Vacuumizing device

Abstract

The utility model discloses a vacuumizing device, which comprises a pore plate component, a vacuumizing component and a vacuumizing component, the pore plate component comprises a sleeve, a pore plate, a long rod and two short rods, the sleeve is arranged on the outer wall of a tank body, the pore plate is detachably arranged in the sleeve, the long rod and the two short rods are arranged on the pore plate, and the short rods are arranged on the side part of the long rod; the connecting pipe is arranged on the outer wall of the tank body and wraps the sleeve; the vacuum filter is arranged in the connecting pipe; and the air inlet end of the vacuum valve is connected with the connecting pipe. In the utility model, the pore plate assembly is welded on the tank body shell to form a protective barrier for preventing the vacuum filter from being contacted with the interlayer heat insulation paper, so that the phenomenon that the vacuum filter is blocked is effectively solved, and the occupied space in the interlayer is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic pressure vessel technology, and in particular to a vacuum pumping device. Background Technology

[0002] Traditional cryogenic pressure vessels require a high vacuum in their jacket to ensure insulation performance. As the vessel volume increases, the jacket space shrinks, making traditional vacuum pumping devices difficult to install due to their large size. Furthermore, vacuum filters in traditional devices are typically fixed inside the jacket; if they become clogged or damaged, the vessel shell must be broken to replace them, resulting in high maintenance costs and complex operation. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned technical problems by providing a vacuum pumping device.

[0004] The technical solution of this utility model: a vacuum pumping device, comprising:

[0005] An orifice plate assembly includes a sleeve, an orifice plate, a long rod, and two short rods. The sleeve is disposed on the outer wall of the tank, the orifice plate is detachably disposed inside the sleeve, and the long rod and the two short rods are disposed on the orifice plate with the short rods on the side of the long rod.

[0006] A connecting pipe is installed on the outer wall of the tank and wraps around the sleeve;

[0007] A vacuum filter is installed inside the connecting pipe;

[0008] A vacuum valve, the air inlet of which is connected to the connecting pipe.

[0009] Preferably, the aperture of the perforated plate is 2mm-2.1mm.

[0010] Preferably, one end of the long rod and the two short rods extends out of the orifice plate, and the sleeve is provided with four placement slots and a locking device. One end of the long rod and the two short rods cooperates with the placement slots, and the locking device is used to lock and fix one end of the long rod or the short rod in the placement slot.

[0011] Preferably, the sleeve is provided with a plurality of sliding grooves; the locking device includes a spring and a T-shaped pressure rod, one end of the pressure rod being able to slide in the sliding groove, and the spring being disposed in the sliding groove.

[0012] Preferably, the pressure bar is a square pressure bar.

[0013] The beneficial effects of this utility model are as follows: In this utility model, the perforated plate assembly is welded to the outer shell of the tank to form a protective barrier to prevent the vacuum filter from contacting the interlayer insulation paper, which effectively solves the problem of vacuum filter blockage, greatly reduces the space occupied in the interlayer, and the vacuum filter is on the outside of the container. During maintenance, only the weld seam needs to be partially cut to replace the vacuum filter, which greatly reduces maintenance costs and shortens the operation time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure and the connection between the tank shell and a preferred embodiment of the present invention;

[0015] Figure 2 This is a top view of the perforated plate assembly in a preferred embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional view of the sleeve in a preferred embodiment of the present invention.

[0017] Reference numerals: sleeve 10, placement groove 101, locking device 102, spring 1021, pressure rod 1022, slide groove 103, orifice plate 2, long rod 3, short rod 4, connecting pipe 5, vacuum filter 6, vacuum valve 7. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1 to 3 A vacuum pumping device, comprising:

[0020] An orifice plate assembly includes a sleeve 10, an orifice plate 2, a long rod 3, and two short rods 4. The sleeve 10 is disposed on the outer wall of the tank. The orifice plate 2 is detachably disposed inside the sleeve 10. The long rod 3 and the two short rods 4 are disposed on the orifice plate 2, and the short rods 4 are disposed on the side of the long rod 3.

[0021] Connector 5 is installed on the outer wall of the tank and wraps around the sleeve 10;

[0022] Vacuum filter 6 is installed inside the connecting pipe 5;

[0023] Vacuum valve 7, with its inlet end connected to the connecting pipe 5. In this invention, sleeve 10 is welded to the outer wall of the tank, long rod 3 and two short rods 4 are welded to orifice plate 2, connecting pipe 5 is welded to the outer wall of the tank, and vacuum filter 6 is installed inside connecting pipe 5. When the container needs to be evacuated, the vacuum equipment is connected to vacuum valve 7, and vacuum valve 7 is opened. The vacuum equipment then operates to evacuate the container. The orifice plate assembly is welded to the outer shell of the tank, forming a protective barrier to prevent vacuum filter 6 from contacting the interlayer insulation paper, effectively solving the problem of vacuum filter 6 being blocked, significantly reducing the space occupied in the interlayer, and since vacuum filter 6 is outside the container, maintenance only requires partial cutting of the weld seam to replace vacuum filter 6, greatly reducing maintenance costs and shortening operation time.

[0024] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0025] In this embodiment, the aperture of the perforated plate 10 is 2mm-2.1mm.

[0026] In this embodiment, one end of the long rod 3 and the two short rods 4 extends out of the perforated plate 2. The sleeve 10 is provided with four placement slots 101 and a locking device 102. One end of the long rod 3 and the short rod 4 cooperates with the placement slot 101. The locking device 102 is used to lock and fix one end of the long rod 3 or the short rod 4 in the placement slot 101. When it is necessary to replace the perforated plate 2, the perforated plate 2 can be removed by using the locking device 102, reducing the operation time.

[0027] In this embodiment, the sleeve 10 is provided with a plurality of sliding grooves 103; the locking device 102 includes a spring 1021 and a T-shaped pressure rod 1022. One end of the pressure rod 1022 can slide in the sliding groove 103, and the spring 1021 is disposed in the sliding groove 103. When disassembling the perforated plate 2, the pressure rod 1022 is pushed, and one end of the pressure rod 1022 slides in the sliding groove 103 and squeezes the spring 1021. The long rod 3 and short rod 4 on the perforated plate 2 can then be disengaged from the placement groove 101, and a new perforated plate 2 can be replaced.

[0028] In this embodiment, the pressure bar 1022 is a square pressure bar, which increases the contact area between the pressure bar 1022 and the long bar 3 or the short bar 4.

[0029] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum pumping device, characterized in that, include: An orifice plate assembly includes a sleeve (10), an orifice plate (2), a long rod (3), and two short rods (4). The sleeve (10) is disposed on the outer wall of the tank. The orifice plate (2) is detachably disposed inside the sleeve (10). The long rod (3) and the two short rods (4) are disposed on the orifice plate (2), and the short rods (4) are on the side of the long rod (3). The connecting pipe (5) is installed on the outer wall of the tank and wraps around the sleeve (10); A vacuum filter (6) is disposed within the connecting pipe (5); Vacuum valve (7), the air inlet end of which is connected to the connecting pipe (5).

2. The vacuum pumping device according to claim 1, characterized in that: The aperture of the perforated plate (10) is 2mm-2.1mm.

3. The vacuum pumping device according to claim 1, characterized in that: One end of the long rod (3) and the two short rods (4) extends out of the orifice plate (2). The sleeve (10) is provided with four placement slots (101) and a locking device (102). One end of the long rod (3) and the short rods (4) cooperate with the placement slots (101). The locking device (102) is used to lock and fix one end of the long rod (3) or the short rod (4) in the placement slots (101).

4. The vacuum pumping device according to claim 3, characterized in that: The sleeve (10) is provided with a plurality of sliding grooves (103); the locking device (102) includes a spring (1021) and a T-shaped pressure rod (1022), one end of the pressure rod (1022) can slide in the sliding groove (103), and the spring (1021) is disposed in the sliding groove (103).

5. A vacuum pumping device according to claim 4, characterized in that: The pressure bar (1022) is a square pressure bar.

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