CN112228763A

CN112228763A - Auxiliary drainage mechanism of floating ball type drain valve

Info

Publication number: CN112228763A
Application number: CN202011094366.1A
Authority: CN
Inventors: 彭顺忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-01-15

Abstract

The invention relates to the technical field of pipeline valves and discloses an auxiliary drainage mechanism of a floating ball type drain valve. The piston type opening and closing device is arranged, so that when the floating ball type steam trap is used for normally draining water, after liquid in the valve cavity gradually rises, the floating block is subjected to upward buoyancy increase, the floating block vertically moves upwards, the closed water pipe is opened, the liquid in the valve cavity can be quickly drained from the position, and the water pipe and the floating block are in an isosceles truncated cone shape in contact surface, so that a siphon effect can be formed at the position of the water pipe when the liquid in the valve cavity is gradually reduced, the liquid in the valve cavity can be quickly sucked out of the water pipe, the drainage efficiency of the floating ball type steam trap is improved, the phenomenon that the water hits the floating ball is prevented, and the service life of the water pipe and the floating ball is prolonged.

Description

Auxiliary drainage mechanism of floating ball type drain valve

Technical Field

The invention relates to the technical field of pipeline valves, in particular to an auxiliary drainage mechanism of a floating ball type drain valve.

Background

The steam trap is called as a steam trap, also called as an automatic drainer or a condensed water drainer, and is divided into a steam system and a gas system for use, the steam trap is arranged at a pipeline terminal heated by steam, the condensed water in the pipeline heated by the steam is continuously discharged outside the pipeline in the action, most of the steam traps can automatically identify steam and water, so that the purpose of automatically blocking steam and draining water is achieved, and the steam trap is widely applied to industries such as petrochemical industry, food pharmacy and power plants, and plays a great role in the aspects of energy conservation and emission reduction.

The traditional mechanical drain valve is divided into a floating ball type drain valve, a free semi-floating ball type drain valve, a lever floating ball type drain valve, an inverted bucket type drain valve and the like, wherein the floating ball type drain valve serves as a floater and a starting and stopping part when working normally, a valve is opened under the action of liquid buoyancy, internal liquid is discharged, and steam is blocked and drained when steam flows, but the floating ball type drain valve is small in internal liquid pressure and causes that the normal drainage or the drainage is slow due to small liquid amount, so that the internal liquid is always deposited, the inner cavity of the valve body is rusted, and when the floating ball type drain valve normally conducts the steam blocking and drainage, the floating ball floats up and down due to steam and water attack on the floating ball, so that the floating ball and a valve port are rubbed, the valve port is damaged in sealing and the floating ball leaks water, and.

Disclosure of Invention

Aiming at the defects of the prior floating ball type drain valve in the use process, the invention provides an auxiliary drainage mechanism of the floating ball type drain valve, which has the advantages of protecting a valve body and draining water at low pressure and solves the technical problems in the prior art.

The invention provides the following technical scheme: the utility model provides an auxiliary drainage mechanism of ball float trap, includes the valve body, the one end fixedly connected with water inlet of valve body, the other end fixedly connected with delivery port of valve body, the inner chamber middle part of valve body is provided with the valve pocket, the last fixed surface of valve pocket is connected with exhaust apparatus, the blast pipe has been seted up to the inner wall of valve body, the middle part fixed mounting of valve pocket has the filter plate, the middle part fixedly connected with pivot of valve pocket, the middle part swing joint of valve pocket inner chamber has the floater that is located the pivot middle part, the inner chamber activity of floater has cup jointed floats the piece, the valve pocket passes through the upper end intercommunication of water service pipe and delivery port, and the lower extreme that floats the piece is the isosceles round platform.

Preferably, the inlet hole has been seted up to the upper surface of floater, the counter weight liquid has been placed to the inner chamber of floating block, the movable block has been cup jointed in the side activity of floater, the upper surface of floating block is the inclined plane towards the movable block slope, main water pipe has been seted up at the middle part of movable block, the auxiliary water pipe with movable block surface and main water pipe intercommunication has been seted up to the inner chamber of movable block, the movable block has been close to one side of floater inner chamber and has been seted up the square groove, and the square groove is sealed by the inner wall dislocation of floater.

Preferably, one side of the movable block close to the inner cavity of the floating ball is movably connected with a rotating plate, one side of the rotating plate is provided with a round hole for communicating the inner cavity of the floating ball with the main water pipe, and the inner cavity of the movable block is fixedly provided with a reed for connecting the movable block with the rotating plate.

The invention has the following beneficial effects:

1. the piston type opening and closing device is arranged, so that when the floating ball type steam trap is used for normally draining water, after liquid in the valve cavity gradually rises, the floating block is subjected to upward buoyancy increase, the floating block vertically moves upwards, the closed water pipe is opened, the liquid in the valve cavity can be quickly drained from the position, and the water pipe and the floating block are in an isosceles truncated cone shape in contact surface, so that a siphon effect can be formed at the position of the water pipe when the liquid in the valve cavity is gradually reduced, the liquid in the valve cavity can be quickly sucked out of the water pipe, the drainage efficiency of the floating ball type steam trap is improved, the phenomenon that the water hits the floating ball is prevented, and the service life of the water pipe and the floating ball is prolonged.

2. The low-pressure drainage mechanism is arranged, so that when the pipeline drains low water volume, liquid in the floating ball can slowly flow into the inner cavity of the floating ball from the water inlet, under the action of the inclined surface on the upper surface of the floating ball, the liquid in the floating ball is concentrated to one side, the floating ball gradually rotates around the rotating shaft, after the movable block rotates to the water through pipe, the inner cavity of the floating ball is communicated with the water through pipe by the square groove of the movable block after the water through pipe jacks up the movable block, so that the liquid in the floating ball can drain outwards from the main water pipe by the square groove, and when the main water pipe drains outwards, the liquid in the valve cavity flows into the main water pipe by the auxiliary water pipe due to the large flow velocity of the liquid in the main water pipe, so that the liquid in the valve cavity can be discharged outwards while the liquid in the floating ball is discharged in an auxiliary mode, and the drainage efficiency when the pressure of the liquid in the pipeline is small is.

3. When the floating ball type steam trap is used for normal drainage, after the liquid in the valve cavity rises, the floating block moves upwards, and pressure is applied to the rotating plate at one end of the movable block through the side surface of the floating block, so that the rotating plate compression reed rotates, and the round hole in the middle of the rotating plate communicates the inner cavity of the floating ball with the main water pipe, so that when the water pipe is used for normal drainage, the liquid flowing into the valve cavity from the water inlet can flow into the inner cavity of the floating ball through the water inlet, and then can be discharged outwards through the main water pipe and the auxiliary water pipe in the inner cavity of the movable block, the obstruction of accumulated liquid in the inner cavity of the floating ball on the floating block is reduced, the floating height of the floating block is ensured, and the drainage efficiency of the valve cavity when more liquid is in the valve cavity is further ensured.

Drawings

FIG. 1 is a schematic view of a structural shaft of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic view of the inventive arrangement for low pressure drainage;

FIG. 4 is an enlarged view of the point A in FIG. 3;

fig. 5 is a schematic view of the structural movable block of the present invention.

In the figure: 1. a valve body; 2. a water inlet; 3. a water outlet; 4. a valve cavity; 5. an exhaust device; 6. an exhaust pipe; 7. filtering the plate; 8. a rotating shaft; 9. a floating ball; 10. a water pipe; 11. a water inlet hole; 12. floating blocks; 13. a weight matching liquid; 14. a movable block; 15. a main water pipe; 16. an auxiliary water pipe; 17. rotating the plate; 18. a reed.

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. 1-5, an auxiliary drainage mechanism of a floating ball type trap comprises a valve body 1, one end of the valve body 1 is fixedly connected with a water inlet 2, the other end of the valve body 1 is fixedly connected with a water outlet 3, a valve cavity 4 is arranged in the middle of an inner cavity of the valve body 1, an exhaust device 5 is fixedly connected to the upper surface of the valve cavity 4, an exhaust pipe 6 is arranged on the inner wall of the valve body 1, a filter plate 7 is fixedly arranged in the middle of the valve cavity 4, a rotating shaft 8 is fixedly connected to the middle of the valve cavity 4, a floating ball 9 positioned in the middle of the rotating shaft 8 is movably connected to the middle of the inner cavity of the valve cavity 4, a floating block 12 is movably sleeved in the inner cavity of the floating ball 9, the valve cavity 4 is communicated with the upper end of the water outlet 3 through a water pipe 10, and the contact position of the lower end of the floating block, the traditional freely movable floating ball 9 is changed into a rotary floating ball 9, the water pipe 10 is automatically opened and closed by the up-and-down movement of the floating block 12, the problem that the floating ball 9 frequently fluctuates after water strikes the floating ball 9 and the pipe orifice of the water pipe 10 is repeatedly rubbed to cause damage is solved, the contact end of the floating block 12 and the water pipe 10 is arranged in an isosceles truncated cone shape, so that a siphon effect can be formed when less liquid exists in the valve cavity 4, the liquid to be discharged in the valve cavity 4 is sucked into the water pipe 10 to assist in drainage, and the drainage efficiency of the drain valve is further improved.

Wherein, the upper surface of the floating ball 9 is provided with a water inlet hole 11, the inner cavity of the floating block 12 is provided with counterweight liquid 13, the side surface of the floating ball 9 is movably sleeved with a movable block 14, the upper surface of the floating block 12 is an inclined plane inclined towards the movable block 14, the middle part of the movable block 14 is provided with a main water pipe 15, the inner cavity of the movable block 14 is provided with an auxiliary water pipe 16 which communicates the outer surface of the movable block 14 with the main water pipe 15, one side of the movable block 14 close to the inner cavity of the floating ball 9 is provided with a square groove which is sealed by the inner wall of the floating ball 9 in a staggered way, when liquid in the valve cavity 4 is slowly increased by steam cooling or little water drainage in the valve cavity 4, the liquid flows to the inner cavity of the floating ball 9 through the water inlet hole 11, under the action of the inclined plane on the upper surface of the floating block 12, the liquid in the floating ball 9 is gathered to one side close to the movable block 14, the bottom surface of the movable block 14 coincides with the water through pipe 10, so that the movable block 14 moves upwards, the movable block 14 is opened by a square groove which is sealed in a staggered mode, the main water pipe 15 is communicated with the inner cavity of the floating ball 9 through the square groove, liquid in the inner cavity of the floating ball 9 can be discharged outwards through the main water pipe 15, and in the process of discharging liquid in the inner cavity of the floating ball 9, the flow velocity of the liquid in the main water pipe 15 is large, so that the pressure intensity is small, the liquid at the bottom surface of the valve cavity 4 flows into the main water pipe 15 through the auxiliary water pipe 16, the liquid at the bottom surface of the valve cavity 4 can be discharged in an auxiliary mode when the inner cavity of the floating ball 9 is drained, and the drainage efficiency of the drain valve when the liquid pressure in.

In order to ensure that liquid in the inner cavity of the floating ball 9 is discharged outwards, the floating ball 9 cannot rotate around the rotating shaft 8, the inner cavity of the floating block 12 is filled with proper counterweight liquid 13, the position of the counterweight liquid 13 changes along with the rotation of the floating ball 9 along with the increase of the liquid in the inner cavity of the floating ball 9, the stability of the floating ball 9 is ensured, and the position of the floating ball 9 cannot rotate when the liquid in the inner cavity of the floating ball 9 is discharged to the water service pipe 10.

Wherein, one side of the movable block 14 close to the inner cavity of the floating ball 9 is movably connected with a rotating plate 17, one side of the rotating plate 17 is provided with a round hole for communicating the inner cavity of the floating ball 9 with a main water pipe 15, a reed 18 for connecting the movable block 14 with the rotating plate 17 is fixedly arranged in the inner cavity of the movable block 14, so that the floating block 12 moves upwards when large water volume drainage is carried out in the pipeline, and applies pressure to the rotating plate 17 through the side of the floating block 12 so that the rotating plate 17 compresses the reed 18 to rotate, thereby opening the round hole which is sealed by dislocation, leading the inner cavity of the floating ball 9 to be communicated with the main water pipe 15 through the round hole, thereby make the liquid that flows into the floater 9 inner chamber from the inlet 11 can be through main water pipe 15 outside discharge under the effect of the upper surface of floater 12 slope, avoided the influence that floater 9 inner chamber liquid caused the floater 12 come-up, ensured the come-up height of floater 12, further ensured trap's drainage efficiency.

The using method of the invention is as follows: the drain valve is arranged at a proper position, when steam is discharged from a pipeline, the floating block 12 blocks the opening of the water pipe 10 under the action of gravity, so that the steam cannot be discharged outwards through the water pipe 10, the liquid in the valve cavity 4 expands under the action of high temperature of the steam, the inner part of the valve cavity 4 deforms to block the exhaust pipe 6, so that the steam cannot be discharged outwards, and when the steam is cooled, the liquid in the valve cavity 4 recovers, so that the exhaust pipe 6 is released, and the cooled gas can be discharged outwards;

when a large amount of water is drained: the pipeline carries out normal drainage, a large amount of liquid flows into the valve cavity 4 from the water inlet 2, under the action of the sharp rising of the liquid level in the valve cavity 4, the buoyancy force borne by the floating block 12 is increased, the floating block 12 moves upwards, so that the opening of the water pipe 10 is opened, the upward movement distance of the floating block 12 is larger due to more liquid in the valve cavity 4, the liquid in the valve cavity 4 is quickly discharged outwards through the water pipe 10, when the liquid amount in the pipeline is gradually reduced, the floating block 12 gradually moves downwards, a siphon effect can be formed at the opening of the water pipe 10 through the circular truncated cone shape of the lower surface of the floating block 12 and the upper surface of the water pipe 10, the discharge efficiency of the liquid in the valve cavity 4 is further improved, in addition, the side surface of the floating block 12 applies pressure to the rotary plate 17, so that the rotary plate 17 compresses the reed 18, so that the circular hole formed by the rotary plate 17 communicates the inner cavity of the floating block 9 with, after liquid in the pipeline flows into the inner cavity of the floating ball 9 through the water inlet hole 11, the liquid can be concentrated to one side of the movable block 14 through the inclined floating block 12 and is discharged outwards.

When a small amount of water is drained: because steam is discharged into the valve cavity 4 in the pipeline, the steam can not be discharged outwards under the action of the exhaust device 5, liquid is formed to flow into the valve cavity 4 after the steam is cooled, the liquid in the valve cavity 4 is slowly increased when a small amount of water is discharged from the pipeline, the liquid in the floating ball 9 is gradually increased under the action of the water inlet hole 11, the liquid is gathered to one side of the movable block 14 under the action of the inclined surface on the upper surface of the floating block 12, so that the floating ball 9 slowly rotates around the rotating shaft 8, after the liquid in the floating ball 9 reaches a certain amount, one side of the movable block 14 is contacted with the water through pipe 10 under the action of the weight distribution liquid 13 in the inner cavity of the floating block 12, so that the movable block 14 moves upwards, the square groove of the movable block 14 is opened, the inner cavity of the floating ball 9 is communicated with the water through pipe 10, and the liquid in the water through pipe 10 is discharged to the water through the main water pipe 15, under the action of the relatively high flow rate of the liquid in the main water pipe 15, the liquid in the valve cavity 4 flows into the main water pipe 15 through the auxiliary water pipe 16 and is discharged outwards through the water pipe 10, so that the liquid in the valve cavity 4 can be synchronously discharged while the liquid in the floating ball 9 is discharged outwards.

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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an auxiliary drainage mechanism of ball float trap, includes valve body (1), the one end fixedly connected with water inlet (2) of valve body (1), the other end fixedly connected with delivery port (3) of valve body (1), the inner chamber middle part of valve body (1) is provided with valve pocket (4), the last fixed surface of valve pocket (4) is connected with exhaust apparatus (5), blast pipe (6) have been seted up to the inner wall of valve body (1), the middle part fixed mounting of valve pocket (4) has filter plate (7), its characterized in that: the middle part fixedly connected with pivot (8) of valve pocket (4), the middle part swing joint of valve pocket (4) inner chamber has floater (9) that are located pivot (8) middle part, the inner chamber activity of floater (9) has cup jointed kicking block (12), valve pocket (4) are through the upper end intercommunication of water service pipe (10) and delivery port (3), and the lower extreme of kicking block (12) and water service pipe (10) upper end contact department are isosceles round platform form.

2. The auxiliary drain mechanism of a floating ball trap as claimed in claim 1, wherein: the water inlet (11) have been seted up to the upper surface of floater (9), counter weight liquid (13) have been placed to the inner chamber of floater (12), movable block (14) have been cup jointed in the side activity of floater (9), the upper surface of floater (12) is towards the inclined plane of movable block (14) slope, main water pipe (15) have been seted up at the middle part of movable block (14), the supplementary water pipe (16) of surface and main water pipe (15) intercommunication of movable block (14) have been seted up to the inner chamber of movable block (14), the square groove has been seted up to one side that movable block (14) are close to floater (9) inner chamber, and the square groove is sealed by the inner wall dislocation of floater (9).

3. The auxiliary drain mechanism of a floating ball trap as claimed in claim 1, wherein: one side of the movable block (14) close to the inner cavity of the floating ball (9) is movably connected with a rotating plate (17), one side of the rotating plate (17) is provided with a round hole for communicating the inner cavity of the floating ball (9) with a main water pipe (15), and the inner cavity of the movable block (14) is fixedly provided with a reed (18) for connecting the movable block (14) with the rotating plate (17).