Helium valve complete machine installation test rack

Abstract

The invention belongs to the technical field of valve tests, and particularly relates to a helium valve complete machine installation test rack. The helium valve complete machine installation test rack comprises two bottom plates, each bottom plate is provided with a main plate, the two main plates are arranged in parallel, the opposite surfaces of the main plates are provided with test pump plates, and the test pump plates are fixedly connected with the main plates. The connecting structure has the advantages that the straight grooves are milled in the bottom plate and the main plate, positioning is accurate, reinforcing ribs are convenient to install, meanwhile, a welding mode is adopted for fixing, and connection is firm; the top end of the main board is designed to be a U-shaped groove, interference between a quick-plug connector and the main board during testing is avoided, through hole structures of two specifications are arranged around the U-shaped groove, the test tool can be suitable for installation testing of valves with different calibers, certain diversity is achieved, and meanwhile through cooperation of a full-thread stud and a hexagon nut, connection is reliable, and positioning is accurate; in addition, the whole device is of an eccentric structure, the risk that the valve inclines laterally in the installation test process can be prevented, and the supporting structure is extremely stable.

Description

Technical Field

[0001] The present invention belongs to the technical field of valve testing, and particularly relates to a helium valve complete machine installation test stand. Background Art

[0002] At present, due to the high technical content, large manufacturing difficulty, high precision level requirements, etc. of helium valves, in the valve industry, it is a device with relatively large difficulty in domestic production recognized in the industry. In order to ensure the reliable performance of helium valves, it is necessary to conduct technical achievement appraisal on the valves to determine whether they have independent intellectual property rights and whether they can reach the international advanced level, so as to fill the domestic gap and solve the problem of the nuclear-grade helium isolation valve, a key equipment for high-temperature gas-cooled reactors. The commonly used installation test stands have a single function. For valves of different sizes, brackets of different sizes need to be replaced, with poor applicability, low efficiency and utilization rate, which is not conducive to reducing production costs. Therefore, how to better meet the installation test requirements of helium valves and improve the utilization rate and test efficiency of the installation test stand is a technical problem that urgently needs to be solved at present. Summary of the Invention

[0003] The content of the present invention is to provide a helium valve complete machine installation test stand according to the installation test requirements of helium valves.

[0004] The present invention is implemented as follows: A helium valve complete machine installation test stand, which includes a bottom plate. There are two bottom plates in total. On each bottom plate, a main board is provided. The two main boards are arranged in parallel. On the opposite surfaces of the main boards, a test pump board is provided, and the test pump board is fixedly connected to the main board.

[0005] As described above, in a helium valve complete machine installation test stand, reinforcing ribs are provided on the bottom plate.

[0006] As described above, in a helium valve complete machine installation test stand, the test pump board is fixedly connected to the main board through hexagon threads and full-thread studs.

[0007] As described above, in a helium valve complete machine installation test stand, the bottom plate is welded to the reinforcing ribs.

[0008] As described above, in a helium valve complete machine installation test stand, a U-shaped groove is provided at the top of the main board to solve the interference problem between the quick connector and the main board.

[0009] As described above, in a helium valve complete machine installation test stand, the main board is eccentrically designed, and a through-hole structure is provided around the U-shaped groove.

[0010] As described above, in a helium valve complete machine installation test stand, four weight-reducing grooves are provided at the bottom of the main board to reduce the overall weight of the installation test stand.

[0011] A helium valve complete machine installation test stand as described above, wherein the test pump plate has a uniformly distributed through-hole structure for inserting full-thread studs, and four of the through-holes correspond to the through-hole structures around the U-shaped groove on the main board.

[0012] The remarkable effects of the present invention are as follows: both the bottom board and the main board are milled with straight grooves, with precise positioning, facilitating the installation of the reinforcing ribs. At the same time, they are fixed by welding, with firm connection; the top end of the main board adopts a U-shaped groove design to avoid interference between the quick-connect fitting and the main board during the test. The two types of through-hole structures around the U-shaped groove can be used for the installation tests of valves with different calibers, having a certain degree of diversity. At the same time, through the cooperation of the full-thread studs and hex nuts, the connection is reliable and the positioning is accurate; in addition, the overall device is an eccentric structure, which can prevent the risk of the valve tilting during the installation test, and the support structure is extremely stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the helium valve complete machine installation test stand provided by the present invention;

[0014] Figure 2 is the left view of the helium valve complete machine installation test stand provided by the present invention;

[0015] Figure 3 is the top view of the helium valve complete machine installation test stand provided by the present invention;

[0016] Figure 4 is the second-angle isometric three-dimensional view of the helium valve complete machine installation test stand provided by the present invention when installing a large-size test pump plate;

[0017] Figure 5 is the second-angle isometric three-dimensional view of the helium valve complete machine installation test stand provided by the present invention when installing a small-size test pump plate;

[0018] Figure 6 is the test diagram of the helium valve complete machine installation test stand provided by the present invention when conducting a large-caliber valve test;

[0019] Figure 7 is the test diagram of the helium valve complete machine installation test stand provided by the present invention when conducting a small-caliber valve test;

[0020] Wherein 1, bottom board; 2, reinforcing rib; 3, main board; 4, hex nut; 5, full-thread stud; 6, test pump plate; 7, high-pressure reciprocating pump; 8, pressure test stand; 9, quick-connect fitting; 10, large-caliber valve; 11, glass rotor flowmeter; 12, small-caliber valve. DETAILED DESCRIPTION OF THE INVENTION

[0021] A helium valve complete machine installation test stand, comprising a bottom plate, reinforcing ribs, a main board, hex nuts, full-thread studs, and a test pump plate. Among them, the connection problems between the reinforcing ribs and the main board and the bottom plate are solved by welding; the connection problems between the valve body flange, the main board, and the test pump plate are solved by the cooperation of hex nuts and full-thread studs; the main board adopts a U-shaped groove design to solve the interference problem between the quick-connect joint and the main board; the bottom plate is eccentrically designed and is combined with a reinforcing rib structure to jointly solve the problem of valve tipping caused by the valve gravity not being on the vertical center line of the valve body flange.

[0022] Two straight grooves are milled on the bottom plate for inserting the reinforcing ribs to facilitate installation.

[0023] Two straight grooves are also milled on the main board for inserting the reinforcing ribs. The top is designed with a U-shaped groove to avoid interference between the quick-connect joint and the main board. Two different specifications of through holes are designed around the U-shaped groove, which cooperate with full-thread studs and hex nuts of different specifications. In addition, four weight-reducing grooves are opened near the bottom of the main board to reduce the overall weight of the installation test stand.

[0024] The reinforcing ribs are inserted into the reserved straight grooves of the bottom plate and the main board and fixed to the main board and the bottom plate by welding.

[0025] The outer circumferential surface of the test pump plate is a uniformly distributed through-hole structure for inserting full-thread studs, and four of the through holes correspond to the through-hole structure around the U-shaped groove on the main board.

[0026] A specific example is given below.

[0027] A helium valve complete machine installation test stand provided by the present invention comprises a bottom plate 1, reinforcing ribs 2, a main board 3, hex nuts 4, full-thread studs 5, and a test pump plate 6. Among them, the reinforcing ribs 2 are fixedly connected to the bottom plate 1 and the main board 3 by welding; the test pump plate 6 is connected to the valve and the main board 3 by full-thread studs 5 and locked by hex nuts 4 at both ends; the sealing method between the test pump plate 6 and the valve is sealed by an O-ring.

[0028] The specific working process of the present invention is as follows:

[0029] 1. First, align the straight groove of the main board 3 with the straight groove of the bottom plate 1, and fix the main board 3 and the bottom plate 1 by welding.

[0030] 2. Then insert the reinforcing ribs 2 into the straight grooves of the bottom plate 1 and the main board 3 and fix them by segmental welding. The installation methods of the left support and the right support are the same.

[0031] 3. After completing the assembly of the above components, hoist the valve to the vertical state and appropriate height, and connect the main board 3 and the test pump board 6 to the flanges at both ends of the valve through the full-thread stud 5, and tighten the hex nuts 4 evenly distributed at both ends. Attention should be paid to the direction of the support frame during installation to ensure that the center of gravity of the valve is located at the center of the overall structure.

[0032] 5. During the test, insert the quick-connect fitting into the test pipeline, increase the pressure of the medium through the high-pressure reciprocating pump, and visually observe the reading of the pressure gauge on the pressure test rack and the leakage amount displayed by the glass rotor flowmeter, so as to judge whether the valve seal test is qualified.

[0033] The above specific implementation manners are used to explain and illustrate the present invention, rather than limit the present invention. Any modification and change made to the present invention within the spirit and scope of the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A helium valve complete machine installation test stand, characterized in that: It includes a bottom plate (1), and there are two bottom plates (1) in total. A main board (3) is arranged on each bottom plate (1). The two main boards (3) are arranged in parallel. A test pump plate (6) is arranged on the opposite surfaces of the main board (3). The test pump plate (6) is fixedly connected to the main board (3).

2. The helium valve complete machine installation test stand according to claim 1, characterized in that: Reinforcing ribs (2) are provided on the bottom plate (1).

3. The helium valve complete machine installation test stand according to claim 2, characterized in that: The test pump plate (6) is fixedly connected to the main board (3) through a hexagon thread (4) and a full-thread stud (5).

4. The helium valve complete machine installation test stand according to claim 3, characterized in that: The bottom plate (1) is welded to the reinforcing rib (2).

5. The helium valve complete machine installation test stand according to claim 4, characterized in that: A U-shaped groove is provided at the top of the main board (3) to solve the interference problem between the quick-connect fitting and the main board.

6. The helium valve complete machine installation test stand according to claim 5, characterized in that: The main board (3) is eccentrically designed, and a through-hole structure is arranged around the U-shaped groove.

7. The helium valve complete machine installation test stand according to claim 6, characterized in that: Four weight-reducing grooves are opened at the bottom of the main board (3) to reduce the overall weight of the installation test stand.

8. The helium valve complete machine installation test stand according to claim 7, characterized in that: The test pump plate (6) is a uniformly distributed through-hole structure for inserting the full-thread stud (5), and four through-holes thereof correspond to the through-hole structure around the U-shaped groove on the main board (3).

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