CN113819390A - Discharge capacity automatic adjustment type anti-blocking drain valve - Google Patents
Discharge capacity automatic adjustment type anti-blocking drain valve Download PDFInfo
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- CN113819390A CN113819390A CN202111381619.8A CN202111381619A CN113819390A CN 113819390 A CN113819390 A CN 113819390A CN 202111381619 A CN202111381619 A CN 202111381619A CN 113819390 A CN113819390 A CN 113819390A
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- rod
- shell
- diaphragm
- lifting rod
- piston plate
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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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/20—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
- F16T1/22—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type
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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
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
Abstract
The invention relates to the technical field of drain valves, and particularly discloses an automatic discharge capacity adjusting type anti-blocking drain valve which comprises a shell, an inlet pipe, a vibration assembly, a lifting assembly, an outlet pipe and a liquid outlet, wherein the side wall of the lower part of the shell is provided with the inlet pipe, the part of the inlet pipe inserted into the shell is divided into two paths by a partition plate, one path is a first flow path, the other path is a second flow path, a diaphragm is arranged on the partition plate, the vibration assembly is arranged on one surface, far away from the diaphragm, of each of the first flow path and the second flow path, the lifting assembly comprises a lifting rod, the lifting rod is respectively connected with the diaphragm and the two vibration assemblies, the side surface of the lower part of the shell is provided with the liquid outlet, the top wall surface of the shell is provided with the outlet pipe, and the vibration assembly drives the lifting rod to vibrate in a reciprocating jumping mode along a direction perpendicular to the first flow path. The inflow steam is divided into two paths to enter the shell, one path of the inflow steam is subjected to speed reduction and pressure boosting condensation to release more heat, and the other path of the inflow steam is subjected to pressure reduction and heat absorption to be far away from a condensation point.
Description
Technical Field
The invention relates to the technical field of drain valves, in particular to an automatic displacement adjusting type anti-blocking drain valve.
Background
Trap is a common component in industrial applications and is used in large numbers in plants involving steam pipelines.
The drain valve is a valve for discharging condensed water in the steam conveying process to prevent steam from being discharged, is generally arranged on a pipeline between a boiler and a device using the steam, and intercepts and discharges condensed water body caused by heat dissipation in the conveying pipeline process to prevent the condensed water from entering a subsequent heat utilization position to cause adverse effects.
In the prior art, condensed water is generally simply discharged through a floating ball type or floating cylinder type drainage structure, the steam flow is not adjusted, steam which generates the condensed water is in a gaseous state, but is close to a condensation point, after passing through a drain valve, the steam is likely to go forward only a small section of pipeline for condensation, and a certain amount of condensed water still enters equipment using the steam to cause certain damage to the machine.
Disclosure of Invention
The present invention is directed to a displacement self-adjusting anti-clogging trap to solve the above-mentioned problems of the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
an anti-blocking drain valve with automatically adjusted discharge capacity comprises a shell, an inlet pipe, a vibration component, a lifting component, an outlet pipe and a liquid outlet, wherein the inlet pipe is arranged on the side wall of the lower part of the shell, the part of the inlet pipe inserted into the shell is divided into two paths by a partition plate, one path is a first flow path, the other path is a second flow path, a diaphragm is arranged on the partition plate, the vibration component is arranged on one surface, far away from the diaphragm, of the first flow path and the second flow path respectively, the lifting component comprises a lifting rod which is connected with the diaphragm and the two vibration components respectively, the liquid outlet is arranged on the side surface of the lower part of the shell, the outlet pipe is arranged on the wall surface of the top of the shell,
the oscillating component drives the lifting rod to vibrate in a reciprocating jumping mode along the direction perpendicular to the first flow channel.
When the lifting rod moves towards the first flow channel, the diaphragm protrudes towards the first flow channel, at the moment, the flow channel of the first flow channel is narrowed at the diaphragm, the flow channel of the second flow channel is expanded at the diaphragm, steam entering from the inlet pipe is divided into the first flow channel and the second flow channel, when the flow channel is expanded and flows, the flow speed is reduced, the pressure is increased, so that at the expansion position of the flow channel, the steam tends to be pressed out of liquid water, the steam condensation process releases latent heat to heat the surrounding space, the wall surface of the flow channel and the diaphragm, part of heat is transferred into the first flow channel, in the first flow channel, the flow channel is narrowed, the flow speed is accelerated, the pressure is reduced, the steam deviates from a condensation point, in addition, the pressure is reduced, the temperature is reduced, the heat is more easily absorbed from the second flow channel, namely, part of the steam in the second flow channel is designed to tend to be condensed, the heat released by condensation is absorbed by the surrounding steam to push the steam away from the condensation point, then the mixture is separated from the inlet pipe and completely enters the shell, the steam heats the liquid water and evaporates the liquid water for a required time, the output steam can be kept away from the condensation point as long as the steam is guided away and the liquid water is discharged in a short time, the condensation condition of the steam is reduced in the subsequent long-period conveying process,
if the first flow channel is always in the arrangement of narrowing the flow channel and the second flow channel is always in the arrangement of expanding the flow channel, because the temperature is continuously increased due to the influence of latent heat released by steam condensation in the second flow channel, the subsequent condensation process of steam entering the second flow channel can be influenced, because at a higher temperature, the steam can be changed into liquid water only by increasing the pressure, therefore, the vibration assembly is arranged in the two flow channels, the vibration assembly is used for driving the lifting rod to do reciprocating jumping motion, when the lifting rod moves towards the second flow channel, the diaphragm protrudes towards the second flow channel, at the moment, the second flow channel is changed into narrowing of the flow channel, the first flow channel is changed into expanding the flow channel, in the two paths of steam, the first flow channel is internally changed into a condensation heat release section, and the second flow channel is internally changed into a pressure reduction heat absorption section, and the cold-heat relationship between the first flow channel and the second flow channel is alternated, and the wall surface temperature of the flow channel is re-adjusted.
Further, the oscillation component comprises a mounting rack, a heat-sensitive spring and an elastic choke, the lifting component also comprises a pressure plate and a bouncing ball,
the mounting frame is arranged on the wall surface of one side of the first flow passage or the second flow passage respectively far away from the diaphragm, the mounting frame is provided with an elastic choke towards the diaphragm, one side of the mounting frame close to the diaphragm is provided with a heat-sensitive spring towards the direction far away from the diaphragm,
two pressure plates are arranged on the lifting rod, the pressure plates respectively abut against one ends of the two thermosensitive springs, which are far away from the diaphragm, two bouncing balls are arranged on the lifting rod, the bouncing balls are respectively positioned between the diaphragm and the pressure plates,
the diameter of the jumping ball is larger than the minimum distance of the elastic choke, and when the lifting rod moves towards the first flow passage, the jumping ball in the first flow passage is positioned on one side, far away from the diaphragm, of the elastic choke in the flow passage.
The heat-sensitive spring is a spring with elasticity increasing along with the rise of ambient temperature, when the diaphragm bulges towards the first flow passage, the steam in the first flow passage is in a pressure reduction and heat absorption process, and the steam is in a pressure rise, condensation and heat release process in the second flow passage, at the moment, the elasticity of the heat-sensitive spring in the first flow passage is smaller and smaller, and the elasticity of the heat-sensitive spring in the second flow passage is continuously increased, when the elasticity difference of the two springs is enough to provide the force for the jump ball in the second flow passage to push away the elastic choke, the elastic choke is put through the jump ball, at the moment, the lifting rod, the two pressing plates and the two jump balls on the lifting rod move towards the second flow passage, the diaphragm is dragged to bulge towards the second flow passage, the cold and hot states of the two flow passages are changed, the first flow passage enters the condensation and heat release process, the temperature of the heat-sensitive spring in the first flow passage is continuously raised, and the pressing plates are pushed to move after the elasticity is sufficiently accumulated, the spring choke can be a plastic clamp structure which is not sensitive to temperature and the elasticity of which does not change greatly with the temperature change.
Furthermore, the trap valve also comprises a piston plate, the piston plate is arranged at the upper part in the shell in a sliding manner, the piston plate is connected with the lifting rod, an air blocking structure is arranged between the upper surface and the lower surface of the piston plate, the air blocking structure is blocked when the piston plate moves towards the outlet pipe, and the air blocking structure is opened when the piston plate moves away from the outlet pipe.
The lifter obtains a continuous reciprocating motion in vibration subassembly department, drive the piston board and carry out elevating movement, the piston board is equivalent to compress the steam of being about to export between piston board and the exit tube and carries, will probably be close to near condensation point steam some liquid releases the temperature that latent heat promoted the steam of carrying away again, further prevent to take place to condense on the rear end delivery pipe, liquid water is when the exit tube motion is kept away from to the piston board, leak back piston board below space from the choke structure, outside the eduction gear of follow drain outlet.
Furthermore, the drain valve also comprises a lever transmission structure, a transmission rod is arranged on the end face of one side, away from the outlet pipe, of the piston plate, the transmission rod and the lifting rod transmit linear motion through the lever transmission structure, and the lever transmission structure amplifies the linear displacement of the end part of the lifting rod and then transmits the amplified linear displacement to the end part of the transmission rod. The lifting rod drives the piston plate to move, the motion amplitude of the piston plate determines the compression amount of steam at each time, the transmission ratio of the lever transmission structure is adjusted, the compression conveying amount of the steam at each time can be determined, and when the temperature of the steam at the inlet pipe is lower, the motion amplitude of the larger piston plate is used, and the conveying amount of the steam at each time is improved.
Furthermore, the lever transmission structure comprises a fulcrum block, a telescopic rod and a swing rod, wherein one end of the telescopic rod is hinged to the end part of the transmission rod, one end of the telescopic rod is hinged to the end part of the lifting rod, the fulcrum block is sleeved in the middle of the telescopic rod, one end of the swing rod is connected to the inner wall of the shell, and the other end of the swing rod is connected with the fulcrum block through a ball hinge.
The linear displacement of the lifting rod drives the end of the transmission rod to linearly displace through the telescopic rod, and the lifting rod is parallel to the transmission rod, so that the self length of the telescopic rod needs to be adjusted in a self-adaptive mode in the transmission process, and the fulcrum block provides a fulcrum position for the telescopic rod.
Furthermore, the lever transmission structure further comprises a temperature sensing spring, the temperature sensing spring is sleeved on the telescopic rod and is located between the fulcrum block and the end portion of the lifting rod, one end of the temperature sensing spring is fixed with the fulcrum block, the swinging rod is connected with the inner wall of the shell through a ball hinge, and the swinging rod is provided with a telescopic structure.
When the steam temperature in the shell is higher, the temperature sensing spring extends to push the fulcrum block to one side far away from the end part of the lifting rod, at this time, the swinging rod adaptively extends or shortens the length of the swinging rod to still provide support for the fulcrum block, after the position of the fulcrum block is determined, the length of the telescopic rods at two sides of the fulcrum block is a new transmission ratio, the transmission ratio is small, the displacement of the lifting rod can only drive the piston plate to do small movement amplitude, less compressed steam is output at the outlet pipe in a single period, when the steam temperature in the shell is lower, the temperature sensing spring is shortened, the fulcrum block is close to the end part of the lifting rod, so that a large transmission ratio is obtained, a large amount of compressed steam is output by movement in each period, so as to provide stable heat flow for a subsequent pipeline, it should be noted that when the steam temperature is higher, the oscillation period at the oscillation component is shortened to some extent, so, even at the higher steam temperature, the single displacement of the piston plate is decreased, but the compression frequency is slightly higher than that of the low-temperature steam, so that in order to ensure a stable heat flow, the oscillation assembly should obtain an oscillation period as stable as possible, and specifically, the elastic force inequality of the elastic choke at different temperatures can be used to obtain a stable oscillation period.
Furthermore, the gas blocking structure comprises a communication hole, a limiting cover and a gas blocking block, wherein the communication hole is connected with two end faces of the piston plate, the gas blocking block is positioned at one end, close to the discharge pipe, in the communication hole, the contact face of the gas blocking block and the communication hole is a conical face with the same inclination, and the limiting cover is arranged at the end part of the communication hole and used for limiting the gas blocking block to be separated from the communication hole. The air blocking block forms a one-way stopping structure in the communicating hole, when the piston plate moves upwards, the air blocking block is tightly attached to the communicating hole and blocks the communicating hole, and when the piston plate moves downwards, a small amount of clearance is reserved between the air blocking block and the communicating hole, so that steam below the piston plate floats upwards and liquid water separated by compression and accumulated above the piston plate flows downwards.
Furthermore, the upper surface of the piston plate is provided with a recess, and the upper end of the communication hole is connected with the bottom of the recess. The condensed water is convenient to gather and rapidly flow downwards from the communicating hole.
Furthermore, the drain valve also comprises a float switch which is arranged at the bottom in the shell and controls the opening and closing of the liquid outlet. When liquid water is accumulated at the bottom of the shell body by the float switch, the liquid water is discharged out of the device from the liquid outlet.
Compared with the prior art, the invention has the following beneficial effects: the invention enters the inflow steam into the shell by two paths, one path of the two paths of steam in the flow channel is subjected to speed reduction and pressure rise condensation to release more heat, the other path of steam is subjected to pressure reduction and heat absorption to be far away from a condensation point, the heat-release flow channel is internally provided with the heat-sensitive spring to accumulate elastic force, when the elastic force exceeds a threshold value, the elastic choke is pushed open by the jump ball, so that the lifting rod performs jump movement, the two flow channels alternately absorb heat and perform reciprocating movement by pushing the piston rod, the transmission ratio of the lifting rod relative to the piston plate is different at different temperatures in the shell, the steam quantity discharged from the outlet pipe in each period is self-adaptively adjusted, the steam discharge quantity at lower temperature is large, the steam discharge quantity at higher temperature is small, stable heat flow is obtained, and the steam discharged from the outlet pipe is the steam subjected to micro-compression again, the state of the steam deviates from the condensation point, preventing condensation in the back end of the pipeline.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of state one of view A of FIG. 1;
FIG. 3 is a schematic view of state two of view A of FIG. 1;
FIG. 4 is view B of FIG. 1;
FIG. 5 is view C-C of FIG. 4;
FIG. 6 is a schematic view of a structure on the piston plate of the present invention;
in the figure: 1-shell, 2-inlet pipe, 21-first flow channel, 22-second flow channel, 23-diaphragm, 3-oscillation component, 31-mounting rack, 32-thermosensitive spring, 33-elastic choke, 4-lifting component, 41-lifting rod, 42-pressing plate, 43-bouncing ball, 5-piston plate, 51-transmission rod, 52-communication hole, 53-limit cover, 54-air-blocking block, 61-fulcrum block, 62-telescopic rod, 63-thermosensitive spring, 64-rocking rod, 7-outlet pipe, 8-float switch and 9-liquid discharge port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution:
an automatic discharge capacity adjusting type anti-blocking drain valve comprises a shell 1, an inlet pipe 2, a vibration component 3, a lifting component 4, an outlet pipe 7 and a liquid outlet 9, wherein the inlet pipe 2 is arranged on the side wall of the lower part of the shell 1, the part of the inlet pipe 2 inserted into the shell 1 is divided into two paths by a partition plate, one path is a first flow passage 21, the other path is a second flow passage 22, a diaphragm 23 is arranged on the partition plate, the vibration component 3 is arranged on one surfaces, far away from the diaphragm 23, of the first flow passage 21 and the second flow passage 22 respectively, the lifting component 4 comprises a lifting rod 41, the lifting rod 41 is connected with the diaphragm 23 and the two vibration components 3 respectively, the liquid outlet 9 is arranged on the side surface of the lower part of the shell 1, the outlet pipe 7 is arranged on the top wall surface of the shell 1,
the oscillating assembly 3 drives the lifting rod 41 to oscillate back and forth along a direction perpendicular to the first flow channel 21.
As shown in fig. 1 and 2, when the lifting rod 41 moves towards the first flow passage 21, the diaphragm 23 protrudes towards the first flow passage 21, at this time, the flow passage of the first flow passage 21 is narrowed at the diaphragm 23, the flow passage of the second flow passage 22 is expanded at the diaphragm 23, the steam entering from the inlet pipe 2 is divided into the first flow passage 21 and the second flow passage 22, when the flow is expanded, the flow speed is reduced and the pressure is increased, so that the steam is more likely to be pressed out of liquid water at the flow passage expansion position, the steam condensation process releases latent heat to heat the surrounding space, the flow passage wall surface and the diaphragm 23, the heat is partially transferred into the first flow passage 21, while in the first flow passage 21, the flow passage is narrowed, the flow speed is increased, the pressure is reduced, the steam is more away from the condensation point, and the pressure is reduced, the temperature is reduced, the heat is more easily extracted from the second flow passage 22, namely, part of the steam in the second flow passage 22 is designed to be condensed, the heat released by condensation is absorbed by surrounding steam to push the steam away from the condensation point, then the mixture is separated from the inlet pipe 2 and completely enters the shell 1, the steam heats the liquid water and evaporates the liquid water for a long time, the output steam can be kept away from the condensation point as long as the steam is guided away and the liquid water is discharged in a short time, the condensation condition of the steam is reduced in the subsequent long-period conveying process,
if the first flow channel 21 is always in the arrangement of narrowing the flow channel and the second flow channel 22 is always in the arrangement of expanding the flow channel, because the temperature in the second flow channel 22 is continuously raised due to the influence of latent heat released by steam condensation, the condensation process of the steam entering the second flow channel 22 subsequently can be influenced, and because the steam can be changed into liquid water only by the higher pressure rise at the higher temperature, the application arranges the oscillating assembly 3 in the two flow channels, the oscillating assembly 3 is used for driving the lifting rod 41 to do reciprocating jumping motion, when the lifting rod 41 moves towards the second flow channel 22, the diaphragm 23 protrudes towards the second flow channel 22, at this time, the second flow channel 22 is narrowed, the first flow channel 21 is changed into the flow channel to expand, in the two paths of steam, the first flow channel 21 is internally provided with a condensation heat release section, and the second flow channel 22 is internally provided with a pressure reduction section, the cold and heat absorption relationship between the first flow channel 21 and the second flow channel 22 is alternated, and re-adjusting the wall temperature of the flow passage.
The oscillating assembly 3 comprises a mounting frame 31, a heat-sensitive spring 32 and an elastic choke 33, the lifting assembly 4 further comprises a pressure plate 42 and a bouncing ball 43,
a mounting bracket 31 is mounted on the wall surface of the first flow passage 21 or the second flow passage 22 on the side far from the diaphragm 23, respectively, the mounting bracket 31 is provided with an elastic choke 33 towards the diaphragm 23, the side of the mounting bracket 31 close to the diaphragm 23 is provided with a heat-sensitive spring 32 towards the direction far from the diaphragm 23,
two pressing plates 42 are arranged on the lifting rod 41, the pressing plates 42 respectively support against one ends of the two thermosensitive springs 32 far away from the diaphragm 23, two bouncing balls 43 are arranged on the lifting rod 41, the bouncing balls 43 are respectively positioned between the diaphragm 23 and the pressing plates 42,
the diameter of the jump ball 43 is greater than the minimum distance of the elastic choke 33, and when the lifting rod 41 moves toward the first flow channel 21, the jump ball 43 in the first flow channel 21 is located on the side of the elastic choke 33 away from the diaphragm 23 in the flow channel.
The thermal spring 32 is a spring whose elastic force increases with the increase of the ambient temperature, as shown in fig. 2 and 3, when the diaphragm 23 protrudes toward the first flow passage 21, the steam in the first flow passage 21 performs a pressure-reducing and heat-absorbing process, and the steam in the second flow passage 22 performs a pressure-increasing, condensing and heat-releasing process, at this time, the elasticity of the thermal spring 32 in the first flow passage 21 is smaller and smaller, and the elasticity of the thermal spring 32 in the second flow passage 2 is increased and is increased, when the elastic force difference between the two springs is enough to provide a force for the bouncing ball 43 in the second flow passage 22 to push the elastic choke 33 away, the elastic choke 33 passes over the bouncing ball 43, at this time, the lifting rod 41, together with the two pressing plates 42 and the two bouncing balls 43 thereon, moves toward the second flow passage 22, the diaphragm 23 is pulled to protrude toward the second flow passage 22, the cold and hot states of the two flow passages are changed, the first flow passage 21 enters the heat-releasing and condensing process, and the temperature of the thermal spring 32 is increased continuously, after the spring force is accumulated enough, the pressing plate 42 is pushed to move, so that the jump ball 43 has enough force to push the elastic choke 33, after the jump ball 43 pushes the elastic choke 33, the lifting rod 41 can move rapidly at the other limit position, namely, the lifting component 4 periodically oscillates between the two limit positions, and the movement from one position to the other position is completed in a short time, so-called 'jump' movement, wherein the elastic choke 33 can be a plastic clamp structure which is insensitive to temperature and the elasticity of the elastic choke 33 does not change greatly along with the temperature change.
The trap further comprises a piston plate 5, the piston plate 5 being slidably mounted in the housing 1 at an upper portion thereof, the piston plate 5 being connected to a lifter 41, and a gas barrier structure being provided between upper and lower surfaces of the piston plate 5, the gas barrier structure being closed when the piston plate 5 is moved towards the outlet pipe 7 and being opened when the piston plate 5 is moved away from the outlet pipe 7.
The lifting rod 41 obtains a continuous reciprocating motion at the oscillating assembly 3 to drive the piston plate 5 to perform lifting motion, the piston plate 5 is equivalent to compressing and conveying steam to be output between the piston plate 5 and the outlet pipe 7, a part of liquid phase of the steam possibly close to the vicinity of a condensation point releases latent heat to raise the temperature of the conveyed steam, condensation on a rear end conveying pipeline is further prevented, and when the piston plate 5 moves away from the outlet pipe 7, liquid water leaks back to the space below the piston plate 5 from the air blocking structure and is discharged out of the device from the liquid discharge port 9.
The trap further comprises a lever transmission structure, a transmission rod 51 is arranged on the end face of one side, away from the outlet pipe 7, of the piston plate 5, the transmission rod 51 and the lifting rod 41 transmit linear motion through the lever transmission structure, and the lever transmission structure amplifies the linear displacement of the end part of the lifting rod 41 and then transmits the amplified linear displacement to the end part of the transmission rod 51. As shown in fig. 4, the lifting rod 41 drives the piston plate 5 to move, the motion amplitude of the piston plate 5 determines the compression amount of the steam at each time, the transmission ratio of the lever transmission structure is adjusted to determine the compression conveying amount of the steam at each time, and when the temperature of the steam at the inlet pipe 2 is lower, the motion amplitude of the piston plate 5 is larger, so that the conveying amount of the steam at each time is increased.
The lever transmission structure comprises a fulcrum block 61, an expansion link 62 and a swing rod 64, wherein one end of the expansion link 62 is hinged with the end of the transmission rod 51, one end of the expansion link is hinged with the end of the lifting rod 41, the fulcrum block 61 is sleeved in the middle of the expansion link 62, one end of the swing rod 64 is connected to the inner wall of the shell 1, and the other end of the swing rod 64 is in ball hinge connection with the fulcrum block 61.
As shown in fig. 4, the linear displacement of the lifting rod 41 pulls the end of the transmission rod 51 to linearly displace through the telescopic rod 62, and the lifting rod 41 is parallel to the transmission rod 51, so that during the transmission process, the telescopic rod 62 needs to adaptively adjust the length thereof, and the fulcrum block 61 provides a fulcrum position for the telescopic rod 62.
The lever transmission structure further comprises a temperature sensing spring 63, the temperature sensing spring 63 is sleeved on the telescopic rod 62, the temperature sensing spring 63 is located between the fulcrum block 61 and the end portion of the lifting rod 41, one end of the temperature sensing spring 63 is fixed with the fulcrum block 61, the swinging rod 64 is connected with the inner wall of the shell 1 through a ball hinge, and the swinging rod 64 is provided with a telescopic structure.
As shown in fig. 4 and 5, when the temperature of the steam in the housing 1 is high, the temperature sensing spring 63 extends to push the fulcrum block 61 to a side away from the end of the lifting rod 41, at this time, the swinging rod 64 adaptively extends or shortens its length to still provide support for the fulcrum block 61, after the position of the fulcrum block 61 is determined, the length of the telescopic rod 62 at both sides of the fulcrum block 61 is a new transmission ratio, in fig. 5, the temperature sensing spring 63 at the right side is shorter, the transmission ratio is smaller, the displacement of the lifting rod 41 can only drive the piston plate 5 to make a smaller movement amplitude, less compressed steam is output at the outlet pipe 7 in a single cycle, when the temperature of the steam in the housing 1 is low, the temperature sensing spring 63 is shortened, the fulcrum block 61 is close to the end of the lifting rod 41, thereby obtaining a larger transmission ratio, a larger amount of compressed steam is output per cycle of movement, so as to provide a more stable heat flow for the subsequent pipeline, it should be noted that when the steam temperature is higher, the oscillation period at the oscillation assembly 3 is somewhat shortened, so although the single displacement of the piston plate 5 is decreased at the higher steam temperature, the compression frequency is slightly higher than that of the low-temperature steam, so that in order to ensure a relatively stable heat flow, the oscillation period at the oscillation assembly 3 should be as stable as possible, and specifically, the elastic force inequality of the elastic choke 33 at different temperatures can be used to obtain a relatively stable oscillation period.
The gas blocking structure comprises a communication hole 52, a limiting cover 53 and a gas blocking block 54, wherein the communication hole 52 is connected with two end surfaces of the piston plate 5, the gas blocking block 54 is positioned at one end, close to the discharge pipe 7, in the communication hole 52, the contact surface of the gas blocking block 54 and the communication hole 52 is a conical surface with the same inclination, and the limiting cover 53 is arranged at the end part of the communication hole 52 and limits the gas blocking block 54 to be separated from the communication hole 52. As shown in fig. 6, the gas blocking piece 54 forms a one-way blocking structure in the communication hole 52, when the piston plate 5 moves upward, the gas blocking piece 54 is tightly attached to the communication hole 52, the communication hole 52 is blocked, when the piston plate 5 moves downward, a small gap remains between the gas blocking piece 54 and the communication hole 52, and the vapor floating below the piston plate 5 and the liquid water deposited and precipitated by compression above the piston plate 5 are allowed to flow downward.
The piston plate 5 has a recess formed on the upper surface thereof, and the upper end of the communication hole 52 is connected to the bottom of the recess. The condensed water is convenient to gather and rapidly flow downwards from the communication hole 52.
The trap also comprises a float switch 8, the float switch 8 is arranged at the bottom in the shell 1 and controls the opening and closing of the liquid outlet 9. As shown in fig. 1, when liquid water is accumulated at the bottom of the housing 1, the float switch 8 discharges the liquid water from the drain port 9 to the outside of the device.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An anti-blocking drain valve with automatically adjustable discharge capacity is characterized in that: the trap comprises a shell (1), an inlet pipe (2), a vibration assembly (3), a lifting assembly (4), an outlet pipe (7) and a liquid outlet (9), wherein the inlet pipe (2) is arranged on the side wall of the lower part of the shell (1), the part of the inlet pipe (2) inserted into the shell (1) is divided into two paths by a partition plate, one path is a first flow passage (21), the other path is a second flow passage (22), a diaphragm (23) is arranged on the partition plate, the vibration assembly (3) is arranged on one surface of each of the first flow passage (21) and the second flow passage (22) far away from the diaphragm (23), the lifting assembly (4) comprises a lifting rod (41), the lifting rod (41) is respectively connected with the diaphragm (23) and the two vibration assemblies (3), the liquid outlet (9) is arranged on the side surface of the lower part of the shell (1), the outlet pipe (7) is arranged on the top wall surface of the shell (1),
the oscillating assembly (3) drives the lifting rod (41) to vibrate in a reciprocating jumping mode along the direction perpendicular to the first flow channel (21).
2. A displacement self-adjusting anti-clogging trap as claimed in claim 1, wherein: the oscillation component (3) comprises a mounting rack (31), a heat-sensitive spring (32) and an elastic choke (33), the lifting component (4) further comprises a pressure plate (42) and a bouncing ball (43),
the mounting frame (31) is mounted on the wall surface of one side of the first flow channel (21) or the second flow channel (22) far away from the diaphragm (23), an elastic choke (33) is arranged towards the diaphragm (23) of the mounting frame (31), a heat-sensitive spring (32) is arranged towards the direction far away from the diaphragm (23) on one side of the mounting frame (31) close to the diaphragm (23),
two pressing plates (42) are arranged on the lifting rod (41), the pressing plates (42) respectively abut against one ends of the two thermosensitive springs (32) far away from the diaphragm (23), two bouncing balls (43) are arranged on the lifting rod (41), the bouncing balls (43) are respectively positioned between the diaphragm (23) and the pressing plates (42),
the diameter of the jump ball (43) is larger than the minimum distance of the elastic choke (33), and when the lifting rod (41) moves towards the first flow passage (21), the jump ball (43) in the first flow passage (21) is positioned on the side, away from the diaphragm (23), of the elastic choke (33) in the flow passage.
3. A displacement self-adjusting anti-clogging trap as claimed in claim 2, wherein: the steam trap further comprises a piston plate (5), the piston plate (5) is installed in the shell (1) in a sliding mode on the upper portion, the piston plate (5) is connected with the lifting rod (41), a gas blocking structure is arranged between the upper surface and the lower surface of the piston plate (5), when the piston plate (5) moves towards the outlet pipe (7), the gas blocking structure blocks, and when the piston plate (5) moves away from the outlet pipe (7), the gas blocking structure is opened.
4. A displacement self-adjusting anti-clogging trap as claimed in claim 3, wherein: the drain valve further comprises a lever transmission structure, a transmission rod (51) is arranged on the end face, on one side, of the piston plate (5), which deviates from the outlet pipe (7), the transmission rod (51) and the lifting rod (41) are in linear motion through the lever transmission structure, and the lever transmission structure amplifies the linear displacement of the end part of the lifting rod (41) and then transmits the amplified linear displacement to the end part of the transmission rod (51).
5. A displacement self-adjusting anti-clogging trap as claimed in claim 4, wherein: the lever transmission structure comprises a fulcrum block (61), an expansion rod (62) and a swing rod (64), wherein one end of the expansion rod (62) is hinged to the end of the transmission rod (51), one end of the expansion rod is hinged to the end of the lifting rod (41), the fulcrum block (61) is sleeved in the middle of the expansion rod (62), one end of the swing rod (64) is connected to the inner wall of the shell (1), and the other end of the swing rod (64) is connected with the fulcrum block (61) through a ball hinge.
6. A displacement self-adjusting anti-clogging trap as claimed in claim 5, wherein: the lever transmission structure further comprises a temperature sensing spring (63), the temperature sensing spring (63) is sleeved on the telescopic rod (62), the temperature sensing spring (63) is located between the end portions of the fulcrum block (61) and the lifting rod (41), one end of the temperature sensing spring (63) is fixed with the fulcrum block (61), the swinging rod (64) is connected with the inner wall of the shell (1) through a ball hinge, and the swinging rod (64) is provided with a telescopic structure.
7. A displacement self-adjusting anti-clogging trap as claimed in claim 6, wherein: the gas blocking structure comprises a communication hole (52), a limiting cover (53) and a gas blocking block (54), wherein the communication hole (52) is connected with two end faces of the piston plate (5), the gas blocking block (54) is positioned at one end, close to the outlet pipe (7), in the communication hole (52), the contact face of the gas blocking block (54) and the communication hole (52) is a conical face with the same inclination, and the limiting cover (53) is arranged at the end part of the communication hole (52) and limits the gas blocking block (54) to be separated from the communication hole (52).
8. A displacement self-adjusting anti-clogging trap as claimed in claim 7, wherein: the upper surface of the piston plate (5) is provided with a recess, and the upper end of the communication hole (52) is connected with the bottom of the recess.
9. A displacement self-adjusting anti-clogging trap as claimed in claim 1, wherein: the drain valve also comprises a floating ball switch (8), wherein the floating ball switch (8) is arranged at the bottom in the shell (1) and controls the opening and closing of the liquid outlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381619.8A CN113819390B (en) | 2021-11-22 | 2021-11-22 | Discharge capacity automatic adjustment type anti-blocking drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381619.8A CN113819390B (en) | 2021-11-22 | 2021-11-22 | Discharge capacity automatic adjustment type anti-blocking drain valve |
Publications (2)
| Publication Number | Publication Date |
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| CN113819390A true CN113819390A (en) | 2021-12-21 |
| CN113819390B CN113819390B (en) | 2022-02-11 |
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| CN202111381619.8A Active CN113819390B (en) | 2021-11-22 | 2021-11-22 | Discharge capacity automatic adjustment type anti-blocking drain valve |
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| CN114321695A (en) * | 2022-03-10 | 2022-04-12 | 艾肯（江苏）工业技术有限公司 | Bimetallic strip steam trap that constant temperature constant current was prevented leaking |
| CN114382930A (en) * | 2022-03-26 | 2022-04-22 | 艾肯（江苏）工业技术有限公司 | High-temperature-resistant steam distribution valve set capable of preventing expansion of sealing element |
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| Publication number | Publication date |
|---|---|
| CN113819390B (en) | 2022-02-11 |
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