A whole pry installation structure of propylene compressor
By designing an integrated skid-mounted structure for the propylene compressor, integrating multiple components to form an integrated skid, the problems of burden and start-up time delay caused by on-site installation of parts in existing technologies are solved, thereby improving space utilization and installation efficiency.
Patent Information
- Application Number
- CN202521803317.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-08-25
AI Technical Summary
The delivery of existing propylene compressor unit components to user sites for installation has increased the burden on OEMs and delayed start-up times, resulting in economic losses.
Design an integrated skid-mounted structure for a propylene compressor, integrating components such as a common base, inlet separator, dry gas sealing station, gas pipeline, inlet impeller, and compressor body to form an integrated skid-mounted structure, reducing on-site installation work.
This reduces the overall footprint of the machine, decreases on-site installation workload, shortens startup time, and reduces economic losses for users.
Smart Images

Figure CN224396781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of propylene compressor technology, and in particular to an integral skid-mounted structure for a propylene compressor. Background Technology
[0002] Propylene compressors play a crucial role in industrial production. They are primarily used to compress propylene gas to the required pressure and are widely used in chemical, petroleum, and pharmaceutical industries, serving as key equipment for gas compression and transportation in industrial production. Propylene is an important chemical raw material, mainly used in the production of polypropylene, acrylonitrile, propylene oxide, and other chemicals. Propylene is an organic compound, a colorless, odorless gas with a slightly sweet taste. It is flammable, producing a bright flame when burned. Its explosive limits in air are 2% to 11.1%. High concentrations of propylene have an anesthetic effect on humans, while lower concentrations may irritate the eyes and skin. Due to these characteristics, propylene leaks pose a significant danger to the environment. To reduce leakage in propylene compressor seals, especially under high outlet pressure conditions, dry gas seals are generally used. However, dry gas seals have a large overall control panel and involve cabling and various sealing pipe connections to the main unit. Furthermore, because propylene gas is highly liquefiable, a separator is typically installed at the compressor inlet to prevent liquid-laden gas from entering the compressor and damaging the impeller. Additionally, the compressor also includes a junction box and operating column. If the above equipment is shipped to the user's site for piping, wiring and other installation work, it will greatly increase the burden on the compressor manufacturer and delay the on-site start-up time of the compressor unit, causing certain losses to the user.
[0003] The current practice of shipping components of propylene compressor units to the user's site for installation increases the burden on the compressor manufacturer and delays the on-site start-up time of the compressor unit, causing economic losses to the user. This utility model greatly reduces the footprint of the entire unit by rationally arranging components such as the main motor, lubrication station, sealing plate station, compressor components and intake liquid separator. Summary of the Invention
[0004] The purpose of this utility model is to provide an overall skid-mounted structure for propylene compressors, which solves the problem that in the past, the various components of propylene compressor units were sent to the user's site for installation, which increased the burden on the compressor manufacturer and delayed the on-site start-up time of the compressor unit, causing economic losses to the user.
[0005] To achieve the above objectives, this utility model provides an integral skid-mounted structure for a propylene compressor, including a common base, an inlet separator, a dry gas sealing plate station, a gas pipeline, an inlet straight pipeline, an inlet impeller, a compressor body, an anti-surge bypass pipeline, and a cooling tank. The inlet separator is fixedly connected to the common base and located above it. The compressor body is fixedly connected to the common base and located on one side of it. The dry gas sealing plate station is fixedly connected to the common base and located on one side of the inlet separator. The inlet impeller is fixedly connected to the compressor body and located on one side of it. One end of the inlet straight pipeline is connected to the inlet separator, and the other end is connected to the inlet impeller. One end of the gas pipeline is connected to the dry gas sealing plate station, and the other end is connected to the compressor body.
[0006] The propylene compressor skid-mounted structure also includes an anti-surge bypass pipe and a cooling tank. The cooling tank is fixedly connected to the common base and located on one side of the compressor body. One end of the anti-surge bypass pipe is connected to the compressor body, and the other end of the anti-surge bypass pipe is connected to the cooling tank. The cooling tank is connected to the inlet liquid separator.
[0007] The propylene compressor skid-mounted structure also includes a main motor, which is located on one side of the compressor body and its output end is fixedly connected to the compressor body.
[0008] The propylene compressor skid-mounted structure also includes a circulating cooling pipe and an oil cooler. The oil cooler is fixedly connected to the common base and located on one side of the main motor. One end of the circulating cooling pipe is fixedly connected to the main motor, and the other end of the circulating cooling pipe is fixedly connected to the oil cooler.
[0009] The propylene compressor skid-mounted structure also includes an anti-surge valve and a lubrication station. The anti-surge valve is located in the middle section of the anti-surge bypass pipeline, and the lubrication station is fixedly connected to the common base and located below the compressor body.
[0010] This utility model discloses an integral skid-mounted structure for a propylene compressor. The inlet separator is fixedly connected to a common base and located above the common base. The compressor body is fixedly connected to the common base and located on one side of the common base. The dry gas sealing plate is fixedly connected to the common base and located on one side of the inlet separator. The inlet impeller is fixedly connected to the compressor body and located on one side of the compressor body. One end of the straight inlet pipe is connected to the inlet separator, and the other end of the straight inlet pipe is connected to the inlet impeller. One end of the pipeline is connected to the dry gas sealing plate station, and the other end of the gas pipeline is connected to the compressor body. Since propylene is easily liquefied, in order to prevent liquid propylene from entering the compressor body and damaging the inlet impeller, an inlet separator is designed on one side of the compressor body to separate the liquid in the propylene gas. To protect the inlet pipeline pressure from exceeding its design pressure, a safety valve is installed on the inlet separator. The inlet separator is also equipped with a level gauge, pressure transmitter, temperature sensor, etc. The inlet separator is a skirt type, and the bottom is provided with a through hole for connection with the common base by bolts. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall skid-mounted structure of the propylene compressor of this utility model.
[0013] Figure 2 This is a rear view of the overall skid-mounted structure of the propylene compressor of this utility model.
[0014] Figure 3 This is a top view of the overall skid-mounted structure of the propylene compressor of this utility model.
[0015] 1-Common base, 2-Inlet liquid separator, 3-Dry gas sealing plate station, 4-Gas pipeline, 5-Inlet straight pipeline, 6-Inlet impeller, 7-Compressor body, 8-Anti-surge bypass pipeline, 9-Cooling tank, 10-Main motor, 11-Circulating cooling pipe, 12-Oil cooler, 13-Anti-surge valve, 14-Lubricating oil station. Detailed Implementation
[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0017] Please see Figures 1 to 3 This utility model provides an integral skid-mounted structure for a propylene compressor, including a common base 1, an inlet separator 2, a dry gas sealing station 3, a gas pipeline 4, an inlet straight pipeline 5, an inlet impeller 6, a compressor body 7, an anti-surge bypass pipeline 8, and a cooling tank 9. The inlet separator 2 is fixedly connected to the common base 1 and is located above the common base 1. The compressor body 7 is fixedly connected to the common base 1 and is located on one side of the common base 1. The dry gas sealing station 3 is fixedly connected to the common base 1 and is located on one side of the inlet separator 2. The inlet impeller 6 is fixedly connected to the compressor body 7 and is located on one side of the compressor body 7. One end of the inlet straight pipeline 5 is connected to the inlet separator 2, and the other end of the inlet straight pipeline 5 is connected to the inlet impeller 6. One end of the gas pipeline 4 is connected to the dry gas sealing station 3, and the other end of the gas pipeline 4 is connected to the compressor body 7.
[0018] In this embodiment, since propylene is easily liquefied, in order to prevent liquid propylene from entering the compressor body 7 and damaging the inlet impeller 6, an inlet separator is designed on one side of the compressor body 7 to separate the liquid in the propylene gas. To protect the inlet pipeline pressure from exceeding its design pressure, a safety valve is provided on the inlet separator. At the same time, the inlet separator is equipped with a level gauge, pressure transmitter, temperature sensor, etc. The inlet separator is a skirt type, and the bottom is provided with a through hole and is connected to the common base 1 by bolts.
[0019] Furthermore, the overall skid-mounted structure of the propylene compressor also includes an anti-surge bypass pipe 8 and a cooling tank 9. The cooling tank 9 is fixedly connected to the common base 1 and is located on one side of the compressor body 7. One end of the anti-surge bypass pipe 8 is connected to the compressor body 7, and the other end of the anti-surge bypass pipe 8 is connected to the cooling tank 9. The cooling tank 9 is connected to the inlet liquid separator 2.
[0020] In this embodiment, the anti-surge bypass pipe 8 is used for compressor anti-surge, and a cooling tank 9 is designed between the anti-surge bypass pipe 8 and the inlet liquid separator for the return of propylene gas to the compressor body 7.
[0021] Furthermore, the overall skid-mounted structure of the propylene compressor also includes a main motor 10, which is located on one side of the compressor body 7, and the output end of the main motor 10 is fixedly connected to the compressor body 7.
[0022] In this embodiment, the main motor 10 provides power to the compressor body 7.
[0023] Furthermore, the overall skid-mounted structure of the propylene compressor also includes a circulating cooling pipe 11 and an oil cooler 12. The oil cooler 12 is fixedly connected to the common base and located on one side of the main motor 10. One end of the circulating cooling pipe 11 is fixedly connected to the main motor 10, and the other end of the circulating cooling pipe 11 is fixedly connected to the oil cooler 12.
[0024] In this embodiment, the circulating cooling pipe 11 and the oil cooler 12 transport cooling water to cool the main motor 10.
[0025] Furthermore, the overall skid-mounted structure of the propylene compressor also includes an anti-surge valve 13 and a lubrication station 14. The anti-surge valve 13 is located in the middle section of the anti-surge bypass pipe 8, and the lubrication station 14 is fixedly connected to the common base and located below the compressor body 7.
[0026] In this embodiment, the lubricating oil station 14 is bolted to the common base. The lubricating oil station 14 serves as a support for the compressor body 7 and the main motor 10, and also stores lubricating oil for the main motor 10 and the gearbox. Junction boxes are arranged around the lubricating oil station 14 to gather the instruments and equipment in the entire compressor skid together, which is convenient for the owner to perform on-site wiring later.
[0027] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A skid-mounted structure for a propylene compressor, comprising a common base, characterized in that, It also includes an inlet separator, a dry gas sealing station, a gas pipeline, an inlet straight pipeline, an inlet impeller, and a compressor body. The inlet separator is fixedly connected to the common base and is located above the common base. The compressor body is fixedly connected to the common base and is located on one side of the common base. The dry gas sealing station is fixedly connected to the common base and is located on one side of the inlet separator. The inlet impeller is fixedly connected to the compressor body and is located on one side of the compressor body. One end of the inlet straight pipeline is connected to the inlet separator, and the other end of the inlet straight pipeline is connected to the inlet impeller. One end of the gas pipeline is connected to the dry gas sealing station, and the other end of the gas pipeline is connected to the compressor body.
2. The integral skid-mounted structure of the propylene compressor as described in claim 1, characterized in that, The propylene compressor skid-mounted structure also includes an anti-surge bypass pipe and a cooling tank. The cooling tank is fixedly connected to the common base and located on one side of the compressor body. One end of the anti-surge bypass pipe is connected to the compressor body, and the other end of the anti-surge bypass pipe is connected to the cooling tank. The cooling tank is connected to the inlet separator.
3. The integral skid-mounted structure of the propylene compressor as described in claim 2, characterized in that, The overall skid-mounted structure of the propylene compressor also includes a main motor, which is located on one side of the compressor body, and the output end of the main motor is fixedly connected to the compressor body.
4. The integral skid-mounted structure of the propylene compressor as described in claim 3, characterized in that, The propylene compressor skid-mounted structure also includes a circulating cooling pipe and an oil cooler. The oil cooler is fixedly connected to the common base and located on one side of the main motor. One end of the circulating cooling pipe is fixedly connected to the main motor, and the other end of the circulating cooling pipe is fixedly connected to the oil cooler.
5. The integral skid-mounted structure of the propylene compressor as described in claim 4, characterized in that, The propylene compressor skid-mounted structure also includes an anti-surge valve and a lubrication station. The anti-surge valve is located in the middle section of the anti-surge bypass pipeline, and the lubrication station is fixedly connected to the common base and located below the compressor body.