Full-automatic pressure relief safe feeding device for cooling substances
By introducing three-way valves and filter mechanisms into the dry ice machine equipment and combining pressure sensors to control the valve, the problem of poor pressure relief of gaseous carbon dioxide in the dry ice machine cavity is solved, and the conversion rate of dry ice powder and equipment safety are improved.
Patent Information
- Application Number
- CN202423270709.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During the production process of existing dry ice machine equipment, it is difficult to remove the pressure of gaseous carbon dioxide in the cavity, resulting in excessive pressure, easy to damage the mold, and the dry ice powder conversion efficiency is not ideal, posing a safety hazard.
The feeding mechanism including a three-way valve and three connecting mechanisms is adopted, combined with a pressure sensor and a filter mechanism, and efficient throttling and reducing pressure by controlling the valve, ensuring pressure stability, and limiting dry ice in the cavity during pressure relief to prevent dry ice from being discharged with the airflow.
It has achieved efficient energy conservation and emission reduction, improved the conversion rate of dry ice powder, reduced the equipment damage rate, and ensured safety and pressure stability.
Smart Images
Figure CN223216111U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of dry ice machine pressure relief, and in particular relates to a full-automatic pressure relief safety feeding device for cooling materials. Background Art
[0002] The dry ice machine produces dry ice by throttling and decompressing liquid carbon dioxide and then spraying it to form solid carbon dioxide. A barrel-shaped dry ice powder is formed inside the cavity, which is partially hollow. The remaining gaseous carbon dioxide in the hollow part is difficult to decompress. When the dry ice is squeezed, the pressure is easily too high, causing the dry ice to break and the mold to be easily damaged.
[0003] The throttling and pressure reducing valve on the existing equipment is an ordinary copper electromagnetic pulse valve, which sprays dry ice powder into the equipment cavity and uses the copper filter on the inner wall of the cavity to unload the pressure. The pressure unloading is relatively uneven, and the dry ice powder conversion efficiency after pressure reduction is not ideal and it is easy to cause the dangerous situation of the molding cavity bursting. Utility Model Content
[0004] The purpose of the present invention is to provide a fully automatic pressure-relieving and safe feeding device for cooling materials, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a fully automatic pressure-relieving and safe feeding device for cooling materials, comprising: an equipment cavity, a liquid phase pipeline and a gas phase pipeline, a feeding mechanism for feeding is provided between the equipment cavity and the gas phase pipeline and the liquid phase pipeline, the feeding mechanism comprises a three-way valve and three connecting mechanisms installed in parallel on the three-way valve, the three connecting mechanisms are all connected and installed on the equipment cavity, and the three connecting mechanisms are used for feeding, pressure relief and jet cleaning of the equipment cavity.
[0006] Preferably, the three connecting mechanisms respectively include a first control valve, a second control valve and a third control valve. The first control valve, the second control valve and the third control valve are all connected to the three-way valve and the equipment cavity by connecting pipes. The first control valve is used to perform jet cleaning in the equipment cavity, the second control valve is used to load dry ice into the equipment cavity, and the third control valve is used to relieve pressure in the equipment cavity.
[0007] Preferably, one of the connecting pipes is provided with a filtering mechanism connected in series with the third control valve, and the dry ice is confined in the equipment cavity through the filtering mechanism during pressure relief.
[0008] Preferably, the filtering mechanism includes a filter screen cartridge and a three-way pipe fitting, the three-way pipe fitting is connected in series on the connecting pipe, the filter screen cartridge is movably installed inside the end of the three-way pipe fitting away from the connecting pipe, and the end of the three-way pipe fitting away from the connecting pipe is provided with a pushing mechanism, and the pushing mechanism is used to push or pull the filter screen from the three-way pipe fitting into the connecting pipe.
[0009] Preferably, the pushing mechanism includes a plug and a cylinder installed on the outside of the plug, the plug is screwed on the three-way pipe fitting, the telescopic end of the cylinder is connected to one end of the filter screen, and a first sealing gasket for sealing is provided between the plug and the three-way pipe fitting.
[0010] Preferably, a pressure sensor for air pressure detection is also provided on the device cavity, an external threaded interface is provided on the outer wall of the device cavity, one end of the pressure sensor is provided with a mounting seat screwed on the external threaded interface, the pressure sensor extends into the device cavity through the external threaded interface, and a second sealing gasket for sealing is provided between the mounting seat and the external threaded interface.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] (1) The utility model has an additional feeding mechanism, in which a three-way valve and three connecting mechanisms are added. After feeding, the pressure in the equipment cavity is discharged from the feeding hole through the connecting mechanism, thereby achieving efficient energy saving, emission reduction and safety control effects.
[0013] (2) The utility model adds a first control valve, a second control valve, and a third control valve in combination with a pressure sensor, thereby facilitating loading, cleaning, or pressure relief and pressure replenishment in the equipment cavity. The three control valves with improved structures provide efficient instantaneous throttling and pressure reduction, and after loading, the pressure in the cavity is completely relieved instantly through valve control, thereby increasing the conversion rate of liquid carbon dioxide to dry ice powder while ensuring the stability of pressure changes, thereby reducing the damage rate of the equipment.
[0014] (3) The utility model has an additional filtering mechanism, which can prevent the dry ice in the device cavity from being discharged outward with the air flow when the device is depressurized, thereby preventing the amount of dry ice in the device cavity from decreasing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a side view of the utility model;
[0016] Figure 2 It is a front view of the utility model;
[0017] Figure 3 It is a cross-sectional view of the filter mechanism of the utility model;
[0018] Figure 4 This is a schematic diagram of the cooperation between the filter screen cylinder and the tee pipe fitting of the utility model;
[0019] Figure 5 This is a schematic diagram of the cooperation of the pressure sensor, external thread interface and mounting base of the utility model;
[0020] In the figure: 1. Three-way valve; 2. First control valve; 3. Second control valve; 4. Third control valve; 5. Three-way pipe fitting; 6. Cylinder; 7. Plug; 8. Equipment cavity; 9. External thread interface; 10. Mounting seat; 11. Connecting pipe; 12. Liquid phase pipeline; 13. Gas phase pipeline; 14. Filter cylinder; 15. Pressure sensor; 16. First sealing gasket; 17. Second sealing gasket. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] refer to Figure 1-5 As shown, the fully automatic pressure relief safety feeding device for cooling material provided by the utility model includes: an equipment cavity 8, a liquid phase pipeline 12 and a gas phase pipeline 13. A feeding mechanism for feeding is provided between the equipment cavity 8 and the gas phase pipeline 13 and the liquid phase pipeline 12. The feeding mechanism includes a three-way valve 1 and three connecting mechanisms installed in parallel on the three-way valve 1. The three connecting mechanisms are all connected and installed on the equipment cavity 8. The three connecting mechanisms are used for feeding, pressure relief and jet cleaning of the equipment cavity 8. A pressure sensor 15 is provided on the equipment cavity 8.
[0023] Combine Figure 2 As shown, the three connecting mechanisms include a first control valve 2, a second control valve 3 and a third control valve 4, respectively. The first control valve 2, the second control valve 3 and the third control valve 4 are connected to the three-way valve 1 and the equipment cavity 8 by a connecting pipe 11. The first control valve 2 is used for jet cleaning in the equipment cavity 8, the second control valve 3 is used for dry ice loading in the equipment cavity 8, and the third control valve 4 is used for depressurizing the equipment cavity 8.
[0024] As described above, when using the equipment cavity 8, liquid phase pipeline 12, gas phase pipeline 13 and feeding mechanism provided by the present invention, liquid dry ice enters the equipment cavity 8 through the liquid phase pipeline 12, the three-way valve 1, the connecting pipe 11 and the first control valve 2. When the pressure sensor 15 detects that the pressure in the equipment cavity 8 is too high, the third control valve 4 opens to allow the excess gas in the equipment cavity 8 to be discharged outward through the gas phase pipeline 13. When the pressure in the equipment cavity 8 reaches a predetermined threshold, the third control valve 4 closes. When the pressure in the equipment cavity 8 becomes smaller, the third control valve 4 opens to replenish the pressure of the equipment cavity 8 through the gas phase pipeline 13, the three-way valve 1 and the connecting pipe 11. When the equipment cavity 8 needs to be cleaned, the third control valve 4 is normally open, the second control valve 3 is opened, and the external high-pressure gas enters the equipment cavity 8 through the gas phase pipeline 13, the three-way valve 1 and the connecting pipe 11, and the gas and impurities in the equipment cavity 8 are discharged outward through the third control valve 4, the connecting pipe 11, the three-way valve 1 and the gas phase pipeline 13.
[0025] Further, in order to facilitate automatic control of the first control valve 2, the second control valve 3 and the third control valve 4, refer to Figure 1-2 and Figure 5 As shown, the equipment cavity 8 is also provided with a pressure sensor 15 for air pressure detection. An external threaded interface 9 is provided on the outer wall of the equipment cavity 8. One end of the pressure sensor 15 is provided with a mounting seat 10 that is screwed to the external threaded interface 9. The pressure sensor 15 extends into the equipment cavity 8 through the external threaded interface 9. A second sealing gasket 17 for sealing is provided between the mounting seat 10 and the external threaded interface 9. The pressure sensor 15 can be detachably mounted in the equipment cavity 8 through the mounting seat 10, the second sealing gasket 17 and the external threaded interface 9. After removing the mounting seat 10, the pressure sensor 15 can be inspected and repaired. The air pressure in the equipment cavity 8 can be detected through the pressure sensor 15, thereby allowing the first control valve 2, the second control valve 3 and the third control valve 4 to cooperate with each other to perform operations such as loading, pressure relief, pressure replenishment and cleaning of the equipment cavity 8.
[0026] In this utility model, combined with Figure 2-4 As shown, one of the connecting pipes 11 of this embodiment is provided with a filtering mechanism connected in series with the third control valve 4 , and the dry ice is confined in the equipment cavity 8 through the filtering mechanism during pressure relief.
[0027] Combine Figure 2-5 As shown, the filtering mechanism includes a filter screen cartridge 14 and a three-way pipe fitting 5. The three-way pipe fitting 5 is connected in series on the connecting pipe 11. The filter screen cartridge 14 is movably installed inside the end of the three-way pipe fitting 5 away from the connecting pipe 11. A pushing mechanism is provided at the end of the three-way pipe fitting 5 away from the connecting pipe 11. The pushing mechanism is used to push or pull the filter screen from the three-way pipe fitting 5 into the connecting pipe 11.
[0028] As mentioned above, when using the filtering mechanism provided by the present invention, the filter screen cartridge 14 is connected in series to the connecting pipe 11 with the third control valve 4 through the three-way pipe fitting 5. When it is necessary to relieve pressure through the third control valve 4, the pushing mechanism is started to drive the filter screen cartridge 14 into the connecting pipe 11. At this time, the air pressure and part of the dry ice in the equipment cavity 8 are discharged outward through the connecting pipe 11. The dry ice is restricted when it contacts the filter screen cartridge 14, preventing the dry ice from being discharged through the connecting pipe 11 during pressure relief; when it is necessary to clean the equipment cavity 8, the pushing mechanism drives the filter screen cartridge 14 from the connecting pipe 11 into the three-way pipe fitting 5. At this time, the gas and part of the impurities in the equipment cavity 8 are discharged outward through the connecting pipe 11.
[0029] Further, in order to facilitate the adjustment of the position of the filter cylinder 14, refer to Figure 3 As shown, the pushing mechanism includes a plug 7 and a cylinder 6 installed through the outside of the plug 7. The plug 7 is screwed onto the tee pipe fitting 5. The telescopic end of the cylinder 6 is connected to one end of the filter screen cartridge 14. A first sealing gasket 16 is provided between the plug 7 and the tee pipe fitting 5 for sealing. The cylinder 6 is detachably mounted on the tee pipe fitting 5 via the plug 7. During this process, the first sealing gasket 16 seals the plug 7 and the tee pipe fitting 5. After removing the plug 7, the filter screen cartridge 14 can be cleaned and replaced. The cylinder 6 can drive the filter screen cartridge 14 from the tee pipe fitting 5 into the connecting pipe 11 or from the connecting pipe 11 into the tee pipe fitting 5.
[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. Fully automatic pressure relief safety feeding device for cooling materials, characterized by: include: An equipment cavity (8), a liquid phase pipeline (12) and a gas phase pipeline (13); a feeding mechanism for feeding is provided between the equipment cavity (8) and the gas phase pipeline (13) and the liquid phase pipeline (12); the feeding mechanism comprises a three-way valve (1) and three connecting mechanisms installed in parallel on the three-way valve (1); the three connecting mechanisms are all connected and installed on the equipment cavity (8); the three connecting mechanisms are used to feed, relieve pressure and perform jet cleaning on the equipment cavity (8).
2. The fully automatic pressure relief safety feeding device for cooling material according to claim 1 is characterized in that: The three connecting mechanisms respectively include a first control valve (2), a second control valve (3) and a third control valve (4); the first control valve (2), the second control valve (3) and the third control valve (4) are all connected to the three-way valve (1) and the equipment cavity (8) by a connecting pipe (11); the first control valve (2) is used for jet cleaning in the equipment cavity (8); the second control valve (3) is used for dry ice loading in the equipment cavity (8); and the third control valve (4) is used for depressurizing the equipment cavity (8).
3. The fully automatic pressure relief safety feeding device for cooling material according to claim 2, characterized in that: One of the connecting pipes (11) is provided with a filtering mechanism connected in series with the third control valve (4), and when the pressure is released, the dry ice is confined in the equipment cavity (8) through the filtering mechanism.
4. The fully automatic pressure relief safety feeding device for cooling material according to claim 3 is characterized in that: The filtering mechanism comprises a filter screen cartridge (14) and a three-way pipe fitting (5), wherein the three-way pipe fitting (5) is connected in series to the connecting pipe (11), and the filter screen cartridge (14) is movably mounted inside the end of the three-way pipe fitting (5) away from the connecting pipe (11). The end of the three-way pipe fitting (5) away from the connecting pipe (11) is provided with a pushing mechanism, and the pushing mechanism is used to push the filter screen from the three-way pipe fitting (5) into or pull it back into the connecting pipe (11).
5. The fully automatic pressure relief safety feeding device for cooling material according to claim 4 is characterized in that: The pushing mechanism comprises a plug (7) and a cylinder (6) installed outside the plug (7); the plug (7) is screwed onto the three-way pipe fitting (5); the telescopic end of the cylinder (6) is connected to one end of the filter screen cylinder (14); and a first sealing gasket (16) for sealing is provided between the plug (7) and the three-way pipe fitting (5).
6. The fully automatic pressure relief safety feeding device for cooling material according to claim 1, characterized in that: The device cavity (8) is also provided with a pressure sensor (15) for air pressure detection, an external threaded interface (9) is provided on the outer wall of the device cavity (8), one end of the pressure sensor (15) is provided with a mounting seat (10) screwed on the external threaded interface (9), the pressure sensor (15) extends into the device cavity (8) through the external threaded interface (9), and a second sealing gasket (17) for sealing is provided between the mounting seat (10) and the external threaded interface (9).