Air inlet device

Abstract

The air inlet device comprises an air inlet tower and an air blower, the air inlet tower comprises a tower body and a tower cover, the bottom of the tower cover is fixedly connected with the top of the tower body, communicated cavities are formed in the tower body and the tower cover, an air outlet is formed in the bottom of the tower body, and the outer diameter of the tower cover is larger than that of the tower body. An air inlet is formed in the outer diameter part, exceeding the tower body, of the bottom of the tower cover and fixedly connected with a filter screen, an air supply port is formed in the side wall of the tower body, and the air inlet tower can effectively prevent rainwater from entering the tower body through the air inlet formed in the outer diameter part, exceeding the tower body, of the bottom of the tower cover; the air inlet is fixedly connected with the filter screen, dust and impurities in the air can be effectively filtered out, the proportion of oxygen in the air is increased by reducing moisture and impurities, the combustion-supporting effect is improved, and the high-temperature effect is more remarkable.

Description

Technical Field

[0001] The utility model relates to the technical field of producing hydrogen from natural gas, in particular to an air intake device. Background Art

[0002] The natural gas hydrogen production system is a system that decomposes natural gas into hydrogen by passing natural gas into a hydrogen production furnace and heating it. The hydrogen production furnace needs to inhale air to provide oxygen for heating the fuel gas. For example, the authorization announcement number is CN215112727U, and the name is a plate-type air preheater for a hydrogen production converter, a fixed mounting seat, a support column and a mounting top plate. Mounting grooves are provided at both ends of the upper surface of the fixed mounting seat, an air preheater body is provided in the middle of the upper end of the fixed mounting seat, fixing bolts are provided at equal intervals in the middle of the movable column, and a telescopic spring is fixedly connected to the upper end of the movable column. A mounting top plate is provided at the upper end of the air preheater body, cleaning ports are provided at both ends of the mounting top plate, and a dust cleaning groove is provided at the edge of the upper surface of the mounting top plate. The plate-type air preheater for the hydrogen production converter is convenient for cleaning dust on the top block to avoid dust accumulation, and dust falling on the air preheater body affects use.

[0003] However, the outside air contains moisture (rain), dust or other impurities, resulting in a low proportion of oxygen in the outside air, making the instantaneous high temperature effect in the furnace not significant enough. In addition, the outside air contains humidity and impurities, which will reduce the combustion effect. The long-term accumulation of impurities can easily block the air inlet, making it difficult for the outside air to enter smoothly, and ultimately further reducing the high temperature effect. Utility Model Content

[0004] The utility model aims to overcome the above technical deficiencies and propose an air intake device to solve the technical problem in the prior art that humidity and impurities contained in the outside air will reduce the high temperature effect in the furnace.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, the utility model provides an air intake device, comprising:

[0007] The air intake tower comprises a tower body and a tower cover, the bottom of the tower cover is connected to the tower body

[0008] The top is fixedly connected, a communicating cavity is provided in the tower body and the tower cover, an air outlet is provided at the bottom of the tower body, the outer diameter of the tower cover is larger than the outer diameter of the tower body, an air inlet is provided at the bottom of the tower cover exceeding the outer diameter of the tower body, the air outlet and the air inlet are both communicated with the cavity, and a filter is fixedly connected to the air inlet;

[0009] A blower is provided with an air supply port on the side wall of the tower body, and the blower is connected to the air supply port.

[0010] In some embodiments, the air inlet is provided with a support rod, and both ends of the support rod are fixedly connected to the tower body and the tower cover respectively.

[0011] In some embodiments, the number of the air supply ports is two, the number of the blowers is two, the two blowers are respectively connected to the two air supply ports, and the blowers correspond to the air supply ports one by one.

[0012] In some embodiments, a first lifting lug is fixedly connected to the top of the tower cover.

[0013] In some embodiments, the top of the tower cover is in an inverted cone shape.

[0014] In some embodiments, a side wall of the tower body is provided with an inspection opening.

[0015] In some embodiments, a pressure sensor is installed on the side wall of the tower body.

[0016] In some embodiments, the blower is externally covered with a waterproof cover.

[0017] In some embodiments, it also includes an inspection bracket, the bottom of which is fixedly connected to the ground, a connecting rod is provided in the middle of the inspection bracket, and both ends of the connecting rod are respectively fixedly connected to the side wall of the inspection bracket and the side wall of the air intake tower.

[0018] In some embodiments, a second lifting ear is installed on the top of the maintenance bracket.

[0019] In a second aspect, the utility model also provides an air intake device,

[0020] Compared with the prior art, the utility model provides an air intake device, in which an air intake is opened through the bottom of the tower cover beyond the outer diameter of the tower body, so that the air intake tower can effectively prevent the entry of rainwater and reduce the humidity of the air; and a filter is fixedly connected to the air intake, which can effectively filter out dust and impurities in the air and improve the quality of the air. It can be seen that the utility model increases the proportion of oxygen in the air by reducing moisture and impurities, thereby improving the combustion-supporting effect and making the high-temperature effect more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of an air intake device provided by an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 Structural schematic diagram of the middle air intake tower;

[0023] Figure 3 yes Figure 2 A top view of

[0024] Figure 4 yes Figure 3 Sectional view of AA.

[0025] Explanation of the reference numerals: 1. air inlet tower; 11. tower body; 111. air outlet; 112. air supply port; 113. maintenance port; 114. pressure sensor; 12. tower cover; 121. air inlet; 122. filter; 123. first lifting ear; 13. cavity; 14. support rod; 2. blower; 21. waterproof cover 21; 3. maintenance bracket; 31. connecting rod; 32. second lifting ear. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In order to solve the technical problem that humidity and impurities contained in the outside air will reduce the high temperature effect in the furnace, the utility model provides an air intake device, which can improve the quality of air and reduce the energy consumption of the air supply system.

[0028] It should be noted that the air intake device described in the utility model is used for but not limited to hydrogen production from natural gas. For the convenience of explanation, in the utility model, only an air intake device applied to hydrogen production from natural gas is used as an example for explanation. The principle of applying an air intake device to other types of equipment is essentially the same as the principle applied to hydrogen production from natural gas, and will not be described in detail here.

[0029] See also Figure 1 - Figure 4 ,in Figure 1 This is a structural schematic diagram of an air intake device in an embodiment of the utility model, an air intake device includes an air intake tower 1 and a blower 2, the air intake tower 1 includes a tower body 11 and a tower cover 12, the bottom of the tower cover 12 is fixedly connected to the top of the tower body 11, the tower body 11 and the tower cover 12 are provided with a communicating cavity 13, the bottom of the tower body 11 is provided with an air outlet 111, the outer diameter of the tower cover 12 is greater than the outer diameter of the tower body 11, the bottom of the tower cover 12 exceeds the outer diameter of the tower body 11 The part of the tower body 11 The air outlet 111 and the air inlet 121 are both connected to the cavity 13, and the air inlet 121 is fixedly connected to a filter 122, the side wall of the tower body 11 is provided with an air supply port 112, and the blower 2 is connected to the air supply port 112.

[0030] In the present embodiment, an air inlet 121 is provided through the bottom of the tower cover 12 which exceeds the outer diameter of the tower body 11, so that the air inlet tower 1 can effectively prevent the entry of rainwater and reduce the humidity of the air; and a filter 122 is fixedly connected to the air inlet 121, which can effectively filter out dust and impurities in the air and improve the quality of the air. It can be seen that the utility model increases the proportion of oxygen in the air by reducing moisture and impurities, thereby improving the combustion-supporting effect and making the high-temperature effect more significant.

[0031] First, the blower 2 is started, so that the cavity 13 is in a negative pressure state; then, the outside air enters the cavity 13 from the air inlet 121 through the filter 122 and moves downward along with the cavity 13; finally, the air in the cavity 13 is discharged from the air outlet 111 and enters the next process.

[0032] Furthermore, a reinforcing rib is fixedly connected to the bottom end of the tower body 11, so that the tower body 11 is more stable.

[0033] Furthermore, a communication pipe is provided between the blower 2 and the air supply port 112 , and the negative pressure generated by the blower 2 is transmitted to the cavity 13 through the communication pipe.

[0034] Furthermore, the filter 122 is detachably connected to the air inlet 121 , so that the staff can easily replace or clean the filter 122 .

[0035] In one embodiment, see Figure 2 The air inlet 121 is provided with a support rod 14, and both ends of the support rod 14 are fixedly connected to the tower body 11 and the tower cover 12 respectively.

[0036] In this embodiment, the number of support rods 14 is more than two, and each support rod 14 is distributed along the circumferential direction of the cross section of the tower body 11, and a filter screen 122 is installed between every two adjacent support rods 14. The support rods 14 fix the tower cover 12 so that the air inlet 121 is connected to the cavity 13.

[0037] It should be noted that the top of the tower body 11 has no connection with the tower cover 12 and is only connected via a number of support rods 14 . This structure enables outside air to pass through the air inlet 121 and enter the tower cover 12 without being blocked by any structure, thereby ensuring that more air enters the cavity 13 .

[0038] In one embodiment, see Figure 1 and Figure 4 There are two air supply ports 112 and two blowers 2 . The two blowers 2 are connected to the two air supply ports 112 respectively, and the blowers 2 correspond to the air supply ports 112 one by one.

[0039] In this embodiment, two air supply ports 112 are arranged relative to the tower body 11 , and one of the two blowers 2 is used as a spare.

[0040] In one embodiment, see Figure 3 A first lifting lug 123 is fixedly connected to the top of the tower cover 12 .

[0041] In this embodiment, the function of the first lifting ear 123 is to facilitate the lifting of the air intake tower 1 by the lifting equipment through the connection with the first lifting ear 123. At the same time, there are more than two first lifting ears 123, and each first lifting ear 123 is evenly spaced along the circumferential direction of the cross-section of the tower cover 12, so that the lifting process is more stable.

[0042] In one embodiment, see Figure 1 The top of the tower cover 12 is in an inverted cone shape.

[0043] In this embodiment, the inverted cone-shaped tower cover 12 can effectively prevent water from accumulating on the top of the tower cover 12 .

[0044] In one embodiment, see Figure 2 A maintenance opening 113 is provided on the side wall of the tower body 11 .

[0045] In this embodiment, the function of the inspection port 113 is to facilitate maintenance personnel to enter the tower body 11 through the inspection port 113 to perform maintenance work. The inspection port 113 is also equipped with an inspection door, and a sealing ring is provided between the inspection port 113 and the inspection door. When the air intake tower 1 operates normally, the inspection door blocks the inspection port 113, so that the tower body 11 is in a sealed state, which is convenient for air transportation.

[0046] In one embodiment, see Figure 2 A pressure sensor 114 is installed on the side wall of the tower body 11.

[0047] In this embodiment, the function of the pressure sensor 114 is to monitor the air pressure inside the tower body 11 in real time, so as to facilitate the staff to check and ensure that the air pressure inside the tower body 11 is in a relatively stable state in real time.

[0048] In one embodiment, see Figure 1 The outer cover of the blower 2 is provided with a waterproof cover 21.

[0049] In this embodiment, the waterproof cover 21 is used to prevent rain from causing adverse effects on the blower 2 .

[0050] In one embodiment, see Figure 1 , and also includes an inspection bracket 3, the bottom of the inspection bracket 3 is fixedly connected to the ground, a connecting rod 31 is provided in the middle of the inspection bracket 3, and both ends of the connecting rod 31 are fixedly connected to the side wall of the inspection bracket 3 and the side wall of the air intake tower 1 respectively.

[0051] In this embodiment, the function of the connecting rod 31 is to make the maintenance bracket 3 more stable, and the function of the maintenance bracket 3 is to assist other equipment to lift the air intake tower 1, thereby facilitating the internal maintenance work of the air intake tower 1.

[0052] In one embodiment, see Figure 1 A second lifting ear 32 is installed on the top of the maintenance bracket 3.

[0053] In this embodiment, the top of the maintenance bracket 3 is bent just above the tower cover 12, and the second lifting ear 32 is matched with the first lifting ear 123 through a chain. A chain is connected between the second lifting ear 32 and each first lifting ear 123, and then the chain on the second lifting ear 32 is rolled up by a chain winding machine, so that each chain moves upward, thereby driving the tower cover 12 to rise, making it convenient for the staff to inspect the inside of the air intake tower 1.

[0054] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0055] First, any blower 2 is started, so that the cavity 13 is in a negative pressure state, and the staff monitors the pressure change of the air in the tower body 11 through the pressure sensor 114; then, the outside air enters the cavity 13 through the filter 122 from the air inlet 121 and moves downward with the cavity 13; finally, the air in the cavity 13 is discharged from the air outlet 111 and enters the next process. The utility model increases the proportion of oxygen in the air by reducing moisture and impurities, thereby improving the combustion-supporting effect and making the high-temperature effect more significant.

[0056] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An air intake device, characterized in that: include: The air intake tower comprises a tower body and a tower cover, the bottom of the tower cover is connected to the tower body The top is fixedly connected, a communicating cavity is provided in the tower body and the tower cover, an air outlet is provided at the bottom of the tower body, the outer diameter of the tower cover is larger than the outer diameter of the tower body, an air inlet is provided at the bottom of the tower cover exceeding the outer diameter of the tower body, the air outlet and the air inlet are both communicated with the cavity, and a filter is fixedly connected to the air inlet; A blower is provided with an air supply port on the side wall of the tower body, and the blower is connected to the air supply port.

2. An air intake device according to claim 1, characterized in that: The air inlet is provided with a support rod, and the two ends of the support rod are respectively fixedly connected to the tower body and the tower cover.

3. An air intake device according to claim 1, characterized in that: The number of the air supply ports is two, the number of the blowers is two, the two blowers are respectively connected to the two air supply ports, and the blowers correspond to the air supply ports one by one.

4. An air intake device according to claim 1, characterized in that: The top of the tower cover is fixedly connected with a first lifting lug.

5. The air intake device according to claim 1, characterized in that: The top of the tower cover is in an inverted cone shape.

6. An air intake device according to claim 1, characterized in that: A maintenance opening is provided on the side wall of the tower body.

7. An air intake device according to claim 1, characterized in that: A pressure sensor is installed on the side wall of the tower body.

8. An air intake device according to claim 1, characterized in that: The outer sleeve of the blower is provided with a waterproof cover.

9. An air intake device according to claim 1, characterized in that: It also includes an inspection bracket, the bottom of which is fixedly connected to the ground, a connecting rod is provided in the middle of the inspection bracket, and both ends of the connecting rod are respectively fixedly connected to the side wall of the inspection bracket and the side wall of the air intake tower.

10. An air intake device according to claim 9, characterized in that: A second lifting lug is installed on the top of the maintenance bracket.

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