CN210624140U - Float type drain valve - Google Patents
Float type drain valve Download PDFInfo
- Publication number
- CN210624140U CN210624140U CN201921743003.9U CN201921743003U CN210624140U CN 210624140 U CN210624140 U CN 210624140U CN 201921743003 U CN201921743003 U CN 201921743003U CN 210624140 U CN210624140 U CN 210624140U
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- Prior art keywords
- shell
- piston
- exhaust
- regulating nut
- pressure regulating
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- Expired - Fee Related
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- Float Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
A kind of floating ball type steam trap, it includes the valve block, the valve bonnet (2), the ball float (3), the water drain nozzle (4) and piston exhaust apparatus, the valve block includes the first body (5) and second body (6), the upper portion of the first body (5) has medium to enter the pipeline, the upper portion of the second body (6) has medium discharge pipelines, the water drain nozzle (4) is installed in the bottom of the second body (6), the water inlet end of the water drain nozzle (4) stretches into the first body (5), link up the cavity of the first body (5) with the cavity of the second body (6) through the water drain nozzle (4), the valve bonnet (2) is connected with flange seal of the top of the first body (5), the ball float (3) is located in the first body (5); the advantages are that: the exhaust pressure of the exhaust device can be adjusted, and the gas in the pipeline can be completely exhausted.
Description
Technical Field
The utility model relates to the field of mechanical equipment, concretely relates to float type trap.
Background
At present, the existing free floating ball type drain valve has the problem that a ball body cannot tightly seal a drain nozzle; the steam trap is arranged on pipelines with different thicknesses, and the existing steam trap exhaust device cannot adjust the exhaust performance according to the pressure of gas because the thickness of the pipeline is different from the pressure of gas required to be exhausted in different valves of media.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a floating ball type drain valve aiming at the defects.
The utility model comprises a valve body, a valve cover, a floating ball, a drain nozzle and a piston exhaust device,
the valve body comprises a first shell and a second shell, a medium inlet pipeline is arranged at the upper part of the first shell, a medium outlet pipeline is arranged at the upper part of the second shell, a water discharging nozzle is arranged at the bottom of the second shell, the water inlet end of the water discharging nozzle extends into the first shell, the inner cavity of the first shell is communicated with the inner cavity of the second shell through the water discharging nozzle, a valve cover is connected with a flange at the top of the first shell in a sealing way, a floating ball is positioned in the first shell,
the piston exhaust device comprises an upper pressure plate, a pressure regulating nut, a piston, a spring and a lower pressure plate,
the top of the second shell is provided with an air cylinder, the upper part in the air cylinder is provided with internal threads, the bottom of the upper pressure plate is provided with an exhaust column, the exhaust column is symmetrically provided with a pair of third exhaust holes, the bottom surface of the exhaust column is provided with a hemispherical plug, the pressure regulating nut is provided with an exhaust column mounting hole, the top of the pressure regulating nut is annularly and uniformly provided with at least a pair of torsion grooves, the outer wall of the pressure regulating nut is provided with external threads matched with the internal threads of the air cylinder, the upper pressure plate is mounted at the top of the air cylinder, the exhaust column is positioned in the exhaust column mounting,
be provided with the sealing washer on the piston, the center department of piston opens has first exhaust hole, and the exit end of first exhaust hole is the hemisphere recess that uses with the cooperation of hemisphere end cap, and the piston is located the cylinder, and spring mounting is between pressure regulating nut and piston, and it has the second exhaust hole that is linked together with first exhaust hole to open on the holding down plate, and the holding down plate is installed in the cylinder bottom to be located the piston below.
A filter screen is arranged in the first shell and is positioned above the floating ball.
The floating ball type spring power generation device is characterized by further comprising three floating ball limiting springs, three spring fixing seats are annularly and uniformly distributed on the floating ball, one ends of the three floating ball limiting springs are fixedly connected with the three spring fixing seats respectively, and the other ends of the three floating ball limiting springs are fixedly connected with the inner wall of the first shell.
The utility model has the advantages that: the exhaust pressure of the exhaust device can be adjusted, and the gas in the pipeline can be completely exhausted.
Description of the drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional structure diagram of the present invention.
Fig. 3 is a schematic diagram of a partially enlarged structure of fig. 2 according to the present invention.
Fig. 4 is an exploded view of the piston venting device of the present invention.
Detailed Description
As shown in the attached drawing, the utility model comprises a valve body, a valve cover 2, a floating ball 3, a water discharging nozzle 4 and a piston exhaust device,
the valve body comprises a first shell 5 and a second shell 6, a medium inlet pipeline is arranged at the upper part of the first shell 5, a medium discharge pipeline is arranged at the upper part of the second shell 6, a water discharge nozzle 4 is arranged at the bottom of the second shell 6, the water inlet end of the water discharge nozzle 4 extends into the first shell 5, the inner cavity of the first shell 5 is communicated with the inner cavity of the second shell 6 through the water discharge nozzle 4, a valve cover 2 is connected with a flange at the top of the first shell 5 in a sealing way, a floating ball 3 is positioned in the first shell 5,
the piston exhaust device comprises an upper pressure plate 12, a pressure regulating nut 13, a piston 14, a spring 15 and a lower pressure plate 16,
the top of the second shell 6 is provided with an air cylinder 17, the upper part in the air cylinder 17 is provided with internal threads, the bottom of the upper pressure plate 12 is provided with an exhaust column 18, the exhaust column 18 is symmetrically provided with a pair of third exhaust holes 19, the bottom surface of the exhaust column 18 is provided with a hemispherical plug 20, the pressure regulating nut 13 is provided with an exhaust column mounting hole, the top of the pressure regulating nut 13 is annularly and uniformly provided with at least a pair of torsion grooves 24, the outer wall of the pressure regulating nut 13 is provided with external threads matched with the internal threads of the air cylinder 17, the upper pressure plate 12 is arranged at the top of the air cylinder 17, the exhaust column 18 is positioned in the exhaust column mounting,
the piston 14 is provided with a sealing ring 21, a first exhaust hole 22 is formed in the center of the piston 14, the outlet end of the first exhaust hole 22 is a hemispherical groove 23 matched with the hemispherical plug 20 for use, the piston 14 is located in the cylinder 17, the spring 15 is installed between the pressure regulating nut 13 and the piston 14, the lower pressing plate 16 is provided with a second exhaust hole communicated with the first exhaust hole 22, and the lower pressing plate 16 is installed at the bottom of the cylinder 17 and located below the piston 14.
A filter screen 25 is arranged in the first shell 5, and the filter screen 25 is positioned above the floating ball 3.
It also has three floater limiting spring 26, and the annular equipartition is provided with three spring fixing base on the floater 3, and three floater limiting spring 26's one end respectively with three spring fixing base fixed connection, the other end and the inner wall fixed connection of first casing 5 of three floater limiting spring 26.
The working mode and principle are as follows: when the device is started to work, air in the pipeline enters the pipeline through a medium of the first shell 5 and enters the first shell 5, the air sequentially passes through the second exhaust hole, the first exhaust hole 22 and the third exhaust hole 19 to be exhausted out of the drain valve, condensed water enters the first shell 5, the liquid level of the condensed water rises, the floating ball 3 rises, the drain nozzle 4 is communicated, the condensed water quickly enters the second shell 6 from the drain nozzle 4 under the pressure action of steam and is then exhausted through the medium exhaust pipeline, when the liquid level drops, as the liquid pressure in the first shell 5 is unevenly distributed and the pressure at the water inlet of the drain nozzle 4 is lowest, the pressure is higher as far as the drain nozzle 4 is away, the floating ball 3 floating on the liquid level is subjected to unbalanced force to push the floating ball 3 to float towards the drain nozzle, and the floating ball is simultaneously dragged by a boss at the bottom of the first shell 5 after the floating ball 3 completely seals the drain nozzle 4, the float cannot continue to descend, at which time the drain nozzle 4 is closed, the condensed water stops being drained, and the steam is prevented from escaping. The steam will increase the pressure in the first housing 5, and when the pressure rises, the piston 14 will be lifted, the spring 15 will be compressed, and the hemispherical recess 23 will contact and seal with the hemispherical plug 20, preventing the steam in the valve body from being discharged by the piston exhaust device. When the exhaust volume of the piston exhaust device needs to be adjusted, a worker twists the pressure regulating nut 13 to ascend or descend, so that the stroke of the piston 14 can be increased or reduced, and the purpose of adjustment is achieved; the three floating ball limiting springs 26 play roles in assisting positioning and buffering the floating ball 3, and prevent the floating ball 3 from colliding with the valve body to damage the floating ball 3 when steam or condensed water suddenly enters the valve body.
Claims (3)
1. A floating ball type drain valve is characterized in that the drain valve comprises a valve body, a valve cover (2), a floating ball (3), a drain nozzle (4) and a piston exhaust device,
the valve body comprises a first shell (5) and a second shell (6), a medium inlet pipeline is arranged on the upper portion of the first shell (5), a medium discharge pipeline is arranged on the upper portion of the second shell (6), a water discharge nozzle (4) is installed at the bottom of the second shell (6), the water inlet end of the water discharge nozzle (4) extends into the first shell (5), the inner cavity of the first shell (5) is communicated with the inner cavity of the second shell (6) through the water discharge nozzle (4), a valve cover (2) is in flange sealing connection with the top of the first shell (5), a floating ball (3) is positioned in the first shell (5),
the piston exhaust device comprises an upper pressure plate (12), a pressure regulating nut (13), a piston (14), a spring (15) and a lower pressure plate (16),
an air cylinder (17) is arranged at the top of the second shell (6), internal threads are arranged at the upper part in the air cylinder (17), an exhaust column (18) is arranged at the bottom of the upper pressure plate (12), a pair of third exhaust holes (19) are symmetrically distributed on the exhaust column (18), a hemispherical plug (20) is arranged at the bottom surface of the exhaust column (18), an exhaust column mounting hole is formed in the pressure regulating nut (13), at least one pair of torsion grooves (24) are annularly and uniformly distributed at the top of the pressure regulating nut (13), external threads matched with the internal threads of the air cylinder (17) are arranged on the outer wall of the pressure regulating nut (13), the upper pressure plate (12) is arranged at the top of the air cylinder (17), and the exhaust column (18) is positioned in the exhaust column mounting hole of the pressure,
be provided with sealing washer (21) on piston (14), the center department of piston (14) opens and has first exhaust hole (22), the exit end of first exhaust hole (22) is hemisphere recess (23) of using with hemisphere end cap (20) cooperation, piston (14) are located cylinder (17), spring (15) are installed between pressure regulating nut (13) and piston (14), it has the second exhaust hole that is linked together with first exhaust hole (22) to open on holding down plate (16), holding down plate (16) are installed in cylinder (17) bottom, and be located piston (14) below.
2. A trap as claimed in claim 1, characterized in that a screen (25) is arranged in the first housing (5), the screen (25) being located above the float (3).
3. The float type steam trap according to claim 1, characterized in that it further comprises three float ball limiting springs (26), three spring fixing seats are annularly and uniformly arranged on the float ball (3), one ends of the three float ball limiting springs (26) are respectively and fixedly connected with the three spring fixing seats, and the other ends of the three float ball limiting springs (26) are fixedly connected with the inner wall of the first housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743003.9U CN210624140U (en) | 2019-10-17 | 2019-10-17 | Float type drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743003.9U CN210624140U (en) | 2019-10-17 | 2019-10-17 | Float type drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210624140U true CN210624140U (en) | 2020-05-26 |
Family
ID=70761599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921743003.9U Expired - Fee Related CN210624140U (en) | 2019-10-17 | 2019-10-17 | Float type drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210624140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542013A (en) * | 2019-10-17 | 2019-12-06 | 荆门市中金铝业铸造有限公司 | Float type drain valve |
-
2019
- 2019-10-17 CN CN201921743003.9U patent/CN210624140U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542013A (en) * | 2019-10-17 | 2019-12-06 | 荆门市中金铝业铸造有限公司 | Float type drain valve |
| CN110542013B (en) * | 2019-10-17 | 2024-03-29 | 荆门市中金铝业铸造有限公司 | Floating ball type drain valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 Termination date: 20201017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |