Ball valve suitable for ultralow-temperature environment

Abstract

The utility model discloses a ball valve suitable for an ultra-low temperature environment, which comprises a composition mechanism, the composition mechanism comprises a valve body, a protection mechanism is sleeved on the periphery of the valve body, a locking mechanism is arranged above the protection mechanism, the protection mechanism comprises a protection sleeve, the protection sleeve is sleeved on the periphery of the valve body, and the locking mechanism is arranged above the protection sleeve. An inner pad protection layer is attached to the inner side wall of the protection sleeve, and a heat preservation layer is attached to the other side of the inner pad protection layer. According to the ball valve suitable for the ultralow-temperature environment, under the daily condition, the heating layer arranged on the periphery of the valve body in a sleeving mode can be connected with a wire harness to achieve the purpose of auxiliary heating of liquid in the valve body, the anti-freezing effect can be achieved no matter the liquid circulates or is detained, and the ball valve suitable for the ultralow-temperature environment is suitable for the ultralow-temperature environment; secondly, the heat preservation layer attached to the periphery of the heating layer can delay the heating effect, the heat preservation time is prolonged, and the inner pad protection layer and the protection sleeve on the outer side of the heat preservation layer are jointly arranged, so that the valve body, the heat preservation layer on the periphery and the heating layer on the periphery are directly protected in an all-around mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, concretely is a kind of ball valve suitable for ultra-low temperature environment. BACKGROUND

[0002] Ball valve is a kind of valve, ball valve has 90 degrees rotation action, plug body is spherical, there is circular through hole or passage through its axis, ball valve is widely used in petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmaceutical, water conservancy, electric power, municipal, steel and other industries.

[0003] As patent CN219529884U discloses a kind of ball valve, belong to valve manufacturing technical field.This ball valve includes ball valve shell, both ends of ball valve shell are fixedly installed with connecting flange, the top of ball valve shell is fixedly installed with fixed block, the inside rotation of fixed block is connected with valve stem, the upper end of valve stem is fixedly installed with handle, one end of valve stem extending to the inside of ball valve shell is fixedly installed with rotating ball, rotating ball is rotationally connected in the inside of connecting flange, the surface of valve stem is fixedly sleeved with limiting disc, limiting disc is rotationally connected in the inside of fixed block.

[0004] The ball valve described above in use, when there is no ball valve internal water source protection under ultra-low temperature environment, when outdoor temperature is lower, in the case where valve body is not flow, the static liquid in the inside of one side of valve body is easy to freeze with the inner wall of valve body, for this, we propose a kind of ball valve suitable for ultra-low temperature environment. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of ball valve suitable for ultra-low temperature environment, to solve the problem that when there is no ball valve internal water source protection under ultra-low temperature environment, when outdoor temperature is lower, in the case where valve body is not flow, the static liquid in the inside of one side of valve body is easy to freeze with the inner wall of valve body in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of ball valve suitable for ultra-low temperature environment, including component mechanism, the component mechanism includes valve body, and the periphery of valve body is equipped with protection mechanism, the upper portion of protection mechanism is installed with locking mechanism, the protection mechanism includes protective sleeve, and protective sleeve is equipped in the periphery of valve body, the inner side wall of protective sleeve is attached with inner pad protective layer, and the other side of inner pad protective layer is attached with heat preservation layer, the inner side of heat preservation layer is fixed with heating layer.

[0007] Preferably, the protective sleeve is equipped in the periphery of valve body, and the middle part of protective sleeve and valve body is provided with inner pad protective layer, heat preservation layer and heating layer.

[0008] Preferably, the inner pad protective layer, heat preservation layer and heating layer are connected in adjacent adhesion type.

[0009] Preferably, the composition mechanism comprises a valve body, and connecting sleeves are fixed at both ends of the valve body, valve cores are arranged at both sides of the middle part of the valve body, valve rods are movably arranged in the middle part of the valve cores, a hand rod is fixed to one side of the upper part of the valve rods, and a ball is fixed to the periphery of one side of the middle part of the valve rods.

[0010] Preferably, the locking mechanism comprises an upper fixing frame, the upper fixing frame is fixed to one side of the upper part of the protective sleeve, a forward and reverse screw rod is arranged on one side of the inner part of the upper fixing frame, a torsion block is connected to one end of the forward and reverse screw rod, screw sleeves are arranged on the periphery of both sides of the middle part of the forward and reverse screw rod, guide blocks are fixed to one side of the screw sleeves, guide grooves are arranged on the inner side of the upper fixing frame and used for the movement of the guide blocks, connecting blocks are fixed to the other side of the screw sleeves, locking rods are fixed to one side of the inner side of the connecting blocks, and the composition mechanism comprises valve rods, and lock grooves are arranged on both sides of the upper part of the valve rods and used for the insertion of the two locking rods.

[0011] Preferably, the connecting blocks are symmetrically distributed along the vertical central axis of the upper fixing frame, and the inner side of the connecting blocks is fixedly connected with the locking rods.

[0012] Preferably, the size of the end part of the locking rod matches the size of the front part of the lock grooves arranged on both sides of the upper part of the valve rod.

[0013] Compared with the prior art, the ball valve suitable for an ultralow-temperature environment has the following beneficial effects: under daily conditions, the heating layer sleeved around the valve body can be connected with a wire harness to achieve the purpose of auxiliary heating of the liquid in the valve body, and the heating layer can play a freeze-proof effect under the conditions of liquid flow or stagnation, and is suitable for an ultralow-temperature environment; in addition, the heat preservation layer attached around the heating layer can play a time-delay effect on the heating effect, improve the heat retention time, and the combined arrangement of the inner pad protective layer on the outer side and the protective sleeve directly protects the valve body and the surrounding heat preservation layer and heating layer in all directions.

[0014] When the valve rod is not used by personnel on a daily basis, the valve rod and the ball can be used to close the space in the valve body by rotating the hand rod at the last use, and then the forward and reverse screw rod is rotated by hand twisting the torsion block; in this state, the screw sleeves acting on the screw rods can cooperate with the guide blocks and the guide grooves to make the two opposite locking rods be inserted into the lock grooves arranged on both sides of the upper part of the valve rod, so as to achieve the purpose of locking and fixing the angle of the valve rod, and prevent the ball from being opened due to the mistaken touch of the valve rod, thereby reducing the waste of water resources. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is an internal structure schematic diagram of the protection mechanism of the utility model;

[0017] Figure 3 For the utility model Figure 1 Structure schematic diagram of A in the middle;

[0018] Figure 4 For the utility model locking mechanism structure schematic diagram.

[0019] In the figure: 1, the mechanism is composed of; 11, valve body; 12, connecting sleeve end; 13, valve core; 14, valve rod; 15, handheld rod; 16, ball; 2, protection mechanism; 21, protective sleeve; 22, inner pad protective layer; 23, heat preservation layer; 24, heating layer; 3, locking mechanism; 31, upper fixed frame; 32, positive and negative screw rod; 33, torsion block; 34, screw rod sliding sleeve; 35, guide block; 36, guide groove; 37, connecting block; 38, lock rod; 39, lock groove. Specific embodiments

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4The utility model provides a kind of technical scheme: a ball valve suitable for ultralow temperature environment, including component mechanism 1, component mechanism 1 includes valve body 11, and the periphery of valve body 11 is equipped with protection mechanism 2, locking mechanism 3 is installed in the top of protection mechanism 2, component mechanism 1 includes valve body 11, and the both ends of valve body 11 are connected and fixed with connecting sleeve end 12, the middle part both sides of valve body 11 are equipped with valve core 13, and the middle part of valve core 13 is movable with valve stem 14, the upper side of valve stem 14 is fixed with handheld rod 15, and the middle part side periphery of valve stem 14 is fixed with sphere 16, protection mechanism 2 includes protective sleeve 21, and protective sleeve 21 is equipped with valve body 11 periphery, the inner side wall of protective sleeve 21 is attached with inner pad protective layer 22, and the other side of inner pad protective layer 22 is attached with heat preservation layer 23, the inner side of heat preservation layer 23 is fixed with heating layer 24, protective sleeve 21 is equipped with the periphery of valve body 11, and protective sleeve 21 and the middle part of valve body 11 are equipped with inner pad protective layer 22, heat preservation layer 23, heating layer 24, inner pad protective layer 22, heat preservation layer 23 and heating layer 24 are connected in adjacent between adhesion type, under routine condition, heating layer 24 can be connected wire harness to reach the purpose of auxiliary heating to its internal liquid in the periphery of valve body 11, whether in liquid circulation or stagnation condition can play antifreezing effect, applicable to ultralow temperature environment, secondly, heat preservation layer 23 can play time-delay effect to heating effect in the periphery of heating layer 24, improve heat retention time, and the joint setting of inner pad protective layer 22 and protective sleeve 21 in its outside, it is all-around direct protection to valve body 11 and periphery heat preservation layer 23, heating layer 24.

[0022] The locking mechanism 3 comprises an upper fixing frame 31 fixed to the upper side of the protective sleeve 21, a forward and reverse screw rod 32 mounted on the inner side of the upper fixing frame 31, a torsion block 33 connected to one end of the forward and reverse screw rod 32, screw sleeves 34 provided on the two sides of the middle part of the forward and reverse screw rod 32, guide blocks 35 fixed to one side of the screw sleeves 34, guide grooves 36 provided on the inner side of the upper fixing frame 31 for the movement of the guide blocks 35, connecting blocks 37 fixed to the other side of the screw sleeves 34, and lock rods 38 fixed to the inner side of one edge of the connecting blocks 37. The connecting blocks 37 are symmetrically distributed along the vertical central axis of the upper fixing frame 31, and the inner side of one edge of the connecting blocks 37 is fixedly connected with the lock rods 38. The mechanism 1 comprises a valve rod 14, and lock grooves 39 are provided on the two sides of the upper side of the valve rod 14 for the insertion of the two lock rods 38. The end size of the lock rods 38 matches the size before the lock grooves 39 provided on the two sides of the upper part of the valve rod 14. When the valve rod 14 is not used daily, the valve rod 14 and the ball 16 can be closed to the space in the valve body 11 by rotating the hand-held rod 15 during the last use, and then the forward and reverse screw rod 32 is rotated by hand-tightening the torsion block 33. In this state, the screw sleeves 34 acting on the screw rods can cooperate with the guide blocks 35 and the guide grooves 36 to make the two opposite lock rods 38 be clamped into the lock grooves 39 provided on the two sides of the upper part of the valve rod 14, so as to achieve the purpose of angle locking and fixing of the valve rod 14, preventing the ball 16 from being opened due to the accidental touch of the valve rod 14, and reducing the waste of water resources.

[0023] Working principle: For this kind of ball valve suitable for ultra-low temperature environment, firstly, under normal circumstances, the heating layer 24 sleeved around the valve body 11 can be connected with a wire harness to achieve the purpose of auxiliary heating of the liquid inside, which can prevent freezing whether the liquid is flowing or stagnant, and is suitable for ultra-low temperature environment. Secondly, the heat preservation layer 23 attached around the heating layer 24 can delay the heating effect and improve the heat retention time. The combined setting of the inner pad layer 22 outside and the protective sleeve 21 directly protects the valve body 11 and the surrounding heat preservation layer 23 and heating layer 24 in all directions. Finally, when the valve rod 14 is not used daily, the valve rod 14 and the ball 16 can be closed to the space in the valve body 11 by rotating the hand-held rod 15 during the last use, and then the forward and reverse screw rod 32 is rotated by hand-tightening the torsion block 33. In this state, the screw sleeves 34 acting on the screw rods can cooperate with the guide blocks 35 and the guide grooves 36 to make the two opposite lock rods 38 be clamped into the lock grooves 39 provided on the two sides of the upper part of the valve rod 14, so as to achieve the purpose of angle locking and fixing of the valve rod 14, preventing the ball 16 from being opened due to the accidental touch of the valve rod 14, and reducing the waste of water resources.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ball valve suitable for ultra-low temperature environments, comprising a mechanism (1) characterized in that: The composition mechanism (1) includes a valve body (11), and the periphery of the valve body (11) is sleeved with a protection mechanism (2), the upper side of the protection mechanism (2) is provided with a locking mechanism (3), the protection mechanism (2) includes a protective sleeve (21), and the protective sleeve (21) is sleeved on the periphery of the valve body (11), the inner side wall of the protective sleeve (21) is attached with an inner pad protective layer (22), and the other side of the inner pad protective layer (22) is attached with a heat preservation layer (23), and the inner side of the heat preservation layer (23) is fixedly provided with a heating layer (24).

2. A ball valve suitable for use in ultra-low temperature environments according to claim 1, characterized in that: The protective sleeve (21) is sleeved on the periphery of the valve body (11), and the protective sleeve (21) and the middle part of the valve body (11) are provided with the inner pad protective layer (22), the heat preservation layer (23) and the heating layer (24).

3. A ball valve suitable for use in ultra-low temperature environments according to claim 1, characterized in that: The inner pad protective layer (22), the heat preservation layer (23) and the heating layer (24) are connected in an attached manner.

4. The ball valve suitable for ultra-low temperature environment according to claim 1, characterized in that: The composition mechanism (1) includes a valve body (11), and the two ends of the valve body (11) are connected and fixedly provided with a connecting sleeve end (12), the middle part of the valve body (11) is provided with a valve core (13) on both sides, and the middle part of the valve core (13) is movably provided with a valve rod (14), the upper side of the valve rod (14) is fixedly provided with a hand rod (15), and the middle part of the valve rod (14) is fixedly provided with a spherical body (16) on the periphery.

5. The ball valve suitable for ultra-low temperature environment according to claim 1, characterized in that: The locking mechanism (3) includes an upper fixed frame (31), and the upper fixed frame (31) is fixed to the upper side of the protective sleeve (21), the inner side of the upper fixed frame (31) is provided with a forward and reverse screw rod (32), one end of the forward and reverse screw rod (32) is connected with a torsion block (33), the middle part of the forward and reverse screw rod (32) is peripherally and screwingly provided with a screw rod sliding sleeve (34), one side of the screw rod sliding sleeve (34) is fixedly provided with a guide block (35), the inner side of the upper fixed frame (31) is provided with a guide groove (36) for the movement of the guide block (35), the other side of the screw rod sliding sleeve (34) is fixedly provided with a connecting block (37), and the inner side of the connecting block (37) is fixedly provided with a locking rod (38), the composition mechanism (1) includes a valve rod (14), and the upper side of the valve rod (14) is provided with a locking groove (39) for the insertion of two locking rods (38) on both sides.

6. A ball valve suitable for use in a cryogenic environment according to claim 5, characterised in that: The connecting block (37) is symmetrically distributed along the vertical central axis of the upper fixed frame (31), and the inner side of the connecting block (37) is fixedly connected with the locking rod (38).

7. A ball valve suitable for use in a cryogenic environment according to claim 5, wherein: The size of the end of the locking rod (38) matches the size of the locking groove (39) provided on the upper part of the valve rod (14) on both sides.

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