Steel cylinder heating device and special gas filling device

Abstract

The utility model belongs to the technical field of refrigerant filling equipment, and particularly discloses a steel cylinder heating device and a special gas filling device. The steel cylinder heating device comprises a limiting assembly and a heating assembly, the limiting assembly comprises a limiting part, and the limiting assembly limits a steel cylinder through the limiting part; the heating assembly is arranged on the limiting assembly and used for heating the steel cylinder limited by the limiting assembly. According to the utility model, the steel cylinder can be conveniently heated, and the content of non-condensable gas in the steel cylinder can be reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of refrigerant filling equipment, specifically relating to a cylinder heating device and a special gas filling device. Background Technology

[0002] Refrigerants are used in temperature-sensing components to control the temperature of refrigeration equipment. The quality of the refrigerant affects the working accuracy of the temperature-sensing components, thus affecting the temperature control accuracy of the refrigeration equipment. The temperature-sensing agent in temperature-sensing components mainly utilizes the physical properties of the refrigerant, and the impurities affecting the evaporation and liquefaction temperature of the refrigerant are mainly non-condensable gases in the refrigerant. Using the charging methods employed in related technologies results in a higher content of non-condensable gases in the refrigerant, leading to larger deviations in temperature control. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a gas cylinder heating device, which facilitates heating of the gas cylinder and helps reduce the content of non-condensable gases in the cylinder.

[0004] An embodiment of this utility model also proposes a special gas filling device.

[0005] The gas cylinder heating device of this utility model includes a limiting component and a heating component. The limiting component includes a limiting part, and the limiting component limits the gas cylinder through the limiting part. The heating component is disposed on the limiting component and is used to heat the gas cylinder limited by the limiting component.

[0006] When refrigerant needs to be filled into the cylinder, the cylinder is limited by the limiting part of the limiting component, and the cylinder is heated to the preset temperature by the heating component. Heating the cylinder by the heating component helps to break the adsorption of non-condensable gases on the inner wall of the cylinder, allowing the non-condensable gases to re-enter the gas phase, making it easier to discharge the non-condensable gases from the cylinder, and thus improving the filling quality of the refrigerant.

[0007] In this embodiment, the limiting component includes a limiting frame with a limiting groove that matches the shape of the outer wall of the cylinder, so that the limiting frame limits the cylinder through the groove wall.

[0008] In this embodiment, the wall of the limiting groove is arc-shaped, and at least one side of the limiting groove is open, so that the gas cylinder can be moved into or out of the limiting groove through the opening.

[0009] In this embodiment, the heating assembly includes a heating tube disposed on the limiting assembly. The heating tube has a heating medium inlet and a heating medium outlet, so as to deliver the heating medium into the heating tube through the heating medium inlet and discharge the heating medium in the heating tube through the heating medium outlet.

[0010] In this embodiment, the heating tube is laid in an S-shape on the limiting component.

[0011] The special gas filling device of this invention includes the above-mentioned cylinder heating device.

[0012] In this embodiment, the special gas filling device further includes a cantilever crane, which is disposed on one side of the limiting component. The cantilever crane is used to move the gas cylinder to or from the limiting part of the limiting component.

[0013] In this embodiment, the cantilever crane includes a column, a cantilever, and a suspension component. The column is vertically arranged, the cantilever is horizontally arranged, and one end of the cantilever is rotatably connected to the top of the column. The suspension component is arranged on the cantilever, and the suspension component is used to drive the cylinder to rise and fall.

[0014] In this embodiment, the hanging component includes a drive unit, a traction rope, a fixed pulley, a movable pulley, and a hook. The drive unit is disposed on the cantilever. The fixed pulley is disposed at the end of the cantilever away from the drive unit. One end of the traction rope is connected to the output shaft of the drive unit, and the other end of the traction rope passes around the fixed pulley and is connected to the cantilever. The movable pulley is disposed on the traction rope and located between the fixed pulley and the end of the traction rope connected to the cantilever. The hook is connected to the mounting plate of the fixed pulley.

[0015] In this embodiment, the special gas filling device also includes an electronic scale, which is disposed on one side of the limiting component. Attached Figure Description

[0016] Figure 1 This is a first-view perspective perspective view of the special gas filling device according to an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the special gas filling device according to an embodiment of the present utility model;

[0018] Figure 3 This is a perspective view of the special gas filling device according to an embodiment of the present utility model;

[0019] Figure 4 This is a side view of the special gas filling device according to an embodiment of the present utility model;

[0020] Figure 5 This is a perspective view of the cylinder heating device according to an embodiment of the present invention.

[0021] Figure label:

[0022] 100. Steel cylinder;

[0023] 1. Limiting assembly; 11. Limiting frame; 111. Limiting groove; 2. Heating assembly; 21. Heating tube; 3. Inflation assembly; 31. Inflation pipeline; 32. First valve; 33. First filter; 34. Second valve; 4. Vacuum assembly; 41. Vacuum pipeline; 42. Second filter; 43. Third valve; 44. Fourth valve; 45. Ice machine; 46. Fifth valve; 5. Base; 6. Cantilever crane; 61. Column; 62. Cantilever; 63. Hanging component; 631. Drive component; 632. Traction rope; 633. Fixed pulley; 634. Movable pulley; 635. Hook; 7. Electronic scale. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the embodiments of this application, the filling of refrigerant into a steel cylinder 100 is used as an example for illustration. Figure 1 , Figure 2 and Figure 5 As shown, the special gas filling device includes a cylinder heating device. The cylinder heating device includes a limiting component 1 and a heating component 2. The limiting component 1 includes a limiting part, which limits the cylinder 100. The heating component 2 is disposed on the limiting component 1 and is used to heat the cylinder 100 limited by the limiting component 1.

[0026] When filling the cylinder 100 with refrigerant, the heating component 2 heats the cylinder 100 at a temperature of 55°C to 60°C. Of course, the heating temperature of the heating component 2 can be selected according to actual needs and is not limited here.

[0027] When refrigerant needs to be filled into cylinder 100, cylinder 100 is limited by the limiting part of limiting component 1, and cylinder 100 is heated to a preset temperature by heating component 2. Heating cylinder 100 by heating component 2 helps to break the adsorption of non-condensable gas on the inner wall of cylinder 100, allowing the non-condensable gas to re-enter the gas phase, facilitating the discharge of non-condensable gas from cylinder 100, and improving the filling quality of refrigerant.

[0028] like Figures 1 to 3As shown, the special gas filling device also includes a gas filling component 3 and a vacuuming component 4. The gas filling component 3 can communicate with the cylinder 100, which is limited by the limiting component 1, and fill the cylinder 100 with gas. The air inlet of the vacuuming component 4 can communicate with the cylinder 100, which is limited by the limiting component 1.

[0029] When it is necessary to fill the cylinder 100 with refrigerant, the cylinder 100 is limited by the limiting component 1. First, the cylinder 100 is heated to the preset temperature by the adding component. Then, the cylinder 100 is evacuated by the vacuuming component 4. After the vacuum degree reaches the preset value, the cylinder 100 is filled with a preset weight of refrigerant by the gas filling component 3. Then, the cylinder is evacuated by the vacuuming component 4 again. Finally, the cylinder 100 is filled with refrigerant by the gas filling component 3. The filling stops after the preset weight is reached. Understandably, after the cylinder 100 is heated by the heating component 2, the non-condensable gases inside the cylinder 100 can be easily discharged through vacuuming. After vacuuming, the cylinder 100 is filled with refrigerant and then vacuumed again by the vacuuming component 4. On the one hand, the refrigerant can carry away the gas that was not completely evacuated from the cylinder during subsequent vacuuming. On the other hand, displacement and desorption can be performed to reduce the non-condensable gases adhering to the cylinder body. After a second vacuuming, the cylinder 100 is filled again, which can reduce the content of non-condensable gases inside the cylinder 100 and improve the quality of the refrigerant filled into the cylinder 100.

[0030] In this embodiment, as Figures 1 to 3 As shown, the special gas filling device also includes a base 5, and the limiting component 1, the inflation component 3 and the vacuuming component 4 are all disposed on the base 5.

[0031] It is understandable that by setting the base 5, the limiting component 1, the inflation component 3 and the vacuuming component 4 can be connected as one unit, which is beneficial to the overall movement of the special gas filling device and the compactness of the structure.

[0032] In this embodiment, as Figure 2 and Figure 3 As shown, the limiting assembly 1 includes a limiting frame 11, which has a limiting groove 111, forming a limiting part. The limiting groove 111 matches the shape of the outer wall of the gas cylinder 100, so that the limiting frame 11 limits the gas cylinder 100 through the groove wall of the limiting groove 111.

[0033] Specifically, the wall of the limiting groove 111 is arc-shaped, and at least one side of the limiting groove 111 is open, allowing the cylinder 100 to move into or out of the limiting groove 111 through the opening. Further, a baffle is provided at the bottom of the open side, forming a circumference with the wall of the limiting groove 111, so that the cylinder 100 is stably limited within the limiting groove 111. By setting the wall of the limiting groove 111 to an arc shape that matches the outer wall of the cylinder 100, the limiting groove 111 can both limit and support the cylinder 100, keeping it upright. This facilitates the filling of the cylinder 100 with refrigerant, and the open side of the limiting groove 111 allows the cylinder 100 to be moved into or out of the limiting groove 111 easily.

[0034] The limit bracket 11 can be fixed to the base 5 by the support bracket to improve the stability of the installation of the limit bracket 11.

[0035] In this embodiment, by setting a limiting frame 11 and setting a limiting groove 111 on the limiting frame 11 that matches the shape of the outer wall of the cylinder 100, the cylinder 100 can be limited and supported by the groove wall of the limiting groove 111, so that the cylinder 100 is kept upright, which facilitates the filling of the cylinder 100 with refrigerant.

[0036] In this embodiment, as Figure 2 and Figure 5 As shown, the heating component 2 includes a heating tube 21, which is laid on the limiting component 1. The heating tube 21 has a heating medium inlet and a heating medium outlet, so that the heating medium is delivered into the heating tube 21 through the heating medium inlet and discharged through the heating medium outlet.

[0037] It is understandable that by setting a heating tube 21 on the limiting component, the cylinder 100 can be heated by the heating tube 21 when it is limited by the limiting component 1. The heating temperature of the cylinder 100 can be controlled by the temperature of the heating medium supplied to the heating tube 21. That is, when it is necessary to increase the heating temperature of the cylinder 100, the temperature of the heating medium supplied to the heating tube 21 can be increased; when it is necessary to decrease the heating temperature of the cylinder 100, the temperature of the heating medium supplied to the heating tube 21 can be decreased.

[0038] In this embodiment, the heating tube 21 is laid in an S-shape on the limiting component 1.

[0039] Specifically, the heating pipe 21 is laid on the inner wall of the limiting groove 111, and the direction of the heating pipe 21 matches the curvature of the inner wall of the limiting groove 111, so as to make the heating pipe 21 fit with the gas cylinder 100.

[0040] It is understandable that by laying the heating tube 21 on the limiting component 1, the limiting component 1 can limit the cylinder 100 while the heating tube 21 can fit against the cylinder 100, thereby improving the stability of the heating tube 21 heating the cylinder 100.

[0041] In this embodiment, as Figure 2 and Figure 3 As shown, the inflation assembly 3 includes an inflation pipeline 31 and a first valve 32, a first filter 33 and a second valve 34 arranged sequentially on the inflation pipeline 31 along the inflation direction. The outlet of the inflation pipeline 31 can be connected to the cylinder 100 limited by the limiting assembly 1.

[0042] In this embodiment, the inflation assembly 3 can be provided in multiple sets, each set of which can be filled with a specific gas. For example, there can be two or three sets of inflation assemblies 3, and the number of inflation assemblies 3 can be set according to actual needs and is not limited here. Specifically, when there are multiple sets of inflation assemblies 3, the outlets of the multiple sets of inflation assemblies 3 are interconnected and can be connected to the gas cylinder 100 through a main pipeline to simplify the overall structure. Similarly, the inlet of the vacuum assembly 4 can also be connected to the main pipeline.

[0043] Understandably, when it is necessary to fill the cylinder 100 with gas through the filling component 3, the outlet of the filling component 3 is connected to the cylinder 100, and the first valve 32 and the second valve 34 are opened. At this time, gas can be supplied to the filling pipeline 31 through the external gas supply component for filling. The gas is filtered by the first filter 33, which can reduce the entry of external impurities into the cylinder 100 and improve the quality of the gas filled into the cylinder 100.

[0044] In this embodiment, as Figure 2 and Figure 3 As shown, the vacuum assembly 4 includes a vacuum pipeline 41 and a second filter 42 and a third valve 43 arranged sequentially along the vacuum direction of the vacuum pipeline 41. The inlet of the vacuum pipeline 41 can be connected to the cylinder 100 limited by the limiting assembly 1, and the outlet of the vacuum pipeline 41 is connected to a vacuum pump.

[0045] Understandably, by closing the inflation component 3, connecting the vacuum pipeline to the cylinder 100 which is limited by the limiting component 1, and opening the third valve 43, the cylinder 100 can be evacuated using a vacuum pump.

[0046] In this embodiment, as Figure 3 and Figure 4 As shown, the vacuum assembly 4 also includes a fourth valve 44 and an ice machine 45 connected in sequence. The fourth valve 44 and the ice machine 45 are located on the vacuum pipeline 41 and downstream of the third valve 43.

[0047] Specifically, a fifth valve 46 is connected downstream of the ice machine 45 to facilitate pipeline control. The specific types and models of the fourth valve 44 and the fifth valve 46 can be determined by those skilled in the art according to actual needs, and are not limited here. The ice machine 45 is conventional prior art, and its specific model can be selected according to actual needs, and is not limited here.

[0048] It is understandable that by installing an ice machine 45 on the vacuum line 41, the refrigerant can be condensed into a liquid phase through the ice machine 45 during vacuuming, which facilitates the recovery of the refrigerant.

[0049] In this embodiment, as Figure 1 As shown, the special gas filling device also includes a cantilever crane 6, which is disposed on one side of the limiting component 1. The cantilever crane 6 is used to move the gas cylinder 100 to or from the limiting part of the limiting component 1.

[0050] Specifically, such as Figures 1 to 4 As shown, the cantilever crane 6 includes a column 61, a cantilever 62, and a suspension component 63. The column 61 is vertically positioned, and the cantilever 62 is horizontally positioned, with one end of the cantilever 62 rotatably connected to the top of the column 61. The rotatable connection of one end of the cantilever 62 to the column 61 is conventional prior art and will not be detailed here. Through the rotation of the cantilever 62, the suspension component 63 can drive the gas cylinder 100 to rotate around the column 61 within a certain range. The cantilever 62 can be configured to be telescopic to increase the suspension range. The telescopic mechanism of the cantilever 62 is conventional prior art and will not be detailed here. The suspension component 63 is located on the cantilever 62, and the suspension part is used to lift and lower the gas cylinder 100. Furthermore, the lifting component 63 includes a drive member 631, a traction rope 632, a fixed pulley 633, a movable pulley 634, and a hook 635. The drive member 631 is disposed on the cantilever 62. The fixed pulley 633 is disposed at the end of the cantilever 62 away from the drive member 631. One end of the traction rope 632 is connected to the output shaft of the drive member 631, and the other end of the traction rope 632 passes around the fixed pulley 633 and is connected to the cantilever 62. The movable pulley 634 is disposed on the traction rope 632 and is located between the fixed pulley 633 and the end of the traction rope 632 connected to the cantilever 62. The hook 635 is connected to the mounting plate of the fixed pulley 633. For example, the drive member 631 may include a motor. When it is necessary to lift the cylinder 100, the rotation of the motor drives the traction rope 632 to wind up. The traction rope 632 drives the movable pulley 634 to rise, and the movable pulley 634 drives the hook 635 to lift, thereby enabling the hook 635 to lift the cylinder 100. When it is necessary to lower the cylinder 100, the motor rotates in the direction of rotation, the traction rope 632 extends, driving the movable pulley 634 to descend, and the movable pulley 634 drives the hook 635 to descend, thereby lowering the height of the cylinder 100.

[0051] It is understandable that by setting up a cantilever crane 6 to move the gas cylinder 100 to or from the limiting part of the limiting component 1, the labor intensity of the workers can be reduced, which is conducive to improving the efficiency of loading or unloading the gas cylinder 100.

[0052] In this embodiment, as Figure 1 As shown, the special gas filling device also includes an electronic scale 7, which is provided on one side of the limiting component 1.

[0053] Specifically, the specific specifications and types of electronic scales can be set by those skilled in the art according to actual needs, and are not limited here.

[0054] Understandably, by setting up an electronic scale, the weight of the gas cylinder 100 can be measured, and the weight of the gas being filled into the cylinder 100 can be obtained in a timely manner.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gas cylinder heating device, characterized in that, The device includes a limiting component and a heating component. The limiting component includes a limiting part, through which the limiting component limits the cylinder. The heating component is disposed on the limiting component and is used to heat the cylinder limited by the limiting component.

2. The cylinder heating device according to claim 1, characterized in that, The limiting component includes a limiting frame with a limiting groove that matches the shape of the outer wall of the cylinder, so that the limiting frame limits the cylinder through the groove wall.

3. The cylinder heating device according to claim 2, characterized in that, The wall of the limiting groove is arc-shaped, and at least one side of the limiting groove is open, so that the cylinder can be moved into or out of the limiting groove through the opening.

4. The cylinder heating device according to claim 3, characterized in that, The heating assembly includes a heating tube disposed on the limiting assembly. The heating tube has a heating medium inlet and a heating medium outlet, so as to deliver the heating medium into the heating tube through the heating medium inlet and discharge the heating medium in the heating tube through the heating medium outlet.

5. The cylinder heating device according to claim 4, characterized in that, The heating tube is laid in an S-shape on the limiting component.

6. A special gas filling device, characterized in that, The gas cylinder heating device includes any one of claims 1-5.

7. The special gas filling device according to claim 6, characterized in that, It also includes a cantilever crane, which is disposed on one side of the limiting component. The cantilever crane is used to move the gas cylinder to or from the limiting part of the limiting component.

8. The special gas filling device according to claim 7, characterized in that, The cantilever crane includes a column, a cantilever, and a suspension component. The column is vertically arranged, the cantilever is horizontally arranged, and one end of the cantilever is rotatably connected to the top of the column. The suspension component is arranged on the cantilever, and the suspension component is used to drive the cylinder to rise and fall.

9. The special gas filling device according to claim 8, characterized in that, The suspension component includes a drive unit, a traction rope, a fixed pulley, a movable pulley, and a hook. The drive unit is disposed on the cantilever. The fixed pulley is disposed at the end of the cantilever away from the drive unit. One end of the traction rope is connected to the output shaft of the drive unit, and the other end of the traction rope passes around the fixed pulley and is connected to the cantilever. The movable pulley is disposed on the traction rope and located between the fixed pulley and the end of the traction rope connected to the cantilever. The hook is connected to the mounting plate of the fixed pulley.

10. The special gas filling device according to claim 6, characterized in that, It also includes an electronic scale, which is disposed on one side of the limiting component.

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