Tightness test device for installation of ship hull plate outfitting piece

Abstract

The utility model relates to the related technical field of outfitting piece installation and detection, in particular to a tightness test device for installation of a ship hull plate outfitting piece, which is used for covering the outfitting piece and comprises a flow guide net which covers the ship hull and is used for the installation position of the outfitting piece. The flow guide net is covered with the vacuum film, the vacuum film adheres to the ship body through mucilage glue, and a closed space is formed between the vacuum film and the ship body; and the air inlet end of the negative pressure unit is communicated with the closed space. The flow guide net and the vacuum film are made of flexible materials and can be completely attached to the ship bodies with different radians or different shapes, different testing devices do not need to be manufactured for the ship bodies with different radians, the manufacturing cost is low, the occupied size is small, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of outfitting part installation detection, in particular to a tightness test device for the installation of outfitting parts on the hull outer plate. Background Technique

[0002] Some outfitting parts of carbon fiber ships will penetrate the hull outer plate, such as discharge copper plates, overboard valves, seabed sand boxes, depth sounders, etc. According to the requirements of the ship inspection society's specifications, such outfitting parts need to be subjected to a tightness test under corresponding pressures according to the draft requirements to check the installation seal, prevent the cabin from flooding, and ensure the safe operation of the ship in the future.

[0003] Currently, the device mainly used for tightness test is a device made of a rubber cover with a fixed size and shape. A corresponding pressure vacuum is pumped into it, and water is sprayed on the reverse side. If the water does not penetrate the hull outer plate, it is considered that the inspection is passed.

[0004] However, due to the requirements of ship design, the installation positions of some outfitting parts are not on a plane and need to be installed on the curved lines of the hull. This will result in the need to make the device match the corresponding hull lines to ensure tightness. Secondly, the sizes of outfitting parts are different, so multiple rubber vacuum covers of different sizes need to be made. Because the volume and weight of the over-large vacuum cover are relatively large, the test difficulty is increased. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tightness test device for the installation of outfitting parts on the hull outer plate to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tightness test device for the installation of outfitting parts on the hull outer plate, comprising:

[0008] A diversion net covering the installation position of the outfitting part on the hull;

[0009] A vacuum film covering the diversion net, the vacuum film is adhered to the hull by adhesive, and a closed space is formed between the vacuum film and the hull;

[0010] A negative pressure unit, the intake end of the negative pressure unit communicates with the closed space.

[0011] The tightness test device for the installation of outfitting parts on the hull outer plate as described above: the diversion net is adhesively fixed to the outfitting part by spraying glue.

[0012] The tightness test device for the installation of outfitting parts on the hull outer plate as described above: the negative pressure unit includes:

[0013] A diversion pipe placed in the closed space;

[0014] A vacuum tube connected to a negative pressure machine, and one end of the vacuum tube away from the negative pressure machine penetrates through the vacuum membrane and communicates with the diversion tube.

[0015] The airtightness test device for installing the outboard hull fitting as described above: At the position where the vacuum tube penetrates through the vacuum membrane, it is hermetically attached to the outer wall of the vacuum tube through sealant.

[0016] The airtightness test device for installing the outboard hull fitting as described above: Both ends of the diversion tube are in a conducting state to form two first air holes.

[0017] The airtightness test device for installing the outboard hull fitting as described above: Both ends of the diversion tube are in a blocked state, and a plurality of second air holes are formed on the side of the diversion tube facing the diversion net.

[0018] Compared with the prior art, the beneficial effects of the present utility model are: By setting the diversion net, a mesh gap can be formed between the vacuum membrane and the hull, so that a complete space is maintained in the closed space, and the diversion net has a certain deformation space, so that there is a certain restoring force in the closed space, which can, to a certain extent, eliminate the problem that the direct contact between the vacuum membrane and the hull leads to a reduction in the accuracy of the hull seal detection;

[0019] Both the diversion net and the vacuum membrane are made of flexible materials, which can completely fit the hulls with different arcs or different shapes. There is no need to make different test devices for hulls with different arcs, the manufacturing cost is low, the occupied volume is small, and the practicability is strong. Description of the Drawings

[0020] Figure 1 It is an exploded view of the structure of the airtightness test device for installing the outboard hull fitting.

[0021] Figure 2 It is a state diagram during the detection process of the airtightness test device for installing the outboard hull fitting.

[0022] Figure 3 It is a schematic structural diagram of the diversion tube in an embodiment of the airtightness test device for installing the outboard hull fitting.

[0023] Figure 4 It is a schematic structural diagram of the diversion tube in another embodiment of the airtightness test device for installing the outboard hull fitting.

[0024] In the figure: 1 - hull, 2 - vacuum membrane, 3 - vacuum tube, 4 - pressure gauge, 5 - adhesive, 6 - diversion net, 7 - diversion tube, 701 - first air hole, 702 - second air hole. Detailed Embodiment

[0025] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. Identical reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0026] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0027] In addition, for a better description of the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can be implemented without some of these specific details. In some instances, methods, means, and elements well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0028] The present utility model aims to provide a test device for performing a sealing test on the installation positions of outfitting parts on a hull 1. The specific implementation is as follows:

[0029] Please refer to Figure 1 - Figure 2 , in an embodiment of the present utility model, a tightness test device for the installation of outfitting parts on the outer plate of a ship is used to cover the hull 1 and includes a diversion net 6 covering the installation position of the outfitting parts on the hull 1; a vacuum film 2 covering the diversion net 6, and the vacuum film 2 is adhered to the hull 1 through an adhesive 5, and a closed space is formed between the vacuum film 2 and the hull 1; a negative pressure unit is further included, and the air inlet end of the negative pressure unit communicates with the closed space.

[0030] Among them, it should be noted that by providing the diversion net 6, a mesh gap can be formed between the vacuum film 2 and the hull 1, so that a complete space is maintained in the closed space, and the diversion net 6 has a certain deformation space, so that there is a certain restoring force in the closed space, which can, to a certain extent, eliminate the problem that the direct contact between the vacuum film 2 and the hull 1 reduces the accuracy of the hull 1 sealing test.

[0031] For example, assume that the vacuum film 2 directly contacts the hull 1 to form a closed space. When a negative pressure is generated in this closed space under the action of the negative pressure unit, if there is a problem with the poor sealing of the hull 1, the vacuum film 2 just blocks the air leakage point (under the action of the negative pressure), resulting in inaccurate detection.

[0032] In this embodiment, both the diversion net 6 and the vacuum film 2 are made of flexible materials, which can completely fit the hull 1 with different arcs or different shapes. There is no need to make different test devices for hulls 1 with different arcs, the manufacturing cost is low, the occupied volume is small, and the practicability is strong.

[0033] Specifically, the flow guiding net 6 is adhesively fixed to the hull 1 by spraying glue. The spraying range of the glue can be determined according to actual requirements, or the flow guiding net 6 can be fixed by multi-point glue spraying. At the same time, it is necessary to ensure that the glue spraying will not affect the sealing detection of the hull 1.

[0034] Further, please refer to Figure 1 and Figure 2 , the negative pressure unit includes:

[0035] A flow guiding pipe 7 placed in the closed space;

[0036] A vacuum pipe 3 connected to a negative pressure machine, and one end of the vacuum pipe 3 away from the negative pressure machine penetrates through the vacuum membrane 2 and communicates with the flow guiding pipe 7.

[0037] Wherein, a pressure gauge 4 is installed on the vacuum pipe 3, and the setting of the pressure gauge 4 can directly show the negative pressure value in the closed space.

[0038] During use, after the flow guiding net 6 is adhesively bonded, the flow guiding pipe 7 is placed on the flow guiding net 6, and then the vacuum membrane 2 is adhesively bonded through the adhesive 5. The flow guiding pipe 7 is placed at the position between the vacuum membrane 2 and the flow guiding net 6.

[0039] Negative pressure is generated by the provided negative pressure machine, and the gas in the closed space is pumped out through the vacuum pipe 3, so that the closed space is in a negative pressure state.

[0040] In order to eliminate the air leakage phenomenon, the position on the vacuum membrane 2 through which the vacuum pipe 3 penetrates is hermetically fitted with the outer wall of the vacuum pipe 3 through a sealant, that is, the seal at the connection between the vacuum pipe 3 and the vacuum membrane 2 is realized.

[0041] Exemplarily, for a specific implementation manner, please refer to Figure 3 , both ends of the flow guiding pipe 7 are in a conducting state to form two first air holes 701. When negative pressure is generated by the vacuum pipe 3 under the action of the negative pressure machine, the gas in the closed space can enter the flow guiding pipe 7 through the first air holes 701, and then flow out through the vacuum 3 and the negative pressure machine.

[0042] Exemplarily, for another specific implementation manner, please refer to Figure 4 , both ends of the flow guiding pipe 7 are in a blocked state, and a plurality of second air holes 702 are formed on the side of the flow guiding pipe 7 facing the flow guiding net 6. The function of the second air holes 702 is the same as that of the first air holes 701 described above, but the setting positions are different, and can be specifically selected according to actual requirements.

[0043] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tightness test device for installing hull outer plating outfitting, characterized in that: include: A guide net (6) covering the hull (1) at the installation position of the outfitting parts; A vacuum film (2) covering the guide net (6), wherein the vacuum film (2) is adhered to the hull (1) by means of adhesive (5), and a closed space is formed between the vacuum film (2) and the hull (1); A negative pressure unit, wherein an air inlet end of the negative pressure unit is connected to the closed space.

2. A tightness test device for installing hull outer plating fittings according to claim 1, characterized in that: The guide net (6) is bonded and fixed to the hull (1) by spraying glue.

3. The tightness test device for installing hull outer plating fittings according to claim 1 is characterized in that: The negative pressure unit comprises: A flow guide pipe (7) placed in the enclosed space; A vacuum tube (3) is connected to a negative pressure machine, and one end of the vacuum tube (3) away from the negative pressure machine passes through the vacuum membrane (2) and is connected to the guide tube (7).

4. A tightness test device for installing hull outer plating fittings according to claim 3, characterized in that: The position on the vacuum film (2) through which the vacuum tube (3) passes is sealed to the outer wall of the vacuum tube (3) by means of a sealant.

5. The tightness test device for installing hull outer plating fittings according to claim 3 is characterized in that: The two ends of the flow guide tube (7) are in a conducting shape to form two first air holes (701).

6. A tightness test device for installing hull outer plating fittings according to claim 3, characterized in that: Both ends of the flow guide tube (7) are in a blocked shape, and a plurality of second air holes (702) are formed on one side of the flow guide tube (7) facing the flow guide net (6).

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