CN216008829U - Compressed air instantaneous pressure drop system applied to welding workshop - Google Patents
Compressed air instantaneous pressure drop system applied to welding workshop Download PDFInfo
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- CN216008829U CN216008829U CN202121885283.4U CN202121885283U CN216008829U CN 216008829 U CN216008829 U CN 216008829U CN 202121885283 U CN202121885283 U CN 202121885283U CN 216008829 U CN216008829 U CN 216008829U
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- 238000003466 welding Methods 0.000 title claims abstract description 37
- 230000001052 transient effect Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 3
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- 238000003860 storage Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 7
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- 238000004134 energy conservation Methods 0.000 description 4
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Abstract
The utility model discloses a compressed air instantaneous pressure drop system applied to a welding workshop. The utility model not only solves the problem of instantaneous pressure drop of welding equipment, but also reduces the outlet pressure of the air compressor from the previous 0.85MPa to 0.70MPa, and the energy of an air compression system in a welding workshop is saved by nearly 30 percent after the frequency conversion control and the outlet pressure reduction of the air compressor.
Description
Technical Field
The utility model relates to an application technology of compressed air instantaneous pressure drop in a welding workshop of an automobile factory.
Background
In view of the difference of the requirements of the existing welding workshop on the pressure fluctuation of the compressed air, different welding production lines need to meet the flexible production of various automobile products, and certain difficulty and risk are brought to the design of a compressed air pipeline of the welding workshop. The unbalance of the action of the welding equipment causes the unbalance of the use amount of compressed air, and the short-time pressure drop causes important hidden quality troubles to the welding equipment and the welding quality, so that the problem needs to be solved urgently.
At present, the following schemes are adopted in general automobile factories:
1. increasing the outlet pressure value of the air compressor;
2. the capacity of the air compressor is increased, and the loading/unloading rate is controlled;
3. on the basis of the original design, the pipe diameter of a workshop pipeline is increased for buffering;
above traditional planning and design scheme has solved the problem that welds the instantaneous pressure of dress workshop compressed air and has reduced to a certain extent, has brought the waste of great compressed air loss and pipeline investment simultaneously, and the initial investment and the running cost of welding the dress workshop are all great.
Disclosure of Invention
The utility model aims to solve the technical problem of realizing a compressed air instantaneous pressure drop system, avoiding the deviation between a design theoretical value and actual use, saving equipment materials and avoiding the influence on welding quality due to instantaneous pressure drop.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a be applied to compressed air instantaneous pressure drop system between welding and dress, the system is equipped with the air feed and is responsible for and many air feed branch pipes, the output of air compressor machine is connected at the top that the air feed was responsible for, every the top of air feed branch pipe inserts on the air feed is responsible for, and the end inserts uses the gas point, every the new trunk line of end-to-end connection of air feed branch pipe, the one end of new trunk line is connected to the end that the air feed was responsible for.
And a newly-added gas tank is connected to the newly-added main pipeline.
The newly-added gas tank is arranged at the most unfavorable point of measurement in a welding workshop.
And a newly-increased pressure sensor is arranged in the newly-increased gas tank and is connected with a frequency converter of the air compressor through a newly-increased pressure control line.
The farthest position of the air supply branch pipe from the air compressor is communicated with the newly-added main pipeline through a newly-added branch pipeline.
The utility model not only solves the problem of instantaneous pressure drop of welding equipment, but also reduces the outlet pressure of the air compressor from the previous 0.85MPa to 0.70MPa, and the energy of an air compression system in a welding workshop is saved by nearly 30 percent after the frequency conversion control and the outlet pressure of the air compressor are reduced;
three things in reverse are achieved, and through field practical application, newly-added equipment and pipe network transformation are adopted, so that the phenomenon that local instantaneous pressure is reduced due to simultaneous action of a large number of welding equipment, the welding quality is influenced, and the loss of compressed air and operation and maintenance cost are reduced is avoided; the method realizes the concept of ring network design, achieves linkage of the gas making equipment and the tail end load, fundamentally solves the problem of local pressure loss, and further utilizes the actual requirement of the equipment on the load, thereby controlling the load of the host equipment and achieving overall energy conservation.
Drawings
The following is a brief description of the contents of each figure and the symbols in the figures in the description of the utility model:
FIG. 1 is a schematic view of a currently used compressed air piping network in a welding shop;
FIG. 2 is a schematic view of a weld shop compressed air piping network for a system for increasing the instantaneous pressure drop;
the labels in the above figures are: 1. newly adding a gas tank; 2. a pressure sensor is newly added; 3. newly adding a pressure control line; 4. newly adding a main pipeline; 5. and adding a branch pipeline.
Detailed Description
The following description of the embodiments with reference to the drawings is provided to describe the embodiments of the present invention, and the embodiments of the present invention, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
In view of the problems mentioned in the background art, the operation experience and the design experience of an automobile factory are combined, the actual load and the operation condition of a welding production line are known in a deep field, the instantaneous pressure drop of a welding workshop only exists in the full-load production (or the simultaneous action of welding equipment in a local area), the gathering area and the most unfavorable point (the farthest position from an air pressure station or the minimum position of the pipeline drift diameter) of the welding equipment are shown, and the short-time fluctuation of the local pipeline pressure is obvious, the pressure fluctuation on a main pipeline is not obvious, and the reaction of an air compressor system is delayed. Around the phenomenon and the characteristics, the research is pertinently carried out on site, the site pipeline is improved, the equipment is added, the local instantaneous pressure drop is reduced, the optimal state of the comprehensive pipe network is maintained, and the energy conservation of the system is achieved.
As shown in figure 1, in the current welding workshop compressed air pipeline network plan, a compressed air main pipeline enters a factory from the southwest side of the workshop and is arranged by adopting a radial pipeline. Due to production imbalance, a transient pressure drop is easily caused to the northeast side to the unfavorable point. In order to guarantee the welding quality of a welding workshop, the outlet pressure of the air compressor can only be set to be 0.85 MPa.
The instantaneous pressure drop system arranges a welding workshop pipe network into a ring shape, and a small ring network of the pipeline is arranged in a welding equipment dense area. So that any welder group can obtain enough compressed air flow from two pipelines. And add a trunk pipe on local pipe network, communicate both sides pipeline for the equipment wherever can both evenly obtain stable compressed air. And simultaneously measuring the pressure value of the worst point of the workshop pipe network. And a compressed air storage tank is additionally arranged at the most unfavorable point, and the compressed air storage tank has the functions of air storage and pressure stabilization. The pressure value of the storage tank of the air storage tank is directly transmitted to an air compressor in the air compression station, and the frequency change and loading and unloading of the air compressor are controlled by the pressure of the least pressure through the intercommunication of the frequency converter of the air compressor and the pressure of the least pressure, so that the aim of energy conservation is fulfilled.
Specifically, as shown in fig. 2, a newly added main pipeline 4 and a newly added branch pipeline 5 are arranged on an original pipeline system, a workshop forms a compressed air annular network, the pressure and flow balance of the compressed air pipeline of the workshop is ensured, and the whole pipeline forms a buffer and closed loop. When the welding equipment works continuously or a plurality of groups of welding equipment works continuously, the compressed air flow can be transmitted in time by utilizing the annular pipeline, and the pressure of a pipe network is ensured.
In addition, in order to ensure the pressure drop risk caused by the simultaneous action of the on-way loss and the pressure loss of the pipeline and the welding equipment at the most unfavorable point, a compressed air tank is additionally arranged at the most unfavorable point, and the compressed air can be stored by utilizing the air storage tank, and the pressure stabilizing effect is achieved. On the basis, a pressure sensor 2 is continuously added on the air storage tank, pressure fluctuation at the most unfavorable point is monitored in real time, the real-time pressure fluctuation is transmitted to a frequency converter of the air compressor through a newly added pressure control line 3, and the frequency of the frequency converter is controlled by the pressure of the air storage tank, so that the air production quantity of the air compressor is effectively controlled, and the loading/unloading frequency of the air compressor is reduced.
The specific modification steps are as follows:
1. a compressed air main pipeline is newly added, so that a looped network pipeline is formed in a workshop;
2. additionally arranging a branch pipeline at the pipeline farthest from the outlet of the air compressor;
3. measuring the least unfavorable point of a workshop pipe network, and adding a gas tank 1 at the least unfavorable point;
4. adding a pressure sensor on the newly added air storage tank;
5. and a pressure control line 3 is newly added on the pressure sensor to communicate the pressure sensor with a frequency converter of the air compressor.
The system is simple in structure and reasonable in design, reduces the outlet pressure of the air compressor as far as possible, ensures the pressure fluctuation of the worst point, achieves the stability of the pressure of the whole compressed air pipe network, reduces the loading and unloading of the air compressor, and saves energy. The system not only has the advantage of solving the pressure fluctuation of the compressed air pipe network in the welding workshop, but also links the pressure fluctuation of the air storage tank which is the most unfavorable point with the frequency conversion regulation of the air compressor, thereby solving the problem that the traditional frequency conversion air compressor only regulates the frequency of the air compressor by outlet pressure and cannot solve the pressure fluctuation of the pipe network in the workshop. On the premise of ensuring the welding quality, the energy conservation of the compressed air pipe network is realized to the maximum extent. The newly-added gas tank 1 is convenient to install and operate, can be directly arranged at the corner of a workshop, is free from maintenance in the operation process, and is low in operation cost and small in occupied area.
The utility model has been described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the specific implementation in the above-described manner, and it is within the scope of the utility model to apply the inventive concept and solution to other applications without substantial modification.
Claims (5)
1. The utility model provides a be applied to instantaneous pressure drop system of compressed air between welding and dress, the system is equipped with the air feed and is responsible for and many air feed branch pipes, the output of air compressor machine is connected at the top that the air feed was responsible for, every the top of air feed branch pipe is inserted on the air feed is responsible for, and the end is inserted and is used gas point, its characterized in that: every the end connection newly-increased trunk line of air feed branch pipe, the one end of newly-increased trunk line is connected to the end that the air feed was responsible for.
2. The compressed air transient pressure drop system of claim 1, wherein: and a newly-added gas tank is connected to the newly-added main pipeline.
3. The compressed air transient pressure drop system of claim 2, wherein: the newly-added gas tank is arranged at the most unfavorable point of measurement in a welding workshop.
4. The compressed air transient pressure drop system of claim 3, wherein: and a newly-increased pressure sensor is arranged in the newly-increased gas tank and is connected with a frequency converter of the air compressor through a newly-increased pressure control line.
5. The compressed air transient pressure drop system of claim 1, 2, 3 or 4, wherein: the farthest position of the air supply branch pipe from the air compressor is communicated with the newly-added main pipeline through a newly-added branch pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121885283.4U CN216008829U (en) | 2021-08-12 | 2021-08-12 | Compressed air instantaneous pressure drop system applied to welding workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121885283.4U CN216008829U (en) | 2021-08-12 | 2021-08-12 | Compressed air instantaneous pressure drop system applied to welding workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008829U true CN216008829U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121885283.4U Active CN216008829U (en) | 2021-08-12 | 2021-08-12 | Compressed air instantaneous pressure drop system applied to welding workshop |
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| CN (1) | CN216008829U (en) |
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2021
- 2021-08-12 CN CN202121885283.4U patent/CN216008829U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240509 Address after: 241000 No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, China Patentee after: CHERY AUTOMOBILE Co.,Ltd. Country or region after: China Address before: 241000 Building 8, science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee before: Chery Commercial Vehicles (Anhui) Co., Ltd. Country or region before: China |