CN115199810A - Mining large-caliber intrinsic safety fire-fighting ball valve based on 5G fusion technology - Google Patents
Mining large-caliber intrinsic safety fire-fighting ball valve based on 5G fusion technology Download PDFInfo
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- CN115199810A CN115199810A CN202210698267.7A CN202210698267A CN115199810A CN 115199810 A CN115199810 A CN 115199810A CN 202210698267 A CN202210698267 A CN 202210698267A CN 115199810 A CN115199810 A CN 115199810A
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- 230000004927 fusion Effects 0.000 title claims abstract description 29
- 238000005065 mining Methods 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims description 28
- 238000004891 communication Methods 0.000 claims abstract description 33
- 230000003139 buffering effect Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 133
- 238000007789 sealing Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 28
- 244000027321 Lychnis chalcedonica Species 0.000 claims description 9
- 235000017899 Spathodea campanulata Nutrition 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims 3
- 239000013307 optical fiber Substances 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 4
- 239000004429 Calibre Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 28
- 238000011144 upstream manufacturing Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
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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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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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
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model provides a mining heavy-calibre intrinsic safety fire control ball valve based on 5G fuses technique, sets up in the mine tunnel for the switching of control mine fire control pipeline, its characterized in that, fire control ball valve includes install bin, drive module, control communication module, ball valve body and buffering case, the install bin sets up in the mine tunnel, drive module and control communication module set up in the install bin, the install bin can provide certain protection for drive module and control communication module, drive module is controlled by control communication module, and the mine is provided with mine safety console outward, carry out the communication through 5G fusion technique between control communication module and the mine safety console and be connected, the reaction is rapider, and the valve that can accurate control corresponds the region is opened and is closed, even surrounded by high temperature dense smoke around the valve also can normally open moreover.
Description
Technical Field
The invention relates to the technical field of mine intelligent fire safety, in particular to a mine intelligent fire safety protection device, which comprises the following components in parts by weight: a mining large-caliber intrinsic safety fire-fighting ball valve based on a 5G fusion technology.
Background
Underground mining roadways are often at a great risk of casualties in the event of an accident because of their particular geographical location. And the mine disaster caused by the fire causes in mine accidents accounts for a quite high proportion, and high temperature and dense smoke caused by the fire cause have extremely strong killing capability in the roadway with poor ventilation.
Therefore, the fire-fighting system can be arranged in the mine roadway at present, so that water can be timely taken to extinguish fire when a fire disaster happens in the roadway, and property loss and casualties are reduced. But basically all need manually open the valve and just can get the water and put out a fire, narrow dark in the tunnel, in case catch a fire, personnel in the mine are absorbed in the fear state very easily, can't be correct quick open valve. On the other hand, the length of the underground mine tunnel is generally longer, the water pipeline with longer length is easy to generate strong water hammer effect, the water pipeline is seriously damaged, and the fire valve on the market can not be directly applied to the mine for use basically. The invention patent with the patent number of CN113074267B discloses an intelligent fire valve, which still adopts a manual opening mode, the function of automatically triggering to spray water for fire extinguishing is only to extinguish a fire source near the valve and cannot enable the fire valve to be opened, and the mode of eliminating the water hammer effect is only to arrange a plurality of hollow rubber rings for buffering, the solution of the water hammer effect has limited capability and can only be applied to a service environment with weak water hammer effect, the fire-fighting water pipeline under a mine has long length and large diameter, the pressure of water flow is also large, the generated water hammer effect is also stronger, and the solution of the hollow rubber rings cannot be applied.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology.
The technical scheme of the invention is as follows:
a mining large-caliber intrinsic safety fire-fighting ball valve based on a 5G fusion technology is arranged in a mine roadway and used for controlling the opening and closing of a mine fire-fighting pipeline, the fire-fighting ball valve comprises an installation box, a driving module, a control communication module, a ball valve body and a buffer box, the installation box is arranged in the mine roadway, the driving module and the control communication module are arranged in the installation box, dust and water vapor can permeate through the mine roadway, the driving module and the control communication module are both precise electronic equipment and are easily damaged by corrosion of water and dust, the installation box can provide certain protection for the driving module and the control communication module, the driving module is controlled by the control communication module, a mine safety console is arranged outside a mine, the control communication module and the mine safety console are in communication connection through the 5G fusion technology, the reaction is quicker, the opening and closing of a valve corresponding area can be precisely controlled, and the valve can be normally opened even if the periphery of the valve is surrounded by high-temperature dense smoke;
the ball valve body comprises a valve casing, a valve core ball and a valve rod, the valve core ball is rotatably arranged in the valve casing, the lower end of the valve rod extends into the valve casing to be connected with the valve core ball, the upper end of the valve rod extends out of the valve casing to be connected with a driving module, the driving module drives the valve rod to rotate, the valve rod can drive the valve core ball to horizontally rotate, the left side and the right side of the valve casing are provided with a water inlet and a water outlet which are respectively connected with an upstream fire pipeline and a downstream fire pipeline, the lower surface of the valve casing is provided with a positive pressure port and a negative pressure port, the middle of the valve core ball is provided with a flow passage, openings at two ends of the flow passage are the same as the diameters of the water inlet and the water outlet, when the fire valve is in an open state, water in an upstream fire pipeline enters the fire ball valve from the water inlet, flows through the water flowing channel and flows into a downstream fire pipeline from the water outlet, two pressure relief channels are respectively arranged on two sides of the water flowing channel, each pressure relief channel is provided with a first opening in the horizontal direction and a second opening facing downwards, the first opening and the water flowing channel are at the same horizontal height and are matched with the water inlet and the water outlet in shape and size, the shape and size of the second opening are matched with the shape and size of the positive pressure port and the negative pressure port, and when a valve core ball of the fire ball valve is closed by rotating 90 degrees, the water inlet and the water outlet are connected with the first openings of the corresponding pressure relief channels;
the utility model discloses a ball valve, including the positive pressure cushion chamber of positive pressure cushion chamber, positive pressure cushion chamber upper end is connected with the positive pressure mouth, the lower extreme and the negative pressure mouth of negative pressure cushion chamber are connected, respectively be provided with one in positive pressure cushion chamber and the negative pressure cushion chamber and can be inside gliding buffering stopper from top to bottom at the cavity, make the baffle-box can collect and eliminate positive and negative water hammer function in an organic whole.
As above a mining heavy-calibre intrinsic safety fire control ball valve based on 5G fuses technique, the valve casing comprises casing portion and lid portion, the centre of casing portion is provided with the installation cavity, be provided with the sealing in the installation cavity, the sealing is installed between valve core ball and installation cavity, the left side of installation cavity is provided with the opening, sealing and valve core ball can be followed during left opening installation cavity, lid portion installs on the opening of installation cavity one side, prevents that the inside subassembly of installation cavity from deviating from.
Furthermore, the middle of the sealing portion is provided with a valve core cavity, the shape of the valve core cavity is matched with that of the valve core ball, the sealing portion facilitates assembly of the valve core ball on the one hand, and on the other hand, the sealing portion plays a certain sealing role to prevent the fire-fighting ball valve from leaking water.
Furthermore, the left and right sides of sealing portion is provided with the through hole of being connected with water inlet and delivery port, the downside of sealing portion is provided with corresponding pressure release hole in the relative position of pressure release passageway, the upside of sealing portion is provided with the connecting rod hole, the diameter in connecting rod hole and the diameter of valve rod cooperate.
As described above, the mining large-caliber intrinsically safe fire-fighting ball valve based on the 5G fusion technology is characterized in that the upper side of the valve core ball is an upper arc surface, a connecting groove is arranged in the middle of the upper arc surface, the lower end of the valve rod can be accommodated in the connecting groove to be inserted to drive the valve core ball to rotate, the front side and the rear side of the valve core ball are respectively a front arc surface and a rear arc surface, the middle of the front arc surface and the middle of the rear arc surface are respectively provided with a front opening and a rear opening, the front opening and the rear opening are communicated to form a water flowing channel, the left side and the right side of the valve core ball are respectively a left arc surface and a right side first opening, the lower side of the valve core ball is a lower arc surface, the two second openings are arranged on the lower arc surface and are in mirror symmetry with the central shaft of the valve core ball, and the left side first opening and the right side first opening are respectively communicated with the left side second opening and the right side second opening to form a corresponding pressure relief channel.
Preferably, the valve core ball water flowing channel is cylindrical, and the diameter of the whole water flowing channel is not smaller than the diameters of the water inlet and the water outlet. The water flow is prevented from being blocked when passing through the fire-fighting ball valve.
Preferably, the second opening diameter of the pressure relief channel is not more than half the first opening diameter. Too large of a second opening can occupy too much area, resulting in no way on the valve core ball to have two second openings facing downward at the same time.
Preferably, if the pressure relief passage is too narrow, the impact force of the positive water hammer effect borne by the fire ball valve is increased, so that the minimum diameter in the pressure relief passage is not less than 1/3 of the diameter of the first opening.
Preferably, the minimum wall thickness between the water flowing channel and the pressure relief channel is not less than 5mm. Guarantee the structural strength of fire control ball valve, avoid the fire control ball valve to be strikeed and damage by water pressure.
In order to be capable of dealing with a large water hammer effect by a small volume, the cross sections of the positive pressure buffer cavity and the negative pressure buffer cavity are circular, the diameters of the positive pressure buffer cavity and the negative pressure buffer cavity are not smaller than the diameter of the water flowing channel, and the size of the positive pressure buffer cavity and the negative pressure buffer cavity is reduced while the capacity of the positive pressure buffer cavity and the negative pressure buffer cavity is guaranteed to be enough to deal with the water hammer effect of the fire fighting pipeline. On the other hand, the thickness of the buffer plug is not less than 5cm, so that the buffer plug is prevented from inclining or overturning in the positive pressure buffer cavity and the negative pressure buffer cavity.
The buffer plug divides the positive pressure buffer cavity and the negative pressure buffer cavity into an upper cavity and a lower cavity, and in order to improve the capacity of the buffer box to resist the positive water hammer effect, gas with the pressure of 1-2 kilopascals is filled in the lower cavity of the positive pressure buffer cavity.
The invention has the beneficial effects that:
1. according to the mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology, the fire-fighting ball valve is in communication connection with the mine safety control console by adopting the 5G fusion technology, the opening and closing can be controlled by the mine safety control console, the reaction is quicker, and the fire-fighting ball valve is more accurate and effective in responding to the fire on a mine roadway;
2. according to the mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology, a buffer box is arranged on the fire-fighting ball valve to buffer positive and negative water hammer effects, so that a ball valve body and a fire-fighting pipeline are effectively protected;
3. according to the mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology, the positive pressure buffer cavity and the negative pressure buffer cavity are arranged in the buffer box at the same time, so that the positive and negative water hammer effects can be simultaneously responded, and the volume occupation is reduced;
4. according to the mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology, the lower cavity of the positive pressure buffer cavity is filled with gas with the pressure of 1-2 kilopascals, and the capability of the buffer box for buffering the positive water hammer effect is effectively improved.
Drawings
The aspects and advantages of the present application will become apparent to those skilled in the art from a reading of the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
In the drawings:
fig. 1 is a schematic structural diagram of a 5G fusion technology-based mining large-caliber intrinsic safety fire-fighting ball valve in embodiment 1;
FIG. 2 is a view showing the internal structure of the installation case in embodiment 1;
fig. 3 is an internal structural view of the ball valve body in the closed state in embodiment 1;
fig. 4 is an internal structural view of the ball valve body in an open state in embodiment 1;
FIG. 5 is a front view of a spool ball in example 1;
FIG. 6 is a side view of the cartridge ball of example 1;
FIG. 7 is a top view of the cartridge ball of example 1;
FIG. 8 is a bottom view of the valve core ball of embodiment 1;
FIG. 9 is a schematic view showing the structure of a seal part in embodiment 1;
FIG. 10 is a disassembled top view of the sealing part in the embodiment 1;
fig. 11 is a disassembled bottom view of the sealing part in embodiment 1;
FIG. 12 is a view showing an internal structure of a buffer tank in embodiment 1;
the components represented by the reference numerals in the figures are:
1. installing a box; 2. a drive module; 21. a drive motor; 22. a gearbox; 3. controlling the communication module; 4. a ball valve body; 41. a valve housing; 411. a water inlet; 412. a water outlet; 413. a positive pressure port; 414. a negative pressure port; 415. a housing portion; 416. a lid portion; 417. a mounting cavity; 42. a valve core ball; 421. a water flow channel; 422. A pressure relief channel; 423. a first opening; 424. a second opening; 425. connecting grooves; 43. a valve stem; 44. a sealing part; 441. a spool cavity; 442. a, a flange ring; 443. b, flange ring; 444. c, a flange ring; 445. d, a flange ring; 446. a pressure relief vent; 447. a connecting rod hole; 5. a buffer tank; 51. a positive pressure buffer chamber; 52. a negative pressure buffer chamber; 53. a buffer plug; 54. a pressure sensor.
Detailed Description
The invention will now be further described with reference to specific embodiments and further examples, which are given by way of illustration only and are not intended to limit the scope of the invention.
The specific implementation mode is as follows:
referring to fig. 1-12, a mining large-caliber intrinsic safety fire-fighting ball valve based on 5G fusion technology is arranged in a mine tunnel and used for controlling the opening and closing of a mine fire-fighting pipeline, the fire-fighting ball valve comprises an installation box 1, a driving module 2, a control communication module 3, a ball valve body 4 and a buffer box 5, the installation box 1 is arranged in the mine tunnel, the driving module 2 and the control communication module 3 are arranged in the installation box 1, the mine tunnel is filled with dust and water vapor due to mining, the driving module 2 and the control communication module 3 are both precise electronic devices and are easily damaged by corrosion of water and dust, the installation box 1 can provide certain protection for the driving module 2 and the control communication module 3, the driving module 2 is controlled by the control communication module 3, and a mine safety console is arranged outside the mine, the control communication module 3 is in communication connection with the mine safety console through a 5G fusion technology, when a fire disaster occurs in a place in a mine tunnel, the mine safety console can rapidly control the corresponding fire-fighting ball valve to be opened through the 5G fusion technology after receiving a fire signal of the place, and spray water to extinguish the fire, the 5G fusion technology can effectively reduce communication delay between the mine safety console and the fire-fighting ball valve, improve the reaction speed when the fire disaster occurs, compared with a manually controlled fire-fighting valve, the valve controlled by the driving module 2 can react more rapidly, the valve in a corresponding area can be controlled to be opened and closed more accurately, and the valve can be opened and closed normally even if the periphery of the valve is surrounded by high-temperature dense smoke, which is a function that the manually opened valve does not have;
preferably, as shown in fig. 2, the driving module 2 includes a driving motor 21 and a gearbox 22, the driving motor 21 is connected to the control communication module 3 through a wire and is controlled to rotate by the control communication module 3, an output shaft of the driving motor 21 extends into the gearbox 22, the gearbox 22 is connected to the ball valve body 4, and the rotation of the high-speed low-torque output by the driving motor 21 is converted into the rotation of the low-speed high-torque after passing through the gearbox 22, so that the driving motor 21 can drive the ball valve body 4 to open and close.
The ball valve body 4 comprises a valve housing 41, a valve core ball 42 and a valve rod 43, as shown in fig. 3-8, the valve core ball 42 is rotatably arranged in the valve housing 41, the lower end of the valve rod 43 extends into the valve housing 41 to be connected with the valve core ball 42, the upper end of the valve rod 43 extends out of the valve housing 41 to be connected with a driving module 2, the driving module 2 drives the valve rod 43 to drive the valve core ball 42 to horizontally rotate, the left side and the right side of the valve housing 41 are provided with a water inlet 411 and a water outlet 412, the water inlet 411 and the water outlet 412 are respectively connected with an upstream fire fighting pipeline and a downstream fire fighting pipeline, the lower surface of the valve housing 41 is provided with a positive pressure port 413 and a negative pressure port 414, the middle of the valve core ball 42 is provided with a water flow channel 421, openings at two ends of the water flow channel 421 have the same diameter as the water inlet 411 and the water outlet 412, when the fire valve is in an open state, water in an upstream fire pipeline enters the fire ball valve from the water inlet 411, flows through the water flowing channel 421, flows into a downstream fire pipeline from the water outlet 412, two sides of the water flowing channel 421 are respectively provided with a pressure relief channel 422, the pressure relief channel 422 is provided with a first opening 423 in the horizontal direction and a second opening 424 arranged downwards, the first opening 423 and the water flowing channel 421 are at the same horizontal height and are matched with the shape and size of the water inlet 411 and the water outlet 412, the shape and size of the second opening 424 are matched with the shape and size of the positive pressure port 413 and the negative pressure port 414, and when a valve core ball 42 of the fire ball valve is closed by rotating 90 degrees, the water inlet 411 and the water outlet 412 are connected with the first opening 423 of the corresponding pressure relief channel 422;
as shown in fig. 1, the buffer tank 5 is connected to the ball valve body 4, and is internally divided into a positive pressure buffer chamber 51 and a negative pressure buffer chamber 52 which are independent of each other, the upper end of the positive pressure buffer chamber 51 is connected to the positive pressure port 413, the lower end of the negative pressure buffer chamber 52 is connected to the negative pressure port 414, the positive pressure buffer chamber 51 and the negative pressure buffer chamber 52 are respectively provided with a buffer plug 53 which can slide up and down inside the chamber, when the valve is closed, the water flow inside the part of the upstream pipeline close to the valve can form a positive water hammer effect under the inertia effect of the water, and greatly impacts the valve, and after the valve core ball 42 of the fire fighting ball valve is closed by rotating 90 degrees, the water in the water inlet 411 enters the buffer chamber 51 from the corresponding pressure relief passage 422, so that the buffer plug 53 slides down, compresses the air in the positive pressure buffer chamber 51, and effectively relieves the pressure and inertia caused by the positive water hammer effect of the water flow in the water inlet 411, thereby avoiding the fire fighting ball valve being damaged by the positive water hammer effect. When the valve is closed, the part of the downstream pipeline close to the valve can form a negative water hammer phenomenon under the inertia effect of water flow, namely, because of the rapid loss of water, the pressure inside the part of the downstream pipeline close to the valve can be smaller than the atmospheric pressure, so that the pipeline at the part is easily crushed by the atmospheric pressure and damaged, and after the valve core ball 42 of the fire-fighting ball valve is rotated for 90 degrees and closed, the downstream pipeline can be connected with the negative pressure buffer cavity 52 through the corresponding pressure relief pipeline, so that the buffer plug 53 in the negative pressure buffer cavity 52 slides upwards, the pipeline compression caused by the negative water hammer effect of the water flow at the water outlet 412 is relieved, and the downstream pipeline is prevented from being crushed and damaged by the atmospheric pressure. The intelligent fire valve disclosed in the invention patent of CN113074267B adopts the hollow rubber ring for buffering, and the method has the advantages that the cost is low enough to cope with the water hammer generated by a fire pipeline of about ten meters, but the mine tunnel moves many hundreds of meters frequently, and the mine tunnel is complicated in staggering, so that the water in the fire pipeline is often pressurized to increase the water pressure in order to extinguish the fire with the most sufficient water pressure, and the positive water hammer effect or the negative water hammer effect in the fire pipeline for the mine is more severe, and the buffering effect of the hollow rubber ring is very limited, so that the buffering can be realized only by using the air compression buffering method, the device for buffering the water hammer effect by air compression has a larger volume, and the valve with the water hammer eliminating structure mentioned in CN113108105A has the advantages that the volume of a single water hammer eliminator is already large, the space of the mine tunnel is very limited, and two water ball valve eliminators with the function of eliminating the water hammer 5 integrated into a whole are designed.
Referring to fig. 3 to 8, the valve housing 41 is composed of a housing portion 415 and a cover portion 416, a mounting cavity 417 is provided in the middle of the housing portion 415, a sealing portion 44 is provided in the mounting cavity 417, the sealing portion is mounted between the valve core ball 42 and the mounting cavity 417, an opening is provided on the left side of the mounting cavity 417, the sealing portion 44 and the valve core ball 42 can be mounted in the mounting cavity 417 through the opening on the left side, and the cover portion 416 is mounted on the opening on the side of the mounting cavity 417, so that the component in the mounting cavity 417 is prevented from being removed.
Further, a valve core cavity 441 is arranged in the middle of the installation cavity 417, the shape of the valve core cavity 441 is matched with that of the valve core ball 42, the sealing portion 44 facilitates assembly of the valve core ball 42 on one hand, and plays a certain sealing role on the other hand, so that water leakage of the fire-fighting ball valve is prevented.
As shown in fig. 9 to 11, through holes connected to the water inlet 411 and the water outlet 412 are disposed on the left and right sides of the sealing portion 44, corresponding pressure relief holes 446 are disposed on the lower side of the sealing portion 44 at positions opposite to the pressure relief passages 422, a rod hole 447 is disposed on the upper side of the sealing portion 44, and the diameter of the rod hole 447 is matched with the diameter of the valve rod 43.
The upside of valve core ball 42 is the last cambered surface, the centre of going up the cambered surface is provided with connecting groove 425, connecting groove 425 can hold the lower extreme of valve rod 43 and insert, drives valve core ball 42 and rotates, the front and back both sides of valve core ball 42 respectively are preceding cambered surface and back cambered surface, the centre of preceding cambered surface and back cambered surface respectively is provided with preceding opening and back opening, preceding opening and back opening intercommunication form flowing water passageway 421, the left and right sides of valve core ball 42 respectively is left cambered surface and right cambered surface, the centre of left side cambered surface and right cambered surface respectively is provided with left first opening 423 and the first opening 423 on right side, the downside of valve core ball 42 is the cambered surface down, be provided with two second opening 424 on the cambered surface down, two second opening 424 uses the center pin of valve core ball 42 to become mirror image bilateral symmetry, left and right first opening 423 on left side and the right side communicate with left second opening 424 and the second opening 424 on right side respectively and form corresponding pressure release passageway 422.
Preferably, the sealing portion 44 includes an a flange ring 442, a B flange ring 443, a C flange ring 444 and a D flange ring 445 from left to right, the a flange ring 442 is mirror-symmetrical to the D flange ring 445 in structure, and the B flange ring 443 is mirror-symmetrical to the D flange ring 445 in structure. The inside of the cover body part 416 is provided with a positioning groove, the bottom of the installation cavity 417 is also provided with a positioning groove with the same shape, the flange rings a 442 and D445 can be clamped into the corresponding positioning grooves for installation and positioning, the upper sides of the flange rings B443 and C444 are both provided with semicircular connecting notches, the connecting notches are combined together to form a connecting rod hole 447 for accommodating the valve rod 43 to pass through, and the valve rod 43 connected with the top end of the valve core ball 42 passes through the connecting rod hole 447 and is connected with the gearbox 22 of the drive module 2. The lower sides of the flange rings 443 and 444 are respectively provided with a pressure relief hole 446, and when the fire-fighting water valve is closed, the pressure relief hole 446 can be aligned with the second opening 424 of the pressure relief channel 422, so that the pressure relief channel 422 is connected with the buffer tank 5 and the fire fighting pipeline. The inner sides of the flange ring A442, the flange ring B443, the flange ring C444 and the flange ring D445 are curved surfaces, and the curved surfaces of the flange ring A442, the flange ring B443, the flange ring C444 and the flange ring D445 jointly form the valve core cavity 441.
Preferably, the flow channel 421 of the valve core ball 42 is cylindrical, and the diameter of the whole flow channel 421 is not smaller than the diameter of the water inlet 411 and the water outlet 412. The water flow is prevented from being blocked when passing through the fire-fighting ball valve.
Preferably, the diameter of the second opening 424 of the pressure relief channel 422 is no greater than half the diameter of the first opening 423. Too large of a second opening 424 may occupy too much area, resulting in no way on the cartridge ball 42 to provide two downward facing second openings 424 at the same time.
Preferably, if the pressure relief passage 422 is too narrow, the impact force of the positive water hammer effect received by the fire ball valve is increased, so that the minimum diameter of the pressure relief passage 422 is not less than 1/3 of the diameter of the first opening 423.
Preferably, the minimum wall thickness between the water flow channel 421 and the pressure relief channel 422 is not less than 5mm. Guarantee the structural strength of fire control ball valve, avoid the fire control ball valve to be strikeed and damage by water pressure.
Referring to fig. 12, in order to cope with a large water hammer effect with a small volume, the cross-sectional shapes of the positive pressure buffer chamber 51 and the negative pressure buffer chamber 52 are set to be circular, the positive pressure buffer chamber 51 and the negative pressure buffer chamber 52 with circular cross-sections occupy a minimum wasted volume, the volume of the buffer tank 5 can be reduced, but the diameter of the buffer tank is not smaller than that of the water flowing channel 421, and the volume of the buffer tank is reduced while the sufficient capacity of the buffer tank to cope with the water hammer effect of the fire fighting pipeline is ensured. On the other hand, the thickness of the buffer plug 53 should not be less than 5cm, so as to prevent the buffer plug 53 from inclining or overturning in the positive pressure buffer cavity 51 and the negative pressure buffer cavity 52, and the buffer box 5 loses the capability of the water hammer effect.
Preferably, the upper end of the buffer plug 53 is provided with a convex cone, and the top end of the cone is arranged right below the opening of the ball valve body 4 connected with the positive pressure buffer cavity 51 and the negative pressure buffer cavity 52, so that when the water hammer effect occurs, the generated force can be more uniformly applied to the buffer plug 53.
The buffer plug 53 divides the positive pressure buffer cavity 51 and the negative pressure buffer cavity 52 into an upper cavity and a lower cavity, and in order to improve the capability of the buffer box 5 for dealing with the positive water hammer effect, gas with the pressure of 1-2 kilopascals is filled in the lower cavity of the positive pressure buffer cavity 51. This makes it impossible to connect the positive pressure buffer chamber 51 and the negative pressure buffer chamber 52, and once they are connected, the pressure in the lower chambers is the same, and the effect of the pressurized gas to increase the buffer capacity is lost. The invention patent with the patent number CN210240657U mentions a four-way full-packet ball valve, which is applied to this embodiment to replace the ball valve body 4, and although it can also achieve the function of communicating the upstream pipeline with the downstream pipeline when opening, and connecting the upstream pipeline with the downstream pipeline and the corresponding buffer chamber when closing, it can not only communicate the upstream pipeline with the downstream pipeline when opening, but also communicate the positive pressure buffer chamber 51 with the negative pressure buffer chamber 52, so this four-way full-packet ball valve cannot be applied in this embodiment.
Preferably, the pressure sensors 54 are arranged in the lower cavities of the positive pressure buffer cavity 51 and the negative pressure buffer cavity 52, the pressure sensors 54 are in communication connection with the control communication module 3, the pressure sensors 54 can monitor the pressure in the lower cavities of the positive pressure buffer cavity 51 and the negative pressure buffer cavity 52 in real time, and transmit pressure data back to the mine safety console through the control communication module 3 in real time, when the pressure data are abnormal, faults of the corresponding fire-fighting ball valve are described, maintenance can be found conveniently and timely, and the fire-fighting ball valve can be in a state of being opened at any time.
Claims (10)
1. A mining large-caliber intrinsic safety fire-fighting ball valve based on a 5G fusion technology is arranged in a mine roadway and used for controlling opening and closing of a mine fire-fighting pipeline and is characterized by comprising an installation box (1), a driving module (2), a control communication module (3), a ball valve body (4) and a buffer box (5), wherein the installation box (1) is arranged in the mine roadway, the driving module (2) and the control communication module (3) are arranged in the installation box (1), the driving module (2) is controlled by the control communication module (3), a mine safety console is arranged outside a mine, and the control communication module (3) is in communication connection with the mine safety console through the 5G fusion technology;
the ball valve body (4) comprises a valve casing (41), a valve core ball (42) and a valve rod (43), the valve core ball (42) is rotatably arranged in the valve casing (41), the lower end of the valve rod (43) extends into the valve casing (41) to be connected with the valve core ball (42), the upper end extends out of the valve casing (41), is connected with the driving module (2), the valve rod (43) can drive the valve core ball (42) to rotate horizontally, a water inlet (411) and a water outlet (412) are arranged at the left side and the right side of the valve casing (41), the lower surface of the valve shell (41) is provided with a positive pressure port (413) and a negative pressure port (414), the middle of the valve core ball (42) is provided with a water flowing channel (421), the openings at the two ends of the water flowing channel (421) have the same diameter with the water inlet (411) and the water outlet (412), two sides of the water flow channel (421) are respectively provided with a pressure relief channel (422), the pressure relief channel (422) is provided with a first opening (423) in the horizontal direction and a second opening (424) which is arranged downwards, the first opening (423) is at the same level with the water flowing channel (421), and is matched with the shapes and the sizes of the water inlet (411) and the water outlet (412), the shape and size of the second opening (424) are matched with the shape and size of the positive pressure port (413) and the negative pressure port (414);
buffer tank (5) are connected with ball valve body (4), divide into mutually independent malleation cushion chamber (51) and negative pressure cushion chamber (52) in its inside, malleation cushion chamber (51) upper end is connected with malleation mouth (413), the lower extreme and the negative pressure mouth (414) of negative pressure cushion chamber (52) are connected, respectively be provided with one in malleation cushion chamber (51) and negative pressure cushion chamber (52) and can be in the inside gliding buffering stopper (53) from top to bottom of cavity.
2. The mining large-caliber intrinsic safety fire ball valve based on the 5G fusion technology is characterized in that the valve casing (41) is composed of a casing portion (415) and a cover portion (416), an installation cavity (417) is arranged in the middle of the casing portion (415), a sealing portion (44) is arranged in the installation cavity (417), the sealing portion is installed between a valve core ball (42) and the installation cavity (417), an opening is formed in the left side of the installation cavity (417), the sealing portion (44) and the valve core ball (42) can be installed in the installation cavity (417) from the opening in the left side, and the cover portion (416) is installed on the opening in the side of the installation cavity (417).
3. The mining large-caliber intrinsic safety fire ball valve based on the 5G fusion technology is characterized in that a valve core cavity (441) is arranged in the middle of the sealing portion (44), the shape of the valve core cavity (441) is matched with that of the valve core ball (42), through holes connected with a water inlet (411) and a water outlet (412) are formed in the left side and the right side of the sealing portion (44), a corresponding pressure relief hole (446) is formed in the opposite position of a pressure relief channel (422) in the lower side of the sealing portion (44), a connecting rod hole (447) is formed in the upper side of the sealing portion (44), and the diameter of the connecting rod hole (447) is matched with that of a valve rod (43).
4. The mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology is characterized in that the upper side of the valve core ball (42) is an upper arc surface, a connecting groove (425) is formed in the middle of the upper arc surface, the lower end of a valve rod (43) can be inserted into the connecting groove (425) to drive the valve core ball (42) to rotate, the front side and the rear side of the valve core ball (42) are respectively a front arc surface and a rear arc surface, the middle of the front arc surface and the rear arc surface is respectively provided with a front opening and a rear opening, the front opening and the rear opening are communicated to form a water flowing channel (421), the left side and the right side of the valve core ball (42) are respectively a left arc surface and a right arc surface, the middle of the left arc surface and the right arc surface is respectively provided with a left first opening (423) and a right first opening (423), the lower side of the valve core ball (42) is a lower arc surface, the lower arc surface is provided with two second openings (424), the two second openings (424) are respectively communicated with a left opening (422) and a right opening and a left opening and a second opening (423) which are respectively in mirror image of the central axis of the valve core ball (42).
5. The mining large-caliber intrinsic safety fire-fighting ball valve based on the 5G fusion technology is characterized in that a water flowing channel (421) of the valve core ball (42) is cylindrical, and the diameter of the whole water flowing channel (421) is not smaller than the diameters of a water inlet (411) and a water outlet (412).
6. The mining large-caliber intrinsically-safe fire ball valve based on 5G fusion technology as claimed in claim 5, wherein the diameter of the second opening (424) of the pressure relief channel (422) is not more than half of the diameter of the first opening (423).
7. The mining large-caliber intrinsically-safe fire-fighting ball valve based on 5G fusion technology according to claim 6, wherein the minimum diameter of the pressure relief channel (422) is not less than 1/3 of the diameter of the first opening (423).
8. The optical fiber drilling stress sensor for the water-proof mine based on the 5G fusion technology according to claim 7, wherein the minimum wall thickness between the water flow channel (421) and the pressure release channel (422) is not less than 5mm.
9. The optical fiber drilling stress sensor for the water-proof mine based on the 5G fusion technology as claimed in claim 1, wherein the cross-sectional shapes of the positive pressure buffer cavity (51) and the negative pressure buffer cavity (52) comprise circles, the diameters of the circles are not smaller than the diameter of the water flowing channel (421), and the thickness of the buffer plug (53) is not smaller than 5cm.
10. The fiber drilling stress sensor for the water-proof mine based on the 5G fusion technology as claimed in claim 9, wherein the buffer plug (53) divides the positive pressure buffer cavity (51) and the negative pressure buffer cavity (52) into an upper cavity and a lower cavity, and the lower cavity of the positive pressure buffer cavity (51) is filled with gas with the pressure of 1-2 kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210698267.7A CN115199810A (en) | 2022-06-20 | 2022-06-20 | Mining large-caliber intrinsic safety fire-fighting ball valve based on 5G fusion technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210698267.7A CN115199810A (en) | 2022-06-20 | 2022-06-20 | Mining large-caliber intrinsic safety fire-fighting ball valve based on 5G fusion technology |
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| Publication Number | Publication Date |
|---|---|
| CN115199810A true CN115199810A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210698267.7A Pending CN115199810A (en) | 2022-06-20 | 2022-06-20 | Mining large-caliber intrinsic safety fire-fighting ball valve based on 5G fusion technology |
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| Country | Link |
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| CN (1) | CN115199810A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB107225A (en) * | 1916-06-16 | 1917-06-18 | William Edward Evans | Improvements relating to Valves and Taps. |
| KR20130116150A (en) * | 2012-04-14 | 2013-10-23 | 주식회사 아세아유니온 | A valve combined with water-hammer arrester |
| CN104747749A (en) * | 2015-03-20 | 2015-07-01 | 河海大学 | Ball valve system for agricultural irrigation throttling and pipe water hammer protection and control method thereof |
| CN114542749A (en) * | 2022-03-14 | 2022-05-27 | 杭州欣卓科技有限公司 | Ball valve |
-
2022
- 2022-06-20 CN CN202210698267.7A patent/CN115199810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB107225A (en) * | 1916-06-16 | 1917-06-18 | William Edward Evans | Improvements relating to Valves and Taps. |
| KR20130116150A (en) * | 2012-04-14 | 2013-10-23 | 주식회사 아세아유니온 | A valve combined with water-hammer arrester |
| CN104747749A (en) * | 2015-03-20 | 2015-07-01 | 河海大学 | Ball valve system for agricultural irrigation throttling and pipe water hammer protection and control method thereof |
| CN114542749A (en) * | 2022-03-14 | 2022-05-27 | 杭州欣卓科技有限公司 | Ball valve |
Non-Patent Citations (1)
| Title |
|---|
| 马习贺;王振华;何新林;李文昊;: "大型灌区自压输水管道水锤防护措施研究进展", 山东农业大学学报(自然科学版), no. 02, 4 April 2018 (2018-04-04) * |
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