Liquid oxygen vaporization cold energy collection and utilization device

Abstract

The utility model discloses a liquid oxygen vaporization cold energy collection and utilization device, which relates to the technical field of cold energy collection and comprises a heat preservation box body, an air inlet and an air outlet are fixedly arranged on the heat preservation box body, a heat exchanger is fixedly arranged in the heat preservation box body, heat exchange fins are fixedly arranged on the heat exchanger, and a recovery mechanism is fixedly arranged at the bottom of the heat preservation box body. The recycling mechanism comprises a receiving hopper fixedly installed at the bottom of the heat preservation box body, an extrusion pipe is fixedly installed at the bottom of the receiving hopper, a conical head is fixedly installed at one end of the extrusion pipe, a telescopic column is movably installed at the other end of the extrusion pipe, and an extrusion block is fixedly installed at the tail end of the telescopic column. And a mounting frame is fixedly mounted on the extrusion pipe. According to the liquid oxygen vaporization cold energy collecting and utilizing device, the heat preservation box body is matched with the heat exchanger, dry ice can be made through the cold energy generated by liquid oxygen vaporization, and the made dry ice can be extruded and formed through the recycling mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold energy collection technical field, concretely is a kind of liquid oxygen vaporization cold energy collection and utilization device. BACKGROUND

[0002] Liquid oxygen vaporization is the process of converting liquid oxygen (LOX) into gaseous oxygen, widely used in medical and industrial fields. Liquid oxygen is stored at extremely low temperature (-183℃), and through the heating of vaporizer or heat exchange with the environment, its temperature is raised and converted into gaseous oxygen. This process is usually carried out under high pressure to ensure the stability and purity of gas output. Liquid oxygen vaporization equipment usually includes heat exchanger, vaporizer and control system to ensure efficient and safe completion of the phase change process. Due to the strong oxidizing property and low temperature characteristics of liquid oxygen, strict safety regulations must be followed during operation to prevent leakage and explosion risks.

[0003] During the conversion of liquid oxygen into gaseous oxygen, a significant endothermic reaction occurs, which results in a decrease in the temperature of the surrounding environment. Currently, the vaporizer we use exchanges heat with air through a heat exchanger, which raises the temperature of the liquid oxygen and thus achieves its vaporization. However, during this liquid oxygen vaporization process, a large amount of cold energy is not effectively recovered and utilized. SUMMARY

[0004] The purpose of the present utility model is to provide a liquid oxygen vaporization cold energy collection and utilization device to solve the problem of cold energy recovery in the prior art.

[0005] To achieve the above-mentioned purpose, the present utility model provides the following technical solution: a liquid oxygen vaporization cold energy collection and utilization device, comprising an insulation box, an air inlet and an air outlet fixedly installed on the insulation box, a heat exchanger fixedly installed inside the insulation box, heat exchange fins fixedly installed on the heat exchanger, a recovery mechanism fixedly installed at the bottom of the insulation box, the recovery mechanism comprising a receiving hopper fixedly installed at the bottom of the insulation box, an extrusion pipe fixedly installed at the bottom of the receiving hopper, a conical head fixedly installed at one end of the extrusion pipe, a telescopic column movably installed at the other end of the extrusion pipe, an extrusion block fixedly installed at the end of the telescopic column, and a collection mechanism provided on the receiving hopper.

[0006] Preferably, a through hole is formed in the receiving hopper, an installation bracket is fixedly installed on the extrusion pipe, an oil cylinder is fixedly installed on the installation bracket, and the output end of the oil cylinder is fixedly installed on the telescopic column.

[0007] Preferably, an active hole is formed at the other end of the extrusion pipe, and the telescopic column is movably installed on the extrusion pipe through the active hole.

[0008] Preferably, the oil cylinder is fixedly installed on one side of the extrusion pipe through a mounting frame, one end of the telescopic column is fixedly installed on the output end of the oil cylinder, and the other end of the telescopic column is fixedly installed on the extrusion block.

[0009] Preferably, the collecting mechanism comprises a first cylinder body fixedly installed on the outer wall of the receiving hopper and a collecting flap rotatably installed on the inner wall of the receiving hopper, the first cylinder body is internally provided with a reset spring, a first piston is movably installed in the first cylinder body, a top rod is fixedly installed on the first piston, a second cylinder body is fixedly installed on the extrusion pipe, a second piston is fixedly installed on the telescopic column and aligned with the second cylinder body, and a communication pipe is arranged between the first cylinder body and the second cylinder body.

[0010] Preferably, the top rod extends into the receiving hopper through a through hole, the lower end of the collecting flap is provided with a hinge, and the collecting flap is rotatably installed in the receiving hopper through the hinge.

[0011] Preferably, one end of the reset spring is connected to the bottom of the first cylinder body, the other end of the reset spring is connected to the first piston, and the first cylinder body and the second cylinder body are communicated through the communication pipe.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. In the heat exchange process of liquid oxygen and carbon dioxide, the liquid oxygen is converted into a gaseous state through phase change. The phase change process is accompanied by significant heat absorption effect, which causes the temperature of the carbon dioxide in the heat preservation box to decrease to the sublimation point of the carbon dioxide, and then the carbon dioxide is phase changed into solid dry ice. The formed dry ice particles are then deposited in the extrusion pipe at the bottom of the receiving hopper. Through accurate control of the telescopic action of the oil cylinder, the telescopic column can drive the extrusion block to reciprocate, so that the dry ice is extruded. During the extrusion process, the dry ice is discharged through the conical head, and the cold energy released during the vaporization of the liquid oxygen is fully utilized to prepare the dry ice.

[0014] 2. In the forward movement process of the telescopic column, the second piston is synchronously driven to move towards the inside of the second cylinder body, so that the gas in the second cylinder body is compressed and extruded into the first cylinder body, causing the first piston to move forward. Subsequently, the forward movement of the first piston drives the top rod into the receiving hopper, the top rod rises in the receiving hopper, pushes the upper end of the collecting flap, and increases the inclination angle of the flap, so as to effectively collect the dry ice in the receiving hopper into the extrusion pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the inside of the heat preservation box of the utility model;

[0017] Figure 3 It is a local structure schematic view of the utility model;

[0018] Figure 4 It is a recycling mechanism schematic view of the utility model;

[0019] Figure 5 It is a collection mechanism schematic view of the utility model.

[0020] Marked number in drawing: 1, heat preservation box body;2, air inlet;3, exhaust port;4, heat exchanger;5, recycling mechanism;501, receiving hopper;502, through hole;503, conical head;504, extrusion pipe;505, extrusion block;506, mounting bracket;507, telescopic column;508, oil cylinder;6, collection mechanism;601, collection flap;602, ejector rod;603, first cylinder body;604, first piston;605, return spring;606, communication pipe;607, second piston;608, second cylinder body;7, heat exchange fin. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely 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. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] As Figure 1 and Figure 2 The utility model provides a kind of liquid oxygen vaporization cold energy collection and utilization device's technical scheme, including heat preservation box body 1, air inlet 2 and exhaust port 3 are fixedly installed on heat preservation box body 1, heat exchanger 4 is fixedly installed in heat preservation box body 1, heat exchange fin 7 is fixedly installed on heat exchanger 4, recycling mechanism 5 is fixedly installed on the bottom of heat preservation box body 1, receiving hopper 501 is equipped with collection mechanism 6, heat preservation box body 1 and heat exchanger 4 cooperation, can be used to make dry ice with the cold energy of liquid oxygen gasification, and recycling mechanism 5 can be extruded into shape with the dry ice made.

[0023] As Figure 2 , Figure 3 and Figure 4As shown, the recovery mechanism 5 includes a receiving hopper 501 fixedly installed at the bottom of the insulation box 1, a pressing pipe 504 fixedly installed at the bottom of the receiving hopper 501, a tapered head 503 fixedly installed at one end of the pressing pipe 504, a telescopic column 507 movably installed at the other end of the pressing pipe 504, a pressing block 505 fixedly installed at the end of the telescopic column 507, a through hole 502 formed in the receiving hopper 501, a mounting bracket 506 fixedly installed on the pressing pipe 504, an oil cylinder 508 fixedly installed on the mounting bracket 506, and an output end of the oil cylinder 508 fixedly installed on the telescopic column 507. An active hole is formed in the other end of the pressing pipe 504, and the telescopic column 507 is movably installed in the active hole of the pressing pipe 504.

[0024] Specifically, through the heat exchange process between liquid oxygen and carbon dioxide, the liquid oxygen can be converted from liquid state to gaseous state. In this conversion process, the liquid oxygen absorbs the heat of the surrounding environment, causing the carbon dioxide in the insulation box 1 to undergo desublimation and form dry ice. The dry ice formed by desublimation will gradually accumulate and eventually fall into the pressing pipe 504 located at the bottom of the receiving hopper 501. To further process the dry ice, the telescopic action of the oil cylinder 508 can be controlled. When the oil cylinder 508 telescopes, the telescopic column 507 moves, thereby driving the pressing block 505 to move back and forth in the pressing pipe 504. The back-and-forth movement of the pressing block 505 can effectively extrude the dry ice through the tapered head 503 and discharge it. Thus, the cold energy of the vaporization of liquid oxygen is used to make dry ice.

[0025] As shown in Figure 2 , Figure 3 and Figure 5 , the collection mechanism 6 includes a first cylinder body 603 fixedly installed on the outer wall of the receiving hopper 501 and a collection flap 601 rotatably installed on the inner wall of the receiving hopper 501. The first cylinder body 603 is provided with a reset spring 605 and a first piston 604 movably installed therein. The first piston 604 is fixedly installed with a top rod 602. The pressing pipe 504 is fixedly installed with a second cylinder body 608, and the telescopic column 507 is fixedly installed with a second piston 607. The second piston 607 is aligned with the second cylinder body 608. The first cylinder body 603 and the second cylinder body 608 are provided with a communication pipe 606. The top rod 602 extends into the receiving hopper 501 through the through hole 502. The collection flap 601 is rotatably installed in the receiving hopper 501 through a hinge provided at the lower end of the collection flap 601.

[0026] Specifically, during the forward movement of the telescopic column 507, the second piston 607 is pushed to move to the inside of the second cylinder body 608, causing the gas in the second cylinder body 608 to be squeezed into the first cylinder body 603. With the transfer of the gas, the first piston 604 also moves forward. When the first piston 604 moves forward, it further drives the top rod 602 to enter the inside of the receiving hopper 501. Once the top rod 602 enters the receiving hopper 501, it lifts the upper end portion of the gathering flap 601, thereby increasing the inclination angle of the gathering flap 601. Such inclination angle change greatly facilitates the gathering of dry ice in the receiving hopper 501 into the extrusion pipe 504, thereby improving the efficiency of the entire system.

[0027] Working principle: when in use, carbon dioxide enters the heat preservation box body 1 through the gas inlet 2, and when the carbon dioxide enters the heat preservation box body 1, the liquid oxygen can pass through the heat exchanger 4 to exchange heat with the carbon dioxide, so that the liquid oxygen is converted into gas. In the process of converting the liquid oxygen into gas, the surrounding heat is absorbed, so that the carbon dioxide in the heat preservation box body 1 sublimes into dry ice. The sublimed dry ice falls into the extrusion pipe 504 at the bottom of the receiving hopper 501, and then the oil cylinder 508 can be controlled to stretch and retract. During the stretching and retracting process of the oil cylinder 508, the telescopic column 507 drives the extrusion block 505 to move forward and backward, so as to extrude the dry ice to be discharged through the conical head 503, thereby using the cold quantity of the vaporization of the liquid oxygen to make dry ice. During the forward movement of the telescopic column 507, the second piston 607 is also driven to move to the inside of the second cylinder body 608, so as to extrude the gas in the second cylinder body 608 into the first cylinder body 603, so that the first piston 604 moves forward. After the first piston 604 moves forward, it drives the top rod 602 to enter the receiving hopper 501. The top rod 602 entering the receiving hopper 501 lifts the upper end of the gathering flap 601, so that the inclination angle of the gathering flap 601 is increased, facilitating the gathering of the dry ice in the receiving hopper 501 into the extrusion pipe 504.

[0028] It is obvious to 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, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and 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 involved.

Claims

1. A liquid oxygen vaporization cold energy collection utilization device, comprising a heat preservation box body (1), an air inlet (2) and an air outlet (3) are fixedly installed on the heat preservation box body (1), characterized in that: The heat exchanger (4) is fixedly installed in the heat preservation box (1), the heat exchange fins (7) are fixedly installed on the heat exchanger (4), the recovery mechanism (5) is fixedly installed at the bottom of the heat preservation box (1), the recovery mechanism (5) comprises a receiving hopper (501) fixedly installed at the bottom of the heat preservation box (1), the extrusion pipe (504) is fixedly installed at the bottom of the receiving hopper (501), the tapered head (503) is fixedly installed at one end of the extrusion pipe (504), the telescopic column (507) is movably installed at the other end of the extrusion pipe (504), the extrusion block (505) is fixedly installed at the end of the telescopic column (507), and the collecting mechanism (6) is arranged on the receiving hopper (501).

2. The liquid oxygen boil-off cold energy collection utilization device according to claim 1, characterized in that: The through hole (502) is formed in the receiving hopper (501), the mounting bracket (506) is fixedly installed on the extrusion pipe (504), the oil cylinder (508) is fixedly installed on the mounting bracket (506), and the output end of the oil cylinder (508) is fixedly installed on the telescopic column (507).

3. The liquid oxygen boil-off cold energy collection utilization device according to claim 2, characterized in that: The telescopic column (507) is movably installed on the extrusion pipe (504) through the movable hole.

4. The liquid oxygen boil-off cold energy collection utilization apparatus according to claim 3, characterized by: The oil cylinder (508) is fixedly installed on one side of the extrusion pipe (504) through the mounting bracket (506), one end of the telescopic column (507) is fixedly installed on the output end of the oil cylinder (508), and the other end of the telescopic column (507) is fixedly installed on the extrusion block (505).

5. The liquid oxygen boil-off cold energy collection utilization apparatus according to claim 4, characterized by: The collecting mechanism (6) comprises a first cylinder body (603) fixedly installed on the outer wall of the receiving hopper (501) and a collecting flap (601) rotatably installed on the inner wall of the receiving hopper (501), the reset spring (605) is arranged in the first cylinder body (603), the first piston (604) is movably installed in the first cylinder body (603), the top rod (602) is fixedly installed on the first piston (604), the second cylinder body (608) is fixedly installed on the extrusion pipe (504), the second piston (607) is fixedly installed on the telescopic column (507), the second piston (607) is aligned with the second cylinder body (608), and the communication pipe (606) is arranged between the first cylinder body (603) and the second cylinder body (608).

6. The liquid oxygen boil-off cold energy collection utilization device according to claim 5, characterized in that: The top rod (602) extends into the receiving hopper (501) through the through hole (502), the hinge is arranged at the lower end of the collecting flap (601), and the collecting flap (601) is rotatably installed in the receiving hopper (501) through the hinge.

7. The liquid oxygen boil-off cold energy collection utilization apparatus according to claim 6, characterized by: One end of the reset spring (605) is connected to the bottom of the first cylinder body (603), the other end of the reset spring (605) is connected to the first piston (604), and the first cylinder body (603) and the second cylinder body (608) are communicated through the communication pipe (606).

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