CN214251431U - Tank car is with bottom valve disk seat leak testing frock - Google Patents
Tank car is with bottom valve disk seat leak testing frock Download PDFInfo
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- CN214251431U CN214251431U CN202120474642.0U CN202120474642U CN214251431U CN 214251431 U CN214251431 U CN 214251431U CN 202120474642 U CN202120474642 U CN 202120474642U CN 214251431 U CN214251431 U CN 214251431U
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Abstract
The utility model provides a tank car is with bottom valve disk seat leak test frock, pressurization container subassembly one side is connected at the bottom valve mounting bracket back and pressurization container subassembly one side is used for connecting the jar of holding end of being surveyed the bottom valve, and the bottom valve mounting bracket openly is used for connecting the bottom valve of being surveyed, and the bottom valve mounting bracket openly still is equipped with the reducing connection pad that is used for the transition installation of not unidimensional bottom valve, and the pressure sensing element that contains in the pressurization container subassembly is connected with data monitoring processing system. Has the advantages that: the device has the advantages of strong universality, complete functions, convenience in installation and high measurement precision.
Description
Technical Field
The invention relates to a bottom valve seat leakage test tool for a tank truck, which has the advantages of strong universality, convenient installation and high measurement precision, the designed test tool can meet the requirements of valve seat installation with different specifications and appearance structure characteristics through a reducing connecting disc, the designed leakage detection mode of a transparent measuring tube with scales and the application of a pressure sensing and data monitoring processing system can meet the requirements of valve seat leakage measurement on convenient observation and accurate measurement.
Background
The liquid dangerous cargo tank car road transportation process blasting accident happens occasionally, has exposed the potential safety hazard of liquid dangerous cargo tank car, and the reason is mainly for not installing the bottom valve additional or the bottom valve that installs additional takes place a large amount of leakages, leads to dangerous liquid to leak and explodes.
The tank car bottom valve is a valve that can be quickly closed manually or automatically in an emergency to prevent dangerous liquid leakage due to tank car tipping. The quality performance is one of the key factors which directly influence the whole vehicle quality and the functional safety of the tank truck, and is also one of the main factors which influence the road transportation safety of the liquid dangerous goods.
Because the bottom valve structure is special, requires high to the test fixture, and conventional industrial valve pressure test device etc. can't satisfy bottom valve installation and test requirement. At present, the current automobile-used bottom valve disk seat leak test frock of tank mostly only is a C type jar of no additional element, equipment is too crude, degree of automation is low, measurement accuracy is low, function and test product specification are single, the operation process is loaded down with trivial details and not standard, installation and leakage result judge consuming time during the product test, inefficiency and whole with high costs, can 'T satisfy QC/T932, the bottom valve disk seat leak testing requirement of standards regulation such as BS EN 13317, and let out the volume of leaking and measure and can' T carry out accurate measurement, be unfavorable for promoting product security performance and quality, be unfavorable for effectively reducing the potential safety hazard risk that this product is used for in the hazardous liquid cargo transportation.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a bottom valve seat leakage test tool for tank cars, which has the advantages of strong universality, convenience in installation and high measurement precision, can meet the requirements of valve seat installation with different specifications and appearance structural characteristics through the application of a reducing connecting disc, can meet the requirements of valve seat leakage measurement and is convenient to observe and accurately measure through the application of a leakage detection mode of a designed transparent measuring tube with scales and a pressure sensing and data monitoring processing system.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a tank car is with bottom valve disk seat leak test frock, it includes the pressurization container subassembly, the bottom valve mounting bracket, reducing connection pad and data monitoring processing system, pressurization container subassembly one side is connected and is used for connecting the jar end of being surveyed the bottom valve at the bottom valve mounting bracket back and pressurization container subassembly one side, the bottom valve mounting bracket openly is used for connecting being surveyed the bottom valve, the bottom valve mounting bracket openly still is equipped with the reducing connection pad that is used for the transition installation of unidimensional bottom valve, pressure sensor in the pressurization container subassembly is connected with data monitoring processing system's PLC.
Furthermore, the mounting surfaces of the reducing connecting disc, the tested bottom valve and the bottom valve mounting frame are sealed by O-shaped rings, and the mounting surfaces of the pressurizing container assembly and the bottom valve mounting frame are sealed by O-shaped rings.
Furthermore, the pressurized container assembly comprises a pressurized container tank, a water injection ball valve, a pressure gauge, a gas pressure regulating valve, a gas injection ball valve, an exhaust ball valve, a transparent measuring pipe with scales, a pressure sensor and a drainage ball valve; the pressure measuring device comprises a pressure vessel, a pressure sensor, a gas pressure regulating valve, a gas injection ball valve, an exhaust ball valve and a transparent measuring tube with scales, wherein the tank connecting end of a measured bottom valve is arranged in the pressure vessel, one side of the pressure vessel is arranged on the back of a bottom valve mounting frame, the upper part of the other side of the pressure vessel is provided with the water injection ball valve, a gas source is connected between the water injection ball valve of the pressure vessel and one side of the pressure vessel through a pipeline, the pipeline is respectively connected with the pressure gauge, the gas pressure regulating valve, the gas injection ball valve, the exhaust ball valve and the transparent measuring tube with scales from the gas source to the pressure vessel, and the pressure sensor is arranged between the pipeline and one side of the pressure vessel; another pressure gauge is arranged between the pressure sensor and one side of the pressurized container tank; the lower part of the pressurizing container tank is provided with a drainage ball valve, and the pressure sensor is connected with a PLC in the data monitoring and processing system and transmits pressure signals to the data monitoring and processing system.
Further, the air source is a nitrogen cylinder or a small-sized air compressor and is used for injecting air into the pressurizing container tank during the valve seat leakage test of the tested bottom valve.
Furthermore, the data monitoring and processing system comprises a PLC and a computer and is used for collecting and processing pressure data of the test medium in the device in real time, displaying and storing dynamic characteristic curves.
Furthermore, a wing-shaped reinforcing rib is arranged at the lower end of the bottom valve mounting frame, and an L notch used for ensuring that the loading test connecting pipe can freely move vertically and upwards is reserved on the wing-shaped reinforcing rib on the front face of the bottom valve mounting frame.
Furthermore, the reducing connecting disc is arranged between the front surface of the bottom valve mounting frame and the measured bottom valve.
Furthermore, the mounting surfaces at two ends of the reducing connecting disc are provided with O-shaped ring grooves.
The invention has the beneficial effects that: (1) the testing tool has strong universality and convenient installation, and can meet the test requirements of leakage measurement and embedded installation of built-in bottom valve seats with different specifications and appearance structure characteristics through the application of the reducing connecting disc, so that the detection efficiency is greatly improved; the mounting surfaces at the two ends of the reducing connecting disc are provided with O-shaped ring groove seals, so that the mounting and positioning are avoided when a sealing gasket is adopted, and the sealing gasket is easy to damage;
(2) the device has complete functions, high precision, intuitive and convenient judgment of detection results and high efficiency, the designed pressurizing container assembly has the functions of injecting water, injecting gas, exhausting, draining and removing dirt and the like for the pressurizing container tank, two measurement modes of 'gas pushing water and pressurizing (the test medium is water)' and gas pressurizing (the test medium is gas) can be realized, the mode of injecting gas and pressurizing after the pressurizing container tank is filled with water is controlled by using a valve of the pressurizing container assembly, the test pressure is easy to adjust and is more stable, and the precision is high; when the test medium is water, the valve seat sealing leakage condition can be visually judged by observing the water level change in the transparent measuring tube with the scales, so that the problem that the valve seat leakage rate is difficult to accurately measure is solved; when the test medium is gas, the valve seat sealing leakage condition can be judged by observing the real-time pressure data change and curve judgment result condition transmitted to a computer by a pressure sensor through a PLC.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The gas source is 1, the pressure container component is 2, the pressure container tank is 2.1, the water injection ball valve is 2.2, the gas injection ball valve is 2.5, the exhaust ball valve is 2.6, the pressure gauge is (2.3, 2.9), the gas pressure regulating valve is 2.4, the transparent measuring tube with scales is 2.7, the pressure sensor is 2.8, the drain ball valve is 2.10, the bottom valve mounting bracket is 3, the reducing connecting disc is 4, the O-shaped ring is R, the measured bottom valve is 5, the PLC is 6, and the computer is 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
A bottom valve seat leakage test tool for a tank car is characterized in that the mounting surfaces of a reducing connecting disc 4, a tested bottom valve 5 and a bottom valve mounting frame 3 are sealed by O-shaped rings R, and the mounting surfaces of a pressurizing container assembly 2 and the bottom valve mounting frame 3 are sealed by the O-shaped rings R. The problem that the O-shaped ring needs to be positioned and replaced inconveniently during installation and leakage is easy to occur under pipeline load is effectively solved.
A bottom valve seat leakage test tool for a tank car is disclosed, wherein a pressurizing container assembly comprises a pressurizing container tank 2.1, a water injection ball valve 2.2, a pressure gauge 2.3, a gas pressure regulating valve 2.4, a gas injection ball valve 2.5, an exhaust ball valve 2.6, a transparent measuring pipe with scales 2.7, a pressure sensor 2.8 and a drainage ball valve 2.10; the pot end of the measured bottom valve 5 is put into the pressurized container pot 2.1, one side of the pressurized container pot 2.1 is installed on the back of the bottom valve mounting bracket 3, the water injection ball valve 2.2 is arranged on the upper part of the other side of the pressurized container pot 2.1, the gas source 1 is connected between the water injection ball valve of the pressurized container pot 2.1 and one side of the pressurized container pot through a pipeline, a pressure gauge 2.3, a gas pressure regulating valve 2.4, a gas injection ball valve 2.5, an exhaust ball valve 2.6 and a transparent measuring pipe 2.7 with scales are respectively connected from the gas source to the pressurized container pot on the pipeline, and a pressure sensor 2.8 is arranged between the pipeline and one side of the pressurized container pot; another pressure gauge 2.9 is arranged between the pressure sensor and one side of the pressure container tank; the lower part of the pressure container tank is provided with a drain ball valve 2.10, and the pressure sensor is connected with a PLC6 in the data monitoring and processing system and transmits pressure signals to the data monitoring and processing system. The gas injection ball valve is an injection/exhaust ball valve; the exhaust ball valve is an injection/exhaust ball valve.
A gas source 1 is a nitrogen cylinder or a small-sized air compressor and is used for injecting gas into a pressurization container tank during the valve seat leakage test of a tested bottom valve.
A bottom valve seat leakage test tool for a tank car is characterized in that a data monitoring and processing system comprises a PLC6 and a computer 7 and is used for real-time acquisition and processing of test medium pressure data in the device, and display and storage of dynamic characteristic curves. The computer 7 is a valve seat leakage data processing computer PC or a touch screen 7.
The utility model provides a bottom valve disk seat leak test frock for tank car, is equipped with wing strengthening rib on the bottom valve mounting bracket lower extreme, and wing strengthening rib on the bottom valve mounting bracket front leaves the L breach L that is used for guaranteeing that the test connecting pipe of carrying out the load can freely move up perpendicularly.
A bottom valve seat leakage test tool for a tank car is characterized in that a reducing connecting disc is installed between the front face of a bottom valve mounting frame and a tested bottom valve.
A bottom valve seat leakage test tool for a tank car is characterized in that O-shaped ring grooves are formed in mounting surfaces at two ends of a reducing connecting disc.
The utility model provides a bottom valve disk seat leak testing frock for tank car, bottom valve testing frock installation is surveyed the bottom valve when being used for the test, and it includes pressurization container subassembly, bottom valve mounting bracket and reducing connection pad, and during the pressurization container subassembly was packed into to the jar end of surveying the bottom valve, bottom valve mounting bracket one side was equipped with the pressurization container subassembly, and bottom valve mounting bracket opposite side was equipped with surveyed the bottom valve, was equipped with the reducing connection pad that is used for the transition installation of not unidimensional bottom valve between survey bottom valve and the bottom valve mounting bracket.
The utility model provides a tank car is with bottom valve disk seat leak testing frock, includes two detection return circuits of disk seat leakage rate test "air pushes away water pressurization" and "air pressurization".
A bottom valve seat leakage test tool for a tank car is characterized in that a valve seat leakage rate test air-pushing water pressurization detection loop consists of an air source 1, a pressurization container assembly 2, a bottom valve mounting frame 3, a reducing connecting disc 4, a tested bottom valve 5 and a data monitoring and processing system; during testing, a measured bottom valve 5 is transitionally installed on a bottom valve installation frame 3 through a reducing connection disc 4, water injection is started, a water injection ball valve 2.2, a gas injection ball valve 2.5 and a gas exhaust ball valve 2.6 need to be opened, a water discharge ball valve 2.10 and a gas pressure regulating valve 4.1.4 need to be closed, when the water in a pressurizing container tank 2.1 is full of about 2/3 scales of a transparent measuring pipe 2.7 with scales, the gas injection pressurizing process is switched to, namely the water injection ball valve 2.2 and the gas injection ball valve 2.5 need to be closed, the gas pressure regulating valve 2.4 and the gas exhaust ball valve 2.6 are opened, gas is injected and pressurized to the pressurizing container tank 2.1 from a gas source 1, the gas pressure regulating valve 2.4 is slowly regulated and pressurized to a specified test pressure, after the pressure is stabilized and maintained for a certain time, the gas pressure regulating valve 2.4 and the gas exhaust ball valve 2.6 are closed, and then the valve seat leakage of the measured bottom.
The detection loop of the valve seat leakage rate test 'gas pressurization' consists of a gas source 1, a pressurization container assembly 2, a bottom valve mounting frame 3, a reducing connecting disc 4, a tested bottom valve 5 and a data monitoring and processing system; during testing, a tested bottom valve 5 is transitionally installed on a bottom valve installation frame 3 through a reducing connection disc 4, gas injection pressurization is started, a drainage ball valve 2.10 is firstly opened to drain water in a pressurization container tank 2.1 and then closed, a water injection ball valve 2.2 and a gas injection ball valve 2.5 are closed, a gas exhaust ball valve 2.6 and a gas pressure regulating valve 2.4 are opened, gas is injected and pressurized from a gas source 1 to the pressurization container tank 2.1, after pressure is stable and maintained for a certain time, the gas pressure regulating valve 2.4 and the gas exhaust ball valve 2.6 are closed, and then real-time pressure change data and curves transmitted to a valve seat leakage data processing computer PC or a touch screen through a pressure sensor 2.8 are used for judging the valve seat leakage amount of the tested bottom valve through a PLC 6.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a tank car is with bottom valve disk seat leak test frock, it includes pressurization container subassembly, bottom valve mounting bracket, reducing connection pad and data monitoring processing system, its characterized in that: the pressure sensor in the pressure container assembly is connected with the PLC of the data monitoring and processing system.
2. The bottom valve seat leakage testing tool for the tank car as claimed in claim 1, wherein: the mounting surfaces of the reducing connecting disc, the tested bottom valve and the bottom valve mounting frame are sealed by O-shaped rings, and the mounting surfaces of the pressurizing container assembly and the bottom valve mounting frame are sealed by O-shaped rings.
3. The bottom valve seat leakage testing tool for the tank car as claimed in claim 2, wherein: the pressurizing container assembly comprises a pressurizing container tank, a water injection ball valve, a pressure gauge, a gas pressure regulating valve, a gas injection ball valve, an exhaust ball valve, a transparent measuring pipe with scales, a pressure sensor and a drainage ball valve; the pressure measuring device comprises a pressure vessel, a pressure sensor, a gas pressure regulating valve, a gas injection ball valve, an exhaust ball valve and a transparent measuring tube with scales, wherein the tank connecting end of a measured bottom valve is arranged in the pressure vessel, one side of the pressure vessel is arranged on the back of a bottom valve mounting frame, the upper part of the other side of the pressure vessel is provided with the water injection ball valve, a gas source is connected between the water injection ball valve of the pressure vessel and one side of the pressure vessel through a pipeline, the pipeline is respectively connected with the pressure gauge, the gas pressure regulating valve, the gas injection ball valve, the exhaust ball valve and the transparent measuring tube with scales from the gas source to the pressure vessel, and the pressure sensor is arranged between the pipeline and one side of the pressure vessel; another pressure gauge is arranged between the pressure sensor and one side of the pressurized container tank; the lower part of the pressurizing container tank is provided with a drainage ball valve, and the pressure sensor is connected with a PLC in the data monitoring and processing system and transmits pressure signals to the data monitoring and processing system.
4. The bottom valve seat leakage testing tool for the tank car as claimed in claim 2, wherein: the air source is a nitrogen cylinder or a small-sized air compressor and is used for injecting air into the pressurizing container tank during the valve seat leakage test of the tested bottom valve.
5. The bottom valve seat leakage testing tool for the tank car as claimed in claim 1, wherein: the data monitoring and processing system comprises a PLC and a computer and is used for collecting and processing pressure data of test media in the device in real time, displaying and storing dynamic characteristic curves.
6. The bottom valve seat leakage testing tool for the tank car as claimed in claim 1, wherein: and the lower end of the bottom valve mounting rack is provided with a wing-shaped reinforcing rib, and the wing-shaped reinforcing rib on the front surface of the bottom valve mounting rack is provided with an L notch for ensuring that the loading test connecting pipe can freely move vertically upwards.
7. The bottom valve seat leakage testing tool for the tank car as claimed in claim 1, wherein: the reducing connecting disc is arranged between the front surface of the bottom valve mounting frame and the measured bottom valve.
8. The bottom valve seat leakage testing tool for the tank car as claimed in claim 2, wherein the bottom valve seat leakage testing tool comprises: and O-shaped ring grooves are formed in the mounting surfaces at the two ends of the reducing connecting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120474642.0U CN214251431U (en) | 2021-03-05 | 2021-03-05 | Tank car is with bottom valve disk seat leak testing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120474642.0U CN214251431U (en) | 2021-03-05 | 2021-03-05 | Tank car is with bottom valve disk seat leak testing frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214251431U true CN214251431U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120474642.0U Active CN214251431U (en) | 2021-03-05 | 2021-03-05 | Tank car is with bottom valve disk seat leak testing frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214251431U (en) |
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2021
- 2021-03-05 CN CN202120474642.0U patent/CN214251431U/en active Active
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