Air pressing equipment integrating air dryer and air compressor into skid

Abstract

The utility model relates to the technical field of air pressing equipment, in particular to air pressing equipment integrating an air dryer and an air compressor into a skid, which comprises a skid seat, an air compressor, a refrigeration type compressed air dryer, a compressed air filter, an air-water separator group and a double compressed air filter group. The utility model focuses on the innovation of the air pressing equipment, and provides the air pressing equipment which integrates the air dryer and the air compressor into the skid for solving the problems of dispersion, low efficiency, poor precision and the like of the traditional air dryer and the traditional pressing equipment. The air compressor supplies air, the refrigeration type compressed air dryer dehumidifies and then is precisely regulated and controlled through the PLC in combination with the high-precision pressure controller, and the device has the outstanding advantages of integration, high efficiency, precise pressure control, safety, reliability, wide application and the like, and can be widely applied to air pressure testing requirements of industries such as petrochemical engineering, natural gas, pressure pipelines and pressure containers.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas pressurization equipment, specifically relating to an air pressurization device that integrates an air dryer and an air compressor into a skid. Background Technology

[0002] In numerous industrial sectors, such as petrochemicals, natural gas transmission, pressure pipelines, and pressure vessel manufacturing, the demand for dry air is increasing, and the testing of the sealing and pressure-bearing capacity of gas systems is crucial. Traditionally, air dryers and air compressors are typically transported and installed separately, which not only occupies a significant amount of space but also increases the complexity of pipeline connections and the risk of leaks. Furthermore, on-site installation and commissioning consume considerable manpower and time, and the overall stability is easily affected by the installation environment, making it difficult to meet the stringent requirements of modern high-precision industrial production. The market urgently needs an integrated, efficient, accurate, and reliable gas pressure testing solution. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an air pressure testing device that integrates an air dryer and an air compressor into a skid. By integrating the air dryer and air compressor into a skid-mounted design, a compact layout, convenient installation, and efficient operation are achieved. Combined with high-precision pressure control, the accuracy and safety of gas pressure testing are comprehensively guaranteed, effectively solving many problems faced by traditional gas processing and pressure testing equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an air pressurization device that integrates an air dryer and an air compressor into a skid, including a skid base, an air compressor, a refrigerated compressed air dryer, a compressed air filter, an air-water separator assembly, and a dual compressed air filter assembly;

[0005] The air compressor's inlet is connected to a mixed air inlet pipe assembly and a filter valve assembly. The air compressor's outlet is connected to a refrigerated compressed air dryer through an air compressor outlet pipe assembly. An air compressor pressure relief valve assembly and an air compressor outlet check valve assembly are connected to the air compressor outlet pipe assembly. The outlet of the refrigerated compressed air dryer is connected to a compressed air filter through an air dryer outlet pipe assembly.

[0006] The compressed air filter has an air inlet pipe assembly connected to its air inlet end, a filter drain solenoid valve assembly at its bottom, and an air outlet end connected to an air-water separator assembly via a filter outlet pipe assembly.

[0007] The air-water separator group consists of air-water separator a and air-water separator b. The input end of air-water separator a is connected to the air-water separator a inlet pipe group and is connected to the filter outlet pipe group. The two air-water separators are connected through the air-water separator connecting pipe group. The bottom of each air-water separator is equipped with an air-water separator drain valve group. The output end of air-water separator b is connected to the dual compressed air filter group through the air-water separator b outlet pipe group.

[0008] The inlet of the dual compressed air filter group is connected to the filter inlet pipe group two, which is connected to the outlet pipe group of the air-water separator b. The dual compressed air filter group consists of two compressed air filters, which are connected by a filter connecting pipe group. Each of the two compressed air filters is equipped with a filter drain solenoid valve group two at the bottom. The air outlet of the dual compressed air filter group is connected to the filter outlet pipe group two, and the air outlet of the filter outlet pipe group two is connected to the dry air outlet pipe group. The filter outlet pipe group two is equipped with a dry air shut-off valve group.

[0009] Preferably, the skid is a rectangular frame welded steel structure with a forklift slot and shock-absorbing rubber pad at the bottom.

[0010] Preferably, a pressure controller valve group, a safety valve group, a pressure gauge valve group, and a manual pressure relief valve group are sequentially connected to the pipeline between the air compressor outlet pipe group and the refrigerated compressed air dryer inlet pipe group.

[0011] Preferably, the interior of the skid frame also integrates a PLC control cabinet and a spare parts toolbox.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Integration advantages: Integrating the air dryer and air compressor into a skid greatly reduces the floor space required, simplifies the installation process, shortens on-site commissioning time, improves the stability and reliability of the overall system, and enables rapid deployment and relocation.

[0014] 2. High-efficiency gas production and pressurization: The combination of high and low pressure piston air compressor heads provides a large flow and high pressure of pure gas, which significantly improves gas production efficiency and meets the rapid detection needs in large-scale industrial production.

[0015] 3. Precise pressure control: The PLC, together with the high-precision pressure controller and intelligent pressure control algorithm, can keep the pressure control error within a very small range, ensuring high accuracy of test results and providing a reliable basis for the safety assessment of gas systems.

[0016] 4. Safe and worry-free: Fireproof, explosion-proof, and corrosion-resistant equipment protection design, providing comprehensive protection for personnel and production safety.

[0017] 5. Wide applicability: The specially designed gas handling and pressure control system can adapt to the pressure testing needs of various gas types and pressure levels, and is widely used in many industries such as petrochemicals, natural gas, pressure pipelines, and pressure vessels. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the air pressure device of this utility model;

[0019] Figure 2 This is a schematic diagram illustrating the operating principle of the air pressure device of this utility model.

[0020] In the diagram: 1. Skid; 2. Air compressor; 201. Mixed air inlet pipe assembly; 202. Filter valve assembly; 203. Air compressor outlet pipe assembly; 204. Air compressor pressure relief valve assembly; 205. Air compressor outlet check valve assembly; 3. Refrigerated compressed air dryer; 301. Pressure controller valve assembly; 302. Safety valve assembly; 303. Pressure gauge valve assembly; 304. Manual pressure relief valve assembly; 4. Compressed air filter; 401. Filter inlet pipe assembly one; 402. Filter outlet pipe assembly one; 403. Filter drain solenoid valve Group 1; 5. Gas-water separator group; 501. Gas-water separator a inlet pipe group; 502. Gas-water separator drain valve group; 503. Gas-water separator connecting pipe group; 504. Gas-water separator b outlet pipe group; 6. Dual compressed air filter group; 601. Filter inlet pipe group two; 602. Filter connecting pipe group; 603. Filter drain solenoid valve group two; 604. Filter outlet pipe group two; 605. Dry air shut-off valve group; 606. Dry air outlet pipe group; 7. PLC control cabinet; 8. Spare parts toolbox. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0022] The following reference Figures 1-2 This application describes an embodiment of an air pressurization device that integrates an air dryer and an air compressor into a skid.

[0023] An air pressurization device that integrates an air dryer and an air compressor into a skid includes a skid 1, an air compressor 2, a refrigerated compressed air dryer 3, a compressed air filter 4, an air-water separator assembly 5, and a dual compressed air filter assembly 6.

[0024] A piston-type air compressor is selected, which has the characteristics of high efficiency and large flow rate air supply. The air inlet of the air compressor 2 is connected to the mixed air inlet pipe group 201 and the filter valve group 202. The filter valve group 202 ensures the cleanliness of the intake air. The air outlet of the air compressor 2 is connected to the refrigerated compressed air dryer 3 through the air compressor outlet pipe group 203. The air compressor outlet pipe group 203 is connected to the air compressor pressure relief valve group 204 and the air compressor outlet check valve group 205 to prevent gas backflow. The refrigerated compressed air dryer 3 adopts refrigerated drying technology, which can effectively remove most of the moisture in the compressed air. It is equipped with a condensate drainage device, which drains water automatically at timed intervals or according to the feedback of the humidity sensor to ensure continuous and stable drying effect. The air outlet of the refrigerated compressed air dryer 3 is connected to the compressed air filter 4 through the air dryer outlet pipe group. The dried gas is delivered to the compressed air filter 4.

[0025] A high-precision compressed air filter 4 is used to remove tiny solid impurities from the air and further separate liquid water and oil from the air. The air inlet end of the compressed air filter 4 is connected to a filter inlet pipe group 401. The bottom of the compressed air filter 4 is equipped with a filter drain solenoid valve group 403 for automatic drainage at timed intervals. The air outlet end of the compressed air filter 4 is connected to the air-water separator group 5 through the filter outlet pipe group 402.

[0026] The gas-water separator group 5 consists of gas-water separator a and gas-water separator b, which can further and more effectively separate water from the gas and improve the gas quality. The input end of gas-water separator a is connected to the gas-water separator a inlet pipe group 501 and the filter outlet pipe group 402. The two gas-water separators are connected through the gas-water separator connecting pipe group 503. The bottom of each of the two gas-water separators is equipped with a gas-water separator drain valve group 502 for timed automatic drainage. The output end of gas-water separator b is connected to the dual compressed air filter group 6 through the gas-water separator b outlet pipe group 504.

[0027] The inlet of the dual compressed air filter assembly 6 is connected to the filter inlet pipe assembly 601, which is connected to the outlet pipe assembly 504 of the air-water separator b. The dual compressed air filter assembly 6 consists of two compressed air filters, which are connected by a filter connecting pipe assembly 602. Each of the two compressed air filters is equipped with a filter drain solenoid valve assembly 603 at the bottom. The outlet of the dual compressed air filter assembly 6 is connected to the filter outlet pipe assembly 604, and the outlet of the filter outlet pipe assembly 604 is connected to the dry air outlet pipe assembly 606. A dry air shut-off valve assembly 605 is installed on the filter outlet pipe assembly 604.

[0028] Furthermore, the skid 1 is a rectangular frame welded steel structure with sufficient load-bearing capacity. Its bottom is equipped with a forklift slot for easy movement and shock-absorbing rubber pads to ensure the stability and convenience of the skid during transportation and installation. The bottom of the equipment is equipped with adjustable height support feet with anti-slip pads to adapt to different site environments and ensure stable placement of the equipment.

[0029] Furthermore, the pipeline between the air compressor outlet pipe assembly 203 and the air inlet pipe assembly of the refrigerated compressed air dryer 3 is also sequentially connected to a pressure controller valve assembly 301, a safety valve assembly 302, a pressure gauge valve assembly 303, and a manual pressure relief valve assembly 304. When the equipment operates abnormally and overpressures, the safety valve assembly 302 automatically releases pressure or the pressure is manually released.

[0030] In a further embodiment, the equipment casing is made of fireproof, explosion-proof, and corrosion-resistant composite material, and the interior is filled with sound-absorbing and heat-insulating materials to effectively resist possible gas explosion impacts and effectively reduce equipment operating noise.

[0031] In a further embodiment, the units are connected by high-strength, high-pressure resistant stainless steel pipes, and the pipe joints use double compression fittings with excellent sealing performance to ensure that there is no leakage during the gas transmission process.

[0032] In a further embodiment, the interior of the skid frame 1 also integrates a PLC control cabinet 7 and a spare parts toolbox 8. The PLC control cabinet 7 is based on an advanced programmable logic controller and has a built-in intelligent pressure control algorithm. Combined with a high-precision pressure controller, it accurately controls the gas flow rate entering the pressurization unit and outputting to the test object according to the preset pressure value, so as to realize the dynamic and precise adjustment of pressure during the pressurization process.

[0033] The specific working process of an air pressurization device integrating an air dryer and an air compressor into a skid, as described above, is illustrated by the following embodiments:

[0034] Equipment Assembly: First, weld and assemble the skid mount 1, and install the shock-absorbing rubber pads and forklift slots at the bottom. Next, fix the air compressor 2 in the designated position on the skid mount 1, connect the inlet filter valve assembly 202 and the air compressor outlet check valve assembly 205, ensuring a seal. Install the refrigerated compressed air dryer 3, connect its inlet and outlet pipes, and test the condensate drainage device. Then, install the PLC and control circuit board in the electrical control box, and connect all sensors, pressure controllers, and other electrical components according to the circuit diagram, ensuring the wiring connections are correct and secure. Finally, install the equipment casing and support feet, and check the overall sealing and stability of the equipment.

[0035] Operating procedures:

[0036] Before starting the equipment, the operator inputs preset pressure value, gas type, test time and other parameters through the equipment control panel according to the requirements of the test object. The PLC receives and stores this information.

[0037] When the air compressor 2 is turned on, the outside air enters the air compressor 2 after being filtered by the air filter valve group 202 and compressed. The compressed air then enters the refrigerated compressed air dryer 3 to remove moisture. The dried gas then enters the two-stage air-water separator group 5 through the compressed air filter 4, and then passes through the double compressed air filter group 6 to ensure that the air is dry and free of impurities.

[0038] Based on the real-time pressure data fed back by the pressure monitoring unit, the PLC precisely adjusts the gas flow rate output to the test object through a high-precision pressure controller component, so that the pressure steadily rises to the preset value.

[0039] During the pressurization process, the pressure monitoring unit continuously monitors the pressure at various points. Once the pressure monitoring unit detects abnormal pressure fluctuations, the operator will immediately stop the machine and investigate the cause of the malfunction.

[0040] After the test is completed, turn off air compressor 2, open the pressure relief valve of the equipment to safely release the residual gas in the pipeline, disassemble the test object connecting pipeline, and prepare for the next round of testing.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An air pressurizing apparatus in which an air dryer and an air compressor are integrated as a pry block, characterized by: Includes a skid mount (1), an air compressor (2), a refrigerated compressed air dryer (3), a compressed air filter (4), an air-water separator assembly (5), and a dual compressed air filter assembly (6); The air compressor (2) has an air inlet connected to a mixed air inlet pipe assembly (201) and a filter valve assembly (202). The air outlet of the air compressor (2) is connected to a refrigerated compressed air dryer (3) through an air compressor outlet pipe assembly (203). An air compressor pressure relief valve assembly (204) and an air compressor outlet check valve assembly (205) are connected to the air compressor outlet pipe assembly (203). The air outlet of the refrigerated compressed air dryer (3) is connected to a compressed air filter (4) through an air dryer outlet pipe assembly. The air inlet end of the compressed air filter (4) is connected to a filter inlet pipe assembly (401), the bottom of the compressed air filter (4) is provided with a filter drain solenoid valve assembly (403), and the air outlet end of the compressed air filter (4) is connected to the air-water separator assembly (5) through the filter outlet pipe assembly (402). The air-water separator group (5) consists of air-water separator a and air-water separator b. The input end of air-water separator a is connected to the air-water separator a inlet pipe group (501) and is connected to the filter outlet pipe group one (402). The two air-water separators are connected through the air-water separator connecting pipe group (503). The bottom of the two air-water separators is provided with an air-water separator drain valve group (502). The output end of air-water separator b is connected to the dual compressed air filter group (6) through the air-water separator b outlet pipe group (504). The inlet of the dual compressed air filter group (6) is connected to the filter inlet pipe group two (601), which is connected to the outlet pipe group (504) of the air-water separator b. The dual compressed air filter group (6) consists of two compressed air filters, which are connected to each other through the filter connecting pipe group (602). The bottom of each of the two compressed air filters is provided with the filter drain solenoid valve group two (603). The outlet end of the dual compressed air filter group (6) is connected to the filter outlet pipe group two (604). The outlet end of the filter outlet pipe group two (604) is connected to the dry air outlet pipe group (606). The filter outlet pipe group two (604) is provided with the dry air shut-off valve group (605).

2. The air pressurizing apparatus of claim 1, wherein: The pry bar (1) is a rectangular frame welded steel structure with a forklift slot and shock-absorbing rubber pad at the bottom.

3. The air pressurizing apparatus of claim 1, wherein: The air compressor outlet pipe assembly (203) and the air inlet pipe assembly of the refrigerated compressed air dryer (3) are connected in sequence to a pressure controller valve assembly (301), a safety valve assembly (302), a pressure gauge valve assembly (303), and a manual pressure relief valve assembly (304).

4. The air pressurizing apparatus of claim 1, wherein: The PLC control cabinet (7) and spare parts toolbox (8) are also integrated and installed inside the pry bar (1) frame.

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