Adsorption and desorption device for enriching coalbed methane based on slurry method

Abstract

The utility model provides an adsorption and desorption device for enriching coalbed methane based on a slurry method, relates to the technical field of coalbed methane extraction equipment, and aims to optimize the structure of a desorption tower to a certain extent and synchronously improve the desorption and adsorption efficiency. The utility model provides an adsorption and desorption device for enriching coalbed methane based on a slurry method. The adsorption and desorption device comprises a main tower mechanism and an air exhaust mechanism, the main tower mechanism comprises a first tower body and a second tower body which are not communicated with each other, a first liquid inlet is formed in the first tower body, and a second liquid inlet is formed in the second tower body; the air exhaust mechanism comprises an air exhaust component, a communication component and an on-off component, the first end of the communication component is communicated with the first tower body, the second end of the communication component is communicated with the second tower body, and the third end of the communication component is communicated with the air exhaust component; the on-off component is arranged on the communicating component and can achieve on-off of the first end of the communicating component, when the first end and the third end are conducted, the second end and the third end are blocked, and when the second end and the third end are conducted, the first end and the third end are blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of coal bed methane extraction equipment, in particular to a coal bed methane adsorption and desorption device based on a slurry method for enriching coal bed methane. Background Art

[0002] The principle of purifying low-concentration coalbed methane by the slurry method is mainly to utilize the chemical substances in the slurry to react with the methane in the low-concentration coalbed methane or to use membrane separation technology to capture the methane molecules by tiny particles in the slurry first, absorbing the methane from the gas phase into the liquid phase, thereby achieving the purification and separation of methane, while avoiding the risk of explosion caused by contact between methane and air.

[0003] At present, most methane extraction methods are to set an adsorbent in a desorption tank, pass a liquid rich in methane gas into the tank, and separate the methane from the liquid through adsorption by the adsorbent. Then, the methane gas is extracted by vacuum pumping to achieve methane extraction.

[0004] However, in this method, when methane is being adsorbed, other operations cannot be performed, and the desorption work can only be performed after the methane is completely adsorbed. Accordingly, when the desorption work is being performed, the adsorption work cannot be performed, resulting in extremely low efficiency of the methane desorption and adsorption work.

[0005] Therefore, there is an urgent need to provide a coalbed methane adsorption and desorption device based on a slurry method to enrich the coalbed methane, so as to solve the problems existing in the prior art to a certain extent. Utility Model Content

[0006] The utility model aims to provide a coalbed methane adsorption and desorption device based on a slurry method for enriching coalbed methane, so as to optimize the desorption tower structure to a certain extent and simultaneously improve the desorption and adsorption efficiencies.

[0007] The utility model provides a device for adsorption and desorption of coalbed methane enriched by a slurry method, comprising a main tower mechanism and a gas extraction mechanism; the main tower mechanism comprises a first tower body and a second tower body which are not connected to each other, the first tower body is formed with a first liquid inlet, and the second tower body is formed with a second liquid inlet; the gas extraction mechanism comprises a gas extraction component, a connecting component, and a switching component, the first end of the connecting component is connected to the first tower body, the second end of the connecting component is connected to the second tower body, and the third end of the connecting component is connected to the gas extraction component; the switching component is arranged on the connecting component, and can realize the switching of the first end of the connecting component, and when the first end is connected to the third end, the second end is blocked from the third end, and when the second end is connected to the third end, the first end is blocked from the third end.

[0008] Wherein, the main tower structure includes a desorption tank and a partition, and the partition is arranged in the desorption tank and divides the desorption tank into the first tower body and the second tower body.

[0009] Specifically, the first tower body and the second tower body each include an upper sieve plate, an adsorbent and a lower sieve plate; the upper sieve plate and the lower sieve plate both extend radially along the first tower body and the second tower body, and are relatively arranged at the upper and lower ends of the first tower body and the second tower body; the adsorbent is located between the upper sieve plate and the lower sieve plate.

[0010] Furthermore, a plurality of liquid leakage holes are distributed on the upper sieve plate and the lower sieve plate, and the plurality of liquid leakage holes on the upper sieve plate and the plurality of liquid leakage holes on the lower sieve plate are evenly distributed.

[0011] Among them, the adsorption and desorption device for enriching coalbed methane based on the slurry method provided by the utility model also includes a liquid inlet component, which is arranged corresponding to the first liquid inlet and the second liquid inlet, and the liquid inlet component includes a liquid inlet interface and a liquid outlet pipe, one end of the liquid inlet interface is located outside the desorption tank, and the other end is connected to the liquid outlet pipe, and the liquid outlet pipe is arranged along the radial direction of the desorption tank and is located on the side of the upper screen plate away from the adsorbent.

[0012] Specifically, the liquid outlet pipe is arranged in the first tower body and the second tower body along the circumference, and a plurality of liquid outlet holes are formed on the liquid outlet pipe, and the plurality of liquid outlet holes are evenly distributed on the liquid outlet pipe, and the liquid outlet holes are connected to a spray head.

[0013] Wherein, the desorption tank includes a main body, an upper cover plate, a lower cover plate and a connecting member; the upper and lower ends of the main body are formed with openings, the upper cover plate and the lower cover plate cover the openings and are connected to the main body through the connecting member, and the first end and the second end of the connecting member are connected to the upper cover plate.

[0014] Specifically, the adsorption and desorption device for enriching coalbed methane based on the slurry method provided by the utility model also includes a seal, and a seal is provided between the upper cover plate and the main body and between the lower cover plate and the main body.

[0015] Furthermore, the bottom of the desorption tank is provided with legs to support the desorption tank off the ground, and the bottom of the desorption tank corresponding to the first tower body and the second tower body are connected to drain valves.

[0016] Furthermore, the connecting component includes a plurality of connecting tubes, and the plurality of connecting tubes are spliced ​​together to form an air guide line, and the on-off component is a two-position three-way valve for controlling the on-off of the air guide line.

[0017] Compared with the prior art, the adsorption and desorption device for enriching coalbed methane based on the slurry method provided by the utility model has the following advantages:

[0018] The utility model provides a coalbed methane adsorption and desorption device based on a slurry method for enriching coal, comprising a main tower mechanism and a gas extraction mechanism; the main tower mechanism comprises a first tower body and a second tower body which are not connected to each other, the first tower body is formed with a first liquid inlet, and the second tower body is formed with a second liquid inlet; the gas extraction mechanism comprises a gas extraction component, a connecting component, and a switching component, the first end of the connecting component is connected to the first tower body, the second end of the connecting component is connected to the second tower body, and the third end of the connecting component is connected to the gas extraction component; the switching component is arranged on the connecting component, and can realize the switching of the first end of the connecting component, and when the first end is connected to the third end, the second end is blocked from the third end, and when the second end is connected to the third end, the first end is blocked from the third end.

[0019] From this analysis, it can be seen that the main tower mechanism includes a first tower body and a second tower body that are not connected to each other, and the first tower body is formed with a first liquid inlet, and the second tower body is formed with a second liquid inlet, so that methane-rich liquid can enter the first tower body and the second tower body through the first liquid inlet and the second liquid inlet for adsorption.

[0020] Since the present application also includes an air extraction mechanism, and the air extraction mechanism includes a connecting component, an air extraction component and a switching component, and the first end of the connecting component is connected to the first tower body, the second end is connected to the second tower body, and the third end is connected to the air extraction component, the switching component is arranged on the connecting component and can realize the switching between the first end and the third end and the second end and the third end.

[0021] Therefore, when the rich liquid enters the first tower body from the first liquid inlet for adsorption, the first end and the third end can be blocked by the on-off component, and accordingly, the second end and the third end are in a connected state, so that the second tower body can be vacuumed by the gas extraction component, and then the second tower body can be in a desorption state. Therefore, while the first tower body of the adsorption and desorption device for enriching coalbed methane based on the slurry method provided by the present application is adsorbing, the second tower body can perform desorption operations, thereby greatly saving operation time.

[0022] It is understandable that when the adsorption of the rich liquid in the first tower body is completed, the methane in the second tower body is also desorbed and extracted by the exhaust component. At this time, the first end and the third end are connected, and the second end and the third end are blocked by the on-off component, so that the desorption of methane in the first tower body can be achieved. Correspondingly, the rich liquid enters the second tower body through the second liquid inlet and begins to adsorb. Therefore, when the adsorption and desorption device for enriching coalbed methane based on the slurry method provided in the present application is in operation, the first tower body and the second tower body alternately perform desorption and adsorption operations, which can not only operate independently without affecting each other, but also perform different operations at the same time, which greatly improves the operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a first-view device for enriching coalbed methane based on a slurry method provided in an embodiment of the utility model;

[0025] Figure 2 A schematic structural diagram of a second perspective of a device for adsorbing and desorbing coalbed methane enriched by a slurry method provided in an embodiment of the utility model;

[0026] Figure 3 A schematic structural diagram of a liquid inlet component in a slurry-based coalbed methane enrichment adsorption and desorption device provided in an embodiment of the utility model.

[0027] In the figure: 1-desorption tank; 101-first tower body; 102-second tower body; 103-partition; 1031-sealing pad; 104-main body; 105-upper cover plate; 106-lower cover plate; 107-connecting component; 108-drain valve; 109-leg; 110-seal; 2-upper sieve plate; 3-adsorbent; 4-lower sieve plate; 5-liquid inlet assembly; 501-liquid inlet interface; 502-liquid outlet pipe; 5021-liquid outlet hole; 6-connecting component; 601-connecting pipe; 7-on-off component. DETAILED DESCRIPTION

[0028] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0029] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" 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 connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0033] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0034] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0035] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0036] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0037] like Figure 1 As shown, the utility model provides an adsorption and desorption device for enriching coalbed methane based on a slurry method, including a main tower mechanism and a gas extraction mechanism; the main tower mechanism includes a first tower body 101 and a second tower body 102 that are not connected to each other, the first tower body 101 is formed with a first liquid inlet, and the second tower body 102 is formed with a second liquid inlet; the gas extraction mechanism includes a gas extraction component, a connecting component 6, and a switching component 7, the first end of the connecting component 6 is connected to the first tower body 101, the second end of the connecting component 6 is connected to the second tower body 102, and the third end of the connecting component 6 is connected to the gas extraction component; the switching component 7 is arranged on the connecting component 6, and can realize the switching of the first end of the connecting component 6, and when the first end is connected to the third end, the second end is blocked from the third end, and when the second end is connected to the third end, the first end is blocked from the third end.

[0038] Compared with the prior art, the adsorption and desorption device for enriching coalbed methane based on the slurry method provided by the utility model has the following advantages:

[0039] The utility model provides a slurry method based coalbed methane enrichment adsorption and desorption device, which includes a first tower body 101 and a second tower body 102 that are not connected to each other through a main tower structure, and the first tower body 101 is formed with a first liquid inlet, and the second tower body 102 is formed with a second liquid inlet, so that methane-rich liquid can enter the first tower body 101 and the second tower body 102 through the first liquid inlet and the second liquid inlet for adsorption.

[0040] Since the present application also includes an air extraction mechanism, and the air extraction mechanism includes a connecting component 6, an air extraction component and a switching component 7, and the first end of the connecting component 6 is connected to the first tower body 101, the second end is connected to the second tower body 102, and the third end is connected to the air extraction component, the switching component 7 is arranged on the connecting component 6, and can realize the switching between the first end and the third end and the second end and the third end.

[0041] Therefore, when the rich liquid enters the first tower body 101 from the first liquid inlet for adsorption, the first end and the third end can be blocked by the on-off component 7, and accordingly, the second end and the third end are in a connected state, so that the second tower body 102 can be vacuumed by the gas extraction component, and then the second tower body 102 can be in a desorption state. Therefore, while the first tower body 101 of the adsorption and desorption device for enriching coalbed methane based on the slurry method provided by the present application is adsorbing, the second tower body 102 can perform a desorption operation, thereby greatly saving operation time.

[0042] It is understandable that when the adsorption of the rich liquid in the first tower body 101 is completed, the methane in the second tower body 102 is also desorbed and extracted by the gas extraction component. At this time, the first end and the third end are connected, and the second end and the third end are blocked by the on-off component 7, so that the desorption of methane in the first tower body 101 can be achieved. Correspondingly, the rich liquid enters the second tower body 102 through the second liquid inlet and begins to adsorb. Therefore, when the adsorption and desorption device for enriching coalbed methane based on the slurry method provided in the present application is in operation, the first tower body 101 and the second tower body 102 alternately perform desorption and adsorption operations, which can not only operate independently without affecting each other, but also perform different operations at the same time, which greatly improves the operating efficiency.

[0043] It should be additionally explained here that the first tower body 101 and the second tower body 102 in the present application can adopt independent desorption towers, and the two desorption towers are connected by a connecting member 6, so as to realize the synchronous alternating adsorption and desorption work.

[0044] It should be further explained here that the above-mentioned on-off component 7 in the present application can adopt a hand valve, that is, a hand valve is set between the first end and the third end, and a hand valve is set between the second end and the third end. When the first tower body 101 is required to perform adsorption, the second tower body 102 performs desorption operation, so that by closing the first hand valve and opening the second hand valve, the function of rich liquid stably entering the first tower body 101 and methane being sucked out of the second tower body 102 is achieved.

[0045] Preferably, if Figure 1 Combination Figure 2 As shown, the main tower mechanism in the present application includes a desorption tank 1 and a partition 103 . The partition 103 is disposed in the desorption tank 1 and divides the desorption tank 1 into a first tower body 101 and a second tower body 102 .

[0046] The present application adopts a partition 103 set in a desorption tank 1 to divide the internal space of a tank into a first tower body 101 and a second tower body 102, thereby reducing the space occupation of the overall equipment and improving the flexibility of device placement while ensuring the alternating operation function.

[0047] It should be added here that both ends of the partition 103 in the present application are provided with sealing gaskets 1031, so that they can cooperate with the upper cover plate 105 and the lower cover plate 106 to form a seal and ensure the sealing degree between the first tower body 101 and the second tower body 102.

[0048] It is understandable that in order to achieve adsorption and desorption operations, e.g. Figure 1 As shown, the first tower body 101 and the second tower body 102 in the present application both include an upper sieve plate 2, an adsorbent 3 and a lower sieve plate 4; the upper sieve plate 2 and the lower sieve plate 4 both extend radially of the first tower body 101 and the second tower body 102, and are relatively arranged at the upper and lower ends of the first tower body 101 and the second tower body 102; the adsorbent 3 is located between the upper sieve plate 2 and the lower sieve plate 4.

[0049] When the rich liquid enters the first tower body 101 or the second tower body 102 from the first liquid inlet or the second liquid inlet, it can flow downward evenly under the action of the upper sieve plate 2, so as to enter the adsorbent 3, and the methane in the rich liquid can be absorbed by the adsorbent 3, thereby completing the adsorption.

[0050] It can be understood that after the absorption of methane is completed, the on-off component 7 opens the corresponding connecting component 6 so that the adsorbed methane can be sucked out through the exhaust component to achieve methane desorption.

[0051] The above-mentioned lower sieve plate 4 of the present application can stably support the adsorbent 3. Accordingly, the upper sieve plate 2 can not only evenly distribute the rich liquid, but also to a certain extent prevent the particles of the liquid or adsorbent 3 from entering the connecting component 6 and being extracted, thereby ensuring the quality of the extracted methane gas.

[0052] Preferably, a plurality of leakage holes are distributed on both the upper sieve plate 2 and the lower sieve plate 4 in the present application, and the plurality of leakage holes on the upper sieve plate 2 are evenly distributed.

[0053] The leakage holes evenly distributed on the upper sieve plate 2 can achieve uniform distribution of the rich liquid, so that the adsorbent 3 can fully adsorb methane. After the adsorbed methane gas is extracted by vacuum, the lean liquid that has lost methane can flow downward through the lower sieve plate 4 and finally be discharged through the drain valve 108 set at the bottom of the desorption tank 1.

[0054] Therefore, if Figure 1 As shown, the desorption tank 1 provided in the present application is provided with supporting legs 109 at the bottom, so that the desorption tank 1 can be supported off the ground, thereby providing installation space for the drain valve 108 connected to the bottom of the desorption tank 1 corresponding to the position of the first tower body 101 and the second tower body 102.

[0055] It should be additionally explained here that the drain valve 108 in the present application can be connected to the desorption tank 1 by welding.

[0056] Alternatively, if Figure 1 Combination Figure 3 As shown, the adsorption and desorption device for enriching coalbed methane based on a slurry method provided by the utility model also includes a liquid inlet component 5, which is arranged corresponding to the first liquid inlet and the second liquid inlet, and the liquid inlet component 5 includes a liquid inlet interface 501 and a liquid outlet pipe 502, one end of the liquid inlet interface 501 is located outside the desorption tank 1, and the other end is connected to the liquid outlet pipe 502, and the liquid outlet pipe 502 is arranged along the radial direction of the desorption tank 1, and is located on the side of the upper screen plate 2 away from the adsorbent 3.

[0057] The liquid inlet assembly 5 is arranged corresponding to the first liquid inlet and the second liquid inlet, which means that there are two liquid inlet assemblies 5, and they are arranged corresponding to the first liquid inlet and the second liquid inlet.

[0058] It can be understood that the present application provides two structures for adsorption and desorption operations, namely the first tower body 101 and the second tower body 102, and in actual operation, the number of tower bodies can be further increased. Correspondingly, the number of liquid inlets will also increase, and thus the number of liquid inlet components 5 will also increase, that is, the liquid inlet components 5 in the present application are actually arranged one-to-one with the number of tower bodies, so as to realize the supply of rich liquid.

[0059] The liquid inlet assembly 5 in the present application includes a liquid inlet interface 501 and a liquid outlet pipe 502. The liquid outlet pipe 502 is all located in the corresponding first tower body 101 and the second tower body 102, and is located on the side of the upper sieve plate 2 away from the adsorbent 3, so that the rich liquid can flow to the upper sieve plate 2 to achieve uniform distribution.

[0060] like Figure 3 As shown, the liquid outlet pipe 502 in the present application is arranged along the circumference of the first tower body 101 and the second tower body 102 and inside the first tower body 101 and the second tower body 102, and a plurality of liquid outlet holes 5021 are formed on the liquid outlet pipe 502, and the plurality of liquid outlet holes 5021 are evenly distributed on the liquid outlet pipe 502, and the liquid outlet holes 5021 are connected to a spray head.

[0061] Through the evenly distributed multiple liquid outlet holes 5021, the rich liquid entering the tower body can first flow downward evenly, so that the amount of rich liquid reaching each position of the upper sieve plate 2 remains consistent to a certain extent, so that the rich liquid can be further evenly distributed through the upper sieve plate 2.

[0062] Since the liquid outlet pipe 502 in the present application is arranged along the circumferential direction of the first tower body 101 and the second tower body 102 , the rich liquid can flow onto the upper sieve plate 2 more evenly.

[0063] Preferably, the liquid outlet 5021 in the present application is also connected to a spray head, and the rich liquid can be sprayed onto the upper screen plate 2 in an atomized form through the arranged spray head. On the one hand, the uniformity of the rich liquid can be further improved. On the other hand, when the rich liquid is sprayed in an atomized form, part of the methane contained therein can evaporate quickly, thereby being able to improve the desorption efficiency to a certain extent.

[0064] It should be additionally explained here that in the present application, liquid outlet pipes 502 are evenly distributed in the first tower body 101 and the second tower body 102, and the inlets of the two liquid outlet pipes 502 can also be connected to a two-position three-way valve, so that the two liquid outlet pipes 502 can be alternately discharged through the two-position three-way valve, thereby cooperating with the first tower body 101 and the second tower body 102 to achieve the purpose of alternating desorption and adsorption operations.

[0065] Alternatively, if Figure 1 As shown, the desorption tank 1 in the present application includes a main body 104, an upper cover plate 105, a lower cover plate 106 and a connecting member 107; the upper and lower ends of the main body 104 are formed with openings, the upper cover plate 105 and the lower cover plate 106 cover the openings and are connected to the main body 104 through the connecting member 107, and the first end and the second end of the connecting member 6 are connected to the upper cover plate 105.

[0066] The connecting member 107 in the present application is a flange, through which the upper cover plate 105 and the main body 104 as well as the lower cover plate 106 and the main body 104 can be detachably connected, thereby facilitating later maintenance and replacement of the adsorbent 3.

[0067] Alternatively, if Figure 1 As shown, the adsorption and desorption device for enriching coalbed methane based on a slurry method provided by the utility model also includes a seal 110 , and a seal 110 is provided between the upper cover plate 105 and the main body 104 and between the lower cover plate 106 and the main body 104 .

[0068] The seal 110 can be used to seal the upper cover plate 105 and the lower cover plate 106 after they are connected to the main body 104, thereby preventing leakage of rich liquid and methane gas and causing environmental pollution.

[0069] Alternatively, if Figure 1 As shown in combination 2, the connecting component 6 in the present application includes multiple connecting tubes 601, and the multiple connecting tubes 601 are spliced ​​together to form an air guide pipeline. The on-off component 7 is a two-position three-way valve for controlling the on-off of the air guide pipeline.

[0070] The multiple connecting pipes 601 in the present application can be designed in quantity and style according to specific needs, and two connecting pipes 601 can be connected by flanges. The on-off component 7 in the present application adopts a two-position three-way valve to simultaneously achieve the connection between the first end and the third end and the disconnection between the second end and the third end, or the disconnection between the first end and the third end and the connection between the second end and the third end.

[0071] It is understandable that when the number of tower bodies increases, the on-off component 7 in the present application can select a three-position four-way valve, a four-position five-way valve, etc. according to the specific number.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for adsorption and desorption of coalbed methane enriched by slurry method, characterized in that: Including main tower mechanism and air extraction mechanism; The main tower mechanism comprises a first tower body and a second tower body which are not connected to each other, the first tower body is formed with a first liquid inlet, and the second tower body is formed with a second liquid inlet; The air extraction mechanism includes an air extraction component, a connecting component, and an on-off component, wherein the first end of the connecting component is connected to the first tower body, the second end of the connecting component is connected to the second tower body, and the third end of the connecting component is connected to the air extraction component; The on-off component is arranged on the connecting component and can realize the on-off of the first end of the connecting component. When the first end is connected to the third end, the second end is blocked from the third end. When the second end is connected to the third end, the first end is blocked from the third end.

2. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 1 is characterized in that: The main tower mechanism includes a desorption tank and a partition, wherein the partition is disposed in the desorption tank and divides the desorption tank into the first tower body and the second tower body.

3. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 2 is characterized in that: The first tower body and the second tower body both include an upper sieve plate, an adsorbent and a lower sieve plate; The upper sieve plate and the lower sieve plate both extend in the radial direction of the first tower body and the second tower body, and are relatively arranged at the upper and lower ends of the first tower body and the second tower body; The adsorbent is located between the upper sieve plate and the lower sieve plate.

4. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 3 is characterized in that: A plurality of liquid leakage holes are distributed on both the upper sieve plate and the lower sieve plate, and the plurality of liquid leakage holes on the upper sieve plate and the plurality of liquid leakage holes on the lower sieve plate are evenly distributed.

5. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 3 is characterized in that: It also includes a liquid inlet component, which is arranged corresponding to the first liquid inlet and the second liquid inlet, and the liquid inlet component includes a liquid inlet interface and a liquid outlet pipe, one end of the liquid inlet interface is located outside the desorption tank, and the other end is connected to the liquid outlet pipe, and the liquid outlet pipe is arranged along the radial direction of the desorption tank and is located on the side of the upper sieve plate away from the adsorbent.

6. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 5 is characterized in that: The liquid outlet pipe is arranged in the first tower body and the second tower body along the circumference of the first tower body and the second tower body, and a plurality of liquid outlet holes are formed on the liquid outlet pipe, and the plurality of liquid outlet holes are evenly distributed on the liquid outlet pipe, and the liquid outlet holes are connected to a spray head.

7. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 2 is characterized in that: The desorption tank comprises a main body, an upper cover plate, a lower cover plate and a connecting member; The upper and lower ends of the main body are both formed with openings, the upper cover plate and the lower cover plate are arranged to cover the openings and are connected to the main body through the connecting member, and the first end and the second end of the connecting member are both connected to the upper cover plate.

8. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 7 is characterized in that: It also includes a sealing member, and a sealing member is provided between the upper cover plate and the main body and between the lower cover plate and the main body.

9. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 2 is characterized in that: The bottom of the desorption tank is provided with legs to support the desorption tank off the ground, and the bottom of the desorption tank corresponding to the first tower body and the second tower body are connected with drain valves.

10. The adsorption and desorption device for enriching coalbed methane based on the slurry method according to claim 1 is characterized in that: The connecting component includes a plurality of connecting tubes, and the plurality of connecting tubes are spliced ​​together to form an air guide line. The on-off component is a two-position three-way valve, which is used to control the on-off of the air guide line.

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