Safe liquid compressed gas separating and taking device

Abstract

The utility model provides a liquid compressed gas safe separating and taking device which comprises a separating and taking cavity which is a hollow cylinder, an anti-freezing cover is arranged on the top of the separating and taking cavity, a liquid outlet pipe is arranged on the side portion of the separating and taking cavity, a liquid inlet pipe is arranged at the bottom of the separating and taking cavity, a piston disc is horizontally arranged in the separating and taking cavity, and a connecting rod is arranged on the top of the piston disc and perpendicularly connected with the separating and taking cavity. A positioning hole is formed in the middle of the anti-freezing cover, a handle is arranged above the anti-freezing cover, the connecting rod penetrates through the positioning hole and then is fixedly connected with the handle, and a piston cavity is formed among the piston disc, the separating and taking cavity and the anti-freezing cover. According to the utility model, an intrusive separating and taking scheme is adopted, all tank-shaped containers with vertical openings can be compatible, the separating and taking volume can be controlled by controlling the speed of the power piston in separating and taking operation, frostbite to operators in the separating and taking process can be avoided by an integrated heat preservation structure, and the device has the characteristics of simplicity in operation and excellent safety protection.

Description

Technical Field

[0001] This utility model belongs to the field of chemical detection technology and relates to a safe separation device for liquid compressed gas. Background Technology

[0002] In chemical and instrumental analysis, cryogenic liquid compressed gas is widely used as a highly efficient and clean environmental carrier in analytical projects such as specific surface area analysis. Different detection schemes require different volumes of liquid compressed gas, necessitating multiple separations and transfers of the bottled liquid compressed gas. At atmospheric pressure, the liquefaction temperature of liquid compressed gas is -185.9℃, and it instantly vaporizes into gaseous compressed gas at room temperature. The process of separating the liquid compressed gas is cumbersome and the amount separated is uncontrollable, leading to a risk of frostbite. Furthermore, the large weight of the biological tanks storing the liquid compressed gas, requiring multiple people to work together during transfer, also poses a risk of breakage. Therefore, it is necessary to develop a simple, controllable, safe, and reliable liquid compressed gas separation device to overcome the shortcomings of existing instruments. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a safe liquid compressed gas separation device. This device solves the problems of the cumbersome operation process and uncontrollable separation volume of existing liquid compressed gas separation methods, which lead to the risk of frostbite during operation. In addition, when the biological tank containing the liquid compressed gas is large, the object is prone to breakage during the transfer process when multiple people work together.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A safe dispensing device for liquid compressed gas includes a dispensing chamber, which is a hollow cylinder with an antifreeze cover at the top, a liquid outlet pipe on the side, and a liquid inlet pipe at the bottom. A piston disc is provided inside the dispensing chamber, which is horizontally positioned. A connecting rod is provided at the top of the piston disc, and the two are vertically connected. A positioning hole is provided in the middle of the antifreeze cover, and a handle is provided above the antifreeze cover. The connecting rod passes through the positioning hole and is fixedly connected to the handle. A piston cavity is formed between the piston disc, the dispensing chamber, and the antifreeze cover.

[0006] Furthermore, the outlet pipe is L-shaped and bends downwards.

[0007] Furthermore, the inlet pipe is inclined, forming an angle of 10 to 20 degrees with the vertical direction.

[0008] Furthermore, the bottom of the antifreeze cover has a protrusion made of sponge, which is cylindrical and has a diameter smaller than that of the antifreeze cover.

[0009] Further, the outer wall of the liquid inlet pipe is provided with an anti-freezing layer made of sponge.

[0010] Further, the positioning hole is in frictional connection with the connecting rod.

[0011] Further, the piston disc edge is provided with an arc-shaped groove, and the groove opening faces upward and is in frictional connection with the inner wall of the separation cavity.

[0012] Further, the handle is a cylinder.

[0013] The beneficial effects of the utility model lie in that:

[0014] The utility model adopts an invasive separation scheme, can be compatible with all tank containers with vertical openings, the separation operation can control the separation volume by controlling the speed of the power piston, the integrated heat preservation structure avoids personnel frostbite caused by the separation process, and the device has the characteristics of simple operation and excellent safety protection. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional view structural schematic diagram of the utility model;

[0016] Figure 2 It is a connecting structure schematic diagram of the handle, the connecting rod and the piston disc in the utility model;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the anti-freezing cover in the utility model.

[0018] In the drawing, 1 is a handle, 2 is a connecting rod, 3 is a piston disc, 4 is a liquid inlet pipe, 5 is an anti-freezing layer, 6 is a liquid outlet pipe, 7 is a piston cavity, 8 is an anti-freezing cover, and 9 is a positioning hole. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be described in connection with the drawings and implementation methods.

[0020] As shown in the drawing, Figure 1 A liquid compressed gas safety separation device comprises a separation cavity, the separation cavity is a hollow cylinder, the top of the separation cavity is provided with an anti-freezing cover 8, the side of the separation cavity is provided with a liquid outlet pipe 6, and the bottom of the separation cavity is provided with a liquid inlet pipe 4; specifically, the liquid outlet pipe 6 is L-shaped and is bent downward, and the liquid inlet pipe 4 is inclined and is at an angle of 10-20 degrees with the vertical direction.

[0021] The separation cavity is provided with a piston disc 3, the piston disc 3 is horizontally arranged, the top of the piston disc 3 is provided with a connecting rod 2, and the piston disc 3 and the connecting rod 2 are vertically connected; the edge of the piston disc 3 is provided with an arc-shaped groove, and the groove opening faces upward and is in frictional connection with the inner wall of the separation cavity.

[0022] As shown in the drawing, Figure 3As shown, the middle part of the anti-freezing cover 8 is provided with a positioning hole 9, and the upper part of the anti-freezing cover 8 is provided with a handle 1; specifically, the handle 1 is in a cylindrical structure; as shown Figure 2 As shown, the connecting rod 2 is fixedly connected with the handle 1 after penetrating through the positioning hole 9, and the positioning hole 9 is in frictional connection with the connecting rod 2.

[0023] The piston disc 3, the anti-freezing cover 8 and the dispensing cavity form a piston cavity 7; the bottom of the anti-freezing cover 8 is provided with a protrusion which is made of sponge and is in a cylindrical shape and has a diameter smaller than that of the anti-freezing cover 8.

[0024] In addition, the outer wall of the liquid inlet pipe 4 is provided with an anti-freezing layer 5 which is made of sponge.

[0025] Before use, the connecting rod 2 needs to penetrate through the positioning hole 9, the piston disc 3 and the handle 1 need to be kept on the upper and lower sides of the anti-freezing cover 8, and the anti-freezing cover 8 needs to be covered above the piston cavity 7; when performing the dispensing operation, the liquid inlet pipe 4 is put into the tank to be partitioned, the handle 1 is pulled upward along the vertical direction, the piston disc 3 is driven by the connecting rod 2, a negative pressure vacuum chamber is formed in the piston cavity 7, and the liquid compressed gas enters the piston cavity 7 through the liquid inlet pipe 4 and is taken out through the liquid outlet pipe 6.

Claims

1. A safe dispensing device for liquid compressed gas, characterized in that, The device includes a dispensing cavity, which is a hollow cylinder with an antifreeze cap (8) at the top, an outlet pipe (6) on the side, and an inlet pipe (4) at the bottom. A piston disc (3) is provided inside the dispensing cavity. The piston disc (3) is horizontally positioned and has a connecting rod (2) at its top, which is vertically connected to the piston disc. A positioning hole (9) is provided in the middle of the antifreeze cap (8), and a handle (1) is provided above the antifreeze cap (8). The connecting rod (2) passes through the positioning hole (9) and is fixedly connected to the handle (1). A piston cavity (7) is formed between the piston disc (3), the dispensing cavity, and the antifreeze cap (8).

2. The liquid compressed gas safety dispensing device according to claim 1, characterized in that, The outlet pipe (6) is L-shaped and bends downwards.

3. The liquid compressed gas safety dispensing device according to claim 1, characterized in that, The inlet pipe (4) is inclined and forms an angle of 10 to 20 degrees with the vertical direction.

4. The liquid compressed gas safety dispensing device according to claim 1, characterized in that, The bottom of the antifreeze cover (8) is provided with a protrusion made of sponge. The protrusion is cylindrical and its diameter is smaller than that of the antifreeze cover (8).

5. A safe liquid compressed gas dispensing device according to claim 1, characterized in that, The outer wall of the liquid inlet pipe (4) is provided with an antifreeze layer (5), which is made of sponge.

6. The liquid compressed gas safety dispensing device according to claim 1, characterized in that, The positioning hole (9) is frictionally connected to the connecting rod (2).

7. A safe liquid compressed gas dispensing device according to claim 1, characterized in that, The piston disc (3) has an arc-shaped groove on its edge, and the groove opening faces upward, and it is in frictional connection with the inner wall of the dispensing cavity.

8. A safe liquid compressed gas dispensing device according to claim 1, characterized in that, The handle (1) is cylindrical.

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