CN209800731U - Fixed type deep cooling pressure vessel filling limiting device - Google Patents
Fixed type deep cooling pressure vessel filling limiting device Download PDFInfo
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- CN209800731U CN209800731U CN201920698807.5U CN201920698807U CN209800731U CN 209800731 U CN209800731 U CN 209800731U CN 201920698807 U CN201920698807 U CN 201920698807U CN 209800731 U CN209800731 U CN 209800731U
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- liquid outlet
- liquid
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- filling
- sealing ball
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Abstract
The utility model discloses a fixed type deep cooling pressure vessel charge limiting device, which comprises a liquid inlet pipe, a liquid outlet pipe, a charge limiting cavity, a sealing ball and a buoyancy rotating mechanism; a liquid inlet is arranged above the charge-limiting cavity and is communicated with a liquid inlet pipe, a liquid outlet is arranged below the charge-limiting cavity and is communicated with a liquid outlet pipe; the sealing ball is arranged in the restricted filling cavity and is positioned above the liquid outlet; a rotating shaft is arranged in the liquid outlet pipe or at the liquid outlet, and a notch is formed in the side surface of the liquid outlet pipe close to one end of the charge limiting cavity; the buoyancy rotating mechanism penetrates through the notch, one end of the buoyancy rotating mechanism is arranged on the rotating shaft, and the other end of the buoyancy rotating mechanism is positioned outside the liquid outlet pipe; the buoyancy rotating mechanism can rotate along the rotating shaft in the axial direction of the liquid outlet pipe, so that the sealing ball and the buoyancy rotating mechanism form an opening and closing mechanism of the liquid outlet. The filling limiting device has the advantages of simple integral structure, convenience in installation and strong reliability, and can accurately and timely open or close the liquid outlet to prevent liquid from being over-filled.
Description
Technical Field
the utility model relates to a limit for charge technical field especially relates to a fixed cryrogenic pressure vessel limit for charge device.
background
the cryogenic liquid has the characteristics of almost no compressibility and easy vaporization, so that the phenomenon of abnormal rise of the pressure of the container is easily caused in a narrow gas phase space, particularly under the condition of overcharge, thereby influencing the safe use of the cryogenic pressure container and even causing an over-safety accident.
At present, an overflow port is arranged in the industry all the time as a charging limiting means, the diameter of the overflow port is small, the diameter of a charging pipe is large, and effective over-charging prevention operation cannot be achieved only by arranging the overflow port. Therefore, it is very important to design an effective and easy-to-install charge limiter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fixed cryrogenic pressure vessel limit for charge device has overall structure simple's characteristics.
to achieve the purpose, the utility model adopts the following technical proposal:
a fixed type deep cooling pressure container charge limiting device comprises a liquid inlet pipe, a liquid outlet pipe, a charge limiting cavity, a sealing ball and a buoyancy rotating mechanism;
A liquid inlet is arranged above the charge-limiting cavity and is communicated with a liquid inlet pipe, a liquid outlet is arranged below the charge-limiting cavity and is communicated with a liquid outlet pipe;
The sealing ball is arranged in the restricted filling cavity and is positioned above the liquid outlet;
A rotating shaft is arranged in the liquid outlet pipe or at the liquid outlet, and a notch is formed in the side surface of the liquid outlet pipe close to one end of the charge limiting cavity; the buoyancy rotating mechanism penetrates through the notch, one end of the buoyancy rotating mechanism is arranged on the rotating shaft, and the other end of the buoyancy rotating mechanism is positioned outside the liquid outlet pipe;
The buoyancy rotating mechanism can rotate along the rotating shaft in the axial direction of the liquid outlet pipe, so that the sealing ball and the buoyancy rotating mechanism form an opening and closing mechanism of the liquid outlet.
Furthermore, the buoyancy rotating mechanism comprises a cam, a connecting rod and a floating ball, the cam is installed on the rotating shaft, one end of the connecting rod is fixedly connected with the cam, and the other end of the connecting rod penetrates through the notch to be connected with the floating ball.
Furthermore, the floating ball drives the connecting rod to move in the notch under the action of buoyancy;
When the connecting rod is positioned at the middle upper part and/or the middle lower part of the notch, the cam is propped against the sealing ball to ensure that a gap is reserved between the sealing ball and the liquid outlet;
When the connecting rod is positioned at the upper part or the top of the notch, the cam is separated from the sealing ball, and the sealing ball is propped against the liquid outlet.
further, the axial section of the cam along the rotating shaft is triangular or quadrangular.
furthermore, the vertical distance between the highest point of the cam and the central line of the rotating shaft is H, and the vertical distance between the central line of the rotating shaft and the liquid outlet is H; when the cam is abutted against the sealing ball to ensure that a gap is reserved between the sealing ball and the liquid outlet, H is more than H; when the cam is separated from the sealing ball, H is less than H.
furthermore, the charge limiting device is made of stainless steel materials.
Further, the liquid outlet is a circular through hole.
Furthermore, one end of the liquid outlet pipe, which is far away from the limited charging cavity, is blocked, and the side surface of the blocked end of the liquid outlet pipe is provided with spray holes which are densely arranged.
Furthermore, the shape of the limited charging cavity is a cube, a cuboid or a cylinder.
The utility model also provides a top filling pipeline adopting the limit filling device, which comprises a liquid filling pipe, a top liquid filling valve and the limit filling device, wherein the top liquid filling valve is arranged at one end of the liquid filling pipe and is used for controlling the opening or closing of the liquid filling pipe; the other end of the liquid filling pipe is connected with a liquid inlet pipe of the filling limiting device.
The utility model has the advantages that: a fixed type deep cooling pressure container charge limiting device comprises a liquid inlet pipe, a liquid outlet pipe, a charge limiting cavity, a sealing ball and a buoyancy rotating mechanism, wherein a liquid inlet is arranged above the charge limiting cavity and is communicated with the liquid inlet pipe, a liquid outlet is arranged below the charge limiting cavity and is communicated with the liquid outlet pipe, the sealing ball is arranged in the charge limiting cavity and is positioned above the liquid outlet, and the sealing ball can realize the opening or closing of the liquid outlet through the up-and-down movement; a rotating shaft is arranged in the liquid outlet pipe, a notch is formed in the side face, close to one end of the limited charging cavity, of the liquid outlet pipe, the buoyancy rotating mechanism penetrates through the notch, one end of the buoyancy rotating mechanism is installed on the rotating shaft, the other end of the buoyancy rotating mechanism is located outside the liquid outlet pipe, and the buoyancy rotating mechanism can rotate along the rotating shaft in the axial direction of the liquid outlet pipe. The charging-limiting device has the advantages of simple integral structure, convenient installation and strong reliability, and realizes the jacking and falling of the sealing ball through the self weight of the buoyancy rotating mechanism and the sealing ball and the pressure difference of liquid, thereby accurately and timely opening or closing the liquid outlet and preventing the liquid from being overcharged. Meanwhile, the volume of the limit device is small, redundant space does not need to be reserved in the container during installation, and the control of the highest liquid levels of different containers can be realized by adjusting the height of the limit device.
Drawings
Fig. 1 is a schematic view of an embodiment of the present invention with the liquid outlet of the filling limiting device open;
FIG. 2 is a schematic view of the liquid outlet of the restriction device of FIG. 1 closed;
Fig. 3 is a schematic view of a charging-limiting device according to an embodiment of the present invention applied to a charging line;
Fig. 4 is a schematic view from another angle of application of the filling restriction device of fig. 3 to a filling line.
the liquid filling device comprises a liquid inlet pipe 1, a liquid outlet pipe 2, a limited filling cavity 3, a sealing ball 4, a buoyancy rotating mechanism 5, a liquid inlet 6, a liquid outlet 7, a rotating shaft 8, a notch 9, a spraying hole 10, a cam 51, a connecting rod 52, a floating ball 53, a liquid filling pipe 11, a top liquid filling valve 12 and a limited filling device 13.
Detailed Description
the technical solution of the present invention will be further explained with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-2, the utility model relates to a fixed cryogenic pressure vessel charge-limiting device, which comprises a liquid inlet pipe 1, a liquid outlet pipe 2, a charge-limiting cavity 3, a sealing ball 4 and a buoyancy rotating mechanism 5;
A liquid inlet 6 is arranged above the charge-limiting cavity 3, the liquid inlet 6 is communicated with the liquid inlet pipe 1, a liquid outlet 7 is arranged below the charge-limiting cavity 3, and the liquid outlet 7 is communicated with the liquid outlet pipe 2;
The sealing ball 4 is arranged in the restricted filling cavity 3 and is positioned above the liquid outlet 7;
a rotating shaft 8 is arranged in the liquid outlet pipe 2 or at the position of the liquid outlet 7, and a notch 9 is formed in the side surface of the liquid outlet pipe 2 close to one end of the limited charging cavity 3; the buoyancy rotating mechanism 5 passes through the notch 9, one end of the buoyancy rotating mechanism is arranged on the rotating shaft 8, and the other end of the buoyancy rotating mechanism is positioned outside the liquid outlet pipe 2;
The buoyancy rotating mechanism 5 can rotate along the rotating shaft 8 in the axial direction of the liquid outlet pipe 2, so that the sealing ball 4 and the buoyancy rotating mechanism 5 form an opening and closing mechanism of the liquid outlet 7.
The utility model provides a fixed cryrogenic pressure vessel limit for charge device, including feed liquor pipe 1, drain pipe 2, limit for charge cavity 3, ball sealer 4 and buoyancy slewing mechanism 5, be provided with inlet 6 above limit for charge cavity 3, inlet 6 communicates feed liquor pipe 1, is provided with liquid outlet 7 below limit for charge cavity 3, liquid outlet 7 communicates drain pipe 2, ball sealer 4 sets up in limit for charge cavity 3, and is located above liquid outlet 7, ball sealer 4 can realize opening or closing of liquid outlet 7 through the activity from top to bottom; in drain pipe 2 or liquid outlet 7 department is provided with axis of rotation 8, and notch 9 has been seted up to the side that drain pipe 2 is close to limit for charge cavity 3 one end, and buoyancy slewing mechanism 5 passes notch 9, and one end is installed on axis of rotation 8, and the other end is located outside drain pipe 2, and buoyancy slewing mechanism 5 can rotate on 2 axial directions of drain pipe along axis of rotation 8.
When the charge limiting device is used, one end of the buoyancy rotating mechanism 5, which is positioned outside the liquid outlet pipe 2, sinks due to gravity at the beginning, one end of the buoyancy rotating mechanism 5, which is positioned inside the liquid outlet pipe 2, jacks up the sealing ball 4 inside the charge limiting cavity 3, low-temperature liquid enters from the liquid inlet pipe 1, flows through the liquid inlet 6 of the charge limiting cavity and then flows into the liquid outlet pipe 2 through the liquid outlet 7, and the charge of the low-temperature liquid is normally carried out; when the liquid level reaches the buoyancy rotating mechanism 5, the buoyancy rotating mechanism 5 starts to rotate upwards under the action of buoyancy, the sealing ball 4 gradually sinks close to the liquid outlet 7 under the action of the self gravity of the sealing ball 4 and the pressure of the liquid in the limited filling cavity 3, the passage through which the low-temperature liquid flows is gradually reduced, and the filling speed of the low-temperature liquid is reduced; when the buoyancy rotating mechanism 5 reaches the highest liquid level, the sealing ball 4 completely blocks the liquid outlet 7 under the self gravity and the liquid pressure, and the filling of the low-temperature liquid is finished.
The limit filling device is simple in integral structure, convenient to install and high in reliability, and the sealing ball 4 is jacked up and falls down through the dead weight of the buoyancy rotating mechanism 5 and the sealing ball 4 and the pressure difference of liquid, so that the liquid outlet 7 can be accurately and timely opened or closed, and the liquid is prevented from being overcharged.
further, the buoyancy rotating mechanism comprises a cam 51, a connecting rod 52 and a floating ball 53, wherein the cam 51 is installed on the rotating shaft 8, one end of the connecting rod 52 is fixedly connected with the cam 51, and the other end of the connecting rod passes through the notch 9 to be connected with the floating ball 53.
the buoyancy rotating mechanism 5 comprises a cam 51, a connecting rod 52 and a floating ball 53, the cam 51 is installed on the rotating shaft 8 in the liquid outlet pipe 2, one end of the connecting rod 52 is fixedly connected with the cam 51, the other end of the connecting rod passes through the notch 9 to be connected with the floating ball 53, and the floating ball 53 is located outside the liquid outlet pipe 2. The cam 51 is used for jacking up the sealing ball 4 in the restricted filling cavity 3 and opening the liquid outlet 7. The floating ball 53 can move in the axial direction of the liquid outlet pipe 2 under the action of the self gravity and the buoyancy, so as to drive the cam 51 to rotate along the rotating shaft 8, realize the jacking and falling of the sealing ball 4, and further open or close the liquid outlet 7. The buoyancy rotating mechanism 5 is simple in structure, the cam 51 is driven to rotate under the action of the self gravity and the buoyancy of the floating ball 53, the sealing ball 4 is jacked up and falls down, the liquid outlet 7 can be closed in time when the low-temperature liquid reaches the highest liquid level, and the container is prevented from being overcharged.
Further, the floating ball 53 drives the connecting rod 52 to move in the notch 9 under the action of buoyancy;
When the connecting rod 52 is positioned at the middle upper part and/or the middle lower part of the notch 9, the cam 51 is abutted against the sealing ball 4, so that a gap is reserved between the sealing ball 4 and the liquid outlet 7;
When the connecting rod 52 is located at the upper part or top of the notch 9, the cam 51 is separated from the sealing ball 4, and the sealing ball 4 is abutted against the liquid outlet 7.
When the liquid level does not reach the floating ball 53, the floating ball 53 is only under the action of gravity, the cam 51 jacks up the sealing ball 4, the liquid outlet 7 is opened, and the filling of the low-temperature liquid is normal; when the liquid level reaches the floating ball 53, the buoyancy borne by the floating ball 53 is increased along with the rise of the liquid level, the floating ball 53 rotates along the axial direction of the liquid outlet pipe 2 to drive the cam 51 to rotate, the sealing ball 4 gradually sinks under the action of the self gravity and the liquid pressure in the charge limiting cavity 3, the liquid outlet channel is gradually reduced, and the liquid charging speed is reduced; when the buoyancy borne by the floating ball 53 is equal to the gravity, the liquid in the container reaches the highest liquid level at the moment, the cam 51 does not jack up the sealing ball 4 any more, the sealing ball 4 blocks the liquid outlet 7 under the action of the self gravity and the liquid pressure in the limited filling cavity 3, and the filling of the low-temperature liquid is stopped.
Further, the cam 51 has a triangular or quadrangular axial cross section along the rotary shaft 8.
The cam 51 has a cross section in the form of one of a triangle or a quadrilateral, preferably an equilateral triangle, which achieves both technical results and material savings.
Further, the vertical distance between the highest point of the cam 51 and the central line of the rotating shaft is H, and the vertical distance between the central line of the rotating shaft and the liquid outlet 7 is H; when the cam 51 abuts against the sealing ball 4 to ensure that a gap is reserved between the sealing ball 4 and the liquid outlet 7, H is more than H; h < H when the cam 51 disengages from the sealing ball 4.
When the liquid level does not reach the floating ball 53, the floating ball 53 is not subjected to buoyancy, the filling of low-temperature liquid is normal, the vertical distance from the central line of the rotating shaft 8 to the highest point of the cam 51 is greater than the vertical distance from the central line of the rotating shaft 8 to the liquid outlet 7, the highest point of the cam 51 can jack up the sealing ball 4, the sealing ball 4 leaves the liquid outlet 7, the liquid outlet 7 is opened, and the filling of the low-temperature liquid is normal; when the low-temperature liquid reaches the highest liquid level, the buoyancy force borne by the floating ball 53 is equal to the gravity, the vertical distance from the central line of the rotating shaft 8 to the highest point of the cam 51 is smaller than the vertical distance from the central line of the rotating shaft 8 to the liquid outlet 7, the cam 51 does not jack up the sealing ball 4 any more, the sealing ball 4 falls under the action of the self gravity and the liquid pressure in the charge limiting cavity 3 to block the liquid outlet 7, and the charging of the low-temperature liquid is stopped.
Furthermore, the charge limiting device is made of stainless steel materials.
The charge limiting device is made of stainless steel materials, so that the whole device has good and stable low-temperature mechanical properties.
further, the liquid outlet 7 is a circular through hole.
Liquid outlet 7 sets up to circular through-hole, convenient and the seamless intercommunication of drain pipe 2, avoids the interior liquid of limit filling cavity 3 to flow in through liquid outlet 7 and 2 gaps of drain pipe, and when ball sealer 4 whereabouts, also makes things convenient for liquid outlet 7 and ball sealer 4 to combine closely simultaneously, reaches the better effect of sealing liquid outlet 7.
Furthermore, one end of the liquid outlet pipe 2, which is far away from the limited charging cavity 3, is blocked, and the side surface of the blocked end of the liquid outlet pipe is provided with spray holes 10 which are densely arranged.
The side face of one end of the liquid outlet pipe 2, which is far away from the limited charging cavity 3, is provided with the spray holes 10 which are densely arranged, so that low-temperature liquid is sprayed inside the container through the spray holes 10 on the liquid outlet pipe 2 when flowing into the liquid outlet pipe 2, the inner wall of the container is uniformly cooled, the pressure in the container is stable, and the charging efficiency is improved.
Further, the shape of the restricted-filling cavity 3 is a cube, a cuboid or a cylinder.
The shape of the restricted filling cavity 3 is a cube, a cuboid or a cylinder, and the pressure of the liquid in the restricted filling cavity 3 borne by the sealing ball 4 can be uniform by using a regular shape, so that the liquid outlet is better blocked.
As shown in fig. 3 and 4, the present invention further provides a top filling pipeline using the above-mentioned charge-limiting device, comprising a liquid filling pipe 11, a top filling valve 12 and a charge-limiting device 13, wherein the top filling valve 12 is installed at one end of the liquid filling pipe 11, and the top filling valve 12 is used for controlling the opening or closing of the liquid filling pipe 11; the other end of the liquid charging pipe 11 is connected with the liquid inlet pipe 1 of the filling limiting device 13.
The top filling pipeline is provided with the filling limiting device, so that the filling can be stopped in time when the top filling pipeline reaches the highest liquid level during filling, the over-filling of the container is prevented, the liquid filling amount of the container can be adjusted by adjusting the height of the filling limiting device, and meanwhile, the filling limiting device is small in size and simple and convenient to install.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A fixed type deep cooling pressure container charge limiting device is characterized by comprising a liquid inlet pipe, a liquid outlet pipe, a charge limiting cavity, a sealing ball and a buoyancy rotating mechanism;
A liquid inlet is arranged above the charge limiting cavity and is communicated with a liquid inlet pipe, a liquid outlet is arranged below the charge limiting cavity and is communicated with a liquid outlet pipe;
The sealing ball is arranged in the restricted-filling cavity and is positioned above the liquid outlet;
A rotating shaft is arranged in the liquid outlet pipe or at the liquid outlet, and a notch is formed in the side surface of the liquid outlet pipe close to one end of the charge limiting cavity; the buoyancy rotating mechanism penetrates through the notch, one end of the buoyancy rotating mechanism is installed on the rotating shaft, and the other end of the buoyancy rotating mechanism is positioned outside the liquid outlet pipe;
The buoyancy rotating mechanism can rotate along the rotating shaft in the axial direction of the liquid outlet pipe, so that the sealing ball and the buoyancy rotating mechanism form an opening and closing mechanism of the liquid outlet.
2. the fixed cryogenic pressure vessel charge-limiting device according to claim 1, wherein the buoyancy rotating mechanism comprises a cam, a connecting rod and a floating ball, the cam is mounted on the rotating shaft, one end of the connecting rod is fixedly connected with the cam, and the other end of the connecting rod penetrates through the notch to be connected with the floating ball.
3. The fixed cryogenic pressure vessel charge-limiting device of claim 2, wherein the floating ball is buoyant to drive the connecting rod to move in the slot;
When the connecting rod is positioned at the middle upper part and/or the middle lower part of the notch, the cam is abutted against the sealing ball to ensure that a gap is reserved between the sealing ball and the liquid outlet;
When the connecting rod is positioned at the upper part or the top of the notch, the cam is separated from the sealing ball, and the sealing ball is propped against the liquid outlet.
4. the fixed cryogenic pressure vessel charge limiting device of claim 2, wherein the cam has a triangular or quadrangular axial cross section along the axis of rotation.
5. the fixed cryogenic pressure vessel charge-limiting device of claim 3, wherein the vertical distance between the highest point of the cam and the center line of the rotating shaft is H, and the vertical distance between the center line of the rotating shaft and the liquid outlet is H; when the cam abuts against the sealing ball to enable a gap to be reserved between the sealing ball and the liquid outlet, H is larger than H; h < H when the cam disengages from the sealing ball.
6. the fixed cryogenic pressure vessel charge-limiting device of claim 1, wherein the charge-limiting device is made of stainless steel material.
7. The fixed cryogenic pressure vessel charge limiting device of claim 1, wherein the liquid outlet is a circular through hole.
8. the fixed type cryogenic pressure vessel charge limiting device according to claim 1, wherein one end of the liquid outlet pipe, which is far away from the charge limiting cavity, is sealed, and spray holes which are densely arranged are arranged on the side surface of the sealed end of the liquid outlet pipe.
9. The fixed cryogenic pressure vessel charge-limiting device of claim 1, wherein the charge-limiting cavity is in the shape of a cube, cuboid or cylinder.
10. a top-filling line using the filling limit device of any one of claims 1 to 9, comprising a liquid filling pipe, a top filling valve and a filling limit device, wherein the top filling valve is mounted at one end of the liquid filling pipe and is used for controlling the opening or closing of the liquid filling pipe; the other end of the liquid filling pipe is connected with a liquid inlet pipe of the filling limiting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698807.5U CN209800731U (en) | 2019-05-15 | 2019-05-15 | Fixed type deep cooling pressure vessel filling limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698807.5U CN209800731U (en) | 2019-05-15 | 2019-05-15 | Fixed type deep cooling pressure vessel filling limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800731U true CN209800731U (en) | 2019-12-17 |
Family
ID=68832749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920698807.5U Active CN209800731U (en) | 2019-05-15 | 2019-05-15 | Fixed type deep cooling pressure vessel filling limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800731U (en) |
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2019
- 2019-05-15 CN CN201920698807.5U patent/CN209800731U/en active Active
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