Distributor

Abstract

The utility model provides a distributor and belongs to the technical field of distributors. The distributor solves the problem that the distribution of fluid flowing out of an existing distributor is not uniform enough. The distributor comprises a first gas inlet pipe, a second gas inlet pipe and a plurality of gas outlet pipes, all the gas outlet pipes are parallel to one another and are arranged at equal intervals, the gas outlet end of the first gas inlet pipe is communicated with the middle of the second gas inlet pipe in the length direction, and the second gas inlet pipe is communicated with the middle of all the gas outlet pipes in the length direction. A plurality of air outlet needle tubes are arranged on each air outlet pipe at equal intervals, all the air outlet needle tubes are arranged in a criss-cross linear grid shape, and the distances between the air outlet needle tubes and the adjacent air outlet needle tubes in the longitudinal direction and the transverse direction are the same. The distributor has the advantage that fluid flowing out of the distributor is uniformly distributed.

Description

Technical Field

[0001] The utility model belongs to the technical field of distributors and relates to distributors. Background Art

[0002] The distributor in the heat exchanger is a key component. Its main function is to ensure that the fluid is evenly distributed inside the heat exchanger, thereby improving the heat transfer efficiency and the overall performance of the equipment.

[0003] Existing distributors, for example, Chinese patent literature discloses a gas distributor and a system including the gas distributor [patent number: 201810293832.5; application publication number: CN108261988B], which includes an annular gas distribution pipe, a gas distribution box located in the ring of the annular gas distribution pipe, and an air intake pipe connected to the gas distribution pipe and the gas distribution box respectively; the air intake pipe is connected to the gas distribution pipe and the gas distribution box respectively through at least two air intake branches, so as to achieve the fixation of the gas distribution pipe and the gas distribution box and the air intake; the surfaces of the gas distribution pipe and the gas distribution box are provided with air holes.

[0004] The distributor of this structure takes in air through the air inlet pipe, transports the gas to the distribution pipe and the distribution box, and finally flows out through the air holes. The distribution box is located in the middle of the distribution pipe ring, and there is a distance between the distribution box and the distribution pipe. The distance between two adjacent air holes located in the inner circle of the distribution pipe is smaller than the distance between two adjacent air holes located in the outer circle of the distribution pipe. The distance between two adjacent air holes in the distribution box is also different, which leads to uneven distribution of the fluid flowing out of the air holes, thereby reducing the performance of the heat exchanger. Summary of the invention

[0005] The utility model aims at the above problems existing in the prior art, proposes a distributor, and solves the technical problem of how to make the fluid flowing out of the distributor evenly distributed.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a distributor, comprising a first air inlet pipe, characterized in that it also comprises a second air inlet pipe and a plurality of air outlet pipes, all of the air outlet pipes are parallel to each other and arranged at equal intervals, the air outlet end of the first air inlet pipe is connected to the middle of the length direction of the second air inlet pipe, the second air inlet pipe is connected to the middle of the length direction of all the air outlet pipes, each of the air outlet pipes is provided with a plurality of air outlet needle tubes at equal intervals, all of the air outlet needle tubes are arranged in a criss-cross straight line grid, and the air outlet needle tubes are at the same distance from adjacent air outlet needle tubes in the longitudinal and transverse directions.

[0007] The fluid in the first air inlet pipe is transported to the middle of the second air inlet pipe in the length direction, and then flows toward the two ends of the second air inlet pipe. In this process, the fluid in the second air inlet pipe flows to the middle of the air outlet pipe, and then flows toward the two ends of the air outlet pipe, making the flow of the fluid more stable and uniform, and making the fluid flowing out of the air outlet needle tube stable and uniform. All the air outlet needle tubes are arranged in a criss-cross straight grid shape, and the distances between the air outlet needle tubes and the adjacent air outlet needle tubes in the longitudinal and transverse directions are the same, that is, all the air outlet needle tubes are evenly distributed, so that the fluid flowing out of the air outlet needle tubes flows evenly to the inside of the device, and the fluid flowing out of the distributor is evenly distributed, thereby improving the performance of the device.

[0008] In the above distributor, the outlet pipe is provided with a plurality of connection holes at equal intervals, one end of the outlet needle is inserted into the connection hole, and the outlet needle is threadedly connected to the outlet pipe. The threaded connection avoids deformation caused by welding, and the outlet needle can also be removed for replacement and cleaning.

[0009] In the above distributor, the length of the outlet needle tube is smaller than the inner diameter of the outlet tube. This structure makes the overall structure of the distributor compact, occupies a small space, and ensures the strength of the distributor.

[0010] In the above distributor, the flow cross-sectional area of ​​the outlet needle tube is 1 / 200-1 / 50 of the flow cross-sectional area of ​​the outlet pipe. This structure makes the distributor suitable for equipment that requires a small flow of liquid or gas.

[0011] In the above distributor, the length of the outlet pipes at both sides is shorter than the length of the outlet pipe at the middle. This structure enables the distributor to be installed in a circular cylinder.

[0012] In the above distributor, the cross section of the air outlet pipe is square, and the corners of the square are rounded.

[0013] As another aspect, in the above distributor, the cross section of the air outlet pipe is circular.

[0014] In the above distributor, the first air inlet pipe includes a plurality of first air inlet branches, all of which are parallel to each other and arranged at equal intervals, the second air inlet pipe includes a plurality of second air inlet branches, all of which are arranged in a straight line, and all of the air outlet pipes are divided into a plurality of groups, and the first air inlet branches, the second air inlet branches and a group of the air outlet pipes are arranged one by one. This structure can shorten the distance that the fluid flows through, so that the flow rate and flow velocity of the fluid flowing out of each air outlet needle tube are as consistent as possible, so that the fluid flowing out of the distributor is evenly distributed.

[0015] Compared with the prior art, the distributor provided by the utility model has the following advantages:

[0016] 1. All the outlet needle tubes of the distributor are arranged in a criss-cross straight grid shape, and the distances between the outlet needle tubes and the adjacent outlet needle tubes in the longitudinal and transverse directions are the same, that is, all the outlet needle tubes are evenly distributed, so that the fluid flowing out of the outlet needle tubes flows evenly to the inside of the equipment, and the fluid flowing out of the distributor is evenly distributed, thereby improving the performance of the equipment.

[0017] 2. The first air inlet pipe and the second air inlet pipe of the distributor are both multi-section types, so that the flow rate and flow velocity of the fluid flowing to each air outlet needle tube are as consistent as possible, so that the fluid flowing out of the distributor is evenly distributed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the distributor.

[0019] Figure 2 It is a schematic diagram of the connection structure of the air outlet pipe and the air outlet needle tube of the distributor.

[0020] Figure 3 It is a cross-sectional view of the air outlet pipe and the air outlet needle tube of the distributor.

[0021] In the figure, 1, first air inlet pipe; 11, first air inlet branch pipe; 2, second air inlet pipe; 21, second air inlet branch pipe; 3, air outlet pipe; 4, air outlet needle tube; 5, connecting hole. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] Embodiment 1

[0024] like Figure 1 As shown, the distributor includes a first air inlet pipe 1, a second air inlet pipe 2, an air outlet pipe 3 and an air outlet needle tube 4.

[0025] In this embodiment, the first air intake pipe 1 includes three first air intake branch pipes 11, and all the first air intake branch pipes 11 are parallel to each other and are arranged at equal intervals. The second air intake pipe 2 includes three second air intake branch pipes 21, and all the second air intake branch pipes 21 are arranged in a straight line. The number of outlet pipes 3 is twelve, and all the outlet pipes 3 are parallel to each other and are arranged at equal intervals. The length of the outlet pipes 3 on both sides is shorter than the length of the outlet pipe 3 in the middle. The twelve outlet pipes 3 are divided into three groups, and the first air intake branch pipes 11, the second air intake branch pipes 21 and a group of outlet pipes 3 are arranged in a one-to-one correspondence. In actual production, the number of first air intake branch pipes 11 can be two or four, the number of second air intake branch pipes 21 can be two or four, the number of outlet pipes 3 is eight or sixteen, and the outlet pipes 3 are divided into two groups or four groups.

[0026] The outlet end of the first air inlet pipe 1 is connected to the middle of the length of the second air inlet pipe 2, and the second air inlet pipe 2 is connected to the middle of the length of all the air outlet pipes 3. The cross section of the air outlet pipe 3 is square, and the corners of the square are rounded. In this embodiment, Figure 2 , Figure 3 As shown, eleven air outlet needle tubes 4 are evenly spaced on each air outlet pipe 3, eleven connecting holes 5 are evenly spaced on the air outlet pipe 3, one end of the air outlet needle tube 4 is inserted into the connecting hole 5, and the air outlet needle tube 4 is threadedly fixed to the air outlet pipe 3. In actual production, eight or sixteen air outlet needle tubes 4 are evenly spaced on each air outlet pipe 3, and eight or sixteen connecting holes 5 are evenly spaced on the air outlet pipe 3. All the air outlet needle tubes 4 are arranged in a criss-crossed straight grid, and the distances between the air outlet needle tubes 4 and the adjacent air outlet needle tubes 4 in the longitudinal and transverse directions are the same. The length of the air outlet needle tube 4 is less than the inner diameter of the air outlet pipe 3. In this embodiment, the flow cross-sectional area of ​​the air outlet needle tube 4 is 1 / 125 of the flow cross-sectional area of ​​the air outlet pipe 3. In actual production, the flow cross-sectional area of ​​the air outlet needle tube 4 is 1 / 200 or 1 / 50 of the flow cross-sectional area of ​​the air outlet pipe 3.

[0027] During operation, the fluid enters the second air inlet pipe 2 through the first air inlet pipe 1, then enters the air outlet pipe 3 through the second air inlet pipe 2, and finally flows from the air outlet needle tube 4 to the inside of the device.

[0028] Embodiment 2

[0029] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that, in this embodiment, the cross section of the air outlet pipe 3 is circular.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0031] Although the terms such as first air inlet pipe 1, first air inlet branch pipe 11, second air inlet pipe 2, second air inlet branch pipe 21, air outlet pipe 3, air outlet needle pipe 4, connecting hole 5 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A distributor, comprising a first air inlet pipe (1), characterized in that: It also comprises a second air inlet pipe (2) and a plurality of air outlet pipes (3), all of the air outlet pipes (3) are parallel to each other and are arranged at equal intervals, the air outlet end of the first air inlet pipe (1) is connected to the middle of the length direction of the second air inlet pipe (2), the second air inlet pipe (2) is connected to the middle of the length direction of all the air outlet pipes (3), each of the air outlet pipes (3) is evenly spaced and provided with a plurality of air outlet needle tubes (4), all of the air outlet needle tubes (4) are arranged in a criss-cross straight line grid, and the distances between the air outlet needle tubes (4) and adjacent air outlet needle tubes (4) in the longitudinal and transverse directions are the same.

2. The distributor according to claim 1, characterized in that A plurality of connection holes (5) are arranged at equal intervals on the air outlet pipe (3), one end of the air outlet needle tube (4) is inserted into the connection hole (5), and the air outlet needle tube (4) is threadedly fixedly connected to the air outlet pipe (3).

3. The distributor according to claim 1 or 2, characterized in that The length of the air outlet needle tube (4) is smaller than the inner diameter of the air outlet tube (3).

4. The distributor according to claim 1 or 2, characterized in that: The flow cross-sectional area of ​​the air outlet needle tube (4) is 1 / 200-1 / 50 of the flow cross-sectional area of ​​the air outlet tube (3).

5. The distributor according to claim 1 or 2, characterized in that: The lengths of the air outlet pipes (3) located at the two sides are shorter than the length of the air outlet pipe (3) located in the middle.

6. The distributor according to claim 1 or 2, characterized in that: The cross section of the air outlet pipe (3) is square, and the corners of the square are rounded.

7. The distributor according to claim 1 or 2, characterized in that: The cross section of the air outlet pipe (3) is circular.

8. The distributor according to claim 1 or 2, characterized in that: The first air intake pipe (1) comprises a plurality of first air intake branch pipes (11), all of which are parallel to each other and arranged at equal intervals; the second air intake pipe (2) comprises a plurality of second air intake branch pipes (21), all of which are arranged in a straight line; and all of the air outlet pipes (3) are divided into a plurality of groups, and the first air intake branch pipes (11), the second air intake branch pipes (21) and a group of the air outlet pipes (3) are arranged in a one-to-one correspondence.

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