Turbine box testing equipment

Abstract

The utility model is applicable to the field of detection equipment, and provides a turbine box detection equipment, including an air supply head connected to the opening of the turbine box; the air supply head is provided with a support ring inside, and a accommodating space for placing an expansion body is provided between the air supply head and the inner wall of the air supply head; the accommodating space is fixedly installed on the inner wall of the air supply head; the expanded body after expansion is pressed and covered on the fitting gap between the end face of the air supply head and the end face of the opening, thereby, the utility model realizes auxiliary sealing of the fitting gap between the connecting end face of the air supply head and the end face of the opening through the expansion body, and further ensures the connection sealing of the equipment during air tightness detection.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a turbine box detection equipment. Background Art

[0002] After the turbine box is manufactured and before it is shipped to the market, the manufacturer will test the air tightness of the turbine box. Only after passing the test will it be released to the market. When testing the air tightness, the general detection method is to manually plug the openings of the turbine box with plugs, and then put it in water and pass compressed air to test the air tightness.

[0003] During the display and use of the device, after the plug is installed, its connecting end face will fit with the end face of the installation opening (the device and the plug will then be tightened by tightening bolts). This connection method is limited by the roughness of the connecting end face and the threaded connector. After the device is used for a long time, the sealing will deteriorate.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a turbine box detection device, which can achieve auxiliary sealing of the fitting gap between the connecting end face of the air supply head and the opening end face through an expansion body, thereby further ensuring the connection sealing of the equipment during air tightness detection.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a turbine box detection equipment, including an air supply head connected to the opening of the turbine box; the air supply head is provided with a supporting ring inside, and a accommodating space for placing an expansion body is provided between the air supply head and the inner wall of the air supply head; the accommodating space is fixedly installed on the inner wall of the air supply head; the expanded body after expansion is pressed and covered on the fitting gap between the end face of the air supply head and the end face of the opening.

[0007] According to the turbine box detection device of the utility model, the expansion body is an air bag, and is connected with the air supply channel in the air supply head.

[0008] According to the turbine box detection equipment of the utility model, the inner wall of the air supply head is provided with an air supply inlet and an air supply outlet, both of which are connected to the internal space of the expansion body; during the air supply process, the gas passes through the air supply inlet, the inside of the expansion body, the air supply outlet in sequence from the air supply channel, and finally enters the equipment.

[0009] According to the turbine box detection device of the utility model, a baffle is hinged at the air supply outlet; and a torsion spring is installed at the rotating connection of the baffle.

[0010] According to the utility model, the turbine box detection equipment also includes a plurality of sub-plugs; each of the sub-plugs also includes a support ring and an expansion body, and has the same structure; the plurality of sub-plugs are connected to the air supply head through a pipeline; under the action of the pipeline connection, the interior of the air supply head and the expansion body of the sub-plug are connected.

[0011] According to the turbine box detection device of the utility model, the support ring is higher than the connecting end surface of the air supply head.

[0012] The utility model provides a turbine box detection device, including an air supply head connected to the opening of the turbine box; the air supply head is connected to the gas supply unit through an air supply pipeline. During the air tightness detection process, the gas supply unit supplies air to the internal space of the turbine box through the connected air supply head, and forms a certain air pressure inside the turbine box. Then, it is left to stand still between one end, and the pressure loss value inside the turbine box is detected to obtain its sealing performance. There is a support ring inside the air supply head, which plays a supporting role. There is a accommodating space for placing an expansion body between the air supply head and the inner wall of the air supply head; the accommodating space is fixedly installed on the inner wall of the air supply head. After the expansion body expands, under the limiting effect of the support ring, the expansion body will be pressed toward the inner wall of the air supply head, and the expanded expansion body will be pressed and covered on the fitting gap between the end face of the air supply head and the end face of the opening to achieve a sealing effect. Through the above structure, auxiliary optimization is provided for the installation sealing performance of the air supply head, so as to avoid leakage in the fitting gap between the connection (air supply head and opening) after long-term use of the parts, resulting in inaccurate measurement. The utility model realizes auxiliary sealing of the fitting gap between the connecting end face of the air supply head and the opening end face through the expansion body, so as to further ensure the connection sealing of the equipment during the air tightness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the turbine box;

[0014] Figure 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the air supply head;

[0016] In the figure, 00-accommodating space, 01-opening, 02-turbine box, 1-air supply head, 11-support ring, 2-expansion body, 21-air supply inlet, 22-air supply outlet, 3-baffle, 4-sub-plug, 5-pipeline, 7-connecting end face. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] See also Figure 1 and Figure 2 The utility model provides a turbine box detection device, which includes a gas supply head 1 connected to the opening 01 of the turbine box 02; the gas supply head 1 is connected to the gas supply unit through the gas supply pipeline. During the air tightness detection process, the gas supply unit supplies air to the internal space of the turbine box 02 through the connected gas supply head 1, and forms a certain air pressure inside the turbine box 02. Then, it is left to stand between one end, and the pressure loss value inside the turbine box 02 is detected to obtain its sealing.

[0019] See also Figure 2 and Figure 3 There is a support ring 11 inside the air supply head 1, and there is a accommodating space 00 for placing the expansion body 2 between the support ring 11 and the inner wall of the air supply head 1; the accommodating space 00 is fixedly installed on the inner wall of the air supply head 1; the support ring 11 is higher than the connecting end face 7 of the air supply head 1, and the protruding part is about 1.2 cm.

[0020] After the expansion body 2 expands, under the limiting effect of the support ring 11, the expansion body 2 will be pressed toward the inner wall of the air supply head 1, and the expanded expansion body 2 will be pressed and covered on the fitting gap between the end face of the air supply head 1 and the end face of the opening 01, thereby achieving a sealing effect. Through the above structure, auxiliary optimization is provided for the installation sealing of the air supply head 1, so as to avoid leakage in the fitting gap between the connection (air supply head 1 and opening 01) after long-term use of the parts, resulting in inaccurate measurement.

[0021] Specifically in this embodiment, the expansion body 2 is an air bag, and is connected to the air supply channel in the air supply head 1. Furthermore, the inner wall of the air supply head 1 is provided with an air supply inlet 21 and an air supply outlet 22, both of which are connected to the internal space of the expansion body 2; during the air supply process, the gas passes through the air supply inlet 21, the inside of the expansion body 2, and the air supply outlet 22 in sequence from the air supply channel, and finally enters the device. Through the above structure, on the one hand, the expansion process of the air bag is driven by the gas supply unit to achieve power source saving (no need to connect a separate driving structure); on the other hand, priority air supply is achieved for the expansion body 2 to ensure the sealing of the inflation process.

[0022] Preferably, in order to ensure the priority of air intake, air is supplied to the device to be tested after the airbag is expanded to a predetermined state. For this purpose, a baffle 3 is hinged at the air supply outlet 22; a torsion spring is installed at the rotating connection of the baffle 3. The torsion spring provides a blocking preload for the baffle 3. During the air supply process, when the pressure in the airbag is less than the resistance generated by the baffle 3, the gas is first filled into the airbag. When the pressure in the airbag is greater than the resistance generated by the baffle 3, the air pressure pushes the baffle 3 to open, and the gas is filled into the device to be tested. It should be explained that the baffle 3 can move in both directions at the air supply outlet 22.

[0023] In addition, the utility model also includes a plurality of sub-plugs 4, wherein, when the device to be tested (turbine box) has more than a single opening, the other openings are blocked by the sub-plugs 4; each of the sub-plugs 4 also includes a support ring 11 and an expansion body 2, and has the same structure; the plurality of sub-plugs 4 are connected to the air supply head 1 through a pipe 5; under the connection of the pipe 5, the air supply head 1 and the expansion body 2 of the sub-plug 4 are internally connected. In other words, under the connection of the pipe 5, the air supply head 1 and the expansion body 2 of the sub-plug 4 are linked into a whole, and after the whole is expanded to a predetermined pressure, air is further solidly supplied to the interior of the device to be tested. And through the above-mentioned working conditions (the overall expansion of multiple expansion bodies 2), uniform blocking and uniform force are achieved, which prevents a single expansion body 2 from being overly pressurized and unable to expand.

[0024] In summary, the utility model provides a turbine box detection device, including an air supply head connected to the opening of the turbine box; the air supply head is connected to the gas supply unit through an air supply pipeline. During the air tightness detection process, the gas supply unit supplies air to the internal space of the turbine box through the connected air supply head and forms a certain air pressure inside the turbine box. Then, it is left to stand still between one end, and the pressure loss value inside the turbine box is detected to obtain its sealing performance. There is a support ring inside the air supply head, which plays a supporting role. There is a accommodating space for placing an expansion body between the air supply head and the inner wall of the air supply head; the accommodating space is fixedly installed on the inner wall of the air supply head. After the expansion body expands, under the limiting effect of the support ring, the expansion body will be pressed toward the inner wall of the air supply head, and the expanded expansion body will be pressed and covered on the fitting gap between the end face of the air supply head and the end face of the opening to achieve a sealing effect. Through the above structure, auxiliary optimization is provided for the installation sealing of the air supply head, so as to avoid leakage in the fitting gap between the connection (air supply head and opening) after long-term use of the parts, resulting in inaccurate measurement. The utility model realizes auxiliary sealing of the fitting gap between the connecting end face of the air supply head and the opening end face through the expansion body, so as to further ensure the connection sealing of the equipment during the air tightness detection.

[0025] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A turbine box detection device, characterized in that: including an air supply head connected to the opening of the turbine case; The air supply head has a supporting ring inside, and there is a receiving space for placing the expansion body between the supporting ring and the inner wall of the air supply head; the receiving space is fixedly installed on the inner wall of the air supply head; The expanded body after expansion is pressed and covered on the fitting gap between the end surface of the air supply head and the end surface of the opening.

2. The turbine case detection device according to claim 1, characterized in that: The expansion body is an air bag and is communicated with the air supply channel in the air supply head.

3. The turbine case detection device according to claim 2, characterized in that: The inner wall of the air supply head is provided with an air supply inlet and an air supply outlet, both of which are connected to the internal space of the expansion body; During the gas supply process, the gas passes through the gas supply inlet, the inside of the expansion body, the gas supply outlet, and finally enters the equipment.

4. The turbine case detection device according to claim 3, characterized in that: A baffle is hinged at the air supply outlet; A torsion spring is installed at the rotation connection of the baffle.

5. The turbine case detection device according to claim 2, characterized in that: It also includes a plurality of sub-plugs; each of the sub-plugs also includes a support ring and an expansion body, and has the same structure; A plurality of sub-plugs are connected to the air supply head through pipelines; Under the action of pipeline connection, the interiors of the expansion bodies of the air supply head and the sub-plug are connected.

6. The turbine case detection device according to claim 1, characterized in that: The support ring is higher than the connecting end surface of the gas supply head.

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