A liquid spray distributor

Abstract

The utility model discloses a kind of liquid spraying distributors, including feed pipe and several distribution pipes, the distribution pipe is fixedly connected on feed pipe, several distribution holes are distributed in the feed pipe, the feed pipe is communicated with distribution pipe by distribution hole;Flow equalizing plate is fixedly connected in the feed pipe, the extension direction of flow equalizing plate is consistent with the extension direction of feed pipe;The flow equalizing plate paddle feed pipe is divided into inflow cavity, flow equalizing cavity, reflux cavity, material flow flows into the import of feed pipe in order, and then flows through inflow cavity, flow equalizing cavity, reflux cavity;The import opening of feed pipe is greater than the import of inflow cavity;The utility model passes through in feed pipe make-up flow equalizing plate, so that material flow is stable, balance the internal flow velocity and pressure of feed pipe, improve the uniformity of distribution;The utility model can inject constant-temperature gas to heat preservation cavity by air inlet pipe, keep the temperature in feed pipe, improve the stability of material quality.

Description

Technical Field

[0001] This utility model relates to the field of distributors, specifically to a liquid spray distributor. Background Technology

[0002] N-Vinylpyrrolidone (NVP) is a high-value-added fine chemical product. Its distillation purification process requires strict temperature control (boiling point approximately 202°C). Liquid spray distributors are used in its distillation purification process. The core function of liquid spray distributors is to efficiently and uniformly disperse the input liquid into a specific form (mist, column, film, etc.). Existing liquid spray distributors experience internal flow rate and pressure imbalances during use, resulting in pressure and flow rate differences when distributing the liquid, ultimately leading to uneven distribution. Utility Model Content

[0003] The purpose of this invention is to provide a liquid spraying distributor in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A liquid spraying distributor includes an inlet pipe and several distribution pipes, wherein the distribution pipes are fixedly connected to the inlet pipe, and several distribution holes are distributed inside the inlet pipe, and the inlet pipe is interconnected with the distribution pipes through the distribution holes; A flow equalization plate is fixedly connected inside the feed pipe, and the extension direction of the flow equalization plate is consistent with the extension direction of the feed pipe. The flow equalization plate paddle feed pipe is divided into an inlet chamber, a flow equalization chamber, and a return chamber. The material flows in from the inlet of the feed pipe and then flows through the inlet chamber, the flow equalization chamber, and the return chamber in sequence. The inlet opening of the feed pipe is larger than the inlet of the flow chamber.

[0005] Furthermore, the inlet of the inlet cavity is smaller than the outlet of the inlet cavity.

[0006] Furthermore, the flow equalization plate includes a flow-guiding section, a flow-guiding section, and a diffusion section. The flow-guiding section is a plate-shaped structure extending from the bottom of the feed pipe toward the center of the feed pipe so that the inlet opening of the feed pipe is larger than the inlet of the inlet cavity. The flow-guiding section is a plate-shaped structure. The flow-guiding section is connected to the diffusion section through the flow-guiding section. The diffusion section is a plate-shaped structure extending from the tail of the flow-guiding section toward the bottom of the feed pipe so that the inlet of the inlet cavity is smaller than the outlet of the inlet cavity.

[0007] Furthermore, the drainage section, the flow guide section, and the diffusion section are an integral structure.

[0008] Furthermore, the connection between the flow-inducing part and the flow-guiding part, as well as the connection between the flow-guiding part and the diffuser part, are smoothly transitioned.

[0009] Furthermore, the diffuser portion is an arc-shaped plate as a whole, and the tail end of the diffuser portion is rounded.

[0010] Furthermore, the inner corners of the feed pipe are all rounded.

[0011] Furthermore, the feed pipe has a hollow structure, including an outer wall and an inner wall. The outer wall and the inner wall are separated to form a heat insulation cavity. An air inlet pipe and an air outlet pipe communicating with the heat insulation cavity are fixedly connected to the outer wall.

[0012] The beneficial effects are: This invention stabilizes material flow by simulating a flow equalization plate in the feed pipe, balancing the internal flow velocity and pressure of the feed pipe, and improving the uniformity of distribution. This invention also allows for the injection of constant-temperature gas into the insulation cavity through the air inlet pipe, maintaining the temperature inside the feed pipe and improving the stability of material quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a diagram showing the internal structure of the feed pipe of this utility model; Figure 3 This is a schematic diagram of the flow equalization plate structure of this utility model; Figure 4 For the present utility model Figure 2 Enlarged view of point A.

[0015] The reference numerals in the attached drawings are explained as follows: 1. Feed pipe; 11. Outer wall; 12. Inner wall; 13. Insulation cavity; 14. Distribution hole; 15. Connecting flange; 16. Air inlet pipe; 2. Distribution pipe; 3. Flow equalization plate; 31. Flow guide; 32. Flow guide; 33. Diffusion; 41. Inlet cavity; 42. Flow equalization cavity; 43. Return cavity. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] See Figures 1-4 As shown, this utility model provides a liquid spraying distributor, which includes an inlet pipe 1 and several distribution pipes 2. The inlet pipe 1 and the distribution pipes 2 are made of stainless steel, and the inner wall 12 is polished to prevent material adhesion. The inlet of the inlet pipe 1 is connected to the raw material tank through a connecting flange 15. The distribution pipes 2 are fixedly connected to the inlet pipe 1. Several distribution holes 14 are distributed inside the inlet pipe 1. The inlet pipe 1 is interconnected with the distribution pipes 2 through the distribution holes 14. The connection between the inlet pipe 1 and the distribution pipes 2 is rounded. After the raw material enters the inlet pipe 1, it flows into the distribution pipes 2 through the distribution holes 14 and then flows out from the bottom of the distribution pipes 2 to complete the distribution process.

[0018] In this embodiment, in order to eliminate the uneven local flow velocity and pressure caused by the feeding impact, a flow equalization plate 3 is fixedly connected inside the feeding pipe 1. The feeding pipe 1 is a straight pipe, and the extension direction of the flow equalization plate 3 is consistent with the extension direction of the feeding pipe 1. The inlet opening of the feeding pipe 1 is larger than the inlet of the inlet cavity 41. After the flow equalization plate 3 is installed and fixed, the flow equalization plate 3 divides the feeding pipe 1 into the inlet cavity 41, the flow equalization cavity 42, and the return cavity 43. The material flows in from the inlet of the feeding pipe 1 and flows through the inlet cavity 41, the flow equalization cavity 42, and the return cavity 43 in sequence. Due to the effect of the flow equalization plate 3, when the raw material flows in the feeding pipe 1, the material can flow from the center of the feeding pipe 1 to both sides, equalize the internal flow velocity and pressure of the feeding pipe 1, and improve the uniformity of distribution.

[0019] In this embodiment, in order to reduce the liquid impact velocity, the inlet of the inlet cavity 41 is smaller than the outlet of the inlet cavity 41, so that the end of the flow equalization plate 3 is diffused and the material flow rate at the end of the flow equalization plate 3 is reduced.

[0020] In this embodiment, in order to achieve a balanced flow plate 3, the flow plate 3 is designed as follows: the flow plate 3 includes a flow-inducing part 31, a flow-guiding part 32, and a diffusion part 33. The flow-inducing part 31 is a plate-shaped structure extending from the bottom of the feed pipe 1 towards the center of the feed pipe 1 so that the inlet opening of the feed pipe 1 is larger than the inlet of the inlet cavity 41. The flow-guiding part 32 is a plate-shaped structure. The flow-inducing part 31 is connected to the diffusion part 33 through the flow-guiding part 32. The diffusion part 33 is a plate-shaped structure extending from the tail of the flow-guiding part 32 towards the bottom of the feed pipe 1 so that the inlet of the inlet cavity 41 is smaller than the outlet of the inlet cavity 41.

[0021] In this embodiment, to ensure smooth material flow, the inlet section 31, the guide section 32, and the diffuser section 33 are integrated into a single structure. The connections between the inlet section 31 and the guide section 32, and between the guide section 32 and the diffuser section 33, are smoothly transitioned. The diffuser section 33 is an arc-shaped plate, with its tail end rounded; all corners of the inner wall 12 of the feed pipe 1 are also rounded.

[0022] In this embodiment, in order to ensure the temperature during material flow, the wall of the feed pipe 1 is hollow, including an outer wall 11 and an inner wall 12. The outer wall 11 and the inner wall 12 are separated to form a heat preservation cavity 13. An air inlet pipe 16 and an air outlet pipe communicating with the heat preservation cavity 13 are fixedly connected to the outer wall 11. Constant temperature gas is injected into the heat preservation cavity 13 through the air inlet pipe 16 to maintain the temperature inside the feed pipe 1 and improve the stability of material quality.

[0023] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A liquid spray distributor, characterized in that: It includes a feed pipe and several distribution pipes, the distribution pipes are fixedly connected to the feed pipe, and several distribution holes are distributed inside the feed pipe. The feed pipe is interconnected with the distribution pipes through the distribution holes. A flow equalization plate is fixedly connected inside the feed pipe, and the extension direction of the flow equalization plate is consistent with the extension direction of the feed pipe. The flow equalization plate paddle feed pipe is divided into an inlet chamber, a flow equalization chamber, and a return chamber. The material flows in from the inlet of the feed pipe and then flows through the inlet chamber, the flow equalization chamber, and the return chamber in sequence. The inlet opening of the feed pipe is larger than the inlet of the flow chamber.

2. The liquid spray distributor according to claim 1, characterized in that: The inlet of the inlet cavity is smaller than the outlet of the inlet cavity.

3. The liquid spray distributor according to claim 2, characterized in that: The flow equalization plate includes a flow guiding section, a flow diffusing section, and a flow diffusing section. The flow guiding section is a plate-shaped structure extending from the bottom of the feed pipe toward the center of the feed pipe so that the inlet opening of the feed pipe is larger than the inlet of the flow inlet cavity. The flow diffusing section is a plate-shaped structure. The flow guiding section is connected to the flow diffusing section through the flow diffusing section. The flow diffusing section is a plate-shaped structure extending from the tail of the flow diffusing section toward the bottom of the feed pipe so that the inlet of the flow inlet cavity is smaller than the outlet of the flow inlet cavity.

4. The liquid spray distributor according to claim 3, characterized in that: The drainage section, the flow guide section, and the diffusion section are an integral structure.

5. The liquid spray distributor according to claim 4, characterized in that: The connection between the flow-inducing part and the flow-guiding part, as well as the connection between the flow-guiding part and the diffuser part, are smoothly transitioned.

6. The liquid spray distributor according to claim 5, characterized in that: The diffuser section is an arc-shaped plate, and the tail end of the diffuser section is rounded.

7. The liquid spraying distributor according to any one of claims 1-6, characterized in that: All corners of the inner wall of the feed pipe are rounded.

8. The liquid spraying distributor according to any one of claims 1-6, characterized in that: The feed pipe has a hollow structure, including an outer wall and an inner wall. The outer wall and the inner wall are separated to form a heat insulation cavity. An air inlet pipe and an air outlet pipe that communicate with the heat insulation cavity are fixedly connected to the outer wall.

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