Novel three-roller planetary rolling mill tube cooler

Abstract

The utility model discloses a novel three-roller planetary rolling mill tube cooler which comprises an inlet water seal assembly arranged on a rolling mill cover. The cooling pipe is arranged on the inlet water seal assembly; the water return water seal assembly is arranged on the cooling pipe, and the water outlet pipe is arranged on the water return water seal assembly. Compared with the prior art, the cooling pipe has the advantages that the multiple contraction sections are arranged in the cooling pipe, the flow speed of water flow is increased when the water flow passes through the contraction sections, turbulent flow is formed after the water flow passes through the contraction sections, and therefore impact is generated on a gas layer on the surface of the copper pipe, effective contact between cooling water and the surface of the copper pipe is enhanced, and the cooling efficiency of through-water cooling is improved; 2, the contraction section in the cooling pipe is used for supporting the copper pipe, so that the copper pipe is prevented from being scraped with a cooling system; cooling water enters from the water inlet pipes of the inlet water seal assembly and the reverse water seal assembly and flows out from the water outlet pipe, the cooling pipe is filled with the cooling water, and oxygen is prevented from entering the cooling pipe.

Description

Technical Field

[0001] This utility model relates to the field of copper tube rolling technology, and in particular to a novel three-roll planetary mill tube cooler. Background Technology

[0002] In the production of seamless copper tubes for air conditioning and communication cables, planetary rolling technology and three-roll planetary rolling mill equipment are commonly used. When rolling copper tubes with a three-roll planetary rolling mill, the copper tubes are at a high temperature and need to enter a cooling system for cooling after exiting the rolls.

[0003] Currently, most three-roll planetary rolling mill cooling systems are double-layer cooling systems, consisting of interconnected inner and outer cooling sleeves. The inner cooling sleeve includes an inlet water seal assembly, an inner cooling tube, an outlet water seal assembly, and an outlet guide sleeve. Both the front and rear water seal assemblies have inlet pipes, and the upper part of the inner cooling tube has an outlet hole. The outer cooling sleeve is fitted over the inner cooling sleeve, and the bottom of the outer cooling sleeve has an outlet hole. The principle of this cooling system is that the cooling tubes are filled with cooling water to prevent air from entering and thus preventing copper tube oxidation. The copper tubes are cooled as they pass through the cooling tubes.

[0004] Production practice has revealed that cooling water rapidly vaporizes upon contact with the copper pipe surface, forming a gas layer that hinders cooling and severely impacts the cooling effect. This also results in significant oxidation on the copper pipe surface. Furthermore, the inner cooling tube is typically made of hard stainless steel, and when the copper pipe passes through it, the bent portion easily scrapes against the inner wall of the water tank, causing surface damage. In severe cases, this can lead to product scrap, affecting both product quality and yield.

[0005] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a novel three-roll planetary mill tube cooler to address the aforementioned shortcomings and defects of the existing technology.

[0007] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0008] A novel three-roll planetary mill tube cooler, characterized in that it comprises:

[0009] An inlet water seal assembly installed on the mill cover for the entry of copper pipes and cooling water;

[0010] A cooling pipe installed on the inlet water seal assembly and used to create turbulent flow of cooling water;

[0011] A backwater seal assembly installed on the cooling pipe for the entry of copper pipe and cooling water, and

[0012] The water outlet pipe is installed on the backwater seal assembly.

[0013] In a preferred embodiment of the present invention, the inlet water seal assembly includes an inlet water seal housing, an inlet water seal nozzle disposed on the inlet water seal housing, and an inlet adjusting nut disposed between the inlet water seal housing and the inlet water seal nozzle. Inlet water seal inlet pipes are symmetrically disposed on both sides of the inlet water seal housing.

[0014] In a preferred embodiment of this utility model, one end of the inlet water seal guide nozzle is an outer conical surface, the other end of the inlet water seal guide nozzle is a flared guide structure for the copper tube to enter, one end of the inlet adjusting nut is an inner conical surface with the same angle as the outer conical surface, and the other end of the inlet adjusting nut is a threaded surface that is threadedly connected to the inlet water seal housing.

[0015] In a preferred embodiment of this utility model, the inlet adjusting nut is provided with a positioning surface that mates with the outer diameter surface of the inlet water seal guide nozzle, and the positioning surface is provided with a water inlet hole for cooling water to enter.

[0016] In a preferred embodiment of the present invention, a first adjustable water gap is formed between the inner conical surface and the outer conical surface for cooling water to pass through. The first adjustable water gap is inclined towards the cooling pipe, and the jet direction of the first adjustable water gap is at an angle of 30 degrees to the horizontal line.

[0017] In a preferred embodiment of the present invention, the cooling pipe includes a cooling pipe housing disposed behind the inlet water seal housing and a plurality of contraction sections disposed on the inner wall of the cooling pipe housing, wherein the inner diameter of the plurality of contraction sections is smaller than the inner diameter of the inlet water seal nozzle.

[0018] In a preferred embodiment of the present invention, the backwater seal assembly includes a backwater seal housing disposed behind the cooling pipe housing, a backwater inlet nozzle disposed on the backwater seal housing, and a backwater adjusting nut disposed on the backwater seal housing. Backwater seal inlet pipes are symmetrically disposed on both sides of the backwater seal housing.

[0019] In a preferred embodiment of this utility model, one end of the backwater inlet guide is an outer conical surface, the other end of the backwater inlet guide is a flared guide structure for the copper tube to enter, one end of the backwater adjusting nut is an inner conical surface with the same angle as the outer conical surface, and the other end of the backwater adjusting nut is a threaded surface that is threadedly connected to the backwater water seal shell.

[0020] In a preferred embodiment of the present invention, a second adjustable water gap is formed between the inner conical surface and the outer conical surface for cooling water to pass through. The second adjustable water gap is inclined towards the cooling pipe, and the jet direction of the second adjustable water gap is at an angle of 60 degrees to the horizontal line.

[0021] In a preferred embodiment of the present invention, the water outlet pipe includes a water outlet pipe housing disposed behind the backwater seal housing and a guide sleeve disposed on the inner wall of the water outlet pipe housing.

[0022] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model has several contraction sections inside the cooling pipe. When the water flows through these contraction sections, the flow velocity increases and turbulence is formed after the contraction section, thereby impacting the gas layer on the surface of the copper pipe, strengthening the effective contact between the cooling water and the surface of the copper pipe, and improving the cooling efficiency of water cooling.

[0024] 2. The contraction section in the cooling pipe of this utility model is used to support the copper pipe and prevent the copper pipe from scratching the cooling system;

[0025] 3. In this invention, cooling water enters from the inlet pipe of the inlet water seal assembly and the backflow water seal assembly, and flows out from the outlet pipe. The cooling pipe is filled with cooling water, preventing oxygen from entering the cooling pipe. Attached Figure Description

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a structural schematic diagram of the inlet water seal component of this utility model.

[0029] Figure 3 This is a schematic diagram of the structure of the cooling pipe of this utility model.

[0030] Figure 4 This is a schematic diagram of the structure of the anti-water seal component of this utility model. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0032] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0033] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] See Figures 1 to 4 The novel three-roll planetary mill tube cooler shown includes an inlet water seal assembly 100, a cooling pipe 200, a backflow water seal assembly 300, and an outlet water pipe 400.

[0035] The inlet water seal assembly 100 is installed on the mill cover and is used to allow copper pipes and cooling water to enter. In this embodiment, there are two inlet water seal assemblies 100, which are arranged symmetrically.

[0036] The cooling pipe 200 is installed on the inlet water seal assembly 100 and is used to create turbulent flow of cooling water. In this embodiment, the cooling pipe 200 is arranged behind the inlet water seal assembly 100, and the middle part of the cooling pipe 200 is a cavity structure for the copper pipe and cooling water to pass through.

[0037] The backwater seal assembly 300 is installed on the cooling pipe 200 and is used to allow copper pipe and cooling water to enter. In this embodiment, there are two backwater seal assemblies 300, and the two backwater seal assemblies 300 are arranged symmetrically.

[0038] The water outlet pipe 400 is installed on the backwater seal assembly 300. In this embodiment, the middle part of the water outlet pipe 400 is also a cavity structure to discharge copper pipe and cooling water.

[0039] The inlet water seal assembly 100 includes an inlet water seal housing 110, an inlet water seal guide nozzle 120 disposed on the inlet water seal housing 110, and an inlet adjusting nut 130 disposed between the inlet water seal housing 110 and the inlet water seal guide nozzle 120. Inlet water seal inlet pipes 140 are symmetrically arranged on both sides of the inlet water seal housing 110. In this embodiment, one end of the inlet water seal guide nozzle 120 is an outer conical surface 120a, and the other end is a flared guide structure 120b for the copper pipe to enter. One end of the inlet adjusting nut 130 is an inner conical surface 130a with the same angle as the outer conical surface 120a, and the other end is a threaded surface 130b that is threadedly connected to the inlet water seal housing 110. The inlet adjusting nut 130 is provided with a positioning surface 131 that mates with the outer diameter surface of the inlet water seal guide nozzle 120, and the positioning surface 131 is provided with an inlet hole 131a for cooling water to enter.

[0040] A first adjustable water gap 10 is formed between the inner conical surface 130a and the outer conical surface 120a to allow cooling water to pass through. The first adjustable water gap 10 is inclined towards the cooling pipe 200, and the jet direction of the first adjustable water gap 10 makes an angle of 30 degrees with the horizontal line. When cooling water enters the inlet water seal assembly 100 through the inlet water seal inlet pipe 140, it passes through the inlet hole 131a and sprays out from the first adjustable water gap 10 into the cooling pipe 200.

[0041] The cooling pipe 200 includes a cooling pipe housing 210 disposed behind the inlet water seal housing 110 and several contraction sections 220 disposed on the inner wall of the cooling pipe housing 210. The inner diameter of the contraction sections 220 is smaller than the inner diameter of the inlet water seal nozzle 120. In this embodiment, there are four contraction sections 220. The four contraction sections can change the water flow velocity, forming turbulence and improving the cooling effect of the copper pipe. At the same time, the four contraction sections are made of materials with a lower hardness than the copper pipe to avoid damage to the copper pipe.

[0042] The backflow prevention water seal assembly 300 includes a backflow prevention water seal housing 310 disposed behind the cooling pipe housing 110, a backflow prevention inlet nozzle 320 disposed on the backflow prevention water seal housing 310, and a backflow prevention adjusting nut 330 disposed on the backflow prevention water seal housing 310. Backflow prevention water seal inlet pipes 340 are symmetrically arranged on both sides of the backflow prevention water seal housing 310. In this embodiment, one end of the backflow prevention inlet nozzle 320 has an outer conical surface 320a, and the other end of the backflow prevention inlet nozzle 320 has a flared guide structure 320b for the copper pipe to enter. One end of the backflow prevention adjusting nut 330 has an inner conical surface 330a with the same angle as the outer conical surface 320a, and the other end of the backflow prevention adjusting nut 330 has a threaded surface 330b that is threadedly connected to the backflow prevention water seal housing 310.

[0043] A second adjustable water gap 20 is formed between the inner conical surface 330a and the outer conical surface 320a to allow cooling water to pass through. The second adjustable water gap 20 is inclined towards the cooling pipe 200, and the jet direction of the second adjustable water gap 20 makes an angle of 60 degrees with the horizontal line. When cooling water enters the backwater seal assembly 2 from the backwater seal inlet pipe 340, it is sprayed out from the second adjustable water gap 20 and enters the cooling pipe 200.

[0044] The water outlet pipe 400 includes a water outlet pipe housing 410 disposed behind the backwater seal housing 310 and a guide sleeve 420 disposed on the inner wall of the water outlet pipe housing 410. In this embodiment, the guide sleeve 420 is made of a material with a hardness lower than that of copper pipe, and one end of the guide sleeve 420 has a flared guide structure. The inner diameter of the guide sleeve 420 is smaller than the inner diameter of the backwater inlet nozzle 320.

[0045] The working principle of this utility model is as follows:

[0046] Cooling water enters through the inlet water seal inlet pipe 140 and the backwater water seal inlet pipe 340 of the inlet water seal assembly 100 and the backwater water seal assembly 300, filling the cooling pipe 200 and flowing out through the outlet pipe 400. The cooling water fills the cooling pipe 200 and forms turbulence, thereby breaking the gas layer on the surface of the copper pipe, strengthening the effective contact between the cooling water and the copper pipe, and improving the cooling effect. At the same time, the hardness of the several contraction sections 220 and the guide sleeve 420 that are in contact with the copper pipe is lower than that of the copper pipe, preventing the surface of the copper pipe from being damaged by impact.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0048] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel three-roll planetary roll mill tube cooler characterized in that, The utility model relates to a copper pipe cooling device for rolling mill, which comprises the following parts: an inlet water seal assembly arranged on the rolling mill cover and used for the copper pipe and cooling water to enter; a cooling pipe arranged on the inlet water seal assembly and used for the cooling water to form turbulence; a reverse water seal assembly arranged on the cooling pipe and used for the copper pipe and cooling water to enter, and a water outlet pipe arranged on the reverse water seal assembly; the inlet water seal assembly comprises an inlet water seal shell, an inlet water seal guide nozzle arranged on the inlet water seal shell, and an inlet adjusting nut arranged between the inlet water seal shell and the inlet water seal guide nozzle, and inlet water seal inlet pipes are symmetrically arranged on both sides of the inlet water seal shell; one end of the inlet water seal guide nozzle is an outer taper surface, the other end of the inlet water seal guide nozzle is a flared guide structure for the copper pipe to enter, one end of the inlet adjusting nut is an inner taper surface with the same angle as the outer taper surface, and the other end of the inlet adjusting nut is a threaded surface for being screwed with the inlet water seal shell; a positioning surface is arranged on the inlet adjusting nut and matched with the outer diameter surface of the inlet water seal guide nozzle, and a water inlet hole for the cooling water to enter is arranged on the positioning surface; a first adjustable water gap for the cooling water to pass through is formed between the inner taper surface and the outer taper surface, the first adjustable water gap is inclined towards the cooling pipe, and the included angle between the jet direction of the first adjustable water gap and the horizontal line is 30 degrees; the cooling pipe comprises a cooling pipe shell arranged behind the inlet water seal shell and a plurality of contraction sections arranged on the inner wall of the cooling pipe shell, and the inner diameter of the plurality of contraction sections is smaller than the inner diameter of the inlet water seal guide nozzle; the reverse water seal assembly comprises a reverse water seal shell arranged behind the cooling pipe shell, a reverse inlet guide nozzle arranged on the reverse water seal shell, and a reverse adjusting nut arranged on the reverse water seal shell, and reverse water seal inlet pipes are symmetrically arranged on both sides of the reverse water seal shell; one end of the reverse inlet guide nozzle is an outer taper surface, the other end of the reverse inlet guide nozzle is a flared guide structure for the copper pipe to enter, one end of the reverse adjusting nut is an inner taper surface with the same angle as the outer taper surface, and the other end of the reverse adjusting nut is a threaded surface for being screwed with the reverse water seal shell; a second adjustable water gap for the cooling water to pass through is formed between the inner taper surface and the outer taper surface, the second adjustable water gap is inclined towards the cooling pipe, and the included angle between the jet direction of the second adjustable water gap and the horizontal line is 60 degrees.

2. A novel three roll planetary mill pipe cooler as claimed in claim 1 wherein, the water outlet pipe comprises a water outlet pipe shell arranged behind the reverse water seal shell and a guide sleeve arranged on the inner wall of the water outlet pipe shell.

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