Device for preparing shell of deep sea magnetometer

Abstract

The utility model discloses a device for preparing a shell of a deep sea magnetometer, which belongs to the field of magnetometers and comprises a housing, the housing comprises a shell body and a shell cover which are detachably connected with each other, the shell body is used for containing a cooling medium, a support is fixedly mounted in the shell body, and a hollow mold is fixedly mounted on the support; a pump is further fixedly installed on the housing, the liquid inlet end of the pump is connected with a liquid inlet pipe, and the liquid discharge end of the pump is connected with one end of the hollow mold through a liquid supply pipe. The hollow mold is simple in structure and convenient to use, heat on the hollow mold can be taken away by flowing cooling media no matter in the process of manufacturing a multi-layer structure composed of the composite adhesive layer and the aramid fiber layer or in the process of curing the multi-layer structure, and therefore the temperature of the hollow mold and the temperature of materials on the hollow mold are kept stable.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetometers, in particular to a device for preparing a shell of a deep-sea magnetometer. Background Art

[0002] Marine magnetometer is a magnetometer that measures the strength of the earth's magnetic field. It is a high-precision magnetic anomaly detector that is suitable for high-precision magnetic measurements in aviation and marine geophysical exploration, and can also be used for aviation magnetic anomaly detection. Marine magnetometers are characterized by digitization, modularization, miniaturization, and system integration. High-sensitivity magnetic detectors made with optical pumping technology have significant advantages such as no zero drift, no need for strict orientation, low requirements for surrounding magnetic field gradients, and continuous measurement. They are currently widely used in aviation and marine geophysical exploration.

[0003] The marine magnetometer includes a housing and a modem disposed in the housing. When in use, the housing needs to be dropped into the ocean. The housing of existing marine magnetometers is mostly made of resin glue. The maximum pressure-resistant depth of a 10mm thick housing is 200m, which makes the magnetometer unable to be used in the deep sea.

[0004] After long-term research, the inventors found that the multi-layer structure formed by alternating the boron-doped resin glue as the composite glue layer and the wound aramid fiber as the aramid fiber layer will have higher toughness and fracture strength after cooling and solidification, so that it can be adapted to a greater working depth. When preparing such a shell, the laying of the composite glue layer, the winding of the aramid fiber layer and the subsequent solidification need to be carried out in a stable temperature environment. In the prior art, when making an ocean magnetometer, only resin glue is laid on a cylindrical mold, and the shell is obtained after it is solidified. However, this cylindrical mold cannot provide the required temperature environment for the production of the above-mentioned multi-layer structure, resulting in the final shell failing to achieve the required performance.

[0005] Based on this, the utility model provides a device for preparing a deep-sea magnetometer shell, so as to provide a more stable temperature environment when manufacturing a multi-layer structure formed by alternating composite adhesive layers and aramid fiber layers, so that the final deep-sea magnetometer shell can achieve the designed performance. Utility Model Content

[0006] In view of the problem in the prior art that the mold for making the deep-sea magnetometer shell cannot provide a stable temperature environment, the purpose of the utility model is to provide a device for preparing the deep-sea magnetometer shell, so as to at least partially solve the above problem.

[0007] To achieve the above purpose, the technical solution of the utility model is:

[0008] A device for preparing a deep-sea magnetometer housing comprises a cover shell, wherein the cover shell comprises a shell and a shell cover which are detachably connected to each other, the shell shell is used to contain a cooling medium, a bracket is fixedly installed in the shell shell, and a hollow mold is fixedly installed on the bracket; a pump is also fixedly installed on the cover shell, a liquid inlet end of the pump is connected to a liquid inlet pipe, and a liquid discharge end of the pump is connected to one end of the hollow mold through a liquid supply pipe.

[0009] In a preferred embodiment, the cover is a magnetic shielding cover, and the cover is made of Permalloy material.

[0010] In a preferred embodiment, a heat-insulating layer made of heat-insulating material is provided on the outer side wall of the cover shell.

[0011] In a preferred embodiment, the hollow mold is in a tubular shape and is made of a material with high thermal conductivity.

[0012] In a preferred embodiment, the cooling medium is an ice-water mixture, and a filter screen is installed at the suction end of the liquid inlet pipe.

[0013] In a preferred embodiment, the pump includes a pump head and a driver, the pump head is fixedly mounted on one side of the inner wall of the shell, the driver is fixedly mounted on one side of the outer wall of the shell, and the input end of the pump head is connected to the driver shaft of the driver after passing through the shell.

[0014] In a preferred embodiment, a waterproof member is provided at the other end of the hollow mold, and the waterproof member is used to prevent the cooling medium from flowing back along the outer wall of the hollow mold.

[0015] In a preferred embodiment, the waterproof member is a conical cover detachably connected to the other end of the hollow mold, or the waterproof member is an elastic sleeve sleeved on the other end of the hollow mold.

[0016] By adopting the above technical scheme, the beneficial effect of the utility model is that: since the mold is configured as a hollow structure and a pump and a cover shell for containing a cooling medium are provided, whether it is a process of making a multi-layer structure consisting of a composite adhesive layer and an aramid fiber layer, or a process of curing the multi-layer structure, the heat on the hollow mold can be taken away by the flowing cooling medium, thereby maintaining the temperature of the hollow mold and the material thereon stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the hollow mold of the utility model when in use.

[0019] In the figure: 1-cover, 2-bracket, 3-positioning sleeve, 4-hollow mold, 5-positioning pin, 6-pump, 7-liquid inlet pipe, 8-liquid supply pipe, 9-filter screen, 10-drain valve, 11-shell, 12-shell cover, 13-insulation layer, 14-waterproof part. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", etc. are based on the description of the structure of the present invention as shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] The "first" and "second" in this technical solution are only used to distinguish the names of the same or similar structures, or corresponding structures with similar functions, and are not an arrangement of the importance of these structures, nor do they have a ranking, comparison of size, or other meanings.

[0023] In addition, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two structures. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood based on the overall idea of ​​the utility model and the specific context of the scheme.

[0024] Embodiment 1

[0025] like Figure 1 As shown, an embodiment of the utility model provides a device for preparing a deep-sea magnetometer housing, including a cover 1, a hollow mold 4 and a pump 6.

[0026] Wherein, the cover shell 1 is configured as a magnetic shielding cover shell, and the cover shell 1 is made of Permalloy material, so that the influence of the external magnetic field can be reduced when preparing the shell of the deep-sea magnetometer. The cover shell 1 configured in this embodiment includes a shell 11 and a shell cover 12 that are detachably connected to each other. The shell 1 can be configured as a rectangular or cylindrical shell structure with an open top surface. When the shell 11 is a rectangular shell, the shell cover 12 is detachably connected to the top surface of the shell 11 by bolts; when the shell 11 is a cylindrical shell, the shell cover 12 is detachably connected to the top surface of the shell 11 by bolts or threads. In addition, an insulation layer 13 made of insulation material is provided on the outer wall of the cover shell 1 (including the outer wall of the shell 11 and the shell cover 12).

[0027] The bracket 2 is in an I-shape and is screwed or welded to the inner bottom wall of the housing 1. Positioning sleeves 3 made of plastic or metal are welded and fixed to the two ends of the top surface of the bracket 2. The hollow mold 4 is in a tubular structure and is made of a material with a high thermal conductivity coefficient, such as a copper tube or an aluminum tube. The outer diameter of the hollow mold 4 is matched with the inner diameter of the positioning sleeve 3, and the hollow mold 4 is inserted into the positioning sleeve 3. The positioning sleeve 3 is also provided with a positioning through hole, and the hollow mold 4 is correspondingly provided with a positioning pin hole. When the positioning pin hole is opposite to the positioning through hole, the hollow mold 4 can be fixed to the positioning sleeve 3 by the positioning pin 5. The hollow mold 4 is arranged horizontally when in use.

[0028] Among them, a pump 6 is also fixedly installed on the cover 1, and the liquid inlet end of the pump 6 is connected to the liquid inlet pipe 7. The liquid discharge end of the pump 6 is connected to one end of the hollow mold 4 through a liquid supply pipe 8, for example, through a detachable connection of a clamp or a pipe joint.

[0029] In this embodiment, the cooling medium contained in the housing 11 is an ice-water mixture. Accordingly, a filter screen 9 is installed at the suction end of the liquid inlet pipe 7 to prevent ice cubes from entering.

[0030] The pump 6 specifically includes a pump head and a driver for driving the pump head, wherein the driver is fixedly mounted on one side of the outer wall of the housing 11, and the pump head extends into the interior of the housing 11 after passing through the housing 11. If necessary (for example, when the pump head is heavy), the pump head can be fixed on the inner wall of the housing 11, and then the input end of the driver is connected to the pump head after passing through the housing 11. Such an arrangement can prevent the heat emitted by the driver during operation from affecting the cooling medium.

[0031] Of course, in other preferred embodiments, the pump 6 can also be arranged independently of the cover shell 1, and two pipe holes are opened on the outer shell 11 to facilitate the passage of the liquid inlet pipe 7 and the liquid supply pipe 8. The side walls of the pipelines located outside the cover shell 1 are usually also covered with insulation material.

[0032] It is easy to understand that when the pump 6 is configured as a peristaltic pump, the liquid inlet pipe 7 and the liquid supply pipe 8 are actually the same pipeline, one end of which is connected to the filter screen cover 9, and the other end is detachably connected to the hollow mold 4 after passing through the pump head 6.

[0033] The use process of the device for preparing the deep-sea magnetometer housing provided by the utility model is as follows:

[0034] When in use, first install and fix the hollow mold 4 on the bracket 2, then connect the liquid inlet pipe 7 and the liquid supply pipe 8 as required, then pour the ice-water mixture into the shell 11, start the pump 6, and the ice water enters the hollow mold 4 along the path of the liquid inlet pipe 7, the pump 6, and the liquid supply pipe 8, and then flows back from the hollow mold 4 to the shell 11. Figure 2 As the ice water flows, the hollow mold 4 is cooled, and the heat on the hollow mold 4 can be taken away by the flowing ice water, whether in the process of making the multilayer structure composed of the composite adhesive layer and the aramid fiber layer or in the process of curing the multilayer structure, so as to maintain the temperature of the hollow mold 4 and the material thereon stable.

[0035] It is easy to understand that during the curing stage, the staff can disassemble the shell cover 12 and replenish the ice cubes, and then install the shell cover 12 after the replenishment is completed. In this way, the overall temperature of the ice-water mixture in the cover shell 1 can be maintained from rising due to the melting of the ice cubes. In addition, a drain valve 10 is usually installed at the lower position of the shell 11 to release some of the ice water before replenishing the ice cubes, thereby preventing the liquid level from submerging the hollow mold 4.

[0036] Embodiment 2

[0037] On the basis of the first embodiment, the other end of the hollow mold 4 (i.e., the end where liquid is discharged) is further provided with a waterproof component 14, which is used to prevent the cooling medium from flowing back along the outer wall of the hollow mold 4, thereby avoiding the cooling medium from affecting the production of the deep-sea magnetometer housing.

[0038] In this embodiment, the waterproof member 14 is configured as a conical cover detachably connected (e.g., threadedly connected) at the other end of the hollow mold 4, and the small end of the conical cover is connected to the hollow mold 4. In other preferred embodiments, the waterproof member 14 can also be configured as an elastic sleeve sleeved at the other end of the hollow mold 4, and the elastic sleeve is made of an elastic waterproof material, such as rubber or silicone, so as to prevent the cooling medium from flowing back along the outer wall of the hollow mold 4.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A device for preparing a deep-sea magnetometer housing, characterized in that: It comprises a cover shell, which comprises a shell and a shell cover which are detachably connected to each other, the shell is used to contain a cooling medium, a bracket is fixedly installed in the shell, and a hollow mold is fixedly installed on the bracket; a pump is also fixedly installed on the cover shell, the liquid inlet end of the pump is connected to a liquid inlet pipe, and the liquid discharge end of the pump is connected to one end of the hollow mold through a liquid supply pipe.

2. The device for preparing a deep-sea magnetometer housing according to claim 1, characterized in that: The cover shell is a magnetic shielding cover shell, and the cover shell is made of Permalloy material.

3. The device for preparing a deep-sea magnetometer housing according to claim 1, characterized in that: A heat-insulating layer made of heat-insulating material is arranged on the outer side wall of the cover shell.

4. The device for preparing a deep-sea magnetometer housing according to claim 1, characterized in that: The hollow mold is in a tubular shape and is made of a material with high thermal conductivity.

5. The device for preparing a deep-sea magnetometer housing according to claim 1, characterized in that: The cooling medium is an ice-water mixture, and a filter screen is installed at the suction end of the liquid inlet pipe.

6. The device for preparing a deep-sea magnetometer housing according to claim 1, characterized in that: The pump comprises a pump head and a driver, wherein the pump head is fixedly mounted on one side of the inner wall of the shell, and the driver is fixedly mounted on one side of the outer wall of the shell, and the input end of the pump head is connected to the driver shaft of the driver after passing through the shell.

7. The device for preparing a deep-sea magnetometer housing according to claim 1, characterized in that: A waterproof member is disposed at the other end of the hollow mold, and the waterproof member is used to prevent the cooling medium from flowing back along the outer wall of the hollow mold.

8. The device for preparing a deep-sea magnetometer housing according to claim 7, characterized in that: The waterproof part is a conical cover detachably connected to the other end of the hollow mold, or the waterproof part is an elastic sleeve sleeved on the other end of the hollow mold.

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