Auxiliary calibration device for pressure of temperature-salinity-depth sensor without threaded interface

Abstract

The utility model relates to the technical field of ocean detection devices, in particular to an auxiliary calibration device for pressure of a temperature-salinity-depth sensor without a threaded connector. A device body comprises a cylindrical barrel and a barrel cover located at the top of the barrel, a lining is arranged on the inner wall of the barrel, a hanging piece used for being connected with a temperature-salinity-depth sensor is arranged on the barrel cover, and the temperature-salinity-depth sensor is in a suspended state; the auxiliary adjusting mechanism comprises a pressurizing device located at the bottom of the barrel body, an adjusting device located at the top of the barrel cover and an oil pipe, the pressurizing device fills seawater into the barrel body, and the seawater with the rising liquid level completely immerses the temperature-salinity-depth sensor; extruded air in the barrel body is discharged through the adjusting device; the oil pipe is connected with the standard pressing table. According to the utility model, the accurate quantitative calibration of the unthreaded temperature-salinity-depth sensor is realized through the auxiliary standard pressing table.

Description

TECHNICAL FIELD

[0001] The utility model relates to ocean detection device technical field, concretely relates to a kind of auxiliary calibration device of pressure of screwless interface temperature-salinity-depth sensor. BACKGROUND

[0002] Temperature-salinity-depth sensor (CTD) as high-precision marine measuring equipment, its sensor must be calibrated strictly before deployment. Traditionally, standard press bench utilizes oil to carry out pressure calibration, but sensor form is various, interface standard is not unified, especially screwless interface sensor, it is difficult to directly adapt. For this problem, Chinese patent CN207741890U proposes a pressure calibration device for launching type temperature-salinity-depth instrument production, which provides horizontal pressure verification device to assist, so as to expand the range of original detection device. However, the prior art adopts horizontal structure, for threaded sensor, it can be placed horizontally, but for screwless interface temperature-salinity-depth sensor, it will be in inclined state, its detection accuracy is affected by seawater and contact, and detection is not accurate;The volume of prior art is small, and only sensors similar in volume can be detected, while the volumes of different types of temperature-salinity-depth sensors usually differ by several times, even dozens of times, and the versatility is poor. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an auxiliary calibration device for pressure of screwless interface temperature-salinity-depth sensor.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] An auxiliary calibration device for pressure of screwless interface temperature-salinity-depth sensor, comprising a device body for placing the temperature-salinity-depth sensor, and an auxiliary adjusting mechanism cooperating with the device body, wherein:

[0006] The device body comprises a cylinder arranged in a columnar shape, and a cylinder cover located at the top of the cylinder, and a bushing is arranged on the inner wall of the cylinder, and a suspension member for connecting the temperature-salinity-depth sensor is arranged on the cylinder cover;The temperature-salinity-depth sensor is in a suspended state;

[0007] The auxiliary adjusting mechanism comprises a pressurizing device located at the bottom of the cylinder, and an adjusting device and an oil pipe located at the top of the cylinder cover, wherein: the pressurizing device fills seawater into the cylinder, and the seawater rising in liquid level completely immerses the temperature-salinity-depth sensor;The air squeezed in the cylinder is discharged through the adjusting device;The adjusting device is connected to the standard press bench through the oil pipe;

[0008] The pressurizing device is divided into pressurizing device I and pressurizing device II, wherein:

[0009] The pressurizing device I is an electric pressurizer, connected with the cylinder through the interface I, and used for injecting seawater into the cylinder for pre-pressing;

[0010] The pressurizing device II is a manual pressurizer, connected with the cylinder through the interface II, and used for primary fine adjustment of the pre-pressing of the seawater injected into the cylinder.

[0011] The predetermined pressure is injected into the device body through the pressurizing device, and the standard pressure is reached through the adjusting device.

[0012] The predetermined pressure is injected into the device body through the auxiliary adjusting mechanism, and the pressure is adjusted to the standard value,

[0013] The threaded-free temperature-salinity-depth sensor is precisely calibrated through the auxiliary standard pressurizing platform. Specifically, the device body and the auxiliary adjusting mechanism adopt a modular structure, facilitating assembly and disassembly; the cylinder and the cylinder cover are threadedly connected and sealed, ensuring that the cylinder does not leak during the pressurizing process; the suspension piece arranged on the cylinder cover is used to connect the temperature-salinity-depth sensor, ensuring that the temperature-salinity-depth sensor is suspended in the cylinder space; the valve at the top of the adjusting device is opened, the electric pressurizing device is used to inject seawater into the cylinder, and the air in the cylinder is discharged; after the seawater rises to the adjusting device, the oil of the standard pressurizing platform flows to the upper end interface of the adjusting device from the oil pipe, the adjusting valve is closed, and the pressurizing device is continuously used to pressurize to approach the target value; on the one hand, the electric pressurizer is used for rapid pressurization to approach the target value, and the manual pressurizer is used for fine adjustment of the pre-pressing, improving the efficiency of pressurization; on the other hand, the pressure of the standard pressurizing platform is finely adjusted through the handle and the knob, so that the auxiliary calibration device cooperates with the standard pressurizing platform to realize pressure calibration of the threaded-free temperature-salinity-depth sensor.

[0014] In addition, the auxiliary calibration device for the pressure of the threaded-free temperature-salinity-depth sensor according to the above-mentioned utility model has the following additional technical features:

[0015] According to an embodiment of the utility model, the bushing is selected according to the size of the temperature-salinity-depth sensor, and the bushing pre-fills the space in the cylinder; the larger the space filled by the bushing in the cylinder, the shorter the pressurization time.

[0016] The technical solution selects a corresponding bushing according to the size of the temperature-salinity-depth sensor, pre-fills the space in the cylinder, and optimizes the pressurization process, so that the larger the space filled by the bushing in the cylinder, the shorter the pressurization time.

[0017] According to an embodiment of the utility model, the interface I and the interface II are both provided with adjusting valves.

[0018] The technical solution realizes more accurate control of the flow and pressure of the seawater injected into the cylinder by installing adjusting valves on the interfaces.

[0019] According to one embodiment of the present invention, the adjusting device is an oil-water separator. One end of the oil-water separator is connected to a standard pressure test bench via an oil pipe, and the oil-water separator is connected to the device body. The standard pressure test bench includes a handle and a knob. The oil flowing to the oil-water separator is finely adjusted by the handle and the knob so that the pressure inside the cylinder reaches the predetermined pressure.

[0020] The oil-water separator in this technical solution is a calibration oil-water separator of model ALKU502, which is used to isolate the seawater below and the oil above, and to transmit pressure from different directions.

[0021] According to one embodiment of the present invention, a valve is provided between the regulating device and the oil pipe, and the seawater is depressurized after the test is completed through the valve.

[0022] The valve in this technical solution has multiple functions: when the valve is open, it allows the pressurizing device to inject seawater into the cylinder and simultaneously expels excess air from the cylinder; when the valve is closed, it ensures that the standard pressurizing table can inject oil into the regulating device, thereby forming two media, oil and seawater, on both sides of the regulating device.

[0023] Compared with the prior art, this utility model has the following advantages:

[0024] (1) By setting an auxiliary adjustment mechanism, the electric pressure device is used for pre-pressure, the manual pressure device is used for fine-tuning the pre-pressure, and the pressure is fine-tuned again by the handle and knob of the standard pressure table, so as to achieve accurate quantitative calibration of the threadless temperature and salinity sensor.

[0025] (2) The main body of the device adopts pre-filled bushings. The most suitable sleeve combination is selected according to different manufacturers and different models of equipment to reduce the useless space inside the cylinder and greatly improve the pressurization efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] In the diagram: 1. Cylinder body; 2. Bushing; 3. Cylinder cover; 4. Suspension component; 5. Temperature, salinity and depth sensor; 6. Interface I; 7. Pressurization device I; 8. Interface II; 9. Pressurization device II; 10. Adjustment device; 11. Oil pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figure 1 As shown, this embodiment provides an auxiliary calibration device for the pressure of a threadless interface temperature-salinity depth sensor 5, including a device body for placing the temperature-salinity depth sensor 5, and an auxiliary adjustment mechanism that cooperates with the device body, wherein:

[0031] The device body includes a cylindrical body 1 arranged in a columnar shape and a cylinder cover 3 located at the top of the cylindrical body 1. A bushing 2 is provided on the inner wall of the cylindrical body 1, and a suspension member 4 for connecting a temperature, salinity and depth sensor 5 is provided on the cylinder cover 3; the temperature, salinity and depth sensor is in a suspended state.

[0032] The auxiliary adjustment mechanism includes a pressurizing device located at the bottom of the cylinder 1, and an adjustment device 10 and an oil pipe 11 located at the top of the cylinder cover 3. The pressurizing device fills the cylinder 1 with seawater, and the seawater rises to completely submerge the temperature, salinity and depth sensor 5. The compressed air in the cylinder 1 is discharged through the adjustment device 10. The adjustment device 10 is connected to a standard pressure tester through the oil pipe 11.

[0033] The pressurization device is divided into pressurization device I7 and pressurization device II9, wherein:

[0034] The pressurizing device I7 is an electric pressurizer, which is connected to the cylinder 1 through interface I6, and is used to quickly inject seawater into the cylinder 1 for pre-pressurization.

[0035] The pressurizing device II9 is ​​a manual pressurizer, which is connected to the cylinder 1 through interface II8 and is used to make initial fine adjustments to the pre-pressurization of the seawater injected into the cylinder 1.

[0036] A predetermined pressure is injected into the device body through a pressurizing device, and the pressure is adjusted to a standard pressure through an adjusting device 10. This technical solution injects a predetermined pressure into the device body through an auxiliary adjusting mechanism and adjusts the pressure to a standard value, so as to achieve accurate quantitative calibration of the threadless temperature and salinity sensor 5 through an auxiliary standard pressure tester. Specifically, the device body and auxiliary adjustment mechanism adopt a modular structure for easy assembly and disassembly; the cylinder 1 and the cylinder cover 3 are threaded and sealed to ensure that no leakage occurs inside the cylinder 1 during pressurization; the suspension part 4 on the cylinder cover 3 is used to connect the temperature, salinity and depth sensor 5 to ensure that the temperature, salinity and depth sensor 5 is suspended in the space of the cylinder 1; the valve at the top of the adjustment device 10 is opened, and seawater is injected into the cylinder using the electric pressurization device to expel the air in the cylinder 1; after the seawater rises to the adjustment device 10, the oil from the standard pressurization platform flows from the oil pipe 11 to the adjustment device 10, the valve is closed, and the pressurization device is used to pressurize to near the target value; on the one hand, the electric pressurizer is used to quickly pressurize to near the target value, while the manual pressurizer is used to fine-tune the pre-pressure to improve the pressurization efficiency; on the other hand, the pressure of the standard pressurization platform is finely adjusted by the handle and knob, so that the auxiliary calibration device works together with the standard pressurization platform to achieve pressure calibration of the temperature, salinity and depth sensor 5 without threaded interface.

[0037] In addition, the auxiliary calibration device for the pressure of the threadless interface temperature and salinity sensor 5 proposed in this utility model also has the following additional technical features:

[0038] According to one embodiment of the present invention, the bushing 2 is selected according to the size of the temperature, salinity and depth sensor 5, and the bushing 2 pre-fills the space inside the cylinder 1; the larger the space filled by the bushing 2 in the cylinder 1, the shorter the pressurization time.

[0039] This technical solution selects the appropriate bushing 2 according to the size of the temperature, salinity and depth sensor 5, and pre-fills the space inside the cylinder 1 to optimize the pressurization process, so that the bushing 2 fills the space of the cylinder 1 more and the pressurization time is shorter.

[0040] According to one embodiment of the present invention, both interface I6 and interface II8 are equipped with regulating valves.

[0041] This technical solution achieves more precise control over the flow rate and pressure of seawater injected into the cylinder 1 by installing a regulating valve on the interface.

[0042] According to one embodiment of the present invention, the adjusting device 10 is an oil-water separator. One end of the oil-water separator is connected to a standard pressure test bench via an oil pipe 11. The oil-water separator is connected to the device body. The standard pressure test bench includes a handle and a knob. The oil flowing to the oil-water separator is finely adjusted by the handle and the knob so that the pressure inside the cylinder 1 reaches the predetermined pressure.

[0043] The oil-water separator in this technical solution uses a calibration oil-water separator of model ALKU502, which is used to isolate the seawater below and the oil above, and to transmit pressure from different directions, thereby performing secondary fine-tuning of the pressure inside the cylinder.

[0044] According to one embodiment of the present invention, a valve is provided between the regulating device 10 and the oil pipe 11, and the seawater is depressurized after the test is completed through the valve.

[0045] The valve in this technical solution has multiple functions: when the valve is open, it allows the pressurizing device to inject seawater into the cylinder 1 and simultaneously discharge excess air from the cylinder 1; when the valve is closed, it ensures that the standard pressurizing table can inject oil into the regulating device 10, thereby forming two media, oil and seawater, on both sides of the regulating device 10 respectively.

[0046] The usage process of the above embodiments is as follows:

[0047] like Figure 1 As shown, during assembly, firstly, a suitable bushing 2 is selected based on the size of the temperature, salinity, and depth sensor 5, and the space inside the cylinder 1 is pre-filled; then, the temperature, salinity, and depth sensor 5 is connected to the cylinder cover 3 through the suspension component 4, and it is securely placed inside the cylinder 1; after that, a tight seal is achieved by using the threaded connection between the cylinder cover 3 and the cylinder 1.

[0048] In use, seawater is injected into the cylinder 1 using an electric pressurizing device. The seawater rises to the regulating device 10, allowing oil from the standard pressurizing platform to flow from the oil pipe 11 to the regulating device 10. The valve is closed, and initial pressurization is performed using the pressurizing device I7 until the pressure approaches the predetermined value. Next, the seawater pressure is finely adjusted using the pressurizing device II9. When the pressure almost reaches the preset value, a second fine adjustment is made to the oil supply to the regulating device 10 using the handle and knob to ensure the pressure inside the cylinder 1 accurately reaches the predetermined standard value. At this point, the entire auxiliary calibration device achieves precise quantitative calibration of the threadless temperature, salinity, and depth sensor 5 through the auxiliary standard pressurizing platform.

[0049] After calibration, the pressurization device is shut off, and the seawater inside the cylinder 1 is safely depressurized through the valve between the regulating device 10 and the oil pipe 11. Finally, the temperature, salinity, and depth sensor 5 is disassembled and removed. Throughout the entire operation, the modular design of the device body and auxiliary regulating mechanism greatly facilitates assembly and disassembly, significantly improving work efficiency.

[0050] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. An auxiliary calibration device for pressure of a threadless temperature and salinity depth sensor, comprising a device body for placing a temperature and salinity depth sensor (5), and an auxiliary adjustment mechanism cooperating with the device body, characterized in that, The device body includes a cylindrical body (1) arranged in a columnar shape and a cylinder cover (3) located at the top of the cylindrical body (1). A bushing (2) is provided on the inner wall of the cylindrical body (1), and a suspension piece (4) for connecting the temperature, salinity and depth sensor (5) is provided on the cylinder cover (3). The temperature, salinity and depth sensor (5) is in a suspended state. The auxiliary adjustment mechanism includes a pressurizing device located at the bottom of the cylinder (1), and an adjustment device (10) and an oil pipe (11) located at the top of the cylinder cover (3), wherein: the pressurizing device fills the cylinder (1) with seawater, and the seawater level rises to completely submerge the temperature, salinity and depth sensor (5); the compressed air in the cylinder (1) is discharged through the adjustment device (10); the adjustment device (10) is connected to a standard pressure tester through the oil pipe (11); The pressurizing device is divided into pressurizing device I (7) and pressurizing device II (9), wherein: The pressurizing device Ⅰ (7) is an electric pressurizer, which is connected to the cylinder (1) through interface Ⅰ (6) and is used to quickly inject seawater into the cylinder (1) for pre-pressurization; The pressurizing device II (9) is a manual pressurizer, which is connected to the cylinder (1) through interface II (8) and is used to make initial fine adjustments to the pre-pressurization of the seawater injected into the cylinder (1).

2. The auxiliary calibration device for pressure of a threadless interface temperature, salinity, and depth sensor as described in claim 1, characterized in that, The bushing (2) is selected according to the size of the temperature, salinity and depth sensor (5). The bushing (2) pre-fills the space inside the cylinder (1). The larger the space filled by the bushing (2) in the cylinder (1), the shorter the pressurization time.

3. The auxiliary calibration device for pressure of a threadless interface temperature, salinity, and depth sensor as described in claim 2, characterized in that, Both interface I (6) and interface II (8) are equipped with regulating valves.

4. The auxiliary calibration device for pressure of a threadless interface temperature, salinity, and depth sensor as described in claim 1, characterized in that, The regulating device (10) is an oil-water separator. One end of the oil-water separator is connected to the standard pressure tester via an oil pipe. The oil-water separator is connected to the main body of the device. The standard pressure tester includes a handle and a knob. The seawater injected into the cylinder (1) is finely adjusted by the handle and the knob so that the pressure inside the cylinder (1) reaches the predetermined pressure.

5. The auxiliary calibration device for pressure of a threadless interface temperature, salinity, and depth sensor as described in claim 4, characterized in that, A valve is installed between the regulating device (10) and the oil pipe (11) to depressurize the seawater after the test is completed.

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