Oil storage tank top corrosion detection device based on ultrasonic guided waves

Abstract

The utility model discloses an oil product storage tank top corrosion detection device based on ultrasonic guided wave in the technical field of detection devices, which comprises a detection mechanism, the detection mechanism comprises a tank top plate, the top of the tank top plate is concavely provided with an assembly groove, the inner wall of the assembly groove is symmetrically provided with two slots, a protective shell is movably inserted in the assembly groove, and the protective shell is provided with a plurality of slots. An electric push rod is arranged in the protective shell, and the extension end of the electric push rod is fixedly connected with an ultrasonic detector; the limiting mechanism comprises a limiting piece, two movable grooves are formed in the side, facing the inserting groove, of the protective shell, gear nuts are rotationally arranged in the movable grooves, and one end of the limiting piece penetrates through the gear nuts and is inserted into the movable grooves; when the device is used, when the ultrasonic detector moves downwards, the toothed plate is driven to move downwards synchronously, at the moment, the toothed plate drives the gear nut to rotate, so that the limiting piece is promoted to move and be inserted into the inserting groove, at the moment, the protective shell is fixed into the assembling groove through the limiting piece, and therefore the device is more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves. Background Technique

[0002] An oil storage tank, abbreviated as an oil tank or storage tank, is a large container with a relatively regular shape for storing oil products. It can be divided into metal oil tanks and non-metal oil tanks according to different construction materials. The oil storage tank needs to detect the corrosion condition of the top of the storage tank through an ultrasonic guided wave device to reduce the possibility of danger to the storage tank.

[0003] When some existing detection devices are assembled, they need to be fixed by multiple bolts. At this time, the operator needs to tighten the bolts at one time, so the assembly of the detection device is more troublesome. For this reason, we propose a corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves to solve the above-mentioned problems. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of the present invention, to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the utility model is to provide a corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves, which can solve the problem that some existing detection devices need to be fixed by multiple bolts during assembly. At this time, the operator needs to tighten the bolts at one time, so the assembly of the detection device is more troublesome.

[0006] To solve the above technical problems, the utility model provides a corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves, adopting the following technical solutions: including a detection mechanism, which includes a tank top plate. A mounting groove is recessed downward on the top of the tank top plate. Two slots are symmetrically opened on the inner wall of the mounting groove. A protective shell is movably inserted into the mounting groove. An electric push rod is arranged in the protective shell. The extending end of the electric push rod is fixedly connected with an ultrasonic detector.

[0007] A limiting mechanism, which includes a limiting member. Two movable grooves are opened on one side of the protective shell facing the slots. A gear nut is rotatably arranged in the movable groove. One end of the limiting member penetrates through the gear nut and is inserted into the movable groove. The other end of the limiting member is inserted into the slot. A toothed plate adapted to the gear nut is fixedly connected to the outer wall of the ultrasonic detector. The toothed plate meshes with the gear nut.

[0008] By adopting the above technical solution, in this solution, the protective shell is first inserted into the assembly groove on the tank top plate. Then, the ultrasonic detector is pushed down by the electric push rod, passes through the tank top plate and is inserted into the storage tank. Then, the corrosion degree of the tank top of the storage tank is detected by ultrasonic waves. When the ultrasonic detector moves down, the toothed plate moves down synchronously. At this time, the gear nut is driven to rotate by the toothed plate, so as to promote the movement of the limiting part and insert it into the slot. At this time, the protective shell is fixed in the assembly groove by the limiting part.

[0009] Optionally, a handle is inserted downward at the top of the protective shell. The lower end of the handle is inserted into the protective shell and fixedly connected with a limiting plate. A spring is fixedly connected to the top surface of the limiting plate, and the upper end of the spring is fixedly connected to the top of the inner wall of the protective shell.

[0010] By adopting the above technical solution, when the electric push rod drives the ultrasonic detector to move upward in this solution, the limiting plate and the handle are pushed upward. At this time, the spring contracts and deforms, so that it is convenient for the operator to take the protective shell through the handle.

[0011] Optionally, two through holes are symmetrically formed on the protective shell, and filter plates are fixedly arranged in the two through holes.

[0012] By adopting the above technical solution, in this solution, external air can enter the protective shell through the through holes, so as to increase the heat dissipation speed in the protective shell, and the air entering the protective shell is filtered by the filter plates.

[0013] Optionally, a pneumatic part is rotatably inserted on the filter plate. One end of the pneumatic part penetrates through the scraper and is fixedly provided with a scraper. When the pneumatic part drives the scraper to rotate, the scraper sweeps the filter plate.

[0014] By adopting the above technical solution, when air enters the inside of the protective shell through the through holes in this solution, the pneumatic part is driven to rotate by the air flow. At this time, the scraper is driven to rotate by the pneumatic part to sweep the dust on the filter plate.

[0015] Optionally, the pneumatic part includes a rotating shaft and a plurality of fan blades. The rotating shaft is rotatably inserted on the filter plate. One end of the rotating shaft penetrates through the filter plate and is fixedly connected with the scraper. The plurality of fan blades are arranged in a circumferential distribution on the rotating shaft, and the plurality of fan blades are all arranged in the through holes.

[0016] By adopting the above technical solution, when the air flow passes through the through holes in this solution, the plurality of fan blades and the rotating shaft are driven to rotate. At this time, the scraper is driven to rotate by the rotating shaft to sweep the dust on the filter plate.

[0017] Optionally, the ultrasonic detector includes a machine body and a probe. The machine body is fixedly connected to the extending end of the electric push rod, the probe is fixedly arranged at the bottom of the machine body, and the probe passes through the assembly groove and extends to the bottom of the tank top plate.

[0018] By adopting the above technical solution, when the probe is inserted into the storage tank, the machine body emits ultrasonic waves through the probe, and at this time, the corrosion degree of the top of the storage tank is detected by the ultrasonic waves.

[0019] Optionally, the limiting member includes two screw rods and an insertion plate. The two screw rods are respectively inserted into two movable grooves and are in threaded connection with the gear nuts. One ends of the two screw rods away from the gear nuts are fixedly connected to the insertion plate, and the insertion plate is movably inserted into the inner wall of the insertion slot.

[0020] By adopting the above technical solution, in this solution, when the toothed plate drives the gear nut to rotate, the two screw rods drive the insertion plate to move and insert into the insertion slot at the same time, so as to facilitate fixing the protective shell in the assembly slot.

[0021] Optionally, the gear nut includes an internally threaded tube and a gear. The internally threaded tube is rotatably arranged in the movable groove. The internal thread on the inner wall of the internally threaded tube is adapted to the external thread of the screw rod. The gear is fixedly sleeved on the internally threaded tube and meshes with the toothed plate.

[0022] By adopting the above technical solution, in this solution, when the toothed plate moves downward, it drives the gear and the internally threaded tube to rotate. At this time, the screw rod drives the insertion plate to move and insert into the insertion slot, so as to fix the protective shell in the assembly slot.

[0023] In summary, the present utility model has at least the following beneficial effects: 1. When the ultrasonic detector moves downward, it drives the toothed plate to move downward synchronously. At this time, the toothed plate drives the gear nut to rotate, so as to promote the limiting member to move and insert into the insertion slot. At this time, the protective shell is fixed in the assembly slot through the limiting member, so the device is more convenient to install during installation;

[0024] 2. When air enters the inside of the protective shell through the through hole, the pneumatic member is driven to rotate by the air flow. At this time, the scraping plate is driven to rotate by the pneumatic member to scrape the dust on the filter plate, so as to reduce the possibility of dust clogging the filter plate, and it is more convenient to clean the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0027] Figure 2 is a partial three-dimensional unfolded structural sectional view of the tank top plate of the present utility model;

[0028] Figure 3 This is a partial three-dimensional unfolded structural sectional view of the present utility model.

[0029] Explanation of reference numerals in the drawings: 100, detection mechanism; 101, tank top plate; 102, assembly groove; 103, slot; 104, protective shell; 104a, handle; 104b, limiting plate; 104c, spring; 104d, through hole; 104e, filter plate; 104f, pneumatic member; 104f1, rotating shaft; 104f2, fan blade; 104g, scraper; 105, electric push rod; 106, ultrasonic detector; 106a, body; 106b, probe

[0030] 200, limiting mechanism; 201, limiting member; 201a, screw; 201b, insertion plate; 202, movable groove; 203, gear nut; 203a, internal thread tube; 203b, gear; 204, toothed plate. Detailed description of the specific implementation

[0031] The following will Figures 1-3 further describe the present utility model in detail with reference to the appended

[0032] In the first embodiment, referring to Figures 1-3 , in this embodiment, in order to solve the problem that some existing detection devices need to be fixed by multiple bolts during assembly, and at this time, the operator needs to tighten the bolts at one time, so the assembly of the detection device is more troublesome. The present utility model discloses an oil storage tank top corrosion detection device based on ultrasonic guided waves,

[0033] which includes a detection mechanism 100, which includes a tank top plate 101. The tank top plate 101 is a partial structure of the tank top of the storage tank. An assembly groove 102 is recessed downward from the top of the tank top plate 101. Two slots 103 are symmetrically opened on the inner wall of the assembly groove 102. A protective shell 104 is movably inserted into the assembly groove 102. The assembly groove 102 facilitates the assembly of the protective shell 104, and at the same time, the protective shell 104 facilitates the protection of the mechanisms inside it.

[0034] An electric push rod 105 is arranged inside the protective case 104. A handle 104a is inserted downward from the top of the protective case 104. The handle 104a is in a U shape. The lower end of the handle 104a is inserted into the protective case 104 and fixedly connected with a limiting plate 104b. The top surface of the limiting plate 104b is fixedly connected with a spring 104c. The upper end of the spring 104c is fixedly connected with the top of the inner wall of the protective case 104. When the electric push rod 105 drives the ultrasonic detector 106 to move downward, it separates from the limiting plate 104b. At this time, the spring 104c pushes the limiting plate 104b and the handle 104a to move downward and be received into the protective case 104. When the electric push rod 105 drives the ultrasonic detector 106 to move upward, it pushes the limiting plate 104b and the handle 104a to move upward. At this time, the spring 104c contracts and deforms, so as to facilitate the operator to take the protective case 104 through the handle 104a.

[0035] The extending end of the electric push rod 105 is fixedly connected with an ultrasonic detector 106. The ultrasonic detector 106 is a prior art. The ultrasonic detector 106 includes a body 106a and a probe 106b. The body 106a is fixedly connected to the extending end of the electric push rod 105. The probe 106b is fixedly arranged at the bottom of the body 106a. The probe 106b passes through the assembly groove 102 and extends into the bottom of the tank top plate 101. When the probe 106b is inserted into the storage tank, the body 106a emits ultrasonic waves through the probe 106b. At this time, the corrosion degree of the tank top of the storage tank is detected by the ultrasonic waves.

[0036] A limiting mechanism 200, which includes a limiting part 201. Two moving grooves 202 are opened on one side of the protective case 104 facing the slot 103. A gear nut 203 is rotatably arranged in the moving groove 202. One end of the limiting part 201 passes through the gear nut 203 and is inserted into the moving groove 202. The other end of the limiting part 201 is inserted into the slot 103. When the gear nut 203 rotates, the limiting part 201 moves and is inserted into the slot 103. At this time, the protective case 104 is fixed in the assembly groove 102 through the limiting part 201.

[0037] The outer wall of the ultrasonic detector 106 is fixedly connected with a toothed plate 204 adapted to the gear nut 203. The gear nut 203 includes an inner threaded tube 203a and a gear 203b. The inner threaded tube 203a is rotatably arranged in the movable slot 202. The internal thread on the inner wall of the inner threaded tube 203a is adapted to the external thread of the screw rod 201a. The gear 203b is fixedly sleeved on the inner threaded tube 203a and meshes with the toothed plate 204. When the toothed plate 204 moves downward, it drives the gear 203b and the inner threaded tube 203a to rotate. At this time, the screw rod 201a drives the insertion plate 201b to move and insert into the insertion slot 103, so as to fix the protective shell 104 in the assembly slot 102. When the toothed plate 204 moves upward, it drives the gear 203b and the inner threaded tube 203a to rotate in the reverse direction. At this time, the screw rod 201a drives the insertion plate 201b to move and separate from the insertion slot 103, thus facilitating the operator to disassemble the protective shell 104.

[0038] The toothed plate 204 meshes with the gear nut 203. The limiting member 201 includes two screw rods 201a and an insertion plate 201b. The two screw rods 201a are respectively inserted into the two movable slots 202 and are threadedly inserted into the gear nut 203. The ends of the two screw rods 201a far from the gear nut 203 are fixedly connected with the insertion plate 201b. The insertion plate 201b is movably inserted into the inner wall of the insertion slot 103. The two screw rods 201a are limited by the insertion plate 201b. When the toothed plate 204 drives the gear nut 203 to rotate, the two screw rods 201a drive the insertion plate 201b to move and insert into the insertion slot 103 at the same time, so as to facilitate fixing the protective shell 104 in the assembly slot 102. Therefore, the device is more convenient to install.

[0039] The specific working principle is as follows: First, insert the protective shell 104 into the assembly slot 102 on the tank top plate 101, and then push the ultrasonic detector 106 downward through the electric push rod 105 to pass through the tank top plate 101 and insert it into the storage tank. Then, use ultrasonic waves to detect the corrosion degree of the tank top of the storage tank;

[0040] When the ultrasonic detector 106 moves downward, it drives the toothed plate 204 to move downward synchronously. At this time, the toothed plate 204 drives the gear nut 203 to rotate, so as to promote the limiting member 201 to move and insert into the insertion slot 103. At this time, the protective shell 104 is fixed in the assembly slot 102 through the limiting member 201. Therefore, the device is more convenient to install;

[0041] On the contrary, when the electric push rod 105 drives the ultrasonic detector 106 to move upward, the toothed plate 204 moves upward synchronously. At this time, the toothed plate 204 drives the gear nut 203 to rotate and promotes the limiting member 201 to separate from the insertion slot 103, so that the protective shell 104 loses its limit, and then it is convenient for the operator to disassemble the protective shell 104.

[0042] Embodiment 2, refer to Figure 1 、 3, in this embodiment, in order to solve the problem that a large amount of dust is likely to adhere to the heat dissipation holes of some existing detection devices after long-term use, and it is rather troublesome to clean the detection device installed on the top of the storage tank. Based on the same concept as in the above-mentioned Embodiment 1, this corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves further includes:

[0043] Two through holes 104d are symmetrically formed on the protective shell 104. Filter plates 104e are fixedly arranged in both of the two through holes 104d. Through the through holes 104d, external air can enter the protective shell 104, thereby increasing the heat dissipation speed of the heat inside the protective shell 104. And the air entering the protective shell 104 is filtered by the filter plates 104e, thereby reducing the possibility of sundries in the air continuously entering the inside of the protective shell 104.

[0044] A pneumatic member 104f is rotatably inserted on the filter plate 104e. One end of the pneumatic member 104f penetrates through the scraping plate 104g and is fixedly provided with the scraping plate 104g. When the pneumatic member 104f drives the scraping plate 104g to rotate, the scraping plate 104g sweeps the filter plate 104e. When air enters the inside of the protective shell 104 through the through hole 104d, the pneumatic member 104f is driven to rotate by the air flow. At this time, the pneumatic member 104f drives the scraping plate 104g to rotate and sweep the dust on the filter plate 104e, thereby reducing the possibility of the filter plate 104e being blocked by dust, and it is more convenient to clean the filter plate 104e.

[0045] The specific working principle is: the pneumatic member 104f is driven to rotate by the air flow. At this time, the pneumatic member 104f drives the scraping plate 104g to rotate and sweep the dust on the filter plate 104e, thereby reducing the possibility of the filter plate 104e being blocked by dust, and it is more convenient to clean the filter plate 104e.

[0046] Embodiment 3, referring to Figure 3 , in this embodiment, in order to solve the problem that an operator needs to regularly clean the dust in the heat dissipation holes when some existing devices are in use. Based on the same concept as in the above-mentioned Embodiment 1, this corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves further includes:

[0047] The pneumatic member 104f includes a rotating shaft 104f1 and a plurality of fan blades 104f2. The rotating shaft 104f1 is rotatably inserted on the filter plate 104e. One end of the rotating shaft 104f1 penetrates through the filter plate 104e and is fixedly connected to the scraping plate 104g. The plurality of fan blades 104f2 are arranged in a circumferential distribution on the rotating shaft 104f1, and the plurality of fan blades 104f2 are all arranged in the through hole 104d.

[0048] The specific working principle is as follows: When the air flow passes through the through hole 104d, it drives a plurality of fan blades 104f2 and the rotating shaft 104f1 to rotate. At this time, the rotating shaft 104f1 drives the scraper 104g to rotate and scrape the dust on the filter plate 104e. Therefore, the device does not require the operator to clean it manually frequently.

[0049] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An oil storage tank roof corrosion detection device based on ultrasonic guided waves, characterized in that: Including, a detection mechanism (100), which includes a tank top plate (101). A fitting groove (102) is recessed downward at the top of the tank top plate (101). Two slots (103) are symmetrically formed in the inner wall of the fitting groove (102). A protective shell (104) is movably inserted into the fitting groove (102). An electric push rod (105) is arranged in the protective shell (104). The extending end of the electric push rod (105) is fixedly connected to an ultrasonic detector (106); a limiting mechanism (200), which includes a limiting member (201). Two moving grooves (202) are formed on one side of the protective shell (104) facing the slot (103). A gear nut (203) is rotatably arranged in the moving groove (202). One end of the limiting member (201) passes through the gear nut (203) and is inserted into the moving groove (202). The other end of the limiting member (201) is inserted into the slot (103). A toothed plate (204) adapted to the gear nut (203) is fixedly connected to the outer wall of the ultrasonic detector (106). The toothed plate (204) meshes with the gear nut (203).

2. The corrosion detection device for the tank top of an oil storage tank based on ultrasonic guided waves according to claim 1, wherein: A handle (104a) is inserted downward into the top of the protective shell (104). The lower end of the handle (104a) is inserted into the protective shell (104) and fixedly connected to a limiting plate (104b). A spring (104c) is fixedly connected to the top surface of the limiting plate (104b). The upper end of the spring (104c) is fixedly connected to the top of the inner wall of the protective shell (104).

3. The corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves according to claim 1, wherein: Two through holes (104d) are symmetrically formed in the protective shell (104). Filter plates (104e) are fixedly arranged in the two through holes (104d).

4. The corrosion detection device for the tank top of an oil storage tank based on ultrasonic guided waves according to claim 3, wherein: A pneumatic member (104f) is rotatably inserted into the filter plate (104e). One end of the pneumatic member (104f) passes through a scraper (104g) and is fixedly provided with the scraper (104g). When the pneumatic member (104f) drives the scraper (104g) to rotate, the scraper (104g) sweeps the filter plate (104e).

5. The corrosion detection device for the tank top of an oil storage tank based on ultrasonic guided waves according to claim 4, wherein: The pneumatic member (104f) includes a rotating shaft (104f1) and a plurality of fan blades (104f2). The rotating shaft (104f1) is rotatably inserted into the filter plate (104e). One end of the rotating shaft (104f1) passes through the filter plate (104e) and is fixedly connected to the scraper (104g). The plurality of fan blades (104f2) are circumferentially distributed on the rotating shaft (104f1). The plurality of fan blades (104f2) are all arranged in the through hole (104d).

6. The corrosion detection device for the tank top of an oil storage tank based on ultrasonic guided waves according to claim 1, wherein: The ultrasonic detector (106) includes a body (106a) and a probe (106b). The body (106a) is fixedly connected to the extending end of the electric push rod (105). The probe (106b) is fixedly arranged at the bottom of the body (106a). The probe (106b) passes through the fitting groove (102) and extends into the bottom of the tank top plate (101).

7. The corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves according to claim 1, wherein: The limiting member (201) includes two screw rods (201a) and an insertion plate (201b). The two screw rods (201a) are respectively inserted into two movable slots (202) and are threadedly inserted with a gear nut (203). One end of the two screw rods (201a) away from the gear nut (203) is fixedly connected to the insertion plate (201b), and the insertion plate (201b) is movably inserted into the inner wall of the insertion slot (103).

8. The corrosion detection device for the top of an oil storage tank based on ultrasonic guided waves according to claim 7, characterized in that: The gear nut (203) includes an internally threaded tube (203a) and a gear (203b). The internally threaded tube (203a) is rotatably arranged in the movable slot (202). The internal thread on the inner wall of the internally threaded tube (203a) is adapted to the external thread of the screw rod (201a). The gear (203b) is fixedly sleeved on the internally threaded tube (203a) and meshes with the toothed plate (204).

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