CN216430526U

CN216430526U - High-temperature regulating valve of hydrogen production device

Info

Publication number: CN216430526U
Application number: CN202123109332.8U
Authority: CN
Inventors: 罗先念; 周鹏波; 梁有伟; 金建云; 高春瑞
Original assignee: Wuzhong Instrument Co Ltd
Current assignee: Wuzhong Instrument Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-03
Anticipated expiration: 2031-12-10

Abstract

The utility model provides a high-temperature regulating valve of a hydrogen production device, which comprises a valve body, a valve core and a sleeve, wherein the sleeve is fixedly arranged inside the valve body and is sleeved with the valve core; and a scraping device is arranged between the sleeve and the valve core, is close to the piston sealing ring and is in sealing connection with the piston sealing ring, and moves along with the valve core and is used for scraping dust and dirt on the inner wall of the sleeve. When the valve core moves, the scraping device moves along with the valve core and scrapes off the ash scale on the inner wall of the sleeve, so that the technical problem that the valve cannot be adjusted due to the fact that the piston sealing ring is easy to block is solved.

Description

High-temperature regulating valve of hydrogen production device

Technical Field

The utility model relates to the technical field of valves, especially be used for the governing valve, specifically a hydrogen plant high temperature type governing valve.

Background

At present, a hydrogen production device in the petrochemical industry can use furnace coke gas to purify hydrogen, so that a valve inner cavity for adjusting the furnace coke gas is easy to coke, and because the temperature of a medium is higher and the pressure is higher, a regulating valve on the device generally adopts a balanced cage type regulating valve, and a general modified polytetrafluoroethylene balance sealing ring cannot meet the working occasion of more than 300 ℃, so that the general balanced regulating valve can adopt a metal piston sealing ring. However, the coking defect of furnace coke gas can lead the sealing position of the piston sealing ring to be blocked, so that the valve can not be adjusted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the technical problem that the regulating valve is easy to block when the traditional hydrogen production device adopts furnace coke gas to purify hydrogen is solved.

The utility model provides a high-temperature regulating valve of a hydrogen production device, which comprises a valve body, a valve core and a sleeve, wherein the sleeve is fixedly arranged inside the valve body and is sleeved with the valve core;

and a scraping device is arranged between the sleeve and the valve core, is close to the piston sealing ring and is in sealing connection with the piston sealing ring, and moves along with the valve core and is used for scraping ash and dirt on the inner wall of the sleeve.

When the valve core moves, the scraping device moves along with the valve core and scrapes off the ash scale on the inner wall of the sleeve, so that the technical problem that the valve cannot be adjusted due to the fact that the piston sealing ring is easy to block is solved.

Further, the scraping device is a scraping ring, and a protrusion is arranged on the outer side of the scraping ring. The ash and dirt on the inner wall of the sleeve can be scraped through the protrusions, and the structure is simple.

Furthermore, the scraping ring is sleeved on a boss at the upper end of the valve core and is pressed and fixed through a pressing plate. The boss is used for scraping ring installation location, through fastener fixed connection clamp plate and case, realizes that the scraping ring compresses tightly fixedly, not only makes the scraping ring can dismantle the connection, still is convenient for scraping ring dismouting.

Furthermore, the cross section of the protrusion is triangular, the upper end face of the protrusion is parallel to the end face of the scraping ring, the tip of the protrusion forms an acute angle, and the scraping ring is located above the piston sealing ring. The triangular design of the bulges increases the strength of the bulges, and the bulges are convenient to scrape off dust and dirt; and the design of protruding up end makes when the regulating valve opens, scrapes the ash dirt when the case upward movement, and the effect is better.

Furthermore, the inner wall of the sleeve is provided with a plurality of uniformly distributed sewage discharge grooves, the upper ends of the sewage discharge grooves are open, and the lower ends of the sewage discharge grooves are closed. The ash and dirt scraped by the scraper are discharged to the valve cavity from the upper end of the sleeve through the dirt discharge groove and are taken out of the valve along with the medium.

Further, the scraping ring is made of metal, and the hardness of the scraping ring ranges from HRC 32-38. So set up, can ensure the effect that the scraper ring strikes off the ash scale, still make the scraper ring can produce slight deformation, difficult wearing and tearing.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view of the construction of the sleeve;

FIG. 4 is a cross-sectional view of the scraper ring;

FIG. 5 is an enlarged view at B in FIG. 4;

in the figure: 1. a valve body; 2. a valve core; 3. a sleeve; 4. scraping rings; 5. pressing a plate; 6. a piston seal ring; 31. a sewage draining groove; 41. and (4) protruding.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The first embodiment is as follows:

as shown in fig. 1, the utility model relates to a hydrogen production device high temperature type governing valve, including valve body 1 and case 2, still include sleeve 3, sleeve 3 fixed mounting is inside valve body 1 to cup joint case 2.

As shown in fig. 2, a scraping ring 4 is arranged between the sleeve 3 and the valve core 2, and the scraping ring 4 is sleeved on a boss at the upper end of the valve core 2, is positioned above the piston sealing ring 6, and is pressed and fixed by a pressing plate 5. The boss is used for scraping 4 installation location of ring, through bolt fixed connection clamp plate 5 and case 2, realizes that scraping 4 compresses tightly fixedly, not only makes scraping 4 can dismantle the connection, the 4 dismouting of scraping ring of still being convenient for.

The outer side of the scraping ring 4 is provided with a bulge 41 for scraping off the ash and dirt on the inner wall of the sleeve 3. As shown in fig. 4 and 5, the protrusion 41 has a triangular cross section, and the upper end surface thereof is parallel to the end surface of the scraper ring 4, and the tip thereof forms an acute angle. The triangular design of the protrusion 41 increases the strength of the protrusion 41, so that the protrusion 41 can conveniently scrape off dust and dirt; and the design of the upper end face of the bulge 41 ensures that when the regulating valve is opened, the valve core 2 scrapes dust and dirt when moving upwards, and the effect is better. The scraping ring 4 is made of metal with the hardness of HRC32, so that the effect of scraping the dust and dirt by the scraping ring 4 can be ensured, and the scraping ring 4 can generate fine deformation and is not easy to wear.

As shown in fig. 3, the inner wall of the sleeve 3 is provided with a plurality of evenly distributed sewage discharge grooves 31, the upper end of the sewage discharge groove 31 is open, and the lower end is closed. The ash and dirt scraped by the scraper are discharged from the upper end of the sleeve 3 to the valve cavity through the dirt discharging groove 31 and are taken out of the valve along with the medium.

When the valve core 2 moves, the scraping device moves along with the valve core 2 and scrapes off the ash scale on the inner wall of the sleeve 3, so that the technical problem that the valve cannot be adjusted due to the fact that the piston sealing ring 6 is easy to block is solved.

Example two: compared with the first embodiment, the differences are as follows: the scraper ring 4 is made of metal with the hardness of HRC 38.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a hydrogen plant high temperature type governing valve, includes valve body (1) and case (2), its characterized in that: the valve body (1) is fixedly arranged in the valve body, and the valve body (2) is sleeved with the sleeve (3);

and a scraping device is arranged between the sleeve (3) and the valve core (2) and is in sealing connection with the valve core through a piston sealing ring (6), and the scraping device is close to the piston sealing ring (6), moves along with the valve core (2) and is used for scraping dust and dirt on the inner wall of the sleeve (3).

2. The high-temperature-type regulator valve for a hydrogen generator according to claim 1, wherein: the scraping device is a scraping ring (4), and a protrusion (41) is arranged on the outer side of the scraping ring (4).

3. The high-temperature-type regulator valve for a hydrogen generator according to claim 2, wherein: the scraping ring (4) is sleeved on a boss at the upper end of the valve core (2) and is pressed and fixed through a pressing plate (5).

4. The high-temperature-type regulator valve for a hydrogen generator according to claim 2, wherein: the cross section of the protrusion (41) is triangular, the upper end face of the protrusion is parallel to the end face of the scraping ring (4), the sharp portion of the protrusion forms an acute angle, and the scraping ring (4) is located above the piston sealing ring (6).

5. The high-temperature-type regulator valve for a hydrogen generator according to claim 4, wherein: the inner wall of the sleeve (3) is provided with a plurality of evenly distributed sewage discharge grooves (31), the upper ends of the sewage discharge grooves (31) are open, and the lower ends of the sewage discharge grooves are closed.

6. The high-temperature-type regulator valve for a hydrogen generator according to claim 2, wherein: the scraping ring (4) is made of metal, and the hardness range of the scraping ring is HRC 32-38.