A gas wave refrigerator of pneumatic type

Abstract

The utility model relates to refrigeration machinery technical field, and disclose a kind of pneumatic gas wave refrigerator, including refrigerator shell, the outer wall of refrigerator shell is connected with air inlet connector, the bottom surface of refrigerator shell is connected with exhaust pipe, the outer wall of refrigerator shell is connected with multiple oscillation tubes, the bottom of refrigerator shell is rotatably connected with shaft, the outer ring of shaft is fixedly sleeved with runner distributor, the outer ring of runner distributor is fixedly connected with multiple nozzles, the inside of runner distributor is provided with cavity, the top surface of runner distributor is fixedly clamped with baffle, multiple air inlets are arranged in baffle, the top of refrigerator shell is rotatably connected with hollow shaft, the outer ring of hollow shaft is fixedly sleeved with impeller blade, and adjusting assembly is equipped on baffle.The utility model can adjust the air intake according to actual refrigeration load, adapt the use demand under different working conditions, improve the practicability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration machinery technology, specifically a pneumatic air wave refrigeration machine. Background Technology

[0002] Gas wave refrigerators are devices that utilize the interaction between gas shock waves and expansion waves to achieve energy conversion and thus achieve a cooling effect. With their characteristics of fast cooling speed and adaptability to high-pressure conditions, they have a wide range of applications in military scenarios such as aero-engines and missile ground high-altitude simulation test benches.

[0003] Currently, in existing air-wave refrigerators, the gas intake structure of the rotary distributor is designed with a fixed configuration. The cross-sectional area and conduction state of the intake channel cannot be adaptively adjusted according to the actual cooling load, resulting in a consistently fixed intake volume that is difficult to adapt to different operating conditions. When the actual cooling load is low, the fixed intake volume leads to ineffective consumption of high-pressure gas, increasing equipment energy consumption. When the actual cooling load is high, the fixed intake volume cannot meet the equipment's cooling requirements, thus limiting the improvement of cooling efficiency and the optimization of cooling depth, affecting the actual performance of the equipment.

[0004] Therefore, we propose a pneumatic wave refrigerator to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic air wave refrigerator to solve the problem mentioned in the background that existing refrigerators are not convenient for adjusting the air intake volume according to actual needs.

[0006] This utility model provides the following technical solution: a pneumatic wave refrigerator, including a refrigerator housing, an air inlet pipe connected to the outer wall of the refrigerator housing, an exhaust pipe connected to the bottom surface of the refrigerator housing, multiple oscillating tubes connected to the outer wall of the refrigerator housing, cold air outlets opened at the ends of the multiple oscillating tubes, a rotating shaft rotatably connected to the bottom of the refrigerator housing, a rotary distributor fixedly sleeved on the outer ring of the rotating shaft, multiple nozzles fixedly connected to the outer ring of the rotary distributor, a cavity opened inside the rotary distributor, a blocking plate fixedly snapped onto the top surface of the rotary distributor, multiple air inlets opened inside the blocking plate, a hollow shaft rotatably connected to the top of the refrigerator housing, an impeller blade fixedly sleeved on the outer ring of the hollow shaft, and an adjustment component provided on the blocking plate.

[0007] Preferably, each of the plurality of nozzles has a gas flow channel inside, the gas flow channel is connected to the cavity, the nozzle is in contact with the outer casing of the refrigerator and rotates, and the nozzle is connected to the oscillating tube.

[0008] Preferably, the outer wall of the refrigerator housing has a mounting hole adapted to the oscillating tube, the oscillating tube is snapped into the mounting hole, and the number of oscillating tubes corresponds to the number of nozzles.

[0009] Preferably, the adjusting assembly includes a T-shaped shaft rotatably connected within the hollow shaft, the top outer ring of the T-shaped shaft having a threaded groove, and a nut being threaded onto the top outer ring of the T-shaped shaft through the threaded groove.

[0010] Preferably, the rotating shaft has a groove inside, the T-shaped shaft is rotatably connected to the groove, an electromagnet is fixedly connected to the T-shaped shaft, a telescopic rod is fixedly connected to the output end of the electromagnet, a permanent magnet is fixedly connected to the top surface of the telescopic rod, a brake pad is fixedly connected to the top surface of the permanent magnet, the brake pad is in contact with the wall of the groove, a spring is sleeved on the outer ring of the telescopic rod, one end of the spring is fixedly connected to the electromagnet, and the other end of the spring is fixedly connected to the permanent magnet.

[0011] Preferably, an adjusting circular plate is fixedly connected to the bottom surface of the hollow shaft. The adjusting circular plate has multiple through holes. The adjusting circular plate is fixedly connected to the T-shaped shaft. The diameter of the through holes is the same as that of the air inlet.

[0012] This utility model has the following beneficial effects: This refrigeration unit can adjust the intake air volume according to the actual refrigeration load, effectively solving the problems of the inflexible adjustment of intake air volume and poor adaptability to working conditions of traditional air wave refrigeration units. It can adapt to the usage needs under different working conditions, and at the same time facilitates the inspection, maintenance and shutdown of the equipment, reduces the difficulty of equipment operation and maintenance, and improves the practicality of the equipment.

[0013] This refrigeration unit achieves pneumatic self-drive operation, requiring no additional external power input, effectively reducing energy consumption, improving operational stability and convenience, reducing potential malfunctions caused by external power devices, and extending the equipment's service life.

[0014] During operation, this refrigeration unit can effectively reduce gas leakage and energy loss, reduce flow resistance during high-pressure gas flow, and reduce the loss of cold energy in low-temperature exhaust, ensuring refrigeration efficiency and depth, and providing a sustainable and stable low-temperature gas source for gas-using equipment.

[0015] This refrigeration unit can stably adapt to the stringent requirements of military applications and can reliably connect with airborne, shipborne, or vehicle-mounted high-pressure gas supply systems in the military field. It can ensure a stable supply of high-pressure gas even in extreme environments such as high altitude, sea, and desert. At the same time, it can reliably deliver low-temperature gas to relevant low-temperature gas equipment in the military industry, providing a solid low-temperature guarantee for the stable and reliable operation of military equipment, thus broadening the scope of application of the equipment and improving its economic efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is an overall sectional view of the present invention.

[0018] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0020] Figure 5 This is an exploded view of the overall structure of this utility model.

[0021] Figure 6 For the present utility model Figure 5 Partial structural diagram.

[0022] In the diagram: 1. Refrigeration unit casing; 101. Mounting hole; 2. Inlet pipe; 3. Exhaust pipe; 4. Oscillating tube; 41. Cold air outlet; 5. Rotating shaft; 6. Rotary distributor; 61. Nozzle; 62. Gas flow channel; 7. Cavity; 8. Blocking plate; 81. Inlet hole; 9. Hollow shaft; 10. Impeller blade; 11. Adjustment assembly; 111. T-shaped shaft; 112. Threaded groove; 113. Nut; 114. Groove; 115. Electromagnet; 116. Telescopic rod; 117. Permanent magnet; 118. Brake pad; 119. Spring; 12. Adjusting disc; 13. Through hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: This example aims to help solve the problems of inflexible intake volume adjustment and poor adaptability. Please refer to [link / reference]. Figure 1 - Figure 6A pneumatic wave refrigerator includes a refrigerator housing 1, an air inlet pipe 2 connected to the outer wall of the refrigerator housing 1, an exhaust pipe 3 connected to the bottom surface of the refrigerator housing 1, multiple oscillating tubes 4 connected to the outer wall of the refrigerator housing 1, cold air outlets 41 opened on the end sides of the multiple oscillating tubes 4, and multiple oscillating tubes 4 can be set according to actual needs, corresponding to the number of nozzles 61. A rotating shaft 5 is rotatably connected to the bottom of the refrigerator housing 1, a rotating wheel distributor 6 is fixedly sleeved on the outer ring of the rotating shaft 5, multiple nozzles 61 are fixedly connected to the outer ring of the rotating wheel distributor 6, a cavity 7 is opened inside the rotating wheel distributor 6, a blocking plate 8 is fixedly snapped on the top surface of the rotating wheel distributor 6, multiple air inlets 81 are opened in the blocking plate 8, a hollow shaft 9 is rotatably connected to the top of the refrigerator housing 1, an impeller blade 10 is fixedly sleeved on the outer ring of the hollow shaft 9, and an adjustment component 11 is provided on the blocking plate 8.

[0025] like Figure 6 As shown, each of the multiple nozzles 61 has a gas flow channel 62 inside, which is connected to the cavity 7. The nozzles 61 are in contact with the outer casing 1 of the refrigerator and rotate. The nozzles 61 are connected to the oscillating tube 4. The outer wall of the refrigerator casing 1 has a mounting hole 101 that matches the oscillating tube 4. The oscillating tube 4 is engaged with the mounting hole 101. The number of oscillating tubes 4 corresponds to the number of nozzles 61.

[0026] Adjustment assembly 11 includes a T-shaped shaft 111 rotatably connected within the hollow shaft 9. A threaded groove 112 is formed on the top outer ring of the T-shaped shaft 111, and a nut 113 is threaded onto the top outer ring of the T-shaped shaft 111 through the threaded groove 112. A groove 114 is formed inside the rotating shaft 5, and the T-shaped shaft 111 is rotatably connected to the groove 114. An electromagnet 115 is fixedly connected to the T-shaped shaft 111, and a telescopic rod 116 is fixedly connected to the output end of the electromagnet 115. A permanent magnet 117 is fixed to the top surface of the telescopic rod 116. A brake pad 118 is fixedly connected to the top surface of the magnet 117. The brake pad 118 fits against the wall of the groove 114. A spring 119 is sleeved on the outer ring of the telescopic rod 116. One end of the spring 119 is fixedly connected to the electromagnet 115, and the other end of the spring 119 is fixedly connected to the permanent magnet 117. An adjusting disc 12 is fixedly connected to the bottom surface of the hollow shaft 9. Multiple through holes 13 are provided on the adjusting disc 12. The adjusting disc 12 is fixedly connected to the T-shaped shaft 111. The diameter of the through holes 13 is the same as that of the air inlet 81.

[0027] In this embodiment: First, as Figure 4As shown, the electromagnet 115 is in a de-energized state, and the spring 119 is in an extended state. Under the elastic force of the spring 119, the telescopic rod 116 is in an extended state, causing the brake pad 118 to be tightly fitted against the wall of the groove 114 of the rotating shaft 5, so that the T-shaped shaft 111 and the rotating shaft 5 are locked together. Because the spring 119 has sufficient elastic force, a large frictional force is formed between the brake pad 118 and the wall of the groove 114, which is sufficient to drive the relevant components to rotate synchronously, ensuring that the components rotate synchronously when the equipment is running.

[0028] When air intake adjustment is required, electromagnet 115 is energized. Electromagnet 115 generates magnetic force, attracting permanent magnet 117 to move closer to electromagnet 115. Permanent magnet 117 drives telescopic rod 116 to retract downwards simultaneously. At the same time, spring 119 is compressed. Permanent magnet 117 simultaneously drives brake pad 118 to move downwards until brake pad 118 is completely separated from the wall of groove 114 of rotating shaft 5. T-shaped shaft 111 can rotate freely in groove 114 of rotating shaft 5, thereby releasing the lock between T-shaped shaft 111 and rotating shaft 5, providing sufficient conditions for subsequent air intake adjustment operations, and ensuring that the adjustment process is smooth and unobstructed.

[0029] The intake volume is adjusted via the adjustment component 11, such as... Figure 2 - Figure 4 As shown, since the through hole 13 on the adjusting plate 12 and the air inlet hole 81 on the blocking plate 8 have the same diameter and are compatible with each other, the operator can directly rotate the T-shaped shaft 111 to drive the adjusting plate 12 to rotate synchronously. By adjusting the degree of overlap between the through hole 13 on the adjusting plate 12 and the air inlet hole 81 on the blocking plate 8, the air intake volume can be flexibly and accurately adjusted, which can not only ensure the smooth flow of high-pressure gas, but also effectively reduce the energy loss in the gas flow process.

[0030] When the through hole 13 of the adjusting circular plate 12 is completely aligned with the air inlet 81 of the blocking plate 8, the air intake reaches its maximum, which can meet the high-load cooling requirements of the equipment. When the through hole 13 of the adjusting circular plate 12 and the air inlet 81 of the blocking plate 8 partially overlap, the air intake decreases accordingly. The greater the overlap, the smaller the air intake, which can be flexibly adjusted according to the actual cooling load. When the through hole 13 of the adjusting circular plate 12 and the air inlet 81 of the blocking plate 8 are completely overlapped, the air intake channel is closed and the air intake is zero, which facilitates the inspection, maintenance or shutdown of the equipment. Through this overlapping adjustment method, the air intake requirements under different working conditions can be flexibly adapted, improving the equipment's adaptability to working conditions.

[0031] After the air intake volume is adjusted, the electromagnet 115 is de-energized, and its magnetic force disappears. Under the elastic force of the spring 119, the telescopic rod 116 extends upward, driving the permanent magnet 117 and the brake pad 118 to move upward synchronously until the brake pad 118 is tightly fitted against the wall of the groove 114 of the rotating shaft 5, forming a reliable relative braking, effectively preventing relative rotation between components. At this time, the rotating shaft 5, T-shaped shaft 111, hollow shaft 9, adjusting disc 12, and rotary distributor 6 form a relatively fixed braking state, which can achieve synchronous rotation during subsequent operation, ensuring coordinated operation of all components, avoiding gas leakage, energy loss, or equipment failure caused by relative rotation of components, and ensuring the stability and reliability of equipment operation.

[0032] After completing the braking and air intake settings, the air intake pipe 2 is connected to the high-pressure gas source equipment used in military scenarios to stably introduce high-pressure gas. Simultaneously, the exhaust pipe 3 is connected to the external exhaust gas treatment equipment to centrally treat the high-temperature exhaust gas generated during the cooling process, preventing direct emissions that could affect the surrounding environment and equipment operation. The cold air outlet 41 at each end of the oscillating pipe 4 is connected to the low-temperature gas equipment in military scenarios to ensure a precise supply of cooled low-temperature gas. This high-pressure gas source equipment can provide airborne, shipborne, or vehicle-mounted high-pressure gas supply systems in the military field, adapting to extreme military environments such as high altitudes, seas, and deserts, ensuring a stable supply of high-pressure gas. The external exhaust gas treatment equipment can adapt to the stringent environmental requirements of military scenarios, achieving compliant treatment of high-temperature exhaust gas. The low-temperature gas equipment includes precision electronic component cooling equipment and weapon system low-temperature protection equipment in the military field. The connection of these three components forms a complete gas circulation path, meeting the needs of military equipment in special gas usage, cooling, and exhaust gas treatment. The connection method of this equipment is existing technology and will not be described in detail here.

[0033] After the braking and pipeline connection is completed, the high-pressure gas source equipment is turned on. High-pressure gas enters the interior of the refrigerator casing 1 through the air inlet pipe 2. To ensure that the impeller blades 10 can stably drive the rotary distributor 6 to rotate, it is necessary to ensure that the high-pressure gas entering the equipment has a stable flow rate, controllable pressure, and sufficient flow. Under this premise, the high-pressure gas entering the casing can continuously act on the impeller blades 10 on the outer ring of the hollow shaft 9, generating a stable driving force to blow the impeller blades 10 to rotate. When the impeller blades 10 rotate, they drive the hollow shaft 9 to rotate synchronously. Since the hollow shaft 9, T-shaped shaft 111, rotating shaft 5, and rotary distributor 6 have formed a relative braking relationship, the rotation of the hollow shaft 9 will synchronously drive the T-shaped shaft 111, rotating shaft 5, and rotary distributor 6 to rotate together. When the rotary distributor 6 rotates, it drives the multiple nozzles 61 on its outer ring to rotate synchronously, realizing the pneumatic self-drive operation of the equipment without additional external power input, effectively reducing equipment energy consumption, and improving the stability and convenience of equipment operation.

[0034] And it should be noted that, as Figure 2 As shown, the blocking plate 8 rotates in close contact with the inner wall of the refrigerator housing 1, which effectively reduces the leakage of high-pressure gas during the flow process and reduces energy loss. Therefore, the high-pressure gas will pass through the air inlet 81 on the blocking plate 8 and enter the cavity 7 of the rotary distributor 6, realizing the centralized collection and transportation of high-pressure gas. When the nozzle 61 rotates to be in close contact with the oscillating tube 4 on the outer wall of the refrigerator housing 1, the high-pressure gas in the cavity 7 will then pass through the gas flow channel 62 inside the nozzle 61 and enter the corresponding oscillating tube 4. The precise contact design between the nozzle 61 and the oscillating tube 4 further reduces gas leakage and flow resistance, ensuring that the high-pressure gas enters the oscillating tube 4 efficiently.

[0035] After the high-pressure gas enters the oscillating tube 4, it undergoes an energy exchange process involving expansion, compression, and wave reflection. The gas's internal kinetic and internal energy are converted into each other. A portion of the gas is rapidly cooled, forming a low-temperature refrigerated gas flow, while the other portion is continuously compressed and heated during energy exchange, forming a high-temperature exhaust gas. The high-pressure gas rapidly expands within the oscillating tube 4, performing work and rapidly decreasing its own temperature. Simultaneously, a pressure wave is generated within the tube, which reflects back and forth, continuously exchanging energy with the gas and further reducing its temperature, ultimately completing the refrigeration process.

[0036] As the rotary distributor 6 continues to rotate, when the nozzle 61 rotates to the point of separation from the oscillating tube 4, the hot gas generated during the cooling process in the oscillating tube 4 loses its constraint and flows through the gap between the nozzle 61 and the rotary distributor 6 to the exhaust pipe 3 at the bottom of the refrigerator housing 1. The exhaust pipe 3 then discharges the hot gas from the equipment. This gap design helps to eliminate the circumferential velocity component of the exhaust, reduces energy loss during the hot gas discharge process, and prevents the hot gas from mixing with the low-temperature gas, thus affecting the cooling effect.

[0037] It should be noted that the exhaust pipe 3 of this equipment is located on the bottom surface of the refrigerator casing 1, and is specifically used to exhaust the aforementioned high-temperature exhaust gas, not low-temperature gas. After the high-temperature exhaust gas collects inside the casing, it flows smoothly into the exhaust pipe 3 under the action of internal pressure, and is finally discharged to the external exhaust gas treatment device. The low-temperature gas obtained from the refrigeration is output through the cold gas outlet 41 at the end of the oscillating tube 4, and supplied to low-temperature gas-using equipment such as precision electronic component cooling equipment and weapon system low-temperature protection equipment in military scenarios, providing low-temperature protection for the stable and reliable operation of military equipment and adapting to the stringent refrigeration requirements of military scenarios.

[0038] The entire process is repeated continuously, achieving the cooling of high-pressure gas, the output of low-temperature gas, and the discharge of hot gas. This not only fully meets the cooling requirements of military applications, but also enables flexible control of the intake volume through the adjustment component 11, ensuring that the equipment can operate stably and efficiently under different working conditions and adapt to the stringent requirements of the military field.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pneumatic wave refrigerator, comprising a refrigerator housing (1), characterized in that: The outer wall of the refrigerator housing (1) is connected to an air inlet pipe (2), the bottom surface of the refrigerator housing (1) is connected to an exhaust pipe (3), the outer wall of the refrigerator housing (1) is connected to multiple oscillating pipes (4), the ends of the multiple oscillating pipes (4) are provided with cold air outlets (41), the bottom of the refrigerator housing (1) is rotatably connected to a rotating shaft (5), the outer ring of the rotating shaft (5) is fixedly sleeved with a rotary distributor (6), the outer ring of the rotary distributor (6) is fixedly connected to multiple nozzles (61), the inside of the rotary distributor (6) is provided with a cavity (7), the top surface of the rotary distributor (6) is fixedly snapped with a blocking plate (8), the blocking plate (8) is provided with multiple air inlets (81), the top of the refrigerator housing (1) is rotatably connected to a hollow shaft (9), the outer ring of the hollow shaft (9) is fixedly sleeved with impeller blades (10), and the blocking plate (8) is provided with an adjustment component (11).

2. The pneumatic wave refrigerator according to claim 1, characterized in that: Each of the multiple nozzles (61) has a gas flow channel (62) inside, the gas flow channel (62) is connected to the cavity (7), the nozzle (61) is in contact with the refrigerator housing (1) and rotates, and the nozzle (61) is connected to the oscillating tube (4).

3. A pneumatic wave refrigerator according to claim 2, characterized in that: The outer wall of the refrigerator housing (1) is provided with a mounting hole (101) that is compatible with the oscillating tube (4). The oscillating tube (4) is engaged with the mounting hole (101). The number of the oscillating tube (4) corresponds to the number of the nozzles (61).

4. A pneumatic wave refrigerator according to claim 1, characterized in that: The adjustment assembly (11) includes a T-shaped shaft (111) rotatably connected in the hollow shaft (9). The top outer ring of the T-shaped shaft (111) is provided with a threaded groove (112), and a nut (113) is threadedly installed on the top outer ring of the T-shaped shaft (111) through the threaded groove (112).

5. A pneumatic wave refrigerator according to claim 4, characterized in that: The rotating shaft (5) has a groove (114) inside. The T-shaped shaft (111) is rotatably connected to the groove (114). An electromagnet (115) is fixedly connected to the T-shaped shaft (111). A telescopic rod (116) is fixedly connected to the output end of the electromagnet (115). A permanent magnet (117) is fixedly connected to the top surface of the telescopic rod (116). A brake pad (118) is fixedly connected to the top surface of the permanent magnet (117). The brake pad (118) is in contact with the wall of the groove (114). A spring (119) is sleeved on the outer ring of the telescopic rod (116). One end of the spring (119) is fixedly connected to the electromagnet (115), and the other end of the spring (119) is fixedly connected to the permanent magnet (117).

6. A pneumatic wave refrigerator according to claim 5, characterized in that: An adjusting circular plate (12) is fixedly connected to the bottom surface of the hollow shaft (9). The adjusting circular plate (12) has multiple through holes (13). The adjusting circular plate (12) is fixedly connected to the T-shaped shaft (111). The through holes (13) have the same diameter as the air inlet (81).

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