CN111828709A - Adjustable combined air valve for tunnel ventilation - Google Patents
Adjustable combined air valve for tunnel ventilation Download PDFInfo
- Publication number
- CN111828709A CN111828709A CN202010588266.8A CN202010588266A CN111828709A CN 111828709 A CN111828709 A CN 111828709A CN 202010588266 A CN202010588266 A CN 202010588266A CN 111828709 A CN111828709 A CN 111828709A
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- CN
- China
- Prior art keywords
- air valve
- actuating mechanism
- connecting rod
- rotatably connected
- action rod
- Prior art date
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- 238000009423 ventilation Methods 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 9
- 239000007858 starting material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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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
- E21F1/14—Air partitions; Air locks
- E21F1/145—Air locks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an adjustable combined air valve for tunnel ventilation in the technical field of air valves for tunnels, which comprises an air valve actuating mechanism, a rocker, an action rod assembly and the like, wherein the action amplitude of an air valve body of the air valve is adjusted through the action rod assembly, the opening and closing degree of a combined air valve can be adjusted in a stepless manner, the output air quantity of an axial flow fan is changed, so that the ventilation quantity switching adjustment of a short-term working condition and a long-term working condition is realized, an external PLC (programmable logic controller) can acquire a 4-20 milliampere valve position feedback signal output by the air valve actuating mechanism, the opening and closing degree of the air valve and the output air quantity of the fan are judged, the axial flow fan can be ensured to stably run in the air quantity range required by the short-term working condition and the long-term working condition only by adopting a soft starter to control the starting and stopping of the axial flow fan and combining the opening, therefore, the soft starter with stable working state and the adjustable combined air valve replace a frequency converter with higher working failure rate.
Description
Technical Field
The invention relates to the technical field of air valves for tunnels, in particular to an adjustable combined air valve for tunnel ventilation.
Background
The combined air valve is an important component of a ventilation system of the axial flow fan of the tunnel, is generally arranged on the air inlet side of the axial flow fan and plays a role in opening and closing a ventilation path, plays a role in discharging smoke in an opening state during a fire disaster and plays a role in isolating smoke and stopping fire in a closing state, and can reduce equipment abrasion caused by idling of the axial flow fan along with natural wind and adverse effects of induced current generated by idling of a fan impeller on the performance of a motor in a shutdown state, prolong the service life of the fan system, improve the reliability of the ventilation system of the axial flow fan and ensure the safety of the system. In the construction of highway tunnel ventilation engineering, in order to avoid repeated investment, the type selection of the axial flow fan is usually carried out by adopting the long-term air volume, and the rotating speed of the axial flow fan is adjusted by adopting a frequency converter, so that the fan operates in the short-term ventilation volume range. However, in actual operation of a highway tunnel, the frequency converter belongs to continuous online operation equipment, a fan is required to continuously dissipate heat, requirements on environmental cleanliness, temperature and humidity and the like are high, any software and hardware faults of the frequency converter can cause the shutdown of the whole axial flow ventilation system, the frequency converter is relatively complex in structure, various in components and parts, difficult to adapt to a field environment with high dust, high temperature and humidity, high in fault rate and increased in later-stage operation maintenance cost and personnel requirements.
Disclosure of Invention
The invention aims to provide an adjustable combined air valve for tunnel ventilation, which can replace a frequency converter through combined application with a soft starter, and can realize the effects of starting and stopping an axial flow fan and changing the running air volume.
In order to achieve the purpose, the invention provides the following technical scheme: an adjustable combined air valve for tunnel ventilation comprises an air valve actuating mechanism and an air valve bottom frame, wherein the air valve actuating mechanism is an electric control motor and an air valve actuator assembly which can receive, execute and feed back remote control instructions, the output end of the air valve actuating mechanism is fixedly connected with one end of a rocker, the other end of the rocker is rotatably connected with one end of a first connecting rod, the other end of the first connecting rod is rotatably connected with an action rod assembly, and an air valve body is fixedly mounted on the inner side wall of the air valve bottom frame;
the action rod assembly comprises an action rod, the end of the action rod is rotatably connected with the end of the first connecting rod, one end of the second connecting rod is uniformly rotatably connected to the side wall of the action rod, and the other end of the second connecting rod is rotatably connected with the air valve body.
Preferably, the air valve actuating mechanism is electrically connected with an external PLC controller, and the air valve actuating mechanism can receive and execute control commands of the external PLC controller.
Preferably, the air valve body is formed by splicing and combining a plurality of modular unit valves.
Preferably, a protective net is fixedly connected to the side wall of the air valve body.
Preferably, the material of the air valve body is hot rolled steel, stainless steel or hot galvanized steel sheet.
Compared with the prior art, the invention has the beneficial effects that: an adjustable combined air valve for tunnel ventilation is composed of an electrically controlled motor for receiving, executing and feeding back remote control command, an air valve actuator, an external PLC controller for outputting 4-20 mA current signals to said air valve actuator, an electric motor for driving a rocker to rotate, a first connecting rod swinging while moving up and down, an action rod for driving the air valve to move up and down, and a second connecting rod for driving the second connecting rod to rotate, the second connecting rod drives an air valve blade rotating shaft on an air valve body to rotate to realize the opening and closing of the air valve blade, the main body moves up and down to complete the opening and closing and opening degree adjustment of the air valve, the action amplitude of the air valve body is adjusted through an action rod assembly, the opening and closing degree of the combined air valve can be regulated in a stepless mode, the output air quantity of the axial flow fan is changed, so that the ventilation quantity switching adjustment of a short-term working condition and a long-term working condition is realized, an external PLC (programmable logic controller) can acquire a 4-20 milliampere valve position feedback signal output by an air valve executing mechanism, the opening and closing degree of the air valve and the output air quantity of the fan are judged, the axial flow fan can be ensured to stably operate in the air quantity range required by the short-term working condition and the long-term working condition only by adopting a soft starter to control the opening and closing degree of the, therefore, the soft starter with stable working state and the adjustable combined air valve replace a frequency converter with higher working failure rate.
Drawings
FIG. 1 is a front view of the main structure of the present invention;
FIG. 2 is a side view of the main structure of the present invention;
fig. 3 is a wiring diagram of the air valve actuator in the air valve actuator according to the invention.
In the figure: the air valve comprises a 1-air valve actuating mechanism, a 2-air valve bottom frame, a 3-protective screen, a 4-air valve body, a 5-action rod assembly, a 501-action rod, a 502-second connecting rod, a 6-rocker and a 7-first connecting rod.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The description of the directions (up, down, left, right, front, and rear) is made with reference to the structure shown in fig. 1 of the drawings attached to the specification, but the practical use direction of the present invention is not limited thereto.
Example (b):
referring to fig. 1-3, the present invention provides a technical solution: an adjustable combined air valve for tunnel ventilation comprises an air valve actuating mechanism 1 and an air valve bottom frame 2, wherein the air valve actuating mechanism 1 is an electric control motor and air valve actuator assembly capable of receiving, executing and feeding back a remote control instruction, the adjustable combined air valve for tunnel ventilation outputs 4-20 milliampere current signals to the air valve actuating mechanism 1 through an external PLC (programmable logic controller) on the basis that a conventional combined air valve can only provide a fully-opened state or a fully-closed state, the air valve actuating mechanism 1 starts to work after receiving the instruction, the output end of the air valve actuating mechanism 1 is fixedly connected with one end of a rocker 6, the other end of the rocker 6 is rotatably connected with one end of a first connecting rod 7, the other end of the first connecting rod 7 is rotatably connected with an action rod assembly 5, and an air valve body 4 is fixedly mounted on the inner side wall of the air valve bottom frame 2, the rocker 6 is driven by a motor to rotate, the rocker 6 rotates to drive the first connecting rod 7 to swing and simultaneously move up and down, so that the action rod assembly 5 drives the air valve body 4 to move up and down to realize the opening and closing and the opening and closing degree adjustment of the air valve, the action amplitude of the air valve body is adjusted by the action rod assembly 5, the opening and closing degree of the combined air valve can be steplessly adjusted and controlled, the output air quantity of the axial flow fan is changed, the ventilation quantity switching adjustment of a near working condition and a long-term working condition is realized, an external PLC (programmable logic controller) can collect a 4-20 milliampere valve position feedback signal output by the air valve actuating mechanism 1, the opening and closing degree of the air valve and the output air quantity of the fan are judged, the axial flow fan can be ensured to stably operate within the air quantity range required by the near working condition and the long-term working condition by combining the opening and closing, in this way, the axial flow fan can realize the adjustment of air quantity without a frequency converter, so that a soft starter and an adjustable combined air valve which are stable in working state replace the frequency converter with higher working failure rate;
the action rod assembly 5 comprises an action rod 501, the end of the action rod 501 is rotatably connected with the end of the first connecting rod 7, one end of a second connecting rod 502 is uniformly rotatably connected to the side wall of the action rod 501, and the other end of the second connecting rod 502 is rotatably connected with the air valve body 4. The rocker 6 is driven to rotate by a motor, the rocker 6 rotates to drive the first connecting rod 7 to swing and simultaneously move up and down to drive the action rod 501 to move up and down, the action rod 501 drives the second connecting rod 502 to rotate, the second connecting rod 502 drives the air valve blade rotating shaft on the air valve body 4 to rotate to realize opening and closing of the air valve blade, the main body moves up and down to complete opening and closing and opening degree adjustment of the air valve.
Specifically, the air valve actuator 1 is electrically connected with an external PLC controller, and the air valve actuator 1 can receive and execute a control command of the external PLC controller. The air valve actuating mechanism 1 is an electric control motor and an air valve actuator assembly which can receive, execute and feed back remote control instructions, 4-20 milliampere current signals are output to the air valve actuating mechanism 1 through an external PLC, the air valve actuating mechanism 1 starts to work after receiving the instructions, and the external PLC can collect 4-20 milliampere valve position feedback signals output by the air valve actuating mechanism 1 and judge the opening degree of an air valve and the output air volume of a fan.
Specifically, the air valve body 4 is formed by splicing and combining a plurality of modular unit valves. The splicing freedom degree of the modular unit valve is high, and splicing can be performed according to use requirements.
Specifically, a protective net 3 is fixedly connected to the side wall of the air valve body 4. The protective net 3 can effectively block foreign matters in the driving tunnel.
Specifically, the material of the air valve body 4 is hot rolled steel, stainless steel or hot galvanized steel sheet.
The working principle is as follows: the air valve actuating mechanism 1 is an electric control motor and an air valve actuator assembly which can receive, execute and feed back remote control instructions, an adjustable combined air valve for tunnel ventilation outputs 4-20 milliampere current signals to the air valve actuating mechanism 1 through an external PLC controller on the basis that a conventional combined air valve can only provide a full-open state or a full-close state, the air valve actuating mechanism 1 starts to work after receiving the instructions, the output end of the air valve actuating mechanism 1 is fixedly connected with one end of a rocker 6, the other end of the rocker 6 is rotatably connected with one end of a first connecting rod 7, the other end of the first connecting rod 7 is rotatably connected with an action rod assembly 5, an air valve body 4 is fixedly installed on the inner side wall of an air valve bottom frame 2, the rocker 6 is driven to rotate by the motor, the rocker 6 rotates to drive the first connecting rod 7 to swing and simultaneously move up and down, so that the action rod assembly 5 drives the air valve body 4 to move up and down to realize the opening, the action rod assembly 5 comprises an action rod 501, the end of the action rod 501 is rotatably connected with the end of the first connecting rod 7, one end of a second connecting rod 502 is uniformly rotatably connected to the side wall of the action rod 501, and the other end of the second connecting rod 502 is rotatably connected with the air valve body 4. The rocker 6 is driven to rotate by the motor, the rocker 6 drives the first connecting rod 7 to swing and simultaneously move up and down to drive the action rod 501 to move up and down, the action rod 501 drives the second connecting rod 502 to rotate, the second connecting rod 502 drives the air valve blade rotating shaft on the air valve body 4 to rotate so as to realize the opening and closing of the air valve blade, the main body moves up and down to finish the opening and closing and the opening and closing degree adjustment of the air valve, the action amplitude of the air valve body is adjusted by the action rod assembly 5, the opening and closing degree of the combined air valve can be steplessly adjusted and controlled, the output air quantity of the axial flow fan is changed, so that the ventilation quantity switching adjustment of the short-term working condition and the long-term working condition is realized, the external PLC can acquire a 4-20 milliampere valve position feedback signal output by the air valve actuating mechanism 1, the opening and closing degree of the, the stable operation of axial fan in the required amount of wind within range of recent operating mode and long-term operating mode just can be guaranteed to the degree of opening and shutting that combines combination blast gate, and through this kind of mode, axial fan need not just can realize the regulation of amount of wind through the converter to replace the higher converter of operating failure rate with the soft starter of operating condition stability and adjustable combination blast gate.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a tunnel ventilates with adjustable combination blast gate which characterized in that: the remote control device comprises an air valve actuating mechanism (1) and an air valve bottom frame (2), wherein the air valve actuating mechanism (1) is an electric control motor and air valve actuator assembly capable of receiving, executing and feeding back remote control instructions, the output end of the air valve actuating mechanism (1) is fixedly connected with one end of a rocker (6), the other end of the rocker (6) is rotatably connected with one end of a first connecting rod (7), the other end of the first connecting rod (7) is rotatably connected with an action rod assembly (5), and an air valve body (4) is fixedly installed on the inner side wall of the air valve bottom frame (2);
the action rod assembly (5) comprises an action rod (501), the end of the action rod (501) is rotatably connected with the end of the first connecting rod (7), one end of a second connecting rod (502) is uniformly rotatably connected to the side wall of the action rod (501), and the other end of the second connecting rod (502) is rotatably connected with the air valve body (4).
2. The adjustable combined air valve for tunnel ventilation according to claim 1, wherein: the air valve actuating mechanism (1) is electrically connected with an external PLC controller, and the air valve actuating mechanism (1) can receive and execute a control command of the external PLC controller.
3. The adjustable combined air valve for tunnel ventilation according to claim 1, wherein: the air valve body (4) is formed by splicing and combining a plurality of modularized unit valves.
4. The adjustable combined air valve for tunnel ventilation according to claim 1, wherein: and a protective net (3) is fixedly connected to the side wall of the air valve body (4).
5. The adjustable combined air valve for tunnel ventilation according to claim 1, wherein: the air valve body (4) is made of hot rolled steel, stainless steel or hot galvanized steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588266.8A CN111828709A (en) | 2020-06-24 | 2020-06-24 | Adjustable combined air valve for tunnel ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588266.8A CN111828709A (en) | 2020-06-24 | 2020-06-24 | Adjustable combined air valve for tunnel ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111828709A true CN111828709A (en) | 2020-10-27 |
Family
ID=72898129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588266.8A Withdrawn CN111828709A (en) | 2020-06-24 | 2020-06-24 | Adjustable combined air valve for tunnel ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111828709A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685372A (en) * | 2021-08-30 | 2021-11-23 | 华能山东石岛湾核电有限公司 | Non-return device of fan export and have its fan |
-
2020
- 2020-06-24 CN CN202010588266.8A patent/CN111828709A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685372A (en) * | 2021-08-30 | 2021-11-23 | 华能山东石岛湾核电有限公司 | Non-return device of fan export and have its fan |
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Application publication date: 20201027 |