A post-cooler for a membrane separation nitrogen generator used in coal mines

Abstract

The utility model discloses a kind of membrane separation nitrogen generator rear coolers for coal mine, comprising: cooling mechanism, is equipped with multiple groups, multiple cooling mechanism is all arranged in conveying channel, for improving the contact area of gas and prolonging the contact time with gas;Guide plate, is equipped with multiple groups, the guide plate is arranged at the bottom of cooling mechanism, for gas guiding when flowing in shell;The utility model passes through the setting of cooling mechanism, so that gas can only be conveyed in conveying channel after heat exchange through cooling mechanism, can improve the contact area of gas, so that gas can more fully heat exchange with cooling mechanism;At the same time, the contact time of gas and cooling mechanism is lengthened, further enhance the effect of heat exchange, effectively improve the heat exchange efficiency of gas, improve the overall performance and working efficiency of nitrogen generator, also avoid the security risk caused by gas cooling not in time.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to an aftercooler for a membrane separation nitrogen generator used in coal mines. Background Technology

[0002] In coal mining, membrane nitrogen generators play a crucial role in providing nitrogen to ensure safe production. The aftercooler in a coal mine membrane nitrogen generator is an important component, its function being to cool the high-temperature gas generated during nitrogen production.

[0003] However, the existing aftercoolers for membrane separation nitrogen generators used in coal mines have significant shortcomings. The contact area between the heat exchange tubes and the gas is small, which results in insufficient heat exchange with the gas and a significant reduction in the heat exchange effect. This not only affects the overall performance and efficiency of the nitrogen generator, but may also lead to safety hazards due to untimely gas cooling. Therefore, we need to propose an aftercooler for membrane separation nitrogen generators used in coal mines. Utility Model Content

[0004] The purpose of this utility model is to provide an aftercooler for a membrane separation nitrogen generator used in coal mines, which increases the contact area with the gas and extends the contact time between the gas and the cooling mechanism, further enhancing the heat exchange effect, effectively improving the heat exchange efficiency of the gas, and avoiding the safety hazards caused by untimely gas cooling, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A postcooler for a membrane separation nitrogen generator used in coal mines includes: a base with a housing fixedly installed on its top, multiple sets of partitions fixedly installed inside the housing, and a conveying channel separated by the partitions inside the housing; multiple cooling mechanisms, all located within the conveying channels, for increasing the contact area with the gas and extending the contact time with the gas; and multiple guide plates, located at the bottom of the cooling mechanisms, for guiding the gas as it flows within the housing.

[0007] Preferably, the cooling mechanism includes a first cooling base, a first heat exchange tube, and a second cooling base;

[0008] The first cooling seat and the second cooling seat are each provided in two sets. The two sets of first cooling seats are respectively located on both sides of the two sets of second cooling seats. The first cooling seat is fixedly installed on the second cooling seat. Multiple sets of first heat exchange tubes for heat exchange are connected to the two sets of first cooling seats. A first cooling chamber is opened in one set of first cooling seats, and a drain chamber is opened in the other set of first cooling seats. The first cooling chamber is connected to the drain chamber through the first heat exchange tube.

[0009] Both sets of the second cooling bases are provided with a second cooling cavity. The bottom of both sets of the second cooling bases is fixedly connected with multiple sets of heat-conducting plates for heat exchange. The upper ends of the multiple sets of heat-conducting plates extend into the second cooling cavity.

[0010] Preferably, the sides of both the first and second cooling seats are in contact with the inner wall of the conveying channel.

[0011] Preferably, the bottom of each of the multiple sets of heat-conducting sheets is in contact with the top of the guide plate, and a heat exchange channel is left between adjacent heat-conducting sheets for heat exchange when gas passes through.

[0012] Preferably, a second water supply pipe is connected to the top of one set of first cooling seats, and a second drain pipe is connected to another set of first cooling seats, the lower end of which is connected to the set of first cooling seats below it.

[0013] Preferably, the top of each of the two sets of second cooling seats is connected to a first water supply pipe, and the bottom of each set is connected to a first drain pipe, with the lower end of the first drain pipe connected to the second cooling seat below it.

[0014] Preferably, the guide plate has an outlet for gas to pass through, and the first drain pipe is located inside the outlet.

[0015] Preferably, an inlet pipe is fixedly installed on the top of the base, and both the first water delivery pipe and the second water delivery pipe are connected to the inlet pipe;

[0016] The base is fixedly installed with a drain pipe, and the first drain pipe and the second drain pipe on the cooling mechanism at the bottom are both connected to the drain pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention, through the design of a cooling mechanism, ensures that gas can only be transported within the conveying channel after heat exchange through the cooling mechanism. This increases the contact area with the gas, allowing for more thorough heat exchange between the gas and the cooling mechanism. Simultaneously, it extends the contact time between the gas and the cooling mechanism, further enhancing the heat exchange effect and effectively improving the heat exchange efficiency of the gas. This improves the overall performance and working efficiency of the nitrogen generator and avoids safety hazards caused by untimely gas cooling. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0020] Figure 2 This is the second structural schematic diagram of the present invention;

[0021] Figure 3 This is one of the structural schematic diagrams of a half-section of this utility model;

[0022] Figure 4 This is the second half-sectional structural schematic diagram of this utility model;

[0023] Figure 5 This is one of the structural schematic diagrams of the cooling mechanism of this utility model;

[0024] Figure 6 This is the second schematic diagram of the cooling mechanism of this utility model;

[0025] Figure 7 This is the second schematic diagram of the cooling mechanism of this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the guide plate and heat-conducting sheet of this utility model.

[0027] In the diagram: 1. Base; 2. Shell; 3. Partition; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Air inlet pipe; 7. Air outlet pipe; 8. Cooling mechanism; 81. First cooling seat; 82. First cooling chamber; 83. First heat exchange tube; 84. Liquid outlet chamber; 85. Second cooling chamber; 86. Second cooling seat; 87. Heat-conducting plate; 9. First water delivery pipe; 10. Second water delivery pipe; 11. First drain pipe; 12. Second drain pipe; 13. Guide plate; 14. Air outlet; 15. Second heat exchange tube. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-8 This utility model provides a technical solution:

[0030] A postcooler for a membrane separation nitrogen generator used in coal mines includes: a base 1, on which a housing 2 is fixedly installed, and multiple sets of partitions 3 are fixedly installed inside the housing 2, with conveying channels separated by the partitions 3 inside the housing 2; multiple cooling mechanisms 8, all located within the conveying channels, for increasing the contact area with the gas and extending the contact time with the gas; and multiple guide plates 13, located at the bottom of the cooling mechanisms 8, for guiding the gas as it flows within the housing 2.

[0031] It should be noted that one side of the base 1 is connected to the air inlet pipe 6, and the other side of the base 1 is connected to the air outlet pipe 7. After the gas enters the conveying channel through the air inlet pipe 6, it is heat-exchanged and conveyed in the conveying channel and then discharged through the air outlet pipe 7.

[0032] In an optional embodiment: such as Figures 3 to 7 As shown, the cooling mechanism 8 includes a first cooling base 81, a first heat exchange tube 83, and a second cooling base 86;

[0033] Both the first cooling seat 81 and the second cooling seat 86 are provided in two sets. The two sets of first cooling seats 81 are respectively located on both sides of the two sets of second cooling seats 86. The first cooling seat 81 is fixedly installed on the second cooling seat 86. Multiple sets of first heat exchange tubes 83 for heat exchange are connected to the two sets of first cooling seats 81. A first cooling chamber 82 is opened in one set of first cooling seats 81, and a drain chamber 84 is opened in the other set of first cooling seats 81. The first cooling chamber 82 is connected to the drain chamber 84 through the first heat exchange tubes 83.

[0034] Each of the two sets of second cooling seats 86 has a second cooling chamber 85. The bottom of each of the two sets of second cooling seats 86 is fixedly connected to multiple sets of heat-conducting fins 87 for heat exchange. The upper ends of the multiple sets of heat-conducting fins 87 extend into the second cooling chamber 85.

[0035] The bottom of multiple sets of heat-conducting plates 87 are in contact with the top of the guide plate 13, and heat exchange channels are left between adjacent heat-conducting plates 87 for heat exchange when gas passes through.

[0036] It should be noted that, through the setting of the first heat exchange tube 83, when the cooling water is transported through the first heat exchange tube 83, the gas exchanges heat through the first heat exchange tube 83, and when the gas after heat exchange enters the heat exchange channel, it exchanges heat again through the heat-conducting plate 87, thereby improving the heat exchange effect of the gas.

[0037] In an optional embodiment: such as Figure 3 and Figure 4 As shown, the sides of both the first cooling seat 81 and the second cooling seat 86 are in contact with the inner wall of the conveying channel.

[0038] It should be noted that since the sides of both the first cooling seat 81 and the second cooling seat 86 are in contact with the inner wall of the conveying channel, the gas can only be conveyed within the conveying channel, preventing the gas from leaking out through the gap between the first cooling seat 81, the second cooling seat 86 and the inner wall of the conveying channel.

[0039] In an optional embodiment: such as Figures 5 to 7 As shown, a second water supply pipe 10 is connected to the top of a set of first cooling seats 81, and a second drain pipe 12 is connected to another set of first cooling seats 81. The lower end of the second drain pipe 12 is connected to a set of first cooling seats 81 below it.

[0040] It should be noted that the drain chamber 84 in the first cooling seat 81 is connected to the first cooling chamber 82 in the first cooling seat 81 of the cooling mechanism 8 below it, so that cooling water can flow in multiple sets of cooling mechanisms 8 through the second water delivery pipe 10, the first cooling chamber 82, the first heat exchange pipe 83, the drain chamber 84 and the second drain pipe 12.

[0041] In an optional embodiment: such as Figures 5 to 7 As shown, the top of each of the two sets of second cooling seats 86 is connected to a first water supply pipe 9, and the bottom of each is connected to a first drain pipe 11. The lower end of the first drain pipe 11 is connected to the second cooling seat 86 below it.

[0042] It should be noted that the second cooling chamber 85 in the second cooling seat 86 is connected to the second cooling chamber 85 in the second cooling seat 86 of the cooling mechanism 8 below it, so that cooling water can flow in multiple sets of cooling mechanisms 8 through the first water supply pipe 9, the second cooling chamber 85 and the first drain pipe 11. When the cooling water flows in the second cooling chamber 85, it cools and exchanges heat on the heat-conducting plate 87, so that the gas exchanges heat when it flows through the heat exchange channel between adjacent heat-conducting plates 87, thereby increasing the contact area of ​​the gas and extending the contact time between the gas and the cooling mechanism, so that the gas can exchange heat with the cooling mechanism more fully.

[0043] Additionally, the guide plate 13 blocks the gas entering the heat exchange channel, ensuring that the gas can only be transported through the heat exchange channel.

[0044] In an optional embodiment: such as Figures 6 to 8 As shown, the guide plate 13 has an outlet 14 for gas to pass through, and the first drain pipe 11 is located inside the outlet 14.

[0045] It should be noted that after the gas is heated through the heat exchange channel and discharged through the outlet 14, it enters the next cooling mechanism 8 for further heat exchange, and the gas temperature is reduced after multiple heat exchanges.

[0046] In an optional embodiment: such as Figures 1 to 3 As shown, an inlet pipe 4 is fixedly installed on the top of the base 1, and the first water delivery pipe 9 and the second water delivery pipe 10 are both connected to the inlet pipe 4.

[0047] A drain pipe 5 is fixedly installed inside the base 1. The first drain pipe 11 and the second drain pipe 12 located on the lowest cooling mechanism 8 are both connected to the drain pipe 5.

[0048] It should be noted that multiple sets of second heat exchange tubes 15 are connected to the liquid inlet pipe 4 and the liquid outlet pipe 5. All sets of second heat exchange tubes 15 are located in the conveying channel. When the cooling water conveyed through the liquid inlet pipe 4 is conveyed into the cooling mechanism 8 through the first conveying water pipe 9 and the second conveying water pipe 10 to exchange heat with the gas passing through the cooling mechanism 8, the cooling water is conveyed to the liquid outlet pipe 5 through the second heat exchange tubes 15. When the cooling water is conveyed through the second heat exchange tubes 15, it exchanges heat with the gas passing through.

[0049] In an optional embodiment: such as Figure 2 As shown, a condensate drain pipe is provided on the side of 1, and a valve is provided on the condensate drain pipe.

[0050] It should be noted that after the condensate generated during gas heat exchange falls into the conveying channel and collects, it can be discharged through the condensate drain pipe by opening the valve.

[0051] The usage process of this utility model is as follows: Cooling water enters the cooling mechanism 8 through the liquid inlet pipe 4, the first water delivery pipe 9 and the second water delivery pipe 10. After being transported in multiple cooling mechanisms 8, the cooling water is transported to the drain pipe 5 through the first drain pipe 11 and the second drain pipe 12 on the lowest cooling mechanism 8 and discharged. The cooling water in the liquid inlet pipe 4 enters the drain pipe 5 through the second heat exchange pipe 15 and is discharged.

[0052] The gas is transported to the transport channel through the inlet pipe 6. When the gas is transported in the transport channel, it exchanges heat when it passes through the first heat exchange pipe 83. After the heat exchange, the gas enters the heat exchange channel and exchanges heat again through the heat-conducting plate 87. After the gas exchanges heat through the heat exchange channel, it is discharged through the outlet 14 and enters the next cooling mechanism 8 for heat exchange. After multiple heat exchanges, the gas temperature is reduced. In addition, when the gas passes through the second heat exchange pipe 15, it exchanges heat with the gas. After the heat exchange, the air is discharged through the outlet pipe 7.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A postcooler for a membrane separation nitrogen generator used in coal mines, characterized in that, include: A base (1) has a housing (2) fixedly installed on its top. Multiple sets of partitions (3) are fixedly installed inside the housing (2). The housing (2) is divided into conveying channels by the partitions (3). The cooling mechanism (8) is provided in multiple sets, and all sets of the cooling mechanism (8) are located in the conveying channel to increase the contact area with the gas and extend the contact time with the gas. The guide plate (13) is provided in multiple sets. The guide plate (13) is located at the bottom of the cooling mechanism (8) and is used to guide the gas when it flows in the housing (2).

2. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 1, characterized in that: The cooling mechanism (8) includes a first cooling base (81), a first heat exchange tube (83), and a second cooling base (86); The first cooling seat (81) and the second cooling seat (86) are each provided in two sets. The two sets of first cooling seats (81) are respectively provided on both sides of the two sets of second cooling seats (86). The first cooling seat (81) is fixedly installed on the second cooling seat (86). Multiple sets of first heat exchange tubes (83) for heat exchange are connected to the two sets of first cooling seats (81). A first cooling chamber (82) is opened in one set of first cooling seats (81), and a drain chamber (84) is opened in the other set of first cooling seats (81). The first cooling chamber (82) is connected to the drain chamber (84) through the first heat exchange tube (83). Both sets of the second cooling bases (86) have a second cooling chamber (85) inside. The bottom of both sets of the second cooling bases (86) is fixedly connected to multiple sets of heat-conducting plates (87) for heat exchange. The upper ends of the multiple sets of heat-conducting plates (87) extend into the second cooling chamber (85).

3. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 2, characterized in that: The sides of both the first cooling seat (81) and the second cooling seat (86) are in contact with the inner wall of the conveying channel.

4. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 2, characterized in that: The bottom of each of the multiple sets of heat-conducting plates (87) is in contact with the top of the guide plate (13), and a heat exchange channel is left between adjacent heat-conducting plates (87) for heat exchange when gas passes through.

5. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 2, characterized in that: A second water supply pipe (10) is connected to the top of one set of first cooling seats (81), and a second drain pipe (12) is connected to another set of first cooling seats (81). The lower end of the second drain pipe (12) is connected to the first cooling seat (81) below it.

6. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 5, characterized in that: The top of each of the two sets of second cooling seats (86) is connected to a first water supply pipe (9), and the bottom of each is connected to a first drain pipe (11). The lower end of the first drain pipe (11) is connected to the second cooling seat (86) below it.

7. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 6, characterized in that: The guide plate (13) is provided with an air outlet (14) for gas to pass through, and the first drain pipe (11) is located inside the air outlet (14).

8. The aftercooler for a membrane separation nitrogen generator in a coal mine according to claim 6, characterized in that: The base (1) is fixedly installed with an inlet pipe (4), and the first water delivery pipe (9) and the second water delivery pipe (10) are both connected to the inlet pipe (4); The base (1) is fixedly installed with a drain pipe (5), and the first drain pipe (11) and the second drain pipe (12) on the lowest cooling mechanism (8) are both connected to the drain pipe (5).

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