Vortex tube refrigeration instrument box

Abstract

The utility model discloses a vortex tube refrigeration instrument box which comprises an electric control box. The heat exchange plate is fixed to the back of the inner wall of the electric cabinet, and an S-shaped bent pipe is arranged in the heat exchange plate; an oil-water separator; the vortex tube is driven by compressed air for refrigeration, the oil-water separator and the vortex tube are located outside the electric cabinet, and the oil-water separator, the vortex tube and the S-shaped bent pipe are sequentially communicated; the oil-water separator is used for separating condensed water and oil in the compressed air; the heat exchange plate is used for fixing electrical components; and a refrigerant is filled between the inner wall of the heat exchange plate and the outer wall of the S-shaped bent pipe. According to the utility model, original compressed air in a workshop is used as power to refrigerate the instrument box, so that the whole instrument box is also applicable to a high-temperature workshop.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration equipment, in particular to a vortex tube refrigeration instrument box. Background Art

[0002] Industrial instruments are sensitive to ambient temperature and are usually installed in a constant temperature electrical room. However, industrial instruments serve various production lines, so in some cases they need to be installed in high-temperature industrial production sites, such as metallurgical plate annealing production lines, where the ambient temperature is about 60°C. This requires the instrument to be installed in a low-temperature microenvironment, and conventional refrigeration methods cannot work properly, so a special refrigeration instrument box is required. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a vortex tube refrigeration instrument box, which utilizes the original compressed air in the workshop as power to refrigerate the instrument box, thereby making the entire instrument box suitable for use in high-temperature workshops.

[0004] In order to solve the above problems, the utility model provides a vortex tube refrigeration instrument box. In order to achieve the above purpose, the technical solution adopted by the utility model to solve its technical problems is:

[0005] The vortex tube refrigeration instrument box includes: an electric control box; a heat exchange plate fixed at the back of the inner wall of the electric control box, with an S-shaped bend inside the heat exchange plate; an oil-water separator; a vortex tube, which is driven by compressed air for cooling, and the oil-water separator and the vortex tube are located outside the electric control box, and the oil-water separator, the vortex tube, and the S-shaped bend are connected in sequence; the oil-water separator is used to separate the condensed water and oil in the compressed air; the heat exchange plate is used to fix the electrical components; and the space between the inner wall of the heat exchange plate and the outer wall of the S-shaped bend is filled with refrigerant.

[0006] The beneficial effect of adopting the above technical solution is that the technical solution is adapted to local conditions and utilizes one of the basic settings of industrial production sites: compressed air. Compressed air is originally used as power for various pneumatic tools. Here, the compressed air drives the vortex tube for heat exchange to cool down the instrument box and maintain a constant temperature, thereby ensuring the stable operation of industrial instruments.

[0007] As a refrigeration element, the vortex tube has a simple and reliable structure. It mainly makes the high-speed airflow generate a vortex to separate the cold and hot airflows, and uses the cold airflow to obtain a refrigeration method.

[0008] The compressed air used in the large workshop on site may contain certain impurities, so an oil-water separator is used to filter them out to purify the compressed air. When the compressed air enters the oil-water separator, the flow direction and speed change drastically, and the oil and water droplets with a density greater than that of the compressed air are separated by centrifugal action.

[0009] The S-shaped bend and refrigerant allow the heat exchange plate to have sufficient heat exchange capacity in the electric control box, ensuring the cooling capacity in a small space. This allows the instrument box to be used in high-temperature workshops.

[0010] As a further improvement of the present invention, the heat exchange plate is made of aluminum alloy, and a plurality of through holes for the refrigerant to pass through are opened inside the heat exchange plate.

[0011] The beneficial effect of adopting the above technical solution is that it is easy to ensure the uniformity of the refrigeration temperature.

[0012] As a further improvement of the present invention, two opposite sides of the inner wall of the heat exchange plate are connected by a plurality of parallel ribs, and the through holes penetrate the ribs themselves. The S-shaped bend has a plurality of horizontal pipe sections, and the same ends of adjacent horizontal pipe sections are connected by C-shaped elbows; the horizontal pipe sections pass through the ribs, and the ribs are in contact and fixed with the outer walls of the horizontal pipe sections; the distance between the two opposite sides of the inner wall of the heat exchange plate is greater than the outer diameter of the S-shaped bend.

[0013] The beneficial effect of adopting the above technical solution is that the ribs not only increase the contact area between the refrigerant and the inner wall of the heat exchange plate, thereby improving the heat exchange efficiency, but also enhance the dimensional stability between a pair of opposite sides of the inner wall of the heat exchange plate.

[0014] As a further improvement of the utility model, a temperature sensor is attached to the heat exchange plate, and a temperature control module electrically connected to the temperature sensor is provided inside the electric control box.

[0015] The beneficial effect of adopting the above technical solution is that the temperature has a self-feedback adjustment capability, which makes it easy to control the instrument box within a relatively low constant temperature.

[0016] As a further improvement of the utility model, the oil-water separator includes a copper filter element and an oil mist oil cup arranged in parallel, and the compressed air passes through the copper filter element and the oil mist oil cup in turn. The copper filter element is provided with a pressure regulating valve and a pressure gauge, and a drainage hole is also provided at the bottom of the copper filter element.

[0017] The beneficial effect of adopting the above technical solution is that the oil and water in the compressed air can be separated and discharged from the drain hole.

[0018] As a further improvement of the utility model, the heat exchange plate is fixed with a guide rail, the guide rail is detachably equipped with a PLC wire duct, the electrical components are assembled with the PLC wire duct, and the PLC wire duct itself has a hollow hole.

[0019] The beneficial effect of adopting the above technical solution is that the original function of the guide rail and PLC wire duct is to be detachably assembled with various electrical components, and this technical solution also plays this role, but there is an additional role, which is to utilize the large ratio of surface area to volume of the PLC wire duct, which provides a role similar to that of a heat sink fin, further improving the heat exchange efficiency.

[0020] As a further improvement of the utility model, the inlet end of the oil-water separator is connected to a compressed air inlet pipe, the oil-water separator and the vortex tube are connected through an intermediate pipe, the inlet end of the heat exchange plate is connected to an inlet pipe, and the outlet end of the heat exchange plate is connected to an outflow pipe; the inflow pipe and the outlet end of the vortex tube are connected through a relay pipe, and the outlet end of the outflow pipe itself is equipped with a drainage hole; the junction of the inflow pipe and the relay pipe is detachably equipped with a movable joint, and the outflow pipe and the drainage hole are also detachably equipped with a movable joint, and the movable joint passes through the inner wall and outer wall of the electric control box.

[0021] The beneficial effect of adopting the above technical solution is that the drainage hole can drain the condensed water droplets to avoid short circuit in the electric control box. The movable joint also facilitates the disassembly and assembly of the entire pipeline. The pipeline can be disassembled and assembled without opening the electric control box.

[0022] As a further improvement of the utility model, the oil-water separator and the vortex tube are respectively assembled to the outer wall of the electric control box by nailing, the height of the centroid of the oil-water separator itself is higher than the height of the centroid of the vortex tube itself; the length directions of the compressed air inlet pipe and the intermediate pipe themselves are vertical; the junction of the inlet pipe and the heat exchange plate is lower than the junction of the outlet pipe and the heat exchange plate.

[0023] The beneficial effect of adopting the above technical solution is: optimizing the entire gas path of compressed air.

[0024] As a further improvement of the utility model, the edge of the heat exchange plate is provided with a circle of solid flange edge, and the fasteners penetrated through the flange edge realize the suspended fixation of the heat exchange plate and the inner wall of the electric control box.

[0025] The beneficial effect of adopting the above technical solution is that the flange edge is specifically fixed to the fastener, ensuring that the fastener will not penetrate the heat exchange plate and will not cause refrigerant leakage.

[0026] As a further improvement of the utility model, the electric control box comprises a box body, and the box body is hinged with a cover plate; and a heat insulation layer is attached to the inner wall of the electric control box.

[0027] The beneficial effect of adopting the above technical solution is that the heat insulation layer can be PE foam with aluminum foil, so that the electric control box has warmth retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a front view of an implementation method of the utility model;

[0030] Figure 2 It is a side view of an embodiment of the utility model;

[0031] Figure 3 This is a front view of an implementation method of the utility model;

[0032] Figure 4 It is a three-dimensional diagram of an embodiment of the utility model;

[0033] Figure 5 It is a three-dimensional diagram of an embodiment of the utility model;

[0034] Figure 6 It is a three-dimensional diagram of an embodiment of the utility model;

[0035] Figure 7 It is a stereogram of an implementation manner of the utility model.

[0036] 1-compressed air intake pipe; 2-oil-water separator; 3-solenoid valve; 4-vortex tube; 5-component mounting plate; 6-temperature sensor; 7-temperature control module; 8-heat exchange plate; 9-electric control box; 10-water leakage hole; 11-middle pipe; 12-inlet pipe; 13-inflow pipe; 14-outflow pipe; 15-relay pipe; 16-movable joint; 17-nail card; 18-pressure regulating valve; 19-pressure gauge; 20-copper filter element; 21-oil mist oil cup; 22-drain hole; 23-cover plate; 24-box; 25-flange edge; 26-S-shaped bend pipe; 27-PLC wire trough; 28-guide rail. DETAILED DESCRIPTION

[0037] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0038] In order to achieve the purpose of the utility model, the vortex tube refrigeration instrument box includes: an electric control box 9; a heat exchange plate 8, which is fixed at the back of the inner wall of the electric control box 9, and the heat exchange plate 8 is provided with an S-shaped bend 26; an oil-water separator 2; a vortex tube 4, which is driven by compressed air to perform refrigeration, the oil-water separator 2 and the vortex tube 4 are located outside the electric control box 9, and the oil-water separator 2, the vortex tube 4, and the S-shaped bend 26 are connected in sequence; the oil-water separator 2 is used to separate the condensed water and oil in the compressed air; the heat exchange plate 8 is used to fix the electrical components; and the space between the inner wall of the heat exchange plate 8 and the outer wall of the S-shaped bend 26 is filled with refrigerant.

[0039] The beneficial effect of adopting the above technical solution is: this technical solution is adapted to local conditions and utilizes one of the basic settings of the industrial production site: compressed air. Compressed air was originally used as power for various pneumatic tools. Here, the compressed air drives the vortex tube of heat exchange to cool down the instrument box and maintain a constant temperature, thereby ensuring the stable operation of industrial instruments. As a refrigeration element, the vortex tube has a simple and reliable structure. It mainly generates a vortex in the high-speed airflow to separate the cold and hot airflows, and obtains a refrigeration method by using the cold airflow. The compressed air used in the large workshop on site may have certain impurities, so an oil-water separator is used to filter it out so that the compressed air is initially purified. When the compressed air enters the oil-water separator, the flow direction and speed change sharply, and then the oil droplets and water droplets with a density greater than that of the compressed air are separated by centrifugal action. The S-shaped bend and refrigerant enable the heat exchange plate to have sufficient heat exchange capacity in the electric control box, ensuring the refrigeration capacity in a small space. This allows the instrument box to be used in high-temperature workshops.

[0040] In some other embodiments of the present invention, the heat exchange plate 8 is made of aluminum alloy, and a plurality of through holes are provided inside the heat exchange plate 8 for the refrigerant to pass through.

[0041] The beneficial effect of adopting the above technical solution is that it is easy to ensure the uniformity of the refrigeration temperature.

[0042] In other embodiments of the present invention, two opposite sides of the inner wall of the heat exchange plate 8 are connected by a plurality of parallel ribs, and the through holes penetrate the ribs themselves, such as Figure 1 As shown, Figure 1 The dotted line in the figure shows the outline of the S-shaped bend pipe 26 hidden inside. The S-shaped bend pipe 26 has a plurality of horizontal pipe sections, and the same ends of adjacent horizontal pipe sections are connected through C-shaped elbows; the horizontal pipe sections pass through the ribs, and the ribs are fixed in contact with the outer wall of the horizontal pipe sections; the distance between the two opposite sides of the inner wall of the heat exchange plate 8 is greater than the outer diameter of the S-shaped bend pipe 26.

[0043] The beneficial effect of adopting the above technical solution is that the ribs not only increase the contact area between the refrigerant and the inner wall of the heat exchange plate, thereby improving the heat exchange efficiency, but also enhance the dimensional stability between a pair of opposite sides of the inner wall of the heat exchange plate.

[0044] In other embodiments of the present invention, Figure 3 As shown, a temperature sensor 6 is attached to the heat exchange plate 8 , and a temperature control module 7 electrically connected to the temperature sensor 6 is provided inside the electric control box 9 .

[0045] The beneficial effect of adopting the above technical solution is that the temperature has a self-feedback adjustment capability, which makes it easy to control the instrument box within a relatively low constant temperature.

[0046] In other embodiments of the utility model, the oil-water separator 2 includes a copper filter element 20 and an oil mist oil cup 21 arranged in parallel, and the compressed air passes through the copper filter element 20 and the oil mist oil cup 21 in turn. The copper filter element 20 is provided with a pressure regulating valve 18 and a pressure gauge 19, and a drainage hole 22 is also provided at the bottom of the copper filter element 20.

[0047] The beneficial effect of adopting the above technical solution is that the oil and water in the compressed air can be separated and discharged from the drain hole.

[0048] In some other embodiments of the present invention, the heat exchange plate 8 is fixed with a guide rail 28, the guide rail 28 is detachably equipped with a PLC wire slot 27, the electrical components are assembled with the PLC wire slot 27, and the PLC wire slot 27 itself has a hollow hole.

[0049] The beneficial effect of adopting the above technical solution is that the original function of the guide rail and PLC wire duct is to be detachably assembled with various electrical components, and this technical solution also plays this role, but there is an additional role, which is to utilize the large ratio of surface area to volume of the PLC wire duct, which provides a role similar to that of a heat sink fin, further improving the heat exchange efficiency.

[0050] In other embodiments of the utility model, the inlet end of the oil-water separator 2 is connected to the compressed air intake pipe 1, the oil-water separator 2 is connected to the vortex tube 4 through the intermediate pipe 11, the inlet end of the heat exchange plate 8 is connected to the inlet pipe 13, and the outlet end of the heat exchange plate 8 is connected to the outflow pipe 14; the inflow pipe 13 is connected to the outlet end of the vortex tube 4 through the relay pipe 15, and the outlet end of the outflow pipe 14 itself is equipped with a drainage leakage hole 10; the junction of the inflow pipe 13 and the relay pipe 15 is detachably equipped with a movable joint 16, and the outflow pipe 14 and the drainage leakage hole 10 are also detachably equipped with a movable joint 16, and the movable joint 16 passes through the inner wall and outer wall of the electrical control box 9.

[0051] The beneficial effect of adopting the above technical solution is that the drainage hole can drain the condensed water droplets to avoid short circuit in the electric control box. The movable joint also facilitates the disassembly and assembly of the entire pipeline. The pipeline can be disassembled and assembled without opening the electric control box.

[0052] In other embodiments of the present invention, Figure 4 , Figure 5 As shown, the oil-water separator 2 and the vortex tube 4 are respectively assembled with the outer wall of the electric control box 9 by means of nail clips 17, the height of the centroid of the oil-water separator 2 is higher than the height of the centroid of the vortex tube 4; the length directions of the compressed air inlet pipe 1 and the intermediate pipe 11 are both vertical; the junction of the inlet pipe 13 and the heat exchange plate 8 is lower than the junction of the outlet pipe 13 and the heat exchange plate 8.

[0053] The beneficial effect of adopting the above technical solution is: optimizing the entire gas path of compressed air.

[0054] In other embodiments of the present invention, Figure 4 As shown, the edge of the heat exchange plate 8 is provided with a circle of solid flange edge 25, and the fasteners penetrated by the flange edge 25 fix the heat exchange plate 8 and the inner wall of the electric control box 9 in suspension.

[0055] The beneficial effect of adopting the above technical solution is that the flange edge is specifically fixed to the fastener, ensuring that the fastener will not penetrate the heat exchange plate and will not cause refrigerant leakage.

[0056] like Figure 6 As shown, in some other embodiments of the present invention, the electric control box 9 includes a box body 24, and the box body 24 is hinged with a cover plate 23; and a heat insulation layer is attached to the inner wall of the electric control box 9.

[0057] The beneficial effect of adopting the above technical solution is that the heat insulation layer can be PE foam with aluminum foil, so that the electric control box has warmth retention.

[0058] In order to clearly show the internal structure, Figure 1 compared to Figure 3 , Figure 1 Various electrical components in the electric control box 9 are hidden. Figure 4 , Figure 5 The electric control box 9 itself is hidden. Figure 6 It is an oblique view from behind. Figure 7 It is an oblique perspective from the front.

[0059] One side of the heat exchange plate 9 is covered with a component mounting plate 5 . The fasteners of the guide rail 28 itself are not in direct contact with the heat exchange plate 9 , but are all hit on the component mounting plate 5 . The material of the component mounting plate 5 can be thermally conductive silicone.

[0060] The technical solution is an instrument chassis with a refrigeration function, which mainly includes the following parts: a stainless steel electric control box 9 as an instrument box, an oil-water separator 2, a vortex tube 4, a solenoid valve 3, a temperature control module 7, an insulation layer, a heat exchange plate 8 as a cold storage device, and a drainage hole 10 as a condensation drainage hole.

[0061] The oil-water separator 2 and vortex tube 4 are placed outside the instrument box, and the solenoid valve 3, thermostat, and cold storage are placed inside the instrument box. The inside of the instrument box has an insulation layer. To prevent condensation, the bottom of the instrument box has a drainage hole. The cold storage is an aluminum alloy product with high thermal conductivity. There are multiple sets of through holes inside. When the cold end air enters the cold storage, the refrigerant can be stored to the maximum extent, and then discharged from the instrument box through the pipe. There is no air flow inside the instrument box to ensure that the instrument box is dry and clean. The refrigeration chassis has a temperature control function. When the internal temperature reaches the set value, the temperature control module 7 controls the solenoid valve to cut off the compressed air. When the temperature exceeds the set threshold, the compressed air is turned on again for cooling. The instruments and power supplies needed in the industrial site are installed on the upper part of the cold storage, and the cables enter and exit the instrument box through the PG connector, which is also called the cable connector.

[0062] The vortex tube 4 driven by compressed air for heat exchange is refrigerated, the cold air enters the cold storage device of the electric control box 9 for energy storage, and the hot air is discharged outside the electric control box 9. The electric control box 9 has a temperature control function, and the compressed air is cut off or connected by the solenoid valve 3 to achieve temperature control.

[0063] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. Vortex tube refrigeration instrument box, characterized in that: include: Electric control box; A heat exchange plate is fixed to the back of the inner wall of the electric control box, and an S-shaped bend is provided inside the heat exchange plate; Oil-water separator; The vortex tube is driven by compressed air to perform refrigeration. The oil-water separator and the vortex tube are located outside the electric control box. The oil-water separator, the vortex tube and the S-shaped bend are connected in sequence. The oil-water separator is used to separate the condensed water and oil in the compressed air; The heat exchange plate is used to fix the electrical components; the space between the inner wall of the heat exchange plate and the outer wall of the S-shaped bend is filled with refrigerant.

2. The vortex tube refrigeration instrument box according to claim 1, characterized in that: The heat exchange plate is made of aluminum alloy, and has multiple groups of through holes inside for refrigerant to pass through.

3. The vortex tube refrigeration instrument box according to claim 2, characterized in that: The two opposite sides of the inner wall of the heat exchange plate are connected by a plurality of parallel ribs, the through hole penetrates the rib itself, the S-shaped bend has a plurality of horizontal pipe sections, and the same ends of adjacent horizontal pipe sections are connected by a C-shaped elbow; the horizontal pipe section passes through the rib, and the rib is in contact and fixed with the outer wall of the horizontal pipe section; the distance between the two opposite sides of the inner wall of the heat exchange plate is greater than the outer diameter of the S-shaped bend.

4. The vortex tube refrigeration instrument box according to claim 1, characterized in that: A temperature sensor is attached to the heat exchange plate, and a temperature control module electrically connected to the temperature sensor is provided inside the electric control box.

5. The vortex tube refrigeration instrument box according to claim 1, characterized in that: The oil-water separator comprises a copper filter element and an oil mist oil cup arranged in parallel, the compressed air passes through the copper filter element and the oil mist oil cup in sequence, the copper filter element is provided with a pressure regulating valve and a pressure gauge, and a drainage hole is also provided at the bottom of the copper filter element.

6. The vortex tube refrigeration instrument box according to claim 1, characterized in that: The heat exchange plate is fixed with a guide rail, the guide rail is detachably equipped with a PLC wire trough, the electrical component is assembled with the PLC wire trough, and the PLC wire trough itself has a hollow hole.

7. The vortex tube refrigeration instrument box according to claim 1, characterized in that: The inlet end of the oil-water separator is connected to a compressed air inlet pipe, the oil-water separator is connected to the vortex tube through an intermediate pipe, the inlet end of the heat exchange plate is connected to an inlet pipe, and the outlet end of the heat exchange plate is connected to an outlet pipe; The inflow pipe is connected to the outlet end of the vortex tube through a relay pipe, and the outlet end of the outflow pipe is equipped with a drainage hole; The junction of the inflow pipe and the relay pipe is detachably equipped with a movable joint, and the outflow pipe and the drainage leakage hole are also detachably equipped with a movable joint, and the movable joint passes through the inner wall and the outer wall of the electric control box.

8. The vortex tube refrigeration instrument box according to claim 7, characterized in that: The oil-water separator and the vortex tube are respectively assembled with the outer wall of the electric control box by means of nails and clamps, and the height of the centroid of the oil-water separator is higher than the height of the centroid of the vortex tube; The length directions of the compressed air intake pipe and the intermediate pipe are both vertical; The junction between the inflow pipe and the heat exchange plate is lower than the junction between the outflow pipe and the heat exchange plate.

9. The vortex tube refrigeration instrument box according to claim 1, characterized in that: The edge of the heat exchange plate is provided with a circle of solid flange edge, and the fasteners penetrated through the flange edge realize the suspended fixation of the heat exchange plate and the inner wall of the electric control box.

10. The vortex tube refrigeration instrument box according to any one of claims 1 to 9, characterized in that: The electric control box comprises a box body, and a cover plate is hinged on the box body; and a heat insulation layer is attached to the inner wall of the electric control box.

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