A pressure test cover without changing the internal structure of the pressure tank

Abstract

The utility model relates to a kind of pressure test sealing cover without changing the internal structure of pressure tank, including pressure tank body, the inside of pressure tank body is provided with main pressure oil pipe and oil inlet pipe, the end of main pressure oil pipe is installed with main pressure oil pipe sealing cover rubber plate and main pressure oil pipe sealing cover, the end of oil inlet pipe is installed with oil inlet pipe sealing cover rubber plate and oil inlet pipe sealing cover, oil inlet pipe sealing cover and main pressure oil pipe sealing cover are fixed by oil pipe sealing cover compression bolt, the side of pressure tank body is provided with manhole flange, manhole flange surface is installed with manhole flange cover, the utility model is sealed by temporarily installing tank oil pipe sealing cover and sealing rubber plate, realizes the pressure test of not changing the internal structure of pressure tank, simplifies pressure test procedure, reduces cutting and cleaning procedure, improves production efficiency, and ensures the cleanliness and structural integrity inside tank body.

Description

Technical Field

[0001] This utility model relates to the field of pressure test caps, specifically a pressure test cap that does not alter the internal structure of a pressure tank. Background Technology

[0002] In the existing technology, before welding the pressure tank, the steel pipe inside the tank is usually lengthened and a flange is welded to the pipe end. Then, the pipe end is sealed with a flange cover. After the test pressure of the entire pressure tank is completed and the test pressure is qualified, the manhole flange cover needs to be removed and the pipe end flange cover is removed. The excess steel pipe length is cut off with an angle grinder according to the drawing requirements. Then, the impurities inside the pressure tank are cleaned again and the manhole flange cover is reinstalled.

[0003] Existing technologies have drawbacks in use, requiring the lengthening and cutting of the steel pipes inside the tank. This not only increases processing steps and material consumption but also easily introduces cutting residues and impurities, making it more difficult to clean the inside of the tank and affecting the overall quality and service life of the pressure tank. At the same time, repeated disassembly and reassembly of the flange cover also increases operational complexity and potential safety risks. Therefore, we propose a pressure test cover that does not change the internal structure of the pressure tank. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a pressure test cover that does not change the internal structure of the pressure tank. This solves the technical problem that the current requirement to lengthen and cut the steel pipe inside the tank not only increases the processing steps and material consumption, but also easily introduces cutting residue and impurities, making it more difficult to clean the inside of the tank, affecting the overall quality and service life of the pressure tank. At the same time, the repeated disassembly and assembly of the flange cover also increases the complexity of operation and potential safety risks.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a pressure test cover that does not change the internal structure of the pressure tank is designed, including a pressure tank body, a main pressure oil pipe and an oil inlet pipe are provided inside the pressure tank body, a main pressure oil pipe cover rubber plate and a main pressure oil pipe cover are installed at the end of the main pressure oil pipe, an oil inlet pipe cover rubber plate and an oil inlet pipe cover are installed at the end of the oil inlet pipe, the oil inlet pipe cover and the main pressure oil pipe cover are fixed by oil pipe cover clamping bolts, a manhole flange is provided on the side of the pressure tank body, and a manhole flange cover is installed on the surface of the manhole flange.

[0006] Preferably, one end of the main pressure oil pipe is connected to the level gauge flange.

[0007] Preferably, the bottom of the pressure tank is provided with a first oil inlet flange, a first oil drain flange, a main pressure oil flange, a second oil drain flange, and a second oil inlet flange.

[0008] Preferably, the rubber plate for sealing the oil inlet pipe and the rubber plate for sealing the main pressure oil pipe are used to provide a sealing effect, so as to achieve the sealing performance of the oil pipe in the tank at 1.25 times the rated oil pressure during the pressure test.

[0009] Preferably, the oil pipe cap tightening bolt is used to tighten and fix the cap and rubber plate, facilitating installation and disassembly.

[0010] Preferably, the manhole flange cover is installed before the pressure test and removed after the pressure test to remove the internal sealing assembly.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model achieves pressure testing and sealing without altering the internal structure of the pressure tank by temporarily installing an oil pipe cap and a sealing rubber plate inside the tank. This simplifies the pressure testing process, reduces cutting and cleaning procedures, improves production efficiency, and ensures the cleanliness and structural integrity of the tank interior. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the oil pipe capping tool of this utility model;

[0016] In the diagram: 1. Pressure tank body; 2. Main pressure oil pipe; 3. Level gauge flange; 4. Oil inlet pipe; 5. Oil inlet pipe cover rubber plate; 6. Oil inlet pipe cover; 7. Main pressure oil pipe cover rubber plate; 8. Main pressure oil pipe cover; 9. Manhole flange; 10. Manhole flange cover; 11. First oil inlet flange; 12. First oil drain flange; 13. Main pressure oil flange; 14. Second oil drain flange; 15. Second oil inlet flange; 16. Oil pipe cover clamping bolts. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Example 1: A pressure test cover that does not change the internal structure of a pressure tank includes a pressure tank body 1. The pressure tank body 1 is provided with a main pressure oil pipe 2 and an oil inlet pipe 4. The end of the main pressure oil pipe 2 is equipped with a main pressure oil pipe 2 cover rubber plate and a main pressure oil pipe 2 cover. The end of the oil inlet pipe 4 is equipped with an oil inlet pipe 4 cover rubber plate and an oil inlet pipe 4 cover. The oil inlet pipe 4 cover and the main pressure oil pipe 2 cover are fixed by oil pipe cover clamping bolts 16. A manhole flange 9 is provided on the side of the pressure tank body 1, and a manhole flange 9 cover is installed on the surface of the manhole flange 9.

[0019] Before assembling the pressure tank, install the oil pipe cover and sealing rubber plate inside the tank according to the pressure testing pipeline, tighten all the clamping bolts with a wrench, and install the manhole flange 9 cover.

[0020] For details, see Figure 1 One end of the main pressure oil pipe 2 is connected to the level gauge flange 3.

[0021] Further, see Figure 2 The bottom of the pressure tank 1 is provided with a first oil inlet flange 11, a first oil drain flange 12, a main pressure oil flange 13, a second oil drain flange 14, and a second oil inlet flange 15.

[0022] It is worth noting that, see Figure 1 The rubber seals on the inlet pipe 4 and the main pressure pipe 2 are used to provide a sealing effect, ensuring the sealing of the oil pipes inside the tank at 1.25 times the rated oil pressure during pressure testing.

[0023] During the pressure test, seal the unrelated external flanges and pipe openings with flange covers or plugs. Since the internal oil pipe cover is installed, the sealing of the internal oil pipe under the original structure of the pressure tank can be guaranteed at 1.25 times the rated oil pressure. After the pressure test is qualified, remove the manhole flange 9 cover, then remove the internal oil pipe cover and sealing rubber plate, and install the manhole cover according to the drawings. This completes the conditions for painting.

[0024] It is worth noting that, see Figure 3 The oil pipe cap tightening bolt 16 is used to tighten and fix the cap and rubber plate, making it easy to install and disassemble.

[0025] It is worth mentioning that, see Figure 1 The manhole flange 9 cover is installed before pressure testing and removed after pressure testing to allow for the removal of the internal cover assembly.

[0026] When using a pressure test cover that does not alter the internal structure of the pressure tank, before assembling the pressure tank, install the inner oil pipe cover and sealing rubber plate according to the pressure testing pipeline. Tighten all clamping bolts with a wrench and install the manhole flange 9 cover. During the pressure test, use flange covers or plugs to seal any unrelated outer flanges and pipe openings. Because the inner oil pipe cover is installed, the sealing of the inner oil pipe under the original pressure tank structure can be guaranteed at 1.25 times the rated oil pressure. After the pressure test is passed, remove the manhole flange 9 cover, then remove the inner oil pipe cover and sealing rubber plate, and install the manhole cover according to the drawings. This completes the conditions for painting.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A pressure test closure which does not change the internal structure of a pressure tank, comprising a pressure tank body (1), characterized in that, The pressure tank (1) is equipped with a main pressure oil pipe (2) and an oil inlet pipe (4). The end of the main pressure oil pipe (2) is equipped with a main pressure oil pipe sealing rubber plate (7) and a main pressure oil pipe sealing cover (8). The end of the oil inlet pipe (4) is equipped with an oil inlet pipe sealing rubber plate (5) and an oil inlet pipe sealing cover (6). The oil inlet pipe sealing cover (6) and the main pressure oil pipe sealing cover (8) are fixed by oil pipe sealing cover clamping bolts (16). The side of the pressure tank (1) is equipped with a manhole flange (9). A manhole flange cover (10) is installed on the surface of the manhole flange (9).

2. The pressure test closure of claim 1, wherein, One end of the main pressure oil pipe (2) is connected to the level gauge flange (3).

3. The pressure test cover as described in claim 1, which does not alter the internal structure of the pressure tank, is characterized in that... The bottom of the pressure tank (1) is provided with a first oil inlet flange (11), a first oil drain flange (12), a main pressure oil flange (13), a second oil drain flange (14), and a second oil inlet flange (15).

4. The pressure test closure of claim 1, wherein, The inlet pipe sealing rubber plate (5) and the main pressure oil pipe sealing rubber plate (7) are used to provide a sealing effect and achieve the sealing performance of the oil pipe in the tank at 1.25 times the rated oil pressure during the pressure test.

5. The pressure test closure of claim 1, wherein, The oil pipe cap clamping bolt (16) is used to tighten and fix the cap and rubber plate, which facilitates installation and disassembly.

6. The pressure test closure of claim 1, wherein, The manhole flange cover (10) is installed before the pressure test and removed after the pressure test to remove the internal sealing assembly.

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