Special equipment racking nitrogen pressure nitrogen charging and fault judging device

Abstract

A special equipment racking nitrogen pressure nitrogen charging and fault judging device comprises a device main pipe, a KF16 connector and an instrument connector are installed on the left side and the right side of the same height of the device main pipe respectively, and the KF16 connector and the instrument connector are connected in the device main pipe; and the tip of the ejector pin protrudes out of the device main pipe. The KF16 connector and the instrument connector are rigidly connected in the device main pipe in a socket welding mode. The device further comprises an M22 nut and a sealing gasket, and the ejector pin is connected to the device main pipe in a threaded fastening mode through the M22 nut and the sealing gasket.

Description

Technical Field

[0001] This patent relates to the field of engineering installation technology, and specifically to a special equipment rack nitrogen pressure filling and fault judgment device. Background Art

[0002] In engineering construction, after the special equipment is assembled by the manufacturer, it must pass the vacuum sealing test and be filled with nitrogen to the specified pressure for storage. After transportation, storage and transfer, the sealing of some equipment may be damaged due to various reasons. Before the special equipment is put into place, the nitrogen pressure must be checked to detect abnormalities in time and determine the machine failure, so as to ensure the vacuum sealing requirements of the equipment.

[0003] The original dedicated equipment used a two-channel plug-in device for nitrogen filling. When conducting nitrogen pressure testing, the detection hole must be inserted into the end of the rack feed manifold, and the pressure gauge value is observed to determine whether the nitrogen pressure of the rack is within the qualified range (≥0.15MPa). This method requires two people to hold the device for a long time and maintain a certain pressure to ensure that the interface is sealed.

[0004] If the nitrogen pressure of the machine is low (between 0.10 and 0.15 MPa) and nitrogen needs to be supplemented, unplug the two-channel plug-in measuring device, connect the nitrogen filling tooling, open the nitrogen bottle valve, and observe the pressure gauge on the nitrogen bottle to supplement the nitrogen pressure on the mounting rack. When the nitrogen pressure deviation is large (≤0.10 MPa) and the leak point needs to be found, use the tooling to connect the special equipment mounting rack to the helium mass spectrometer leak detector, and use the nozzle to spray helium on the connection parts of the special equipment mounting rack, observe the situation of the helium mass spectrometer leak detector to judge the machine failure.

[0005] The existing installation technology has many shortcomings in actual operation, such as:

[0006] (1) The original device can only monitor the nitrogen pressure of the special equipment rack, and the equipment needs to be replaced when replenishing nitrogen.

[0007] (2) It requires the coordination of a variety of tools and equipment to complete the single-machine process of evacuation, leak detection, nitrogen filling, measurement, and defect judgment. There are many operation steps, which is time-consuming and requires a lot of manpower and material resources.

[0008] (3) When there are 2 to 3 racks, it is necessary to invest in the corresponding vacuum pump and leak detector according to the location of the faulty rack, which takes longer and affects the progress node of the special equipment hanging up. Summary of the invention

[0009] The purpose of the present invention is to: in view of the shortcomings of the original methods in the prior art, a self-made fixed four-channel host-mounted nitrogen pressure detection, nitrogen filling, and fault machine confirmation integrated device is developed to realize the single-machine nitrogen filling and measurement synchronization functions of leak determination through the pressure drop method, thereby improving work efficiency.

[0010] The technical solution of the present invention is as follows: a special equipment rack nitrogen pressure charging and fault judgment device, comprising a device main pipe, a KF16 joint and an instrument joint are respectively installed on the left and right sides of the same height of the device main pipe, and the KF16 joint and the instrument joint are connected inside the device main pipe; a ejector pin is installed inside the device main pipe, and the tip of the ejector pin protrudes from the device main pipe.

[0011] The KF16 joint and the instrument joint are rigidly connected inside the main pipe of the device by socket welding.

[0012] It also includes an M22 nut and a sealing gasket, through which the ejector pin is threadedly fastened and connected to the main pipe of the device.

[0013] It also includes a top waist-shaped flange and a bayonet pin, the bayonet pin is installed on the device main pipe, and the device main pipe is fixed by using the bayonet pin.

[0014] It also includes a top waist-shaped flange, which is installed on the top of the device main pipe, and the ejector pin passes through the top waist-shaped flange.

[0015] The KF16 connector is used to connect the nitrogen pipe, while the instrument connector is used to install the pressure gauge.

[0016] When working, insert the ejector pin into the special machine manifold; observe the pressure gauge reading; if the pressure gauge value is ≥0.15MPa, it is normal;

[0017] If the pressure gauge reading is between 0.10 and 0.15 MPa, fill with nitrogen through the nitrogen pipe connected to the KF16 joint until the pressure gauge value reaches 0.15 MPa.

[0018] If the pressure gauge reading is ≤0.10MPa, a single-machine fault judgment is performed, and nitrogen is filled through the nitrogen pipe connected to the KF16 joint. When the pressure gauge value reaches 0.15MPa, nitrogen filling is stopped, and the entire device is inspected to determine the defect location.

[0019] The remarkable effects of the present invention are:

[0020] (1) For unqualified machines, only one person is required to operate, replenish nitrogen pressure to 0.02-0.2MPa, and after the diaphragm valve is placed in place, the pressure drop method can be used to determine the fault point of the single machine.

[0021] (2) With this tool, only one person is needed to handle multiple faulty machines at different locations at the same time, and the leak point can be determined after replenishing nitrogen pressure for 24 hours.

[0022] (3) The invention of this tool improves the accuracy of fault single-machine judgment, shortens the detection and judgment time, saves the investment in personnel and equipment, and maximizes the deployment of construction personnel to other work surfaces.

[0023] (4) It can quickly identify faults and replace them immediately, which greatly improves the installation progress of the machines entering the site, ensures the time node, and shortens the subsequent vacuum test time to measure the pass rate of the machine after deflation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall schematic diagram of this patent;

[0025] Figure 2 This is a schematic diagram of the patented gasket;

[0026] Figure 3 It is a three-dimensional schematic diagram of this patent;

[0027] In the figure: 1 device main pipe, 2 waist flange, 3 KF16 joint, 4 sealing gasket, 5 instrument joint 6 ejector pin, 7 M22 nut, 8 bayonet pin. DETAILED DESCRIPTION

[0028] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0029] The terms used in one or more embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present application. The singular forms of "a", "said" and "the" used in one or more embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0030] It should be understood that, although the terms first, second, etc. may be used to describe various information in one or more embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0031] A special equipment mounting nitrogen pressure filling and fault judgment device comprises a device main pipe 1, a KF16 joint 3 and an instrument joint 5 are respectively installed on the left and right sides of the same height of the device main pipe 1, and the KF16 joint 3 and the instrument joint 5 are rigidly connected by socket welding inside the device main pipe 1. The ejector pin 6 is threadedly fastened to the device main pipe 1 by an M22 nut 7 and a sealing gasket 4, and the top waist flange 2 is matched with the device main pipe 1 and fixed by a bayonet 8.

[0032] How to use

[0033] Press ejector pin 6 and insert it into the special machine manifold. Observe the pressure gauge reading. If the displayed value is ≥0.15MPa, it is normal.

[0034] If the pressure gauge reading is between 0.10 and 0.15 MPa, nitrogen needs to be added. Connect the nitrogen pipe to KF16 connector 3, fill the mounting rack with nitrogen, and observe the pressure gauge value on the device. When the pressure gauge value reaches 0.15 MPa, close the nitrogen bottle valve.

[0035] If the pressure gauge reading is ≤0.10MPa, a single-machine fault judgment is required. Connect the nitrogen pipe to the KF16 connector 3, fill the mounting frame with nitrogen, and observe the value of the pressure gauge on the device. When the pressure gauge value reaches 0.15MPa, close the nitrogen bottle valve, stop supplying nitrogen, and then inspect each diaphragm valve of the special machine one by one to determine the defect location.

[0036] The above description is only a preferred embodiment of this patent and is not intended to limit this patent. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this patent should be included in the scope of protection of this patent.

[0037] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0038] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0039] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The optional embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can understand and use the present application well.

Claims

1. A special equipment rack nitrogen pressure filling and fault judgment device, characterized by: The device comprises a main pipe (1), wherein a KF16 connector (3) and an instrument connector (5) are respectively installed on the left and right sides of the device main pipe (1) at the same height, and the KF16 connector (3) and the instrument connector (5) are connected inside the device main pipe (1); a thimble (6) is installed inside the device main pipe (1), and the tip of the thimble (6) protrudes from the device main pipe (1).

2. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 1, characterized in that: The KF16 joint (3) and the instrument joint (5) are rigidly connected inside the device main pipe (1) by means of socket welding.

3. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 1, characterized in that: It also includes an M22 nut (7) and a sealing gasket (4), and the ejector pin (6) is threadedly fastened to the device main pipe (1) through the M22 nut (7) and the sealing gasket (4).

4. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 1, characterized in that: It also includes a top waist-shaped flange (2) and a bayonet (8), wherein the bayonet (8) is installed on the device main pipe (1), and the device main pipe (1) is fixed by using the bayonet (8).

5. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 4, characterized in that: It also includes a top waist-shaped flange (2), which is installed on the top of the device main pipe (1), and the ejector pin (6) passes through the top waist-shaped flange (2).

6. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 1, characterized in that: The KF16 connector (3) is connected to the nitrogen pipe, and the instrument connector (5) is installed with the pressure gauge.

7. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 6, characterized in that: When working, insert the ejector pin (6) into the special machine manifold; observe the pressure gauge reading; if the pressure gauge value is ≥0.15MPa, it is normal; If the pressure gauge reading is between 0.10 and 0.15 MPa, nitrogen is charged through the nitrogen pipe connected to the KF16 connector (3) until the pressure gauge reading reaches 0.15 MPa.

8. A nitrogen pressure filling and fault judgment device for a special equipment rack according to claim 7, characterized in that: If the pressure gauge reading is ≤0.10MPa, a single fault judgment is made and nitrogen is filled through the nitrogen pipe connected to the KF16 joint (3). When the pressure gauge value reaches 0.15MPa, nitrogen filling is stopped and the entire device is tested to determine the defect location.

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