CN216955046U - Utilize pressure differential device to detect frock of pipe fitting gas tightness - Google Patents
Utilize pressure differential device to detect frock of pipe fitting gas tightness Download PDFInfo
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- CN216955046U CN216955046U CN202123438450.3U CN202123438450U CN216955046U CN 216955046 U CN216955046 U CN 216955046U CN 202123438450 U CN202123438450 U CN 202123438450U CN 216955046 U CN216955046 U CN 216955046U
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Abstract
The utility model provides a tool for detecting the air tightness of a pipe fitting by using a pressure difference device, which comprises: the bottom of the detection box is provided with a cushion layer, and the top of the detection box is provided with an opening and closing type sash door; a first differential pressure sensor is arranged on the opening-closing type leaf door; two side wall bodies of the detection box are respectively provided with two interfaces, wherein one interface is provided with a ventilation interface; the data processing device is respectively connected with the first differential pressure sensors; the inlet pipeline moving device comprises a base, a sliding table, a supporting frame and a moving assembly; a sliding table is connected to the base in a sliding manner and is provided with a supporting frame; the moving assembly pushes the sliding table to move towards the ventilation pipeline, and the support frame is provided with a splicing pipe which is used for connecting the ventilation interface; the back of the inserting pipe is connected with an air injection assembly. The utility model realizes the detection of the large-scale pipeline by arranging the detection box.
Description
Technical Field
The utility model relates to the technical field of air tightness detection equipment, in particular to the technical field of a tool for detecting air tightness of a pipe fitting by using a pressure difference device.
Background
In the existing industrial environment, a large-scale mechanical device needs to be provided with a large-scale pipeline system and is used for multiple purposes such as exhaust and the like; for example, a large automobile exhaust system, for collecting and discharging fly-ups, generally comprises an exhaust manifold, an exhaust pipe, an aftertreatment, etc.; the differential pressure pipe is used for connecting the particle catcher; and because the needs of setting up the environment need bend its operation such as many times, and at the in-process of bending, lead to the inner wall of pipe fitting to contract even the pipe fitting is local to become flat easily, lead to the pressure differential pipe to appear breaking, and at the in-process of welding the mounting panel, because of local temperature is higher, lead to the uneven shrinkage cavity that appears of pipe wall thermal expansion shrink easily.
Therefore, a large amount of requirements for air tightness detection of large pipelines exist, the existing air tightness detection equipment does not consider the requirement for hoisting of large pipelines, the pipelines are generally arranged only by means of boosting and the like, air tightness detection of the pipelines is generally completed by means of punching on the pipelines, and secondary damage is easily caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: to prior art's defect, provide a frock that utilizes pressure differential device to detect pipe fitting gas tightness, solve the problem that is difficult to install large-scale pipeline and avoid destroying the pipeline surface and carry out airtight detection.
The utility model adopts the following technical scheme for solving the technical problems:
the utility model provides a tool for detecting the air tightness of a pipe fitting by using a pressure difference device, which comprises:
the bottom of the detection box is provided with a cushion layer, and the top of the detection box is provided with an opening and closing type sash door; a first differential pressure sensor is arranged on the opening and closing type leaf door; two side wall bodies of the detection box are respectively provided with two interfaces, wherein one interface is provided with a ventilation interface;
the data processing devices are respectively connected with the first differential pressure sensors;
the inlet pipeline moving device comprises a base, a sliding table, a supporting frame and a moving assembly; the base is connected with the sliding table in a sliding manner, and the supporting frame is arranged on the sliding table; the moving assembly pushes the sliding table to move towards the ventilation pipeline, and the support frame is provided with an inserting pipe which is used for connecting the ventilation interface; and an air injection assembly is connected behind the insertion pipe.
Preferably, on the tool for detecting the air tightness of the pipe fitting by using the pressure difference device, the air injection component is a blower, and the blower is arranged at one end, back to the detection box, of the insertion pipe.
Preferably, on the frock of utilizing pressure differential device to detect pipe fitting gas tightness, include: the shunt assembly is arranged in the plug pipe; the flow dividing assembly is of a cylindrical structure; the two ends of the cylindrical structure are respectively provided with a first fixing plate and a second fixing plate; a plurality of through holes in a circumferential array are formed in the first fixing plate, and a plurality of push rod assemblies in a circumferential array are arranged on the second fixing plate; the push rod assemblies are equal to the through holes in number and correspond to the through holes one by one; the cavity of the cylindrical structure is connected to the cavity between the second fixing plate and the gas injection assembly by arranging a side branch.
Preferably, on the tooling for detecting the air tightness of the pipe fitting by using the differential pressure device, a temperature control assembly is arranged in the detection box and comprises a digital thermometer, a heater and a refrigerator.
Preferably, on the tooling for detecting the air tightness of the pipe fitting by using the differential pressure device, one end, close to the detection box, of the insertion pipe is provided with a conical interface.
Preferably, on the frock of utilizing pressure differential device to detect pipe fitting gas tightness, still include: the second differential pressure sensor is arranged at the interface back to the ventilation interface and is connected with the data processing device.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
the detection box is arranged to realize the detection of the large-scale pipeline; in addition, the opening and closing type door is arranged on the detection box, and the large pipeline can be conveniently and directly hoisted into the detection box when the opening and closing type door is opened; in addition, a first differential pressure sensor is arranged on the opening and closing type door, so that the change of the pressure in the detection box 1 can be detected under the condition that the opening and closing type door is closed, and whether the large pipeline leaks air or not can be determined; in addition, the interference of the external environment to the first differential pressure sensor can be reduced through the data processing device.
Drawings
FIG. 1 is a cross-sectional view of a tool for detecting the air tightness of a pipe fitting by using a differential pressure device according to the present invention;
FIG. 2 is an enlarged view of A in the tool for detecting the air tightness of the pipe fitting by using the differential pressure device;
FIG. 3 is a schematic view of a detection box of the tool for detecting the air tightness of the pipe fitting by using a differential pressure device;
FIG. 4 is a schematic view of a flow distribution assembly of a tool for detecting the air tightness of a pipe by using a differential pressure device according to the present invention;
wherein the reference symbols are:
the device comprises a detection box 1, a cushion layer 11, a fan door 12, a first differential pressure sensor 121, a port 122, a vent port 122a, a second differential pressure sensor 122b, an inlet pipeline moving device 2, a base 21, a sliding table 22, a support frame 23, a plug pipe 231, a conical port 231, an air injection assembly 232, a moving assembly 24, a flow dividing assembly 3, a first fixing plate 31, a through hole 311, a second fixing plate 32, a push rod assembly 321 and a side branch 33.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present embodiment provides a tool for detecting air tightness of a pipe by using a differential pressure device, including:
the detection box comprises a detection box 1, wherein a cushion layer 11 is arranged at the bottom of the detection box 1, and an opening and closing type leaf door 12 is arranged at the top of the detection box 1; a first differential pressure sensor 121 is arranged on the opening and closing type door 12; two interfaces 122 are respectively arranged on two side wall bodies of the detection box 1, and a ventilation interface 122a is arranged at one interface 122;
the data processing devices are respectively connected with the first differential pressure sensors 121;
the inlet pipeline moving device 2, the inlet pipeline moving device 2 includes a base 21, a sliding table 22, a supporting frame 23 and a moving assembly 24; the base 21 is connected with a sliding table 22 in a sliding way, and the sliding table 22 is provided with a support frame 23; the moving assembly 24 pushes the sliding table 22 to move towards the ventilation port 122a, the supporting frame 23 is provided with a splicing pipe 231, and the splicing pipe 231 is used for connecting the ventilation port 122 a; an air injection assembly 232 is connected behind the insertion pipe 231.
The detection box 1 is arranged to realize the detection of the large-scale pipeline; in addition, the opening and closing type leaf door 12 is arranged on the detection box 1, and when the opening and closing type leaf door 12 is opened, a large pipeline can be directly and conveniently hoisted into the detection box 1; in addition, the first differential pressure sensor 121 is arranged on the opening and closing type door 12, so that the change of the pressure in the detection box 1 can be detected under the condition that the opening and closing type door 12 is closed, and whether the large pipeline leaks air or not can be determined; in addition, the interference of the external environment to the first differential pressure sensor 121 can be reduced by the data processing device; in addition, the inlet pipeline moving device 2 can realize the insertion and extraction of the insertion pipe 231 and the detection box 1, and the insertion pipe 231 can be conveniently replaced.
Whether the air leakage of the large-scale pipeline is detected or not is realized; specifically, a large pipeline is directly hoisted from the upper part of the detection box 1 in a hoisting mode, and traveling equipment of a factory building is fully utilized; when the large pipeline is placed in place in the detection box 1, the two ends of the large pipeline are connected to the two interfaces 122 through the replaceable interface parts respectively; the large pipeline is ventilated through the splicing pipe 231, and because the design of the pipeline generally considers the installation air pressure value, the large pipe part can be ensured not to be damaged by air inflow by detecting the air pressure in the large pipeline; therefore, when there is no leakage in the large pipe portion, the air pressure in the detection box 1 does not change, and thus, it is only necessary to detect whether the first differential pressure sensor 121 changes, and it is possible to determine whether there is leakage.
In order to insert and pull the insertion tube 231, the assembly 24 is moved at the rear side of the sliding table 22, and the push rod assembly of the moving assembly 24 is specifically a pneumatic push rod or an electric push rod, so as to realize real-time control of the sliding table 22.
In order to ventilate the ventilation interface 122a by the insertion tube 231, an air injection assembly 232 is arranged at one end of the insertion tube 231, which is opposite to the detection box 1, so that air is introduced into the insertion tube 231 and then is introduced into the large tube part to be detected; specifically, the air injection assembly 232 is a blower or a fan.
To enable further control of the flow rate of the jet assembly 232; the shunt assembly 3 is now arranged in the bayonet tube 231; when the power of the blower is kept consistent, the flow is controlled through the shunt assembly 3; specifically, as shown in fig. 4, the flow dividing assembly 3 is a cylindrical structure; the two ends of the cylindrical structure are respectively provided with a first fixing plate 31 and a second fixing plate 32; a plurality of through holes 311 in a circumferential array are arranged on the first fixing plate 31, and a plurality of push rod assemblies 321 in a circumferential array are arranged on the second fixing plate 32; the number of the push rod assemblies 321 is equal to that of the through holes 311, and the push rod assemblies correspond to the through holes 311 one by one; the cavity of the cartridge-type structure is connected to the cavity between the second fixing plate 32 and the air injection assembly 232 by providing a side branch 33. When air blown by a blower enters the insertion pipe 231, if the flow rate needs to be increased, the corresponding through hole 311 can be blocked by one or more push rod assemblies 321, so that the flow rate is increased by reducing the cross section, and the air tightness of the large pipe part under the condition of high flow rate is detected by the mode.
The temperature can generate the effect of expansion with heat and contraction with cold on the diaphragm in the differential pressure sensor; in order to reduce the change of the temperature in the detection box 1, a temperature control component is arranged in the detection box 1 and comprises a digital thermometer, a heater and a refrigerator; the temperature is ensured to be consistent with the initial temperature as much as possible, and the influence on the detection of the first differential pressure sensor 121 is avoided.
In addition, since the connection between the bayonet tube 231 and the test chamber 1 may have a certain air tightness problem, in order to improve the air tightness of the connection between the bayonet tube 231 and the test chamber 1; as shown in FIG. 2, a tapered interface 231a is now provided at the end of the bayonet tube 231 adjacent to the test cassette 1.
In order to detect the pressure change in the large pipe part and avoid the rupture and the like caused by overlarge pressure in the pipe; now a second differential pressure sensor 122b is provided, the second differential pressure tube sensor 122b being provided at the interface 122 facing away from the vent interface 122 a;
in addition, this utilize frock of pressure differential device detection pipe fitting gas tightness still includes second pressure differential sensor, and second pressure differential sensor locates the interface 1 of the interface of ventilating dorsad, and second pressure differential sensor connects data processing device.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications or alterations to this practice will occur to those skilled in the art and are intended to be within the scope of this invention. Accordingly, equivalent alterations and modifications are intended to be included within the scope of the present invention, without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides an utilize pressure differential device to detect frock of pipe fitting gas tightness which characterized in that includes:
the bottom of the detection box is provided with a cushion layer, and the top of the detection box is provided with an opening and closing type leaf door; a first differential pressure sensor is arranged on the opening and closing type door; two interfaces are respectively arranged on the wall bodies on the two sides of the detection box, and a ventilation interface is arranged at one of the interfaces;
the data processing devices are respectively connected with the first differential pressure sensors;
the inlet pipeline moving device comprises a base, a sliding table, a supporting frame and a moving assembly; the base is connected with the sliding table in a sliding manner, and the supporting frame is arranged on the sliding table; the moving assembly pushes the sliding table to move towards the ventilation pipeline, and the support frame is provided with an inserting pipe which is used for connecting the ventilation interface; and an air injection assembly is connected behind the inserting pipe.
2. The tool for detecting the airtightness of the pipe fitting by using the differential pressure device as claimed in claim 1, wherein the air injection assembly is a blower, and the blower is disposed at an end of the insertion pipe facing away from the detection box.
3. The tool for detecting the air tightness of the pipe fitting by using the differential pressure device as claimed in claim 2, comprising: the shunt assembly is arranged in the plug pipe; the flow dividing assembly is of a cylindrical structure; the two ends of the cylindrical structure are respectively provided with a first fixing plate and a second fixing plate; a plurality of through holes in a circumferential array are formed in the first fixing plate, and a plurality of push rod assemblies in a circumferential array are arranged on the second fixing plate; the push rod assemblies are equal to the through holes in number and correspond to the through holes one by one; the cavity of the cylindrical structure is connected to the cavity between the second fixing plate and the gas injection assembly by providing a side branch.
4. The tool for detecting the air tightness of the pipe fitting by using the differential pressure device as claimed in claim 1, wherein a temperature control assembly is arranged in the detection box, and the temperature control assembly comprises a digital thermometer and a heater.
5. The tool for detecting the air tightness of the pipe fitting by using the differential pressure device as claimed in claim 1, wherein a tapered interface is arranged at one end of the insertion pipe close to the detection box.
6. The tool for detecting the air tightness of the pipe fitting by using the differential pressure device as claimed in claim 1, further comprising: the second differential pressure sensor is arranged at the interface back to the ventilation interface and is connected with the data processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123438450.3U CN216955046U (en) | 2021-12-30 | 2021-12-30 | Utilize pressure differential device to detect frock of pipe fitting gas tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123438450.3U CN216955046U (en) | 2021-12-30 | 2021-12-30 | Utilize pressure differential device to detect frock of pipe fitting gas tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216955046U true CN216955046U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123438450.3U Active CN216955046U (en) | 2021-12-30 | 2021-12-30 | Utilize pressure differential device to detect frock of pipe fitting gas tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216955046U (en) |
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2021
- 2021-12-30 CN CN202123438450.3U patent/CN216955046U/en active Active
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