Liquid oxygen constant-pressure tank filling device

Abstract

The utility model discloses a liquid oxygen constant pressure tank filling device, which comprises filling tanks and a base, four groups of stabilizing structures are arranged on the base, each stabilizing structure comprises a groove, a clamping plate and a threaded rod, the bottom ends of the filling tanks are respectively clamped in the grooves, one side of each clamping plate is in fit contact with one side of the outer surface of each filling tank, and the other side of each clamping plate is in fit contact with one side of the outer surface of each filling tank. The side, close to the upper end, of the filling tank is connected with a pressure gauge in a penetrating mode, a pressure relief cylinder connected with the interior of the filling tank in a penetrating mode is fixedly arranged above the pressure gauge and located on one side of the filling tank, and the outer surface of the end, away from the filling tank, of the pressure relief cylinder is in threaded connection with a sealing cover. The pressure relief device has the advantages that when the pressure intensity is larger than the sum of the elastic force of the pressure relief spring and the gravity of the pressure relief push piece, the pressure relief push piece can be ejected out and move towards the filter screen plate along the limiting rod, when the pressure relief push piece moves into the pressure relief cylinder with the maximum inner diameter, gas in the filling tank can be exhausted through the filter screen plate, and the filling tank is prevented from being blocked. Therefore, pressure relief and stable filling of the filling tank are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid oxygen tank fills technical field, concretely is a kind of liquid oxygen constant pressure tank filling device. BACKGROUND

[0002] Liquid oxygen refers to the liquid state formed by cooling oxygen to below its boiling point, and it is a common oxygen storage and transportation method, with the characteristics of high concentration and high purity, and is widely used in medical, industrial and aerospace fields. In the medical field, liquid oxygen is usually used to treat respiratory diseases or provide oxygen therapy. In the industrial field, liquid oxygen can be used as an oxidizing agent, fuel and raw material for oxidation reactions. In the aerospace field, liquid oxygen is usually used as an oxidizing agent for rocket fuel, which, when mixed with fuel, produces high-temperature and high-pressure combustion products to propel the rocket. During liquid oxygen production, it is necessary to fill the liquid oxygen for convenient transportation.

[0003] However, the existing liquid oxygen tank filling device is prone to cause the liquid oxygen to stop filling due to the gradual increase of the tank pressure during filling, and the filling process is unstable when filling multiple tanks. Therefore, it does not meet the current needs, and for this purpose, a liquid oxygen constant pressure tank filling device is proposed. SUMMARY

[0004] The purpose of the utility model is to provide a liquid oxygen constant pressure tank filling device, in order to solve the above technical problems, the technical scheme of the utility model is:

[0005] A liquid oxygen constant pressure tank filling device, comprising a filling tank and a base, the base is provided with four groups of stabilizing structures, the stabilizing structure comprises a groove, a clamping plate and a threaded rod, the bottom end of the filling tank is clamped in the interior of the groove, and one side of the clamping plate is in contact with one side of the outer surface of the filling tank, one side of the filling tank near the upper end is connected with a pressure gauge, above the pressure gauge and on one side of the filling tank is fixedly provided with a pressure relief cylinder connected with the interior of the filling tank, the outer surface of one end of the pressure relief cylinder away from the filling tank is threadedly connected with a sealing cover.

[0006] Preferably, the clamping plate is movably arranged in the interior of the groove, one side of the clamping plate is rotatably connected with a threaded rod through a rotating shaft, and one end of the threaded rod is threadedly penetrated through the base and extends to the outside of the base.

[0007] Preferably, a filter screen plate is fixedly arranged in the interior of the pressure relief cylinder and away from the filling tank, a pressure relief push piece is movably arranged on one side of the filter screen plate close to the filling tank, and the outer surface of the pressure relief push piece is tightly attached to the inner wall of the pressure relief cylinder through a sealing gasket.

[0008] Preferably, limit rods are fixedly connected to both ends of one side of the filter screen plate close to the pressure relief push piece, and both ends of the pressure relief push piece are slidably connected to the outer surface of the limit rods.

[0009] Preferably, the pressure relief push piece is close to one side of the filter screen plate, and a pressure relief spring fixedly connected with the filter screen plate is arranged between the two limiting rods.

[0010] Preferably, the length of the limiting rod is greater than the sum of the maximum length of the pressure relief spring and the pressure relief push piece.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The utility model discloses a stable structure of filling tank, which comprises a base, a plurality of grooves are arranged on the base, and a plurality of clamping plates are arranged on the base and are connected with the grooves, and a plurality of threaded rods are arranged on the base and are connected with the clamping plates.

[0013] 2、When the pressure inside the filling tank is high, the sealing cover is opened, and when the pressure is greater than the sum of the elastic force of the pressure relief spring and the gravity of the pressure relief push piece, the pressure relief push piece is pushed out and moves along the limiting rod to the direction of the filter screen plate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is the whole front sectional view of the utility model;

[0016] Figure 3 It is the structure schematic view of the base of the utility model;

[0017] Figure 4 It is the structure schematic view of the utility model Figure 2 A place in the utility model.

[0018] In the drawing: 1, filling tank;2, base;3, stable structure;301, groove;302, clamping plate;303, shaft;304, threaded rod;4, pressure gauge;5, pressure relief cylinder;6, sealing cover;7, filter screen plate;8, pressure relief spring;9, pressure relief push piece;10, limiting rod. DETAILED DESCRIPTION

[0019] The technical solutions 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, not all the embodiments.

[0020] AsFigure 1 As shown in the utility model provides an embodiment: a kind of liquid oxygen constant pressure tank filling device, including filling tank 1 and base 2, four groups of stabilizing structures 3 are equipped on base 2, stabilizing structure 3 includes groove 301, clamping plate 302 and threaded rod 304, the bottom end of filling tank 1 is respectively clamped in the inside of groove 301, and the side of clamping plate 302 is in contact with the side of the outer surface of filling tank 1, and the side of filling tank 1 close to upper end is connected with pressure gauge 4, the upper side of pressure gauge 4, and the side of filling tank 1 is fixedly provided with the pressure relief cylinder 5 being connected with the inside of filling tank 1, and the outer surface of the end of pressure relief cylinder 5 away from filling tank 1 is threadedly connected with sealing cover 6.

[0021] As a preferred technical solution of the embodiment, as shown in Figure 1 And Figure 3 As shown, clamping plate 302 is movably arranged in the inside of groove 301, and the side of clamping plate 302 is rotatably connected with threaded rod 304 through pivot 303, and one end of threaded rod 304 is threadedly penetrated through base 2 and extends to the outside of base 2.

[0022] In the embodiment, filling tank 1 is placed in the inside of groove 301 respectively, and then threaded rod 304 is rotated, so that threaded rod 304 is threadedly penetrated through base 2 and rotatably connected with the side of clamping plate 302 through pivot 303, and then clamping plate 302 is pushed to be in contact with the outer surface of filling tank 1, so that filling tank 1 can be clamped stably in cooperation with the inner wall of groove 301, and the size of filling tank 1 can be clamped conveniently, and the stability of filling tank 1 during filling is improved.

[0023] As a preferred technical solution of the embodiment, as shown in Figure 2 And Figure 4 As shown, filter screen plate 7 is fixedly arranged in the inside of pressure relief cylinder 5 and away from filling tank 1, pressure relief push piece 9 is movably arranged on the side of filter screen plate 7 close to filling tank 1, the outer surface of pressure relief push piece 9 is tightly in contact with the inner wall of pressure relief cylinder 5 through sealing pad, both ends of filter screen plate 7 close to pressure relief push piece 9 are fixedly connected with limiting rod 10, both ends of pressure relief push piece 9 are slidably connected with the outer surface of limiting rod 10, pressure relief spring 8 fixedly connected with filter screen plate 7 is arranged on the side of pressure relief push piece 9 close to filter screen plate 7 and between two limiting rods 10, and the length of limiting rod 10 is greater than the sum of the maximum length of pressure relief spring 8 and pressure relief push piece 9.

[0024] In this embodiment, when the pressure gauge 4 monitors that the gas pressure inside the filling tank 1 is high during tank filling, the sealing cover 6 is opened, at this time, when the pressure is greater than the sum of the elastic force of the pressure relief spring 8 and the gravity of the pressure relief push piece 9, the pressure relief push piece 9 is pushed out and moves along the limiting rod 10 to the direction of the filter screen plate 7, when the pressure relief push piece 9 moves to the inside of the maximum inner diameter of the pressure relief cylinder 5, the gas inside the filling tank 1 is discharged through the filter screen plate 7, so that the pressure relief of the filling tank 1 is realized and the stable filling is realized.

[0025] Working principle: when the liquid oxygen tank filling device is used, first, the filling tank 1 is placed in the groove 301, then the threaded rod 304 is rotated, the threaded rod 304 is screwed through the base 2, and the threaded rod 304 is rotated through the rotating shaft 303 and one side of the clamping plate 302, so as to push the clamping plate 302 to the outer surface of the filling tank 1, so as to clamp the filling tank 1 stably in cooperation with the inner wall of the groove 301, and the clamping can be conveniently carried out according to the size of the filling tank 1, and the stability of the filling tank 1 during filling is improved.

[0026] After the filling tank 1 is stably filled, the liquid oxygen in the filling tank 1 is filled, when the pressure gauge 4 monitors that the gas pressure inside the filling tank 1 is high during tank filling, the sealing cover 6 is opened, at this time, when the pressure is greater than the sum of the elastic force of the pressure relief spring 8 and the gravity of the pressure relief push piece 9, the pressure relief push piece 9 is pushed out and moves along the limiting rod 10 to the direction of the filter screen plate 7, when the pressure relief push piece 9 moves to the inside of the maximum inner diameter of the pressure relief cylinder 5, the gas inside the filling tank 1 is discharged through the filter screen plate 7, so that the pressure relief of the filling tank 1 is realized and the stable filling is realized.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A liquid oxygen constant pressure tank filling device, comprising a filling tank (1) and a base (2), characterized in that: The base (2) is provided with four sets of stabilizing structures (3). The stabilizing structure (3) includes a groove (301), a clamping plate (302) and a threaded rod (304). The bottom end of the filling tank (1) is respectively clamped inside the groove (301), and one side of the clamping plate (302) is in close contact with one side of the outer surface of the filling tank (1). A pressure gauge (4) is connected through the filling tank (1) near the upper end. Above the pressure gauge (4) and on one side of the filling tank (1), a pressure relief cylinder (5) is fixedly provided and is connected through the filling tank (1). A sealing cap (6) is threadedly connected to the outer surface of the end of the pressure relief cylinder (5) away from the filling tank (1).

2. The liquid oxygen constant pressure tank filling device according to claim 1, characterized in that: The clamping plate (302) is movably disposed inside the groove (301). One side of the clamping plate (302) is rotatably connected to a threaded rod (304) via a rotating shaft (303). One end of the threaded rod (304) is threaded through the base (2) and extends to the outside of the base (2).

3. The liquid oxygen constant pressure tank filling device according to claim 1, characterized in that: Inside the pressure relief cylinder (5), a filter screen plate (7) is fixedly provided at one end away from the filling tank (1). A pressure relief pusher plate (9) is movably provided on the side of the filter screen plate (7) close to the filling tank (1), and the outer surface of the pressure relief pusher plate (9) is tightly bonded to the inner wall of the pressure relief cylinder (5) by a sealing gasket.

4. A liquid oxygen constant pressure tank filling device according to claim 3, characterized in that: The filter screen (7) has two ends fixedly connected to limit rods (10) on the side near the pressure relief push plate (9), and the two ends of the pressure relief push plate (9) are slidably connected to the outer surface of the limit rods (10).

5. A liquid oxygen constant pressure tank filling device according to claim 4, characterized in that: The pressure relief push plate (9) is located on the side close to the filter screen plate (7), and a pressure relief spring (8) is fixedly connected to the filter screen plate (7) between the two limiting rods (10).

6. A liquid oxygen constant pressure tank filling device according to claim 5, characterized in that: The length of the limiting rod (10) is greater than the sum of the maximum lengths of the pressure relief spring (8) and the pressure relief push plate (9).

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