Water quenching pool

Abstract

The utility model relates to a water quenching pool. The device comprises a tank body, a stirring mechanism, an aeration mechanism and a circulating cooling system, the stirring mechanism is installed in the tank body through a support, the stirring mechanism comprises a stirring shaft, stirring blades and a motor, the stirring shaft is rotatably installed on the support in the vertical direction, the stirring blades are installed on the stirring shaft in the axial direction of the stirring shaft, and the stirring shaft can be driven to rotate through the motor; the aeration mechanism is mounted at the bottom of the tank body, and air can be injected into water through the aeration mechanism, so that the cooling uniformity of the casting is improved; the tank body is further connected with a circulating cooling system, and the temperature of water in the tank body can be reduced through the circulating cooling system. According to the scheme, the uniformity of the water temperature in the pool can be improved, a heat insulation steam film is damaged during water quenching, water makes continuous contact with the surface of the casting, and the water quenching effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting production equipment, in particular to a water quenching tank. BACKGROUND

[0002] Water quenching (using water to quench) is a key process in the heat treatment of steel castings, its principle is to adjust the microstructure and mechanical properties of the material through rapid cooling, so as to improve the quality of the castings.

[0003] In the casting processing plant, a water quenching tank is usually provided for quenching to facilitate water quenching operation. Since the water quenching tank in the plant is large and has poor flowability, the water temperature in the local area of the tank is easily too high during water quenching, affecting the water quenching effect. Currently, mechanical stirring equipment can be used to disturb the water in the water quenching tank, thereby improving the uniformity of the water temperature. Since the stirring device has a limited influence range, and the water quenching tank is large, dead angle areas are easily formed, and it is difficult to ensure the uniformity of the water temperature in the water quenching tank. Further, when a high-temperature casting (usually > 900℃) is immersed in the water quenching tank, a large amount of steam is instantly generated on the surface of the casting, forming a layer of heat insulation steam film. This layer of film hinders the direct contact between water and the casting, resulting in uneven cooling of the casting, and causing problems such as casting deformation, insufficient hardness, surface cracks, etc. CONTENT OF THE UTILITY MODEL

[0004] To solve or partially solve the problems in the related art, the present application provides a water quenching tank, which can improve the uniformity of the water temperature in the tank and destroy the heat insulation steam film during water quenching, so as to ensure the water quenching effect.

[0005] The present application provides a water quenching tank, comprising:

[0006] a tank body;

[0007] a stirring mechanism, the stirring mechanism is installed in the tank body through a support, the stirring mechanism comprises a stirring shaft, stirring blades and a motor, the stirring shaft is installed on the support in vertical rotation, and a plurality of stirring blades are installed on the stirring shaft in the axial direction thereof, and the stirring shaft can be rotated by the motor;

[0008] an aeration mechanism, the aeration mechanism is installed at the bottom of the tank body, and air can be injected into the water through the aeration mechanism to improve the uniformity of the cooling of the casting;

[0009] a circulating cooling system, the tank body is also connected with the circulating cooling system, and the temperature of the water in the tank body can be reduced through the circulating cooling system.

[0010] Optionally, in some embodiments, the stirring mechanism is provided in four groups, two groups at a time, and is symmetrically installed on both sides of the tank body, and the rotation directions of the stirring mechanisms on the same side are opposite.

[0011] Optionally, in some embodiments, a first stabilizer is fixedly connected to the support, and the upper segment of the stirring shaft is rotationally connected to the first stabilizer; a second stabilizer is fixedly connected to the sidewall of the pool body, and the middle segment of the stirring shaft is rotationally connected to the second stabilizer; and a third stabilizer is fixedly connected to the bottom of the pool body, and the bottom end of the stirring shaft is rotationally connected to the third stabilizer.

[0012] Optionally, in some embodiments, a first pulley is fixedly connected to the top end of the stirring shaft, a second pulley is fixedly connected to the output shaft of the motor, and the first pulley and the second pulley are connected by a transmission belt.

[0013] Optionally, in some embodiments, the aeration mechanism comprises an air compressor, a main air pipe and branch air pipes, the bottom of the pool body is uniformly paved with a plurality of branch air pipes, each of the branch air pipes is uniformly provided with a nozzle, all the branch air pipes are in communication with the main air pipe, and the main air pipe is connected to the air compressor.

[0014] Optionally, in some embodiments, the circulating cooling system comprises a water pumping pipe, a water pump, a cooling tower, a water returning pipe, a first valve and a water inlet pipe, the water inlet end of the cooling tower is connected to the pool body by the water pumping pipe, and the water pumping pipe is provided with the water pump; the water outlet end of the cooling tower is provided with the water returning pipe, the water returning pipe is connected to the water inlet pipe by the first valve, and the cooled water can be guided back into the pool body through the water inlet pipe.

[0015] Optionally, in some embodiments, the water inlet pipe is further connected to a water adding pipe, the water adding pipe is connected to an external water supply device, and the water adding pipe is provided with a second valve.

[0016] The technical scheme provided by the present application can have the following beneficial effects.

[0017] The present application can disturb the water flow by the stirring mechanism with opposite rotation directions, generate staggered turbulent flow in the pool body, reduce the dead angle area, and improve the uniformity of water temperature; the aeration mechanism can inject compressed air into the water, so that a large number of air bubbles are generated in the pool, the rising air bubbles can not only promote the turbulent flow of the water body, reduce the temperature stratification, avoid local overheating, improve the uniformity of water temperature, but also directly impact the heat insulation steam film, accelerate the rupture of the heat insulation steam film, so that the water and the surface of the casting can be in continuous contact, improve the uniformity of casting cooling, and ensure the quality of the casting.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to the like elements throughout the drawings, and in which:

[0020] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0021] Fig. 2 is a schematic diagram of the stirring mechanism of the present application;

[0022] Fig. 3 is a schematic diagram of the aeration mechanism of the present application.

[0023] Reference signs:

[0024] 1 - pool body, 2 - support, 21 - first stabilizer, 22 - second stabilizer, 23 - third stabilizer, 3 - stirring mechanism, 31 - stirring shaft, 32 - stirring blade, 33 - first pulley, 34 - second pulley, 35 - transmission belt, 36 - motor, 4 - aeration mechanism, 41 - air compressor, 42 - main air pipe, 43 - branch air pipe, 44 - nozzle, 5 - circulating cooling system, 51 - water suction pipe, 52 - water pump, 53 - cooling tower, 54 - water return pipe, 55 - first valve, 56 - water inlet pipe, 57 - water filling pipe, 58 - second valve. DETAILED DESCRIPTION

[0025] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0026] It should be understood that although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0027] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", and the like are to be construed in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Referring to Figs. 1-3 A water quenching tank comprises:

[0030] The tank body 1 is in a square structure, and the length-width ratio is within 1:1.5, so as to avoid that the tank body 1 is long and narrow, facilitate disturbance of water in the tank, and reduce the dead angle area. The support 2 is installed in the tank body 1, the top of the support 2 is fixedly connected to the edge position of the tank body 1, and the bottom of the support 2 is fixedly connected to the bottom of the tank body 1, so as to ensure the stability of the support 2.

[0031] The stirring mechanism 3 is installed in the tank body 1 through the support 2, and the stirring mechanism 3 comprises a stirring shaft 31, stirring blades 32 and a motor 36. The stirring shaft 31 is installed in the vertical direction. The first stabilizing frame 21 is fixedly connected to the support 2, and the upper section of the stirring shaft 31 is rotationally connected to the first stabilizing frame 21. The second stabilizing frame 22 is fixedly connected to the side wall of the tank body 1, and the middle section of the stirring shaft 31 is rotationally connected to the second stabilizing frame 22. The third stabilizing frame 23 is fixedly connected to the bottom of the tank body 1, and the bottom end of the stirring shaft 31 is rotationally connected to the third stabilizing frame 23. The stability of the stirring shaft 31 during rotation is ensured by externally supporting the stirring shaft 31 at multiple positions. A plurality of stirring blades 32 are fixedly installed on the stirring shaft 31 in the axial direction. In the embodiment, there are three groups of stirring blades 32. The water in each layer is uniformly disturbed by the multi-layer arrangement of the stirring blades 32, so as to improve the uniformity of water temperature.

[0032] The first pulley 33 is fixedly connected to the top end of the stirring shaft 31, the motor 36 is fixedly installed on the support 2, and the output shaft of the motor 36 is fixedly connected with the second pulley 34. The first pulley 33 and the second pulley 34 are connected through the transmission belt 35. The stirring shaft 31 can be rotated by the motor 36. In the embodiment, there are four groups of stirring mechanisms 3, two groups of which are symmetrically installed on the two sides of the tank body 1, and the rotation directions of the stirring mechanisms 3 on the same side are opposite, so as to generate staggered turbulent flow in the tank, reduce the dead angle area, and improve the uniformity of water temperature.

[0033] An aeration mechanism 4 is installed at the bottom of the tank 1. Compressed air is injected into the water through the aeration mechanism 4, causing a large number of bubbles to form in the tank 1. These rising bubbles not only promote water turbulence, reduce temperature stratification, prevent localized overheating, and improve water temperature uniformity, but also directly impact the insulating vapor film, accelerating its rupture. This ensures continuous contact between the water and the casting surface, improving the uniformity of casting cooling and guaranteeing casting quality. The aeration mechanism 4 includes an air compressor 41, a main air pipe 42, and distribution air pipes 43. Several distribution air pipes 43 are evenly laid at the bottom of the tank 1, and each distribution air pipe 43 is evenly equipped with nozzles 44. All distribution air pipes 43 are connected to the main air pipe 42, which is connected to the air compressor 41. In use, compressed air is generated by the air compressor 41, enters each distribution air pipe 43 along the main air pipe 42, and finally exits from the nozzles 44, thus forming a large number of bubbles at the bottom of the tank 1.

[0034] After repeated use, the water temperature inside the quenching tank will rise overall, affecting the quenching effect. The circulating cooling system 5 can reduce the water temperature inside the tank. The circulating cooling system 5 includes a pumping pipe 51, a water pump 52, a cooling tower 53, a return pipe 54, a first valve 55, and an inlet pipe 56. The inlet end of the cooling tower 53 is connected to the tank body 1 through the pumping pipe 51. The pumping pipe 52 is installed on the pumping pipe 51, which pumps water from the tank body 1 to the cooling tower 53. The outlet end of the cooling tower 53 is connected to the return pipe 54, which is connected to the inlet pipe 56 through the first valve 55. The inlet pipe 56 guides the cooled water back into the tank body 1. The first valve 55 controls the opening and closing of the return pipe 54. Furthermore, the inlet pipe 56 is also connected to a water supply pipe 57, which is connected to an external water supply device. A second valve 58 is installed on the water supply pipe 57, which can be used to replenish water into the pool 1 by opening the second valve 58.

[0035] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A water quenching tank, characterized in that: include pool(1); The stirring mechanism (3) is installed in the tank (1) by a bracket (2). The stirring mechanism (3) includes a stirring shaft (31), stirring blades (32), and a motor (36). The stirring shaft (31) is rotatably mounted on the bracket (2) in a vertical direction, and a number of stirring blades (32) are installed on the stirring shaft (31) along its axial direction. The stirring shaft (31) can be driven to rotate by the motor (36). Aeration mechanism (4) is installed at the bottom of the pool body (1). Air can be injected into the water through the aeration mechanism (4) to improve the uniformity of casting cooling. The pool (1) is also connected to the circulating cooling system (5), which can reduce the temperature of the water in the pool (1).

2. The water quenching tank according to claim 1, characterized in that: The stirring mechanism (3) consists of four groups, arranged in pairs, and symmetrically installed on both sides of the pool body (1), with the stirring mechanism (3) on the same side rotating in opposite directions.

3. The water quenching tank according to claim 2, characterized in that: A first stabilizing frame (21) is fixedly connected to the support (2), and the upper section of the stirring shaft (31) is rotatably connected to the first stabilizing frame (21); a second stabilizing frame (22) is fixedly connected to the side wall of the pool body (1), and the middle section of the stirring shaft (31) is rotatably connected to the second stabilizing frame (22); a third stabilizing frame (23) is fixedly connected to the bottom of the pool body (1), and the bottom end of the stirring shaft (31) is rotatably connected to the third stabilizing frame (23).

4. The water quenching tank according to claim 3, characterized in that: The top end of the stirring shaft (31) is fixedly connected to a first pulley (33), and the output shaft of the motor (36) is fixedly connected to a second pulley (34). The first pulley (33) and the second pulley (34) are connected by a transmission belt (35).

5. The water quenching tank according to claim 1, characterized in that: The aeration mechanism (4) includes an air compressor (41), a main air pipe (42), and a distribution air pipe (43). Several distribution air pipes (43) are evenly laid at the bottom of the pool body (1). Each distribution air pipe (43) is evenly equipped with a nozzle (44). All distribution air pipes (43) are connected to the main air pipe (42), and the main air pipe (42) is connected to the air compressor (41).

6. The water quenching tank according to claim 1, characterized in that: The circulating cooling system (5) includes a water pump (52), a cooling tower (53), a return water pipe (54), a first valve (55), and an inlet water pipe (56). The inlet end of the cooling tower (53) is connected to the pool body (1) through the water pump (51), and the water pump (52) is installed on the water pump (51). The outlet end of the cooling tower (53) is equipped with a return water pipe (54), which is connected to the inlet water pipe (56) through the first valve (55). The cooled water can be guided back into the pool body (1) through the inlet water pipe (56).

7. The water quenching tank according to claim 6, characterized in that: The inlet pipe (56) is also connected to a water supply pipe (57), which is connected to an external water supply device, and a second valve (58) is installed on the water supply pipe (57).

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