Interstage cooler for a circulating air compressor for liquid oxygen production

By designing a cooling pipe flow structure and installing a drain seat, a sludge storage seat, and a locking unit in the interstage cooler of the circulating air compressor, the problem of impurity accumulation was solved, achieving effective cooling and simplified maintenance, and extending the equipment's lifespan.

CN224339142UActive Publication Date: 2026-06-09XINJIANG DINGSHENG ENERGY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG DINGSHENG ENERGY TECHNOLOGY CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing circulating air compressor interstage coolers lack dedicated drainage structures or have poorly designed drainage structures, leading to the accumulation of impurities, which affects cooling efficiency and equipment lifespan. At the same time, disassembly and installation are difficult, increasing maintenance costs and time.

Method used

The design incorporates a circulating flow structure for cooling pipes and coolant, and includes a drain seat, a sludge storage seat, and a locking unit to simplify impurity cleaning, prevent accumulation, and extend equipment life.

Benefits of technology

This ensures effective gas cooling, simplifies the impurity removal process, reduces maintenance costs and time, and extends equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an interstage cooler for a circulating air compressor used in liquid oxygen production, relating to the field of cooler technology. The interstage cooler includes a cooler shell, cooling pipes, a coolant inlet pipe, a coolant outlet pipe, a drain seat, a sludge reservoir, and a locking unit. Flanges are provided on both sides of the cooler shell. The cooling pipes are located inside the cooler shell and are fixedly connected to the flanges. The coolant inlet pipe is located on the front of the cooler shell. The circulating flow design of the cooling pipes and coolant in this interstage cooler effectively cools the gas, ensuring that the temperature of the gas between stages of the circulating air compressor meets requirements. The design of the drain seat and sludge reservoir, along with the locking unit, makes cleaning impurities simple and convenient, preventing impurities from accumulating inside the cooler, extending the service life of the equipment, and facilitating the inspection and maintenance of the entire cooler.
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Description

Technical Field

[0001] This utility model relates to the field of cooler technology, specifically to an interstage cooler for a circulating air compressor used in liquid oxygen production. Background Technology

[0002] In a circulating air compressor system for liquid oxygen production, an interstage cooler is an essential component. Its main function is to cool the gas between stages of the circulating air compressor to ensure the normal operation and efficiency of the air compressor system.

[0003] Existing circulating air compressor interstage coolers have the following shortcomings in liquid oxygen production operations. First, some coolers lack a dedicated drainage structure, or the drainage structure is poorly designed, leading to the accumulation of impurities inside the cooler, affecting cooling efficiency and equipment lifespan. Even with a drainage structure, disassembly and installation may be difficult, increasing maintenance costs and time. To address these shortcomings, this invention provides a circulating air compressor interstage cooler for liquid oxygen production, solving the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an interstage cooler for a circulating air compressor used in liquid oxygen production. The circulating flow design of the cooling pipes and coolant effectively cools the gas, ensuring that the temperature of the gas between the stages of the circulating air compressor meets the requirements. The design of the drain seat and the sludge storage seat, as well as the setting of the locking unit, make the cleaning of impurities simple and convenient, preventing the accumulation of impurities in the cooler and extending the service life of the equipment. The entire cooler is easy to inspect and maintain.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an interstage cooler for a circulating air compressor for liquid oxygen preparation, comprising a cooler shell, cooling pipes, a coolant inlet pipe, a coolant outlet pipe, a drain seat, a sludge storage seat, and a locking unit;

[0006] Flanges are provided on both sides of the cooler housing;

[0007] The cooling pipe is located inside the cooler housing and is fixedly connected to the flange.

[0008] The coolant inlet pipe is located on the front side of the cooler housing;

[0009] The coolant drain pipe is located on the back of the cooler housing;

[0010] The drain seat is located at the bottom of the cooler housing;

[0011] The sludge storage seat is movably engaged inside the sludge discharge seat;

[0012] The locking unit is located on the side of the sewage discharge seat and is used to lock and limit the sewage storage seat.

[0013] Preferably, the side of the sludge storage seat is provided with a locking hole, and the locking unit includes:

[0014] The guide rail is fixedly connected to the side of the sewage outlet seat;

[0015] The adjusting seat is movable and snapped onto the guide rail frame;

[0016] A locking rod is mounted on the adjusting seat and movably inserted into the locking hole.

[0017] Preferably, a lead screw is threaded onto the guide rail frame, and the lead screw is rotatably connected to the adjusting seat.

[0018] Preferably, the lead screw is provided with a rotating handle.

[0019] Preferably, the internal movable engagement of the sludge storage seat and the sludge discharge seat is provided with a first rubber ring.

[0020] Preferably, a reinforcing mounting plate is fixedly connected to the side of the sewage discharge seat.

[0021] Preferably, a reinforcing rib is fixedly connected between the reinforcing mounting plate and the sewage outlet seat.

[0022] Preferably, the top of the cooler housing is provided with a top limiting seat, and a baffle is movably engaged inside the top limiting seat.

[0023] Preferably, a second rubber ring is movably engaged between the top limiting seat and the baffle.

[0024] This utility model discloses an interstage cooler for a circulating air compressor used in liquid oxygen production, which has the following beneficial effects:

[0025] This interstage cooler for liquid oxygen production circulating air compressors features a circulating flow design for cooling pipes and coolant that effectively cools the gas, ensuring that the temperature of the gas between the stages of the circulating air compressor meets requirements. The design of the drain seat and sludge storage seat, along with the locking unit, makes cleaning impurities simple and convenient, preventing impurities from accumulating inside the cooler and extending the service life of the equipment. The entire cooler is also easy to inspect and maintain. Attached Figure Description

[0026] 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.

[0027] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a top view of the present invention;

[0029] Figure 3 This is a cross-sectional view of the cooler casing of this utility model;

[0030] Figure 4 This is a schematic diagram of the locking unit of this utility model;

[0031] Figure 5 This is a disassembly diagram of the baffle of this utility model.

[0032] In the diagram: 1. Cooler housing; 11. Flange; 2. Cooling pipe; 3. Coolant inlet pipe; 4. Coolant outlet pipe; 5. Drain seat; 51. Reinforcing mounting plate; 52. Reinforcing rib; 6. Drain seat; 61. Locking hole; 62. First rubber ring; 7. Locking unit; 71. Guide rail frame; 72. Adjusting seat; 73. Locking rod; 74. Screw; 741. Rotating handle; 8. Top limit seat; 9. Baffle; 91. Second rubber ring. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] This application provides an interstage cooler for a circulating air compressor used in liquid oxygen production, solving the problem that some coolers lack a dedicated drainage structure or have an unreasonable drainage structure design, leading to the accumulation of impurities inside the cooler, affecting cooling efficiency and equipment lifespan. Even with a drainage structure, there may be difficulties in disassembly and installation, increasing maintenance costs and time.

[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0036] Example 1: This utility model embodiment discloses an interstage cooler for a circulating air compressor used in liquid oxygen production, according to the attached... Figures 1-5 As shown, it includes a cooler housing 1, a cooling pipe 2, a coolant inlet pipe 3, a coolant outlet pipe 4, a drain seat 5, a sludge reservoir 6, and a locking unit 7.

[0037] The cooler housing 1 is the main frame structure of the entire cooler. Flanges 11 are provided on both sides of the cooler housing 1. Cooling pipes 2 are located inside the cooler housing 1 and are fixedly connected to the flanges 11. Coolant inlet pipe 3 is located on the front of the cooler housing 1, and coolant outlet pipe 4 is located on the back of the cooler housing 1. Drain seat 5 is located at the bottom of the cooler housing 1.

[0038] The cooler housing 1 provides installation space and support for other components inside the cooler, forming a relatively enclosed environment that facilitates the circulation of coolant within it.

[0039] When the gas requiring cooling passes through cooling pipe 2, the coolant circulates within the cooler casing 1, carrying away heat from the gas within cooling pipe 2 through heat exchange, thereby achieving gas cooling. Cooling pipe 2 is the core component of the cooling process, effectively cooling the gas through heat exchange, ensuring that the temperature of the gas between stages of the circulating air compressor meets the requirements, and improving the efficiency and stability of the entire air compressor system.

[0040] The coolant inlet pipe 3 is located on the front of the cooler housing 1, and the coolant outlet pipe 4 is located on the back of the cooler housing 1. Coolant enters the cooler housing 1 through the coolant inlet pipe 3, exchanges heat with the cooling pipes 2, and then flows out through the coolant outlet pipe 4, forming a circulating flow of coolant. The design of the coolant inlet pipe 3 and the coolant outlet pipe 4 ensures that the coolant can smoothly enter and exit the cooler, guaranteeing the circulating flow of coolant, continuously removing heat from the gas inside the cooling pipes 2, and maintaining the cooling effect.

[0041] The drain seat 5 is located at the bottom of the cooler housing 1, and the sludge storage seat 6 is movably engaged inside the drain seat 5. During the cooling process, some impurities or dirt may settle at the bottom of the cooler, and these impurities will enter the sludge storage seat 6 through the drain seat 5. When the impurities in the sludge storage seat 6 accumulate to a certain level, they can be removed from the drain seat 5 for cleaning.

[0042] The design of the drain seat 5 and the sludge storage seat 6 facilitates the cleaning of impurities inside the cooler, preventing impurities from accumulating inside the cooler and affecting the cooling effect and equipment lifespan. At the same time, the movable snap-fit ​​design makes it easy to disassemble and install the sludge storage seat 6.

[0043] The locking unit 7 is located on the side of the drain seat 5 and includes a guide rail frame 71, an adjusting seat 72, a locking rod 73, a lead screw 74, and a rotating handle 741. The guide rail frame 71 is fixedly connected to the side of the drain seat 5, the adjusting seat 72 is movably engaged with the guide rail frame 71, the locking rod 73 is located on the adjusting seat 72 and is movably inserted into the locking hole 61 on the side of the drain seat 6, the lead screw 74 is threadedly connected to the guide rail frame 71 and rotatably connected to the adjusting seat 72, and the rotating handle 741 is located on the lead screw 74.

[0044] By rotating the handle 741, the lead screw 74 is driven to rotate. Since the lead screw 74 is threadedly connected to the guide rail frame 71 and rotatably connected to the adjusting seat 72, the rotation of the lead screw 74 will drive the adjusting seat 72 to move on the guide rail frame 71, thereby allowing the locking rod 73 to be inserted into or pulled out of the locking hole 61, thus achieving the locking and limiting of the sludge storage seat 6.

[0045] The locking unit 7 ensures that the sludge storage seat 6 is stably fixed in the sludge discharge seat 5, preventing the sludge storage seat 6 from loosening or falling off during operation and ensuring the normal operation of the cooler; at the same time, it is simple and convenient to operate, and it is easy to disassemble and install the sludge storage seat 6.

[0046] Example 2: This utility model embodiment discloses an interstage cooler for a circulating air compressor used in liquid oxygen production, according to the attached... Figures 1-5 As shown, it includes a cooler housing 1, a cooling pipe 2, a coolant inlet pipe 3, a coolant outlet pipe 4, a drain seat 5, a sludge reservoir 6, and a locking unit 7.

[0047] Flanges 11 are provided on both sides of the cooler housing 1;

[0048] Cooling pipe 2 is installed inside the cooler housing 1 and is fixedly connected to flange 11;

[0049] The coolant inlet pipe 3 is located on the front of the cooler housing 1;

[0050] The coolant drain pipe 4 is located on the back of the cooler housing 1;

[0051] The drain seat 5 is located at the bottom of the cooler housing 1;

[0052] The waste storage seat 6 is movable and connected to the inside of the waste discharge seat 5;

[0053] The locking unit 7 is located on the side of the drain seat 5 and is used to lock and limit the sludge storage seat 6.

[0054] The sludge reservoir 6 and the sludge drain 5 are internally fitted with a first rubber ring 62. The first rubber ring 62 uses the elasticity of rubber to fill the gap between the sludge reservoir 6 and the sludge drain 5, preventing coolant or impurities from leaking out of the gap.

[0055] The first rubber ring 62 improves the sealing between the sludge reservoir 6 and the sludge drain 5, preventing coolant leakage that could lead to waste and environmental pollution, while also preventing impurities from leaking and affecting the surrounding environment.

[0056] A reinforcing mounting plate 51 is fixedly connected to the side of the drain seat 5; a reinforcing rib 52 is fixedly connected between the reinforcing mounting plate 51 and the drain seat 5. The reinforcing mounting plate 51 increases the area of ​​connection between the drain seat 5 and other components, while the reinforcing rib 52 enhances the connection strength between the reinforcing mounting plate 51 and the drain seat 5, enabling the drain seat 5 to be more stably fixed at the target support position.

[0057] The top of the cooler housing 1 is provided with a top limiting seat 8, and a baffle 9 is movably engaged inside the top limiting seat 8. The baffle 9 can move within the top limiting seat 8 to open or close the opening at the top of the cooler housing 1, facilitating inspection, cleaning and maintenance of the cooler interior.

[0058] A second rubber ring 91 is movably engaged between the top limiting seat 8 and the baffle 9. The second rubber ring 91 utilizes the elasticity of rubber to fill the gap between the top limiting seat 8 and the baffle 9, preventing dust, impurities, and other contaminants from entering the cooler. The second rubber ring 91 improves the sealing performance between the top limiting seat 8 and the baffle 9, protecting the internal components of the cooler from external environmental influences and extending the equipment's service life.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An interstage cooler for a circulating air compressor used in liquid oxygen production, characterized in that, include: Cooler housing (1), with flanges (11) on both sides of the cooler housing (1); Cooling pipe (2) is disposed inside the cooler housing (1) and fixedly connected to flange (11); A coolant inlet pipe (3) is provided on the front side of the cooler housing (1); A coolant drain pipe (4) is provided on the back of the cooler housing (1); A drain seat (5) is provided at the bottom of the cooler housing (1); The sludge storage seat (6) is movably engaged inside the sludge discharge seat (5); A locking unit (7) is disposed on the side of the drain seat (5) and is used to lock and limit the sludge storage seat (6).

2. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 1, characterized in that, The sludge storage base (6) has a locking hole (61) on its side, and the locking unit (7) includes: The guide rail bracket (71) is fixedly connected to the side of the sewage seat (5); Adjustment seat (72) is movably attached to the guide rail frame (71); The locking rod (73) is mounted on the adjusting seat (72) and is movably inserted into the locking hole (61).

3. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 2, characterized in that, The guide rail frame (71) is threaded with a lead screw (74), which is rotatably connected to the adjusting seat (72).

4. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 3, characterized in that, The lead screw (74) is provided with a rotating handle (741).

5. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 1, characterized in that, The internal movable engagement of the sludge storage seat (6) and the sludge discharge seat (5) is provided with a first rubber ring (62).

6. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 1, characterized in that, The side of the sewage outlet seat (5) is fixedly connected to a reinforcing mounting plate (51).

7. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 6, characterized in that, A reinforcing rib (52) is fixedly connected between the reinforcing mounting plate (51) and the sewage outlet seat (5).

8. The interstage cooler for a circulating air compressor used in liquid oxygen production according to claim 1, characterized in that, The top of the cooler housing (1) is provided with a top limiting seat (8), and a baffle (9) is movably engaged inside the top limiting seat (8).

9. The interstage cooler for a circulating air compressor for liquid oxygen production according to claim 8, characterized in that, A second rubber ring (91) is movably engaged between the top limiting seat (8) and the baffle (9).