CN109027345B - Self-cleaning dustproof safety valve - Google Patents
Self-cleaning dustproof safety valve Download PDFInfo
- Publication number
- CN109027345B CN109027345B CN201810915020.XA CN201810915020A CN109027345B CN 109027345 B CN109027345 B CN 109027345B CN 201810915020 A CN201810915020 A CN 201810915020A CN 109027345 B CN109027345 B CN 109027345B
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- China
- Prior art keywords
- filter screen
- adjusting screw
- valve body
- valve
- safety
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Safety Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a self-cleaning dustproof safety valve which comprises a valve body, a valve cover, a safety sleeve, a precision filter screen, a self-cleaning impeller, a coarse filter screen, an upper movable push rod, a lower movable push rod, a measuring spring, an adjusting screw rod, an adjusting nut and a safety spring, wherein the valve cover is arranged on the valve body; the valve body is provided with an air pressure port and a pressure relief port, a coarse filter screen, a self-cleaning impeller, a dense filter screen and a condom are sequentially arranged in the air pressure port, two sides of the impeller are provided with brushes, and the air flow can drive the impeller to rotate so that the brushes clean impurities on the filter screen; the adjusting screw penetrates through the upper end of the valve cover to be in threaded connection with the adjusting nut, the adjusting screw and the two sides inside the valve cover are provided with the safety springs, the measuring springs are arranged between the adjusting screw and the upper and lower movable push rods, the measuring springs are connected with the pointer to penetrate through scales on the two sides of the slotted hole indicating slotted hole in the valve body while protecting the safety valves, and the scales correspond to different internal pressures and play a role in measuring the internal pressure. The invention has compact structure, can automatically clean internal impurities, can measure internal pressure, is protected by double springs, and is safe and reliable.
Description
Technical Field
The invention relates to the technical field of safety valves, in particular to a self-cleaning dustproof safety valve.
Background
China is one of the major countries for producing cement, and the best transportation mode is the current transportation mode by adopting bulk cement tank cars and bulk cement tanks for shipment, which not only ensures the cement quality, but also is beneficial to the environment without being polluted by cement dust. The dustproof device and the reliability design of the safety valve of the cement tank are key problems to be solved urgently in the research of the cement tank. The design of the cement tank safety valve is concerned with the safety of the whole tank body, and at present, the safety valve is only prevented from being blocked by a filter screen. However, when the safety valve is used for a long time, the filter screen of the safety valve can be blocked, and a single spring can be out of work, so that the safety valve can be in danger to the normal work, and the personal safety of the tank body and an operator can be endangered.
Disclosure of Invention
Accordingly, the present invention is directed to a self-cleaning dustproof safety valve, which has a self-cleaning function to prevent clogging, and uses a dual spring to increase reliability and measure the internal pressure of a tank.
In order to achieve the purpose, the invention adopts the technical scheme that: a self-cleaning dustproof safety valve comprises a valve body, a valve cover fixedly connected with the valve body, a condom, a precise filter screen, a coarse filter screen, a cleaning impeller, an up-and-down movable push rod, a measuring spring, an adjusting screw rod, an adjusting nut and a safety spring;
the valve body is provided with an air pressure port and a pressure relief port, and the air pressure port is sequentially provided with a coarse strainer, a clean impeller, a precise filter screen and a condom from inside to outside;
the adjusting screw penetrates through the upper end of the valve cover and is in threaded connection with the adjusting nut, the adjusting screw is hollow, the up-and-down movable push rod comprises a piston rod and a piston, the piston rod is installed in the adjusting screw and can slide relative to the adjusting screw, and the piston and a valve cavity in the valve body are arranged at the pressure relief opening in a matched mode;
the measuring spring sleeve is arranged on the piston rod and is arranged between the piston and the adjusting screw rod.
Further, clean formula impeller includes blade and outer lane wheel hub, the blade is fixed in outer lane wheel hub, be equipped with the ball groove that the diameter is greater than the atmospheric pressure mouth in the valve body, the outer lane wheel hub outside also is equipped with the ball groove, be equipped with the ball between the ball groove of outer lane wheel hub and valve body.
Furthermore, two sides of the blade of the cleaning type impeller are respectively provided with a brush capable of cleaning dust and impurities on the precise filter screen and the coarse filter screen.
Further, the safety sleeve is in interference fit with the valve body.
Compared with the prior art, the invention has the beneficial effects that:
1. the coarse filter screen and the precise filter screen are arranged in the air pressure port, and the two layers of filter screens can be arranged to ensure that the filter screens do not deform or fall off under the action of larger pressure.
2. The invention has strong safety, the cleaning impeller can rotate in the valve body under the action of airflow, the hairbrush on the blade can clean the coarse filter screen and the precise filter screen, the automatic cleaning of the safety valve can be realized, and the blockage can be prevented.
3. The invention reduces the dust entering the air through the self-cleaning filter screen, thereby achieving the purpose of environmental protection.
4. According to the invention, through double spring protection, when the measuring spring fails, the safety spring can protect the safety valve, so that the reliability of the safety valve is greatly improved.
5. The measuring spring is provided with the pointer, and the two sides of the slotted hole are provided with the pressure indicating scales, so that the pressure data in the tank body can be read in real time.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the mounting base of the present invention;
wherein, 1-valve body, 2-valve cover, 3-condom, 4-precise filter screen, 5-coarse filter screen, 6-clean impeller, 601-blade, 602-outer ring hub, 7-up-down movable push rod, 8-measuring spring, 9-adjusting screw, 10-adjusting nut, 11-safety spring, 12-air pressure port, 13-pressure relief port, 14-pointer, 15-slotted hole, 16-ball.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
The invention relates to a self-cleaning dustproof safety valve, which comprises a valve body 1, a valve cover 2 fixedly connected with the valve body, a condom 3, a precision filter screen 4, a coarse filter screen 5, a cleaning impeller 6, an upper movable push rod 7, a lower movable push rod 7, a measuring spring 8, an adjusting screw rod 9, an adjusting nut 10 and a safety spring 11;
the valve body 1 is provided with an air pressure port 12 and a pressure relief port 13, and the air pressure port 12 is sequentially provided with a coarse filter screen 5, a clean impeller 6, a precise filter screen 4 and a condom 3 from inside to outside;
the adjusting screw 9 penetrates through the upper end of the valve cover 2 and is in threaded connection with the adjusting nut 10, the adjusting screw 9 is hollow, the up-and-down movable push rod 7 comprises a piston rod and a piston, the piston rod is installed in the adjusting screw 9 and can slide relative to the adjusting screw 9, and the piston and a valve cavity in the valve body 1 are arranged at the pressure relief opening 13 in a matched mode;
the measuring spring 8 is sleeved on the piston rod and is arranged between the piston and the adjusting screw rod 9.
The measuring spring is provided with a pointer 14, the side surface of the valve body 1 is provided with an axial slotted hole 15 through which the pointer 14 can pass, and two sides of the slotted hole 15 are provided with pressure indicating scales. The safety springs 11 are respectively installed between the adjusting screw 9 and the valve cover 2 at positions on both sides of the adjusting screw 9.
As shown in fig. 2, the clean impeller 6 includes a blade 601 and an outer ring hub 602, the blade 601 is fixed in the outer ring hub 602, a ball groove with a diameter larger than that of the air pressure port 12 is provided in the valve body 1, a ball groove is also provided on the outer side of the outer ring hub 602, and balls 16 are provided between the outer ring hub 602 and the ball groove of the valve body 1.
In the above embodiment, the safety sleeve 3 is in interference fit with the valve body 1, and plays a role in fixing the internal device; the two sides of the blade 601 of the cleaning type impeller 6 are respectively provided with a brush capable of cleaning dust and impurities on the precise filter screen 4 and the coarse filter screen 5, the cleaning type impeller 6 can rotate in the valve body 1 under the action of air flow, the brush on the blade 601 can clean the coarse filter screen and the precise filter screen, automatic cleaning of the safety valve can be achieved, and blockage is prevented.
The adjusting screw 9 penetrates through the upper end of the valve cover 2 and is in threaded connection with the adjusting nut 10, the adjusting nut 10 can be rotated to adjust the distance between the adjusting screw 9 and the valve cover 2 so as to adjust the pre-tightening force of the safety spring 11 to adjust the pressure relief pressure, and when the pressure in the tank body is small, the up-and-down movable push rod 7 blocks the pressure relief opening 13 to prevent air pressure from leaking; a measuring spring 8 is arranged between the upper and lower movable push rods 7 and the adjusting screw 9, when the pressure in the tank body is higher, the air flow pushes the upper and lower movable push rods 7 to move upwards, and the pressure relief port 13 is gradually leaked out for pressure relief; the larger the internal pressure of the tank is, the larger the upward movement displacement of the piston is, the larger the caliber of the leaked pressure relief port 13 is, the faster the pressure relief is, the pointer is arranged on the measuring spring 9, the axial slotted hole 15 through which the pointer 14 can pass is arranged on the side surface of the valve body 1, pressure indication scales are arranged on two sides of the slotted hole 15, the internal pressure of the tank can be displayed in real time when the measuring spring 8 has the protection effect on the safety valve, and the pressure indication scales on two sides of the slotted hole are calibrated during production. When the measuring spring 8 fails and is not compressed, when the pressure in the tank body is too high, the upper and lower movable push rods 7, the adjusting screw rod 9 and the adjusting nut 10 are pushed to move upwards together, and the safety spring 11 plays a role in protection.
The invention has self-cleaning function, prevents blockage, increases the reliability by using the double springs, can measure the internal pressure of the tank body, is simple and convenient to manufacture, and effectively avoids potential safety hazard caused by overpressure of the tank body.
The present invention has been described in detail with reference to the specific embodiments, but the present invention is only one of the embodiments, and the present invention is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (5)
1. A self-cleaning dustproof safety valve comprises a valve body (1), a valve cover (2) fixedly connected with the valve body, a condom (3), a precise filter screen (4) and a coarse filter screen (5), and is characterized by also comprising a cleaning impeller (6), an upper and lower movable push rod (7), a measuring spring (8), an adjusting screw rod (9), an adjusting nut (10) and a safety spring (11);
the valve body (1) is provided with an air pressure port (12) and a pressure relief port (13), and the air pressure port (12) is sequentially provided with a coarse filter screen (5), a clean impeller (6), a precise filter screen (4) and a condom (3) from inside to outside;
the adjusting screw rod (9) penetrates through the upper end of the valve cover (2) and is in threaded connection with the adjusting nut (10), the adjusting screw rod (9) is hollow, the up-and-down movable push rod (7) comprises a piston rod and a piston, the piston rod is installed in the adjusting screw rod (9) and can slide relative to the adjusting screw rod (9), the safety springs (11) are respectively installed between the adjusting screw rod (9) and the valve cover (2) and are located at the two sides of the adjusting screw rod (9), and the piston and a valve cavity in the valve body (1) are arranged at the pressure relief opening (13) in a matched mode;
the measuring spring (8) is sleeved on the piston rod and is arranged between the piston and the adjusting screw rod (9).
2. A self-cleaning dust-proof safety valve according to claim 1, wherein: the measuring spring is provided with a pointer (14), the side surface of the valve body (1) is provided with an axial slotted hole (15) through which the pointer (14) can pass, and two sides of the slotted hole (15) are provided with pressure indication scales.
3. A self-cleaning dust-proof safety valve according to claim 1, wherein: clean formula impeller (6) include blade (601) and outer lane wheel hub (602), blade (601) are fixed in outer lane wheel hub (602), be equipped with the ball groove that the diameter is greater than atmospheric pressure mouth (12) in valve body (1), outer lane wheel hub (602) outside also is equipped with the ball groove, be equipped with ball (16) between the ball groove of outer lane wheel hub (602) and valve body (1).
4. A self-cleaning dust-proof safety valve according to claim 1, wherein: the two sides of the blade (601) of the cleaning type impeller (6) are respectively provided with a brush capable of cleaning dust and impurities on the precise filter screen (4) and the coarse filter screen (5).
5. A self-cleaning dust-proof safety valve according to claim 1, wherein: the safety sleeve (3) is in interference fit with the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915020.XA CN109027345B (en) | 2018-08-13 | 2018-08-13 | Self-cleaning dustproof safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915020.XA CN109027345B (en) | 2018-08-13 | 2018-08-13 | Self-cleaning dustproof safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027345A CN109027345A (en) | 2018-12-18 |
| CN109027345B true CN109027345B (en) | 2020-09-08 |
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ID=64632972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810915020.XA Active CN109027345B (en) | 2018-08-13 | 2018-08-13 | Self-cleaning dustproof safety valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN109027345B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116966690B (en) * | 2019-03-04 | 2024-06-04 | 正泰电气股份有限公司 | Self-cleaning ventilation filtering device and complete switch equipment of preassembled transformer substation |
| CN109990406B (en) * | 2019-04-09 | 2020-03-10 | 中南大学 | Indoor ventilation and air purification circulation system |
| CN114046494B (en) * | 2021-09-23 | 2024-03-22 | 华能山东发电有限公司烟台发电厂 | Communication system and standby method for industrial steam extraction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673004U (en) * | 2010-04-21 | 2010-12-15 | 于建中 | Linear methane pressure gauge |
| CN204226766U (en) * | 2014-11-05 | 2015-03-25 | 浙江海洋学院 | A kind of pressure regulator valve |
| CN105461180A (en) * | 2016-01-12 | 2016-04-06 | 浙江大学 | Water quality purification integrated device and method for eutrophic water |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2176047C1 (en) * | 2000-12-08 | 2001-11-20 | Петросян Липарит Саркисович | Safety valve |
| EP1219874B1 (en) * | 2000-12-28 | 2004-08-18 | Col-Ven S.A. | Pressure-controlled three-way valve device |
| CN205244516U (en) * | 2015-12-31 | 2016-05-18 | 平湖市瑞阳精密机械有限公司 | Low temperature -decreased pressure reducer |
| CN206036377U (en) * | 2016-08-31 | 2017-03-22 | 浙江瑞格铜业有限公司 | Visual -adjustment reducing valve |
| CN206257320U (en) * | 2016-12-08 | 2017-06-16 | 龙工（江西）机械有限公司 | The strong safety valve of stain resistance |
-
2018
- 2018-08-13 CN CN201810915020.XA patent/CN109027345B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673004U (en) * | 2010-04-21 | 2010-12-15 | 于建中 | Linear methane pressure gauge |
| CN204226766U (en) * | 2014-11-05 | 2015-03-25 | 浙江海洋学院 | A kind of pressure regulator valve |
| CN105461180A (en) * | 2016-01-12 | 2016-04-06 | 浙江大学 | Water quality purification integrated device and method for eutrophic water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109027345A (en) | 2018-12-18 |
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