Natural gas dehumidification and temperature raising integrated device and control method

Abstract

The application relates to a natural gas dehumidification and temperature rising integrated device and a control method, and relates to the technical field of natural gas dehumidification. The device comprises a primary gas-gas heat exchange mechanism, a secondary gas-gas heat exchange mechanism and a circulating pipeline; the primary heat exchange pipe is communicated with the secondary heat exchange pipe; a natural gas inlet is arranged on the primary heat exchange cavity and communicated with the primary heat exchange pipe; a natural gas outlet and a circulating pipe outlet are arranged on the primary heat exchange cavity; an air inlet and an air outlet are arranged on the secondary heat exchange cavity and communicated with the secondary heat exchange cavity; the air inlet and the air outlet are communicated with the secondary heat exchange cavity; a circulating pipe inlet is arranged on the end of the secondary heat exchange cavity away from the primary heat exchange cavity; the circulating pipe inlet is communicated with the secondary heat exchange pipe; one end of the circulating pipeline is communicated with the circulating pipe inlet, and the other end is communicated with the circulating pipe outlet; a liquid collecting port is arranged on the lowest part of the circulating pipeline close to the circulating pipe inlet. The device efficiently and energy-savingly solves the frozen blockage of the natural gas pipeline.

Description

Technical Field

[0001] This invention belongs to the field of natural gas dehumidification technology, specifically relating to an integrated natural gas dehumidification and heating device and control method. Background Technology

[0002] In the extraction and transportation of oil and natural gas, pre-treated natural gas must travel through long pipelines to reach downstream processing stages. Due to the high moisture content, complex composition, and low temperature of natural gas, freezing and blockage frequently occur in pipelines during winter operation, especially in colder ambient temperatures. This affects the normal operation of the extraction and transportation system, jeopardizing oil and natural gas production and ultimately impacting the company's overall production plan. The primary cause of freezing and blockage is the formation of large amounts of hydrates within the pipeline. These hydrates accumulate in low-lying areas, reducing the pipeline's cross-sectional area and eventually causing complete blockage over time. Numerous studies have shown that the formation of hydrates in natural gas is influenced by three conditions: sufficient moisture content, low temperature and high pressure, and turbulent flow. The first two conditions are the most significant influencing factors. Therefore, the key to solving pipeline freezing blockage lies in disrupting the conditions for hydrate formation, that is, creating a low-humidity, high-temperature, and low-pressure environment for natural gas before it enters the pipeline. Common measures include dehydrating the natural gas, increasing the flow temperature of the natural gas, and reducing the transmission pressure of the natural gas, thereby inhibiting hydrate formation and preventing pipeline freezing blockage.

[0003] When a gas pipeline freezes and becomes blocked, it needs to be thawed to restore production. This usually involves measures such as venting to reduce pressure, heating to unblock the blockage, and adding antifreeze such as methanol to restore pipeline flow. During the troubleshooting process, natural gas is typically burned in the air before being released, resulting in a significant waste of energy and considerable economic losses.

[0004] Therefore, designing an integrated natural gas dehumidification and heating device and control method to efficiently and energy-savingly solve the freezing and blockage of natural gas pipelines is an urgent problem to be solved. Summary of the Invention

[0005] Therefore, this invention aims to overcome the shortcomings of existing technologies and provide an integrated natural gas dehumidification and heating device. Based on the principle of energy cascade utilization, this device establishes a multi-stage energy exchange system using a primary gas-to-gas heat exchange mechanism, a secondary gas-to-gas heat exchange mechanism, and a circulation pipeline. By rationally utilizing the heat of the raw natural gas, it achieves deep dehumidification and secondary heating of the natural gas, thereby disrupting the conditions for hydrate formation in terms of both moisture content and temperature, thus preventing freezing and blockage in gas pipelines. Simultaneously, the entire process primarily utilizes the heat exchange between natural gas and ambient air, saving costs and resources compared to other treatment methods that add antifreeze.

[0006] This invention also provides an integrated control method for natural gas dehumidification and heating. This method controls the start and stop of the drain pump by monitoring the liquid level of the collected liquid, effectively recovering natural gas hydrate condensate and avoiding resource waste and environmental pollution. Simultaneously, monitoring the liquid temperature of the collected liquid regulates the airflow of the axial flow fan, effectively ensuring the antifreeze target of the condensate system while preventing freezing and blockage of the natural gas transmission pipeline.

[0007] The first technical solution provided by this invention:

[0008] An integrated natural gas dehumidification and heating device includes a primary gas-to-gas heat exchange mechanism, a secondary gas-to-gas heat exchange mechanism, and a circulation pipeline. The primary gas-to-gas heat exchange mechanism includes a primary heat exchange chamber and a primary heat exchange tube. The secondary gas-to-gas heat exchange mechanism includes a secondary heat exchange tube and a secondary heat exchange chamber. The primary heat exchange tube is disposed in the primary heat exchange chamber of the primary heat exchange chamber. The secondary heat exchange tube is disposed in the secondary heat exchange chamber of the secondary heat exchange chamber. The primary heat exchange chamber is located above the secondary heat exchange chamber, and the primary heat exchange tube is connected to the secondary heat exchange tube. A natural gas inlet is provided at the end of the primary heat exchange chamber away from the secondary heat exchange chamber, and the natural gas inlet is connected to the primary heat exchange tube. The primary heat exchange chamber has a natural gas outlet and a circulation pipe outlet, which are positioned opposite each other. Both the natural gas outlet and the circulation pipe outlet are connected to the primary heat exchange chamber. The secondary heat exchange chamber has an air inlet and an air outlet, which are positioned opposite each other. Both the air inlet and the air outlet are connected to the secondary heat exchange chamber. A circulation pipe inlet is located at the end of the secondary heat exchange chamber furthest from the primary heat exchange chamber. The circulation pipe inlet is connected to the secondary heat exchange pipe. One end of the circulation pipe is connected to the circulation pipe inlet, and the other end is connected to the circulation pipe outlet. A liquid collection port is located at the lowest point of the circulation pipe near the circulation pipe inlet.

[0009] Furthermore, there are multiple primary heat exchange tubes, which are spaced apart in the primary heat exchange chamber; there are multiple secondary heat exchange tubes, which are spaced apart in the secondary heat exchange chamber; the number of primary heat exchange tubes and secondary heat exchange tubes are adapted to each other.

[0010] Furthermore, it also includes a liquid collection mechanism; the liquid collection mechanism includes a liquid collection hopper, a liquid collector, a liquid discharge pump, and a liquid discharge pipe; one end of the liquid collection hopper is connected to the liquid collection port, and the other end is connected to the liquid collector; the inlet of the liquid discharge pump is connected to the liquid collector, and the other end is connected to the liquid discharge pipe.

[0011] Furthermore, a level gauge is installed in the liquid collector.

[0012] Furthermore, it also includes a fan mechanism; the fan mechanism includes a fan and a temperature sensor; the temperature sensor is located in the liquid collector; the fan is located on the secondary heat exchange chamber and at the air inlet; the temperature sensor is signal-connected to the fan.

[0013] Furthermore, it also includes an insulation shell, supporting columns, and a bottom support base; the primary air-to-air heat exchange mechanism, the secondary air-to-air heat exchange mechanism, the circulation pipeline, the liquid collection mechanism, and the fan mechanism are all located in the insulation shell; an exhaust hole is provided on the insulation shell; the primary air-to-air heat exchange mechanism and the secondary air-to-air heat exchange mechanism are mounted on the supporting columns; the bottom support base is mounted on the supporting columns and is located below the secondary air-to-air heat exchange mechanism; the liquid collection mechanism is mounted on the bottom support base.

[0014] The second technical solution provided by this invention:

[0015] A natural gas dehumidification and heating integrated control method is applied to the natural gas dehumidification and heating integrated device in the first technical solution. The method includes acquiring liquid collection measurement information and performing real-time liquid level analysis based on the liquid collection measurement information to form real-time liquid level information; acquiring liquid collection measurement information and performing real-time liquid temperature analysis based on the liquid collection measurement information to form real-time liquid temperature information; performing drainage control analysis based on the real-time liquid level information to form drainage control information; and performing airflow control analysis based on the real-time liquid temperature information to form airflow control information.

[0016] Furthermore, based on the real-time liquid level information, drainage control analysis is performed to generate drainage control information, including: acquiring the real-time liquid level value, setting the upper limit threshold and the lower limit threshold of liquid level control, and performing the following liquid level control analysis: when the liquid level value reaches the upper limit threshold of liquid level control, drainage control information is generated, and the real-time liquid level value continues to be acquired; when the real-time liquid level value reaches the lower limit threshold of liquid level control, stop drainage control information is generated.

[0017] Furthermore, based on the real-time liquid temperature information, airflow control analysis is performed to generate airflow control information, including: acquiring the real-time liquid temperature value, setting the upper limit threshold, lower limit threshold, and stable threshold for liquid temperature control, and performing the following airflow control analysis: when the real-time liquid temperature value reaches the upper limit threshold, airflow continuously increases control information is generated, and the real-time liquid temperature value continues to be acquired until it reaches the stable value for liquid temperature control, at which point an airflow hold signal is generated; when the real-time liquid temperature value reaches the lower limit threshold, airflow continuously decreases control information is generated, and the real-time liquid temperature value continues to be acquired until it reaches the stable value for liquid temperature control, at which point an airflow hold signal is generated.

[0018] The beneficial effects of this invention are as follows:

[0019] The integrated natural gas dehumidification and heating device is based on the principle of energy cascade utilization. It establishes a multi-stage energy exchange system using a primary gas-to-gas heat exchanger, a secondary gas-to-gas heat exchanger, and circulating pipelines. By rationally utilizing the heat of the raw natural gas, it achieves deep dehumidification and secondary heating, thereby disrupting the conditions for hydrate formation in terms of both moisture content and temperature, thus preventing freezing and blockage in gas pipelines. Simultaneously, the entire process primarily utilizes the heat exchange between natural gas and ambient air, saving costs and resources compared to other treatment methods that add antifreeze.

[0020] The integrated natural gas dehumidification and heating control method controls the start and stop of the drain pump by monitoring the liquid level of the collected liquid, effectively recovering natural gas hydrate condensate and avoiding resource waste and environmental pollution. Simultaneously, monitoring the liquid temperature of the collected liquid regulates the airflow of the axial flow fan, effectively ensuring the antifreeze target of the condensate system while preventing freezing and blockage of the natural gas transmission pipeline. Attached Figure Description

[0021] Figure 1 This is a first-view structural schematic diagram of the integrated natural gas dehumidification and heating device according to an embodiment of the present invention;

[0022] Figure 2 This is a second-view structural schematic diagram of the integrated natural gas dehumidification and heating device according to an embodiment of the present invention;

[0023] Figure 3 This is a diagram illustrating the liquid level control steps of the integrated natural gas dehumidification and heating control method according to an embodiment of the present invention.

[0024] Figure 4 This is a diagram illustrating the liquid temperature control and air volume increase steps in the integrated natural gas dehumidification and heating control method of this invention.

[0025] Figure 5 This diagram illustrates the steps of reducing airflow by controlling liquid temperature in the integrated natural gas dehumidification and heating control method according to an embodiment of the present invention.

[0026] icon:

[0027] 01. Primary gas-to-gas heat exchange mechanism; 11. Primary heat exchange chamber; 12. Primary heat exchange tube; 13. Natural gas inlet; 14. Natural gas outlet; 15. Circulation pipe outlet; 02. Secondary gas-to-gas heat exchange mechanism; 21. Secondary heat exchange chamber; 22. Secondary heat exchange tube; 23. Air inlet; 24. Air outlet; 03. Circulation pipeline; 31. Liquid collection port; 04. Liquid collection mechanism; 41. Liquid collection hopper; 42. Liquid collector; 43. Liquid discharge pump; 44. Liquid discharge pipe; 05. Fan; 61. Support column; 62. Bottom support base. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0034] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0035] Please refer to Figures 1-2This application provides an integrated natural gas dehumidification and heating device. The device includes a primary gas-to-gas heat exchange mechanism 01, a secondary gas-to-gas heat exchange mechanism 02, and a circulation pipeline 03. The primary gas-to-gas heat exchange mechanism 01 includes a primary heat exchange chamber 11 and a primary heat exchange tube 12. The secondary gas-to-gas heat exchange mechanism 02 includes a secondary heat exchange tube 22 and a secondary heat exchange chamber 21. The primary heat exchange tube 12 is disposed in the primary heat exchange chamber of the primary heat exchange chamber 11; the secondary heat exchange tube 22 is disposed in the secondary heat exchange chamber of the secondary heat exchange chamber 21. The primary heat exchange chamber 11 is located above the secondary heat exchange chamber 21, and the primary heat exchange tube 12 is connected to the secondary heat exchange tube 22. A natural gas inlet 13 is provided at the end of the primary heat exchange chamber 11 away from the secondary heat exchange chamber 21, and the natural gas inlet 13 is connected to the primary heat exchange tube 12. The cavity 11 is provided with a natural gas outlet 14 and a circulation pipe outlet 15, and the natural gas outlet 14 and the circulation pipe outlet 15 are arranged opposite to each other; both the natural gas outlet 14 and the circulation pipe outlet 15 are connected to the primary heat exchange cavity; the secondary heat exchange cavity 21 is provided with an air inlet 23 and an air outlet 24, and the air inlet 23 and the air outlet 24 are arranged opposite to each other; both the air inlet 23 and the air outlet 24 are connected to the secondary heat exchange cavity; a circulation pipe inlet is provided at the end of the secondary heat exchange cavity 21 away from the primary heat exchange cavity 11; the circulation pipe inlet is connected to the secondary heat exchange pipe; one end of the circulation pipe 03 is connected to the circulation pipe inlet, and the other end is connected to the circulation pipe outlet 15; a liquid collection port 31 is provided at the lowest point of the circulation pipe 03 near the circulation pipe inlet.

[0036] This device, based on the principle of energy cascade utilization, establishes a multi-stage energy exchange system using a primary gas-to-gas heat exchanger (01), a secondary gas-to-gas heat exchanger (02), and a circulation pipeline (03). By rationally utilizing the heat of the raw natural gas, it achieves deep dehumidification and secondary heating of the natural gas, thereby disrupting the conditions for hydrate formation in terms of both moisture content and temperature, thus preventing freezing and blockage in gas pipelines. Simultaneously, the entire process primarily utilizes the heat exchange between natural gas and ambient air, saving costs and resources compared to other treatment methods that add antifreeze.

[0037] The primary heat exchange tubes 12 are arranged at intervals within the primary heat exchange chamber; the secondary heat exchange tubes 22 are also arranged at intervals within the secondary heat exchange chamber; the number of primary heat exchange tubes 12 and secondary heat exchange tubes 22 is appropriate. Multiple heat exchange tubes increase the contact area between the combustion gas in the heat exchange tubes and the gas in the chamber, resulting in more efficient heat exchange.

[0038] It also includes a liquid collection mechanism 04; the liquid collection mechanism 04 includes a liquid collection hopper 41, a liquid collector 42, a liquid discharge pump 43, and a liquid discharge pipe 44; one end of the liquid collection hopper 41 is connected to the liquid collection port 31, and the other end is connected to the liquid collector 42; the inlet of the liquid discharge pump 43 is connected to the liquid collector 42, and the other end is connected to the liquid discharge pipe 44. A level gauge is installed in the liquid collector 42. The start and stop of the liquid discharge pump 43 are controlled by the liquid level of the liquid collector 42, effectively recovering the natural gas hydrate condensate and avoiding the waste of resources and environmental pollution.

[0039] It also includes a fan 05 mechanism; the fan 05 mechanism includes a fan 05 and a temperature sensor; the temperature sensor is located in the liquid collector 42; the fan 05 is located on the secondary heat exchange chamber 21 and at the air inlet 23; the temperature sensor and the fan 05 are connected via a communication cable. With condensate temperature as the control target and the axial flow fan 05 as the controlled object, the antifreeze target of the condensate system is effectively guaranteed while preventing freezing and blockage of the natural gas transmission pipeline.

[0040] It also includes an insulated shell, supporting columns 61, and a bottom support base 62; the primary air-to-air heat exchange mechanism 01, the secondary air-to-air heat exchange mechanism 02, the circulation pipe 03, the liquid collection mechanism 04, and the fan 05 are all located within the insulated shell; the insulated shell has exhaust holes; the primary air-to-air heat exchange mechanism 01 and the secondary air-to-air heat exchange mechanism 02 are mounted on the supporting columns 61; the bottom support base 62 is mounted on the supporting columns 61 and located below the secondary air-to-air heat exchange mechanism 02; the liquid collection mechanism 04 is mounted on the bottom support base 62. The structure adopts an integrated skid-mounted design, which provides convenience for on-site construction and installation.

[0041] This invention also provides an integrated control method for natural gas dehumidification and heating, applied to the integrated natural gas dehumidification and heating device provided by this invention. This method controls the start and stop of the drain pump by monitoring the liquid level of the collected liquid, effectively recovering natural gas hydrate condensate and avoiding resource waste and environmental pollution. Simultaneously, monitoring the liquid temperature of the collected liquid regulates the airflow of the axial flow fan, effectively ensuring the antifreeze target of the condensate system while preventing freezing and blockage of the natural gas transmission pipeline.

[0042] The method includes the following steps:

[0043] The system acquires liquid collection measurement information and performs real-time liquid level analysis based on this information to generate real-time liquid level information; it also acquires liquid collection measurement information and performs real-time liquid temperature analysis based on this information to generate real-time liquid temperature information; it performs drainage control analysis based on the real-time liquid level information to generate drainage control information; and it performs airflow control analysis based on the real-time liquid temperature information to generate airflow control information.

[0044] Among them, reference Figure 3Based on real-time liquid level information, drainage control analysis is performed to generate drainage control information, including: acquiring real-time liquid level values, setting upper and lower limits for liquid level control, and performing the following liquid level control analysis: when the liquid level value reaches the upper limit for liquid level control, drainage control information is generated, and real-time liquid level values ​​are continuously acquired; when the real-time liquid level value reaches the lower limit for liquid level control, drainage stop control information is generated.

[0045] refer to Figures 4-5 Based on real-time liquid temperature information, airflow control analysis is performed to generate airflow control information, including: acquiring the real-time liquid temperature value, setting an upper threshold, a lower threshold, and a stable threshold for liquid temperature control, and performing the following airflow control analysis: when the real-time liquid temperature value reaches the upper threshold, a control signal for continuously increasing airflow is generated, and the real-time liquid temperature value continues to be acquired until it reaches the stable value, at which point an airflow hold signal is generated; when the real-time liquid temperature value reaches the lower threshold, a control signal for continuously decreasing airflow is generated, and the real-time liquid temperature value continues to be acquired until it reaches the stable value, at which point an airflow hold signal is generated. Airflow control is achieved through frequency adjustment of the fan.

[0046] In summary, the main effective effects of the embodiments provided by the present invention are as follows:

[0047] The integrated natural gas dehumidification and heating device is based on the principle of energy cascade utilization. It establishes a multi-stage energy exchange system using a primary gas-to-gas heat exchanger, a secondary gas-to-gas heat exchanger, and circulating pipelines. By rationally utilizing the heat of the raw natural gas, it achieves deep dehumidification and secondary heating, thereby disrupting the conditions for hydrate formation in terms of both moisture content and temperature, thus preventing freezing and blockage in gas pipelines. Simultaneously, the entire process primarily utilizes the heat exchange between natural gas and ambient air, saving costs and resources compared to other treatment methods that add antifreeze.

[0048] The integrated natural gas dehumidification and heating control method controls the start and stop of the drain pump by monitoring the liquid level of the collected liquid, effectively recovering natural gas hydrate condensate and avoiding resource waste and environmental pollution. Simultaneously, monitoring the liquid temperature of the collected liquid regulates the airflow of the axial flow fan, effectively ensuring the antifreeze target of the condensate system while preventing freezing and blockage of the natural gas transmission pipeline.

[0049] 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.

[0050] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0051] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0052] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0053] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A natural gas dehumidification and heating integrated device, characterized in that, include: The system includes a primary gas-to-gas heat exchange mechanism, a secondary gas-to-gas heat exchange mechanism, and a circulation pipeline; the primary gas-to-gas heat exchange mechanism includes a primary heat exchange cavity and a primary heat exchange tube; the secondary gas-to-gas heat exchange mechanism includes a secondary heat exchange tube and a secondary heat exchange cavity; the primary heat exchange tube is disposed in the primary heat exchange cavity of the primary heat exchange cavity; The secondary heat exchange tube is disposed in the secondary heat exchange chamber of the secondary heat exchange cavity; the primary heat exchange cavity is disposed above the secondary heat exchange cavity, and the primary heat exchange tube is connected to the secondary heat exchange tube; a natural gas inlet is provided at the end of the primary heat exchange cavity away from the secondary heat exchange cavity, and the natural gas inlet is connected to the primary heat exchange tube; a natural gas outlet and a circulation pipe outlet are provided on the primary heat exchange cavity, and the natural gas outlet and the circulation pipe outlet are arranged opposite to each other; both the natural gas outlet and the circulation pipe outlet are connected to the primary heat exchange tube. The first and second stage heat exchange chambers are connected; the second stage heat exchange chamber has an air inlet and an air outlet, which are arranged opposite to each other; both the air inlet and the air outlet are connected to the second stage heat exchange chamber; a circulation pipe inlet is provided at the end of the second stage heat exchange chamber away from the first stage heat exchange chamber; the circulation pipe inlet is connected to the second stage heat exchange pipe; one end of the circulation pipe is connected to the circulation pipe inlet, and the other end is connected to the circulation pipe outlet; a liquid collection port is provided at the lowest point of the circulation pipe near the circulation pipe inlet; There are multiple primary heat exchange tubes, which are spaced apart in the primary heat exchange chamber; there are multiple secondary heat exchange tubes, which are spaced apart in the secondary heat exchange chamber; the number of primary heat exchange tubes and secondary heat exchange tubes are adapted to each other; It also includes a liquid collection mechanism; the liquid collection mechanism includes a liquid collection hopper, a liquid collector, a liquid discharge pump, and a liquid discharge pipe; one end of the liquid collection hopper is connected to the liquid collection port, and the other end is connected to the liquid collector; the inlet of the liquid discharge pump is connected to the liquid collector, and the other end is connected to the liquid discharge pipe; The device further includes a fan mechanism; the fan mechanism includes a fan and a temperature sensor; the temperature sensor is disposed in the liquid collector; the fan is disposed on the secondary heat exchange chamber and located at the air inlet; the temperature sensor is signal-connected to the fan.

2. The integrated natural gas dehumidification and heating device as described in claim 1, characterized in that, The liquid collector is equipped with a level gauge.

3. The integrated natural gas dehumidification and heating device as described in claim 2, characterized in that, It also includes an insulation shell, supporting columns, and a bottom support base; the primary air-to-air heat exchange mechanism, the secondary air-to-air heat exchange mechanism, the circulation pipeline, the liquid collection mechanism, and the fan mechanism are all located in the insulation shell; The insulation shell is provided with an exhaust hole; the primary gas-to-gas heat exchange mechanism and the secondary gas-to-gas heat exchange mechanism are mounted on the support column; the bottom support base is mounted on the support column and located below the secondary gas-to-gas heat exchange mechanism; the liquid collection mechanism is mounted on the bottom support base.

4. A method for integrated control of natural gas dehumidification and heating, employing the integrated natural gas dehumidification and heating device as described in claim 3, characterized in that, include: Acquire liquid collection measurement information and perform real-time liquid level analysis based on the liquid collection measurement information to form real-time liquid level information; The liquid collection measurement information is acquired, and real-time liquid temperature analysis is performed based on the liquid collection measurement information to generate real-time liquid temperature information; Based on the real-time liquid level information, drainage control analysis is performed to generate drainage control information; Based on the real-time liquid temperature information, airflow control analysis is performed to generate airflow control information.

5. The integrated control method for natural gas dehumidification and heating as described in claim 4, characterized in that, The step of performing drainage control analysis based on the real-time liquid level information to generate drainage control information includes: Obtain real-time liquid level values, set upper and lower threshold values ​​for liquid level control, and perform the following liquid level control analysis: When the liquid level reaches the upper limit threshold of the liquid level control, drainage control information is generated, and the real-time liquid level value continues to be acquired. When the real-time liquid level reaches the lower limit threshold of the liquid level control, drainage stop control information is generated.

6. The integrated control method for natural gas dehumidification and heating as described in claim 5, characterized in that, The step of performing airflow control analysis based on the real-time liquid temperature information to generate airflow control information includes: Obtain real-time liquid temperature values, set upper and lower thresholds for liquid temperature control, and set a stable liquid temperature control threshold. Then, perform the following airflow control analysis: When the real-time liquid temperature value reaches the upper limit threshold of the liquid temperature control, a control information for continuous increase of air volume is generated, and the real-time liquid temperature value is continued to be acquired until the real-time liquid temperature value reaches the liquid temperature control stabilization threshold, at which point an air volume maintenance signal is generated. When the real-time liquid temperature value reaches the lower limit threshold of the liquid temperature control, a control information for continuously reducing the air volume is generated, and the real-time liquid temperature value is continuously acquired until the real-time liquid temperature value reaches the liquid temperature control stabilization threshold, at which point an air volume maintenance signal is generated.

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