An oil and gas recovery device combining condensation and adsorption

Abstract

The present invention relates to the technical field of oil and gas separation, and in particular to an oil and gas recovery device combined with condensation and adsorption, comprising an oil and gas input pipeline for inputting oil and gas into the oil and gas recovery device for condensation and adsorption; an oil and gas condensation device group for condensing the oil and gas input from the oil and gas input pipeline; an oil and gas adsorption device group for adsorbing and desorbing the oil and gas after condensation treatment; an oil and gas recovery device group for recovering the oil and gas components obtained after desorption and discharging other components separated during adsorption; a heat exchange device group for performing heat exchange between the oil and gas condensation device group and the oil and gas adsorption device group; and an oil and gas recovery control system for controlling the process of oil and gas condensation and oil and gas adsorption. The present invention recovers oil and gas by combining condensation and adsorption, and controls the oil and gas recovery process of condensation and adsorption through the oil and gas recovery control system, thereby improving the oil and gas recovery efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil-gas separation, and in particular to an oil-gas recovery device combining condensation and adsorption. Background Art

[0002] Oil and gas adsorption technology can effectively reduce environmental pollution, reduce resource loss and improve economic benefits. The adsorbent will gradually become saturated during use and needs to be replaced regularly. The adsorption process usually consumes a certain amount of energy. Oil and gas condensation recovery technology is an effective oil and gas resource utilization technology that can achieve efficient recovery and improve the utilization rate of oil and gas resources. The choice of condensation temperature is crucial to the condensation effect. If the condensation temperature is too high, the oil and gas separation may not be complete; if the condensation temperature is too low, it will lead to excessive energy consumption and waste. In addition, during the use of the condensation equipment, the cleaning and maintenance of the equipment are important issues that condensation technology needs to face in practical applications.

[0003] Chinese Patent Publication No.: CN103394267B discloses an oil and gas recovery device combining condensation and adsorption, including a condensing unit and an adsorption unit interconnected by pipelines, wherein the condensing unit is composed of an evaporator, a compressor, a condenser and an expansion valve to form a refrigeration circuit, and the adsorption unit is composed of an adsorption tank with a built-in adsorbent, and the condensing unit is also provided with a heat recovery heat exchanger between the compressor and the condenser, and a heating device for regenerating the adsorbent is provided inside the adsorption tank, and the heat recovery heat exchanger and the heating device form a circulation loop. However, this scheme does not optimize the condensation and adsorption processes, and cannot improve the oil and gas recovery efficiency. Summary of the invention

[0004] To this end, the present invention provides an oil and gas recovery device combining condensation and adsorption to overcome the problem of low oil and gas recovery efficiency in the prior art.

[0005] To achieve the above object, the present invention provides an oil and gas recovery device combining condensation and adsorption, comprising:

[0006] An oil and gas input pipeline, one end of which is used for oil and gas input, and the other end of which is far away from the oil and gas input is connected to the oil and gas condensation device group, and is used to input the oil and gas into the oil and gas recovery device for condensation and adsorption;

[0007] An oil and gas condensing device group, which is connected to the oil and gas input pipeline, the oil and gas adsorption device group, the oil and gas recovery control system and the heat exchange device group, and is used to condense the oil and gas input from the oil and gas input pipeline;

[0008] An oil-gas adsorption device group, which is connected to the oil-gas condensation device group, the heat exchange device group, the oil-gas recovery control system and the oil-gas recovery device group, and is used to adsorb and desorb the oil-gas after condensation treatment;

[0009] An oil and gas recovery device group, which is connected to the oil and gas adsorption device group, is used to recover the oil and gas components obtained after desorption and discharge other components separated during adsorption;

[0010] A heat exchange device group, which is connected to the oil-gas condensation device group and the oil-gas adsorption device group, and is used for heat exchange between the oil-gas condensation device group and the oil-gas adsorption device group;

[0011] The oil and gas recovery control system is connected to the oil and gas condensation device group and the oil and gas adsorption device group, and is used to control the process of oil and gas condensation and oil and gas adsorption.

[0012] Furthermore, the oil and gas recovery control system includes:

[0013] Information collection module, used to collect condensing unit information, adsorption unit information and oil and gas recovery volume in real time;

[0014] A condensing temperature control module is used to calculate the optimal condensing temperature through the condensing neural network model according to the condensing unit information, and to control the condensing temperature of the condensing unit according to the optimal condensing temperature, and to judge the effectiveness of the optimal condensing temperature and train the neural network model, and to judge the working state of the condensing unit, and optimize the effectiveness judgment process of the optimal condensing temperature according to the judgment result;

[0015] A condensing equipment control module, used to control the operation of the condensing unit according to the working status of the condensing unit and the condensing unit information;

[0016] An adsorption temperature control module, used to calculate and control the optimal adsorption temperature through an adsorption neural network model, and also used to calculate and control the optimal desorption temperature through a desorption neural network model;

[0017] The adsorption equipment control module is used to judge the working state of the adsorption unit and control the operation of the adsorption unit;

[0018] The feedback adjustment module is used to calculate the oil and gas recovery rate according to the oil and gas recovery amount, train each neural network model according to the oil and gas recovery rate, and adjust the judgment process of the working state of the condensing unit and the working state of the adsorption unit.

[0019] Furthermore, the condensing temperature control module is provided with a condensing temperature control unit for inputting the oil and gas condensing input flow and the oil and gas condensing input temperature into the condensing neural network model to obtain the optimal condensing temperature, and controlling the condensing temperature of the condensing unit according to the optimal condensing temperature;

[0020] The condensing temperature control unit divides the historical condensation data into a condensing temperature training set and a condensing temperature test set, trains the condensing neural network model through the condensing temperature training set, and applies the condensing neural network model to the optimal condensing temperature calculation when the condensing neural network model meets the accuracy requirements of the condensing temperature test set. The condensing temperature control unit inputs the oil and gas condensation input flow and the oil and gas condensation input temperature into the condensing neural network model, and the condensing neural network model outputs the predicted condensing temperature, which is used as the optimal condensing temperature. The condensing temperature control unit controls the condensing temperature of the condensing unit to be the optimal condensing temperature.

[0021] Further, the condensing temperature control module is provided with a real-time adjustment unit for judging the effectiveness of the optimal condensing temperature according to the oil and gas condensing input flow and the oil and gas condensing output flow, and training the neural network model, and the real-time adjustment unit is connected to the condensing temperature control unit;

[0022] The real-time adjustment unit calculates the oil and gas condensation amount Q according to the oil and gas condensation input flow Q1 and the oil and gas condensation output flow Q2 of a condensation cycle, sets Q=Q1-Q2, and compares the oil and gas condensation amount Q with the preset oil and gas condensation amount Q0, and judges the effectiveness of the optimal condensation temperature according to the comparison result, wherein:

[0023] When Q<Q0, the real-time adjustment unit determines that the optimal condensation temperature is effective;

[0024] When Q≥Q0, the real-time adjustment unit determines that the optimal condensing temperature is invalid, and calculates the adjustment coefficient U, setting U=0.8+3×e -[(Q-Q0)+3] , e is the base of the natural logarithm, the real-time adjustment unit adjusts the optimal condensation temperature i according to the adjustment coefficient U, the adjusted optimal condensation temperature is iu, and iu=U×i is set. The real-time adjustment unit uses the gas condensation input flow, the oil and gas condensation input temperature and the adjusted optimal condensation temperature as the data in the condensation training set to train the condensation neural network model.

[0025] Furthermore, the condensing temperature control module is provided with an environment optimization unit for judging the working state of the condensing unit according to the working temperature, working time and dirt accumulation of the condensing unit, and optimizing the effectiveness judgment process of the optimal condensing temperature according to the judgment result;

[0026] The environmental optimization unit calculates the condensing unit working coefficient A according to the condensing unit working temperature T, working time H and dirt accumulation D, and sets A=0.2×(T / T0)+0.4×(H / H0+D / D0), where T0 is the preset condensing unit working temperature, H0 is the preset working time, and D0 is the preset dirt accumulation. The environmental optimization unit compares the condensing unit working coefficient A with the preset condensing unit working coefficient A0, and determines the working state of the condensing unit according to the comparison result, wherein:

[0027] When A≤A0, the environment optimization unit determines that the condensing unit is in a normal state;

[0028] When A>A0, the environmental optimization unit determines that the condensing unit is in an abnormal state, and optimizes the preset oil and gas condensation amount Q0. The optimized preset oil and gas condensation amount is Qa0, and Qa0=a×Q0 is set, where a is the optimization coefficient.

[0029] Furthermore, the condensing equipment control module controls the operation of the condensing unit according to the working state of the condensing unit, wherein:

[0030] When the condensing unit is in a normal state, the condensing equipment control module does not control the operation of the condensing unit;

[0031] When the condensing unit is in an abnormal state, the condensing equipment control module controls the replacement of the currently running condensing unit.

[0032] Furthermore, the condensing equipment control module compares the oil and gas condensing input flow Q1 of a condensing cycle with the rated oil and gas condensing input flow Qe, and controls the operation of the condensing unit according to the comparison result, wherein:

[0033] When Q1≤1.5×Qe, the condensing equipment control module determines not to control the operation of the condensing unit;

[0034] When Q1>1.5×Qe, the condensing equipment control module determines to control the operation of the condensing unit and controls the start of another condensing unit.

[0035] Furthermore, the adsorption temperature control module is provided with an adsorption temperature control unit for inputting the oil and gas adsorption input flow and the oil and gas adsorption input temperature into the adsorption neural network model to obtain the optimal adsorption temperature, and controlling the adsorption temperature of the condensing unit according to the optimal adsorption temperature;

[0036] The adsorption temperature control unit divides the historical adsorption data into an adsorption temperature training set and an adsorption temperature test set, trains the adsorption neural network model through the adsorption temperature training set, and applies the adsorption neural network model to the optimal adsorption temperature calculation when the adsorption neural network model meets the accuracy requirements of the adsorption temperature test set. The adsorption temperature control unit inputs the oil and gas adsorption input flow rate and the oil and gas adsorption input temperature into the adsorption neural network model, and the adsorption neural network model outputs a predicted adsorption temperature, which is used as the optimal adsorption temperature. The adsorption temperature control unit controls the adsorption temperature of the adsorption unit to be the optimal adsorption temperature;

[0037] The adsorption temperature control module is provided with a desorption temperature control unit, which is used to input the initial amount of oil and gas desorption and the initial temperature of oil and gas desorption into the desorption neural network model to obtain the optimal desorption temperature, and control the desorption temperature of the condensing unit according to the optimal desorption temperature;

[0038] The desorption temperature control unit divides historical desorption data into a desorption temperature training set and a desorption temperature test set, trains a desorption neural network model through the desorption temperature training set, and applies the desorption neural network model to the calculation of the optimal desorption temperature when the desorption neural network model meets the accuracy requirement of the desorption temperature test set. The desorption temperature control unit inputs the initial amount of oil and gas desorption and the initial temperature of oil and gas desorption into the desorption neural network model, and the desorption neural network model outputs a predicted desorption temperature, which is used as the optimal desorption temperature. The desorption temperature control unit controls the desorption temperature of the desorption unit to be the optimal desorption temperature.

[0039] Furthermore, the adsorption equipment control module compares the oil and gas concentration M of the adsorption unit currently performing oil and gas adsorption with the preset oil and gas concentration M0, and determines the working state of the adsorption unit according to the comparison result, wherein:

[0040] When M<M0, the adsorption equipment control module determines that the adsorption unit is in a normal state and the adsorbent has not reached saturation;

[0041] When M≥M0, the adsorption equipment control module determines that the adsorption unit is in an abnormal state and the adsorbent is saturated, and controls the adsorption unit currently performing desorption to be replaced with a desorption unit performing adsorption.

[0042] Further, the feedback regulation module calculates the oil and gas recovery rate R according to the oil and gas recovery volume V in the feedback cycle, and sets R=V / V1×100%, where V1 is the total amount of oil and gas condensation adsorption processing in the feedback cycle. The feedback regulation module compares the oil and gas recovery rate R with the preset oil and gas recovery rate R0, and judges the oil and gas recovery efficiency according to the comparison result, wherein:

[0043] When R≥R0, the feedback regulation module determines that the oil and gas recovery efficiency is high;

[0044] When R<R0, the feedback regulation module determines that the oil and gas recovery efficiency is low, and uses the oil and gas condensation input flow, oil and gas condensation input temperature and optimal condensation temperature within the feedback cycle as the training set of the condensation neural network model, the oil and gas desorption initial amount, oil and gas desorption initial temperature and optimal desorption temperature as the training set of the desorption neural network model, and the oil and gas adsorption input flow, oil and gas adsorption input temperature and optimal adsorption temperature as the training set of the adsorption neural network model, and trains each neural network model respectively. The feedback regulation module adjusts the preset condensing unit working coefficient A0, and the adjusted preset condensing unit working coefficient is Ar0, and Ar0=A0×r is set, r is the adjustment coefficient, 0.87≤r<1. The feedback regulation module adjusts the preset oil and gas concentration M0, and the adjusted preset oil and gas concentration is Mr0, and Mr0=M0×r is set.

[0045] Compared with the prior art, the beneficial effect of the present invention lies in that the oil and gas recovery device inputs oil and gas into the oil and gas recovery device through the oil and gas input pipeline for condensation and adsorption, and condenses the oil and gas input through the oil and gas input pipeline through the oil and gas condensation device group, adsorbs and desorbs the oil and gas after condensation through the oil and gas adsorption device group, and recovers the oil and gas components obtained after desorption through the oil and gas recovery device group, and discharges other components separated during adsorption, and performs heat exchange between the oil and gas condensation device group and the oil and gas adsorption device group through the heat exchange device group, thereby recovering the heat resources generated by condensation and applying them in the adsorption process, and controlling the processes of oil and gas condensation and oil and gas adsorption through the oil and gas recovery control system, thereby improving the efficiency of oil and gas condensation and oil and gas adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the structure of the oil and gas recovery device combining condensation and adsorption in this embodiment;

[0047] Figure 2 This is a schematic diagram of the structure of the oil and gas recovery control system of this embodiment;

[0048] Figure 3 This is a schematic diagram of the structure of the condensing temperature control module of this embodiment;

[0049] Figure 4 Schematic diagram of the structure of the adsorption temperature control module of this embodiment. DETAILED DESCRIPTION

[0050] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0052] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0053] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] See also Figure 1 As shown, it is a structural schematic diagram of the oil and gas recovery device combined with condensation and adsorption in this embodiment, and the device includes:

[0055] An oil and gas input pipeline 1, one end of which is used for oil and gas input, and the other end of which is far away from the oil and gas input is connected to the oil and gas condensation device group, and is used to input the oil and gas into the oil and gas recovery device for condensation and adsorption;

[0056] The oil and gas condensation device group is connected to the oil and gas input pipeline 1, the oil and gas adsorption device group, the oil and gas recovery control system 22 and the heat exchange device group, and is used to condense the oil and gas input from the oil and gas input pipeline 1;

[0057] An oil-gas adsorption device group, which is connected to the oil-gas condensation device group, the heat exchange device group, the oil-gas recovery control system 22 and the oil-gas recovery device group, and is used to adsorb and desorb the oil-gas after condensation treatment;

[0058] An oil and gas recovery device group, which is connected to the oil and gas adsorption device group, is used to recover the oil and gas components obtained after desorption and discharge other components separated during adsorption;

[0059] A heat exchange device group, which is connected to the oil-gas condensation device group and the oil-gas adsorption device group, and is used for heat exchange between the oil-gas condensation device group and the oil-gas adsorption device group;

[0060] The oil and gas recovery control system 22 is connected to the oil and gas condensation device group and the oil and gas adsorption device group, and is used to control the process of oil and gas condensation and oil and gas adsorption.

[0061] Specifically, the oil and gas recovery device inputs oil and gas into the oil and gas recovery device through the oil and gas input pipeline for condensation and adsorption, and condenses the oil and gas input through the oil and gas input pipeline through the oil and gas condensation device group, adsorbs and desorbs the oil and gas after condensation through the oil and gas adsorption device group, and recovers the oil and gas components obtained after desorption through the oil and gas recovery device group, and discharges other components separated during adsorption, and performs heat exchange between the oil and gas condensation device group and the oil and gas adsorption device group through the heat exchange device group, thereby recovering the heat resources generated by condensation, and applying them in the adsorption process, and controlling the processes of oil and gas condensation and oil and gas adsorption through the oil and gas recovery control system, thereby improving the efficiency of oil and gas condensation and oil and gas adsorption.

[0062] Specifically, the oil and gas condensing device group includes a first condensation transport pipeline 2, one end of which is connected to the oil and gas input pipeline 1 for transporting the oil and gas input by the oil and gas input pipeline 1, and the other end of which is connected to the first condensing unit 5 to transport the oil and gas to the first condensing unit 5. The first condensation transport pipeline 2 is provided with a first condensation transport pipeline valve 4 for controlling the opening and closing of the first condensation transport pipeline 2. The first condensing unit 5 is connected to the second condensation transport pipeline 9 at the other end away from the first condensation transport pipeline 2. The second condensation transport pipeline 9 is connected to the condensation adsorption main pipeline 11 for transporting the condensed oil and gas in the first condensing unit 5 to the condensation adsorption main pipeline. The second condensation transport pipeline 9 is provided with a second condensation transport pipeline valve 7 for controlling the opening and closing of the second condensation transport pipeline 9.

[0063] The third condensation transport pipeline 3 has one end connected to the oil and gas input pipeline 1 for transporting the oil and gas input by the oil and gas input pipeline 1, and the other end connected to the second condensing unit 6 for transporting the oil and gas to the second condensing unit 6. The third condensation transport pipeline 3 is provided with a third condensation transport pipeline valve 45 for controlling the opening and closing of the third condensation transport pipeline 3. The second condensing unit 6 is connected to the fourth condensation transport pipeline 10 at the other end away from the third condensation transport pipeline 3. The fourth condensation transport pipeline 10 is connected to the condensation adsorption main pipeline 11 for transporting the condensed oil and gas in the second condensing unit 6 to the condensation adsorption main pipeline. The fourth condensation transport pipeline 10 is provided with a fourth condensation transport pipeline valve 8 for controlling the opening and closing of the fourth condensation transport pipeline.

[0064] Specifically, this embodiment does not limit the transportation mode of each pipeline. Those skilled in the art can freely set it according to actual needs, and it only needs to meet the transportation needs of the condensation and adsorption process of oil and gas. For example, a transmission pump can be set in the pipeline to provide power for transmission. The condensing unit refers to a collection of devices for condensing oil and gas. This embodiment does not specifically limit the composition of the condensing unit. Those skilled in the art can freely set it, and it only needs to meet the condensation needs of oil and gas. For example, a condensing unit can be set to include an evaporator, a compressor, a condenser and an expansion valve.

[0065] Specifically, the oil and gas adsorption device group includes a first adsorption transport pipeline 14, one end of which is connected to the condensation adsorption main pipeline 11, and the other end is connected to the first adsorption unit 17, and is used to transport the condensed oil and gas to the first adsorption unit 17. The first adsorption transport pipeline 14 is provided with a first adsorption transport pipeline valve 12;

[0066] A second adsorption transport pipeline 15, one end of which is connected to the condensation adsorption main pipeline 11, and the other end is connected to the second adsorption unit 16, for transporting the condensed oil and gas to the second adsorption unit 16, and a second adsorption transport pipeline valve 13 is provided on the second adsorption transport pipeline 15;

[0067] The balancing pipeline 20 has one end connected to the first adsorption unit 17 and the other end connected to the second adsorption unit 16 to balance the air pressure of the first adsorption unit 17 and the second adsorption unit 16. A balancing pipeline valve 21 is provided on the balancing pipeline 20 to control the opening and closing of the balancing pipeline 20.

[0068] Specifically, the adsorption unit refers to a collection of devices for adsorbing and desorbing condensed oil and gas. This embodiment does not specifically limit the composition of the adsorption unit. Those skilled in the art can freely set it up, and it only needs to meet the adsorption and desorption requirements of condensed oil and gas. For example, the adsorption unit in this embodiment can be set to include an adsorption tank, and the adsorption tank is provided with a built-in adsorbent and a heating device for regenerating the adsorbent. The first adsorption unit and the second adsorption unit alternately adsorb, desorb and regenerate the adsorbent on the oil and gas through the heating device and the adsorbent. This embodiment does not limit the adsorption mode of the adsorption unit. Those skilled in the art can freely set it up according to actual needs, and it only needs to meet the adsorption requirements of condensed oil and gas. For example, it is set to adsorb the condensed oil and gas through a heatable and regenerated adsorbent. This embodiment does not limit the desorption mode. Those skilled in the art can freely set it up, and it only needs to meet the demand for desorption of adsorbed oil and gas. For example, the desorption mode is set to connect the heating device in the adsorption tank through a heat exchange device. After the adsorbent adsorbs the oil and gas to saturation, the temperature of the adsorbent is increased by the heating device, the saturated adsorption amount of oil and gas on the adsorbent is reduced, and the oil and gas are released.

[0069] Specifically, the oil and gas recovery device group includes a first oil and gas recovery device 19, which is used to recover other components discharged after the oil and gas are adsorbed by the first adsorption unit 17, and is also used to recover the oil and gas components discharged by the first adsorption unit 17 after desorption of the adsorbed oil and gas;

[0070] The second oil and gas recovery device 18 is used to recover other components discharged after the second adsorption unit 16 adsorbs the oil and gas, and is also used to recover the oil and gas components discharged after the second adsorption unit 16 desorbs the adsorbed oil and gas.

[0071] Specifically, the oil and gas recovery device refers to a device that discharges other components separated by adsorption and recovers the oil and gas components obtained by desorption after condensing and adsorbing the oil and gas. The present embodiment does not limit the type of the oil and gas recovery device. Technical personnel in this field can freely set it according to actual needs, and it only needs to meet the needs of collecting oil and gas components and discharging other components. For example, the oil and gas recovery device can be set to a storage tank, a gas cylinder and a pipeline made of corrosion-resistant and high-pressure resistant materials. The recovery method of the oil and gas recovery device refers to a method of discharging other components and recovering oil and gas after condensation and adsorption through the oil and gas recovery device. The present embodiment does not specifically limit the recovery method of the oil and gas recovery device. Technical personnel in this field can freely set it, and it only needs to meet the needs of collecting oil and gas components and discharging other components. For example, the recovery method can be set to store the oil and gas components in a storage tank and discharge other components through a pipeline.

[0072] Specifically, the heat exchange device group includes:

[0073] The first heat recovery heat exchanger 25 has one end connected to the first heat recovery pipe 23, and is connected to the first condensing unit 5 and the second condensing unit 6 respectively by the way that the first heat recovery pipe 23 is connected to the first shunt heat recovery pipe 46 and the second shunt heat recovery pipe 31, and the other end is connected to the first adsorption unit 17 and the second adsorption unit 16 by the way that the second heat recovery pipe 26 is connected to the third shunt heat recovery pipe 29 and the fourth shunt heat recovery pipe 27, respectively, for connecting the first condensing unit 5 and the second condensing unit 6 to the oil The condensation heat generated by the condensation of the gas is recovered, and the recovered condensation heat is applied to the oil and gas desorption process of the first adsorption unit 17 and the second adsorption unit 16. The first shunt heat recovery pipeline 46 is provided with a first shunt heat recovery pipeline valve 24, the second shunt heat recovery pipeline 31 is provided with a second shunt heat recovery pipeline valve 32, the third shunt heat recovery pipeline 29 is provided with a third shunt heat recovery pipeline valve 30, and the fourth shunt heat recovery pipeline 27 is provided with a fourth shunt heat recovery pipeline valve 28, and the respective shunt heat recovery pipeline valves are used to control the opening and closing of the respective shunt heat recovery pipelines;

[0074] The second heat recovery heat exchanger 37 has one end connected to the third heat recovery pipe 47, and is connected to the first condensing unit 5 and the second condensing unit 6 respectively by means of the third heat recovery pipe 47 being connected to the fifth shunt heat recovery pipe 33 and the sixth shunt heat recovery pipe 35, and the other end connected to the first adsorption unit 17 and the second adsorption unit 16 by means of the fourth heat recovery pipe 48 being connected to the seventh shunt heat recovery pipe 40 and the eighth shunt heat recovery pipe 38 by means of the fourth heat recovery pipe 4, for heating the first condensing unit 5 and the second condensing unit 6 to the oil. The condensation heat generated by the condensation of the gas is recovered, and the recovered condensation heat is applied to the oil and gas desorption process of the first adsorption unit 17 and the second adsorption unit 16. The fifth diversion heat recovery pipeline 33 is provided with a fifth diversion heat recovery pipeline valve 34, the sixth diversion heat recovery pipeline 35 is provided with a sixth diversion heat recovery pipeline valve 36, the seventh diversion heat recovery pipeline 40 is provided with a seventh diversion heat recovery pipeline valve 41, and the eighth diversion heat recovery pipeline 38 is provided with an eighth diversion heat recovery pipeline valve 39. The diversion heat recovery pipeline valves are used to control the opening and closing of each diversion heat recovery pipeline.

[0075] Specifically, the heat recovery heat exchanger refers to a device for transferring heat from one fluid to another. This embodiment does not specifically limit the type of the heat recovery heat exchanger. Technical personnel in this field can set it freely, and it only needs to meet the heat recovery and utilization requirements. For example, a heat storage heat exchanger can be set as a heat recovery heat exchanger. This embodiment does not limit the condensation heat recovery method. For example, the condensation heat recovery method can be set to use a heat storage body composed of solid materials to transfer the condensation heat from a high-temperature fluid to a low-temperature fluid. This embodiment does not limit the setting position of each valve. Technical personnel in this field can set it freely, and it only needs to meet the control requirements of each pipeline.

[0076] See also Figure 2 As shown, it is a schematic diagram of the structure of the oil and gas recovery control system of this embodiment, and the oil and gas recovery control system includes:

[0077] Information collection module, used to collect condensing unit information, adsorption unit information and oil and gas recovery volume in real time;

[0078] A condensing temperature control module is used to calculate the optimal condensing temperature through a condensing neural network model according to the condensing unit information, and to control the condensing temperature of the condensing unit according to the optimal condensing temperature, and to judge the effectiveness of the optimal condensing temperature, and to train the neural network model, and to judge the working state of the condensing unit, and to optimize the effectiveness judgment process of the optimal condensing temperature according to the judgment result, and the condensing temperature control module is connected with;

[0079] A condensing equipment control module, used to control the operation of the condensing unit according to the working status of the condensing unit and the information of the condensing unit, and the condensing equipment control module is connected to the information acquisition module;

[0080] An adsorption temperature control module, used to calculate and control the optimal adsorption temperature through an adsorption neural network model, and also used to calculate and control the optimal desorption temperature through a desorption neural network model, the adsorption temperature control module is connected to the condensation temperature control module and the condensation equipment control module;

[0081] An adsorption device control module is used to judge the working state of the adsorption unit and control the operation of the adsorption unit. The adsorption device control module is connected to the condensation temperature control module and the condensation device control module;

[0082] The feedback regulation module is used to calculate the oil and gas recovery rate according to the oil and gas recovery amount, train each neural network model according to the oil and gas recovery rate, and adjust the judgment process of the working state of the condensing unit and the working state of the adsorption unit. The feedback regulation module is connected with the adsorption temperature control module and the adsorption equipment control module.

[0083] Specifically, the oil and gas recovery control system collects condensing unit information, adsorption unit information and oil and gas recovery volume through the information collection module, so as to control the oil and gas recovery device according to the real-time collected information later. The oil and gas recovery control system calculates the optimal condensing temperature through the condensing neural network model through the condensing temperature control module, and controls it, so as to maximize the condensing efficiency of the condensing process, thereby improving the oil and gas recovery efficiency. The oil and gas recovery control system judges the effectiveness of the optimal condensing temperature through the condensing temperature control module, and trains the neural network model to control the condensing efficiency in real time, thereby further improving the oil and gas recovery efficiency. The oil and gas recovery control system also judges the working state of the condensing unit through the condensing temperature control module, and optimizes the effectiveness judgment process of the optimal condensing temperature, so as to improve the accuracy of the effectiveness judgment of the optimal condensing temperature, thereby further improving the oil and gas recovery efficiency. The oil and gas recovery control system controls the oil and gas recovery device through the condensing equipment control module. The operation of the condensing unit is controlled so as to control the operation of the condensing unit in real time according to the working state of the condensing unit and the information of the condensing unit, so as to improve the oil and gas recovery efficiency. The oil and gas recovery control system calculates the optimal adsorption temperature and the optimal desorption temperature through the adsorption temperature control module, and controls them so as to improve the oil and gas adsorption and desorption efficiency, so as to improve the oil and gas recovery efficiency. The oil and gas recovery control system controls the operation of the adsorption unit through the adsorption equipment control module so as to improve the oil and gas adsorption and desorption efficiency, so as to improve the oil and gas recovery efficiency. The oil and gas recovery control system calculates the oil and gas recovery rate through the feedback adjustment module, and trains each neural network model according to the oil and gas recovery rate to improve the accuracy of the calculation of each neural network model, and adjusts the judgment process of the working state of the condensing unit and the working state of the adsorption unit to improve the accuracy of the judgment process of the working state of the condensing unit and the working state of the adsorption unit, so as to further improve the oil and gas recovery rate.

[0084] Specifically, the information acquisition module collects condensing unit information, adsorption unit information and oil and gas recovery amount through sensors arranged on the condensing unit, adsorption unit and oil and gas recovery device. The condensing unit information includes oil and gas condensation input flow, oil and gas condensation input temperature, oil and gas condensation output flow, condensing unit operating temperature, condensing unit operating time and condensing unit dirt accumulation. The oil and gas condensation input flow refers to the oil and gas flow to be recovered and processed for oil and gas condensation input to the condensing unit. This embodiment does not limit the collection method of the oil and gas condensation input flow, and those skilled in the art can freely set it according to actual needs, and only need to meet the real-time collection requirements of the oil and gas condensation input flow, such as setting a mass spectrometer at the inlet of the condensing unit. A flow meter is used to collect the mass flow of oil and gas to be recovered and processed entering the condensing unit in real time. The oil and gas condensation input temperature refers to the temperature of the oil and gas to be recovered and processed entering the condensing unit. This embodiment does not limit the collection method of the oil and gas condensation input temperature. Those skilled in the art can set it freely, as long as the real-time collection requirements of the oil and gas condensation input temperature are met. For example, a temperature sensor can be set at the inlet of the condensing unit, and the temperature measured by the temperature sensor in real time is used as the oil and gas condensation input temperature. The oil and gas condensation output flow refers to the mass flow of oil and gas that has been condensed and processed and discharged from the condensing unit. The information collection module collects the oil and gas condensation output flow by setting a mass flow meter at the outlet of the condensing unit. The condensing unit The working temperature refers to the ambient temperature when the condensing unit is working. This embodiment does not limit the collection method of the working temperature of the condensing unit. Those skilled in the art can set it freely, and it only needs to meet the real-time collection demand for the working temperature of the condensing unit. For example, it can be set to collect the working temperature of the condensing unit through a temperature sensor installed on the heat-insulating surface of the condensing unit. The working time of the condensing unit refers to the continuous operation time of the condensing unit. This embodiment does not limit the collection method of the working time of the condensing unit. Those skilled in the art can set it freely according to actual needs, and it only needs to meet the real-time collection demand for the working time of the condensing unit. It can be done by setting a timer on the condensing unit, turning on the timer when the condensing unit is running, and The accumulated time is taken as the working time of the condensing unit. The dirt accumulation amount of the condensing unit refers to the internal dirt accumulation amount of the condensing unit for oil and gas condensation. This embodiment does not limit the collection method of the dirt accumulation amount of the condensing unit. Those skilled in the art can freely set it as long as the real-time collection demand of the dirt accumulation amount of the condensing unit is met. A high-resolution camera or endoscope can be installed inside the condensing device to capture the image of the internal surface in real time. The captured image is analyzed by image processing technology to identify the dirt and quantify its degree and distribution. The adsorption unit information includes the oil and gas adsorption input flow, the oil and gas adsorption input temperature, the oil and gas desorption initial amount, the oil and gas desorption initial temperature and the oil and gas concentration of the adsorption unit.The oil and gas adsorption input flow rate refers to the condensed oil and gas flow rate when the oil and gas are condensed and input to the adsorption unit for adsorption. The information acquisition module collects the oil and gas adsorption input flow rate through a mass flow meter installed in the first adsorption transport pipeline and the second adsorption transport pipeline. The oil and gas adsorption input temperature refers to the condensed oil and gas temperature when the oil and gas are condensed and input to the adsorption unit for adsorption. The information acquisition module collects the oil and gas adsorption input temperature through a temperature sensor installed in the first adsorption transport pipeline and the second adsorption transport pipeline. The initial amount of oil and gas desorption refers to the initial adsorption amount of oil and gas desorbed after adsorption by the oil and gas adsorption unit. This embodiment does not limit the collection method of the initial amount of oil and gas desorption. For example, the information acquisition module collects the internal image of the adsorption unit for desorption through an image collector installed inside the desorption adsorption unit, and analyzes the image. The initial amount of oil and gas desorption is the oil and gas temperature in the adsorption unit when the oil and gas are desorbed after adsorption. The information acquisition module collects the initial temperature of oil and gas desorption through the temperature sensor installed inside the adsorption unit. The information acquisition module collects the oil and gas concentration of the adsorption unit through the concentration sensor installed inside the adsorption unit. The oil and gas recovery amount refers to the mass of the oil and gas components collected by the oil and gas recovery device after the oil and gas are condensed and adsorbed and finally desorbed. This embodiment does not limit the collection method of the oil and gas recovery amount. Those skilled in the art can set it freely as long as the collection requirements for the mass of the oil and gas components are met. For example, a mass flow meter can be set at the device inlet of the oil and gas recovery device to collect the mass of the oil and gas components recovered by the oil and gas recovery device in real time, and use it as the oil and gas recovery amount.

[0085] Specifically, the condensing equipment control module controls the operation of the condensing unit according to the working state of the condensing unit, wherein:

[0086] When the condensing unit is in a normal state, the condensing equipment control module does not control the operation of the condensing unit;

[0087] When the condensing unit is in an abnormal state, the condensing equipment control module controls the replacement of the currently running condensing unit.

[0088] Specifically, the currently operating condensing unit refers to a condensing unit that is condensing oil and gas. The present embodiment does not limit the replacement method of the currently operating condensing unit. Technical personnel in this field can freely set it according to actual needs, and only need to meet the replacement needs of the condensing unit in an abnormal state. For example, it can be set that the currently operating condensing unit is the first condensing unit, and when the first condensing unit is in an abnormal state, the first condensing transport pipeline valve and the second condensing transport pipeline valve are closed, and the second condensing unit is started, and the third condensing transport pipeline valve and the fourth condensing transport pipeline valve are opened.

[0089] Specifically, the condensing equipment control module compares the oil and gas condensing input flow Q1 of a condensing cycle with the rated oil and gas condensing input flow Qe, and controls the operation of the condensing unit according to the comparison result, wherein:

[0090] When Q1≤1.5×Qe, the condensing equipment control module determines not to control the operation of the condensing unit;

[0091] When Q1>1.5×Qe, the condensing equipment control module determines to control the operation of the condensing unit and controls the start of another condensing unit.

[0092] Specifically, the rated oil and gas condensing input flow rate refers to the maximum oil and gas capacity that a condensing unit can accommodate. The rated oil and gas condensing input flow rate is related to the properties of the condensing unit and can be obtained from the instruction manual of the condensing unit. The other condensing unit refers to another condensing unit other than the currently running condensing unit. This embodiment does not limit the control method for starting another condensing unit. Technical personnel in this field can freely set it according to actual needs. It is only necessary to meet the opening requirements of another condensing unit. For example, the currently running condensing unit can be set as the first condensing unit, the second condensing unit can be started, and the third condensing transport pipeline valve and the fourth condensing transport pipeline valve can be opened.

[0093] Specifically, the adsorption equipment control module compares the oil and gas concentration M of the adsorption unit currently performing oil and gas adsorption with the preset oil and gas concentration M0, and determines the working state of the adsorption unit according to the comparison result, wherein:

[0094] When M<M0, the adsorption equipment control module determines that the adsorption unit is in a normal state and the adsorbent has not reached saturation;

[0095] When M≥M0, the adsorption equipment control module determines that the adsorption unit is in an abnormal state and the adsorbent is saturated, and controls the adsorption unit currently performing desorption to be replaced with a desorption unit performing adsorption.

[0096] Specifically, the preset oil and gas concentration refers to the preset oil and gas concentration value indicating that the adsorbent has reached saturation, which is preset according to the type, properties, working conditions, oil and gas composition, oil and gas flow rate and design capacity of the adsorbent. This embodiment does not limit the control method for interchange between the adsorption unit currently performing desorption and the desorption unit currently performing adsorption. Those skilled in the art can set it freely as long as the interchange requirements of the desorption units are met. For example, it can be set that when the second adsorption unit is performing adsorption and the adsorbent reaches saturation, the second adsorption transport pipeline valve is closed, the eighth diversion heat recovery pipeline valve and the fourth diversion heat recovery pipeline valve are opened, the first adsorption transport pipeline valve is opened, and the seventh diversion heat recovery pipeline valve and the third diversion heat recovery pipeline valve are closed.

[0097] Specifically, the feedback regulation module calculates the oil and gas recovery rate R according to the oil and gas recovery volume V in the feedback cycle, and sets R=V / V1×100%, where V1 is the total amount of oil and gas condensation adsorption processing in the feedback cycle. The feedback regulation module compares the oil and gas recovery rate R with the preset oil and gas recovery rate R0, and determines the oil and gas recovery efficiency according to the comparison result, wherein:

[0098] When R≥R0, the feedback regulation module determines that the oil and gas recovery efficiency is high;

[0099] When R<R0, the feedback regulation module determines that the oil and gas recovery efficiency is low, and uses the oil and gas condensation input flow, oil and gas condensation input temperature and optimal condensation temperature within the feedback cycle as the training set of the condensation neural network model, the oil and gas desorption initial amount, oil and gas desorption initial temperature and optimal desorption temperature as the training set of the desorption neural network model, and the oil and gas adsorption input flow, oil and gas adsorption input temperature and optimal adsorption temperature as the training set of the adsorption neural network model, and trains each neural network model respectively. The feedback regulation module adjusts the preset condensing unit working coefficient A0, and the adjusted preset condensing unit working coefficient is Ar0, and Ar0=A0×r is set, r is the adjustment coefficient, 0.87≤r<1, preferably r=0.93, and the feedback regulation module adjusts the preset oil and gas concentration M0, and the adjusted preset oil and gas concentration is Mr0, and Mr0=M0×r is set.

[0100] Specifically, the feedback cycle refers to a preset cycle for judging the oil and gas recovery efficiency, and the total amount of oil and gas condensation adsorption treatment within the feedback cycle refers to the initial total amount of oil and gas subjected to oil and gas condensation adsorption treatment within the feedback cycle. The present embodiment does not limit the method for obtaining the total amount of oil and gas condensation adsorption treatment within the feedback cycle, and technical personnel in this field can set it freely, as long as the acquisition requirements of the total amount of oil and gas condensation adsorption treatment within the feedback cycle are met. For example, a mass flow meter can be installed in the oil and gas input pipeline to collect the real-time input flow in the oil and gas input pipeline, and the total amount of oil and gas condensation adsorption treatment within the feedback cycle is obtained as the integral within the feedback cycle. The preset oil and gas recovery rate refers to a preset value indicating low oil and gas recovery efficiency, such as 75%.

[0101] See also Figure 3 As shown, it is a schematic diagram of the structure of the condensing temperature control module of this embodiment, and the condensing temperature control module includes:

[0102] A condensing temperature control unit is used to input the oil and gas condensing input flow rate and the oil and gas condensing input temperature into the condensing neural network model to obtain the optimal condensing temperature, and control the condensing temperature of the condensing unit according to the optimal condensing temperature;

[0103] A real-time adjustment unit is used to judge the effectiveness of the optimal condensation temperature according to the oil and gas condensation input flow and the oil and gas condensation output flow, and to train the neural network model. The real-time adjustment unit is connected to the condensation temperature control unit;

[0104] The environmental optimization unit is used to judge the working state of the condensing unit according to the working temperature, working time and dirt accumulation of the condensing unit, and optimize the effectiveness judgment process of the optimal condensing temperature according to the judgment result. The environmental optimization unit is connected to the real-time adjustment unit.

[0105] Specifically, the condensing temperature control unit divides the historical condensation data into a condensing temperature training set and a condensing temperature test set, trains the condensing neural network model through the condensing temperature training set, and when the condensing neural network model meets the accuracy requirements of the condensing temperature test set, the condensing neural network model is applied to the optimal condensing temperature calculation. The condensing temperature control unit inputs the oil and gas condensation input flow and the oil and gas condensation input temperature into the condensing neural network model, and the condensing neural network model outputs the predicted condensing temperature, which is used as the optimal condensing temperature. The condensing temperature control unit controls the condensing temperature of the condensing unit to be the optimal condensing temperature.

[0106] Specifically, the historical condensation data refers to the standardized historical data of oil and gas condensation of the condensing unit, including the oil and gas condensation input flow rate, the oil and gas condensation input temperature and the optimal condensation temperature. The optimal condensation temperature refers to the condensation temperature of the condensing unit when the oil and gas condensation output flow rate is the smallest under the conditions of the same oil and gas condensation input flow rate and the oil and gas condensation input temperature. The data division refers to dividing the historical condensation data into a condensation temperature training set and a condensation temperature test set. This embodiment does not limit the data division method, and those skilled in the art can set it freely, as long as the division requirements of the condensation temperature training set and the condensation temperature test set are met. For example, it can be set to divide 80% of the historical condensation data into the condensation temperature training set in a proportional manner, and the historical condensation data into the condensation temperature training set and the condensation temperature test set. 20% of the condensation data is divided into a condensation temperature test set, the condensation temperature training set refers to a data set used to train the condensation neural network model, the condensation temperature test set refers to a data set used to test the trained condensation neural network model, and the accuracy requirement of the condensation temperature test set is satisfied. It means that the error value of the optimal condensation temperature curve obtained by inputting the trained condensation neural network model into the condensation temperature test set and the optimal condensation temperature curve obtained by the condensation neural network model during training is less than 5 degrees Celsius. This embodiment does not limit the type of condensation neural network model, and technicians in this field can set it freely, as long as the precise calculation requirements for the optimal condensation temperature are met. For example, the condensation neural network model can be set as a convolutional neural network model.

[0107] Specifically, the real-time adjustment unit calculates the oil and gas condensation amount Q according to the oil and gas condensation input flow Q1 and the oil and gas condensation output flow Q2 of a condensation cycle, sets Q=Q1-Q2, and compares the oil and gas condensation amount Q with the preset oil and gas condensation amount Q0, and judges the effectiveness of the optimal condensation temperature according to the comparison result, wherein:

[0108] When Q<Q0, the real-time adjustment unit determines that the optimal condensation temperature is effective;

[0109] When Q≥Q0, the real-time adjustment unit determines that the optimal condensing temperature is invalid, and calculates the adjustment coefficient U, setting U=0.8+3×e -[(Q-Q0)+3] , e is the base of the natural logarithm, the real-time adjustment unit adjusts the optimal condensation temperature i according to the adjustment coefficient U, the adjusted optimal condensation temperature is iu, and iu=U×i is set. The real-time adjustment unit uses the gas condensation input flow, the oil and gas condensation input temperature and the adjusted optimal condensation temperature as the data in the condensation training set to train the condensation neural network model.

[0110] Specifically, the condensation cycle refers to a preset cycle for judging the effectiveness of the optimal condensation temperature. This embodiment does not limit the specific setting of the condensation cycle, and technical personnel in this field can set it freely, but it must be greater than the shortest time for the oil and gas to undergo condensation processing. For example, the condensation cycle can be set to the total amount of oil and gas in the condensing unit divided by the condensation processing rate. The preset oil and gas condensation amount refers to the preset value of the oil and gas condensation amount that meets the minimum oil and gas condensation efficiency within a condensation cycle, such as 60%.

[0111] Specifically, the real-time adjustment unit judges the effectiveness of the optimal condensation temperature based on the amount of oil and gas condensation, calculates the adjustment coefficient when the optimal condensation temperature is invalid, adjusts the optimal condensation temperature, and updates the data in the condensation training set to facilitate actual real-time consideration of the optimal condensation temperature based on the amount of oil and gas condensation, thereby improving the accuracy of the optimal condensation temperature judgment and further improving the oil and gas condensation efficiency.

[0112] Specifically, the environmental optimization unit calculates the condensing unit working coefficient A according to the condensing unit working temperature T, working time H and dirt accumulation D, and sets A=0.2×(T / T0)+0.4×(H / H0+D / D0), where T0 is the preset condensing unit working temperature, H0 is the preset working time, and D0 is the preset dirt accumulation. The environmental optimization unit compares the condensing unit working coefficient A with the preset condensing unit working coefficient A0, and determines the working state of the condensing unit according to the comparison result, wherein:

[0113] When A≤A0, the environment optimization unit determines that the condensing unit is in a normal state;

[0114] When A>A0, the environmental optimization unit determines that the condensing unit is in an abnormal state and optimizes the preset oil and gas condensation amount Q0. The optimized preset oil and gas condensation amount is Qa0. Qa0=a×Q0 is set, and a is the optimization coefficient. In this embodiment, 1.1<a≤1.3. Preferably, the optimization coefficient a=1.21.

[0115] Specifically, the preset condensing unit operating temperature refers to a preset value of the condensing unit operating temperature indicating that the condensing unit is in an abnormal state, such as 45 degrees Celsius; the preset working time refers to a preset value of the working time indicating that the condensing unit is in an abnormal state, such as 5 years; the preset dirt accumulation amount refers to a preset value of the dirt accumulation amount indicating that the condensing unit is in an abnormal state, such as 1 cm; the preset condensing unit working coefficient refers to a preset value of the condensing unit working coefficient indicating that the condensing unit is in an abnormal state, such as A0=3.1.

[0116] Specifically, when the condensing unit is in an abnormal state, the environmental optimization unit optimizes the preset oil and gas condensation amount to avoid invalid adjustment of the optimal condensing temperature, and avoids using the data in the abnormal state as the data in the condensation training set to train the neural network model, so as to avoid affecting the accuracy of the condensation neural network model, further improve the judgment process of the optimal condensing temperature, and thus improve the oil and gas condensation efficiency.

[0117] See also Figure 4 As shown, it is a schematic diagram of the structure of the adsorption temperature control module of this embodiment, and the adsorption temperature control module includes:

[0118] An adsorption temperature control unit is used to input the oil and gas adsorption input flow rate and the oil and gas adsorption input temperature into the adsorption neural network model to obtain the optimal adsorption temperature, and control the adsorption temperature of the condensing unit according to the optimal adsorption temperature;

[0119] The desorption temperature control unit is used to input the initial amount of oil and gas desorption and the initial temperature of oil and gas desorption into the desorption neural network model to obtain the optimal desorption temperature, and control the desorption temperature of the condensing unit according to the optimal desorption temperature. The desorption temperature control unit is connected to the adsorption temperature control unit.

[0120] Specifically, the adsorption temperature control unit divides the historical adsorption data into an adsorption temperature training set and an adsorption temperature test set, trains the adsorption neural network model through the adsorption temperature training set, and when the adsorption neural network model meets the accuracy requirements of the adsorption temperature test set, the adsorption neural network model is applied to the optimal adsorption temperature calculation, the adsorption temperature control unit inputs the oil and gas adsorption input flow and the oil and gas adsorption input temperature into the adsorption neural network model, and the adsorption neural network model outputs the predicted adsorption temperature, which is used as the optimal adsorption temperature, and the adsorption temperature control unit controls the adsorption temperature of the adsorption unit to be the optimal adsorption temperature.

[0121] Specifically, the historical adsorption data refers to the historical data of oil and gas adsorption by the adsorption unit after standardization, including the oil and gas adsorption input flow, the oil and gas adsorption input temperature and the optimal adsorption temperature. The optimal adsorption temperature refers to the adsorption temperature at which the adsorption unit operates when the oil and gas adsorption output flow is minimum under the conditions of the same oil and gas adsorption input flow and oil and gas adsorption input temperature. The adsorption data division refers to dividing the historical adsorption data into an adsorption temperature training set and an adsorption temperature test set. The adsorption temperature training set refers to a data set used to train the adsorption neural network model. The adsorption temperature test set refers to a data set used to test the trained adsorption neural network model.

[0122] Specifically, the desorption temperature control unit divides historical desorption data into a desorption temperature training set and a desorption temperature test set, trains the desorption neural network model through the desorption temperature training set, and applies the desorption neural network model to the optimal desorption temperature calculation when the desorption neural network model meets the accuracy requirements of the desorption temperature test set. The desorption temperature control unit inputs the initial amount of oil and gas desorption and the initial temperature of oil and gas desorption into the desorption neural network model, and the desorption neural network model outputs a predicted desorption temperature, which is used as the optimal desorption temperature. The desorption temperature control unit controls the desorption temperature of the desorption unit to be the optimal desorption temperature.

[0123] Specifically, the historical desorption data refers to the historical data of oil and gas desorption by the desorption unit after standardization, including the initial amount of oil and gas desorption, the initial temperature of oil and gas desorption and the optimal desorption temperature. The optimal desorption temperature refers to the desorption temperature at which the desorption unit operates when the oil and gas desorption output flow rate is maximum under the conditions of the same initial amount of oil and gas desorption and the initial temperature of oil and gas desorption. The desorption data division refers to dividing the historical desorption data into a desorption temperature training set and a desorption temperature test set. The desorption temperature training set refers to a data set used to train a desorption neural network model. The desorption temperature test set refers to a data set used to test the trained desorption neural network model.

[0124] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An oil and gas recovery device combining condensation and adsorption, characterized in that: include: An oil and gas input pipeline, one end of which is used for oil and gas input, and the other end of which is far away from the oil and gas input is connected to the oil and gas condensation device group, and is used to input the oil and gas into the oil and gas recovery device for condensation and adsorption; An oil and gas condensing device group, which is connected to the oil and gas input pipeline, the oil and gas adsorption device group, the oil and gas recovery control system and the heat exchange device group, and is used to condense the oil and gas input from the oil and gas input pipeline; An oil-gas adsorption device group, which is connected to the oil-gas condensation device group, the heat exchange device group, the oil-gas recovery control system and the oil-gas recovery device group, and is used to adsorb and desorb the oil-gas after condensation treatment; An oil and gas recovery device group, which is connected to the oil and gas adsorption device group, is used to recover the oil and gas components obtained after desorption and discharge other components separated during adsorption; A heat exchange device group, which is connected to the oil-gas condensation device group and the oil-gas adsorption device group, and is used for heat exchange between the oil-gas condensation device group and the oil-gas adsorption device group; An oil and gas recovery control system, which is connected to the oil and gas condensation device group and the oil and gas adsorption device group, and is used to control the process of oil and gas condensation and oil and gas adsorption; The oil and gas recovery control system comprises: Information collection module, used to collect condensing unit information, adsorption unit information and oil and gas recovery volume in real time; A condensing temperature control module is used to calculate the optimal condensing temperature through the condensing neural network model according to the condensing unit information, and to control the condensing temperature of the condensing unit according to the optimal condensing temperature, and to judge the effectiveness of the optimal condensing temperature and train the neural network model, and to judge the working state of the condensing unit, and optimize the effectiveness judgment process of the optimal condensing temperature according to the judgment result; A condensing equipment control module, used to control the operation of the condensing unit according to the working status of the condensing unit and the condensing unit information; An adsorption temperature control module, used to calculate and control the optimal adsorption temperature through an adsorption neural network model, and also used to calculate and control the optimal desorption temperature through a desorption neural network model; The adsorption equipment control module is used to judge the working state of the adsorption unit and control the operation of the adsorption unit; A feedback adjustment module is used to calculate the oil and gas recovery rate according to the oil and gas recovery amount, train each neural network model according to the oil and gas recovery rate, and adjust the judgment process of the working state of the condensing unit and the working state of the adsorption unit; The condensing temperature control module is provided with a condensing temperature control unit for inputting the oil and gas condensing input flow and the oil and gas condensing input temperature into the condensing neural network model to obtain the optimal condensing temperature, and controlling the condensing temperature of the condensing unit according to the optimal condensing temperature; The condensing temperature control unit divides the historical condensation data into a condensing temperature training set and a condensing temperature test set, trains the condensing neural network model through the condensing temperature training set, and applies the condensing neural network model to the optimal condensing temperature calculation when the condensing neural network model meets the accuracy requirements of the condensing temperature test set. The condensing temperature control unit inputs the oil and gas condensation input flow rate and the oil and gas condensation input temperature into the condensing neural network model, and the condensing neural network model outputs the predicted condensing temperature, which is used as the optimal condensing temperature. The condensing temperature control unit controls the condensing temperature of the condensing unit to be the optimal condensing temperature. The condensing temperature control module is provided with a real-time adjustment unit for judging the effectiveness of the optimal condensing temperature according to the oil and gas condensing input flow and the oil and gas condensing output flow, and training the neural network model, and the real-time adjustment unit is connected to the condensing temperature control unit; The real-time adjustment unit calculates the oil and gas condensation amount Q according to the oil and gas condensation input flow Q1 and the oil and gas condensation output flow Q2 of a condensation cycle, sets Q=Q1-Q2, and compares the oil and gas condensation amount Q with the preset oil and gas condensation amount Q0, and judges the effectiveness of the optimal condensation temperature according to the comparison result, wherein: When Q<Q0, the real-time adjustment unit determines that the optimal condensation temperature is effective; When Q≥Q0, the real-time adjustment unit determines that the optimal condensing temperature is invalid, and calculates the adjustment coefficient U, setting U=0.8+3×e -[(Q-Q0)+3] , e is the base of the natural logarithm, the real-time adjustment unit adjusts the optimal condensation temperature i according to the adjustment coefficient U, the adjusted optimal condensation temperature is iu, iu=U×i is set, and the real-time adjustment unit uses the gas condensation input flow, the oil and gas condensation input temperature and the adjusted optimal condensation temperature as the data in the condensation training set to train the condensation neural network model; The condensing temperature control module is provided with an environment optimization unit for judging the working state of the condensing unit according to the working temperature, working time and dirt accumulation of the condensing unit, and optimizing the effectiveness judgment process of the optimal condensing temperature according to the judgment result; The environmental optimization unit calculates the condensing unit working coefficient A according to the condensing unit working temperature T, working time H and dirt accumulation D, and sets A=0.2×(T / T0)+0.4×(H / H0+D / D0), where T0 is the preset condensing unit working temperature, H0 is the preset working time, and D0 is the preset dirt accumulation. The environmental optimization unit compares the condensing unit working coefficient A with the preset condensing unit working coefficient A0, and determines the working state of the condensing unit according to the comparison result, wherein: When A≤A0, the environment optimization unit determines that the condensing unit is in a normal state; When A>A0, the environmental optimization unit determines that the condensing unit is in an abnormal state, and optimizes the preset oil and gas condensation amount Q0. The optimized preset oil and gas condensation amount is Qa0, and Qa0=a×Q0 is set, where a is the optimization coefficient.

2. The oil and gas recovery device combining condensation and adsorption according to claim 1, characterized in that: The condensing equipment control module controls the operation of the condensing unit according to the working state of the condensing unit, wherein: When the condensing unit is in a normal state, the condensing equipment control module does not control the operation of the condensing unit; When the condensing unit is in an abnormal state, the condensing equipment control module controls the replacement of the currently running condensing unit.

3. The oil and gas recovery device combining condensation and adsorption according to claim 1, characterized in that: The condensing equipment control module compares the oil and gas condensing input flow Q1 of a condensing cycle with the rated oil and gas condensing input flow Qe, and controls the operation of the condensing unit according to the comparison result, wherein: When Q1≤1.5×Qe, the condensing equipment control module determines not to control the operation of the condensing unit; When Q1>1.5×Qe, the condensing equipment control module determines to control the operation of the condensing unit and controls the start of another condensing unit.

4. The oil and gas recovery device combining condensation and adsorption according to claim 1, characterized in that: The adsorption temperature control module is provided with an adsorption temperature control unit for inputting the oil and gas adsorption input flow and the oil and gas adsorption input temperature into the adsorption neural network model to obtain the optimal adsorption temperature, and controlling the adsorption temperature of the condensing unit according to the optimal adsorption temperature; The adsorption temperature control unit divides the historical adsorption data into an adsorption temperature training set and an adsorption temperature test set, trains the adsorption neural network model through the adsorption temperature training set, and applies the adsorption neural network model to the optimal adsorption temperature calculation when the adsorption neural network model meets the accuracy requirements of the adsorption temperature test set. The adsorption temperature control unit inputs the oil and gas adsorption input flow rate and the oil and gas adsorption input temperature into the adsorption neural network model, and the adsorption neural network model outputs a predicted adsorption temperature, which is used as the optimal adsorption temperature. The adsorption temperature control unit controls the adsorption temperature of the adsorption unit to be the optimal adsorption temperature; The adsorption temperature control module is provided with a desorption temperature control unit, which is used to input the initial amount of oil and gas desorption and the initial temperature of oil and gas desorption into the desorption neural network model to obtain the optimal desorption temperature, and control the desorption temperature of the condensing unit according to the optimal desorption temperature; The desorption temperature control unit divides historical desorption data into a desorption temperature training set and a desorption temperature test set, trains a desorption neural network model through the desorption temperature training set, and applies the desorption neural network model to the calculation of the optimal desorption temperature when the desorption neural network model meets the accuracy requirement of the desorption temperature test set. The desorption temperature control unit inputs the initial amount of oil and gas desorption and the initial temperature of oil and gas desorption into the desorption neural network model, and the desorption neural network model outputs a predicted desorption temperature, which is used as the optimal desorption temperature. The desorption temperature control unit controls the desorption temperature of the desorption unit to be the optimal desorption temperature.

5. The oil and gas recovery device combining condensation and adsorption according to claim 1, characterized in that: The adsorption equipment control module compares the oil and gas concentration M of the adsorption unit currently performing oil and gas adsorption with the preset oil and gas concentration M0, and determines the working state of the adsorption unit according to the comparison result, wherein: When M<M0, the adsorption equipment control module determines that the adsorption unit is in a normal state and the adsorbent has not reached saturation; When M≥M0, the adsorption equipment control module determines that the adsorption unit is in an abnormal state and the adsorbent is saturated, and controls the adsorption unit currently performing desorption to be replaced with the adsorption unit performing adsorption, and the adsorption unit currently performing adsorption is replaced with the adsorption unit performing desorption.

6. The oil and gas recovery device combining condensation and adsorption according to claim 1, characterized in that: The feedback regulation module calculates the oil and gas recovery rate R according to the oil and gas recovery volume V in the feedback cycle, and sets R=V / V1×100%, where V1 is the total amount of oil and gas condensation adsorption processing in the feedback cycle. The feedback regulation module compares the oil and gas recovery rate R with the preset oil and gas recovery rate R0, and determines the oil and gas recovery efficiency according to the comparison result, wherein: When R≥R0, the feedback regulation module determines that the oil and gas recovery efficiency is high; When R<R0, the feedback regulation module determines that the oil and gas recovery efficiency is low, and uses the oil and gas condensation input flow, oil and gas condensation input temperature and optimal condensation temperature within the feedback cycle as the training set of the condensation neural network model, the oil and gas desorption initial amount, oil and gas desorption initial temperature and optimal desorption temperature as the training set of the desorption neural network model, and the oil and gas adsorption input flow, oil and gas adsorption input temperature and optimal adsorption temperature as the training set of the adsorption neural network model, and trains each neural network model respectively. The feedback regulation module adjusts the preset condensing unit working coefficient A0, and the adjusted preset condensing unit working coefficient is Ar0, and Ar0=A0×r is set, r is the adjustment coefficient, 0.87≤r<1, and the feedback regulation module adjusts the preset oil and gas concentration M0, and the adjusted preset oil and gas concentration is Mr0, and Mr0=M0×r is set.

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