; the air door is characterized by further comprising two groups of pneumatic assemblies for driving the left door leaf and the right door leaf and a set of air channel control system for controlling the pneumatic assemblies, wherein the two air doors are opened and closed through the air channel control system to be interlocked. The invention also discloses a full-servo safety interlocking air door and a control method. The invention can solve the problems that the door body of the existing mine air door leaf is easy to deform, elements are easy to damage and two air doors cannot be interlocked.
Description
Technical Field
The invention relates to the technical field of underground ventilation control, in particular to a full-servo safety interlocking air door and a control method.
Background
In order to meet the requirements of good air environment and safe production in a mine, large ventilation equipment is arranged at a coal mine wellhead to forcibly blow air into the underground, the whole mine is filled with fresh air, in order to reduce the loss of artificial air blowing, two air doors are arranged in a tunnel under the coal mine, the air blowing loss can be avoided, the passing rule of the two doors is that only one door can be opened for passing, the other door must be in a closed state, when a pedestrian or a vehicle enters from any one of the tunnels, one air door is opened, the other air door needs to be in a closed state, and when one air door is closed, the other air door can be opened to prevent the two doors from being opened, so that the air flow is short-circuited to cause potential safety hazards, and the coal mine safety is affected.
In general, the underground air door leaf is flat plate structure, and two door leaves are on the coplanar, namely door leaf opening stroke angle is 180 °, if the pressure of wind pressure acts on the door body perpendicularly for a long time, the door body is easy to deform, the life-span is lower, and the door leaf is difficult to open when the negative pressure is great. The pneumatic element, the air cylinder, the electric control element and the like are exposed, and are extremely easy to damage in complex environmental conditions under a mine. In addition, although the air doors can be respectively opened and closed through the pneumatic element under the control of the electric control element, the front air door and the rear air door do not have an automatic interlocking function, one door cannot be stably and reliably kept open, the other door is closed, the condition that the two doors are simultaneously opened is easily caused, the air flow is short-circuited to cause potential safety hazards, and normal production of a mine is influenced.
Disclosure of Invention
The invention aims to provide a full-servo safety interlocking air door and a control method, which are used for solving the problems that the door body of the existing mine air door leaf is easy to deform, elements are easy to damage and two air doors cannot be interlocked.
In order to solve the problems, the invention adopts the following technical scheme:
the full-servo safety interlocking air door comprises two air doors, each air door comprises two door posts, a left door leaf and a right door leaf are symmetrically arranged between the two door posts, the left door leaf and the right door leaf are arc-shaped door leaves with the same structure, and a plurality of transverse ribs are arranged on the arc-shaped door leaves from top to bottom;
a top box is respectively arranged above two door posts of each air door, the top box comprises a rectangular frame and a triangular frame which are fixedly connected into a whole, the length of the rectangular frame is identical to the width of the air door, the width of the rectangular frame is identical to the width of the door posts, the triangular frame is arranged on one side close to the left door leaf and the right door leaf, the vertex angle alpha of the triangular frame is 140 degrees, and the closing angle of the left door leaf and the right door leaf is 140 degrees;
the air channel control system is arranged in the top box and the door post, each group of air channel control system comprises two driving air cylinders respectively corresponding to the left door leaf and the right door leaf, a cylinder seat of each driving air cylinder is arranged on the rectangular frame through a hinged support, a piston rod of each driving air cylinder is hinged with the corresponding left door leaf or right door leaf, and two air doors are opened and closed through the air channel control system to be interlocked.
Optionally, the air channel control system comprises an air inlet main valve, an air source processing element, an air channel A and an air channel B, wherein the air source processing element is respectively connected with the air channel A and the air channel B through a tee joint;
the air channel A and the air channel B have the same structure, and respectively comprise a two-position three-way pilot valve, a first two-position three-way hand-pull valve, a second two-position three-way hand-pull valve, a large two-position five-way locking valve and a small two-position five-way locking valve;
in a normal state, the working ports A of the two-position three-way pilot valve, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are communicated with the exhaust port R, and the working ports A of the large two-position five-way locking valve and the small two-position five-way locking valve are communicated with the air inlet P;
in the ventilation state, the working ports A of the two-position three-way pilot valve, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are communicated with the air inlet P, and the working ports B of the large two-position five-way locking valve and the small two-position five-way locking valve are communicated with the air inlet P;
the working port A of the two-position three-way pilot valve is connected with the air source processing element, the air inlet P of the two-position three-way pilot valve is respectively connected with the air inlets P of the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve through a tee joint, the working port A of the first two-position three-way hand-pulled valve and the working port A of the second two-position three-way hand-pulled valve are mutually connected, and the air outlet R of the first two-position three-way hand-pulled valve and the air outlet R of the second two-position three-way hand-pulled valve are respectively connected with the control ports of the large two-position five-way locking valve;
the working port A of the small two-position five-way locking valve in the air path A is connected with the control port of a two-position three-way pilot valve of the air path B through a first pilot control air pipe, and the working port A of the small two-position five-way locking valve in the air path B is connected with the control port of a two-position three-way pilot valve of the air path A through a second pilot control air pipe;
the air passage A corresponds to the first air door, the air passage B corresponds to the second air door, the rear cavity air supply pipes in the two air passages are respectively communicated with the rear cavity of each driving cylinder in the corresponding air door through air pipes, and the front cavity air supply pipes in the two air passages are respectively communicated with the front cavity of each driving cylinder in the corresponding air door through air pipes.
Optionally, the air path A and the air path B further comprise a one-way throttle valve respectively, and the one-way throttle valves are connected with the exhaust port R of the first two-position three-way hand-pulled valve and the exhaust port R of the second two-position three-way hand-pulled valve respectively.
Optionally, the air source processing element includes an air filter, a pressure relief valve, and an oil mist.
Optionally, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are respectively and correspondingly arranged on the front side and the rear side of the air door.
Optionally, the pneumatic assembly further comprises a pressure relief cylinder, a cylinder seat of the pressure relief cylinder is arranged in the top box through a hinged support, a piston rod of the pressure relief cylinder stretches out and then is in pressing contact with the left door leaf or the right door leaf, a rear cavity of the pressure relief cylinder is connected with a rear cavity air supply pipe in the air channel through an air pipe, and a front cavity of the pressure relief cylinder is connected with a front cavity air supply pipe in the air channel through an air pipe.
Optionally, the keels of the top box and the gate post are square steel pipes, the outer skins of the two surfaces of the arc-shaped door leaf are steel plates, and polyurea is sprayed on the surfaces of the steel plates.
Optionally, one of the arc-shaped door leaves of each air door is provided with a standard pedestrian door, and each arc-shaped door leaf is provided with a lookout window.
The full-servo safety interlocking air door control method comprises the following steps:
a. the air source enters an air source treatment element through an air inlet main valve, and is conveyed to the whole system after being treated by filtration and the like;
b. one of the air doors is opened: opening a first two-position three-way hand-pulled valve or a second two-position three-way hand-pulled valve in the air passage A, switching on a control air passage of the first air door, reversing the large two-position five-way locking valve after an air source reaches the large two-position five-way locking valve of the air passage A, conveying the air source to rear cavities of each driving cylinder and the pressure relief cylinder of the first air door through a working port B of the large two-position five-way locking valve, and pushing a left door leaf and a right door leaf of the first air door to be simultaneously opened;
c. locking the other air door: meanwhile, the air source is switched to the control port of the small two-position five-way locking valve through the working port B of the large two-position five-way locking valve, so that the small two-position five-way locking valve is switched off, the air inlet of the small two-position five-way locking valve is blocked, the first pilot control air pipe is free of the air source, the two-position three-way pilot valve in the second air door is in a closed state, no matter whether the first two-position three-way hand-operated valve or the second two-position three-way hand-operated valve in the air channel B is opened or not, the air source cannot reach the control port of the large two-position five-way locking valve, the control port of the large two-position five-way locking valve is free of pilot pressure, the air source cannot provide power for the driving cylinder of the second air door through the large two-position five-way locking valve in the air channel B, and the second air door is still in a closed state, so that locking is formed.
The reversing process of the large two-position five-way locking valve in the step b is as follows: the air source directly passes through the big two-position five-way locking valve, the small two-position five-way locking valve and the second pilot control air pipe in the air path B from the air source processing element to reach the control port of the two-position three-way pilot valve of the air path A, so that the working port A of the two-position three-way pilot valve of the air path A is communicated with the air inlet P, and the air source passes through the first two-position three-way hand-pull valve or the second two-position three-way hand-pull valve to reach the control port of the big two-position five-way locking valve after coming out of the two-position three-way pilot valve, so that the big two-position five-way locking valve is reversed.
By adopting the technical scheme, the invention has the following advantages:
compared with a flat door leaf, the door body has the advantages that the deformation resistance is improved, the two doors are obliquely butted, the pressure of wind pressure acts on the door body, and the door body is obliquely butted, so that the wind pressure perpendicular to the door body can be reduced; meanwhile, the door body adopts an arc-shaped design, and transverse ribs are arranged at the upper part and the lower part, so that the structure has deformation resistance better than that of a flat door; meanwhile, the top box structure of the invention changes the closing angle of the left door leaf and the right door leaf from 180 degrees of the flat plate door to 140 degrees, if the closing angle of the two doors is a 180-degree plane structure, the pressure resistance is zero once the pressure deformation exceeds 180 degrees, the design not only avoids the problem that the pressure resistance is zero, but also greatly increases the power for opening the door leaf when the negative pressure is overlarge.
According to the invention, the two air channels of the air channel control system are connected with the two air doors, so that the functions of opening, closing and locking each other are realized, when the first air door is opened, the second air door is locked, the potential safety hazard under a mine is reduced, and the mine safety production is facilitated.
Drawings
FIG. 1 is a schematic diagram of the air circuit control of the present invention;
FIG. 2 is a top plan view of the roof box structure of the present invention;
FIG. 3 is a schematic view of the air path of the first air door of the present invention when opened (first two-position three-way pull valve open);
FIG. 4 is a schematic view of the air path of the first air door of the present invention when opened (second position three-way pull valve open);
FIG. 5 is a front view of the present invention;
fig. 6 is a schematic view of the open state of the damper of the present invention.
Reference numerals: 1. the system comprises an air inlet main valve, 2, an air source processing element, 3 or 11, a two-position three-way pilot valve, 4 or 12, a second two-position three-way hand-pull valve, 5 or 13, a first two-position three-way hand-pull valve, 6 or 14, a large two-position five-way locking valve, 7 or 10, a small two-position five-way locking valve, 8 or 9, a one-way throttle valve, 15, a driving cylinder, 16, a pressure relief cylinder, 17, a left door leaf, 18, a right door leaf, 19, a top box, 20, a door post, 21, an air path control system, 22, a transverse rib, 23, a rear cavity air supply pipe, 24, a front cavity air supply pipe, 25, a first pilot control air pipe, 26, a second pilot control air pipe, 27, a standard pedestrian door and 28.
Detailed Description
In order to make the technical objects, technical solutions and advantageous effects of the present invention more clear, the technical solutions of the present invention are further described below with reference to fig. 1 to 6 and specific embodiments.
Embodiment of full servo safety interlock damper:
the full-servo safety interlocking air door comprises two air doors, each air door comprises two door posts 20, a left door leaf 17 and a right door leaf 18 are symmetrically arranged between the two door posts 20, the left door leaf 17 and the right door leaf 18 are arc-shaped door leaves with the same structure, a plurality of transverse ribs 22 are arranged on the arc-shaped door leaves from top to bottom, the door body is of an arc-shaped design, compared with a flat door leaf, the deformation resistance of the door body is enhanced, the two doors are obliquely butted, the pressure of wind pressure acts on the door body, and the wind pressure perpendicular to the door body can be reduced because the door body is obliquely butted; meanwhile, the door body adopts an arc-shaped design, and transverse ribs 22 are arranged on the upper part and the lower part of the door body, so that the structure has deformation resistance better than that of a flat door;
a top box 19 is respectively arranged above two door posts 20 of each air door, the top box 19 comprises a rectangular frame and a triangular frame which are fixedly connected into a whole, the length of the rectangular frame is identical to the width of the air door, the width of the rectangular frame is identical to the width of the door posts 20, the triangular frame is arranged on one side close to the left door leaf 17 and the right door leaf 18, the vertex angle alpha of the triangular frame is 140 degrees, and the closing angle of the left door leaf 17 and the right door leaf 18 is 140 degrees.
The top box 19 structure makes the closed angle of the left door leaf 17 and the right door leaf 18 changed from 180 degrees of the flat plate door to 140 degrees, if the closed angle of the two doors is a 180-degree plane structure, the pressure resistance is zero once the pressure deformation exceeds 180 degrees, the design not only avoids the problem of zero pressure resistance, but also greatly increases the power for opening the door leaves when the negative pressure is overlarge.
The invention further comprises two groups of pneumatic components for driving the left door leaf 17 and the right door leaf 18 and a set of air channel control system 21 for controlling the pneumatic components, wherein the air channel control system 21 is arranged in the top box 19 and the door post 20, each group of pneumatic components respectively comprises two driving air cylinders 15 corresponding to the left door leaf 17 and the right door leaf 18, cylinder bases of the driving air cylinders 15 are arranged on a rectangular frame through hinged supports, piston rods of the driving air cylinders 15 are hinged with the corresponding left door leaf 17 or right door leaf 18, and the two air doors are in open and closed interlocking through the air channel control system 21.
As one embodiment of the present invention, the air path control system 21 includes an air inlet main valve 1, an air source processing element 2, an air path a and an air path B, where the air source processing element 2 is connected to the air path a and the air path B through a tee respectively;
the gas circuit A and the gas circuit B have the same structure, the gas circuit A comprises a two-position three-way pilot valve 3, a first two-position three-way hand-operated valve 5, a second two-position three-way hand-operated valve 4, a large two-position five-way locking valve 6 and a small two-position five-way locking valve 7, the gas circuit B comprises a two-position three-way pilot valve 11, a first two-position three-way hand-operated valve 13, a second two-position three-way hand-operated valve 12, a large two-position five-way locking valve 14 and a small two-position five-way locking valve 10, the two-position three-way pilot valve, the first two-position three-way hand-operated valve, the second two-position three-way hand-operated valve, the large two-position five-way locking valve and the small two-position five-way locking valve are all pneumatic control valves, and the pneumatic control valves are all of the prior structure, and the specific structure is not described;
in a normal state, the working ports A of the two-position three-way pilot valve, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are communicated with the exhaust port R, and the working ports A of the large two-position five-way locking valve and the small two-position five-way locking valve are communicated with the air inlet P;
in the ventilation state, the working ports A of the two-position three-way pilot valve, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are communicated with the air inlet P, and the working ports B of the large two-position five-way locking valve and the small two-position five-way locking valve are communicated with the air inlet P;
the working ports A of the two-position three-way pilot valves 3 and 11 are connected with the air source processing element 2, the air inlets P of the two-position three-way pilot valves 3 and 11 are respectively connected with the air inlets P of the first two-position three-way hand-pulled valves 5 and 13 and the second two-position three-way hand-pulled valves 4 and 12 through three-way valves, the working ports A of the first two-position three-way hand-pulled valves 5 and 13 and the working ports A of the second two-position three-way hand-pulled valves 4 and 12 are mutually connected, and the air outlets R of the first two-position three-way hand-pulled valves 5 and 13 and the air outlets R of the second two-position three-way hand-pulled valves 4 and 12 are respectively connected with the control ports of the large two-position five-way locking valves 6 and 14;
the air inlets P of the large two-position five-way blocking valves 6 and 14 are connected with the air source processing element 2, the working ports B of the large two-position five-way blocking valves 6 and 14 are respectively connected with the rear cavity air supply pipe 23 and the control ports of the small two-position five-way blocking valves 7 and 10 through three-way joints, the working ports A of the large two-position five-way blocking valves 6 and 14 are respectively connected with the front cavity air supply pipe 24 and the air inlets P of the small two-position five-way blocking valves 7 and 10 through three-way joints, the working ports A of the small two-position five-way blocking valves 7 and 10 in the air path A are connected with the control ports of the two-position three-way pilot valves 3 and 11 of the air path B through a first pilot control air pipe 25, and the working ports A of the small two-position five-way blocking valves 7 and 10 in the air path B are connected with the control ports of the two-position three-way pilot valves 3 and 11 through a second pilot control air pipe 26;
the air path A corresponds to a first air door, the air path B corresponds to a second air door, the rear cavity air supply pipes 23 in the two air paths are respectively communicated with the rear cavity of each driving cylinder 15 in the corresponding air door through air pipes, and the front cavity air supply pipes 24 in the two air paths are respectively communicated with the front cavity of each driving cylinder 15 in the corresponding air door through air pipes.
As one embodiment of the invention, the air path a comprises a one-way throttle valve 8, and the air path B comprises a one-way throttle valve 9, and the one-way throttle valves 8 and 9 are respectively connected with the exhaust port R of the first two-position three-way hand-pulled valve and the exhaust port R of the second two-position three-way hand-pulled valve. A one-way throttle valve may be used for exhaust.
As one of the embodiments of the present invention, the air source treating element 2 includes an air filter, a pressure reducing valve, and an oiler.
As one embodiment of the invention, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are respectively and correspondingly arranged on the front side and the rear side of the air door. Through the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve which are arranged on the two sides of the air door, the air door can be controlled to open from the front side and the rear side of the air door so as to carry out through flow.
As one embodiment of the present invention, the pneumatic assembly further includes a pressure relief cylinder 16, wherein a cylinder seat of the pressure relief cylinder 16 is installed in the top box 19 through a hinged seat, a piston rod of the pressure relief cylinder 16 extends out to be in pressing contact with the left door leaf 17 or the right door leaf 18, a rear cavity of the pressure relief cylinder 16 is connected with a rear cavity air supply pipe 23 in the air path through an air pipe, and a front cavity of the pressure relief cylinder 16 is connected with a front cavity air supply pipe 24 in the air path through an air pipe. Since the left door leaf 17 or the right door leaf 18 is opened upwind, when the door is opened, the pressure relief cylinder 16 pushes the left door leaf 17 or the right door leaf 18, and the resistance of the door opening can be reduced.
As one embodiment of the invention, the keels of the top box 19 and the door post 20 are square steel pipes, the outer skins of the two surfaces of the arc-shaped door leaf are steel plates, and polyurea is sprayed on the surfaces of the steel plates. The polyurea material has the advantages of flame retardance, strong corrosion resistance and high elasticity, and can effectively improve the double-sided safety of the door leaf.
As one embodiment of the invention, a standard pedestrian door 27 is arranged on one of the arc-shaped door leaves of each air door, and a lookout window 28 is arranged on each arc-shaped door leaf.
The air path control system 21 of the invention is connected with two air doors through two air paths, and realizes the functions of opening, closing and locking each other, and the specific implementation modes are as follows:
as shown in fig. 1, 3 and 4, the air source enters the air source processing element 2 through the air inlet main valve 1, and is conveyed to the whole system after being processed by filtration and the like, in the air path a, when any one of the first two-position three-way hand-pulled valve 5 and the second two-position three-way hand-pulled valve 4 (respectively correspondingly arranged on the front side and the rear side of the air door) in the air path a is opened, the control air path of the first air door is communicated, and two results are that:
(1) After the air source reaches the large two-position five-way locking valve 6 of the air path A, the large two-position five-way locking valve 6 commutates, and the air source is conveyed to the rear cavities of the driving cylinder 15 and the pressure relief cylinder 16 of the first air door through the working port B of the large two-position five-way locking valve 6 to push the left door leaf 17 and the right door leaf 18 of the first air door to be opened;
(2) Meanwhile, the air source is switched over from the working port B of the large-position five-way locking valve 6 to the control port of the small-position five-way locking valve 7, so that the small-position five-way locking valve 7 is switched off at the air inlet of the small-position five-way locking valve 7, the first pilot control air pipe 25 is free of the air source, the two-position three-way pilot valve 11 in the second air door is in a closed state, whether the first two-position three-way hand-pull valve 13 or the second two-position three-way hand-pull valve 12 in the air channel B is opened or not, the air source cannot reach the control port of the large-position five-way locking valve 14, no pilot pressure exists at the control port of the large-position five-way locking valve 14, the air source cannot provide power for the driving air cylinder 15 of the second air door through the large-position five-way locking valve 14 in the air channel B, and the second air door can still be in the closed state, namely the locking is formed.
As shown in fig. 3 or fig. 4, in the control air path of the first air door, the air source can directly reach the control port of the two-position three-way pilot valve 3 of the air path a from the air source processing element 2 through the large two-position five-way locking valve 14, the small two-position five-way locking valve 10 and the second pilot control air pipe 26 in the air path B in sequence, so that the working port a of the two-position three-way pilot valve 3 of the air path a is communicated with the air inlet P, and the air source reaches the control port of the large two-position five-way locking valve 6 through the first two-position three-way hand pulling valve 5 or the second two-position three-way hand pulling valve 4 after coming out of the two-position three-way pilot valve 3, so that the large two-position five-way locking valve 6 is reversed.
Similarly, when the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve (respectively and correspondingly arranged at the front side and the rear side of the air door) in the air passage B are opened, the control air passage of the second air passage is communicated, and two results are obtained:
(1) After the air source reaches the large two-position five-way locking valve of the air path B, the large two-position five-way locking valve is reversed, and the air source is conveyed to the rear cavities of the driving cylinder 15 and the pressure relief cylinder 16 of the second air door through the working port B of the large two-position five-way locking valve to push the left door leaf 17 and the right door leaf 18 of the second air door to be opened;
(2) Meanwhile, the air source is switched to the control port of the small two-position five-way locking valve through the working port B of the large two-position five-way locking valve, so that the small two-position five-way locking valve is switched off at the air inlet of the small two-position five-way locking valve, the second pilot control air pipe 26 is free of the air source, the two-position three-way pilot valve in the first air door is in a closed state, whether the first two-position three-way hand-operated valve or the second two-position three-way hand-operated valve in the air channel A is opened or not, the air source cannot reach the control port of the large two-position five-way locking valve, the control port of the large two-position five-way locking valve is free of pilot pressure, the air source cannot provide power for the driving cylinder 15 of the first air door through the large two-position five-way locking valve in the air channel A, and the first air door can still be in a closed state, namely the locking is formed.
In the control air path of the second air path air door, the air source can directly reach the control port of the two-position three-way pilot valve of the air path B from the air source processing element 2 through the large two-position five-way locking valve, the small two-position five-way locking valve and the second pilot control air pipe 26 in sequence, so that the working port A of the two-position three-way pilot valve of the air path B is communicated with the air inlet P, and the air source reaches the control port of the large two-position five-way locking valve through the first two-position three-way hand-pull valve or the second two-position three-way hand-pull valve after coming out of the two-position three-way pilot valve, so that the large two-position five-way locking valve is reversed.
The above embodiments are not limited in any way by the shape, materials, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the protection scope of the technical solution of the present invention.
Claims (6)
1. Full servo safety interlocking air door, including the twice air door, every air door all includes two gateposts, and left door leaf and right door leaf, its characterized in that are installed to symmetry between two gateposts: the left door leaf and the right door leaf are arc-shaped door leaves with the same structure, and a plurality of transverse ribs are arranged on the arc-shaped door leaves from top to bottom;
a top box is respectively arranged above two door posts of each air door, the top box comprises a rectangular frame and a triangular frame which are fixedly connected into a whole, the length of the rectangular frame is identical to the width of the air door, the width of the rectangular frame is identical to the width of the door posts, the triangular frame is arranged on one side close to the left door leaf and the right door leaf, the vertex angle alpha of the triangular frame is 140 degrees, and the closing angle of the left door leaf and the right door leaf is 140 degrees;
the air channel control system is arranged in the top box and the door post, each group of air channel control system comprises two driving air cylinders respectively corresponding to the left door leaf and the right door leaf, a cylinder seat of each driving air cylinder is arranged on the rectangular frame through a hinged support, a piston rod of each driving air cylinder is hinged with the corresponding left door leaf or right door leaf, and two air doors are opened and closed through the air channel control system to be interlocked;
the gas path control system comprises a gas inlet main valve, a gas source processing element, a gas path A and a gas path B, wherein the gas source processing element is respectively connected with the gas path A and the gas path B through a tee joint;
the air channel A and the air channel B have the same structure, and respectively comprise a two-position three-way pilot valve, a first two-position three-way hand-pull valve, a second two-position three-way hand-pull valve, a large two-position five-way locking valve and a small two-position five-way locking valve;
in a normal state, the working ports A of the two-position three-way pilot valve, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are communicated with the exhaust port R, and the working ports A of the large two-position five-way locking valve and the small two-position five-way locking valve are communicated with the air inlet P;
in the ventilation state, the working ports A of the two-position three-way pilot valve, the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are communicated with the air inlet P, and the working ports B of the large two-position five-way locking valve and the small two-position five-way locking valve are communicated with the air inlet P;
the working port A of the two-position three-way pilot valve is connected with the air source processing element, the air inlet P of the two-position three-way pilot valve is respectively connected with the air inlets P of the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve through a tee joint, the working port A of the first two-position three-way hand-pulled valve and the working port A of the second two-position three-way hand-pulled valve are mutually connected, and the air outlet R of the first two-position three-way hand-pulled valve and the air outlet R of the second two-position three-way hand-pulled valve are respectively connected with the control ports of the large two-position five-way locking valve;
the working port A of the small two-position five-way locking valve in the air path A is connected with the control port of a two-position three-way pilot valve of the air path B through a first pilot control air pipe, and the working port A of the small two-position five-way locking valve in the air path B is connected with the control port of a two-position three-way pilot valve of the air path A through a second pilot control air pipe;
the air passage A corresponds to a first air door, the air passage B corresponds to a second air door, rear cavity air supply pipes in the two air passages are respectively communicated with rear cavities of driving cylinders in the corresponding air doors through air pipes, and front cavity air supply pipes in the two air passages are respectively communicated with front cavities of driving cylinders in the corresponding air doors through air pipes;
the air path A and the air path B also respectively comprise a one-way throttle valve, and the one-way throttle valves are respectively connected with an exhaust port R of the first two-position three-way hand-pulled valve and an exhaust port R of the second two-position three-way hand-pulled valve;
the air source treatment element comprises an air filter, a pressure reducing valve and an oil mist device;
the first two-position three-way hand-pulled valve and the second two-position three-way hand-pulled valve are respectively and correspondingly arranged on the front side and the rear side of the air door.
2. The full servo safety interlock damper as recited in claim 1 wherein: the pneumatic assembly further comprises a pressure relief cylinder, a cylinder seat of the pressure relief cylinder is arranged in the top box through a hinged support, a piston rod of the pressure relief cylinder stretches out and then is in pressing contact with the left door leaf or the right door leaf, a rear cavity of the pressure relief cylinder is connected with a rear cavity air supply pipe in the air passage through an air pipe, and a front cavity of the pressure relief cylinder is connected with a front cavity air supply pipe in the air passage through an air pipe.
3. The full servo safety interlock damper as recited in claim 1 wherein: the keels of the top box and the door posts are square steel pipes, the outer skins of the two surfaces of the arc-shaped door leaf are steel plates, and polyurea is sprayed on the surfaces of the steel plates.
4. The full servo safety interlock damper as recited in claim 1 wherein: standard pedestrian doors are arranged on one of the arc-shaped door leaves of each air door, and observation windows are arranged on each arc-shaped door leaf.
5. The method for controlling a full servo safety interlock damper as recited in claim 2, wherein: the method comprises the following steps:
a. the air source enters the air source treatment element through the air inlet main valve, and is conveyed to the whole system after being filtered;
b. one of the air doors is opened: opening a first two-position three-way hand-pulled valve or a second two-position three-way hand-pulled valve in the air passage A, switching on a control air passage of the first air door, reversing the large two-position five-way locking valve after an air source reaches the large two-position five-way locking valve of the air passage A, conveying the air source to rear cavities of each driving cylinder and the pressure relief cylinder of the first air door through a working port B of the large two-position five-way locking valve, and pushing a left door leaf and a right door leaf of the first air door to be simultaneously opened;
c. locking the other air door: meanwhile, the air source is switched to the control port of the small two-position five-way locking valve through the working port B of the large two-position five-way locking valve, so that the small two-position five-way locking valve is switched off, the air inlet of the small two-position five-way locking valve is blocked, the first pilot control air pipe is free of the air source, the two-position three-way pilot valve in the second air door is in a closed state, no matter whether the first two-position three-way hand-operated valve or the second two-position three-way hand-operated valve in the air channel B is opened or not, the air source cannot reach the control port of the large two-position five-way locking valve, the control port of the large two-position five-way locking valve is free of pilot pressure, the air source cannot provide power for the driving cylinder of the second air door through the large two-position five-way locking valve in the air channel B, and the second air door is still in a closed state, so that locking is formed.
6. The method for controlling a full servo safety interlock damper as recited in claim 5, wherein: the reversing process of the large two-position five-way locking valve in the step b is as follows: the air source directly passes through the big two-position five-way locking valve, the small two-position five-way locking valve and the second pilot control air pipe in the air path B from the air source processing element to reach the control port of the two-position three-way pilot valve of the air path A, so that the working port A of the two-position three-way pilot valve of the air path A is communicated with the air inlet P, and the air source passes through the first two-position three-way hand-pull valve or the second two-position three-way hand-pull valve to reach the control port of the big two-position five-way locking valve after coming out of the two-position three-way pilot valve, so that the big two-position five-way locking valve is reversed.
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| CN202110412846.6A CN113513355B (en) | 2021-04-16 | 2021-04-16 | Full-servo safety interlocking air door and control method |
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| CN202110412846.6A CN113513355B (en) | 2021-04-16 | 2021-04-16 | Full-servo safety interlocking air door and control method |
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| CN113513355B true CN113513355B (en) | 2023-09-19 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1155771A1 (en) * | 1983-04-26 | 1985-05-15 | Институт Горного Дела Ан Казсср | Ventilation door |
| CN201007218Y (en) * | 2007-02-01 | 2008-01-16 | 大同煤矿集团力泰密封有限责任公司 | Full servo safety interlock air door |
| CN201103405Y (en) * | 2007-07-25 | 2008-08-20 | 山西焦煤集团有限责任公司 | Latch type pneumatic wind gate interlocking device |
| CN203308491U (en) * | 2013-04-16 | 2013-11-27 | 大同煤矿集团衡安装备有限公司 | Positive-negative linkage pneumatic air door |
| KR20170012956A (en) * | 2015-07-27 | 2017-02-06 | 박영호 | Power absorption device for sliding door, power absorption device, guide rail and sliding door system |
| CN211715159U (en) * | 2020-03-04 | 2020-10-20 | 安徽理工大学 | Novel intelligent control system for underground air door |
| CN214660307U (en) * | 2021-04-16 | 2021-11-09 | 大同煤矿集团衡安装备股份有限公司 | Full-servo safety interlocking air door for mine |
-
2021
- 2021-04-16 CN CN202110412846.6A patent/CN113513355B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1155771A1 (en) * | 1983-04-26 | 1985-05-15 | Институт Горного Дела Ан Казсср | Ventilation door |
| CN201007218Y (en) * | 2007-02-01 | 2008-01-16 | 大同煤矿集团力泰密封有限责任公司 | Full servo safety interlock air door |
| CN201103405Y (en) * | 2007-07-25 | 2008-08-20 | 山西焦煤集团有限责任公司 | Latch type pneumatic wind gate interlocking device |
| CN203308491U (en) * | 2013-04-16 | 2013-11-27 | 大同煤矿集团衡安装备有限公司 | Positive-negative linkage pneumatic air door |
| KR20170012956A (en) * | 2015-07-27 | 2017-02-06 | 박영호 | Power absorption device for sliding door, power absorption device, guide rail and sliding door system |
| CN211715159U (en) * | 2020-03-04 | 2020-10-20 | 安徽理工大学 | Novel intelligent control system for underground air door |
| CN214660307U (en) * | 2021-04-16 | 2021-11-09 | 大同煤矿集团衡安装备股份有限公司 | Full-servo safety interlocking air door for mine |
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|---|---|
| CN113513355A (en) | 2021-10-19 |
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