A non-stop maintenance exhaust pipe group, gas-liquid separator and pre-cooler system

By setting up an isolation structure in the discharge channel of the discharge pipe assembly, the problem of blockage in the discharge pipes of chemical plants and oil refineries was solved, enabling uninterrupted blockage removal and maintaining production continuity.

CN224534552UActive Publication Date: 2026-07-21ANHUI ZHANWEI GAS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHANWEI GAS CO LTD
Filing Date
2025-03-05
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, the discharge pipelines of chemical plants and oil refineries are prone to blockage due to impurities, requiring shutdown for cleaning and maintenance, which affects production efficiency.

Method used

Design a non-stop maintenance discharge pipe assembly, including at least two discharge channels. Each channel is equipped with an isolation structure at the connection with the chamber. When one channel is blocked, the fluid is diverted to the other channel for discharge, thus achieving non-stop unblocking.

Benefits of technology

It enables the clearing of blocked channels without shutting down the machine, preventing fluid leakage and maintaining production continuity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of discharge pipeline especially, more particularly to a kind of maintenance discharge pipe group of not stopping, gas-liquid separator and pre-cooling machine system, a kind of maintenance discharge pipe group of not stopping, including, at least two discharge passages, all discharge passages are all communicated with same chamber;And, all discharge passages are set with isolation structure between easy jamming place and chamber. By setting two discharge passages with isolation structure, when one of discharge passages is jammed, the isolation structure on the discharge passage is adjusted to isolation state, at this time, the fluid in chamber cannot be discharged through this discharge passage again, and instead concentrates in another discharge passage and is discharged, at this time, the jammed discharge passage can be disassembled to clear jam and maintain without stopping.
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Description

Technical Field

[0001] This utility model relates to the technical field of discharge pipelines, and in particular to a discharge pipe assembly, gas-liquid separator and precooling system that can be maintained without shutting down the machine. Background Technology

[0002] Discharge pipes generally refer to structures that discharge fluids from the interior of a container. In chemical plants, oil refineries, and other places, discharge pipes are used to remove products or waste materials after a reaction from the reaction vessel.

[0003] In chemical plants, oil refineries, and other similar locations, the discharged fluids may carry impurities, solids, or contaminants. These impurities can easily cause blockages at the bends of the discharge pipes, leading to obstruction. In such cases, disassembly and cleaning of the blockages are necessary, which requires shutdown and affects production efficiency.

[0004] For example, in a precooling system, if impurities in the gas-liquid separator cause blockage in the discharge pipe when it discharges the separated fluid, the discharge pipe needs to be disassembled for cleaning. In order to prevent the dirt inside the gas-liquid separator from leaking through the disassembled discharge pipe, the machine needs to be shut down. Utility Model Content

[0005] In view of the problem that the existing technology requires downtime for maintenance, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a maintenance discharge pipe assembly that does not require shutdown.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a non-stop maintenance discharge pipe assembly, comprising at least two discharge channels, all of which are connected to the same chamber; and all discharge channels are provided with an isolation structure between the chamber and the easily blocked parts.

[0008] As a preferred embodiment of the non-stop maintenance discharge pipe assembly of this utility model, the discharge channels are independent and not connected to each other.

[0009] As a preferred embodiment of the non-stop maintenance discharge pipe assembly of this utility model, at least two of the discharge channels are connected by an interconnection point, and at least two of the discharge channels have a shared section.

[0010] In a preferred embodiment of the non-stop maintenance discharge pipe assembly of this utility model, at least two of the discharge channels are connected by at least one interconnection point.

[0011] In a preferred embodiment of the non-stop maintenance discharge pipe assembly of this utility model, at least two of the discharge channels are connected by at least two interconnection points.

[0012] As a preferred embodiment of the non-stop maintenance discharge pipe assembly of this utility model, wherein: an isolation structure is provided between the interconnection point and the easily blocked point on all the discharge channels.

[0013] In a preferred embodiment of the non-stop maintenance discharge pipe assembly of this utility model, the discharge channel is composed of a pipe, and the isolation structure is a valve body installed on the pipe.

[0014] This utility model also proposes a gas-liquid separator, including the above-mentioned non-stop maintenance discharge pipe assembly; the gas-liquid separator is provided with a discharge port, and the non-stop maintenance discharge pipe assembly is connected to the gas-liquid separator through the discharge port.

[0015] This utility model also proposes a precooling machine system, including the gas-liquid separator described above.

[0016] The beneficial effects of this utility model are as follows: By setting two discharge channels with isolation structures, when one of the discharge channels is blocked, the isolation structure on the discharge channel is adjusted to the isolation state. At this time, the fluid in the chamber can no longer be discharged through this discharge channel, but instead concentrates in the other discharge channel for discharge. At this time, the blocked discharge channel can be disassembled for cleaning and maintenance without stopping the machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Wherein:

[0018] Figure 1 This is a schematic diagram of the maintenance discharge pipe assembly structure in Embodiment 1 of this utility model.

[0019] Figure 2 This is a schematic diagram of the first and second pipe structures in Embodiment 1 of this utility model.

[0020] Figure 3 This is a diagram showing the working status of the maintenance discharge pipe assembly in Embodiment 1 of this utility model without shutting down the machine.

[0021] Figure 4 This is a schematic diagram of the maintenance discharge pipe assembly structure in Embodiment 2 of this utility model.

[0022] Figure 5 This is a schematic diagram of the first pipeline isolation state in Embodiment 2 of this utility model.

[0023] Figure 6This is a schematic diagram of the second pipeline isolation state in Embodiment 2 of this utility model.

[0024] Figure 7 This is a schematic diagram of the maintenance discharge pipe assembly structure in Embodiment 3 of this utility model.

[0025] Figure 8 This is a schematic diagram of the maintenance discharge pipe assembly structure in Embodiment 4 of this utility model without shutting down the machine.

[0026] Figure 9 This is a schematic diagram of the gas-liquid separator structure in Embodiment 5 of this utility model.

[0027] Figure 10 This is a structural diagram of the precooling machine system in Embodiment 6 of this utility model. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] Example 1, referring to Figure 1 A non-stop maintenance discharge pipe assembly is provided, including at least two discharge channels 100, all of which are connected to the same chamber; and all discharge channels 100 are provided with an isolation structure 300 between the chamber and the easily blocked part 200.

[0033] Specifically, the chamber is a container that needs to discharge fluid. In this embodiment, it mainly refers to a container in which the discharged fluid contains impurities, dirt, or solids. When these fluids flow through the discharge channel 100, some of the impurities, dirt, or solids contained in the fluid will accumulate at the blockage point 200 of the discharge channel 100, causing a blockage problem. Two discharge channels 100 are connected to the chamber at the same time. When the fluid in the chamber is discharged, it can pass through the two discharge channels 100 at the same time. When one of the discharge channels 100 is blocked, the isolation structure 300 on the discharge channel 100 is adjusted to the isolation state. At this time, the fluid in the chamber can no longer be discharged through this discharge channel 100, but instead concentrates in the other discharge channel 100 for discharge. At this time, the blocked discharge channel 100 can be disassembled for cleaning and maintenance without stopping the machine.

[0034] like Figure 2 The discharge channel 100 is composed of pipes, and the isolation structure 300 is a valve body installed on the pipes. In this embodiment, there are two pipes, which are labeled as the first pipe 101 and the second pipe 102 respectively. The first valve body 301 and the second valve body 302 are installed on the first pipe 101 and the second pipe 102 respectively. The bends in the pipes are generally the places where the pipes are prone to blockage 200 when they are working.

[0035] When the first pipe 101 is blocked, the first valve body 301 can be closed, so that the fluid inside the chamber cannot be discharged through the first pipe 101, but instead concentrates in the second pipe 102 for discharge. At this time, the easily blocked part 200 of the first pipe 101 can be disassembled for cleaning and maintenance. Moreover, the second pipe 102 can still maintain normal fluid discharge, and the fluid will not leak due to the disassembly of the first pipe 101, thus achieving the effect of maintenance without stopping the machine.

[0036] like Figure 3 The discharge channels 100 are independent and not connected to each other. That is, the first pipe 101 and the second pipe 102 each have an opening connected to the chamber, and the first pipe 101 and the second pipe 102 are independent of each other.

[0037] Example 2. Refer to Figure 4 This embodiment differs from the first embodiment in that at least two discharge channels 100 are connected by an interconnection point 500, and at least two discharge channels 100 have a shared segment 600. In this embodiment, the number of discharge channels 100 is two, and the two discharge channels 100 are connected, so that there is a shared segment 600 between the discharge channels 100. This setting has two effects.

[0038] First, the fluid discharged from the chamber generally needs to be concentrated in a storage unit. Some storage units only have one incoming material receiving port. This configuration can improve the adaptability of the discharge pipe group.

[0039] Secondly, if the distance between the chamber and the storage unit is long, using two independent discharge channels 100 will consume more material.

[0040] like Figure 4 The two discharge channels 100 are connected by an interconnection point 500. The two discharge channels 100 are the first channel and the second channel, which are composed of a first pipe 101 and a second pipe 102, as shown in the figure. The first pipe 101 and the second pipe 102 each have a connection end 103 that connects to the chamber, and the first pipe 101 and the second pipe 102 are connected by a three-way structure 501, so that there is a shared section 600 between the first pipe 101 and the second pipe 102. This shared section 600 refers to the pipe section from the three-way structure 501 to the storage unit.

[0041] This method allows the discharge pipe assembly to be used in storage units with only a single incoming material receiving port, while also reducing the amount of pipe material used.

[0042] like Figure 5 An isolation structure 300 is provided between the interconnection point 500 and the blockage point 200 on all discharge channels 100. When the first pipe 101 and the second pipe 102 are connected, if the first pipe 101 is blocked and is disassembled for maintenance, it is necessary to consider not only the leakage of fluid in the chamber from the disassembled first pipe 101, but also the leakage of fluid normally discharged from the second pipe 102 from the first pipe 101. Therefore, a third valve body 303 is required between the three-way structure 501 connecting the first pipe 101 and the second pipe 102 and the first pipe 101. When the first pipe 101 is disassembled, the first valve body 301 and the third valve body 303 are in the closed state, so that the second pipe 102 can normally discharge the fluid in the chamber without leakage.

[0043] like Figure 6 Similarly, on the second pipe 102, a fourth valve body 304 needs to be installed between the tee structure 501 and the blockage point 200. When the second pipe 102 is blocked and the blockage point 200 is disassembled, the second valve body 302 and the fourth valve body 304 need to be in the closed state.

[0044] This solution ensures that, even when the first pipe 101 and the second pipe 102 share a section 600, the other pipe can continue to operate normally after one pipe is disassembled, thus guaranteeing the function of maintenance without shutting down the system.

[0045] Example 3

[0046] This embodiment differs from the first embodiment in that, in many existing chambers that require fluid drainage, there is only one drainage pipe connection port. When applied to this type of chamber, two drainage channels 100 share the same connection end 103, such as... Figure 7 As shown, the first pipe 101 and the second pipe 102 share a connection end 103, forming a shared section 600 between the chamber and the tee structure 501. A first valve body 301 and a second valve body 302 are respectively installed on the two pipes between the tee structure 501 and the easily blocked section 200 of the two pipes.

[0047] Thus, compared to the solution in Embodiment 2, this solution is suitable for a chamber with only one discharge pipe connection port, and when one of the discharge pipes needs to be disassembled, only one valve needs to be closed for disassembly. For example, when disassembling the first pipe 101, only the first valve needs to be closed, and when disassembling the second pipe 102, only the second valve needs to be closed.

[0048] The rest of the structure is the same as in Example 2.

[0049] Example 4

[0050] Reference Figure 8 This embodiment differs from the previous embodiment in that the two discharge channels 100 are connected by at least two interconnection points 500. In this embodiment, the two discharge channels 100 have two shared sections 600, that is, the two discharge channels 100 have the same connection end 103 connected to the chamber, and only one discharge end connected to the storage unit.

[0051] This allows the tube assembly to be used simultaneously in a chamber with only one discharge pipe connection and a storage unit with only one incoming material receiving port.

[0052] Therefore, as shown in the figure, the first pipe 101 and the second pipe 102 are connected by two T-junctions 501. The blockage points 200 of the first pipe 101 and the second pipe 102 are both located between the two T-junctions 501. A first valve body 301 and a third valve body 303 are respectively installed between the blockage point 200 on the first pipe 101 and the two T-junctions 501. A second valve body 302 and a fourth valve body 304 are respectively installed between the blockage point 200 on the second pipe 102 and the two T-junctions 501.

[0053] Similarly, when the first pipe 101 is blocked, the first valve body 301 and the third valve body 303 are closed, and the blockage-prone part 200 of the first pipe 101 is disassembled for cleaning and maintenance while ensuring the normal operation of the second pipe 102. When the second pipe 102 is blocked, the second valve body 302 and the fourth valve body 304 are closed, and the blockage-prone part 200 of the second pipe 102 is disassembled for cleaning and maintenance while ensuring the normal operation of the first pipe 101.

[0054] Through the structural design of this embodiment, the pipe assembly can be used simultaneously in a chamber with only one discharge pipe connection port and a storage unit with only one incoming material receiving port, and maintenance work can still be carried out without stopping the machine.

[0055] The rest of the structure is the same as in Example 3.

[0056] Example 5

[0057] This embodiment differs from the above embodiments in that: this embodiment discloses a gas-liquid separator, including the non-stop maintenance discharge pipe assembly in the above embodiments; the gas-liquid separator is provided with a discharge port 701, and the non-stop maintenance discharge pipe assembly is connected to the gas-liquid separator through the discharge port 701.

[0058] The internal space of the gas-liquid separator is a chamber. The non-stop maintenance discharge pipe group is connected to the gas-liquid separator through the discharge port 701. When the gas-liquid separator is performing sewage discharge, the two discharge channels 100 can work simultaneously. When one of the discharge channels 100 becomes blocked, the isolation structure 300 isolates the discharge channel 100 and allows for disassembly and maintenance, which can prevent the leakage of high-temperature and high-pressure gas and fluid inside the gas-liquid separator. At the same time, the other discharge channel 100 can still operate normally, achieving the effect of non-stop maintenance.

[0059] like Figure 9 The first pipe 101 and the second pipe 102 of the discharge pipe assembly are both connected to the chamber of the gas-liquid separator through the discharge port 701, and are used to discharge the fluid in the chamber of the gas-liquid separator.

[0060] The rest of the structure is the same as in Example 4.

[0061] Example 6

[0062] Reference Figure 10 This embodiment differs from the above embodiments in that it also discloses a precooling system, which is the gas-liquid separator in the above embodiments.

[0063] The precooling system also includes an evaporator 806, an expansion valve 801, a compressor 802, a condenser 803, a dryer filter 804, and a refrigerant low-pressure gauge 805.

[0064] The main function of evaporator 806 is to absorb heat from the cold storage. In evaporator 806, liquid refrigerant evaporates at low pressure and low temperature, absorbing heat from the cold storage and turning into gaseous refrigerant. During this process, evaporator 806 absorbs heat from the air, thus lowering the air temperature.

[0065] The function of expansion valve 801 is to control the flow rate of liquid refrigerant from condenser 803 into evaporator 806, and to maintain the superheat at the outlet of evaporator 806 at a certain level, preventing liquid refrigerant from leaving evaporator 806 and entering compressor 802, thus avoiding damage to compressor 802. Expansion valve 801, through its throttling effect, causes the high-pressure refrigerant fluid to rapidly expand and evaporate, absorbing heat from the air through the pipe wall, thus performing heat exchange.

[0066] Compressor 802 is responsible for compressing and transporting refrigerant, compressing the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous state, and then transporting it to condenser 803. The operation of compressor 802 is cyclical, continuously absorbing heat from the low-pressure area into the refrigerant and then dissipating it into the air in the high-pressure area, thus playing a role in regulating the temperature.

[0067] The main function of condenser 803 is to cool and condense the high-temperature refrigerant superheated vapor discharged from compressor 802 into a high-pressure fluid, thus releasing heat to the outside. In this process, the high-temperature, high-pressure gaseous refrigerant releases heat in condenser 803 and gradually cools into a liquid state.

[0068] The function of the 804 dryer filter is to filter impurities and moisture in the system, ensuring the cleanliness of the refrigeration system and preventing blockage or corrosion caused by impurities or moisture.

[0069] The 805 refrigerant low-pressure gauge is used to monitor the pressure on the low-pressure side of the refrigeration system, helping operators understand the system's operating status so that appropriate adjustments can be made.

[0070] The function of a gas-liquid separator is to separate liquid droplets from the air, making the air drier. During startup, operation, or defrosting, when the refrigerant returns to the gas line, it preserves the refrigerant in the return pipe, protecting the compressor 802. The gas-liquid separator is also responsible for separating fluids from the gas and discharging moisture through the discharge pipe.

[0071] The rest of the structure is the same as in Example 5.

[0072] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this utility model. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0073] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0074] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A maintenance discharge pipe assembly that does not require shutdown, characterized in that: include, At least two discharge channels (100), all of which connect to the same chamber; and, All discharge channels (100) are equipped with isolation structures (300) between the chamber and the easily blocked parts (200).

2. The non-stop maintenance discharge pipe assembly as described in claim 1, characterized in that: The discharge channels (100) are independent of each other and not connected.

3. The non-stop maintenance discharge pipe assembly as described in claim 1 or 2, characterized in that: At least two of the discharge channels (100) are connected by an interconnection point (500), and at least two of the discharge channels (100) have a shared segment (600).

4. The non-stop maintenance discharge pipe assembly as described in claim 3, characterized in that: At least two of the discharge channels (100) are connected by at least one interconnection point (500).

5. The non-stop maintenance discharge pipe assembly as described in claim 3, characterized in that: At least two of the discharge channels (100) are connected by at least two interconnection points (500).

6. The non-stop maintenance discharge pipe assembly as described in claim 4 or 5, characterized in that: All of the aforementioned discharge channels (100) are provided with an isolation structure (300) between the interchange point (500) and the blockage point (200).

7. The non-stop maintenance discharge pipe assembly as described in claim 1, 2, 4 or 5, characterized in that: The discharge channel (100) is composed of a pipe, and the isolation structure (300) is a valve body installed on the pipe.

8. A gas-liquid separator, characterized in that: Includes the non-stop maintenance discharge pipe assembly as described in any one of claims 1, 2, 4, and 5; also includes, The outlet (701) is used for maintenance without shutting down the machine. The outlet pipe assembly is connected to the gas-liquid separator through the outlet (701).

9. A precooling system, characterized in that: Includes the gas-liquid separator as described in claim 8.