Quantitative liquid discharge equipment for tetrahydrofuran

Abstract

The utility model relates to the technical field of tetrahydrofuran production, in particular to quantitative liquid drainage equipment for tetrahydrofuran, which comprises a liquid storage tank and a gas storage tank, a bottom frame is erected at the bottom of the liquid storage tank, the gas storage tank is arranged at the other end of the top of the bottom frame, and a ventilation connecting pipe is connected to the center of the bottom of the liquid storage tank and the center of the bottom of the gas storage tank. The top of the liquid storage tank is in threaded connection with a detachable cover plate, a liquid supply valve pipe is installed in the center of the top of the detachable cover plate, the top of the outer wall of the liquid storage tank communicates with a liquid taking valve pipe, the liquid storage tank comprises a liquid storage inner cylinder and an outer protection cylinder, and the outer wall of the liquid storage inner cylinder is sleeved with the outer protection cylinder. A piston plate is embedded in the inner wall of the liquid storage inner cylinder; according to the device, the problems that in the prior art, after liquid storage is achieved through an existing device, during liquid taking, material taking is inconvenient, an additional device is needed for assistance, a liquid discharging assembly and a protection assembly cannot be combined for use, and the liquid discharging amount is inconvenient to control during liquid discharging are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tetrahydrofuran production technical field, concretely is a kind of tetrahydrofuran's quantitative liquid discharge equipment. BACKGROUND

[0002] Tetrahydrofuran solution is an important chemical raw material, widely used in organic synthesis, medicine, pesticide and other fields. However, tetrahydrofuran has the characteristics of flammable and explosive, and its storage and transportation need special equipment and strict safety measures.

[0003] The existing device is not convenient to take material when taking liquid after realizing liquid storage, needs additional device to assist, cannot be combined with liquid discharge assembly and protection assembly, so that it is not convenient to control liquid discharge amount when discharging.

[0004] Therefore, in view of the above, the existing structure and the lack are improved, and a kind of tetrahydrofuran's quantitative liquid discharge equipment is provided, to achieve more practical value purpose. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of tetrahydrofuran's quantitative liquid discharge equipment to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of tetrahydrofuran's quantitative liquid discharge equipment, including liquid storage tank and gas storage tank, the bottom of the liquid storage tank is erected with chassis, and the top of chassis other end is provided with gas storage tank, the bottom center of the liquid storage tank and gas storage tank is connected with vent connection pipe, the top of the liquid storage tank is connected with detachable cover plate with screw thread, and the top center of detachable cover plate is installed with liquid supply valve pipe, the top of the outer wall of the liquid storage tank is connected with liquid taking valve pipe, the liquid storage tank includes liquid storage inner cylinder and outer protection cylinder, the outer wall of the liquid storage inner cylinder is sleeved with outer protection cylinder, the inner wall of the liquid storage inner cylinder is embedded with piston plate, and the connecting place of piston plate outer ring and the liquid storage inner cylinder is provided with sealing sleeve ring;

[0007] The inside of the gas storage tank is embedded with piston push plate, the top outside of the gas storage tank is installed with connecting side frame, and the top wall inside of connecting side frame is provided with limit ring plate, and the middle part of limit ring plate is vertically installed with electric push rod, and the bottom of electric push rod is connected with the piston push plate.

[0008] Further, the bottom center of the liquid storage tank is provided with vent interface, and the vent interface is connected with vent connection pipe with screw thread.

[0009] Further, the bottom both sides of the detachable cover plate are provided with handle.

[0010] Further, the outside of the outer protection cylinder is embedded with transparent panel.

[0011] Further, the liquid storage inner cylinder and the outer protective cylinder constitute a wrapped connection, and the liquid storage inner cylinder is in communication with the gas storage tank through the ventilation connecting pipe.

[0012] Further, the connecting side frame constitutes a lifting structure through the electric push rod and the piston push plate.

[0013] Further, the piston push plate is lowered to drive the piston plate to rise through the gas pressure.

[0014] The utility model provides a kind of quantitative liquid discharge equipment of tetrahydrofuran, with the following beneficial effects:

[0015] 1, the utility model discloses a separate gas storage tank as the auxiliary equipment of liquid storage tank, pure nitrogen is stored in gas storage tank, piston plate is provided at the inner wall bottom of liquid storage tank, and the bottom of liquid storage tank and gas storage tank is communicated, nitrogen gas is compressed, piston plate is promoted to rise, so that tetrahydrofuran solution is discharged from the top liquid valve pipe;

[0016] Nitrogen gas pressure is used, and liquid is discharged from the top, and in the way of piston cooperation gas pressure, liquid can be slowly squeezed from the top, so that liquid is more stable when discharging, and under the pressure of gas pressure, there is no dripping and flowing situation;

[0017] It is convenient to judge the liquid discharge amount of liquid valve pipe according to the lifting value precision of piston plate, to realize the effect of quantitative liquid discharge.

[0018] 2, the utility model discloses that when liquid valve pipe is in the valve closed state, the pressure in tetrahydrofuran solution can be regulated and controlled by using piston push plate lifting, to ensure the stability of internal pressure, so that tetrahydrofuran solution storage is more stable, logic is simple, and equipment reliability and stability are high. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosure of the utility model will become more easily understood with reference to the accompanying drawings. Those skilled in the art will easily understand that these drawings are only used for illustrating the technical scheme of the utility model, and are not intended to limit the protection scope of the utility model. In the drawings:

[0020] Figure 1 It is the right view three-dimensional structure schematic diagram of the utility model quantitative liquid discharge equipment of tetrahydrofuran;

[0021] Figure 2 It is the left view three-dimensional structure schematic diagram of the utility model quantitative liquid discharge equipment of tetrahydrofuran;

[0022] Figure 3 It is the bottom view three-dimensional structure schematic diagram of the utility model quantitative liquid discharge equipment of tetrahydrofuran;

[0023] Figure 4 It is a kind of four hydrogen furan's quantitative liquid discharge equipment's liquid storage tank internal three-dimensional structure schematic diagram.

[0024] In the drawing: 1, liquid storage tank;101, liquid storage inner cylinder;102, outer protective cylinder;2, gas storage tank;3, chassis;4, liquid taking valve pipe;5, detachable cover plate;501, liquid supply valve pipe;6, connecting side frame;7, limit ring plate;8, electric push rod;9, vent connection pipe;10, handle;11, piston plate;12, vent interface;13, sealing sleeve;14, transparent panel;15, piston push plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0026] Please refer to Figures 1-4 The utility model provides a technical scheme: a kind of four hydrogen furan's quantitative liquid discharge equipment, including liquid storage tank 1 and gas storage tank 2, the bottom of liquid storage tank 1 is equipped with chassis 3, and the top of chassis 3 is provided with gas storage tank 2 in another end, and the bottom center of liquid storage tank 1 and gas storage tank 2 is connected with vent connection pipe 9, and the top of liquid storage tank 1 is screw thread connection with detachable cover plate 5, and the top center of detachable cover plate 5 is installed with liquid supply valve pipe 501, and the top of the outer wall of liquid storage tank 1 is connected with liquid taking valve pipe 4, and liquid storage tank 1 includes liquid storage inner cylinder 101 and outer protective cylinder 102, and the outer wall of liquid storage inner cylinder 101 is sleeved with outer protective cylinder 102, and the inner wall of liquid storage inner cylinder 101 is embedded with piston plate 11, and the outer circle of piston plate 11 and the connecting place of liquid storage inner cylinder 101 are provided with sealing sleeve 13;

[0027] The inside of gas storage tank 2 is embedded with piston push plate 15, and the top outside of gas storage tank 2 is installed with connecting side frame 6, and the top wall inside of connecting side frame 6 is provided with limit ring plate 7, and the middle part of limit ring plate 7 is vertically installed with electric push rod 8, and the bottom of electric push rod 8 is connected with piston push plate 15;The bottom center of liquid storage tank 1 is provided with vent interface 12, and vent interface 12 is screw thread connection with vent connection pipe 9;The bottom of detachable cover plate 5 is provided with handle 10 on both sides;The outside of outer protective cylinder 102 is embedded with transparent panel 14;Liquid storage inner cylinder 101 and outer protective cylinder 102 constitute wrap connection, and liquid storage inner cylinder 101 is communicated with gas storage tank 2 through vent connection pipe 9;Connecting side frame 6 constitutes lifting structure through electric push rod 8 and piston push plate 15;Piston push plate 15 is lowered to drive piston plate 11 to rise through air pressure.

[0028] The independent gas storage tank 2 is used as an auxiliary equipment of the liquid storage tank 1, the pure nitrogen is stored in the gas storage tank 2, the piston plate 11 is arranged at the bottom of the inner wall of the liquid storage tank 1, the bottom of the liquid storage tank 1 and the bottom of the gas storage tank 2 are communicated, the nitrogen is compressed, the piston plate 11 is pushed to rise, and then the tetrahydrofuran solution is discharged from the liquid taking valve pipe 4 at the top;

[0029] The nitrogen gas pressure mode is adopted, the liquid is discharged from the top, the piston cooperates with the gas pressure mode, the liquid can be slowly extruded from the top, the liquid discharge is more stable, and the dripping and flowing do not occur under the pressure of the gas pressure;

[0030] The liquid discharge amount of the liquid taking valve pipe 4 can be judged according to the lifting value precision of the piston plate 11, and the quantitative liquid discharge effect is realized.

[0031] When the liquid taking valve pipe 4 is in the valve closing state, the piston push plate 15 can also be lifted to control the pressure of the tetrahydrofuran solution, so that the internal pressure is stable, the tetrahydrofuran solution is stored more stably, the logic is simple, and the equipment reliability and stability are high.

[0032] The outer side of the liquid storage inner cylinder 101 is provided with the outer protective cylinder 102, the outer protective cylinder 102 wraps the inner side of the liquid storage inner cylinder 101, can heat preservation, isolation protection to the inner side, and the transparent panel 14 is embedded on the outer side, the internal solution condition can be observed, and the lifting condition of the piston plate 11 is also convenient to determine.

[0033] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can think of changes or replacements without creative labor within the technical range disclosed by the present application, which should be covered in the protection scope of the present application, therefore, the protection scope of the present application should be limited to the protection scope defined in the claims.

Claims

1. A quantitative liquid discharge device for tetrahydrofuran, comprising a liquid storage tank (1) and a gas storage tank (2), characterized in that: The bottom of the liquid storage tank (1) is provided with a base frame (3), and the other end of the top of the base frame (3) is provided with a gas storage tank (2), the centers of the bottoms of the liquid storage tank (1) and the gas storage tank (2) are connected with a ventilation connecting pipe (9), the top of the liquid storage tank (1) is threadedly connected with a detachable cover plate (5), and the center of the top of the detachable cover plate (5) is installed with a liquid supply valve pipe (501), the top of the outer wall of the liquid storage tank (1) is connected with a liquid extraction valve pipe (4), the liquid storage tank (1) comprises a liquid storage inner cylinder (101) and an outer protective cylinder (102), the outer wall of the liquid storage inner cylinder (101) is provided with an outer protective cylinder (102), the inner wall of the liquid storage inner cylinder (101) is embedded with a piston plate (11), and a sealing ring (13) is provided at the connection between the outer ring of the piston plate (11) and the liquid storage inner cylinder (101); A piston push plate (15) is embedded in the inner side of the gas storage tank (2), a connecting side frame (6) is installed on the outer side of the top of the gas storage tank (2), and a limiting ring plate (7) is provided on the inner side of the top wall of the connecting side frame (6), and an electric push rod (8) is vertically installed in the middle of the limiting ring plate (7), and the bottom of the electric push rod (8) is connected to the piston push plate (15).

2. A quantitative liquid discharge device for tetrahydrofuran according to claim 1, characterized in that, A ventilation interface (12) is provided at the bottom center of the liquid storage tank (1), and the ventilation interface (12) is threadedly connected to the ventilation connecting pipe (9).

3. A quantitative liquid discharge device for tetrahydrofuran according to claim 1, characterized in that, Handles (10) are provided on both sides of the bottom of the detachable cover (5).

4. A quantitative drainage device for tetrahydrofuran according to claim 1, characterized in that, A transparent panel (14) is embedded on the outer side of the outer protective tube (102).

5. A quantitative liquid discharge device for tetrahydrofuran according to claim 1, characterized in that, The liquid storage inner cylinder (101) and the outer protective cylinder (102) form a wrapping connection, and the liquid storage inner cylinder (101) is communicated with the gas storage tank (2) via a ventilation connecting pipe (9).

6. A quantitative liquid discharge device for tetrahydrofuran according to claim 1, characterized in that, The connecting side frame (6) forms a lifting structure through an electric push rod (8) and a piston push plate (15).

7. A quantitative liquid discharge device for tetrahydrofuran according to claim 1, characterized in that, The piston push plate (15) descends, driving the piston plate (11) upward through air pressure.

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