An explosion-proof air-cooled transducer device with integral amplitude assembly

Abstract

The application discloses an explosion-proof air-cooled transducer device with an integrated amplitude variation assembly, which comprises an ultrasonic transducer and an integrated amplitude variation assembly, wherein the ultrasonic transducer is connected with the integrated amplitude variation assembly; the ultrasonic transducer comprises a front end assembly, a shell, a piezoelectric ceramic assembly and a rear end assembly; one end of the shell is connected with the front end assembly, the other end of the shell is connected with the rear end assembly, the piezoelectric ceramic assembly is arranged in the shell, one end of the piezoelectric ceramic assembly is connected with one end of the front end assembly, and the other end of the front end assembly is connected with the integrated amplitude variation assembly; the integrated amplitude variation assembly can reduce the heat generation of the piezoelectric ceramic assembly, meanwhile, a cooling gas channel is formed among the front end assembly, the shell and the piezoelectric ceramic assembly, so that the inside and outside of the piezoelectric ceramic assembly are cooled; the cooling gas channel is arranged, so that the ultrasonic transducer can normally work in a high-temperature environment; meanwhile, the integrated amplitude variation assembly is designed, and the heat generation of the piezoelectric ceramic assembly is further reduced through the integrated amplitude variation assembly, so that the ultrasonic transducer can normally work.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic transducer device technology, and in particular to an explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly. 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 leads to high heat transfer to the piezoelectric ceramic elements within the transducer. Additionally, some of the energy generated during operation is also converted into heat, causing the piezoelectric ceramic elements to heat up. Due to the characteristics of piezoelectric ceramic materials, such as their relatively low Curie temperature (around 120°C), the piezoelectric ceramic elements will depolarize and malfunction when the temperature exceeds 80°C, potentially even causing damage. Therefore, in practice, to ensure the long-term reliability of the transducer, the operating temperature is generally required to be controlled below 80°C, but this also limits the effectiveness of the treatment. Therefore, how to ensure the stable operation of the piezoelectric ceramic elements in ultrasonic transducers for extended periods in high-temperature environments is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This invention provides an explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly to overcome the technical problem that ultrasonic transducers are unstable and prone to damage in high-temperature environments.

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

[0005] An explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly is characterized in that it includes an ultrasonic transducer and an integrated amplitude transformer assembly, wherein the ultrasonic transducer is connected to the integrated amplitude transformer assembly.

[0006] The ultrasonic transducer includes a front-end component, a housing, a piezoelectric ceramic component, and a rear-end component. One end of the housing is connected to the front-end component, and the other end is connected to the rear-end component. The piezoelectric ceramic component is disposed inside the housing, and one end is connected to one end of the front-end component. The other end of the front-end component is connected to the integral amplitude transformer component. The integral amplitude transformer component can reduce the heat generation of the piezoelectric ceramic component. At the same time, a connected cooling gas channel is formed between the front-end component, the housing, and the piezoelectric ceramic component, thereby cooling the inside and outside of the piezoelectric ceramic component.

[0007] Furthermore, the cooling gas channel includes a first inlet channel, a second inlet channel, a first outlet channel, and a second outlet channel; the front-end assembly is provided with the first inlet channel and the first outlet channel, the piezoelectric ceramic assembly has a second inlet channel inside, and the piezoelectric ceramic assembly is connected to the inner wall of the outer shell to form the second outlet channel; the cooling gas can enter the second inlet channel from the first inlet channel to cool the inside of the piezoelectric ceramic assembly, then enter the second outlet channel from the second inlet channel to cool the outside of the piezoelectric ceramic assembly, and finally the cooling gas enters the first outlet channel from the second outlet channel and is discharged.

[0008] Furthermore, the integral luffing assembly includes a tool head and a luffing rod, which are integrally formed, and the luffing rod is connected to the other end of the front-end assembly; the luffing rod includes an integrally connected tool head connecting rod and a transducer connecting rod, the tool head connecting rod being connected to the tool head, and the transducer connecting rod being connected to the other end of the front-end assembly; the tool head connecting rod includes a plurality of luffing sections connected in sequence, and each luffing section includes two correspondingly connected tapered rods.

[0009] Further, 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; the air inlet connector and the air outlet connector are disposed opposite each other at the end of the first fixing seat away from the piezoelectric ceramic component, and the end closer 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; the first air inlet channel includes a first internal channel disposed in the air inlet connector, a first annular channel disposed between the first fixing seat and the second fixing seat, and a second internal channel disposed in the front cover portion, which are connected in sequence.

[0010] Further, 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; one end of the first screw is connected to the front cover portion, and the outer wall of the first screw is sequentially provided with the first piezoelectric ceramic element, the intermediate cover plate, and the intermediate block along the direction away from the front cover portion, while the first screw is fixedly connected to one end of the intermediate block; one end of the second screw is connected to the other end of the intermediate block, and the outer wall of the second screw is sequentially provided with the second piezoelectric ceramic element, the rear cover plate, and the nut along the direction away from the first screw, while the second screw is fixedly connected to the nut; 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.

[0011] 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.

[0012] Furthermore, the explosion-proof air-cooled transducer device also includes an explosion-proof control component, which is connected to the ultrasonic transducer. The explosion-proof control component controls the entry of cooling gas into the cooling gas channel while simultaneously detecting and controlling the pressure on the housing. The explosion-proof control component includes a temperature detection and control module, a pressure detection and control module, an air inlet control module, an air outlet control module, an alarm module, and an ultrasonic power supply module. The rear-end assembly 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 furthest from the front-end assembly, and the power supply and temperature measurement connector is provided on the rear-end cover. The ultrasonic transducer connects to the housing via the power supply and temperature measurement connector. The temperature detection and control module and the ultrasonic power supply module are electrically connected; the front-end component also includes a pressure measuring connector, which is provided at the end of the first fixing base away from the piezoelectric ceramic component. The pressure measuring connector has a pressure detection channel, which is connected to the annular air outlet channel; the air inlet control module is used to control the flow rate of cooling gas entering the ultrasonic transducer from the air inlet connector, ensuring that the piezoelectric ceramic component is maintained at the normal operating temperature while ensuring that the shell pressure is maintained within the set normal operating range; the air outlet control module is used to control the flow rate of cooling gas flowing out from the air outlet connector, ensuring 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 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.

[0013] Beneficial effects: This invention cools the inside and outside of the piezoelectric ceramic component by setting a cooling gas channel inside the piezoelectric ceramic component, enabling the ultrasonic transducer to operate normally in high-temperature environments. At the same time, the design of an integrated amplitude transformer further reduces the heat generation of the piezoelectric ceramic component, thereby ensuring the normal operation of the ultrasonic transducer. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the ultrasonic transducer and the integrated amplitude transformer in an explosion-proof air-cooled transducer device with an integrated amplitude transformer according to the present invention.

[0016] Figure 2 In this invention, an explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly includes an ultrasonic transducer and an integrated amplitude transformer assembly. Figure 1 First sectional view at point AA;

[0017] Figure 3 In this invention, an explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly includes an ultrasonic transducer and an integrated amplitude transformer assembly. Figure 1 Second sectional view at point AA;

[0018] Figure 4 This is a schematic diagram showing the connection of the ultrasonic transducer, the integrated amplitude transformer, and the explosion-proof control component in an embodiment of the present invention.

[0019] In the picture:

[0020] 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;

[0021] 2. Outer shell;

[0022] 3. Piezoelectric ceramic assembly; 31. Second air intake channel; 311. Second annular channel; 312. Third annular channel; 313. Several first annular through holes; 314. Fourth annular channel; 315. Fifth annular channel; 316. Several second annular through holes; 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;

[0023] 4. Rear-end components; 41. Rear-end cover; 42. Pressure test connector; 421. Pressure detection channel; 43. Power supply and temperature measurement connector;

[0024] 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.

[0025] 7. Integral luffing assembly; 71. Tool head; 72. Luffing rod; 721. Tool head connecting rod; 722. Transducer connecting rod; 73. Flange. Detailed Implementation

[0026] 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.

[0027] This embodiment provides an explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly, such as... Figures 1 to 3 As shown, it includes an ultrasonic transducer and an integrated amplitude transformer 7, wherein the ultrasonic transducer is connected to the integrated amplitude transformer 7.

[0028] Specifically, the ultrasonic transducer includes a front-end component 1, a housing 2, a piezoelectric ceramic component 3, and a rear-end component 4. One end of the housing 2 is connected to the front-end component 1, and the other end is connected to the rear-end component 4. The piezoelectric ceramic component 3 is disposed inside the housing 2, and one end is connected to one end of the front-end component 1. The other end of the front-end component 1 is connected to the integral amplitude transformer 7. The integral amplitude transformer 7 can reduce the heat generation of the piezoelectric ceramic component 3. At the same time, a connected cooling gas channel is formed between the front-end component 1, the housing 2, and the piezoelectric ceramic component 3, thereby cooling the inside and outside of the piezoelectric ceramic component 3.

[0029] In a specific embodiment, the cooling gas channel includes a first air inlet channel 11, a second air inlet channel 31, a first air outlet channel 12, and a second air outlet channel 32; the front-end component 1 is provided with the first air inlet channel 11 and the first air outlet channel 12, the piezoelectric ceramic component 3 is provided with the second air inlet channel 31 inside, and the 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 cooling gas can 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, and finally the cooling gas enters the first air outlet channel 12 from the second air outlet channel 32 and is discharged.

[0030] 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.

[0031] 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.

[0032] In a specific embodiment, the integral luffing assembly 7 includes a tool head 71 and a luffing rod 72, which are integrally formed, and the luffing rod 72 is connected to the other end of the front-end assembly 1. The luffing rod 72 includes an integrally connected tool head connecting rod 721 and a transducer connecting rod 722. The tool head connecting rod 721 is connected to the tool head 71, and the transducer connecting rod 722 is connected to the other end of the front-end assembly. The tool head connecting rod 721 includes a plurality of luffing sections connected in sequence, and each luffing section includes two correspondingly connected tapered rods, such as... Figure 2 and Figure 3 As shown.

[0033] Specifically, the outer wall of the transducer connecting rod 722 is fitted with a flange 73. In actual application, the transducer is installed through the flange. The end of the transducer connecting rod 722 near the front end assembly 1 is provided with an internal thread and is connected to the front end assembly 1 through a screw.

[0034] Specifically, in this embodiment, the amplitude transformer is designed as a structure with several conical structures connected together. Through gradient transition, the peak stress gradient between the input and output ends can be reduced, resulting in high amplification factor and long service life. At the same time, it can avoid installation errors and ensure stress concentration. Meanwhile, this integrated structure allows the ultrasonic transducer to adjust the load matching between the transducer and the ultrasonic tool head through the amplitude transformer, reducing the resonant impedance and enabling it to operate at the resonant frequency, thus improving the electroacoustic conversion efficiency. It also effectively reduces the heat generation of the ultrasonic transducer, ensuring that the high-power ultrasonic transducer can work continuously and improving the service life of the ultrasonic transducer.

[0035] 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; the first fixing seat 14 is provided with the air inlet connector 16 and the air outlet connector 17 opposite each other at one 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; the first air inlet channel 11 includes a first internal channel 111 disposed in the air inlet connector, a first annular channel 112 disposed between the first fixing seat and the second fixing seat, and a second internal channel 113 disposed in the front cover portion, which are connected in sequence.

[0036] 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. 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 the first piezoelectric ceramic element 33, the intermediate cover plate 37, and the 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 the second piezoelectric ceramic element 34, the rear cover plate 39, and the 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.

[0037] Specifically, 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] In this embodiment, as Figure 4As shown, an explosion-proof air-cooled transducer device with an integrated amplitude transformer also includes an explosion-proof control component 5, which is connected to the ultrasonic transducer. The explosion-proof control component 5 controls the cooling gas to enter the cooling gas channel and simultaneously detects and controls the pressure on the housing 2. The explosion-proof control component 5 includes a temperature detection and control module 62, a pressure detection and control module 60, an air inlet control module, an air outlet 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Specifically, the pressure detection and control module is connected to the pressure measuring connector 42 to detect the shell pressure data and compare it 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 activated 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 activated, the ultrasonic power module is controlled to disconnect.

[0050] Specifically, the pressure detection and control module detects the shell pressure through the pressure test connector 42. When the shell pressure is lower than the set power cut-off pressure limit of 50Pa, the pressure detection and control module controls the ultrasonic power module to disconnect.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 transducer device with an integrated amplitude transformer assembly, characterized in that, It includes an ultrasonic transducer and an integrated amplitude transformer assembly (7), wherein the ultrasonic transducer is connected to the integrated amplitude transformer assembly (7). The ultrasonic transducer includes a front-end component (1), a housing (2), a piezoelectric ceramic component (3), and a rear-end component (4); one end of the housing (2) is connected to the front-end component (1), and the other end is connected to the rear-end component (4); the piezoelectric ceramic component (3) is disposed inside the housing (2), and one end is connected to one end of the front-end component (1); the other end of the front-end component (1) is connected to the integral amplitude transformer component (7); the integral amplitude transformer component (7) can reduce the heat generation of the piezoelectric ceramic component (3), and at the same time, a connected cooling gas channel is formed between the front-end component (1), the housing (2), and the piezoelectric ceramic component (3), thereby cooling the inside and outside of the piezoelectric ceramic component (3); The cooling gas passage includes a first air inlet passage (11), a second air inlet passage (31), a first air outlet passage (12), and a second air outlet passage (32); 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. The piezoelectric ceramic component (3) is connected to the inner wall of the outer shell (2) to form a second air outlet channel (32). Cooling gas can enter the second air inlet channel (31) through 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) through 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.

2. The explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly according to claim 1, characterized in that, The integral amplitude converter assembly (7) includes a tool head (71) and an amplitude converter rod (72), the tool head (71) and the amplitude converter rod (72) are an integral structure, and the amplitude converter rod (72) is connected to the other end of the front end assembly (1); The amplitude transformer (72) includes an integrally connected tool head connecting rod (721) and transducer connecting rod (722). The tool head connecting rod (721) is connected to the tool head (71), and the transducer connecting rod (722) is connected to the other end of the front end assembly. The tool head connecting rod (721) includes a plurality of amplitude-changing rods connected in sequence, and each amplitude-changing rod includes two correspondingly connected tapered rods.

3. The explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly 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.

4. The explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly according to claim 3, 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.

5. The explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly according to claim 4, 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.

6. The explosion-proof air-cooled transducer device with an integrated amplitude transformer assembly according to claim 5, characterized in that, It also includes an explosion-proof control component (5), which is connected to an ultrasonic transducer; the explosion-proof control component (5) controls the cooling gas to enter the cooling gas channel and detects and controls the pressure on the shell (2). 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 outlet 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.

Images