Air separation unit liquid oxygen tank oxygen recovery unit

Abstract

The utility model relates to heat exchange equipment technical field, and disclose air separation device liquid oxygen storage tank oxygen recovery device, including air separation body, the inner wall connection of air separation body has upper baffle, the inner wall connection of air separation body has lower baffle, the inner chamber of air separation body is equipped with heat exchanger, the side of air separation body is equipped with liquid oxygen storage tank, the top of liquid oxygen storage tank is connected with oxygen pipe, the inner wall of oxygen pipe is equipped with oxygen pump, the outer wall of oxygen pipe is connected with oxygen recovery ware, the other end of oxygen recovery ware away from oxygen pipe is connected with heat exchanger, this air separation device liquid oxygen storage tank oxygen recovery device, through the mutual cooperation of oxygen pump and liquid oxygen storage tank, oxygen recovery ware, heat exchanger on the device, to make oxygen pump on the device accelerate gas oxygen to enter the inner chamber of heat exchanger, and carry out heat exchange work under the action of heat exchanger cooperation air separation body.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange equipment technical field, specifically air separation unit liquid oxygen storage tank oxygen recovery device. BACKGROUND

[0002] Air separation unit is used to separate the components of air, respectively producing oxygen, nitrogen, argon and other gases of air components; Liquid oxygen has the characteristics of high density and low temperature, and has advantages in storage and transportation; Air separation unit, liquid oxygen and oxygen recovery device play an important role in industrial production; By continuously optimizing and improving these technologies and equipment, we can better utilize the resources in the air and achieve sustainable development.

[0003] The existing air separation unit liquid oxygen storage tank oxygen recovery device can refer to the Chinese utility model patent with the authorization announcement number CN205938527U, which discloses an air separation unit liquid oxygen storage tank oxygen recovery device, which comprises a shell, a first partition plate, a second partition plate and a heat exchanger are arranged in the shell, the heat exchanger is provided with an oxygen channel and a nitrogen channel; The upper part of the shell is provided with an oxygen inlet, a liquid nitrogen inlet and a nitrogen outlet, and the lower part of the shell is provided with a liquid oxygen outlet; The oxygen inlet and the liquid oxygen outlet are communicated with the oxygen channel of the heat exchanger, the liquid nitrogen inlet and the nitrogen outlet are communicated with the nitrogen channel of the heat exchanger, the liquid oxygen outlet of the shell is communicated with the liquid oxygen storage tank of the air separation unit, and the oxygen inlet of the shell is communicated with the liquid oxygen storage tank of the air separation unit.

[0004] The above-mentioned device in use, the existing device in liquid oxygen storage tank and the environment heat exchange, part of the liquid oxygen storage tank of liquid oxygen gasification, gasification after oxygen enters the oxygen channel of the heat exchanger through the oxygen inlet, but in the process of liquid oxygen gasification in the liquid oxygen storage tank, because of the influence of the environment, the flow speed of the gas oxygen needs to be accelerated, and in the process of heat exchange of gas oxygen, the flow rate of liquid nitrogen needs to be accelerated synchronously, so that the liquid nitrogen in the air separation unit can accelerate the heat exchange of gas oxygen, and the device can cope with the sudden situation, therefore, a air separation unit liquid oxygen storage tank oxygen recovery device solving the above problems is needed. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the air separation unit liquid oxygen storage tank oxygen recovery device has the advantages of accelerating transportation and accelerating cooling, and solves the problems raised in the above background technology.

[0006] The utility model provides following technical scheme: air separation device liquid oxygen storage tank oxygen recovery device, including air separation body, the inner wall connection of air separation body has upper baffle, the inner wall connection of air separation body has lower baffle, the inner chamber of air separation body is equipped with heat exchanger, the side of air separation body is equipped with liquid oxygen storage tank, the top of liquid oxygen storage tank is connected with oxygen pipe, the inner wall of oxygen pipe is equipped with oxygen pump, the outer wall of oxygen pipe is connected with oxygen recovery ware, the other end of oxygen recovery ware away from oxygen pipe is connected with heat exchanger, the bottom of heat exchanger is connected with liquid oxygen pipe, the outer wall of liquid oxygen pipe is connected with liquid oxygen recovery ware, the outer wall of liquid oxygen recovery ware is connected with delivery pipe, the side of air separation body is equipped with liquid nitrogen storage tank, the outer wall of liquid nitrogen storage tank is connected with liquid nitrogen pipe, the other end of liquid nitrogen pipe away from liquid nitrogen storage tank is connected with liquid nitrogen recovery ware, the inner wall mounting of air separation body has gas nitrogen pump, the outer wall of air separation body is connected with output pipe, the outer wall mounting of output pipe has rotary disc, the bottom of rotary disc is connected with butterfly valve, the outer wall of output pipe is connected with nitrogen recovery ware.

[0007] As a preferred technical scheme of the utility model, the outer wall of the rotary disc is connected with an extension rod, and the extension rod passes through the inner wall of the output pipe and is connected with the butterfly valve.

[0008] As a preferred technical scheme of the utility model, the upper baffle and the lower baffle are arranged as a heat exchange cavity, and the heat exchanger is arranged between the upper baffle and the lower baffle.

[0009] As a preferred technical scheme of the utility model, the oxygen pump is in communication with the inner cavities of the oxygen pipe and the oxygen recovery ware, and the oxygen pump pumps the inner cavity of the oxygen pipe.

[0010] As a preferred technical scheme of the utility model, the outer wall of the air separation body is provided with a through hole, and the through hole and the gas nitrogen pump and the output pipe are located on the same horizontal line.

[0011] As a preferred technical scheme of the utility model, the outer wall of the air separation body is provided with a control screen, and the control screen is electrically connected with the oxygen pump and the gas nitrogen pump.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1、The air separation device liquid oxygen storage tank oxygen recovery device, through the mutual cooperation of the oxygen pump on the device and the liquid oxygen storage tank, the oxygen recovery ware, the heat exchanger, makes the oxygen pump on the device accelerate rotation, pumps the gasified liquid oxygen in the inner cavity of the liquid oxygen storage tank, accelerates through the oxygen recovery ware and enters the inner cavity of the heat exchanger, so that the oxygen pump on the device accelerates oxygen into the inner cavity of the heat exchanger, and carries out heat exchange work under the action of the heat exchanger and the air separation body.

[0014] 2、 the oxygen recovery device in the liquid oxygen tank of the air separation device, through the mutual cooperation of the gas nitrogen extraction motor on the device and the liquid nitrogen storage tank, the liquid nitrogen pipe, and the liquid nitrogen recovery device, when the rotating speed of the gas nitrogen extraction motor on the device is accelerated, the flow speed of the liquid nitrogen in the heat exchange cavity in the air separation body is accelerated, and in the acceleration process, the flowing gas oxygen in the inner cavity of the heat exchanger is accelerated to cool, and when the gas nitrogen is accelerated to enter the inner cavity of the nitrogen oxygen recovery device, the negative pressure of the heat exchange cavity will also drive the liquid nitrogen in the inner cavity of the liquid nitrogen storage tank and the liquid nitrogen recovery device to flow. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a three-dimensional sectional structure schematic view of the utility model;

[0017] Figure 3 It is a three-dimensional sectional structure schematic view of the utility model; Figure 2 It is an enlarged schematic view of structure A in the utility model;

[0018] Figure 4 It is an enlarged schematic view of structure B in the utility model; Figure 2 It is an enlarged schematic view of structure B in the utility model.

[0019] In the drawing: 1, air separation body; 2, upper baffle; 3, lower baffle; 4, heat exchanger; 5, liquid oxygen storage tank; 6, oxygen pipe; 7, oxygen extraction motor; 8, oxygen recovery device; 9, liquid oxygen pipe; 10, liquid oxygen recovery device; 11, conveying pipe; 12, liquid nitrogen storage tank; 13, liquid nitrogen pipe; 14, liquid nitrogen recovery device; 15, gas nitrogen extraction motor; 16, output pipe; 17, rotary disc; 18, butterfly valve; 19, nitrogen oxygen recovery device; 20, control screen. DETAILED DESCRIPTION

[0020] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4The oxygen recovery device in the liquid oxygen storage tank of the air separation device comprises an air separation body 1, an upper partition plate 2 connected to the inner wall of the air separation body 1, a lower partition plate 3 connected to the inner wall of the air separation body 1, a heat exchanger 4 installed in the inner cavity of the air separation body 1, a liquid oxygen storage tank 5 arranged on the side of the air separation body 1, an oxygen pipe 6 connected to the top of the liquid oxygen storage tank 5, an oxygen pump 7 arranged on the inner wall of the oxygen pipe 6, an oxygen recovery device 8 connected to the outer wall of the oxygen pipe 6, the heat exchanger 4 connected to the other end of the oxygen recovery device 8 away from the oxygen pipe 6, a liquid oxygen pipe 9 connected to the bottom of the heat exchanger 4, a liquid oxygen recovery device 10 connected to the outer wall of the liquid oxygen pipe 9, a conveying pipe 11 connected to the outer wall of the liquid oxygen recovery device 10, a liquid nitrogen storage tank 12 arranged on the side of the air separation body 1, a liquid nitrogen pipe 13 connected to the outer wall of the liquid nitrogen storage tank 12, a liquid nitrogen recovery device 14 connected to the other end of the liquid nitrogen pipe 13 away from the liquid nitrogen storage tank 12, an air nitrogen pump 15 installed on the inner wall of the air separation body 1, an output pipe 16 connected to the outer wall of the air separation body 1, a rotating disc 17 installed on the outer wall of the output pipe 16, a butterfly valve 18 connected to the bottom of the rotating disc 17, and a nitrogen recovery device 19 connected to the outer wall of the output pipe 16.

[0022] In a preferred embodiment, the outer wall of the rotating disc 17 is connected to an extension rod, and the extension rod is connected to the butterfly valve 18 through the inner wall of the output pipe 16. The extension rod connected to the outer wall of the rotating disc 17 on the device makes the rotating disc 17 on the device connected to the butterfly valve 18 through the extension rod, and when the rotating disc 17 is manually controlled to rotate, the butterfly valve 18 in the device is synchronously rotated, so that the butterfly valve 18 can be opened and closed.

[0023] In a preferred embodiment, a heat exchange cavity is arranged between the upper partition plate 2 and the lower partition plate 3, and the heat exchanger 4 is arranged between the upper partition plate 2 and the lower partition plate 3. The heat exchange cavity arranged between the upper partition plate 2 and the lower partition plate 3 on the device makes the liquid nitrogen flowing out of the liquid nitrogen recovery device 14 on the device enter the heat exchange cavity, and the heat exchange cavity is wrapped with the liquid nitrogen to exchange heat with the heat exchanger 4, so that the heat exchanger 4 on the device is cooled and condensed by the temperature of the liquid nitrogen when transmitting oxygen.

[0024] In a preferred embodiment, the oxygen pump 7 is connected to the inner cavity of the oxygen pipe 6 and the oxygen recovery device 8, and the oxygen pump 7 pumps the inner cavity of the oxygen pipe 6, and the oxygen pump 7 on the device is connected to the inner cavity of the oxygen pipe 6 and the oxygen recovery device 8, so that the oxygen pump 7 on the device is installed in the middle section of the oxygen pipe 6, and the flow rate of the inner cavity of the oxygen pipe 6 can be controlled under the action of the oxygen pump 7, so that the rate of oxygen entering the inner cavity of the oxygen recovery device 8 is controlled.

[0025] In a preferred embodiment, the outer wall of the air separation body 1 is provided with a through hole, and the through hole is located on the same horizontal line as the gas nitrogen pump 15 and the output pipe 16, and the through hole is provided on the outer wall of the air separation body 1 on the device, so that the inner wall of the air separation body 1 on the device discharges liquid nitrogen to the output pipe 16 through the through hole, so that the liquid nitrogen changes into gaseous nitrogen after heat exchange, and then enters the inner cavity of the nitrogen recovery device 19 for storage.

[0026] In a preferred embodiment, the outer wall of the air separation body 1 is provided with a control screen 20, and the control screen 20 is electrically connected with the oxygen pump 7 and the gas nitrogen pump 15, and the control screen 20 is provided on the outer wall of the air separation body 1 on the device, so that the rotating speed of the oxygen pump 7 and the gas nitrogen pump 15 can be controlled through the control screen 20, so that the flow rate of the oxygen pump 7 and the gas nitrogen pump 15 also changes.

[0027] The working principle is that the oxygen pump 7 on the device is used in cooperation with the liquid oxygen storage tank 5, the oxygen recovery device 8 and the heat exchanger 4, so that when the oxygen pump 7 on the device rotates at high speed, the gaseous liquid oxygen in the inner cavity of the liquid oxygen storage tank 5 is pumped, and the gaseous liquid oxygen accelerates through the oxygen recovery device 8 and enters the inner cavity of the heat exchanger 4, so that the gaseous oxygen on the device accelerates into the inner cavity of the heat exchanger 4, and the heat exchange work is carried out under the cooperation of the heat exchanger 4 and the air separation body 1, and then the gas nitrogen pump 15 on the device is used in cooperation with the liquid nitrogen storage tank 12, the liquid nitrogen pipe 13 and the liquid nitrogen recovery device 14, so that when the gas nitrogen pump 15 on the device rotates at high speed, the flow rate of the heat exchange cavity liquid nitrogen in the inner cavity of the air separation body 1 increases, and the gaseous oxygen flowing in the inner cavity of the heat exchanger 4 is accelerated and cooled, and when the gaseous nitrogen accelerates into the inner cavity of the nitrogen recovery device 19, the negative pressure of the heat exchange cavity also drives the liquid nitrogen in the inner cavities of the liquid nitrogen storage tank 12 and the liquid nitrogen recovery device 14 to flow.

[0028] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An oxygen recovery device in a liquid oxygen tank of an air separation device, comprising an air separation body (1), characterized in that: The inner wall of the air separation body (1) is connected with an upper partition plate (2), the inner wall of the air separation body (1) is connected with a lower partition plate (3), the inner cavity of the air separation body (1) is installed with a heat exchanger (4), the side surface of the air separation body (1) is provided with a liquid oxygen storage tank (5), the top of the liquid oxygen storage tank (5) is connected with an oxygen pipe (6), the inner wall of the oxygen pipe (6) is provided with an oxygen pump (7), the outer wall of the oxygen pipe (6) is connected with an oxygen recovery device (8), the other end of the oxygen recovery device (8) away from the oxygen pipe (6) is connected with the heat exchanger (4), the bottom of the heat exchanger (4) is connected with a liquid oxygen pipe (9), the outer wall of the liquid oxygen pipe (9) is connected with a liquid oxygen recovery device (10), the outer wall of the liquid oxygen recovery device (10) is connected with a conveying pipe (11), the side surface of the air separation body (1) is provided with a liquid nitrogen storage tank (12), the outer wall of the liquid nitrogen storage tank (12) is connected with a liquid nitrogen pipe (13), the other end of the liquid nitrogen pipe (13) away from the liquid nitrogen storage tank (12) is connected with a liquid nitrogen recovery device (14), the inner wall of the air separation body (1) is installed with a nitrogen pump (15), the outer wall of the air separation body (1) is connected with an output pipe (16), the outer wall of the output pipe (16) is installed with a rotating disc (17), the bottom of the rotating disc (17) is connected with a butterfly valve (18), the outer wall of the output pipe (16) is connected with a nitrogen recovery device (19).

2. The apparatus for recovering oxygen from liquid oxygen in a liquid oxygen tank of a space division device according to claim 1, characterized by: The outer wall of the rotating disc (17) is connected with an extension rod, and the extension rod is connected with the butterfly valve (18) through the inner wall of the output pipe (16).

3. The apparatus for recovering oxygen from liquid oxygen in a liquid oxygen tank of a space division device according to claim 1, characterized by: The upper partition plate (2) and the lower partition plate (3) are provided with a heat exchange cavity, and the heat exchanger (4) is arranged between the upper partition plate (2) and the lower partition plate (3).

4. The apparatus for recovering oxygen from liquid oxygen in a liquid oxygen tank of a space division device according to claim 1, characterized by: The oxygen pump (7) is connected with the inner cavities of the oxygen pipe (6) and the oxygen recovery device (8), and the oxygen pump (7) pumps the inner cavity of the oxygen pipe (6).

5. The apparatus for recovering oxygen from liquid oxygen in a liquid oxygen tank of a space division device according to claim 1, characterized by: The outer wall of the air separation body (1) is provided with a through hole, and the through hole is located on the same horizontal line as the nitrogen pump (15) and the output pipe (16).

6. The apparatus for recovering oxygen from liquid oxygen in a liquid oxygen tank of a space division device according to claim 1, characterized by: The outer wall of the air separation body (1) is installed with a control screen (20), and the control screen (20) is electrically connected with the oxygen pump (7) and the nitrogen pump (15).

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