An explosion-proof air-cooled ultrasonic transducer device

Abstract

The application discloses an explosion-proof air-cooled ultrasonic transducer device, which comprises a front end assembly, a shell, a piezoelectric ceramic assembly, a rear end assembly and an explosion-proof control assembly. The two ends of the shell are connected with the front end assembly and the rear end assembly respectively, the piezoelectric ceramic assembly is arranged in the interior of the shell and connected with the front end assembly at one end. The front end assembly is provided with a first air inlet channel and a first air outlet channel, the interior of the piezoelectric ceramic assembly is provided with a second air inlet channel, and the exterior of the piezoelectric ceramic assembly and the inner wall of the shell form a second air outlet channel. The explosion-proof control assembly can control the cooling gas to enter the second air inlet channel from the first air inlet channel to cool the interior of the piezoelectric ceramic assembly, then enter the second air outlet channel from the second air inlet channel to cool the exterior of the piezoelectric ceramic assembly, and finally enter the first air outlet channel from the second air outlet channel and be discharged. Meanwhile, the explosion-proof control assembly detects and controls the pressure borne by the shell, so that the ultrasonic transducer can normally work in a high-temperature or other harsh environment.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic transducer technology, and in particular to an explosion-proof, air-cooled ultrasonic transducer device. Background Technology

[0002] When using ultrasonic transducers to treat oily waste, the waste needs to be heated to above 95°C to achieve better treatment results. This results in high heat transfer to the piezoelectric ceramic element within the transducer. Additionally, some of the energy generated during operation is also converted into heat, causing the piezoelectric ceramic element to heat up. Due to the characteristics of piezoelectric ceramic materials, such as a low Curie temperature (around 120°C), the piezoelectric ceramic element will depolarize and malfunction when the temperature exceeds 80°C, potentially leading to breakage. Therefore, in practice, to ensure the long-term reliability of the transducer, the operating temperature is generally controlled below 80°C, but this also limits the effectiveness of the treatment. Furthermore, flammable gases, corrosive gases, or other conductive particles in the external environment can easily affect the piezoelectric ceramic element, potentially causing an explosion. Therefore, ensuring the stable operation of the piezoelectric ceramic element in ultrasonic transducers for extended periods in harsh environments is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This invention provides an explosion-proof, air-cooled ultrasonic transducer device to overcome the technical problem that ultrasonic transducers are unstable and prone to damage in harsh environments.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] An explosion-proof, air-cooled ultrasonic transducer device includes an ultrasonic transducer and an explosion-proof control component, wherein the ultrasonic transducer is connected to the explosion-proof control component.

[0006] The ultrasonic transducer includes a front-end component, a housing, a piezoelectric ceramic component, and a rear-end component; the two ends of the housing are respectively connected to the front-end component and the rear-end component, and the piezoelectric ceramic component is disposed inside the housing, with one end connected to the front-end component;

[0007] The front-end component is provided with a first air inlet channel and a first air outlet channel. The piezoelectric ceramic component has a second air inlet channel inside, and a second air outlet channel is formed between the outer surface of the piezoelectric ceramic component and the inner wall of the outer shell. The explosion-proof control component can control the cooling gas to enter the second air inlet channel from the first air inlet channel to cool the inside of the piezoelectric ceramic component, and then enter the second air outlet channel from the second air inlet channel to cool the outside of the piezoelectric ceramic component. Finally, the cooling gas enters the first air outlet channel from the second air outlet channel and is discharged. At the same time, the explosion-proof control component is also used to detect and control the pressure on the outer shell, thereby ensuring the stable operation of the ultrasonic transducer.

[0008] Furthermore, the front-end assembly includes a front cover portion, a first fixing seat, a second fixing seat, an air inlet connector, and an air outlet connector;

[0009] The first fixing seat has an air inlet and an air outlet disposed opposite each other at the end away from the piezoelectric ceramic component, and the end close to the piezoelectric ceramic component is connected to the second fixing seat. Both the first fixing seat and the second fixing seat are provided with a receiving cavity for accommodating the front cover portion. The front cover portion is installed in the receiving cavity and connected to the piezoelectric ceramic component.

[0010] The first air intake channel includes a first internal channel disposed within the air intake connector, a first annular channel disposed between the first fixed seat and the second fixed seat, and a second internal channel disposed within the front cover portion, which are connected in sequence.

[0011] Furthermore, the piezoelectric ceramic assembly includes a first piezoelectric ceramic element, a second piezoelectric ceramic element, a first screw, a second screw, an intermediate cover plate, an intermediate block, a rear cover plate, and a nut;

[0012] One end of the first screw is connected to the front cover portion. The outer wall of the first screw is provided with a first piezoelectric ceramic element, an intermediate cover plate and an intermediate block in sequence along the direction away from the front cover portion. At the same time, the first screw is fixedly connected to one end of the intermediate block.

[0013] One end of the second screw is connected to the other end of the intermediate block. The outer wall of the second screw is provided with a second piezoelectric ceramic element, a rear cover plate and a nut in sequence along the direction away from the first screw. At the same time, the second screw is fixedly connected to the nut.

[0014] The second air intake channel includes a second annular channel formed between the first piezoelectric ceramic element and the first screw, a third annular channel formed between the intermediate cover plate and the first screw, a plurality of first annular through holes disposed in the intermediate block, a fourth annular channel formed between the second piezoelectric ceramic element and the second screw, a fifth annular channel formed between the rear cover plate and the second screw, and a plurality of second annular through holes disposed in the nut.

[0015] Furthermore, the first air outlet channel includes a third air outlet channel disposed within the second fixed base, an annular air outlet channel disposed within the first fixed base, and a third internal channel disposed within the air outlet connector.

[0016] Furthermore, the explosion-proof control component includes a temperature detection control module, a pressure detection control module, an air intake control module, an air exhaust control module, an alarm module, and an ultrasonic power supply module; the rear-end component includes a rear-end cover and a power supply and temperature measurement connector; the rear-end cover is connected to the end of the housing away from the front-end component, and the power supply and temperature measurement connector is provided on the rear-end cover; the ultrasonic transducer is electrically connected to the temperature detection control module and the ultrasonic power supply module through the power supply and temperature measurement connector;

[0017] The front-end assembly further includes a pressure testing connector, which is located at the end of the first mounting base away from the piezoelectric ceramic assembly. The pressure testing connector has a pressure detection channel, which is connected to the annular outlet channel. The inlet control module controls the flow rate of cooling gas entering the ultrasonic transducer from the inlet connector, ensuring that the piezoelectric ceramic assembly is maintained at its normal operating temperature while maintaining the shell pressure within a set normal operating range. The outlet control module controls the flow rate of cooling gas exiting from the outlet connector, ensuring that the shell pressure is maintained within a set normal operating range. The temperature detection and control module is used to acquire the temperature data of the piezoelectric ceramic component and control the ultrasonic power supply module to disconnect when the temperature of the piezoelectric ceramic component reaches the set temperature threshold. The pressure detection and control module is connected to the pressure measuring connector to detect the shell pressure data and compares the shell pressure data with the set upper and lower pressure alarm thresholds. If the shell pressure data is greater than the set upper pressure alarm threshold or less than the set lower pressure alarm threshold, the alarm module is controlled to issue an alarm signal, and the corresponding air outlet control module or air inlet control module is activated. If the shell pressure data continues to rise to the set upper power cut-off threshold or fall to the set lower power cut-off pressure threshold after the air outlet control module or air inlet control module is activated, the ultrasonic power supply module is controlled to disconnect.

[0018] Beneficial effects: This invention, by setting a cooling gas channel inside the piezoelectric ceramic component in the ultrasonic transducer and setting an explosion-proof control component to control the flow of low-temperature dry compressed air into the ultrasonic transducer to cool the inside and outside of the piezoelectric ceramic component, enables the ultrasonic transducer to operate normally in high-temperature environments. At the same time, it maintains a certain outward pressure relative to the external working environment in the ultrasonic transducer. By utilizing the internal gas pressure difference of the ultrasonic transducer, it can prevent flammable gases, corrosive gases or other conductive particles in the external hazardous environment from entering the interior of the ultrasonic transducer, ensuring the normal operation of the ultrasonic transducer. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the ultrasonic transducer in the explosion-proof air-cooled ultrasonic transducer device of the present invention.

[0021] Figure 2 The ultrasonic transducer in the explosion-proof air-cooled ultrasonic transducer device of the present invention is used in... Figure 1 First sectional view at point AA;

[0022] Figure 3 The ultrasonic transducer in the explosion-proof air-cooled ultrasonic transducer device of the present invention is used in... Figure 1 Second sectional view at point AA;

[0023] Figure 4 This is a schematic diagram showing the connection between the ultrasonic transducer and the explosion-proof control component in an explosion-proof air-cooled ultrasonic transducer device of the present invention.

[0024] In the picture:

[0025] 1. Front-end assembly; 11. First air intake channel; 111. First internal channel; 112. First annular channel; 113. Second internal channel; 12. First air outlet channel; 121. Third air outlet channel; 122. Annular air outlet channel; 123. Third internal channel; 13. Front cover portion; 14. First mounting base; 15. Second mounting base; 16. Air intake connector; 17. Air outlet connector;

[0026] 2. Outer shell;

[0027] 3. Piezoelectric ceramic assembly; 31. Second air intake channel; 311. Second annular channel; 312. Third annular channel; 313. First annular through hole; 314. Fourth annular channel; 315. Fifth annular channel; 316. Second annular through hole; 32. Second air outlet channel; 33. First piezoelectric ceramic element; 34. Second piezoelectric ceramic element; 35. First screw; 36. Second screw; 37. Intermediate cover plate; 38. Intermediate block; 39. Rear cover plate; 40. Nut; 30. Aluminum gasket;

[0028] 4. Rear-end components; 41. Rear-end cover; 42. Pressure test connector; 421. Pressure detection channel; 43. Power supply and temperature measurement connector;

[0029] 5. Explosion-proof control components; 51. Air filter; 52. Pressure gauge; 53. Pressure regulating valve; 54. First explosion-proof solenoid valve; 55. Inlet flow meter; 56. Outlet flow meter; 57. Second explosion-proof solenoid valve; 58. Silencer; 59. Explosion-proof audible and visual alarm; 60. Pressure detection and control module; 61. Micro differential pressure sensor; 62. Temperature detection and control module; 63. Positive pressure cabinet. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This embodiment provides an explosion-proof, air-cooled ultrasonic transducer device, such as... Figures 1 to 4 As shown, it includes an ultrasonic transducer and an explosion-proof control component 5, wherein the ultrasonic transducer is connected to the explosion-proof control component 5;

[0032] The ultrasonic transducer includes a front-end component 1, a housing 2, a piezoelectric ceramic component 3, a rear-end component 4, and an explosion-proof control component 5; the two ends of the housing 2 are respectively connected to the front-end component 1 and the rear-end component 4, and the piezoelectric ceramic component 3 is disposed inside the housing 2, with one end connected to the front-end component 1;

[0033] The front-end component 1 is provided with a first air inlet channel 11 and a first air outlet channel 12. The piezoelectric ceramic component 3 is provided with a second air inlet channel 31 inside. A second air outlet channel 32 is formed between the outside of the piezoelectric ceramic component 3 and the inner wall of the outer shell 2. The explosion-proof control component 5 can control the cooling gas to enter the second air inlet channel 31 from the first air inlet channel 11 to cool the inside of the piezoelectric ceramic component 3, and then enter the second air outlet channel 32 from the second air inlet channel 31 to cool the outside of the piezoelectric ceramic component 3. Finally, the cooling gas enters the first air outlet channel 12 from the second air outlet channel 32 and is discharged. At the same time, the explosion-proof control component 5 is also used to detect and control the pressure on the outer shell 2, thereby ensuring the stable operation of the ultrasonic transducer.

[0034] Specifically, in this embodiment, by setting a first air inlet channel 11 and a second air inlet channel 31 in the ultrasonic transducer, it is ensured that when the ultrasonic transducer temperature is high, the explosion-proof control component 5 can control the cooling gas to enter the interior of the piezoelectric ceramic component 3 to cool the piezoelectric ceramic component. At the same time, due to the setting of the outer shell 2 and the formation of a second air outlet channel 32 between the piezoelectric ceramic component, the cooling gas can also enter the second air outlet channel 32 through the second air inlet channel 31 to cool the exterior of the piezoelectric ceramic component 3, and finally be discharged from the first air outlet channel 12. This structure can cool the ultrasonic transducer from both the inside and the outside. Considering the harsh working environment of the ultrasonic transducer, the cooling gas not only plays a role in cooling, but also ensures that the internal pressure of the ultrasonic transducer is greater than the pressure of the external environment, thereby avoiding the easy influence of flammable gases, corrosive gases or other conductive particles in the external environment on the piezoelectric ceramic component, ensuring the stable operation of the ultrasonic transducer, and improving the service life of the piezoelectric ceramic component.

[0035] Specifically, in this embodiment, preferably, the outer shell 2 is made of high-strength aluminum alloy, which can better dissipate heat and further ensure the stable operation of the ultrasonic transducer.

[0036] In a specific embodiment, the front end component 1 includes a front cover portion 13, a first fixing seat 14, a second fixing seat 15, an air inlet connector 16, and an air outlet connector 17.

[0037] The first fixing seat 14 is provided with the air inlet connector 16 and the air outlet connector 17 opposite each other at the end away from the piezoelectric ceramic component 3, and the end close to the piezoelectric ceramic component 3 is connected to the second fixing seat 15. Both the first fixing seat 14 and the second fixing seat 15 are provided with a receiving cavity for accommodating the front cover portion 13. The front cover portion 13 is installed in the receiving cavity and connected to the piezoelectric ceramic component 3.

[0038] The first air intake channel 11 includes a first internal channel 111 disposed in the air intake connector, a first annular channel 112 disposed between the first fixed seat and the second fixed seat, and a second internal channel 113 disposed in the front cover portion, which are connected in sequence.

[0039] In a specific embodiment, the piezoelectric ceramic assembly 3 includes a first piezoelectric ceramic element 33, a second piezoelectric ceramic element 34, a first screw 35, a second screw 36, an intermediate cover plate 37, an intermediate block 38, a rear cover plate 39, and a nut 40.

[0040] One end of the first screw 35 is connected to the front cover portion 13. The outer wall of the first screw 35 is provided with a first piezoelectric ceramic element 33, an intermediate cover plate 37 and an intermediate block 38 in sequence along the direction away from the front cover portion 13. At the same time, the first screw 35 is fixedly connected to one end of the intermediate block 38.

[0041] One end of the second screw 36 is connected to the other end of the intermediate block 38. The outer wall of the second screw 36 is provided with a second piezoelectric ceramic element 34, a rear cover plate 39 and a nut 40 in sequence along the direction away from the first screw 35. At the same time, the second screw 36 and the nut 40 are fixedly connected by threads.

[0042] The second air intake channel 31 includes a second annular channel 311 formed between the first piezoelectric ceramic element and the first screw, a third annular channel 312 formed between the intermediate cover plate and the first screw, a plurality of first annular through holes 313 disposed in the intermediate block, a fourth annular channel 314 formed between the second piezoelectric ceramic element and the second screw, a fifth annular channel 315 formed between the rear cover plate and the second screw, and a plurality of second annular through holes 316 disposed in the nut. This structure ensures that cooling gas can flow sequentially through the interior of the piezoelectric ceramic assembly, thereby cooling the piezoelectric ceramic assembly.

[0043] Specifically, the first piezoelectric ceramic element includes several piezoelectric ceramic sheets and several electrode sheets, with each piezoelectric ceramic sheet and electrode sheet adjacent to each other. The second piezoelectric ceramic element includes several piezoelectric ceramic sheets, several electrode sheets, and an aluminum pad 30. The aluminum pad is disposed between a piezoelectric ceramic sheet and an electrode sheet, and the side wall of the aluminum pad has a groove for mounting a temperature sensor. The temperature sensor is disposed in the groove. In this embodiment, preferably, the first and second piezoelectric ceramic elements each include four piezoelectric ceramic sheets and four electrode sheets, with the aluminum pad positioned in the middle of the second piezoelectric ceramic assembly. The temperature sensor can detect the temperature of the ultrasonic transducer and transmit the data to the explosion-proof control component 5, thereby controlling the entry of cooling gas and ensuring the stable operation of the ultrasonic transducer. In this embodiment, by setting multiple sets of piezoelectric ceramic elements, the number of piezoelectric ceramics is increased, and the size of the piezoelectric ceramics is also increased, thereby improving the power of the ultrasonic transducer.

[0044] Specifically, the intermediate block 38 is a hollow cylindrical structure, and its inner sidewall is provided with a first internal thread and a second internal thread. The intermediate block is connected to the first screw through the first internal thread and to the second screw through the second internal thread. A plurality of first annular through holes 313 are also uniformly arranged along the axial direction of the intermediate block, and these holes surround the inner sidewall, ensuring that cooling gas can enter the fourth annular channel 314 through the holes. In this embodiment, due to the high installation and precision requirements of the piezoelectric ceramics, the intermediate block and intermediate cover plate are designed to divide them into multiple groups of piezoelectric ceramic elements. The first and second piezoelectric ceramic elements are then fixedly connected, ensuring accurate positioning and installation of the first and second piezoelectric ceramic elements, reducing the installation difficulty of multiple piezoelectric ceramic elements, meeting the preload requirements of the piezoelectric ceramic elements, ensuring that the piezoelectric ceramic elements can only withstand axial force after installation with the specified preload, and that the force is uniform, and ensuring coaxiality of the two piezoelectric ceramic elements after installation, thus ensuring smooth passage of cooling gas.

[0045] Specifically, the front cover portion 12 is an integral structure composed of a mounting post and an annular plate. The annular plate is sleeved on the end of the mounting post near the piezoelectric ceramic component. One end of the mounting post has a first receiving cavity and a second receiving cavity connected sequentially along the direction near the piezoelectric ceramic component. The first receiving cavity has an internal thread. One end of the first screw 35 is located in the first receiving cavity and the second receiving cavity and is connected to the front cover portion 12 through the internal thread of the first receiving cavity. The sidewall of the annular plate has a plurality of first through holes evenly provided in the radial direction. The sidewall of the mounting post has a plurality of second through holes corresponding to the first through holes in the radial direction. Therefore, the annular plate and the mounting post are correspondingly shaped... The second internal channel 113 is formed; the first fixing seat 14 has an annular structure and a first annular groove is provided on the side wall near the second internal channel 113. After the first fixing seat and the second fixing seat are fixedly connected by screws, the first annular channel 112 is formed. Cooling air enters the first annular channel 112 from the first internal channel 111 of the air inlet connector, and then enters the second internal channel 113 from the first annular channel 112. Since an annular gap is formed between the second receiving cavity and the first screw 35, the cooling gas in the second internal channel 113 can enter the second air inlet channel 31 through the second receiving cavity, thereby better cooling the piezoelectric ceramic component.

[0046] Specifically, the outer wall of the first fixing seat is provided with a threaded hole, the first fixing seat and the second fixing seat are fixedly connected by screws and are disposed inside the housing 2, and the first fixing seat is fixedly connected to the housing by screws.

[0047] In a specific embodiment, the first air outlet channel 12 includes a third air outlet channel 121 disposed in the second fixed base, an annular air outlet channel 122 disposed in the first fixed base, and a third internal channel 123 disposed in the air outlet connector.

[0048] Specifically, the third air outlet channel 121 consists of several third through holes evenly arranged on the end face of the second fixed base. The end face of the first fixed base near the second fixed base is provided with a second annular groove corresponding to the several third through holes, namely the annular air outlet channel 122. Cooling gas enters the third through hole from the second air inlet channel 31 and enters the annular air outlet channel 122 through the third through hole. The air outlet connector 17 is connected to the annular air outlet channel 122. Therefore, the cooling gas enters the third internal channel 123 of the air outlet connector through the annular air outlet channel 122 and flows out.

[0049] In a specific embodiment, such as Figure 4 As shown, the explosion-proof control component 5 includes a temperature detection and control module 62, a pressure detection and control module 60, an air intake control module, an air exhaust control module, an alarm module, and an ultrasonic power supply module; specifically, the temperature detection and control module 62 and the ultrasonic power supply module are integrated in the positive pressure cabinet 63.

[0050] Specifically, the rear-end component 4 includes a rear-end cover plate 41 and a power supply and temperature measurement connector 43; the rear-end cover plate 41 is connected to the end of the housing 2 away from the front-end component 1, and the power supply and temperature measurement connector 43 is provided on the rear-end cover plate 41; the ultrasonic transducer is electrically connected to the temperature detection and control module and the ultrasonic power supply module through the power supply and temperature measurement connector 43.

[0051] Specifically, the front-end component 1 further includes a pressure testing connector 42. The pressure testing connector 42 is provided at one end of the first fixed base 14 away from the piezoelectric ceramic component 3. The pressure testing connector is provided with a pressure detection channel 421, and the pressure detection channel 421 is connected to the annular air outlet channel 122.

[0052] Specifically, the intake control module controls the flow rate of cooling gas entering the ultrasonic transducer from the intake connector 16, ensuring that the piezoelectric ceramic assembly is maintained at its normal operating temperature while keeping the housing pressure within a set normal operating range. Specifically, the intake control module controls the cooling gas to continuously flow through the housing at the same flow rate, thereby maintaining the housing pressure within the normal pressure range. The exhaust control module controls the flow rate of cooling gas exiting from the exhaust connector 17, ensuring that the housing pressure is maintained within a set normal operating range.

[0053] Specifically, the temperature detection and control module is used to acquire the temperature data of the piezoelectric ceramic component, and control the ultrasonic power supply module to disconnect when the temperature of the piezoelectric ceramic component reaches a set temperature threshold; specifically, the temperature detection and control module acquires the temperature data of the piezoelectric ceramic component by being electrically connected to the temperature sensor inside the ultrasonic transducer.

[0054] Specifically, the pressure detection and control module is connected to the pressure measuring connector 42 to detect the shell pressure data. This data is then compared to set upper and lower pressure alarm thresholds. If the shell pressure data is greater than the set upper pressure alarm threshold or less than the set lower pressure alarm threshold, the alarm module is controlled to issue an alarm signal, and the corresponding air outlet control module or air inlet control module is activated. If, after the air outlet control module or air inlet control module is activated, the shell pressure data continues to rise to the set upper power cutoff threshold or fall to the set lower power cutoff pressure threshold, the ultrasonic power module is controlled to disconnect. Specifically, the pressure detection and control module detects the shell pressure through the pressure measuring connector 42. For example, when the shell pressure is lower than the set lower power cutoff pressure threshold of 50 Pa, the pressure detection and control module controls the ultrasonic power module to disconnect.

[0055] Specifically, the air intake control module includes an air filter 51, a pressure gauge 52, a pressure regulating valve 53, a first explosion-proof solenoid valve 54, and an air intake flow meter 55; the air outlet control module includes an air outlet flow meter 56, a second explosion-proof solenoid valve 57, and a silencer 58. The pressure detection control module 60 detects the housing pressure through a micro differential pressure sensor 61; the alarm module is an explosion-proof audible and visual alarm 59.

[0056] In this embodiment, the ultrasonic transducer is connected to the explosion-proof control component. Cooling gas from the safe area is introduced into the ultrasonic transducer to thoroughly clean and replace the flammable gas inside, maintaining a certain positive pressure inside the shell. This prevents the entry of flammable gases and conductive dust from the external hazardous environment, thus isolating flammable substances from ignition sources and achieving explosion-proof purpose.

[0057] Specifically, this embodiment also includes a ventilation control module (not shown in the figure). The ventilation control module can effectively ensure that the explosion-proof control component is ventilated before use. The next operation can only be carried out after the ventilation is completed. That is, the positive pressure chamber cannot be energized when the ventilation process is not completed or the shell pressure does not reach the working pressure range, so as to ensure safety and at the same time ensure the explosion-proof effect.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An explosion-proof, air-cooled ultrasonic transducer device, characterized in that, It includes an ultrasonic transducer and an explosion-proof control assembly (5), wherein the ultrasonic transducer is connected to the explosion-proof control assembly (5); The ultrasonic transducer includes a front-end component (1), a housing (2), a piezoelectric ceramic component (3), and a rear-end component (4); the two ends of the housing (2) are respectively connected to the front-end component (1) and the rear-end component (4), and the piezoelectric ceramic component (3) is disposed inside the housing (2) and one end is connected to the front-end component (1); The front-end component (1) is provided with a first air inlet channel (11) and a first air outlet channel (12). The piezoelectric ceramic component (3) is provided with a second air inlet channel (31). A second air outlet channel (32) is formed between the outside of the piezoelectric ceramic component (3) and the inner wall of the outer shell (2). The explosion-proof control component (5) can control the cooling gas to enter the second air inlet channel (31) from the first air inlet channel (11) to cool the inside of the piezoelectric ceramic component (3), and then enter the second air outlet channel (32) from the second air inlet channel (31) to cool the outside of the piezoelectric ceramic component (3). Finally, the cooling gas enters the first air outlet channel (12) from the second air outlet channel (32) and is discharged. At the same time, the explosion-proof control component (5) is also used to detect and control the pressure on the outer shell (2) to ensure that the internal pressure of the ultrasonic transducer is greater than the pressure of the external environment and to ensure that the pressure of the outer shell is maintained within the set normal working range, thereby ensuring the stable operation of the ultrasonic transducer.

2. The explosion-proof air-cooled ultrasonic transducer device according to claim 1, characterized in that, The front end assembly (1) includes a front cover (13), a first fixing seat (14), a second fixing seat (15), an air inlet connector (16), and an air outlet connector (17). The first fixing seat (14) has an air inlet connector (16) and an air outlet connector (17) opposite to the end of the piezoelectric ceramic component (3), and the end of the first fixing seat (14) close to the piezoelectric ceramic component (3) is connected to the second fixing seat (15). Both the first fixing seat (14) and the second fixing seat (15) are provided with a receiving cavity for accommodating the front cover part (13). The front cover part (13) is installed in the receiving cavity and connected to the piezoelectric ceramic component (3). The first air intake channel (11) includes a first internal channel (111) disposed in the air intake connector, a first annular channel (112) disposed between the first fixed seat and the second fixed seat, and a second internal channel (113) disposed in the front cover portion, which are connected in sequence.

3. The explosion-proof air-cooled ultrasonic transducer device according to claim 2, characterized in that, The piezoelectric ceramic assembly (3) includes a first piezoelectric ceramic element (33), a second piezoelectric ceramic element (34), a first screw (35), a second screw (36), an intermediate cover plate (37), an intermediate block (38), a rear cover plate (39), and a nut (40). One end of the first screw (35) is connected to the front cover portion (13). The outer wall of the first screw (35) is provided with a first piezoelectric ceramic element (33), an intermediate cover plate (37) and an intermediate block (38) in sequence along the direction away from the front cover portion (13). At the same time, the first screw (35) is fixedly connected to one end of the intermediate block (38). One end of the second screw (36) is connected to the other end of the intermediate block (38). The outer wall of the second screw (36) is provided with a second piezoelectric ceramic element (34), a rear cover plate (39) and a nut (40) in sequence along the direction away from the first screw (35). At the same time, the second screw (36) is fixedly connected to the nut (40). The second air intake channel (31) includes a second annular channel (311) formed between the first piezoelectric ceramic element and the first screw, a third annular channel (312) formed between the intermediate cover plate and the first screw, a plurality of first annular through holes (313) disposed in the intermediate block, a fourth annular channel (314) formed between the second piezoelectric ceramic element and the second screw, a fifth annular channel (315) formed between the rear cover plate and the second screw, and a plurality of second annular through holes (316) disposed in the nut.

4. The explosion-proof air-cooled ultrasonic transducer device according to claim 3, characterized in that, The first air outlet channel (12) includes a third air outlet channel (121) disposed in the second fixed seat, an annular air outlet channel (122) disposed in the first fixed seat, and a third internal channel (123) disposed in the air outlet connector.

5. The explosion-proof air-cooled ultrasonic transducer device according to claim 4, characterized in that, The explosion-proof control component (5) includes a temperature detection control module (62), a pressure detection control module (60), an air intake control module, an air exhaust control module, an alarm module, and an ultrasonic power supply module; The back-end assembly (4) includes a back-end cover (41) and a power supply and temperature measurement connector (43). The rear end cover (41) is connected to the end of the outer shell (2) away from the front end component (1), and the power supply and temperature measurement connector (43) is provided on the rear end cover (41); the ultrasonic transducer is electrically connected to the temperature detection and control module and the ultrasonic power supply module through the power supply and temperature measurement connector (43). The front-end component (1) further includes a pressure testing connector (42). The pressure testing connector (42) is provided at one end of the first fixed base (14) away from the piezoelectric ceramic component (3). The pressure testing connector is provided with a pressure detection channel (421), and the pressure detection channel (421) is connected to the annular air outlet channel (122). The air intake control module is used to control the flow rate of cooling gas entering the ultrasonic transducer from the air intake connector (16), so as to ensure that the piezoelectric ceramic assembly is maintained at the normal operating temperature and the shell pressure is maintained within the set normal operating range. The exhaust control module is used to control the flow rate of cooling gas flowing out from the exhaust connector (17) to ensure that the shell pressure is maintained within the set normal operating range; The temperature detection and control module is used to acquire the temperature data of the piezoelectric ceramic component, and control the ultrasonic power supply module to disconnect when the temperature of the piezoelectric ceramic component reaches the set temperature threshold. The pressure detection and control module is connected to the pressure measuring connector (42) to detect the shell pressure data and compare the shell pressure data with the set upper and lower pressure alarm thresholds. If the shell pressure data is greater than the set upper pressure alarm threshold or less than the set lower pressure alarm threshold, the alarm module is controlled to issue an alarm signal, and the exhaust control module or intake control module is started accordingly. If the shell pressure data continues to rise to the set upper power cut-off threshold or fall to the set lower power cut-off pressure threshold after the exhaust control module or intake control module is started, the ultrasonic power module is controlled to disconnect.

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