Natural gas cooling device

Abstract

The utility model discloses a natural gas cooling device, which belongs to the field of natural gas cooling equipment and is characterized in that a plurality of heat exchange pipelines are arranged in a ventilation cooling pipeline, penetrate through a circular ring between the ventilation cooling pipeline and an end cover and are inserted into an inner cavity of the end cover; isolating rings are arranged in the first end cover and the second end cover, a main pipeline is arranged between the isolating rings and the circular rings, the main pipeline is communicated with the heat exchange pipeline, a connecting pipe is arranged on the side wall of the main pipeline, the main pipeline and the heat exchange pipeline are sleeved with a first moisture absorption pad and a second moisture absorption pad, and a through hole matched with the heat exchange pipeline is formed in the first moisture absorption pad. Annular distribution of heat exchange pipelines and ventilation cooling design of rings at the two ends improve heat exchange efficiency, and the gas temperature is effectively reduced. The isolation cavity limits water flow and prevents the water flow from affecting the cooling effect. The first and second moisture absorption pads further reduce the gas temperature through moisture absorption operation, and the cooling effect is enhanced. The moisture absorption pad removes gas moisture, and negative effects of water vapor on the cooling process are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas cooling equipment field, especially a kind of natural gas cooling device. BACKGROUND

[0002] Natural gas cooling device is used to reduce the equipment of natural gas temperature, plays an important role in the process of natural gas transportation and processing.Natural gas cooling device is mainly realized by heat exchange principle to reduce temperature.The inside of device is equipped with heat exchange medium, such as liquid natural gas, liquid ammonia or other refrigerant, by heat exchange with natural gas, absorbs its heat, to achieve the effect of cooling.

[0003] In actual application, the surface of heat exchange pipeline of natural gas cooling device will indeed appear water vapor, especially at the main pipeline, this phenomenon is particularly obvious.Water vapor condensation will reduce the cross-sectional area of pipeline, thereby reducing the ventilation capacity.This not only will affect the normal flow of natural gas, but also can reduce heat exchange efficiency, because the reduction of gas flow rate will reduce the contact time and contact area of heat exchange.Cold condensate can be deposited in the inside of pipeline or wellhead, affect the flow direction of natural gas, even cause pipeline to deviate from preset path.This not only will increase the difficulty of pipeline maintenance, but also can cause security risks.If condensate is not cleaned in time, it can mix with other substances in pipeline (such as lubricating oil), and then cause environmental pollution or equipment poisoning.This not only will damage the normal operation of equipment, but also can pose a threat to environment and human health.The existence of condensate can also affect the performance of heat exchanger.Due to the poor heat conduction performance of condensate, it can become thermal resistance in heat exchange process, thereby reducing heat exchange efficiency.At the same time, condensate can also cause corrosion to the material of heat exchanger, shorten the service life of equipment. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of natural gas cooling device, can effectively solve the problems raised in background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A natural gas cooling device, comprising a support seat, a first end cover, a second end cover, a ventilation cooling pipeline and a ventilation interface, the first end cover and the second end cover are located on both sides of the ventilation cooling pipeline, the lower end of the first end cover and the second end cover is provided with a support seat for supporting the entire device, two ventilation interfaces are installed on the first end cover and the second end cover respectively;

[0007] The inside of the ventilation cooling pipeline is provided with a plurality of heat exchange pipelines, and the heat exchange pipelines are inserted into the end cover cavity through the circular ring between the ventilation cooling pipeline and the end cover;

[0008] The interior of the first end cover and the second end cover is provided with an isolation ring, a total pipeline is arranged between the isolation ring and the circular ring, the total pipeline is in communication with the heat exchange pipeline, the side wall of the total pipeline is provided with a connecting pipe, the total pipeline and the heat exchange pipeline are sleeved with a first moisture absorption pad and a second moisture absorption pad, the first moisture absorption pad is provided with a through hole matched with the heat exchange pipeline, and the second moisture absorption pad is provided with a recessed groove matched with the total pipeline, and the first moisture absorption pad and the second moisture absorption pad are used for moisture absorption.

[0009] As a preferred scheme of the present application, the support seat is welded and fixed on the first end cover and the second end cover, a sealing ring is arranged at the connection position of the ventilation and cooling pipeline and the first end cover and the second end cover, and the ventilation and cooling pipeline is connected with the first end cover and the second end cover through bolts.

[0010] As a preferred scheme of the present application, a plurality of heat exchange pipelines are arranged in a ring shape, the heat exchange pipelines are inserted into the circular rings at the two ends of the ventilation and cooling pipeline, and a buffer ring is arranged between the heat exchange pipelines and the circular rings, and the heat exchange pipelines are used for cooling the gas in the ventilation and cooling pipeline.

[0011] As a preferred scheme of the present application, the total pipeline is a circular pipeline, the connecting pipe is integrally designed with the total pipeline, the connecting pipe passes through the hole in the side wall of the end cover, and a sealing ring is arranged at the connection position of the connecting pipe and the end cover.

[0012] As a preferred scheme of the present application, the first moisture absorption pad and the second moisture absorption pad are connected through sewing.

[0013] As a preferred scheme of the present application, an isolation cavity is formed between the isolation ring, the end cover and the circular ring, and the flow of water is limited through the isolation cavity.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] Through the ring-shaped distribution of the heat exchange pipelines and the insertion of the heat exchange pipelines into the circular rings at the two ends of the ventilation and cooling pipeline, the heat exchange efficiency is improved, and the gas temperature is effectively reduced. The buffer ring between the heat exchange pipelines and the circular rings reduces friction and prolongs the service life of the equipment. The isolation cavity formed between the isolation ring and the end cover limits the flow of water, thereby avoiding the adverse effects of water on the cooling effect.

[0016] The first moisture absorption pad and the second moisture absorption pad further reduce the gas temperature through moisture absorption, thereby improving the cooling effect. The moisture absorption effect of the moisture absorption pad helps to remove the moisture in the gas and prevent the moisture from having a negative impact on the cooling process. The moisture absorption pad is usually composed of materials such as cotton bags, silica gel and sponges, which have good moisture absorption performance and help to maintain the dry state of the gas. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 Part structure of the utility model shows a diagram of the utility model;

[0019] Figure 3 The utility model discloses a heat exchange pipeline, end cover, isolation ring and moisture absorption pad exploded view;

[0020] Figure 4 The utility model discloses a heat exchange pipeline, end cover, isolation ring and moisture absorption pad sectional view.

[0021] In the drawing: 1, support seat, 2, first end cover, 3, ventilation cooling pipeline, 4, second end cover, 5, ventilation interface, 6, heat exchange pipeline, 7, main pipeline, 8, connecting pipe, 9, first moisture absorption pad, 10, second moisture absorption pad, 11, through hole, 12, recessed groove, 13, isolation ring. Specific implementation

[0022] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation modes.

[0023] As shown in Figure 1 - Figure 4 A natural gas cooling device, which mainly comprises a support seat 1, an end cover, a ventilation cooling pipeline 3 and a ventilation interface 5. Among them, the first end cover 2 and the second end cover 4 are arranged at both ends of the ventilation cooling pipeline 3 respectively to ensure the integrity of the device. The support seat 1 is located at the lower end of the first end cover 2 and the second end cover 4, and plays a role in supporting the whole equipment. In addition, two ventilation interfaces 5 are installed on the first end cover 2 and the second end cover 4 respectively to facilitate the entry and exit of gas.

[0024] The ventilation cooling pipeline 3 is designed with multiple heat exchange pipelines 6 inside, and these heat exchange pipelines 6 pass through the annular ring between the ventilation cooling pipeline 3 and the end cover and are inserted into the inner cavity of the end cover. Such a design can effectively improve the heat exchange efficiency, so as to achieve the purpose of cooling.

[0025] In the first end cover 2 and the second end cover 4, an isolation ring 13 is specially arranged, and the isolation ring 13 and the annular ring form a main pipeline 7. The main pipeline 7 is communicated with the heat exchange pipeline 6, ensuring the smooth flow of gas during the cooling process. The side wall of the main pipeline 7 is also provided with a connecting pipe 8, and a sealing ring is arranged at the connecting position of the connecting pipe 8 and the end cover to ensure the sealing performance of the device.

[0026] In order to further improve the cooling effect, the total pipeline 7 and the heat exchange pipeline 6 are sleeved with the first moisture absorption pad 9 and the second moisture absorption pad 10. The first moisture absorption pad 9 is provided with through holes 11 matched with the heat exchange pipeline 6, and the second moisture absorption pad 10 is provided with recessed grooves 12 matched with the total pipeline 7. Through the moisture absorption operation of the first moisture absorption pad 9 and the second moisture absorption pad 10, the temperature of the gas can be effectively reduced.

[0027] The support seat 1 is fixed on the first end cover 2 and the second end cover 4 by welding, which ensures the stability of the device. The connecting part of the ventilation cooling pipeline 3 and the first end cover 2 and the second end cover 4 is provided with a sealing ring to prevent gas leakage. In addition, the ventilation cooling pipeline 3 and the end cover are connected by bolts, which is convenient for disassembly and maintenance.

[0028] The heat exchange pipeline 6 is annularly distributed and inserted into the annular ring at both ends of the ventilation cooling pipeline 3. In order to reduce the friction between the heat exchange pipeline 6 and the ventilation cooling pipeline 3, a buffer ring is arranged between the heat exchange pipeline 6 and the annular ring. The heat exchange pipeline 6 effectively cools the gas in the ventilation cooling pipeline 3.

[0029] The total pipeline 7 is designed as a circular pipeline, and the connecting pipe 8 is integrally designed with the total pipeline 7. The connecting pipe 8 penetrates the opening in the side wall of the end cover and is provided with a sealing ring at the connecting part to ensure the tightness of the connection.

[0030] The first moisture absorption pad 9 and the second moisture absorption pad 10 are usually composed of cotton cloth bag, silica gel, sponge and other materials. The two moisture absorption pads are connected by sewing at the butt joint to enhance the moisture absorption effect.

[0031] The isolation ring 13, the end cover and the annular ring form an isolation cavity, which can effectively limit the flow of water and avoid the adverse effect of water on the cooling effect.

[0032] Installation process: Fix the support seat 1 to the lower end of the first end cover 2 and the second end cover 4 by welding, ensuring that the support seat 1 is firmly connected to the end cover. Install two air interfaces 5 on the first end cover 2 and the second end cover 4 respectively, ensuring that the interface position is correct and fixed. Connect the air cooling pipeline 3 to the first end cover 2 and the second end cover 4 by bolts, ensuring that the sealing ring is installed in place to prevent gas leakage. Insert the heat exchange pipeline 6 into the circular ring at both ends of the air cooling pipeline 3, ensuring that there is a buffer ring between the heat exchange pipeline 6 and the circular ring to reduce friction. The heat exchange pipeline 6 should be distributed in a ring shape, ensuring that it effectively cools the gas in the air cooling pipeline 3. Install the first moisture absorbing pad 9 and the second moisture absorbing pad 10 around the main pipeline 7 and the heat exchange pipeline 6 respectively, ensuring that the moisture absorbing pad is fitted and fixed to the pipeline. The first moisture absorbing pad 9 has a through hole 11 adapted to the heat exchange pipeline 6, and the second moisture absorbing pad 10 has a recessed groove 12 adapted to the main pipeline 7. Set the isolation ring 13 inside the first end cover 2 and the second end cover 4, ensuring that the isolation ring 13 forms the main pipeline 7 between the circular ring. Set the connecting pipe 8 on the side wall of the main pipeline 7, and set the sealing ring at the connection to ensure the tightness of the connection. After completing all the installation, check whether all the connections are firm and sealed well. Perform preliminary testing to ensure that the gas can flow smoothly and there is no leakage.

[0033] Usage: Connect the natural gas source to the device through the air interface 5. Turn on the gas source and make the natural gas enter the main pipeline 7 through the air interface 5. The natural gas flows in the main pipeline 7 and is cooled by the heat exchange pipeline 6. When the natural gas flows in the heat exchange pipeline 6, the first moisture absorbing pad 9 and the second moisture absorbing pad 10 further reduce the temperature of the gas by absorbing moisture. Monitor the temperature and flow of the gas, and adjust the moisture absorbing effect of the moisture absorbing pad or the cooling efficiency of the heat exchange pipeline 6 as needed. Regularly check and clean the moisture absorbing pad to ensure its good moisture absorbing effect. Check the sealing performance of the heat exchange pipeline 6 and the connection to ensure that there is no leakage. After use, turn off the gas source and disassemble and maintain after the system pressure is released. When disassembling, loosen the bolts first, then gradually separate the components for cleaning and inspection.

[0034] It is to be noted that, in the present document, relational terms such as first and second, and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A natural gas cooling device, comprising a support base (1), a first end cap (2), a second end cap (4), a ventilation cooling pipe (3), and ventilation ports (5), wherein the first end cap (2) and the second end cap (4) are respectively located on both sides of the ventilation cooling pipe (3), the support base (1) is provided at the lower end of the first end cap (2) and the second end cap (4) for supporting the entire device, and the two ventilation ports (5) are respectively installed on the first end cap (2) and the second end cap (4), characterized in that: The ventilation and cooling pipe (3) is provided with multiple heat exchange pipes (6) inside, and the heat exchange pipes (6) pass through the ring between the ventilation and cooling pipe (3) and the end cap and are inserted into the inner cavity of the end cap; The first end cap (2) and the second end cap (4) are provided with an isolation ring (13). A main pipe (7) is provided between the isolation ring (13) and the ring. The main pipe (7) is connected to the heat exchange pipe (6). A connecting pipe (8) is provided on the side wall of the main pipe (7). A first moisture-absorbing pad (9) and a second moisture-absorbing pad (10) are fitted on the main pipe (7) and the heat exchange pipe (6). A through hole (11) adapted to the heat exchange pipe (6) is opened on the first moisture-absorbing pad (9). A recessed groove (12) adapted to the main pipe (7) is opened on the second moisture-absorbing pad (10). The moisture is absorbed by the first moisture-absorbing pad (9) and the second moisture-absorbing pad (10).

2. The natural gas cooling device according to claim 1, characterized in that: The support base (1) is welded and fixed on the first end cover (2) and the second end cover (4). A sealing ring is provided at the connection between the ventilation cooling pipe (3) and the first end cover (2) and the second end cover (4). The ventilation cooling pipe (3) is connected to the first end cover (2) and the second end cover (4) by bolts.

3. The natural gas cooling device according to claim 2, characterized in that: Multiple heat exchange pipes (6) are arranged in a ring. The heat exchange pipes (6) are inserted into the rings at both ends of the ventilation cooling pipe (3). A buffer ring is provided between the heat exchange pipes (6) and the rings. The heat exchange pipes (6) perform cooling operation on the gas in the ventilation cooling pipe (3).

4. A natural gas cooling device according to claim 3, characterized in that: The main pipe (7) is a circular pipe. The connecting pipe (8) is designed as an integral part of the main pipe (7). The connecting pipe (8) passes through the opening in the side wall of the end cap. A sealing ring is provided at the connection between the connecting pipe (8) and the end cap.

5. A natural gas cooling device according to claim 4, characterized in that: The first absorbent pad (9) and the second absorbent pad (10) are sewn together at the joint.

6. A natural gas cooling device according to claim 5, characterized in that: An isolation cavity is formed between the isolation ring (13), the end cap, and the ring, which restricts the flow of water.

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