CN214838457U

CN214838457U - Low-temperature valve for hydrogen liquefaction process

Info

Publication number: CN214838457U
Application number: CN202023237331.7U
Authority: CN
Inventors: 陈慧超
Original assignee: Shanghai Lanze Energy Technology Co ltd
Current assignee: Shanghai Lanze Energy Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-23
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a low temperature valve for hydrogen liquefaction process, the water control valve comprises a valve body, the valve body upper wall rotates and is connected with the valve rod, valve rod lateral wall fixedly connected with fixed strip, fixed strip lateral wall fixedly connected with valve plate, valve plate lateral wall fixedly connected with sealing washer, be equipped with on the valve body and be used for driving valve plate pivoted actuating mechanism, actuating mechanism includes the set casing of fixed connection at the valve body lateral wall, the fixed casing upper wall fixedly connected with fixed plate, fixed plate lateral wall fixedly connected with electric telescopic handle, electric telescopic handle's flexible end fixedly connected with rack, valve rod lateral wall fixedly connected with gear, wheel and rack toothing. The utility model discloses can realize the switch of valve, easy operation, the people of being convenient for use can also adjust the internal fluid flow of valve, and the accuracy is higher, has guaranteed hydrogen liquefaction's work efficiency.

Description

Low-temperature valve for hydrogen liquefaction process

Technical Field

The utility model relates to the technical field of valves, especially, relate to a low temperature valve for hydrogen liquefaction process.

Background

The valves are pipe fittings for opening and closing pipes, controlling flow direction, adjusting and controlling parameters of the transported media, the valves are of the types of ball valves, butterfly valves and the like, and during the hydrogen liquefaction process, low-temperature valves are often arranged on the pipes for transporting the fluids and are used for controlling the flow or stop of the media in the pipes and adjusting the flow of the media.

The general manual rotation valve rod of traditional cryogenic valve, control valve's switch, complex operation, and be difficult to according to the accurate flow in the governing valve of demand through artificial mode to influence the liquefaction efficiency of hydrogen, so need design a cryogenic valve for hydrogen liquefaction process and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a low-temperature valve for a hydrogen liquefaction process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a low temperature valve for hydrogen liquefaction process, includes the valve body, the valve body upper wall rotates and is connected with the valve rod, valve rod lateral wall fixedly connected with fixed strip, fixed strip lateral wall fixedly connected with valve plate, valve plate lateral wall fixedly connected with sealing washer, be equipped with on the valve body and be used for driving valve plate pivoted actuating mechanism, actuating mechanism includes the set casing of fixed connection at the valve body lateral wall, set casing upper wall fixedly connected with fixed plate, fixed plate lateral wall fixedly connected with electric telescopic handle, electric telescopic handle's flexible end fixedly connected with rack, valve rod lateral wall fixedly connected with gear, wheel and rack toothing.

Preferably, the lower wall of the rack is fixedly connected with a sliding block, the upper wall of the fixed shell is provided with a sliding groove, and the sliding block is positioned in the sliding groove.

Preferably, the cross sections of the sliding block and the sliding groove are both inverted T-shaped structures, and the side wall of the sliding block is in contact with the inner wall of the sliding groove.

Preferably, the fixed shell upper wall is provided with a protractor, the valve rod side wall is fixedly connected with a pointer, and the pointer is parallel to the protractor upper wall.

Preferably, the material of sealing washer is polytetrafluoroethylene system, sealing washer lateral wall and the contact of valve body inner wall.

Preferably, the valve rod penetrates through the upper wall of the fixed shell, the penetrating position of the valve rod and the valve body is sealed, and the cross section of the fixed shell is of an inverted U-shaped structure.

Preferably, the valve body, the valve rod, the valve plate and the fixing strip are all made of austenitic low-temperature steel.

The utility model discloses possess following beneficial effect:

1. the utility model has the advantages that the telescopic end of the electric telescopic rod extends or contracts, the electric telescopic rod drives the rack to move, the rack drives the gear to rotate, the gear drives the valve rod to rotate, the valve rod drives the fixed strip to rotate, and the fixed strip drives the valve plate to rotate, so that the valve can be opened and closed, the operation is simple, and the use by people is convenient;

2. the utility model discloses a valve rod drives the pointer and rotates, and the user adjusts the fluid flow in the valve body through observing the turned angle of pointer on the protractor, and the accuracy is higher, has guaranteed the work efficiency of hydrogen liquefaction;

3. the utility model discloses a set up polytetrafluoroethylene system and austenite low temperature steel valve body, valve rod, valve plate and fixed strip, can guarantee the leakproofness of the device under 20K low temperature condition for the valve can normally work under 20K low temperature condition, has enlarged the device's application scope.

Drawings

Fig. 1 is a schematic structural diagram of a cryogenic valve for a hydrogen liquefaction process according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is an enlarged view of a structure at a low temperature valve B for a hydrogen liquefaction process according to the present invention.

In the figure: the valve comprises a valve body 1, a fixing shell 2, a fixing strip 3, a valve plate 4, a sealing ring 5, a valve rod 6, a protractor 7, a pointer 8, a gear 9, a fixing plate 10, a rack 11, an electric telescopic rod 12, a sliding block 13 and a sliding chute 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a low temperature valve for hydrogen liquefaction process, including valve body 1, valve body 1 upper wall rotates and is connected with valve rod 6, valve rod 6 runs through set casing 2 upper wall, valve rod 6 is sealed with valve body 1 department of running through, prevent the medium leakage in the valve body 1, the cross-section of set casing 2 is the U type structure of invering, valve rod 6 lateral wall fixedly connected with

fixed strip

3, 3 lateral wall fixedly connected with valve plates 4 of fixed strip, 4 lateral walls fixedly connected with sealing washer 5 of valve plate, the material of sealing washer 5 is polytetrafluoroethylene system, have splendid low temperature resistance, can work under 20K's environment, the sealed effect of the device has been guaranteed, 5 lateral walls of sealing washer contact with 1 inner wall of valve body, prevent that the medium in the valve body 1 from passing through.

Be equipped with on the valve body 1 and be used for driving the pivoted actuating mechanism of valve plate 4, actuating mechanism includes fixed casing 2 of fixed connection at the valve body 1 lateral wall, and the upper wall of fixed casing 2 is equipped with

protractor

7, and 6 lateral walls fixedly connected with pointers 8 of valve rod, and pointers 8 are parallel with the upper wall of protractor 7, can observe the turned angle of pointers 8 on protractor 7, adjust the fluid flow in the valve body 1, and the degree of accuracy is higher.

2 upper wall fixedly connected with fixed plates 10 of set casing, 10 lateral wall fixedly connected with electric telescopic handle 12 of fixed plate, the flexible end fixedly connected with rack 11 of electric

telescopic handle

12, 11 lower wall fixedly connected with sliders 13 of rack, 2 upper walls of set casing are equipped with spout 14, slider 13 is located spout 14, slider 13 is the T type structure of invering with the cross-section of spout 14, slider 13 lateral wall and 14 inner wall contacts of spout, prevent that slider 13 from rocking, stability when having guaranteed

slider

13 and 11 removal of rack, and then guaranteed the stability of actuating mechanism during operation, 6 lateral wall fixedly connected with gears 9 of valve rod,

gears

9 and 11 meshing of rack.

When valve plate 4 need be opened, only need start electric telescopic handle 12, make electric telescopic handle 12's flexible end extend, electric telescopic handle 12 drives rack 11 and removes, rack 11 drives gear 9 and rotates, gear 9 drives valve rod 6 and rotates, valve rod 6 drives fixed strip 3 and rotates, fixed strip 3 drives valve plate 4 and rotates, valve rod 6 drives pointer 8 and rotates, when pointer 8 rotates 90, can open valve body 1 completely, then close electric telescopic handle 12.

When the velocity of flow of the fluid in the valve body 1 needs to be adjusted, only need start electric telescopic handle 12, make the flexible end shrink of electric telescopic handle 12, electric telescopic handle 12 drives rack 11 and removes, rack 11 drives gear 9 and rotates, gear 9 drives valve rod 6 and rotates, valve rod 6 drives fixed strip 3 and rotates, fixed strip 3 drives valve plate 4 and rotates, valve rod 6 drives pointer 8 and rotates, can observe the turned angle of pointer 8 on protractor 7, come the fluid flow in the adjusting valve body 1, valve rod 6, valve plate 4 and fixed strip 3 are austenite low temperature steel, can work under the 20K environment, the normal work of valve at low temperature has been guaranteed.

When valve plate 4 need be closed, only need start electric telescopic handle 12 for electric telescopic handle 12's flexible end shrink, electric telescopic handle 12 drives rack 11 and removes, rack 11 drives gear 9 reversal, gear 9 drives valve rod 6 and rotates, valve rod 6 drives fixed strip 3 and rotates, fixed strip 3 drives valve plate 4 and rotates, valve rod 6 drives pointer 8 and rotates, after pointer 8 rotates initial position, close electric telescopic handle 12, can close valve body 1.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The low-temperature valve for the hydrogen liquefaction process comprises a valve body (1) and is characterized in that a valve rod (6) is connected to the upper wall of the valve body (1) in a rotating mode, a fixing strip (3) is fixedly connected to the side wall of the valve rod (6), a valve plate (4) is fixedly connected to the side wall of the fixing strip (3), a sealing ring (5) is fixedly connected to the side wall of the valve plate (4), a driving mechanism used for driving the valve plate (4) to rotate is arranged on the valve body (1), the driving mechanism comprises a fixing shell (2) fixedly connected to the side wall of the valve body (1), a fixing plate (10) is fixedly connected to the upper wall of the fixing shell (2), an electric telescopic rod (12) is fixedly connected to the side wall of the fixing plate (10), a rack (11) is fixedly connected to the telescopic end of the electric telescopic rod (12), and a gear (9) is fixedly connected to the side wall of the valve rod (6), the gear (9) is meshed with the rack (11).

2. The cryogenic valve for the hydrogen liquefaction process according to claim 1, characterized in that a sliding block (13) is fixedly connected to the lower wall of the rack (11), a sliding groove (14) is formed in the upper wall of the fixed shell (2), and the sliding block (13) is located in the sliding groove (14).

3. The cryogenic valve for a hydrogen liquefaction process according to claim 2, characterized in that the cross sections of the sliding block (13) and the chute (14) are inverted T-shaped structures, and the side wall of the sliding block (13) is in contact with the inner wall of the chute (14).

4. The cryogenic valve for a hydrogen liquefaction process according to claim 2, characterized in that the upper wall of the fixed shell (2) is provided with a protractor (7), the side wall of the valve stem (6) is fixedly connected with a pointer (8), and the pointer (8) is parallel to the upper wall of the protractor (7).

5. The cryogenic valve for a hydrogen liquefaction process according to claim 1, characterized in that the material of the sealing ring (5) is polytetrafluoroethylene, and the side wall of the sealing ring (5) is in contact with the inner wall of the valve body (1).

6. The cryogenic valve for the hydrogen liquefaction process according to claim 2, characterized in that the valve rod (6) penetrates through the upper wall of the fixed shell (2), the penetrating part of the valve rod (6) and the valve body (1) is sealed, and the cross section of the fixed shell (2) is of an inverted U-shaped structure.

7. The cryogenic valve for a hydrogen liquefaction process according to claim 2, characterized in that the valve body (1), the valve stem (6), the valve plate (4) and the fixing strip (3) are all made of austenitic low temperature steel.