CN205228724U - Exhaust apparatus that pressure vessel hydraulic pressure test used - Google Patents

Abstract

The utility model discloses an exhaust device for a pressure vessel hydraulic test in the field of pressure vessels, comprising: a container body, the container body includes a cylinder body and a head, the head is provided with several head connecting pipes, and one of the head connecting pipes is A water inlet pipe is detachably provided, and the ends of the other head joints are kept closed, and the other end of the water inlet pipe is provided with a water inlet; the water inlet pipe bends upwards along the radial direction of the cylinder so that the horizontal position of the water inlet is higher than the cylinder body The top side wall of the container; the container body, the head joint and the water inlet pipe are pierced with an exhaust pipe, the inner end of the exhaust pipe is arranged inside the container body, and the outer end of the exhaust pipe protrudes from the water inlet, and When the liquid enters the container body from the water inlet pipe, the nozzle at the inner end of the exhaust pipe can always be above the liquid level until all the gas in the container body is discharged. The utility model has the advantages of no need to erect the container body during the hydraulic test, convenient operation, and no limitation of the height of the factory building.

Description

Exhaust device for hydraulic test of pressure vessel

technical field

The utility model relates to the field of pressure vessels, in particular to an exhaust device for hydraulic tests.

Background technique

After the pressure vessel is manufactured, in order to check whether there is leakage or abnormal deformation of the pressure vessel, it is necessary to conduct a pressure test (referred to as hydraulic test) on the pressure vessel with liquid as the medium to check whether the pressure vessel can operate safely and stably under the design pressure. run. The hydraulic test needs to ensure that the pressure vessel is filled with liquid and all the gas inside is discharged. At present, the vertical hydraulic test is often used in the industry, that is, the pressure vessel is erected vertically and then the liquid is poured into the pressure vessel from the head joint on the top of the pressure vessel. , as the liquid level in the pressure vessel rises, the air inside the pressure vessel will naturally be discharged from the head joint on the top of the pressure vessel. When the pressure vessel is filled with liquid, all the air in the pressure vessel will also be discharged. However, the above-mentioned exhaust method has the following disadvantages: if the container body is very long, the vertical hydraulic test cannot be carried out due to conditions such as the height of the factory building and the difficulty of operation.

Utility model content

The technical problem to be solved by the utility model is to provide an exhaust device with simple structure and convenient operation, which can be used for hydraulic pressure test of large pressure vessels.

In order to solve the above problems, the technical solution adopted by the utility model is: the exhaust device for the hydraulic pressure test of the pressure vessel, including: a horizontal container body, the container body includes a cylinder body and a head located at both ends of the cylinder body, and the head is provided with There are several head connecting pipes, one of which is detachably provided with a water inlet pipe, the ends of the other head connecting pipes are kept closed, and the other end of the water inlet pipe is provided with a water inlet; the water inlet pipe is arranged along the radial direction of the cylinder It bends upwards and extends so that the horizontal position of the water inlet is higher than the top side wall of the cylinder; the container body, the head joint and the water inlet pipe are pierced with an exhaust pipe, and the inner end of the exhaust pipe is arranged inside the container body, and the exhaust pipe The outer end of the pipe passes through the head joint and the water inlet pipe in turn, and then protrudes from the water inlet, and when the liquid enters the container body from the water inlet pipe, the inner end of the exhaust pipe can always be above the liquid level, Until the gas in the container body is completely discharged.

Further, the aforementioned exhaust device for hydraulic pressure test of pressure vessel, wherein: the specific connection structure between the water inlet pipe and the head connecting pipe is: the outer end of the head connecting pipe is provided with a first flange, and the water inlet pipe correspondingly A second flange matching the first flange is provided, and the first flange and the second flange are tightly and fixedly connected by bolts.

Further, the aforementioned exhaust device for hydraulic pressure testing of pressure vessels, wherein: the inner end of the exhaust pipe is adhered and fixed at the top position of the inner wall of the cylinder.

Further, in the aforementioned exhaust device for hydraulic pressure testing of pressure vessels, wherein: the inner end of the exhaust pipe is fixed on a floating member that can float on the liquid surface.

Further, the aforementioned exhaust device for hydraulic pressure testing of pressure vessels, wherein: the floating member is a soft foam board, and the inner end of the exhaust pipe penetrates upward through the soft foam board to be fixed on the soft foam board.

The beneficial effect of the utility model is that the exhaust work can be completed without erecting the container body during the hydraulic test, and the operation is convenient and not limited by the height of the factory building.

Description of drawings

Fig. 1 is a structural schematic diagram of the first embodiment of the exhaust device for the hydraulic pressure test of the pressure vessel according to the utility model.

Fig. 2 is a schematic diagram of the use state of the second embodiment of the exhaust device for the hydraulic pressure test of the pressure vessel of the present invention.

detailed description

The technical scheme described in the utility model will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Embodiment one.

As shown in Figure 1, the exhaust device for the pressure vessel hydraulic pressure test described in this embodiment includes: a horizontal container body 1, the container body 1 includes a cylinder body 11 and seal heads 12 located at both ends of the cylinder body 11, the seals The head 12 is provided with several head connecting pipes 2 , and a water inlet pipe 3 is detachably arranged on the uppermost head connecting pipe 2 . In this embodiment, the specific connection structure between the water inlet pipe 3 and the head connecting pipe 2 is as follows: the outer end of the head connecting pipe 2 is provided with a first flange 21, and the water inlet pipe 3 is correspondingly provided with a first flange 21. The flange 21 matches the second flange 31, the first flange 21 and the second flange 31 are sealed and fixedly connected by bolts 23, and the fixing method between the head connecting pipe 2 and the water inlet pipe 3 adopts Flange connection, convenient and fast disassembly and installation, and good sealing performance. Except for the water inlet pipe 3, the outer ends of the other head connecting pipes 2 are kept closed. A blind plate 25 is provided, and the flange plate 24 and the blind plate 25 are sealed and fixedly connected by fastening bolts 26 . An outer end of the water inlet pipe 3 is provided with a water inlet 32, and the water inlet pipe 3 bends upwards along the radial direction of the cylinder 11 and extends so that the horizontal position of the water inlet 32 is higher than the top side wall of the cylinder 11; the exhaust pipe The inner end of 4 passes through the water inlet pipe 3 and the head joint 2 in turn and enters the container body 1, and the inner end of the exhaust pipe 4 is arranged on the top wall in the cylinder body 11, and the outer end of the exhaust pipe 4 is located from the The water inlet 32 protrudes outward from the water inlet 32, so that when the liquid enters the container body 1 from the water inlet 32 through the water inlet pipe 3, the inner end nozzle of the exhaust pipe 4 can always be above the liquid level, Until the gas in the container body 1 is completely discharged. In this embodiment, the inner end of the exhaust pipe 4 is adhered and fixed on the top position of the inner wall of the cylinder body 11. When the liquid level in the container body 1 gradually rises, the gas inside the container body 1 passes through the exhaust pipe 4 to Finally, it can ensure that the gas inside the container body 1 is completely discharged.

The method of using the exhaust device for the above-mentioned pressure vessel hydraulic pressure test is as follows: without standing up the container body 1, keep the container body 1 in a recumbent state, pass liquid into the container body 1 from the water inlet 32, and the inside of the container body 1 The liquid level rises gradually. Since the inner end of the exhaust pipe 4 is adhered and fixed on the top position of the inner wall of the cylinder body 11, it can be ensured that the gas inside the container body 1 is discharged through the exhaust pipe 4 earlier than the liquid until the container body 1 The interior is filled with liquid and all gas is exhausted.

Embodiment two.

As shown in Figure 2, it is the second preferred embodiment of the exhaust device for the hydraulic pressure test of the pressure vessel described in the present invention. The main difference between this embodiment and the first preferred embodiment is that the exhaust pipe 4 The inner end of the exhaust pipe 4 is fixed on a floating piece 5 that can float on the liquid surface. The floating piece 5 is a soft foam board, and the inner end of the exhaust pipe 4 is inserted upward through the soft foam board 5 to be fixed on the soft foam board 5 , because the foam soft plate 5 can rise with the rise of the liquid level, so the position of the mouth of the inner end of the exhaust pipe 4 can always be above the liquid level until all the gas inside the container body 1 is discharged. The rest of the structure of this embodiment is the same as that of the first preferred embodiment, and will not be repeated here.

The utility model has the advantages of the exhaust device for the hydraulic test of the pressure vessel: the exhaust can be completed without standing up the container body during the hydraulic test, and the operation is convenient and not limited by the height of the factory building.

Claims (5)

1. The exhaust device for the hydraulic pressure test of the pressure vessel, including: a horizontal container body, the container body includes a cylinder body and heads located at both ends of the cylinder body, and several head joints are arranged on the head, and the characteristic is that one of them A water inlet pipe is detachably arranged on the head connecting pipe, and the ends of the other head connecting pipes are kept closed, and the other end of the water inlet pipe is provided with a water inlet; The horizontal position is higher than the top side wall of the cylinder; the container body, the head connection pipe and the water inlet pipe are pierced with an exhaust pipe, the inner end of the exhaust pipe is set inside the container body, and the outer end of the exhaust pipe passes through the seal in turn. After the head connects the water inlet pipe, it protrudes from the water inlet, and when the liquid enters the container body from the water inlet pipe, the inner end of the exhaust pipe can always be above the liquid level until the gas in the container body is completely exhausted. discharge. 2. The exhaust device for pressure vessel hydraulic test according to claim 1, characterized in that: the specific connection structure between the water inlet pipe and the head connecting pipe is: the outer end of the head connecting pipe is provided with a first flange The water inlet pipe is correspondingly provided with a second flange matching the first flange, and the first flange and the second flange are tightly and fixedly connected by bolts. 3. The exhaust device for pressure vessel hydraulic test according to claim 1 or 2, characterized in that: the inner end of the exhaust pipe is adhered and fixed at the top position of the inner wall of the cylinder. 4. The exhaust device for pressure vessel hydraulic test according to claim 1 or 2, characterized in that: the inner end of the exhaust pipe is fixed on a floating member that can float on the liquid surface. 5. The exhaust device for pressure vessel hydraulic test according to claim 4, characterized in that: the floating member is a soft foam board, and the inner end of the exhaust pipe is inserted upward through the soft foam board to be fixed on the soft foam board superior.