CN214171427U - Vacuum valve for tank car - Google Patents
Vacuum valve for tank car Download PDFInfo
- Publication number
- CN214171427U CN214171427U CN202023095198.6U CN202023095198U CN214171427U CN 214171427 U CN214171427 U CN 214171427U CN 202023095198 U CN202023095198 U CN 202023095198U CN 214171427 U CN214171427 U CN 214171427U
- Authority
- CN
- China
- Prior art keywords
- vacuum valve
- valve
- valve body
- vacuum
- tank car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model provides a vacuum valve for tank car, includes vacuum valve body (8), upper cover (6), baffle (1), spring (7), valve clack axle (9), filter screen (2) and valve clack (4), upper cover (6) are connected in vacuum valve body (8) top, inside vacuum valve body (8) was located to valve clack axle (9), baffle (1) are equipped with two altogether and connect in valve clack axle (9), surface connection has nut (5) on baffle (1), nut (5) threaded connection is in valve clack axle (9), spring (7) are located between two baffle (1), spring (7) cup joint in valve clack axle (9), filter screen (2) are located baffle (1) bottom that spring (7) bottom is connected, valve clack (4) are connected in valve clack axle (9) bottom, valve clack (4) are located vacuum valve body (8) bottom, the valve clack (4) is connected with a sealing ring (3).
Description
Technical Field
The utility model relates to a vacuum valve technical field, in particular to vacuum valve for tank car.
Background
The vacuum valve refers to a valve with working pressure lower than standard atmospheric pressure. The vacuum valve refers to a vacuum system component used for changing the direction of air flow, adjusting the magnitude of air flow and cutting off or connecting a pipeline in a vacuum system. Vacuum valves are commonly employed on the top of tankers or other pressure vessels to control the negative pressure within the tank to maintain a corresponding pressure range. The valve body of the existing vacuum valve is not durable in material, the valve body is corroded in time, the service life is relatively poor, the design pressure of the vacuum valve cannot be changed, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a vacuum valve for a tank car, which overcomes the defects in the prior art;
in order to solve the technical problem, the utility model provides a following technical scheme:
a vacuum valve for a tank car comprises a vacuum valve body, an upper cover, baffle plates, springs, valve flap shafts, a filter screen and a valve flap, wherein the upper cover is connected to the top of the vacuum valve body;
optionally, the sealing ring is made of fluororubber;
optionally, the valve body of the vacuum valve is made of stainless steel, so that the vacuum valve is durable and has good corrosion resistance;
optionally, the outer side wall of the valve body of the vacuum valve is provided with threads, and the vacuum valve is installed by adopting external threads, so that the vacuum valve is convenient and quick to install;
optionally, the filter screen is a fire retardant filter screen, so that certain guarantee is brought to safety in the using process;
optionally, the upper cover is provided with a vent hole, so that pressure balance is facilitated;
has the advantages that: the utility model discloses a stainless steel, durable has good corrosion resisting property to this vacuum valve body passes through the collocation of nut, baffle, spring and valve lamella axle and can realize the regulation to design pressure, can come to change valve body design pressure according to service environment or special requirement and customer's demand, and it is nimble convenient to use, and the vacuum valve body adopts the external screw thread installation simultaneously, and simple to operate is swift, and built-in back-fire relief filter screen brings certain guarantee to safe in utilization.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein, the valve comprises a baffle plate 1, a filter screen 2, a sealing ring 3, a valve clack 4, a nut 5, an upper cover 6, a spring 7, a vacuum valve body 8 and a valve clack shaft 9.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the device comprises a vacuum valve body 8, an upper cover 6, baffle plates 1, springs 7, a valve clack shaft 9, a filter screen 2 and a valve clack 4, wherein the upper cover 6 is connected to the top of the vacuum valve body 8, the valve clack shaft 9 is arranged inside the vacuum valve body 8, the two baffle plates 1 are arranged and connected to the valve clack shaft 9, the upper surface of the baffle plate 1 is connected with a nut 5, the nut 5 is in threaded connection with the valve clack shaft 9, the springs 7 are arranged between the two baffle plates 1, the springs 7 are sleeved on the valve clack shaft 9, the filter screen 2 is arranged at the bottom of the baffle plate 1 connected to the bottom of the springs 7, the valve clack 4 is connected to the bottom of the valve clack shaft 9, the valve clack 4 is arranged at the bottom of the vacuum valve body 8, and the valve clack 4 is connected with a sealing ring 3; the sealing ring 3 is made of fluororubber; the vacuum valve body 8 is made of stainless steel, is durable and has good corrosion resistance; the outer side wall of the vacuum valve body 8 is provided with threads, and the vacuum valve body is installed by adopting external threads, so that the vacuum valve is convenient and quick to install; the filter screen 2 is a fire retardant filter screen, so that certain guarantee is brought to the safety in the use process; the upper cover 6 is provided with a vent hole, so that pressure balance is facilitated.
The working principle is as follows: when using this device, with 8 threaded installations of vacuum valve body in the tank car top negative pressure in the control jar, when jar internal pressure is less than jar external pressure, jar external pressure acts on vacuum valve body 8, make valve clack 4 overcome spring 7 pressure and open 8 bottom openings of vacuum valve body, thereby realize that vacuum valve body 8 inhales to the jar, when reaching the pressure range, valve clack 4 makes 8 bottom openings of vacuum valve body closed under spring 7 effort, and it is sealed through sealing washer 3, filter screen 2 can prevent the condition of a fire from taking place in the use, play the back-fire relief effect.
Claims (6)
1. A vacuum valve for a tank car is characterized in that: comprises a vacuum valve body (8), an upper cover (6), a baffle plate (1), a spring (7), a valve clack shaft (9), a filter screen (2) and a valve clack (4), the upper cover (6) is connected with the top of the vacuum valve body (8), the valve flap shaft (9) is arranged inside the vacuum valve body (8), the two baffles (1) are connected to the valve flap shaft (9), the upper surface of the baffle (1) is connected with a nut (5), the nut (5) is in threaded connection with the valve flap shaft (9), the spring (7) is arranged between the two baffle plates (1), the spring (7) is sleeved on the valve flap shaft (9), the filter screen (2) is arranged at the bottom of the baffle (1) connected with the bottom of the spring (7), valve clack (4) are connected in valve lamella axle (9) bottom, vacuum valve body (8) bottom is located in valve clack (4), valve clack (4) are connected with sealing washer (3).
2. The vacuum valve for a tank car according to claim 1, wherein: the sealing ring (3) is made of fluororubber.
3. The vacuum valve for a tank car according to claim 1, wherein: the vacuum valve body (8) is made of stainless steel.
4. The vacuum valve for a tank car according to claim 1, wherein: the outer side wall of the vacuum valve body (8) is provided with threads.
5. The vacuum valve for a tank car according to claim 1, wherein: the filter screen (2) is a fire retardant filter screen.
6. The vacuum valve for a tank car according to claim 1, wherein: the upper cover (6) is provided with a vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023095198.6U CN214171427U (en) | 2020-12-21 | 2020-12-21 | Vacuum valve for tank car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023095198.6U CN214171427U (en) | 2020-12-21 | 2020-12-21 | Vacuum valve for tank car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214171427U true CN214171427U (en) | 2021-09-10 |
Family
ID=77608024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023095198.6U Active CN214171427U (en) | 2020-12-21 | 2020-12-21 | Vacuum valve for tank car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214171427U (en) |
-
2020
- 2020-12-21 CN CN202023095198.6U patent/CN214171427U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214171427U (en) | Vacuum valve for tank car | |
| CN211117826U (en) | Breather valve | |
| CN203686277U (en) | Safety relief valve | |
| CN202704090U (en) | Pure water storage device of water purification equipment | |
| CN211145484U (en) | Anti-blocking type gas pressure limiting valve | |
| CN211117836U (en) | Pressure reducing valve for liquefied gas | |
| CN217526144U (en) | Improved respirator valve | |
| AU2021200499A1 (en) | Novel low-pressure gas pressure reducing valve | |
| CN210950820U (en) | Leakage protection device for liquefied petroleum gas burner | |
| CN210088138U (en) | Corrugated pipe automatic control regulating valve | |
| CN221034147U (en) | Main body structure of hanging valve disc type breather valve | |
| CN217084109U (en) | Transformer pressure relief valve calibration device | |
| CN211570100U (en) | Novel oil storage tank of hydrogen oil filling station | |
| CN217056485U (en) | A pilot operated relief valve for natural gas | |
| CN219863104U (en) | Stable adjustable vacuum suppressor | |
| CN102563151A (en) | Automatic overpressure exhaust valve | |
| CN210240721U (en) | Butterfly valve convenient to assembly | |
| CN217081490U (en) | PTFE (polytetrafluoroethylene) -lined plug valve | |
| CN215410402U (en) | Flexible diaphragm explosion venting valve capable of being automatically reset and continuously used | |
| CN220151983U (en) | Exhaust valve joint | |
| CN211849753U (en) | External pressure-bearing type water tank water feeder | |
| CN211667219U (en) | Self-operated pressure balance valve | |
| CN214171431U (en) | Positive and negative pressure protector with blasting protection | |
| CN217815324U (en) | LNG vaporizing station protection device | |
| CN215172661U (en) | Gas safety cut-off valve capable of being flexibly installed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |