Filling limiting device for fixed cryogenic pressure container

Abstract

The utility model discloses a filling limiting device for a fixed cryogenic pressure container, and relates to the technical field of cryogenic pressure. The filling limiting device for the fixed type cryogenic pressure container comprises a connecting ring, a connecting mechanism and a floating mechanism, an input pipe is arranged on the inner wall of the connecting ring, the connecting mechanism comprises a first outer threaded pipe arranged on the connecting ring and a rubber anti-skid lantern ring arranged in the first outer threaded pipe, and the rubber anti-skid lantern ring is connected into the first outer threaded pipe in a clamped mode. An output pipe is arranged on the connecting mechanism, and the floating mechanism comprises a limiting plate arranged in the connecting mechanism and a hollow rod arranged on the limiting plate. According to the device, parts are assembled mainly in a threaded connection mode and a clamping connection mode, on one hand, workers can conveniently clean the blocked inner wall, normal use of the device is guaranteed, on the other hand, damaged parts can be conveniently replaced in time, electric welding is not needed, replacement is convenient and rapid, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of cryogenic pressure, in particular to a filling limit device for a fixed cryogenic pressure container. Background Art

[0002] Chinese patent document CN212657579U discloses a filling limit device for a fixed cryogenic pressure vessel. The utility model discloses a filling limit device for a fixed cryogenic pressure vessel, comprising a liquid inlet pipe in a tank, a cone ring is welded at the bottom of the liquid inlet pipe in the tank, a spray pipe is welded at the bottom of the cone ring, a spray head is welded at the bottom of the spray pipe, a hollow ball is arranged at the bottom of the inner surface of the spray pipe, a spray hole is opened on the inner side of the spray head, and the total area of ​​the spray holes is larger than the inner cross-sectional area of ​​the liquid inlet pipe in the tank, the inner cross-sectional area of ​​the liquid inlet pipe in the tank is the same as the inner cross-sectional area of ​​the top of the cone ring, and the inner cross-sectional area of ​​the spray pipe is the same as the inner cross-sectional area of ​​the bottom of the cone ring. The utility model injects liquid through the liquid inlet pipe in the tank. As the liquid increases, the hollow ball is driven to float upward. When the hollow ball floats to the position of the cone ring, the fluid flow gap between the hollow ball and the cone ring is sharply reduced, the liquid inlet resistance is increased, and the filling machine automatically stops, thus solving the problems of complex operation, high cost and poor limited filling effect of the existing tank body during limited filling.

[0003] The above device is directly welded to the components such as the spray pipe. When rust appears on the inner wall of the device, it cannot be disassembled for cleaning. The workload of disassembly and welding is huge and the maintenance cost is high. In view of the above problems, corrections are made. Utility Model Content

[0004] The utility model aims to provide a fixed filling limit device for a cryogenic pressure vessel, which can solve the problem that the above-mentioned device is directly welded to components such as a spray pipe, cannot be disassembled for cleaning when rust appears on the inner wall of the device, and the workload of disassembly and welding is huge, and the maintenance cost is high.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filling limit device for a fixed cryogenic pressure vessel, comprising a connecting ring, a connecting mechanism and a floating mechanism, the inner wall of the connecting ring is provided with an input pipe, the connecting mechanism comprises a first externally threaded tube arranged on the connecting ring and a rubber anti-slip sleeve arranged in the first externally threaded tube, the rubber anti-slip sleeve is snap-connected in the first externally threaded tube, an output pipe is arranged on the connecting mechanism, the floating mechanism comprises a limiting plate arranged in the connecting mechanism and a hollow rod arranged on the limiting plate, and the hollow rod is fixedly connected to the bottom of the limiting plate.

[0006] Preferably, the connecting mechanism also includes a limit block, a clamping ring and a connecting ring. The limit block is arranged above the rubber anti-slip ring, the bottom of the limit block is fixedly connected with a clamping ring, and the top of the limit block is fixedly connected with a connecting ring. The device mainly adopts threaded connection and clamping connection to assemble parts. On the one hand, this design is convenient for the staff to clean the blocked inner wall to ensure the normal use of the device. On the other hand, it is convenient to replace damaged parts in time without the use of electric welding. The replacement is convenient and quick, and the work efficiency is higher.

[0007] Preferably, the floating mechanism also includes a floating ball, and the bottom of the hollow rod is fixedly connected with the floating ball, and the floating ball is set as foam. The device uses buoyancy to drive the floating ball, and does not need to be matched with other electric drive equipment. It is simple to use, low in cost, and is conducive to production and sales.

[0008] Preferably, a first thread groove is provided in the connecting ring, the input pipe is threadedly connected to the first thread groove, the connecting ring is threadedly connected to the input pipe, a second thread groove is provided in the connecting ring, the first externally threaded pipe is threadedly connected to the second thread groove, the connecting ring is threadedly connected to the first externally threaded pipe, a third thread groove is provided on the connecting ring, the output pipe is threadedly connected to the third thread groove, and the connecting ring is threadedly connected to the output pipe.

[0009] Preferably, the limiting plate is overlapped and connected to the top of the limiting block, and the snap ring is snap-connected to the rubber anti-slip ring.

[0010] Preferably, the center points of the connecting ring, input pipe, connecting mechanism, output pipe and floating mechanism are all on the same straight line, the outer wall of the rubber anti-slip ring fits tightly with the inner wall of the first externally threaded tube, and the outer wall of the clamping ring fits tightly with the inner wall of the rubber anti-slip ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The fixed type cryogenic pressure vessel filling limit device is used in combination with a connecting ring, an input pipe, a connecting mechanism, a first externally threaded pipe, a rubber anti-slip sleeve, a limit block, a clamping ring, a connecting ring, an output pipe and a floating mechanism. The above device is directly welded to components such as a spray pipe. When rust appears on the inner wall of the device, it cannot be disassembled for cleaning. The disassembly and welding work is huge and the maintenance cost is high. The device mainly uses threaded connection and clamping connection to assemble the parts. This design is convenient for the staff to clean the blocked inner wall and ensure the normal use of the device. On the other hand, it is convenient to replace the damaged parts in time without the need for electric welding, which is convenient and quick to replace and has higher work efficiency.

[0013] (2) The limited filling device for the fixed cryogenic pressure vessel, through the combined use of a connecting ring, an input pipe, a connecting mechanism, an output pipe, a floating mechanism, a limiting plate, a hollow rod and a floating ball, drives the floating ball by buoyancy without the need to be equipped with other electric drive devices. It is simple to use, has a low manufacturing cost, and is conducive to production and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the drawings and embodiments:

[0015] Figure 1 is a perspective view of the present invention;

[0016] Figure 2 is an analysis diagram of the connecting mechanism of the present invention;

[0017] Figure 3 is an analysis diagram of the floating mechanism of the present invention.

[0018] Reference numerals: 1, connecting ring; 2, input pipe; 3, connecting mechanism; 301, first external threaded pipe; 302, rubber anti-slip sleeve ring; 303, limiting block; 304, clamping ring; 305, connecting ring; 4, output pipe; 5, floating mechanism; 501, limiting plate; 502, hollow rod; 503, floating ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0020] Please refer to Figures 1-3 , the present invention provides a technical solution: a limited filling device for a fixed cryogenic pressure vessel, including a connecting ring 1, a connecting mechanism 3 and a floating mechanism 5. An input pipe 2 is provided on the inner wall of the connecting ring 1. The connecting mechanism 3 includes a first external threaded pipe 301 provided on the connecting ring 1 and a rubber anti-slip sleeve ring 302 provided in the first external threaded pipe 301. The rubber anti-slip sleeve ring 302 is clamped and connected in the first external threaded pipe 301. An output pipe 4 is provided on the connecting mechanism 3. The floating mechanism 5 includes a limiting plate 501 provided in the connecting mechanism 3 and a hollow rod 502 provided on the limiting plate 501. The hollow rod 502 is fixedly connected to the bottom of the limiting plate 501.

[0021] Furthermore, the connecting mechanism 3 also includes a limit block 303, a clamping ring 304 and a connecting ring 305. The limit block 303 is arranged above the rubber anti-slip ring 302, the bottom of the limit block 303 is fixedly connected with the clamping ring 304, and the top of the limit block 303 is fixedly connected with the connecting ring 305. When in use, the clamping ring 304 is first clamped with the rubber anti-slip ring 302, the rubber anti-slip ring 302 is clamped with the first external threaded tube 301, the first external threaded tube 301 is connected with the connecting ring 1, and then the input pipe 2 is connected with the connecting ring 1, and then the output pipe 4 is connected with the connecting ring 305, and then the safety valve is connected with the input pipe 2. The device mainly adopts threaded connection and clamping connection to assemble parts. On the one hand, this design is convenient for the staff to clean the blocked inner wall and ensure the normal use of the device. On the other hand, it is convenient to replace damaged parts in time without the need for electric welding, and the replacement is convenient and fast, and the work efficiency is higher.

[0022] Furthermore, the floating mechanism 5 also includes a floating ball 503. The bottom of the hollow rod 502 is fixedly connected with the floating ball 503. The floating ball 503 is set as foam. When the safety valve leaks, liquid enters the input pipe 2. Since the floating ball 503 is made of foam material, the buoyancy will cause the floating ball 503 to rise. The diameter of the floating ball 503 is larger than the clamping ring 304, so the floating ball 503 will block the holes on the clamping ring 304, thereby preventing the liquid from flowing out of the output pipe 4. The device uses buoyancy to drive the floating ball 503, and does not need to be matched with other electric drive equipment. It is simple to use and has a low cost, which is conducive to production and sales.

[0023] Secondly, a first thread groove is provided in the connecting ring 1, the input pipe 2 is threadedly connected to the first thread groove, the connecting ring 1 is threadedly connected to the input pipe 2, a second thread groove is provided in the connecting ring 1, the first external threaded pipe 301 is threadedly connected to the second thread groove, the connecting ring 1 is threadedly connected to the first external threaded pipe 301, a third thread groove is provided on the connecting ring 305, the output pipe 4 is threadedly connected to the third thread groove, the connecting ring 305 is threadedly connected to the output pipe 4, the limiting plate 501 is overlapped and connected to the top of the limiting block 303, the clamping ring 304 is clamped and connected to the rubber anti-slip ring 302, the center points of the connecting ring 1, the input pipe 2, the connecting mechanism 3, the output pipe 4 and the floating mechanism 5 are all on the same straight line, the outer wall of the rubber anti-slip ring 302 is tightly fitted with the inner wall of the first external threaded pipe 301, and the outer wall of the clamping ring 304 is tightly fitted with the inner wall of the rubber anti-slip ring 302.

[0024] Working principle: When in use, first engage the snap ring 304 with the rubber anti-slip sleeve ring 302, engage the rubber anti-slip sleeve ring 302 with the first external threaded pipe 301, connect the first external threaded pipe 301 with the connection ring 1, then connect the input pipe 2 with the connection ring 1, then connect the output pipe 4 with the connection ring 305, and then connect the safety valve with the input pipe 2. When the safety valve leaks, the liquid enters the input pipe 2. Since the floating ball 503 is made of foam material, the buoyancy will cause the floating ball 503 to rise. And the diameter of the floating ball 503 is larger than that of the snap ring 304, so the floating ball 503 will block the hole on the snap ring 304, thus preventing the liquid from flowing out of the output pipe 4.

[0025] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A filling limit device for a fixed cryogenic pressure vessel, characterized in that: include: A connecting ring (1) having an inner wall provided with an input pipe (2); The connecting mechanism (3) comprises a first externally threaded tube (301) arranged on the connecting ring (1) and a rubber anti-slip collar (302) arranged in the first externally threaded tube (301), wherein the rubber anti-slip collar (302) is snap-connected in the first externally threaded tube (301), and an output tube (4) is arranged on the connecting mechanism (3); The floating mechanism (5) comprises a limiting plate (501) arranged in the connection mechanism (3) and a hollow rod (502) arranged on the limiting plate (501), wherein the hollow rod (502) is fixedly connected to the bottom of the limiting plate (501).

2. A filling limit device for a fixed cryogenic pressure vessel according to claim 1, characterized in that: The connection mechanism (3) further comprises a limit block (303), a clamping ring (304) and a connecting ring (305); the limit block (303) is arranged above the rubber anti-slip sleeve ring (302); the bottom of the limit block (303) is fixedly connected to the clamping ring (304); and the top of the limit block (303) is fixedly connected to the connecting ring (305).

3. A filling limit device for a fixed cryogenic pressure vessel according to claim 2, characterized in that: The floating mechanism (5) further comprises a floating ball (503), the bottom of the hollow rod (502) is fixedly connected with the floating ball (503), and the floating ball (503) is a foam arrangement.

4. The filling limit device for a fixed cryogenic pressure vessel according to claim 3, characterized in that: The connecting ring (1) is provided with a first thread groove, the input pipe (2) is threadedly connected to the first thread groove, the connecting ring (1) is threadedly connected to the input pipe (2), the connecting ring (1) is provided with a second thread groove, the first externally threaded pipe (301) is threadedly connected to the second thread groove, the connecting ring (1) is threadedly connected to the first externally threaded pipe (301), the connecting ring (305) is provided with a third thread groove, the output pipe (4) is threadedly connected to the third thread groove, and the connecting ring (305) is threadedly connected to the output pipe (4).

5. The filling limit device for a fixed cryogenic pressure vessel according to claim 4, characterized in that: The limiting plate (501) is overlapped and connected to the top of the limiting block (303), and the clamping ring (304) is clamped and connected inside the rubber anti-slip sleeve ring (302).

6. The filling limit device for a fixed cryogenic pressure vessel according to claim 5, characterized in that: The center points of the connecting ring (1), the input pipe (2), the connecting mechanism (3), the output pipe (4) and the floating mechanism (5) are all on the same straight line, the outer wall of the rubber anti-slip ring (302) is tightly fitted with the inner wall of the first externally threaded tube (301), and the outer wall of the clamping ring (304) is tightly fitted with the inner wall of the rubber anti-slip ring (302).

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