CN112797206A - Automatic pipeline adjusting and air supplementing valve and air supplementing system - Google Patents
Automatic pipeline adjusting and air supplementing valve and air supplementing system Download PDFInfo
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- CN112797206A CN112797206A CN202110125728.7A CN202110125728A CN112797206A CN 112797206 A CN112797206 A CN 112797206A CN 202110125728 A CN202110125728 A CN 202110125728A CN 112797206 A CN112797206 A CN 112797206A
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- main shaft
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses an automatic pipeline adjusting and air compensating valve which comprises a valve body, a main shaft, a piston and an automatic pressure adjusting device, wherein the valve body is provided with an upper end cover and a lower pipe joint, the lower part of the valve body is provided with a valve cavity and a pressure balancing hole, and the upper part of the valve body is transversely provided with an air passage; the middle part of the main shaft is provided with an on-shaft through hole group, a shaft sleeve is arranged outside the on-shaft through hole group, the shaft sleeve is provided with a long slotted hole communicated with the gas channel, and a piston is arranged in the valve cavity and connected with the main shaft; the upper end of the main shaft is provided with an automatic pressure adjusting device. The invention uses the automatic adjusting air compensating valve at the reducing position and the bending position of the pipeline to form a pipeline air compensating system, and compressed air is supplemented to assist in conveying the bulk materials when the pressure of the pipeline rises due to the bulk material conveying blockage. The invention realizes the flow regulation by acting the piston through the pressure of the pipeline and driving the shaft to move up and down to control the ventilation area. The adjusting mechanism of the invention has no electric control participation, simultaneously copes with the change of bulk material conveying property, and can ensure the stable operation of the bulk material conveying system in a great adjusting range.
Description
Technical Field
The invention relates to the field of pipeline pneumatic conveying of bulk materials, in particular to an automatic pipeline adjusting and air supplementing valve and an air supplementing system.
Background
In the air conveying field of bulk cargo, because the characteristic of bulk cargo is unstable, and the material nature is not only, same kind of bulk cargo is in different storage environment, there is the difference that can have bulk cargo material nature in different periods of time in one day, including chemical composition, the particle diameter, the moisture content, the proportion, stacking form etc. all can cause the difference of material nature, these differences can be shown when carrying, too big difference can directly lead to the unable adaptation of system, consequently, can constantly improve to the ductility and the stable adaptability requirement of the complete sets and the system that are used for bulk cargo to carry, with the change of adaptation material nature, the system ductility also is as reliable and stable important performance to containing of material.
The adaptive capacity of the system is increased at the present stage, mainly a gas supplementing technology is used, the gas supplementing technology is different in the market, some gas supplementing technologies are not configured for saving investment cost, the stability is reduced during operation, and the operation cost is increased too much. Some of them are over-configured, resulting in over-high energy consumption and over-high initial investment. Part of the systems are matched according to the worst material property design, and the material property is difficult to appear in the worst working condition during operation, so that the system efficiency is too low, and the operation cost is too high. The relations among stability, accommodation adaptation, extension, investment cost and operation cost cannot be considered in various technologies, and the relations cannot be considered in multiple ways.
The existing automatic flow regulation mechanism needs to depend on an electric actuating mechanism or a pneumatic actuating mechanism to form a system which needs to be controlled electrically and controlled by a program control system in a combined manner, the multi-control complex reliability and flexibility of the participated equipment are very low, the cost is very high, the corresponding speed is low, the control accuracy and the economy are not in direct proportion, the actual practical effect is very poor, the opening degree and the flow of the flow regulation mechanism present a curve relationship, and the actual regulation range is very small.
Disclosure of Invention
The invention provides an automatic pipeline adjusting air compensating valve and an air compensating system, which ensure the stable adaptability of the system when bulk materials are changed, and ensure that the system operates according to stable pressure.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
an automatic pipeline adjusting and air compensating valve comprises a valve body, wherein the center of the valve body is provided with an upper end cover and a lower pipe joint, the shaft hole penetrates through the center of the valve body up and down, the lower part of the valve body is provided with a valve cavity, a pressure balancing hole is formed above the valve cavity and communicated with the outside, the upper part of the valve body is transversely provided with an air passage, one end of the air passage is connected with an external compressed air conveying pipeline, and the other end of the air passage is connected with; the main shaft penetrates through the shaft hole, an on-shaft through hole group is arranged on the circumferential surface of the middle part of the main shaft, a shaft sleeve is sleeved outside the main shaft and fixedly installed in the valve body, a long slotted hole is formed in the circumferential surface of the shaft sleeve and communicated with the gas channel, the gas channel is blocked and closed by the main shaft in an initial state, and the on-shaft through hole group is positioned below the gas channel; the piston is arranged in the valve cavity and is fixedly connected with the lower end of the main shaft; the automatic pressure adjusting device is arranged in the upper end cover and is connected with the upper end of the main shaft; the lower pipe joint is provided with a pressure inlet, the pressure of an external pipeline is applied to the piston through the pressure inlet to push the piston to drive the main shaft to move upwards, the main shaft is moved upwards to the position where the on-shaft through hole group of the main shaft is communicated with the gas channel, the gas channel is opened, the gas is supplied to the external material conveying pipeline until the pressure is reduced, and the automatic pressure adjusting device pushes the main shaft and the piston to move downwards to reset.
Preferably, the automatic pressure adjusting device comprises a pressure adjusting knob, a shaft end pressure lever, a spring and a scale shaft sleeve; the middle part of the upper end cover is provided with an adjusting mounting groove, the pressure adjusting knob is mounted in the adjusting mounting groove, the center of the upper end cover is provided with the shaft end pressure rod and the scale shaft sleeve, the shaft end pressure rod is connected with the main shaft and provided with a retaining ring, the scale shaft sleeve is sleeved on the shaft end pressure rod, a bottom plate is arranged above the retaining ring, and the spring is mounted between the pressure adjusting knob and the bottom plate.
Preferably, a light protective cover is arranged at the top end of the shaft end pressing rod, and the light protective cover covers the upper part of the upper end cover inside.
Preferably, the upper part of the main shaft is connected with a bearing positioning adjusting knob.
Preferably, a bushing is arranged in the valve cavity, the bushing is fixed in the valve cavity through the lower pipe joint, and the piston is provided with a piston sealing ring group which is in sliding connection with the bushing.
Preferably, the piston is connected with the bottom of the main shaft through a piston fixing assembly, and is connected with the side face of the main shaft through a flat key.
Preferably, the upper end surface of the piston is provided with a protective pad.
Preferably, the valve body is square, the upper end cover and the lower pipe joint are connected with four corners of the valve body through bolts, and sealing rings are arranged between the upper end cover and the upper end face of the valve body and between the lower pipe joint and the lower end face of the valve body.
An air supplement system adopting a pipeline automatic adjustment air supplement valve comprises a material conveying pipeline, a compressed gas pipeline and an automatic adjustment air supplement valve; the material conveying pipeline is provided with a switch ball valve connected with a lower pipe connector of the automatic adjustment air compensating valve, and a Y-shaped filter at the air inlet end of an air channel of the automatic adjustment air compensating valve is connected with the switch ball valve through a hose and then connected with the compressed air pipeline; the wafer check valve at the gas outlet end of the gas channel is connected with a switch ball valve through a hose and then connected with the material conveying pipeline through a gas supplementing pipe; when the material conveying pipeline is a horizontal pipeline or a vertical pipeline, an air supplementing angle exists between the air supplementing pipe and the material conveying pipeline; when the material conveying pipeline is a bent pipe, the air supplementing pipe is tangent to the bent vertical or horizontal material conveying pipeline, the cutting direction is the same as the material conveying direction, and the air supplementing pipe is provided with a wafer type check valve.
Preferably, a passage inlet short circuit is arranged at the gas inlet end of a gas passage of the automatic adjusting and gas supplementing valve, and the passage inlet short circuit is butted with a Y-shaped filter and is connected with the compressed gas pipeline; the air outlet end of the air channel of the automatic adjusting aeration valve is provided with a channel outlet short circuit, and the channel outlet short circuit is butted with a pair of clamp type check valves and is connected with the material conveying pipeline.
The invention realizes the flow regulation by acting the piston through the pressure of the pipeline and driving the shaft to move up and down to control the ventilation area. The flow regulating mechanism adopts the on-axis through hole group to adjust, and the control range is wide and flow and the through hole quantity of opening are directly proportional, and the adjustable resistance of reaction spring is adjustable simultaneously, and the control range is very wide, and the actual regulating variable carries out direct self-control according to the pressure of pipeline as required again, and action response speed is fast. The invention dynamically adjusts the air flow according to the change of the pipeline pressure, the adjusting mechanism does not have the participation of an electric control, the investment cost is greatly saved, the quick response can be realized in a large adjusting range by responding to the change of the property of conveying bulk materials, the stable operation of a bulk material conveying system is ensured, the reliability is greatly improved, the conveying pressure of the pipeline is effectively controlled, the abrasion is reduced, the operation cost is reduced, and the system benefit is improved.
Drawings
FIG. 1 is a schematic front view of an automatically adjusting aeration valve of the present invention.
Fig. 2 is a schematic top view of the self-adjusting aeration valve.
Fig. 3 is a schematic cross-sectional view of an automatically adjusting aeration valve.
Fig. 4 is a schematic front view of the spindle.
FIG. 5 is a schematic cross-sectional view of a piston seal ring set.
Fig. 6 is a front view of the sleeve.
Fig. 7 is a schematic cross-sectional view of the sleeve.
Fig. 8 is a schematic view of an axial end strut.
Fig. 9 is a schematic view of a scale sleeve.
FIG. 10 is a schematic view of the arrangement of the air supply system for the variable diameter pipeline and the ascending pipeline.
FIG. 11 is a schematic view of the air make-up system for a horizontal bend descent duct.
In the figure, 1 valve body, 2 main shaft, 3 upper end cover, 4 lower pipe joint, 5 piston, 6 pressure automatic regulating device, 7 material conveying pipeline, 8 compressed gas pipeline, 11 valve cavity, 12 bush, 13 pressure balance hole, 14 valve cavity filter joint, 15 gas channel, 151 channel inlet short circuit, 152Y type filter, 153 channel outlet short circuit, 154 wafer type check valve, 21 flat key, 22 shaft upper through hole group, 23 shaft sleeve, 231 shaft through hole, 232 long slot hole, 24 bearing positioning regulating knob, 31 sealing ring, 32 regulating installation groove, 33 main shaft abdicating hole, 41 pressure inlet, 51 piston fixing component, 52 piston sealing ring group, 53 protection pad, 61 pressure regulating knob, 62 shaft end pressure rod, 621 external thread, 622 retaining ring, 623 rod body, 63 spring, 64 scale shaft sleeve, 33 main shaft abdicating hole, 41 light protection cover, 71 switch ball valve, 72 hose, 73 air supplement pipe.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific examples, but the embodiments of the invention are not limited thereto.
Fig. 1 to 9 show a preferred embodiment of the automatic adjustment gulp valve of the present invention, and as shown in fig. 1, 2 and 3, the automatic adjustment gulp valve includes a valve body 1 and a spindle 2, the valve body 1 is square, a vertical center is provided with a vertically penetrating shaft hole (not shown in the figure), and the spindle 2 is inserted in the shaft hole. An upper end cover 3 is arranged above the valve body 1, a lower pipe joint 4 is arranged below the valve body 1, the upper end cover 3 and the lower pipe joint 4 are connected with the valve body 1, four corners of the valve body are locked and fixed by bolts, and a sealing ring 31 is arranged on the connecting surface. The lower pipe joint 4 is in the shape of an annular boss, and the middle part is provided with a pressure inlet 41 connected with an external pipeline (not shown in the figure).
The middle part of the lower end face of the valve body 1 is provided with a valve cavity 11, a piston 5 is arranged in the valve cavity 11, the piston 5 is connected with the center of the bottom end of the main shaft 2 through a piston fixing component 51, and the lower circumferential face of the main shaft 2 is provided with a flat key 21 connected with the piston 5. The inner wall of the valve cavity 11 is provided with a bushing 12, the bushing 12 is a polymer sealing bushing, the bushing is limited and fixed in the valve cavity 11 by the lower pipe joint 4, and the piston 5 is slidably sleeved in the bushing 12. In order to ensure the sealing performance, a piston sealing ring set 52 is arranged between the piston 5 and the bushing 12, the shape of the piston sealing ring is shown in fig. 5, and the piston sealing ring set 52 of the embodiment comprises 3 piston sealing rings. When the pressure in the conveying pipeline rises due to the blockage or slow circulation of materials, the pressure action pushes the piston 5 to move upwards in the valve cavity 11. A pressure balance hole 13 is formed in the valve body 1 above the valve cavity 11 and communicated with the outside of the valve body 1, when the piston 5 moves upwards, air in the valve cavity 11 can be discharged through the pressure balance hole 13, and a valve cavity filtering joint 14 is arranged at the outlet end of the pressure balance hole 13. In order to avoid rigid impact on the valve body 1 when the piston 5 moves upwards, a protective pad 53 can be arranged on the upper end surface of the piston 5, and the protective pad 53 is made of soft material and is higher than the upper end surface of the piston 5 in plane, so that the upward movement of the piston 5 can be buffered.
Because the piston 5 is connected with the main shaft 2 through the piston fixing component 51 and the flat key 21, the main shaft 2 is driven to move upwards when the piston 5 moves upwards under the action of the pressure of the pipeline. The middle circumferential surface of the main shaft 2 is provided with an on-shaft through hole group 22 (as shown in fig. 4). Be equipped with axle sleeve 23 between main shaft 2 and the valve body 1, seted up the axle sleeve mounting groove (not shown in the figure) on the valve body 1, axle sleeve 23 fixed mounting is spacing by upper end cover 3 in the axle sleeve mounting groove, does not follow main shaft 2 up-and-down motion. The upper part of the valve body 1 is transversely provided with a gas channel 15, one end of the gas channel 15 is connected with a compressed gas conveying pipeline (see fig. 10 and 11), the other end of the gas channel 15 is connected with a material conveying pipeline, and the central axis is vertical to the central line of the main shaft 2. The shaft sleeve 23 is a polymer sealing shaft sleeve, the axial center is a shaft passing hole 231, the shaft passing hole is in clearance fit with the main shaft 2, the circumferential surface is provided with a long slotted hole 232, the long slotted hole 232 is communicated with the gas channel 15 (namely, the length of the long slotted hole 232 is the pipe diameter of the gas channel 15), and the center line of the long slotted hole 232 is vertically intersected with the center line of the shaft passing hole 231 (as shown in fig. 6 and 7). When the pipeline pressure is constant, the main shaft 2 and the shaft sleeve 23 close the gas channel 15, when the main shaft 2 moves upwards, the on-shaft through hole group 22 also moves upwards gradually to communicate with the long slot hole 232 on the shaft sleeve 23, so that the gas channel 15 is opened, and compressed gas can enter the material conveying pipeline through the gas channel 15 to supplement gas and dredge the material conveying pipeline.
The top of main shaft 2 is connected with a pressure automatic regulating apparatus 6, and pressure automatic regulating apparatus includes pressure adjustment knob 61, axle head depression bar 62, spring 63 and scale axle sleeve 64, and the middle part of upper end cover 3 upper end is equipped with regulation mounting groove 32, and regulation mounting groove 32 bottom is equipped with the main shaft hole of stepping down 33, and main shaft 2 is worn out in the main shaft hole of stepping down 33. The pressure adjusting knob 61 is installed in the adjusting installation groove 32, is in threaded connection with the adjusting installation groove 32, is provided with a through hole in the center, and is provided with a shaft end pressure rod 62 and a scale shaft sleeve 64. The lower end of the shaft end pressing rod 62 is connected with the upper end of the main shaft 2, as shown in fig. 8, the lower end of the shaft end pressing rod 62 is provided with an external thread 621 which is in threaded connection with the main shaft 2, a retainer ring 622 is arranged above the external thread, and a rod body 623 is arranged above the retainer ring 622. The scale shaft sleeve 64 is sleeved on the rod body 623, as shown in fig. 9, a bottom plate 641 is arranged at the lower end of the scale shaft sleeve 64, and the retainer ring 622 is used for limiting the bottom plate 641. The spring 63 is sleeved outside the scale shaft sleeve 64, and the pressure adjusting knob 61 and the bottom plate 641 form upper and lower limit for the spring 63. When the piston 5 is driven by the external pipeline pressure to move up the main shaft 2, the spring 63 is compressed until the on-shaft through hole group 22 moves to the position of the gas channel 15, the gas channel 15 is opened, the compressed gas supplies gas to the material conveying pipeline through the gas channel 15, after the material is conveyed smoothly, the pressure is reduced, the spring 63 is reset, the main shaft 2 is pushed to drive the piston 5 to gradually descend, and after the piston 5 reaches the bottom of the valve cavity 11, the gas channel 15 returns to a closed state.
The top end of the shaft end pressing rod 62 is connected with a light protective cover 65, and the light protective cover 65 covers the upper part of the upper end cover 3 inside to protect the automatic pressure adjusting device 6. The upper part of the main shaft 2 is also connected with a bearing positioning adjusting knob 24 for positioning the main shaft 2 and the upper end cover 3.
The invention realizes the balance of force through mechanical balance to realize the automatic adjustment of the valve, and the mechanical balance model of the automatic adjustment gulp valve is as follows:
F1+F2+F3＝M+G
wherein, F1: thrust of pressure (pressure) in the pipeline acting on the piston;
f2: the valve body supports the valve;
f3: friction force when the valve is actuated;
g: the weight of the moving member itself;
m: the spring force of the spring.
The motion mechanism is as follows: when the pressure in the pipeline rises, the piston 5 is pushed to move upwards under the action of the pressure, the air in the valve cavity 11 balances the air pressure through the valve cavity pressure balance hole 13, the piston 5 drives the main shaft 2 to move upwards, when the on-shaft through hole group 22 enters the air passage 15, the air passage 15 is opened to complete air supplement on the pipeline, the pipeline pressure is reduced after the pipeline air supplement, and meanwhile, the piston 5 drives the main shaft 2 to descend, so that the air supplement is reduced or even closed. The spring 63 on the upper part of the main shaft 2 not only provides an automatic closing force, but also adjusts the spring 63 by adjusting the pressure adjusting knob 61 to realize the adjustment of the opening pressure of the valve, and adjusts the pressure of the spring 63 according to the set scale sleeve 64, thereby adjusting the action resistance of the valve.
Fig. 10 and 11 are schematic views of the air supply structure of the automatic regulating air supply valve installed in the pipeline system. When bulk material is transported, the pipe is likely to be blocked at the pipe diameter change position or the bend, fig. 10 is a schematic diagram of the air make-up system of the reducing pipe and the horizontal ascending pipe, when material is fed from the small pipe to the large pipe, an automatic adjusting air make-up valve is respectively arranged at the front and back of the reducing point, when the horizontal pipe is changed into the ascending vertical pipe, the automatic adjusting air make-up valve is arranged at the cutting position of the ascending pipe at the bend angle. Fig. 11 is a schematic view of the air supply system for changing a horizontal pipeline into a descending vertical pipeline and then into a horizontal pipeline, wherein an automatic adjusting air supply valve is arranged at each of the descending pipe cut-in position and the horizontal pipe cut-in position at a corner, and an automatic adjusting air supply valve is arranged at the middle section of the descending pipeline.
The air inlet end of the air passage 15 of the automatic adjusting aeration valve is provided with a passage inlet short circuit 151, and the passage inlet short circuit 151 is butted with a Y-shaped filter 152 and connected with the compressed air pipeline 8; the gas outlet end of the gas channel 15 is provided with a channel outlet short circuit 153, and the channel outlet short circuit 153 is butted with a pair of clamp-type check valves 154 and connected with the material conveying pipeline 7. The material conveying pipeline 7 is provided with a switch ball valve 71 connected with a lower pipe connector 4 of the automatic adjustment air compensating valve, and a Y-shaped filter 152 at the air inlet end of an air channel 15 of the automatic adjustment air compensating valve is connected with the switch ball valve 71 through a hose 72 and then connected with a compressed air pipeline 8; the clamp-on check valve 154 at the outlet end of the gas channel 15 is connected with the switch ball valve 71 through a hose and then connected with the material conveying pipeline 7 through the air supplementing pipe 73.
On the horizontal pipeline or the vertical pipeline, an air replenishing angle a exists between the air replenishing pipe 73 and the material conveying pipeline 7, different air replenishing positions and different air replenishing angles a are adopted for different pipeline parts, and the air replenishing angle a is designed according to the characteristics of bulk materials so as to ensure the optimal air replenishing state, which is shown in fig. 10 and 11.
At the pipe corner, the air supply pipe 73 is tangent to the bent vertical or horizontal material conveying pipe 7, the cutting direction is the same as the material conveying direction, and meanwhile, the air supply pipe 73 is also provided with a wafer check valve.
The automatic adjustment air supply valves are additionally arranged on the material conveying pipeline 7 for bulk material conveying, when the pressure of the pipeline rises due to bulk material conveying blockage, compressed air is supplied to the material conveying pipeline 7 through the automatic adjustment air supply valves to assist in conveying the bulk materials, the blockage can be cleared, the pressure of the pipeline is reduced, the automatic adjustment air supply valves are completely controlled mechanically and automatically, an electric or pneumatic executing mechanism is not needed, the system is simple in structure, single-point independent control is achieved, and multi-path control errors are not prone to occurring.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a pipeline automatically regulated gulp valve which characterized in that: comprises that
The valve comprises a valve body, a valve cavity and a gas channel, wherein the center of the valve body is provided with a shaft hole which penetrates through the valve body up and down, the valve cavity is arranged at the lower part of the valve body, a pressure balance hole is arranged above the valve cavity and communicated with the outside, the upper part of the valve body is transversely provided with the gas channel, one end of the gas channel is connected with an external compressed gas conveying pipeline, and the other end of the gas channel is connected with an;
the main shaft penetrates through the shaft hole, an on-shaft through hole group is arranged on the circumferential surface of the middle part of the main shaft, a shaft sleeve is sleeved outside the main shaft and fixedly installed in the valve body, a long slotted hole is formed in the circumferential surface of the shaft sleeve and communicated with the gas channel, the gas channel is blocked and closed by the main shaft in an initial state, and the on-shaft through hole group is positioned below the gas channel;
the piston is arranged in the valve cavity and is fixedly connected with the lower end of the main shaft;
the automatic pressure adjusting device is arranged in the upper end cover and is connected with the upper end of the main shaft;
the lower pipe joint is provided with a pressure inlet, the pressure of an external pipeline is applied to the piston through the pressure inlet to push the piston to drive the main shaft to move upwards, the main shaft is moved upwards to the position where the on-shaft through hole group of the main shaft is communicated with the gas channel, the gas channel is opened, the gas is supplied to the external material conveying pipeline until the pressure is reduced, and the automatic pressure adjusting device pushes the main shaft and the piston to move downwards to reset.
2. The automatic pipeline adjusting gulp valve according to claim 1, characterized in that: the automatic pressure adjusting device comprises a pressure adjusting knob, a shaft end pressure lever, a spring and a scale shaft sleeve; the middle part of the upper end cover is provided with an adjusting mounting groove, the pressure adjusting knob is mounted in the adjusting mounting groove, the center of the upper end cover is provided with the shaft end pressure rod and the scale shaft sleeve, the shaft end pressure rod is connected with the main shaft and provided with a retaining ring, the scale shaft sleeve is sleeved on the shaft end pressure rod, a bottom plate is arranged above the retaining ring, and the spring is mounted between the pressure adjusting knob and the bottom plate.
3. The automatic pipeline adjusting gulp valve as claimed in claim 2, wherein: the top end of the shaft end pressure lever is provided with a light protective cover, and the light protective cover covers the upper part of the upper end cover inside.
4. The automatic pipeline adjusting gulp valve as claimed in claim 2, wherein: the upper part of the main shaft is connected with a bearing positioning adjusting knob.
5. The automatic pipeline adjusting gulp valve according to claim 1, characterized in that: the piston is provided with a piston sealing ring group which is in sliding connection with the bush.
6. The automatic pipeline adjusting gulp valve according to claim 1, characterized in that: the piston is connected with the bottom of the main shaft through the piston fixing assembly and is connected with the side face of the main shaft through a flat key.
7. The automatic pipeline adjusting gulp valve according to claim 1, characterized in that: and a protective pad is arranged on the upper end surface of the piston.
8. The automatic pipeline adjusting gulp valve according to claim 1, characterized in that: the valve body is square, the upper end cover and the lower pipe joint are connected with four corners of the valve body through bolts, and sealing rings are arranged between the upper end cover and the upper end face of the valve body and between the lower pipe joint and the lower end face of the valve body.
9. An air supply system using the automatic pipeline adjustment air supply valve of any one of claims 1-8, wherein: comprises a material conveying pipeline, a compressed gas pipeline and an automatic adjusting aeration valve; the material conveying pipeline is provided with a switch ball valve connected with a lower pipe interface of the automatic adjustment air compensating valve, and a gas inlet end of a gas channel of the automatic adjustment air compensating valve is connected with the switch ball valve through a hose and then connected with the compressed gas pipeline; the gas outlet end of the gas channel is connected with a switch ball valve through a hose and then is connected with the material conveying pipeline through a gas supplementing pipe;
when the material conveying pipeline is a horizontal pipeline or a vertical pipeline, an air supplementing angle exists between the air supplementing pipe and the material conveying pipeline;
when the material conveying pipeline is a bent pipe, the air supplementing pipe is tangent to the bent vertical or horizontal material conveying pipeline, the cutting direction is the same as the material conveying direction, and the air supplementing pipe is provided with a wafer type check valve.
10. The system of claim 9, wherein the system comprises: the air inlet end of the air channel of the automatic adjusting aeration valve is provided with a channel inlet short circuit, and the channel inlet short circuit is butted with a Y-shaped filter and is connected with the compressed air pipeline; the air outlet end of the air channel of the automatic adjusting aeration valve is provided with a channel outlet short circuit, and the channel outlet short circuit is butted with a pair of clamp type check valves and is connected with the material conveying pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110125728.7A CN112797206A (en) | 2021-01-29 | 2021-01-29 | Automatic pipeline adjusting and air supplementing valve and air supplementing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110125728.7A CN112797206A (en) | 2021-01-29 | 2021-01-29 | Automatic pipeline adjusting and air supplementing valve and air supplementing system |
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| Publication Number | Publication Date |
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| CN112797206A true CN112797206A (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110125728.7A Withdrawn CN112797206A (en) | 2021-01-29 | 2021-01-29 | Automatic pipeline adjusting and air supplementing valve and air supplementing system |
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| Country | Link |
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| CN (1) | CN112797206A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096959A (en) * | 2020-10-10 | 2020-12-18 | 温州职业技术学院 | High-efficient high-speed discharge valve of adjustable |
| CN114352795A (en) * | 2021-12-30 | 2022-04-15 | 广东汕控环保科技有限公司 | Bus-controlled pneumatic conveying gulp valve and control system |
| CN115231317A (en) * | 2022-08-29 | 2022-10-25 | 纽普兰能源科技(镇江)有限公司 | Positive-pressure air supplementing device for positive-negative integrated multifunctional pump and using method of positive-pressure air supplementing device |
| CN116066455A (en) * | 2022-12-08 | 2023-05-05 | 河南鼎盛铝业有限公司 | Pressure-sensing pulsation valve and pressure-sensing pulsation pneumatic conveying system |
-
2021
- 2021-01-29 CN CN202110125728.7A patent/CN112797206A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096959A (en) * | 2020-10-10 | 2020-12-18 | 温州职业技术学院 | High-efficient high-speed discharge valve of adjustable |
| CN114352795A (en) * | 2021-12-30 | 2022-04-15 | 广东汕控环保科技有限公司 | Bus-controlled pneumatic conveying gulp valve and control system |
| CN114352795B (en) * | 2021-12-30 | 2024-03-26 | 广东汕控环保科技有限公司 | Bus-controlled air compensating valve for pneumatic conveying and control system |
| CN115231317A (en) * | 2022-08-29 | 2022-10-25 | 纽普兰能源科技(镇江)有限公司 | Positive-pressure air supplementing device for positive-negative integrated multifunctional pump and using method of positive-pressure air supplementing device |
| CN115231317B (en) * | 2022-08-29 | 2023-11-14 | 纽普兰能源科技(镇江)有限公司 | Positive pressure air supplementing device for positive and negative integrated multifunctional pump and application method thereof |
| CN116066455A (en) * | 2022-12-08 | 2023-05-05 | 河南鼎盛铝业有限公司 | Pressure-sensing pulsation valve and pressure-sensing pulsation pneumatic conveying system |
| CN116066455B (en) * | 2022-12-08 | 2024-01-02 | 河南鼎盛铝业有限公司 | Pressure-sensing pulsation valve and pressure-sensing pulsation pneumatic conveying system |
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Application publication date: 20210514 |