Pressure stabilizing device for hydraulic test of pressure vessel

Abstract

The utility model relates to the field of hydraulic tests, in particular to a pressure stabilizing device for a hydraulic test of a pressure vessel. Comprising a base, a plurality of sets of sealing covers are arranged above the base at equal intervals, the top of each set of sealing cover communicates with a set of pressure stabilizing pipe, two sets of moving grooves are symmetrically formed in the inner wall of each set of pressure stabilizing pipe, and a set of fixing rods are installed in each set of moving grooves; each group of fixing rods is movably sleeved with a group of moving blocks, a piston is arranged in the pressure stabilizing pipe, each group of fixing rods is provided with a group of second springs, one end of each group of second springs is installed on the inner wall of the bottom of one group of moving grooves, and the other end of each group of second springs is installed on the inner wall of the bottom of the other group of moving grooves. The other end of each second spring is installed at the bottom of one moving block, and a pressure relief opening is formed in the outer wall of the pressure stabilizing pipe. According to the embodiment, the pressure stability of the whole system is ensured, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic test, especially relates to a pressure stabilizing device for pressure vessel hydraulic test. BACKGROUND

[0002] Hydraulic test is a kind of pressure test to pressure vessel by liquid medium, and its purpose is to comprehensively examine the strength and quality of the vessel, and the pressure stabilizing device for hydraulic test is a kind of equipment for keeping the pressure of hydraulic system stable.

[0003] Through the search, in the prior art, China patent publication number: CN210923320U, authorized announcement date: July 3, 2020, discloses a pressure vessel hydraulic automatic test device, including vacuum assembly, limiting assembly and storage tank, the inside fixed mounting of storage tank is equipped with water pump, the output end of water pump is fixedly arranged with water injection assembly, the side fixed mounting of water pump is equipped with vacuum pump, the output end of vacuum pump is movably provided with vacuum assembly. The above embodiment is provided with a series of structures, so that the device can be installed in the process of use.

[0004] But the device still has the following defects: the above embodiment does not have the pressure stabilizing effect, if the pressure stabilizing cannot be carried out, the pressure stability in the experimental process cannot be ensured, so that the test result is not accurate, and the unstable pressure condition increases the risk of equipment failure or explosion. UTILITY MODEL CONTENT

[0005] In view of the above problems, the utility model provides a pressure stabilizing device for pressure vessel hydraulic test, which comprises a base, a plurality of groups of sealing covers are arranged at equal intervals on the top of the base, a group of pressure stabilizing pipes is communicated with the top of each group of sealing covers, two groups of moving grooves are symmetrically arranged on the inner wall of each group of pressure stabilizing pipes, a group of fixing rods is installed in each group of moving grooves, a group of moving blocks is movably connected to each group of fixing rods, a piston is arranged in the pressure stabilizing pipe, a group of second springs is arranged on each group of fixing rods, one end of each group of second springs is installed on the bottom inner wall of one group of moving grooves, and the other end of each group of second springs is installed on the bottom of one group of moving blocks.

[0006] Further, a plurality of groups of mounting plates are installed at equal intervals on the top of the base, two groups of fixing plates are symmetrically installed on the top of each group of mounting plates, two groups of clamps are symmetrically arranged between the two groups of fixing plates, a plurality of groups of first springs are installed on the side wall away from each other of the two groups of clamps in a rectangular array, and the other end of each group of first springs is installed on the side wall of the fixing plate.

[0007] Further, the side wall of each of the fixing plates is provided with a set of limiting grooves, and a set of limiting rods are installed at the center of the side wall of the two sets of clamps away from each other, and the other end of the limiting rod penetrates the limiting groove.

[0008] Further, the top of the base is symmetrically provided with two sets of vertical plates, one of which is provided with a control panel, the top of each of the vertical plates is provided with a set of electric push rods, and the top of each of the vertical plates is provided with a set of connecting plates.

[0009] Further, the top of the base is provided with a top plate, the top of the two sets of connecting plates is installed on the bottom of the top plate, and the top of the top plate is provided with a storage box.

[0010] Further, the bottom center of the storage box is communicated with a conveying pipe, the bottom of the conveying pipe is communicated with a connecting pipe after penetrating the top plate, the conveying pipe is provided with a first water pump, and the first water pump is located below the top plate.

[0011] Further, the bottom of the connecting pipe is communicated with a plurality of sets of output pipes at equal intervals, each of the sealing covers is fixedly sleeved on one of the output pipes, and the two sets of moving blocks are symmetrically installed on one of the pistons.

[0012] Further, each of the stabilizing pipes is fixedly sleeved with a set of collecting shells, the bottom of each of the collecting shells is communicated with a set of transportation pipes, the other end of each of the transportation pipes is communicated with the storage box, each of the transportation pipes is provided with a set of second water pumps, and each of the second water pumps is installed on the outer wall of the storage box.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the pressure in the pressure container changes, the piston in the stabilizing pipe will respond, when the pressure increases, the piston moves upward, the second spring is stretched, the excess gas or liquid is discharged through the pressure relief port, the liquid falls into the collecting shell, and vice versa, when the pressure decreases, the second spring pulls the piston down, so that the dynamic adjustment of the pressure is realized, the stability of the whole system pressure is ensured, and the safety is improved.

[0015] 2. The collecting shell at the bottom of the stabilizing pipe collects the liquid after pressure regulation, the liquid in the collecting shell is transported back to the storage box through the transportation pipe, and each of the transportation pipes is provided with a second water pump to assist the backflow of the liquid, so that a closed circulation system is formed, and the resource utilization rate is improved.

[0016] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 A voltage stabilizing structure schematic diagram according to an embodiment of the present application is shown;

[0019] Figure 2 A clamp structure schematic diagram according to an embodiment of the present application is shown;

[0020] Figure 3 A voltage stabilizing structure split schematic diagram according to an embodiment of the present application is shown;

[0021] Figure 4 A voltage stabilizing tube cross-sectional view schematic diagram according to an embodiment of the present application is shown.

[0022] In the figure: 1, base; 2, mounting plate; 3, fixed plate; 4, clamp; 5, first spring; 6, limiting groove; 7, limiting rod; 8, vertical plate; 9, control panel; 10, electric push rod; 11, connecting plate; 12, top plate; 13, storage box; 14, conveying pipe; 15, connecting pipe; 16, first water pump; 17, output pipe; 18, sealing cover; 19, voltage stabilizing tube; 20, collection shell; 21, transport pipe; 22, second water pump; 23, moving groove; 24, fixed rod; 25, moving block; 26, piston; 27, second spring; 28, pressure relief port. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The utility model embodiment provides a kind of pressure vessel hydrostatic test with pressure stabilizing device, including base 1, exemplary, as shown in Figure 1 And Figure 2 As shown, the top of the base 1 is installed with several groups of mounting plates 2 at equal intervals, the top of each group of mounting plates 2 is symmetrically installed with two groups of fixed plates 3, two groups of fixed plates 3 are symmetrically provided with two groups of clamps 4, and several groups of first springs 5 are installed on the side wall of the two groups of clamps 4 far away in rectangular array, the other end of each group of first springs 5 is installed on the side wall of fixed plate 3, a group of limiting grooves 6 is formed on the side wall of each group of fixed plates 3, a group of limiting rods 7 is installed at the center of the side wall far away from the two groups of clamps 4, and the other end of the limiting rod 7 penetrates the limiting groove 6.

[0025] The top of the base 1 is symmetrically installed with two groups of vertical plates 8, one of the vertical plates 8 is installed with a control panel 9, a group of electric push rods 10 is installed on the top of each group of vertical plates 8, a group of connecting plates 11 is provided above each group of vertical plates 8, and the output end of each group of electric push rods 10 is installed at the bottom of one of the connecting plates 11, a top plate 12 is provided above the base 1, the top of the two groups of connecting plates 11 is installed at the bottom of the top plate 12, and a storage box 13 is installed on the top of the top plate 12.

[0026] Exemplary, as shown in Figure 1 And Figure 3 The bottom center of the storage box 13 is communicated with a conveying pipe 14, the bottom of the conveying pipe 14 penetrates the top plate 12 and is communicated with a connecting pipe 15, a first water pump 16 is arranged on the conveying pipe 14, the first water pump 16 is below the top plate 12, the bottom of the connecting pipe 15 is communicated with several groups of output pipes 17 at equal intervals, several groups of sealing covers 18 are arranged above the base 1 at equal intervals, each group of sealing covers 18 is fixedly sleeved on one of the output pipes 17, and a group of pressure stabilizing pipes 19 is communicated with the top of each group of sealing covers 18.

[0027] Exemplary, as shown in Figure 2 And Figure 4As shown, each group of the stabilizing tube 19 is fixedly sleeved with a group of collection shells 20, the bottom of each group of the collection shells 20 is communicated with a group of conveying pipes 21, the other end of each group of the conveying pipes 21 is communicated on the storage box 13, each group of the conveying pipes 21 is provided with a group of second water pumps 22, each group of the second water pumps 22 is installed on the outer wall of the storage box 13, the inner wall of each group of the stabilizing tube 19 is symmetrically provided with two groups of moving grooves 23, each group of the moving grooves 23 is installed with a group of fixing rods 24, each group of the fixing rods 24 is movably sleeved with a group of moving blocks 25, the stabilizing tube 19 is provided with a piston 26, two groups of the moving blocks 25 are symmetrically installed on a group of the piston 26, each group of the fixing rods 24 is provided with a group of second springs 27, one end of each group of the second springs 27 is installed on the inner wall of the bottom of one group of the moving grooves 23, the other end of each group of the second springs 27 is installed on the bottom of one group of the moving blocks 25, and the outer wall of the stabilizing tube 19 is provided with a pressure relief port 28.

[0028] Working principle: the pressure container is placed on the top of the mounting plate 2, the two groups of clamps 4 are moved to drive the first springs 5 to be extruded and drive the limiting rods 7 to be moved in the limiting grooves 6, and the two groups of clamps 4 are fixed.

[0029] The electric push rod 10 is started to drive the connecting plate 11 to descend and drive the top plate 12 to descend, the top plate 12 drives the storage box 13 to descend and drives the sealing cover 18 to descend, and the pressure container is sealed.

[0030] The first water pump 16 is started, the water in the storage box 13 is conveyed into the connecting pipe 15 through the conveying pipe 14 and then is conveyed into the pressure container through the output pipe 17, the pressure in the pressure container changes, the piston 26 in the stabilizing tube 19 responds, when the pressure increases, the piston 26 moves upwards, the second spring 27 is stretched, the excess gas or liquid is discharged through the pressure relief port 28, and the liquid falls in the collection shell 20, otherwise, when the pressure decreases, the second spring 27 pulls the piston 26 to descend.

[0031] The collection shell 20 at the bottom of the stabilizing tube 19 collects the liquid after pressure regulation, the liquid in the collection shell 20 is transported back to the storage box 13 through the conveying pipe 21, and each group of the conveying pipe 21 is provided with the second water pump 22 to assist the backflow of the liquid, so that a closed circulation system is formed.

[0032] The pressure in the pressure container changes, the piston 26 in the stabilizing tube 19 responds, when the pressure increases, the piston 26 moves upwards, the second spring 27 is stretched, the excess gas or liquid is discharged through the pressure relief port 28, and the liquid falls in the collection shell 20, otherwise, when the pressure decreases, the second spring 27 pulls the piston 26 to descend, so that the dynamic adjustment of the pressure is realized, and the stability of the pressure of the whole system is ensured.

[0033] The collection shell 20 at the bottom of the pressure stabilizing tube 19 collects the liquid after pressure regulation, and the liquid in the collection shell 20 is transported back into the storage tank 13 through the transportation tube 21, and a second water pump 22 is arranged on each set of transportation tubes 21 to assist the return of the liquid, forming a closed circulation system, thereby improving resource utilization.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pressure stabilizing device for hydrostatic testing of pressure vessels comprising a base (1), characterized in that: The upper part of the base (1) is provided with a plurality of groups of sealing covers (18) at equal intervals, the top of each group of sealing covers (18) is communicated with a group of pressure stabilizing tubes (19), the inner wall of each group of pressure stabilizing tubes (19) is symmetrically provided with two groups of moving grooves (23), each group of moving grooves (23) is provided with a group of fixed rods (24), each group of fixed rods (24) is movably sleeved with a group of moving blocks (25), the pressure stabilizing tube (19) is provided with a piston (26), each group of fixed rods (24) is provided with a group of second springs (27), one end of each group of second springs (27) is mounted on the bottom inner wall of one group of moving grooves (23), the other end of each group of second springs (27) is mounted on the bottom of one group of moving blocks (25), and the outer wall of the pressure stabilizing tube (19) is provided with a pressure relief port (28).

2. The pressure vessel hydrostatic testing pressure stabilizing device of claim 1, wherein: The top of the base (1) is provided with a plurality of groups of mounting plates (2) at equal intervals, the top of each group of mounting plates (2) is symmetrically provided with two groups of fixed plates (3), two groups of clamps (4) are symmetrically arranged between the two groups of fixed plates (3), a plurality of groups of first springs (5) are arranged on the side walls of the two groups of clamps (4) away from each other in a rectangular array, and the other end of each group of first springs (5) is mounted on the side wall of the fixed plate (3).

3. The pressure vessel hydrostatic testing pressure stabilizing device of claim 2, wherein: A group of limiting grooves (6) are formed in the side wall of each group of fixed plates (3), and a group of limiting rods (7) are mounted at the center of the side wall of the two groups of clamps (4) away from each other, and the other end of the limiting rod (7) penetrates the limiting groove (6).

4. The pressure vessel hydrostatic testing pressure stabilizing device of claim 1, wherein: The top of the base (1) is symmetrically provided with two groups of vertical plates (8), one group of vertical plates (8) is provided with a control panel (9), one group of electric push rods (10) is mounted on the top of each group of vertical plates (8), one group of connecting plates (11) is arranged above each group of vertical plates (8), and the output end of each group of electric push rods (10) is mounted at the bottom of one group of connecting plates (11).

5. The pressure vessel hydrostatic testing pressure stabilizing device of claim 4, wherein: The top of the base (1) is provided with a top plate (12), the top of the two groups of connecting plates (11) is mounted on the bottom of the top plate (12), and the top of the top plate (12) is provided with a storage box (13).

6. The pressure vessel hydrostatic testing pressure stabilizing device of claim 5, wherein: The bottom center of the storage box (13) is communicated with a conveying pipe (14), the bottom of the conveying pipe (14) penetrates the top plate (12) and is communicated with a connecting pipe (15), the conveying pipe (14) is provided with a first water pump (16), and the first water pump (16) is located below the top plate (12).

7. The pressure vessel hydrostatic testing pressure stabilizing device of claim 6, wherein: The bottom of the connecting pipe (15) is communicated with a plurality of groups of output pipes (17) at equal intervals, each group of sealing covers (18) is fixedly sleeved on one group of output pipes (17), and two groups of moving blocks (25) are symmetrically mounted on one group of pistons (26).

8. The pressure vessel hydrostatic testing pressure stabilizing device of claim 1, wherein: A set of collecting shells (20) is sleeved on each group of said voltage stabilizers (19), the bottom of each group of said collecting shells (20) is communicated with a set of conveying pipes (21), the other end of each group of said conveying pipes (21) is communicated on the storage box (13), a set of second water pumps (22) is arranged on each group of said conveying pipes (21), and each group of said second water pumps (22) is installed on the outer wall of the storage box (13).

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