WO2022205566A1

WO2022205566A1 - Pressure vessel conduit fixing structure

Info

Publication number: WO2022205566A1
Application number: PCT/CN2021/092967
Authority: WO
Inventors: 李旦鸿; 张风娟; 李晗; 李玮奇
Original assignee: 浙江金象科技有限公司
Priority date: 2021-03-31
Filing date: 2021-05-11
Publication date: 2022-10-06
Also published as: CN113086439B; CN113086439A

Abstract

A pressure vessel conduit fixing structure, comprising a conduit (200) provided in a pressure vessel (100); the upper end of the conduit (200) is connected and fixed to the upper end of the pressure vessel (100); a positioning member is provided at the lower portion of an inner cavity of the pressure vessel (100); the positioning member comprises two side portions (4) provided opposite to each other in a left-right direction; a receiving slot (10) opening upwards for receiving the lower end of the conduit (200) is constituted between the two side portions (4); a positioning slot (20) used for limiting the radial movement of the lower end of the conduit (200) and communicated with the receiving slot (10) is formed on a side wall, close to the receiving slot (10), of at least one side portion (4). The lower end of the conduit (200) of the pressure vessel conduit fixing structure is clamped and positioned by means of the positioning member made of an elastic material, such that the shaking of the lower end of the conduit (200) can be limited, the positioning of the conduit (200) in the height direction can be implemented, and the shaking amplitude of the conduit (200) can be reduced to prevent the upper end of the conduit (200) from being separated from the pressure vessel (100), thereby prolonging the service life of the conduit (200).

Description

Pressure vessel conduit fixing structure

technical field

The invention relates to a pressure vessel, in particular to a pipe fixing structure of a pressure vessel.

Background technique

For the pressure vessel in which the filling medium coexists with gas and liquid phases, the structure of the pressure vessel is generally provided with a liquid phase conduit from top to bottom. When the pressure vessel is upright, open the valve on the pressure vessel, and the liquid in the pressure vessel will Under the action of internal pressure, it will be pressed out along the liquid phase conduit; wherein, the upper end of the liquid phase conduit is fixed with the valve body by bonding or screwing. Due to the long liquid phase conduit, when the pressure vessel is moved or used, the liquid phase conduit will keep shaking, the fixing effect of the upper end of the conduit will be deteriorated, and the conduit will fall off after long-term use.

The Chinese utility model with the application number of 202021022322.3 discloses a support structure for a gas cylinder conduit. The bottom of the inner cavity of the gas cylinder is provided with a fixing sleeve, the fixing sleeve is upwardly open and has an accommodating groove for accommodating the lower end of the conduit, and the conduit deviates from the lower end and is fixed There is an upper limit block, a support spring is fixed in the accommodating groove, the lower end of the guide pipe extends into the accommodating groove and the support spring is sleeved outside the lower end of the guide pipe, and the support spring is restricted below the upper limit block. In this solution, the lower limit block is supported by the support spring, and the lower end of the guide tube extends into the support spring to limit the radial shaking of the support spring.

Since only the lower end of the support spring is fixed to the pressure vessel, the upper end of the support spring may shake; in order to avoid the shaking of the support spring, the lower limit block can only be pressed against the support spring, but due to processing errors, it is difficult to ensure that the lower limit block is pressed tightly on the support spring. on the support spring. The catheter of this solution still shakes slightly during use, and there will be friction between the lower limit block and the upper end of the support spring, and debris will be generated between the lower limit block and the support spring.

technical problem

The purpose of the present invention is to provide a pipe fixing structure of a pressure vessel which can limit the shaking of the lower end of the pipe.

technical solutions

In order to achieve the above object, the present invention adopts the following technical scheme: a pressure vessel conduit fixing structure, comprising a conduit arranged in the pressure vessel, the upper end of the conduit is connected and fixed with the upper end of the pressure vessel, and the lower part of the inner cavity of the pressure vessel is provided with a conduit. A positioning member, the positioning member includes two sides arranged opposite to the left and right, and an abdication groove for giving way to the lower end of the catheter is formed between the two sides, and an upward opening is formed on the side wall of at least one side adjacent to the ablution groove And a positioning groove for restricting the radial movement of the lower end of the conduit, the positioning groove is communicated with the abdication groove.

The positioning member and the inner wall of the pressure vessel are fixed first, and then the lower end of the conduit is assembled and positioned. When assembling the lower end of the catheter, move the catheter from top to bottom, so that the lower end of the catheter extends into the abdication groove, and the catheter is located in the positioning groove. The back and forth movement of the catheter can realize the radial limit of the catheter, so as to avoid the lower end of the catheter from shaking when pushed by the medium. Wherein, the conduit and the wall of the positioning groove may be in clearance fit, or the conduit may be in a tight fit against the wall of the positioning slot.

Preferably, the positioning groove is in the form of an arc-shaped groove structure opening to the side of the escaping groove; the positioning grooves are provided on both sides. The groove surface of the positioning groove is an arc surface, and the outer wall of the guide tube is an arc surface. The above arrangement increases the contact area between the guide tube and the groove wall of the positioning groove, so as to further limit the radial movement of the guide tube.

Preferably, the abdication grooves penetrating front and rear are formed between the two side parts. By arranging positioning grooves on both side parts, the contact area between the outer wall of the catheter and the side parts is further increased, so as to further limit the radial movement of the catheter. By arranging an escape groove running through the front and rear, it is convenient for the liquid-phase medium to move in the pressure vessel, so that the liquid-phase medium can enter the conduit through the inlet at the lower end of the conduit.

Preferably, the side portion is made of elastic material. Among them, the side part has elasticity. When the catheter goes down into the escape groove, as long as the width between the positioning grooves on both sides is smaller than the width of the catheter, the distance between the side parts will be stretched, so that the catheter is clamped Between the two sides, the lower end of the catheter is tightly fitted, so as to realize the positioning and fixing of the height direction of the catheter. At the same time, when the catheter is stressed, the force will be transmitted to the positioning member, and the positioning member itself has a certain elastic ability to ease the stress on the catheter, so as to reduce the shaking amplitude of the deviation end of the catheter. Wherein, the positioning member can be made of materials such as steel.

Preferably, the offset end of the side portion has a clamping section for clamping the positioning catheter, the side portion further includes an upper section located on the upper side of the clamping section, the upper section is inclined along the up-down direction, and the two sides are The distance between the upper and lower sections gradually decreases from top to bottom. By setting the upper section, the downward movement of the catheter is guided, so that the lower end of the catheter can be inserted into the positioning groove. At the same time, the arrangement of the upper section can also prevent the conduit from colliding with the upper end face of the side portion during assembly.

Preferably, the positioning groove extends upward along the side portion and penetrates the upper end surface of the side portion. The above arrangement facilitates the processing and manufacture of the positioning groove, and at the same time facilitates the movement and guidance of the catheter.

Preferably, a clamping section for clamping the positioning catheter is provided at the offset end of the side portion, and the side portion further includes a lower section located on the lower side of the clamping section, the lower section is inclined in the up-down direction, and has two sides on both sides. The distance between the lower sections gradually increases from top to bottom. Since the lower part of the side part is set obliquely, when the catheter passes through the clamping part, the contact surface between the catheter and the lower part is small or not, which can reduce the resistance when the catheter is assembled, and at the same time, the lower part of the side part can be better stretched deformed.

Preferably, the positioning member further includes a bottom for fixing to the pressure vessel, and opposite ends of the bottom are respectively connected with the lower end of one side. The above arrangement makes the welding and fixing of the positioning member and the pressure vessel more convenient. And in the case that the side parts are provided with the let-away grooves, the alignment between the two let-away grooves can be better ensured, and the positioning and fixation of the catheter can be better ensured, so as to avoid the deviation caused by the position deviation between the two sides. The catheter positioning and fixation effect becomes poor.

Preferably, the lower end of the side portion is smoothly connected with the bottom edge to form an arc-shaped structure. The above arrangement facilitates the deformation when the side portion is stretched by the guide tube, and can make the assembly of the guide tube and the positioning member more convenient.

Preferably, the lower end surface of the bottom is in contact with the inner wall of the pressure vessel; the deviating side of the bottom is provided with a fixing portion extending to the outer side in the circumferential direction, and the fixing portion is fixed with the inner wall of the pressure vessel. The above arrangement increases the contact area between the positioning member and the bottom of the inner cavity of the pressure vessel, and facilitates the welding and fixing of the positioning member and the pressure vessel.

beneficial effect

The lower end of the catheter of the present invention is clamped and positioned by the positioning member made of elastic material, which can limit the shaking of the lower end of the catheter, and at the same time, can realize the positioning of the height direction of the catheter, and can reduce the shaking amplitude of the catheter, so as to prevent the upper end of the catheter from being separated from the pressure vessel, so as to prevent the upper end of the catheter from being separated from the pressure vessel. The service life of the conduit is prolonged; the positioning member of the present invention has a simple structure, and does not require other components to limit the shaking of the conduit, and only needs to be welded between the positioning member and the pressure vessel, and the production cost is lower.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is a kind of structural schematic diagram of the positioning member of the present invention;

3 is a cross-sectional view of the positioning member of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be further described below according to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 3 , the present invention discloses a pressure vessel conduit fixing structure, including a conduit 200 arranged in the pressure vessel 100, the upper end of the conduit 200 is connected and fixed with the upper end of the pressure vessel 100, and the lower part of the inner cavity of the pressure vessel 100 is fixed. There is a positioning piece, the positioning piece includes a bottom 3 and two side parts 4 located on the upper side of the bottom 3, the left and right edges of the bottom 3 are respectively smoothly connected with the lower end of the side part 4 and form an arc structure, and the upper ends of the two sides 4 are not connected to each other, The two side parts 4 are arranged symmetrically on the left and right, and the two side parts 4 are formed with a relinquishment groove 10 for giving way to the lower end of the catheter 200 and passing through the positioning member forward and backward. In the positioning groove 20 that restricts the radial movement of the lower end of the conduit 200 and opens upward, the positioning groove 20 is communicated with the escape groove 10 .

Wherein the bottom 3 is deviated from the side 4 with a fixing portion 5 extending forward and rearward. The fixing portion 5 is used for welding and fixing with the inner wall of the pressure vessel 100. The bottom 3, the side 4 and the fixing portion 5 are integrally formed and formed by Made of elastic metal material. Wherein, the positioning groove 20 has an arc-shaped groove structure opening to the side 10 of the escaping groove. The conduit 200 is located on the upper side of the bottom 3 , the conduit 200 is formed with an inlet 201 penetrating downward, and the lower end surface of the conduit 200 is inclined. The shapes of the bottom 3 and the fixed part 5 are designed according to the shape of the cavity bottom of the pressure vessel 100. When the cavity bottom of the pressure vessel 100 is an arc surface, the bottom 3 and the fixed part 5 are bent to make the lower end surface of the bottom 3 more flexible. It is in good contact with the inner wall of the pressure vessel 100; when the pressure vessel is in a lying state, a part of the bottom 3 or the fixing part 5 arranged along the width direction of the pressure vessel 100 is bent, and the bottom 3 or The other part in the fixing part 5 may be provided in a straight plate shape.

The side part 4 has a clamping section 41 at the offset end for clamping the positioning catheter. The side part 4 also includes an upper section 42 located on the upper side of the clamping section 41 and a lower section 43 located on the lower side of the clamping section 41. The vertical direction is inclined, and the distance between the upper sections 42 of the two sides 4 gradually decreases from top to bottom, the lower section 43 is inclined along the vertical direction, and the distance between the lower sections 43 of the two sides 4 gradually increases from top to bottom. The positioning groove 20 extends upward along the side portion 4 and penetrates the upper end surface of the side portion 4 .

The lower end of the catheter of the present invention is clamped and positioned by the positioning member made of elastic material, which can limit the shaking of the lower end of the catheter, and at the same time can realize the positioning in the height direction of the catheter, and can reduce the shaking amplitude of the catheter, so as to prevent the upper end of the catheter from being separated from the pressure vessel, so as to prevent the upper end of the catheter from being separated from the pressure vessel. Extends the service life of the conduit; the positioning member of the present invention has a simple structure, and does not require other components to limit the shaking of the conduit, and only needs to be welded between the positioning member and the pressure vessel, and the production cost is lower.

Claims

A pressure vessel conduit fixing structure is characterized in that it includes a conduit arranged in the pressure vessel, the upper end of the conduit is connected and fixed with the upper end of the pressure vessel, the lower part of the inner cavity of the pressure vessel is provided with a positioning member, and the positioning member includes left and right Oppositely arranged two sides, the two sides are formed with a way-out groove for giving way to the lower end of the catheter, and at least one side of the side wall adjacent to the way-out groove is formed with an upward opening and used to restrict the radial movement of the lower end of the catheter. A positioning slot, the positioning slot communicates with the letting slot.
The pipe fixing structure for a pressure vessel according to claim 1, wherein the positioning groove is an arc-shaped groove structure that opens to the side of the escaping groove; the positioning grooves are provided on both sides.
The pipe fixing structure for a pressure vessel according to claim 1, characterized in that the abdication grooves penetrating front and rear are formed between the two side parts.
The pressure vessel conduit fixing structure according to claim 1, wherein the side portion is made of elastic material.
The pipe fixing structure for a pressure vessel according to claim 1, wherein a clamping section for clamping the positioning pipe is provided at the offset end of the side part, and the side part further comprises an upper section located on the upper side of the clamping section , the upper section is inclined along the up-down direction, and the distance between the upper sections on both sides is gradually reduced from top to bottom.
The pipe fixing structure for a pressure vessel according to claim 1 or 5, wherein the positioning groove extends upward along the side portion and penetrates through the upper end surface of the side portion.
The pipe fixing structure for a pressure vessel according to claim 1, wherein a clamping section for clamping the positioning pipe is provided at the offset end of the side part, and the side part further comprises a lower section located on the lower side of the clamping section , the lower section is inclined along the up-down direction, and the distance between the lower sections on both sides gradually increases from top to bottom.
The pipe fixing structure for a pressure vessel according to claim 1, wherein the positioning member further comprises a bottom for fixing to the pressure vessel, and opposite ends of the bottom are respectively connected to the lower end of one side.
The pipe fixing structure for a pressure vessel according to claim 8, wherein the lower end of the side portion is smoothly connected with the bottom edge and forms an arc structure.
The pipe fixing structure of a pressure vessel according to claim 8, wherein the lower end surface of the bottom is in contact with the inner wall of the pressure vessel; The end face is in contact with the bottom of the inner cavity of the pressure vessel.