Dry ice manufacturing device, exhaust device and exhaust method for dry ice manufacturing device

Abstract

The dry ice production device includes an ice making cavity (1), an ice ejection valve (2) arranged at the end of a liquid inlet pipe (4) so ​​as to open a liquid outlet (5) to eject carbon dioxide liquid into the ice making cavity (1), an exhaust valve (3) arranged between the exhaust port (6) and the liquid outlet (5) so as to connect the liquid outlet (5) to the atmosphere via the exhaust port (6), and a liquid inlet pipe (4). In the dry ice production device, exhausting through the liquid outlet (5) allows the carbon dioxide gas remaining in the cavity during the dry ice production process to be discharged.

Description

[Technical Field]

[0001] The present invention relates to a dry ice molding and manufacturing device, and more particularly to an exhaust device in a dry ice manufacturing process. [Background technology]

[0002] In the conventional dry ice production method, carbon dioxide liquid is decompressed from a storage tank through a pipe and a solenoid valve, enters the dry ice compression cavity, and is compressed into a block. The opening and closing of the solenoid valve is set according to the compression time of the mold, and the open and closed times of the solenoid valve are controlled by a PLC. As a result, a large amount of carbon dioxide gas cannot be separated from the solid dry ice and remains in the mold, causing irregular release of carbon dioxide gas on site, resulting in a large waste of refrigeration, and when the carbon dioxide liquid is decompressed to normal pressure, the conversion rate of dry ice is too low.

[0003] 1 and 2, in conventional dry ice production equipment, a window 7 is provided on the outer wall of the ice-making cavity to allow residual carbon dioxide gas to escape, and this window 7 is filled with a low-density material, allowing the carbon dioxide gas to escape through the voids in the low-density material. However, during the ice-making process, some of the carbon dioxide particles in the ice-making cavity are squeezed out into the cavity, forming dry ice blocks 8. Furthermore, a large number of carbon dioxide particles 9 adhere to the voids in the low-density material of the window 7, blocking the voids in the low-density material. This prevents the carbon dioxide gas 10 from escaping normally, resulting in air bursts when the dry ice is squeezed out of the cavity. To prevent this, the dry ice molding cavity cannot be designed to be large, making it impossible to produce large blocks of dry ice. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem to be solved by the present invention is to provide a dry ice production device, an exhaust device and an exhaust method for dry ice production that can exhaust carbon dioxide gas that has become clogged in a cavity during the dry ice production process. [Means for solving the problem]

[0005] The design concept of the present invention is to provide a gas flow path as a dry ice injection passage within the dry ice molding cavity, and after the dry ice injection is completed, the liquid outlet is switched to a gas discharge passage so that residual carbon dioxide gas is discharged from the liquid outlet when dry ice is made in the cavity. The present invention provides a method for evacuating a dry ice production apparatus, 1) during ice making, the liquid outlet and the liquid inlet pipe are connected to each other, and carbon dioxide liquid is injected into the ice making cavity through the liquid outlet; 2) When ice making is completed, the liquid outlet and the liquid inlet pipe are blocked, and the liquid outlet is connected to the outside air.

[0006] In order to solve the above technical problems, the present invention provides a dry ice making device, comprising: an ice making cavity; an ice injection valve provided at the end of a liquid inlet line, for opening a liquid outlet to inject carbon dioxide liquid into the ice making cavity; The device is provided with an exhaust valve and a liquid inlet pipe provided between the exhaust port and the liquid outlet so that the liquid outlet communicates with the outside air via the exhaust port. In a preferred embodiment, there is at least one ice ejection valve. In a preferred embodiment, the ice outlet valve and exhaust valve are connected to the inlet line through a three-way pipe.

[0007] In a preferred embodiment, a first inlet of the three-way pipe is connected to the liquid inlet line, a second inlet is connected to the exhaust valve, an outlet of the three-way pipe is the liquid outlet, and the ice injection valve is provided between the first inlet and the liquid outlet. In a preferred embodiment, during ice making, the ice ejection valve communicates the first inlet with the liquid outlet. In a preferred embodiment, when ice making is completed, the ice ejection valve blocks the first inlet from the liquid outlet, and the exhaust valve connects the liquid outlet to the exhaust port. The present invention further provides an exhaust device for a dry ice manufacturing apparatus, in which a liquid outlet for ejecting carbon dioxide liquid is in communication with the outside air via an exhaust valve. In a preferred embodiment, the liquid outlet and exhaust valves are connected to the liquid inlet line via a three-way pipe.

[0008] In a preferred embodiment, a first inlet of the three-way valve is connected to the liquid inlet line, a second inlet is connected to the exhaust valve, an outlet of the three-way valve is the liquid outlet, and an ice ejection valve is disposed between the first inlet and the liquid outlet. [Effects of the Invention]

[0009] The technical aspects of the present invention have the following beneficial effects compared with the prior art:

[0010] The present invention provides a dry ice production device, an exhaust device for a dry ice production device, and an exhaust method, which are provided with an exhaust valve and an exhaust passage. After dry ice production is completed, the exhaust valve is opened to connect the liquid outlet to the outside air, allowing high-pressure carbon dioxide gas remaining in the ice making chamber due to carbon dioxide particles clogging the exhaust window to communicate with the outside air, thereby discharging the remaining gas. In this method, by using the liquid outlet for releasing carbon dioxide liquid during the ice making process as the inlet of the exhaust passage, even if the carbon dioxide liquid is closed, new dry ice particles are not generated, and therefore the liquid outlet does not clog. Using the liquid outlet as the inlet of the exhaust passage reliably prevents clogging of the exhaust passage. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram of a conventional dry ice production device. [Figure 2] FIG. 1 is another schematic diagram of a conventional dry ice production device. [Figure 3] FIG. 1 is a front view of a preferred embodiment of the present invention. [Figure 4] 1 is a side view of a preferred embodiment of the present invention; [Figure 5] 1 is a schematic diagram showing a three-way pipe connection according to a preferred embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0012] The technical aspects of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. The above embodiments are only some of the embodiments of the present invention and do not describe all the embodiments. Of course, all other embodiments that can be implemented by those skilled in the art based on the embodiments of the present invention without any creative efforts are included in the protection scope of the present invention.

[0013] In describing the present invention, orientations or positional relationships indicated by terms such as "upper," "lower," "inner," "outer," "top / bottom," etc. are based on orientations or positional relationships shown in the drawings, are shown merely to facilitate and simplify the description of the present invention, and do not express or imply that the devices or elements referred to must have a particular location, be configured, or operate in a particular location, and therefore should not be understood as limitations of the present invention. Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be understood as expressing or implying relative importance.

[0014] In describing the present invention, unless otherwise specified or limited, terms such as "mounting," "installation," "setting / connecting," and "connection" should be interpreted broadly. For example, "connection" may refer to a wall-mounted connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, or an internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the actual situation.

[0015] 3 to 5, this embodiment provides a dry ice making device, which includes an ice making cavity 1, two ice outlet valves 2, an exhaust valve 3, and a liquid inlet pipe 4, and the ice outlet valve 2 is disposed at the end of the liquid inlet pipe 4 so as to open a liquid outlet 5 to inject carbon dioxide liquid into the ice making cavity 1. The exhaust valve 3 is provided between the exhaust port 6 and the liquid outlet 5 so that the liquid outlet 5 communicates with the outside air via the exhaust port 6 .

[0016] The dry ice production device is provided with an exhaust valve 3, and by opening the exhaust valve 3 after dry ice production is completed, the high-pressure carbon dioxide gas remaining in the ice-making cavity 1 is connected to the outside air, thereby discharging the remaining gas. The number of ice ejection valves 2 is arbitrary and is not limited to two as in this embodiment.

[0017] To achieve the above-mentioned pipeline arrangement, the ice ejection valve 2 and the exhaust valve 3 are connected to the liquid inlet pipeline 4 via a three-way pipe. Specifically, the first inlet of the three-way pipe is connected to the liquid inlet pipeline 4, the second inlet is connected to the exhaust valve 3, and the outlet of the three-way pipe is the liquid outlet 5, and the ice ejection valve 2 is disposed between the first inlet and the liquid outlet 5.

[0018] The ice-making cavity of the present invention is a conventional technology, and as shown in Figures 1 and 2, a window 7 is provided on the outer wall of the cavity 1, and the window 7 is filled with a lattice or low-density material, and carbon dioxide gas is released through the holes in the low-density material or the voids in the lattice.

[0019] During ice making, the ice ejection valve 2 connects the first inlet to the liquid outlet 5. Carbon dioxide liquid from the inlet pipe 4 is ejected from the liquid outlet 5, and the ice-making process proceeds normally. Dry ice particles and carbon dioxide gas are generated within the ice-making cavity 1. Initially, the carbon dioxide gas is expelled through the window 7 of the cavity. As the dry ice particles block the exhaust passage, which is the lattice and gaps of the window 7, the carbon dioxide gas accumulates within the cavity. When ice making is complete, the ice ejection valve 2 closes the first inlet to the liquid outlet 5, stopping the ejection of carbon dioxide liquid. It also opens the exhaust valve 3 to connect the liquid outlet 5 to the exhaust port 6. As a result, high-pressure carbon dioxide gas 10 is expelled from the exhaust port 6 during the process of dry ice being formed by the piston within the ice-making cavity 1. This exhaust device uses the liquid outlet 5, which constantly ejects carbon dioxide liquid during the ice-making process, as the inlet of the exhaust passage, so the liquid outlet 5 is not clogged with carbon dioxide particles. By using the liquid outlet 5 as the inlet of the exhaust passage after the discharge has stopped, it is possible to reliably prevent the exhaust passage from being blocked. The above-mentioned evacuation method for dry ice production includes the following steps:

[0020] 1) When making ice, the liquid outlet 5 and the liquid inlet pipe 4 are connected, and carbon dioxide liquid is sprayed into the ice making cavity 1 through the liquid outlet 5. Some of the carbon dioxide liquid becomes granular, and some of it is gasified, and the carbon dioxide gas is discharged from the window 7. 2) When ice making is completed, the liquid outlet 5 and the liquid inlet pipe 4 are blocked, and the liquid outlet 5 is connected to the outside air. 3) The piston in the cavity is pushed to extrude the carbon dioxide solid, and the carbon dioxide gas in the cavity is released from the liquid outlet.

[0021] The above description is merely a preferred embodiment of the present invention, and the design concept of the present invention is not limited thereto. Any non-essential changes made by a person skilled in the art to the present invention using such concept within the technical scope of the present invention will be considered as an infringement of the scope of protection of the present invention. [Industrial Applicability]

[0022] The present invention relates to a dry ice making device that includes an ice making cavity, an ice ejection valve provided at the end of a liquid inlet conduit so as to open a liquid outlet to inject carbon dioxide liquid into the ice making cavity, an exhaust valve provided between the exhaust port and the liquid outlet so that the liquid outlet is in communication with the outside air via an exhaust port, and a liquid inlet conduit. The dry ice making device has industrial applicability because it can exhaust carbon dioxide gas remaining in the cavity during the dry ice making process by providing a liquid outlet for exhaust.

Claims

1. Ice making cavity and an ice ejection valve provided at the end of the liquid inlet for opening the liquid outlet to eject carbon dioxide liquid into the ice-making cavity; an exhaust valve provided between the exhaust port and the liquid outlet so that the liquid outlet communicates with the outside air via the exhaust port; a liquid inlet line; Equipped with The dry ice production device is characterized in that the ice ejection valve and the exhaust valve are connected to the liquid inlet line through a three-way pipe.

2. 2. The dry ice producing device according to claim 1, wherein the ice ejection valve is at least one.

3. 2. The dry ice making apparatus of claim 1, wherein a first inlet of the three-way pipe is connected to the liquid inlet line, a second inlet is connected to the exhaust valve, an outlet of the three-way pipe is the liquid outlet, and the ice ejection valve is provided between the first inlet and the liquid outlet.

4. 4. The dry ice making device according to claim 1, wherein a window is provided on an outer wall of the ice making cavity, and the window is filled with a low-density material having voids.

5. 4. The dry ice making device according to claim 1, wherein a window is provided on an outer wall of the ice making cavity, and a lattice is provided on the window.

6. The liquid outlet for injecting carbon dioxide liquid is an exhaust device of the dry ice manufacturing apparatus that communicates with the outside air through an exhaust valve, The ice making machine includes an ice making cavity, an ice ejection valve installed in a liquid inlet pipe, and a liquid inlet pipe connected to an exhaust port, the exhaust valve being installed between the exhaust port and the liquid outlet; 1. An exhaust device for a dry ice manufacturing apparatus, wherein the liquid outlet and the exhaust valve are connected to a liquid inlet line via a three-way pipe.

7. 7. The exhaust device of claim 6, wherein the first inlet of the three-way pipe is connected to the liquid inlet line, the second inlet is connected to the exhaust valve, the outlet of the three-way pipe is the liquid outlet, and the ice ejection valve is located between the first inlet and the liquid outlet.

8. 7. The exhaust device for a dry ice making apparatus according to claim 6, wherein a window portion is provided on an outer wall of the ice making cavity, and the window portion is filled with a low-density material having voids.

9. 7. The exhaust device of claim 6, wherein the ice making cavity has an outer wall provided with a window, and the window is provided with a lattice.

10. In the dry ice production apparatus, a further branch pipe is connected to the carbon dioxide liquid discharge pipe and communicates with the atmosphere through an exhaust valve; During ice making, communicating the liquid outlet with the liquid inlet conduit and injecting carbon dioxide liquid into the ice making cavity through the liquid outlet; When ice production is completed, the liquid outlet and the liquid inlet pipe are blocked, the liquid outlet is connected to the outside air, and the piston in the cavity is pushed to compress and mold the carbon dioxide solid.

11. 11. The exhaust method for a dry ice making apparatus according to claim 10, wherein the carbon dioxide gas is exhausted through a window in the cavity during ice making.

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