Sealing water cooling device for down-drawing furnace

Abstract

The utility model belongs to water cooling technical field especially relates to lower lead sealed water cooling device of furnace, the utility model provides a kind of lower lead sealed water cooling device of furnace, it includes: pipe body, its inside is equipped with annular water-accumulating cavity;Water inlet, it is set in pipe body side wall;Water outlet, it is set in pipe body side wall, and horizontal height is lower than water inlet;Wherein, copper pole of equipment is inserted into pipe body after, water inlet transports cooling water to pipe body to cool copper pole inside;Cooling water retained in annular water-accumulating cavity is used to cool copper pole below water outlet.The setting of copper pole pipe body, copper pole is inserted into pipe body, not only improve cooling effect, guarantee sealing performance simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of water cooling technology, and in particular relates to a sealing water cooling device for a lower furnace. Background Technology

[0002] In the field of continuous casting furnace production, the secondary water cooling system and vacuum sealing device of traditional derrick furnaces are usually designed separately. This separate structure results in low equipment integration, large space occupation, and difficulty in simultaneously achieving vacuum sealing and cooling efficiency during operation.

[0003] In related technologies, conventional water cooling methods often use direct spray cooling. The contact time between the cooling water and the high-temperature copper rod (such as the 20mm specification) is short, resulting in insufficient heat exchange and problems such as uneven cooling and thermal stress concentration.

[0004] Therefore, how to simultaneously solve the technical problems of sealing and uneven cooling is an urgent issue that needs to be addressed in this field.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute information related to the technology. Utility Model Content

[0006] This disclosure provides at least one embodiment of a lower furnace sealing water cooling device.

[0007] In a first aspect, embodiments of this disclosure provide a water-cooled sealing device for a lower-entry furnace, comprising: The pipe body has an annular water accumulation chamber inside; the water inlet is located on the side wall of the pipe body. The outlet is located on the side wall of the pipe body and is at a lower horizontal height than the inlet. In this process, after the copper rod of the equipment is inserted into the pipe body, the water inlet delivers cooling water into the pipe body to cool the copper rod. Cooling water stagnates and covers the copper rod within the annular water-collecting cavity.

[0008] In one optional embodiment, there are two water inlets, which are respectively connected to an external cold water pipeline and input cooling medium into the pipe body.

[0009] In one optional embodiment, the diameter of the outlet is 1.5-2 times the diameter of the inlet.

[0010] In one optional embodiment, the pipe body is provided with a plurality of discharge holes near the equipment, the discharge holes penetrating the pipe body and used to discharge the steam generated by the copper rod water cooling.

[0011] In one optional embodiment, the diameter of the discharge hole is 3-5 mm, and the horizontal height of the discharge hole is greater than the horizontal height of the inlet.

[0012] In one optional embodiment, a fastener is provided at the lower end of the pipe body, the fastener being adapted to the lower internal thread interface of the pipe body to seal the pipe body and form the annular water accumulation cavity.

[0013] In one optional embodiment, a washer step is provided near the fastener in the annular water accumulation cavity; wherein, after the fastener is threadedly fitted with the pipe body, the washer step abuts against the sealing ring at the end of the fastener.

[0014] In one optional embodiment, the upper end of the pipe body is provided with an external threaded interface for connecting the equipment, and a sealing ring is sleeved on the outer wall of the external threaded interface.

[0015] In one alternative embodiment, the fastener is designed with an axial locking nut, and the sealing surface clamping force generated by tightening the fastener is 5-10 MPa.

[0016] The beneficial effects of this utility model are that it provides a water-cooling device for a lower furnace sealing system. By integrating the external threaded interface and the annular water accumulation cavity into the tube body, it solves the problem of poor sealing and cooling coordination caused by the traditional split design. At the same time, the stagnant water formed in the annular water accumulation cavity completely covers the surface of the copper rod. Compared with the traditional spray cooling, it not only prolongs the contact time between the cooling water and the copper rod, but also improves the cooling efficiency.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A perspective view of the lower furnace sealing water cooling device provided in the embodiments of this disclosure; Figure 2 This is a cross-sectional perspective view of the pipe body provided in an embodiment of this disclosure.

[0021] In the picture: 1. Pipe body; 10. Annular water accumulation cavity; 11. Washer step; 12. Drain hole; 2. Upper external thread interface; 3. Fastener; 4. Water inlet; 5. Water outlet; 6. Copper rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0024] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0025] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0026] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0027] Research has revealed that in the field of continuous casting furnace copper rod production, the secondary water cooling system and vacuum sealing device of traditional induced draft furnaces are typically designed as separate units. This separate structure results in low equipment integration, large space occupation, and difficulty in simultaneously achieving both vacuum sealing and cooling efficiency during operation.

[0028] In related technologies, conventional water cooling methods often use direct spray cooling. The contact time between the cooling water and the high-temperature copper rod (such as the 20mm specification) is short, resulting in insufficient heat exchange and problems such as uneven cooling and thermal stress concentration.

[0029] Therefore, how to solve the problems of sealing and uneven cooling is a technical problem that urgently needs to be solved in this field.

[0030] The defects in the above solutions and the reasons for their occurrence are the results of the inventors' practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventors' contributions to this disclosure.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] like Figure 1 and Figure 2As shown, at least one embodiment provides a water-cooled sealing device for a lower casting furnace, comprising: a tube body 1, which has an annular water-collecting cavity 10 inside, the bottom wall diameter of the annular water-collecting cavity 10 being greater than 20mm to accommodate a 20mm copper rod 6. The upper end is provided with an external threaded interface 2 for connecting to equipment; the tube body 1 is made of 304 stainless steel; a sealing ring, which is a fluororubber sealing ring, is fitted on the outer wall of the external threaded interface 2. After the tube body 1 is threadedly connected to the vacuum chamber of the continuous casting furnace, the sealing ring is radially compressed after the threads are tightened to achieve a vacuum seal.

[0034] Reference Appendix Figure 2 Fastener 3 is located at the lower end of the pipe body 1 and is threaded to fit the pipe body 1; inlet 4 is located on the side wall of the pipe body 1; outlet 5 is located on the side wall of the pipe body 1 and is at a lower horizontal height than inlet 4; after the copper rod 6 of the device is inserted into the pipe body 1, the inlet 4 delivers cooling water into the pipe body 1 to cool the copper rod 6; the cooling water retained in the annular water accumulation cavity 10 is used to cool the copper rod 6 located below the outlet 5. By integrating the external thread interface 2 and the annular water accumulation cavity 10 into the pipe body 1, the problem of poor sealing and cooling synergy caused by the traditional split design is solved; at the same time, the retained water formed in the annular water accumulation cavity 10 completely covers the surface of the copper rod 6, which, compared with traditional spray cooling, not only prolongs the contact time between the cooling water and the copper rod 6, but also improves the cooling efficiency.

[0035] Reference Appendix Figure 2 A washer step 11 is provided near the fastener 3 in the annular water accumulation cavity 10; wherein, after the fastener 3 is threadedly fitted with the pipe body 1, the washer step 11 abuts against the sealing ring at the end of the fastener 3. A polytetrafluoroethylene sealing ring is placed in the groove of the step. The fastener 3 is a brass lock nut, which, after being screwed into the lower thread of the pipe body 1, compresses the sealing ring to form an axial seal to prevent cooling water leakage. The fastener 3 adopts an axial lock nut design, and the sealing surface clamping force generated by tightening the copper rod 6 is 5-10 MPa.

[0036] Please refer to the attached document again. Figure 2 The inlet 4 consists of two symmetrically distributed threaded holes, each connected to an external cold water pipe, which then feeds cooling medium into the pipe body 1. The outlet 5 has a diameter 1.5-2 times that of the inlet 4. External cooling water is injected into the annular water accumulation chamber 10 through the inlet 4, maintaining a constant flow rate. After entering the pipe body 1, the cooling water contacts the copper rod 6 to cool it. The cooling water rises within the chamber to the height of the outlet 5, forming a continuous water film covering the copper rod 6, thereby cooling it.

[0037] Reference Appendix Figure 1The saturated steam generated by the high-temperature copper rod 6 is discharged directionally through four evenly arranged discharge holes 12 to maintain stable pressure inside the pipe body 1. Several discharge holes 12 are provided near the equipment on the pipe body 1, penetrating the pipe body 1 to discharge the steam generated by the water cooling of the copper rod 6. The diameter of the discharge holes 12 is 3-5 mm, and the horizontal height of the discharge holes 12 is greater than the horizontal height of the water inlet 4.

[0038] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A water-cooled sealing device for a lower-entry furnace, characterized in that, include: The pipe body (1) has an annular water accumulation cavity (10) inside. The inlet (4) is located on the side wall of the pipe body (1); The outlet (5) is located on the side wall of the pipe body (1) and its horizontal height is lower than that of the inlet (4). In this process, after the copper rod (6) of the equipment is inserted into the pipe body (1), the water inlet (4) delivers cooling water into the pipe body (1) to cool the copper rod (6). Cooling water is retained in the annular water accumulation cavity (10) and covers the copper rod (6).

2. The water-cooled sealing device for the lower furnace as described in claim 1, characterized in that, There are two water inlets (4), which are connected to external cold water pipes and input cooling medium into the pipe body (1).

3. The water-cooled sealing device for the lower furnace as described in claim 1, characterized in that, The diameter of the outlet (5) is 1.5-2 times the diameter of the inlet (4).

4. The water-cooled sealing device for the lower furnace as described in claim 1, characterized in that, The pipe body (1) has several discharge holes (12) near the equipment. The discharge holes (12) penetrate the pipe body (1) and are used to discharge the steam generated by the water cooling of the copper rod (6).

5. The lower furnace sealing water cooling device as described in claim 4, characterized in that, The diameter of the discharge hole (12) is 3-5 mm, and the horizontal height of the discharge hole (12) is greater than the horizontal height of the inlet (4).

6. The water-cooled sealing device for the lower furnace as described in claim 1, characterized in that, The lower end of the pipe body (1) is provided with a fastener (3), which is adapted to the lower internal thread interface of the pipe body (1) to seal the pipe body (1) to form the annular water accumulation cavity (10).

7. The water-cooled sealing device for the lower furnace as described in claim 6, characterized in that, The annular water accumulation cavity (10) is provided with a washer step (11) near the fastener (3); wherein, after the fastener (3) is threadedly adapted to the pipe body (1), the washer step (11) abuts against the sealing ring at the end of the fastener (3).

8. The water-cooled sealing device for the lower furnace as described in claim 1, characterized in that, The upper end of the pipe body (1) is provided with an upper external thread interface (2) for connecting equipment, and a sealing ring upper external thread interface is sleeved on the outer wall of the upper external thread interface (2).

9. The water-cooled sealing device for the lower furnace as described in claim 6, characterized in that, The fastener (3) adopts an axial locking nut design, and the sealing surface clamping force generated by tightening the fastener (3) is 5-10 MPa.

Images