CN214952602U

CN214952602U - Pressure vessel pressure testing device

Info

Publication number: CN214952602U
Application number: CN202121787208.4U
Authority: CN
Inventors: 吴骏; 顾洪飞; 金杰
Original assignee: NANTONG TANK CONTAINER CO Ltd
Current assignee: NANTONG TANK CONTAINER CO Ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-11-30
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a pressure vessel pressure testing device, including the pressure vessel body, the welding has the takeover screwed joint with taking over the pipe car system on the pressure vessel body, is equipped with the screw plug on the takeover screwed joint, and the bottom of screw plug is inserted in taking over screwed joint, and the male portion of screw plug is equipped with the internal thread, is equipped with the sealing washer between screw plug and the takeover screwed joint. The utility model has the advantages of being simple in structure and convenient in operation, labour saving and time saving, the utility model discloses a refrigerating plant is with pressure vessel minor diameter opens orificial pressure testing device, through threaded connection, adopts the screw end cap to seal the mouth of pipe to reach the demand of pressure vessel pressure testing, the later stage when equipment, directly takes off the screw end cap, is connected the container with corresponding pipeline, has greatly improved production efficiency, has reduced manufacturing cost.

Description

Pressure vessel pressure testing device

Technical Field

The utility model relates to an open orificial pressure testing device structure of pressure vessel especially relates to the pressure vessel minor diameter opens orificial pressure testing for refrigerating plant.

Background

After the pressure containers for the refrigerating device are manufactured, a pressure-resistant test is required, open pipe orifices exist on a plurality of pressure containers, and for the open pipe orifices, certain measures are required to ensure that the pressure containers can be subjected to the pressure-resistant test after reaching a closed state.

At present, most pressure container manufacturers adopt the traditional welding and sealing method for the open pipe orifices, namely, the end part of a pipe orifice connecting pipe is lengthened by about 50mm, and then a temporary sealing plate is manufactured and welded with the connecting pipe to enable the container to reach a closed state.

However, this approach has the following drawbacks:

the welding seam of the welding position of the temporary sealing plate and the connecting pipe is fillet welding seam, the fillet welding seam cannot bear large pressure testing pressure, and when the pressure testing pressure is large, the fillet welding seam is easy to leak.

The interim shrouding of cutting off after the pressure testing is accomplished, when cutting off interim shrouding, inside some cutting bits impurity can fall into the container, pressure vessel for refrigerating plant generally can not set up the manhole, and the inside impurity of container is difficult to thoroughly clear away after the cutting, and refrigerating unit can be harmd when the unit moves to cause loss of property.

And after cutting, the iron oxide needs to be removed, and the groove is formed again according to the process file, so that time and labor are wasted.

The temporary closure plate is generally not reusable, wasting material.

Disclosure of Invention

An object of the utility model is to provide a pressure vessel pressure testing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the pressure vessel pressure test device comprises a pressure vessel body, wherein a connecting pipe screwed joint which is turned by a connecting pipe is welded on the pressure vessel body, a threaded plug is arranged on the connecting pipe screwed joint, the bottom of the threaded plug is inserted into the connecting pipe screwed joint, an inserting part of the threaded plug is provided with an internal thread, and a sealing ring is arranged between the threaded plug and the connecting pipe screwed joint.

The utility model discloses a further improvement lies in: the upper surface of the threaded plug is provided with a polygonal bulge, so that the threaded plug is convenient to take.

The utility model discloses a further improvement lies in: a tool withdrawal groove is arranged in the connecting pipe threaded joint.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages of being simple in structure and convenient in operation, labour saving and time saving, the utility model discloses a refrigerating plant is with pressure vessel minor diameter opens orificial pressure testing device, through threaded connection, adopts the screw end cap to seal the mouth of pipe to reach the demand of pressure vessel pressure testing, the later stage when equipment, directly takes off the screw end cap, is connected the container with corresponding pipeline, has greatly improved production efficiency, has reduced manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a threaded plug;

FIG. 3 is a top view of FIG. 2;

reference numbers in the figures: 1-pressure container body, 2-connecting pipe screwed joint, 3-screwed plug, 3-1-internal thread, 4-sealing ring, 5-polygonal bulge and 6-tool withdrawal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment provides a technical scheme: a pressure vessel pressure test device comprises a pressure vessel body 1, wherein a connecting pipe screwed joint 2 which is turned by a connecting pipe is welded on the pressure vessel body 1, a threaded plug 3 is arranged on the connecting pipe screwed joint 2, the bottom of the threaded plug 3 is inserted into the connecting pipe screwed joint 2, an inserting part of the threaded plug 3 is provided with internal threads 3-1, and a sealing ring 4 is arranged between the threaded plug 3 and the connecting pipe screwed joint 2. A tool withdrawal groove 6 is arranged in the connecting pipe threaded joint 2. As shown in fig. 2 and 3, the upper surface of the threaded plug 3 is provided with a polygonal protrusion 5, which is convenient for taking by using a wrench.

The method comprises the steps of processing one end of an open pipe orifice on a pressure container for a refrigerating device into a connecting pipe threaded connector, calculating the minimum wall thickness requirement required by a connecting pipe by using special calculation software according to the pressure requirement of pressure testing, ensuring that the minimum wall thickness of the turned connecting pipe threaded connector meets the minimum wall thickness requirement required by calculation (namely the wall thickness of the connecting pipe threaded connector is not less than or equal to the minimum wall thickness, so that the connecting pipe threaded connector is not easy to break and ensures the use safety), welding the connecting pipe threaded connector on a pressure container body according to the requirement of a design drawing, manufacturing a threaded plug corresponding to the connecting pipe threaded connector after the equipment is manufactured, and meanwhile, providing a pressure testing sealing gasket to seal the pipe orifice through threaded connection, thereby meeting the requirement of pressure testing of the pressure container. And in the later stage, when the equipment is assembled, the threaded plug is directly taken down, and the container is connected with the corresponding pipeline.

The utility model reduces the workload of container manufacture, does not need to adopt the form of temporary sealing plate to plug the pipe orifice, and can plug the pipe orifice easily; after the pressure test is finished, the temporary sealing plate does not need to be cut, the pressure container can be directly connected to a corresponding pipeline, flame cutting is generally adopted for cutting the temporary sealing plate, industrial gas waste is caused, and harmful gas is generated, so that the environmental protection is not facilitated; impurities such as cutting scrap iron and the like can not be generated to enter the pressure container without cutting, so that the cleanness inside the pressure container is ensured, and the machine set equipment is prevented from being damaged when the machine set operates; the threaded plug for pressure testing can be repeatedly used for many times.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

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

Claims

1. The pressure vessel pressure testing device comprises a pressure vessel body (1), and is characterized in that: the pressure vessel is characterized in that a connecting pipe threaded connector (2) which is turned by a connecting pipe is welded on the pressure vessel body (1), a threaded plug (3) is arranged on the connecting pipe threaded connector (2), the bottom of the threaded plug (3) is inserted into the connecting pipe threaded connector (2), an inner thread (3-1) is arranged at the inserted part of the threaded plug (3), and a sealing ring (4) is arranged between the threaded plug (3) and the connecting pipe threaded connector (2).

2. The pressure vessel testing device of claim 1, wherein: the upper surface of the threaded plug (3) is provided with a polygonal bulge (5) which is convenient to take.

3. The pressure vessel testing device of claim 1, wherein: a tool withdrawal groove (6) is arranged in the connecting pipe threaded joint (2).