Steam pipe welding opening sealing performance detection device

Abstract

The utility model relates to the technical field of weld joint sealing detection, in particular to a steam pipe weld joint sealing detection device, which comprises a shell detection assembly, a pressure pipeline arranged on the outer wall of the shell and a pressure gauge arranged on the outer wall of the pressure pipeline. The sealing assembly comprises a threaded sleeve, a push block arranged on the inner wall of the shell, a moving block arranged at the end of the push block, a fixed block arranged at the end of the moving block and an air cylinder arranged on the outer wall of the shell; the pushing block is driven by the threaded sleeve to move, so that the sealing ring deforms and is attached to the outer wall of the steam pipeline, meanwhile, the air cylinder pushes the pushing plate to move, the pipeline opening of the steam pipeline is blocked by the elastic block, and the deformed sealing ring is further pressed by the pressing ring, so that the sealing ring is further attached to the outer wall of the steam pipeline; the shell and the outer wall of the steam pipe form a closed space, and the sealing performance of a welding opening can be detected conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of welding port sealing detection, in particular to a steam pipe welding port sealing detection device. Background Art

[0002] Steam pipes play a vital role in industrial production and daily life. They are widely used in heating, power generation, chemical industry and other fields. However, since steam pipes are usually subjected to high temperature and high pressure environment, the sealing of welding joints, as an important part of the pipeline, directly affects the safe operation of the pipeline.

[0003] At present, a variety of technical methods have been developed for testing the sealing of steam pipe welding joints. Among them, kerosene penetration test and airtightness test are relatively common methods. It uses the strong permeability of kerosene to brush kerosene on one side of the weld and observe whether there is kerosene seepage on the other side to judge the sealing of the weld. The airtightness test is carried out by applying soapy water on the outside of the weld or the sealing surface and observing whether bubbles appear to test the sealing of the weld.

[0004] With the continuous advancement of science and technology, the steam pipe welding joint sealing detection technology is also constantly updated and improved. For example, helium mass spectrometry test, as an emerging sealing detection method, has received extensive attention and application in recent years due to its extremely high sensitivity. This method determines the sealing of the welding joint by detecting the amount of helium leakage, and has the advantages of high detection accuracy and fast speed.

[0005] However, all of the above methods have certain limitations. Since the steam pipe is installed and used outdoors, and each section of the steam pipe is not necessarily horizontal or vertical during inspection, kerosene penetration and soapy water observation may cause it to slide off the outer wall of the steam pipe, resulting in certain errors in the inspection results. The helium mass spectrometry experiment has certain requirements for the external environment. The helium mass spectrometry experiment is to add helium to the inside of the pipeline, and the helium mass spectrometer scans the welding joint area outside the pipeline. For longer pipelines, the cost is relatively high, and it is easily affected by the external environment outdoors, which makes the inspection results have certain errors. Utility Model Content

[0006] In view of the above problems in the prior art, the present utility model is proposed.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a steam pipe welding port sealing detection device, which includes a shell detection assembly, including a shell, a pressure pipe arranged on the outer wall of the shell, and a pressure gauge arranged on the outer wall of the pressure pipe; and,

[0008] The sealing component comprises a screw sleeve, a push block arranged on the inner wall of the shell, a moving block arranged on the end of the push block, a fixed block arranged on the end of the moving block and a cylinder arranged on the outer wall of the shell.

[0009] As a preferred solution of the steam pipe welding port sealing detection device of the utility model, the outer wall of the shell is provided with a threaded groove, the inner wall of the shell is provided with a first fixing ring, the outer wall of the shell is provided with a receiving groove, and the outer wall of the receiving groove is provided with a movable groove.

[0010] As a preferred solution of the steam pipe welding port sealing detection device described in the utility model, wherein: the screw sleeve is sleeved on the outer wall of the shell, a slope is provided at the end of the screw sleeve, the push block is movably arranged on the inner wall of the accommodating groove, an inclined groove is provided on the end face of the push block, a moving groove is provided on the end face of the push block, a sliding groove is provided on the end face of the moving groove, and a first elastic member is provided at the end of the push block.

[0011] As a preferred solution of the steam pipe welding port sealing detection device of the utility model, the outer wall of the push block is provided with a moving rod, the end of the moving rod is provided with a first sliding column, and the first sliding column is movably arranged inside the inclined groove and slidably cooperates with it.

[0012] As a preferred solution of the steam pipe welding port sealing detection device described in the utility model, wherein: the moving rod is movably arranged on the inner wall of the accommodating groove, the outer wall of the moving rod is provided with a push rod, the end of the push rod extends to the outside of the movable groove and is provided with a push ring at the end, the end face of the push ring is provided with a second fixing ring, the inner wall of the second fixing ring is fixed with a sealing ring, and the other end of the sealing ring is fixed to the inner wall of the first fixing ring.

[0013] As a preferred solution of the steam pipe welding port sealing detection device described in the utility model, the outer wall of the moving block is provided with a second sliding column, the end of the second sliding column extends to the inner wall of the sliding groove and slides with it, the end of the moving block is provided with a support foot, the outer wall of the support foot is provided with a groove, and the end of the groove is provided with a limiting groove.

[0014] As a preferred solution of the steam pipe welding port sealing detection device of the utility model, wherein: a limit block is provided on the outer wall of the fixing block, and the outer wall of the fixing block extends to the inner wall of the groove and slidably cooperates therewith.

[0015] As a preferred solution of the steam pipe welding port sealing detection device of the utility model, the limiting block is slidably matched with the limiting groove, a connecting block is provided at the end of the fixing block, and the connecting block is screwed to the inner wall of the shell.

[0016] As a preferred solution of the steam pipe welding port sealing detection device of the utility model, the cylinder is fixed to the outer wall of the shell, the outer wall of the cylinder is provided with a push plate, the outer wall array of the push plate is provided with a connecting rod, and the other end of the connecting rod is provided with a pressing ring.

[0017] As a preferred solution of the steam pipe welding port sealing detection device described in the utility model, the end face of the push plate is provided with a sleeve, a telescopic rod is movably provided in the sleeve, a fixed plate is provided at the other end of the telescopic rod, an elastic block is provided on the outer wall of the fixed plate, and a second elastic member is provided at the other end of the fixed plate.

[0018] The beneficial effects of the utility model are as follows: the utility model drives the push block to move through the threaded sleeve, so that the sealing ring is deformed and fits against the outer wall of the steam pipe. At the same time, the cylinder pushes the push plate to move, so that the elastic block blocks the pipe opening of the steam pipe, and the pressing ring further presses the deformed sealing ring, so that the sealing ring further fits against the outer wall of the steam pipe, so that the shell and the outer wall of the steam pipe form a closed space, which is convenient for detecting the sealing of the welding joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a side sectional view of the shell in the utility model.

[0022] Figure 3 It is a sectional view of the overall structure of the utility model.

[0023] Figure 4 It is an enlarged schematic diagram of the structure at point A in the present utility model.

[0024] Figure 5 It is a schematic diagram of the deformation process of the sealing ring in the utility model.

[0025] Figure 6 It is a cross-sectional schematic diagram of the push block in the utility model. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 , Figure 2 , which is the first embodiment of the utility model, provides a steam pipe welding port sealing detection device.

[0031] Specifically, the shell detection assembly 100 includes a shell 101, a pressure pipe 102 disposed on the outer wall of the shell 101, and a pressure gauge 103 disposed on the outer wall of the pressure pipe 102; and,

[0032] The sealing assembly 200 includes a screw sleeve 201 , a push block 202 disposed on the inner wall of the housing 101 , a moving block 203 disposed at the end of the push block 202 , a fixed block 204 disposed at the end of the moving block 203 , and a cylinder 205 disposed on the outer wall of the housing 101 .

[0033] Among them, the shell 101 is entirely sleeved on the outside of the steam pipe Z, and there is a protective layer Z-1 on the outside of the steam pipe Z. A pressure pipe 102 is provided on the outer wall of the shell 101. Pressurized gas is added to the interior of the shell 101 through the pressure pipe 102. Then, the valve of the pressure pipe 102 is closed, and the pressure gauge 103 installed on the pressure pipe 102 is observed to see whether the pressure inside the shell 101 changes.

[0034] After the shell 101 is sleeved on the outside of the steam pipe Z, the screw sleeve 201 outside the shell 101 is rotated to move the screw sleeve 201 outside the shell 101. When the screw sleeve 201 moves, it squeezes the push block 202 on the outer wall of the shell 101, so that the push block 202 moves downward. When the push block 202 moves downward, it drives the motion block 203 to move downward and contact the outer wall of the steam pipe Z, so that the shell 101 is fixed to the outside of the steam pipe Z. At the same time, the motion rod 202e on the outer wall of the push block 202 is in the shell 1 01 slides inside, pushing the sealing ring 202h at the end to move, causing the sealing ring 202h to deform and the center point to hit the outer wall of the steam pipe Z. Then the cylinder 205 outside the shell 101 drives the internal elastic block 205g to block the pipe opening of the steam pipe Z. At the same time, the pressing ring 205c squeezes the deformed sealing ring 202h to make it fit more closely to the outer wall of the steam pipe Z, so that the interior of the shell 101 is sealed through the sealing ring 202h, and the external pressure gas will not leak from the inside of the shell 101.

[0035] In summary, when in use, the shell 101 is first sleeved on the outer wall of the steam pipe Z, the sealing ring 202h is located behind the welding part of the steam pipe Z, the outer screw sleeve 201 is first rotated to make the screw sleeve 201 move backward, and the push block 202 is squeezed by the screw sleeve 201, so that the push block 202 moves downward inside the shell 101. When the push block 202 moves downward, the moving block 203 at the bottom moves to squeeze and fix the steam pipe Z, and the shell 101 is fixed to the outside of the steam pipe Z. While the push block 202 drives the moving block 203 to fix the shell 101, the moving rod 202e outside the push block 202 is moved together in the shell 10 1 moves inside, driving the sealing ring 202h inside the shell 101 to move, deform, and stick to the outer wall of the steam pipe Z. Then the cylinder 205 drives the elastic block 205g to move, blocking the pipe opening of the steam pipe Z. At the same time, the pressing ring 205c squeezes the deformed sealing ring 202h, so that the sealing ring 202h fits the steam pipe Z more closely. The elastic block 205g and the sealing ring 202h form a sealed space between the steam pipe Z and the inner cavity of the shell 101. Then, the pressure gas is added to the cavity through the pressure pipe 102. Then, the valve is closed, and the pressure in the cavity is observed to see whether it changes to distinguish the sealing performance at the welding port of the steam pipe Z.

[0036] Example 2

[0037] Reference Figure 2 to Figure 6 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0038] Specifically, a thread groove 101a is formed on the outer wall of the shell 101, a first fixing ring 101b is provided on the inner wall of the shell 101, a receiving groove 101c is formed on the outer wall of the shell 101, and a movable groove 101d is formed on the outer wall of the receiving groove 101c.

[0039] Among them, the thread groove 101a is opened on the outer wall of the shell 101, the inner wall of the screw sleeve 201 has a thread corresponding to the thread groove 101a, and a first fixing ring 101b is fixed to the inner wall of the cavity inside the shell 101. The accommodating groove 101c is opened at the bottom end of the outer wall of the shell 101, and the accommodating groove 101c penetrates the outer wall of the shell 101. A movable groove 101d is opened in the middle position of the accommodating groove 101c, and the movable groove 101d penetrates into the cavity inside the shell 101.

[0040] Preferably, the screw sleeve 201 is sleeved on the outer wall of the shell 101, a slope 201a is provided at the end of the screw sleeve 201, the push block 202 is movably provided on the inner wall of the accommodating groove 101c, an inclined groove 202a is provided on the end face of the push block 202, a moving groove 202b is provided on the end face of the push block 202, a sliding groove 202c is provided on the end face of the moving groove 202b, and a first elastic member 202d is provided on the end of the push block 202.

[0041] Among them, the screw sleeve 201 cooperates with the thread groove 101a on the outer wall of the shell 101, moves outside the shell 101, and is also limited by the thread groove 101a. A slope 201a is provided on the inner wall of the screw sleeve 201 close to the bottom of the shell 101, and the slope 201a cooperates with the inclined surface at the top of the push block 202. When the screw sleeve 201 moves on the outer wall of the shell 101, the slope 201a contacts the inclined surface of the push block 202, and squeezes the push block 202, so that the push block 202 moves downward inside the accommodating groove 101c at the tail of the shell 101.

[0042] The inclined groove 202a runs through the surface of the push block 202, and the inclination direction of the inclined groove 202a is opposite to the direction of the inclined surface. The moving grooves 202b are symmetrically opened at both sides of the bottom of the push block 202. The two moving grooves 202b are separated by a certain distance in the middle, and a first elastic member 202d is fixed at the middle position of the separation. At the same time, a sliding groove 202c is opened in the middle of each side of the moving groove 202b.

[0043] A moving rod 202e is disposed on the outer wall of the push block 202, and a first sliding column 202e-1 is disposed at the end of the moving rod 202e. The first sliding column 202e-1 is movably disposed inside the inclined groove 202a and slidably cooperates therewith.

[0044] Among them, the moving rod 202e is arranged on the outside of the push block 202, and the end position of the moving rod 202e can move left and right outside the push block 202. The first sliding column 202e-1 at the top of the moving rod 202e is in the internal position of the inclined groove 202a. When the push block 202 is squeezed downward by the screw sleeve 201, the first sliding column 202e-1 moves from the position of the lower inclined mouth to the position of the upper inclined mouth in the inclined groove 202a, and the moving rod 202e moves from the right side to the left side inside the accommodating groove 101c.

[0045] The moving rod 202e is movably arranged on the inner wall of the accommodating groove 101c, and a push rod 202f is arranged on the outer wall of the moving rod 202e. The end of the push rod 202f extends to the outside of the movable groove 101d and is provided with a push ring 202g. The end face of the push ring 202g is provided with a second fixing ring 202g-1, and a sealing ring 202h is fixed on the inner wall of the second fixing ring 202g-1. The other end of the sealing ring 202h is fixed to the inner wall of the first fixing ring 101b.

[0046] Among them, the moving rod 202e can only slide left and right inside the accommodating groove 101c, and the push rod 202f on the outer wall of the moving rod 202e moves to the left together with the moving rod 202e. The end of the push rod 202f extends out from the accommodating groove 101c, and a push ring 202g is fixed in the internal cavity of the shell 101. A second fixing ring 202g-1 is fixed at the outer ring position of the push ring 202g. The second fixing ring 202g-1 is the same as the first fixing ring 101b, and one end of the sealing ring 202h is fixed in the middle of the two. The first fixing ring 101b is fixed to the inner wall position of the cavity of the shell 101, and the second fixing ring 202g-1 is fixed to the outer side of the push ring 202g and can move with the push ring 202g. When the push ring 202g is driven to move by the push rod 202f, the sealing ring 202h is deformed, and the sealing ring 202h becomes narrow and long, and the middle part fits the outer wall of the steam pipe Z.

[0047] A second slide column 203a is arranged on the outer wall of the moving block 203, and the end of the second slide column 203a extends to the inner wall of the slide groove 202c and slides with it. A support foot 203b is arranged on the end of the moving block 203, and a groove 203c is opened on the outer wall of the support foot 203b, and a limiting groove 203d is opened at the end of the groove 203c.

[0048] Among them, the second sliding column 203a at the top of the moving block 203 slides in the sliding groove 202c at the bottom of the pushing block 202, and the moving block 203 moves downward together with the pushing block 202. The support leg 203b at the bottom will contact the outer wall of the steam pipe Z, and the shell 101 is fixed to the outside of the steam pipe Z through the support leg 203b.

[0049] Preferably, a limit block 204a is provided on the outer wall of the fixed block 204, the outer wall of the fixed block 204 extends to the inner wall of the groove 203c and slidably cooperates therewith, the limit block 204a slidably cooperates with the limit groove 203d, and a connecting block 204b is provided at the end of the fixed block 204, and the connecting block 204b is screwed to the inner wall of the shell 101.

[0050] Among them, the fixed block 204 is fixed in the accommodating groove 101c at the end of the shell 101 through the connecting block 204b at the bottom, and the limiting blocks 204a are fixed on the outer walls on both sides of the fixed block 204. The limiting blocks 204a are obliquely fixed on both sides of the fixed block 204. The fixed block 204 slides with the groove 203c, and at the same time, the limiting block 204a on the outside of the fixed block 204 slides in the limiting groove 203d opened above the groove 203c.

[0051] The moving block 203 slides on both sides above the fixed block 204 through the limiting grooves 203d opened at the bottom. When the push block 202 drives the moving block 203 to move downward, the moving block 203 slides downward on the fixed block 204 and to both sides through the limiting grooves 203d at the bottom of the moving block 203, and is finally fixed on the outside of the steam pipe Z.

[0052] In summary, when in use, the screw sleeve 201 rotates outside the housing 101, and the screw sleeve 201 moves toward the rear of the housing 101 outside the housing 101 through the cooperation between the screw thread and the screw groove 101a. When the screw sleeve 201 moves, the slope 201a at the bottom of the screw sleeve 201 contacts the inclined surface at the top of the push block 202, squeezing the push block 202, so that the push block 202 moves downward inside the receiving groove 101c. When the push block 202 moves downward, the moving rod 202 on the outer wall of the push block 202 e moves to the left in the movable groove 101d, and the moving block 203 under the push block 202 moves downward together. Since the fixed block 204 is fixed at the bottom of the accommodating groove 101c, and the fixed block 204 and the moving block 203 cooperate with each other, the moving block 203 is affected by the limit blocks 204a on both sides of the fixed block 204 when moving downward. When the moving block 203 moves downward, the support legs 203b at the bottom move to both sides at the same time, and finally the support legs 203b are fixed on the surface of the steam pipe Z.

[0053] When the moving rod 202e on the outer wall of the push block 202 moves to the left, the push rod 202f on the outer wall of the moving rod 202e moves to the left inside the movable groove 101d, and at the same time drives the push ring 202g fixed on the top of the push rod 202f to move to the left in the cavity inside the shell 101, and drives the sealing ring 202h to move from flat to narrow and long through the push ring 202g, and the sealing ring 202h is deformed, such as Figure 5 As shown, the middle position of the sealing ring 202h is attached to the inner wall of the steam pipe Z to perform sealing.

[0054] Example 3

[0055] Reference Figure 2 and Figure 3 , which is the third embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0056] Specifically, the cylinder 205 is fixed to the outer wall of the housing 101, a push plate 205a is provided on the outer wall of the cylinder 205, a connecting rod 205b is provided on the outer wall array of the pushing plate 205a, and a pressing ring 205c is provided on the other end of the connecting rod 205b.

[0057] Among them, the cylinder 205 is arranged on the outside of the shell 101, the pushing column of the axis of the cylinder 205 extends into the inner wall of the shell 101, and a push plate 205a is arranged at the end. The push plate 205a is driven by the cylinder 205 to move, and the cylinder 205 and the pushing column are sealed to avoid the installation position of the cylinder 205 not being properly sealed and affecting subsequent inspections.

[0058] A plurality of connecting rods 205b are arranged in an array on the outer wall of the push plate 205a, and a pressing ring 205c is arranged at the top position of the connecting rod 205b. When the cylinder 205 moves, the connecting rod 205b drives the pressing ring 205c to the right and presses the deformed sealing ring 202h. The sealing ring 202h is pressed on the push ring 202g, and the pressed sealing ring 202h fits more closely to the outer wall of the steam pipe Z.

[0059] Preferably, the end surface of the push plate 205a is provided with a sleeve 205d, a telescopic rod 205e is movably provided in the sleeve 205d, a fixed plate 205f is provided at the other end of the telescopic rod 205e, an elastic block 205g is provided on the outer wall of the fixed plate 205f, and a second elastic member 205h is provided at the other end of the fixed plate 205f.

[0060] Among them, a sleeve 205d is set at the axis center of the push plate 205a, the telescopic rod 205e on one side of the fixed plate 205f moves in the sleeve 205d, and an elastic block 205g is fixed on the other side of the fixed plate 205f. At the same time, the second elastic member 205h is sleeved on the outside of the sleeve 205d and the telescopic rod 205e. When the cylinder 205 pushes, the elastic block 205g first hits the pipe opening of the steam pipe Z, and then the cylinder 205 continues to push. At this time, the telescopic rod 205e extends into the sleeve 205d, and the second elastic member 205h is squeezed and deformed, and at the same time, it also pushes the elastic block 205g to hit the pipe opening to close the pipe opening.

[0061] In summary, when in use, the cylinder 205 pushes the internal push plate 205a to move toward the steam pipe Z, and the elastic block 205g first contacts the pipe opening to block the pipe opening. As the cylinder 205 continues to push, the telescopic rod 205e on one side of the fixed plate 205f slides into the sleeve 205d, and at the same time the second elastic member 205h is deformed under pressure, pushing the elastic block 205g to block the pipe opening and seal the pipe opening. While the push plate 205a pushes the elastic block 205g to block, the connecting rod 205b on the push plate 205a drives the pressing ring 205c to press the deformed sealing ring 202h, pressing it against the surface of the push ring 202g, further deforming and tightly fitting against the outer wall of the steam pipe Z, cooperating with the elastic block 205g, forming a closed space in the cavity inside the shell 101, which is convenient for subsequent detection of the sealing of the welding port of the steam pipe Z.

[0062] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0063] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0064] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A steam pipe welding port sealing detection device, characterized in that: include, A shell detection assembly (100) comprises a shell (101), a pressure pipe (102) arranged on the outer wall of the shell (101), and a pressure gauge (103) arranged on the outer wall of the pressure pipe (102); and, The sealing assembly (200) comprises a screw sleeve (201), a push block (202) arranged on the inner wall of the housing (101), a moving block (203) arranged at the end of the push block (202), a fixed block (204) arranged at the end of the moving block (203), and a cylinder (205) arranged on the outer wall of the housing (101).

2. The steam pipe welding joint sealing detection device according to claim 1, characterized in that: The outer wall of the shell (101) is provided with a threaded groove (101a), the inner wall of the shell (101) is provided with a first fixing ring (101b), the outer wall of the shell (101) is provided with a receiving groove (101c), and the outer wall of the receiving groove (101c) is provided with a movable groove (101d).

3. The steam pipe welding joint sealing detection device according to claim 2, characterized in that: The screw sleeve (201) is sleeved on the outer wall of the shell (101), and a slope (201a) is arranged at the end of the screw sleeve (201). The push block (202) is movably arranged on the inner wall of the accommodating groove (101c), and an inclined groove (202a) is provided on the end surface of the push block (202). A moving groove (202b) is provided on the end of the push block (202), and a sliding groove (202c) is provided on the end surface of the moving groove (202b). A first elastic member (202d) is provided at the end of the push block (202).

4. The steam pipe welding joint sealing detection device according to claim 3, characterized in that: The outer wall of the push block (202) is provided with a moving rod (202e), and the end of the moving rod (202e) is provided with a first sliding column (202e-1). The first sliding column (202e-1) is movably arranged inside the inclined groove (202a) and slidably cooperates with the inclined groove (202a).

5. The steam pipe welding joint sealing detection device according to claim 4, characterized in that: The moving rod (202e) is movably arranged on the inner wall of the accommodating groove (101c), and a push rod (202f) is arranged on the outer wall of the moving rod (202e). The end of the push rod (202f) extends to the outside of the movable groove (101d) and is provided with a push ring (202g). The end face of the push ring (202g) is provided with a second fixing ring (202g-1), and a sealing ring (202h) is fixed on the inner wall of the second fixing ring (202g-1), and the other end of the sealing ring (202h) is fixed to the inner wall of the first fixing ring (101b).

6. The steam pipe welding joint sealing detection device according to claim 5, characterized in that: The outer wall of the moving block (203) is provided with a second sliding column (203a), the end of the second sliding column (203a) extends to the inner wall of the sliding groove (202c) and slides therewith, the end of the moving block (203) is provided with a support foot (203b), the outer wall of the support foot (203b) is provided with a groove (203c), and the end of the groove (203c) is provided with a limiting groove (203d).

7. The steam pipe welding joint sealing detection device according to claim 6, characterized in that: A limit block (204a) is provided on the outer wall of the fixing block (204), and the outer wall of the fixing block (204) extends to the inner wall of the groove (203c) and slidably cooperates therewith.

8. The steam pipe welding joint sealing detection device according to claim 7, characterized in that: The limiting block (204a) is slidably matched with the limiting groove (203d); a connecting block (204b) is provided at the end of the fixing block (204); and the connecting block (204b) is screwed to the inner wall of the shell (101).

9. The steam pipe welding joint sealing detection device according to claim 8, characterized in that: The cylinder (205) is fixed to the outer wall of the shell (101), the outer wall of the cylinder (205) is provided with a push plate (205a), the outer wall array of the push plate (205a) is provided with a connecting rod (205b), and the other end of the connecting rod (205b) is provided with a pressing ring (205c).

10. The steam pipe welding joint sealing detection device according to claim 9, characterized in that: The end surface of the push plate (205a) is provided with a sleeve (205d), a telescopic rod (205e) is movably provided in the sleeve (205d), a fixing plate (205f) is provided at the other end of the telescopic rod (205e), an elastic block (205g) is provided on the outer wall of the fixing plate (205f), and a second elastic member (205h) is provided at the other end of the fixing plate (205f).

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