CN108796186B - Cooling device with uniform flow field in quenching process - Google Patents
Cooling device with uniform flow field in quenching process Download PDFInfo
- Publication number
- CN108796186B CN108796186B CN201810701023.3A CN201810701023A CN108796186B CN 108796186 B CN108796186 B CN 108796186B CN 201810701023 A CN201810701023 A CN 201810701023A CN 108796186 B CN108796186 B CN 108796186B
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- Prior art keywords
- guide vane
- guide
- vane group
- group
- annular
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- 238000010791 quenching Methods 0.000 title claims abstract description 31
- 230000000171 quenching effect Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 18
- 239000000110 cooling liquid Substances 0.000 claims abstract description 16
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 5
- 230000007704 transition Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
- C21D1/64—Quenching devices for bath quenching with circulating liquids
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a cooling device with uniform flow field in quenching process, which comprises an outer groove and a guide cylinder, wherein: a) The guide cylinder is arranged in the outer groove and soaked in quenching cooling liquid; b) The guide cylinder is provided with a guide vane group and an annular steady flow supporting frame; c) The lower part of the central guide vane group is provided with a corresponding inlet and is in butt joint with the independent drainage tube, and the outer end of the central guide vane group is provided with a circulating pump communicated with quenching cooling liquid; d) At least three annular guide vanes are arranged in the central guide vane group, at least three arc guide vanes are arranged in each peripheral guide vane group, and an equal-width annular groove surrounding the central guide vane group is formed between adjacent arc guide vanes; e) The frame of the annular steady flow support frame is internally provided with regular hexagonal honeycomb holes which are uniformly distributed.
Description
Technical Field
The invention relates to a cooling device in a quenching process, in particular to a cooling device with uniform flow field in the quenching process, belonging to the field of metal heat treatment and machinery.
Background
With the sustainable development of national economy, people put forward higher standards and requirements on the field of mechanical manufacturing, and high quality, high reliability and high durability of industrial products become more and more important. Heat treatment is a key ring in the field of industrial manufacturing, wherein the heat treatment quenching process is one of key steps of the heat treatment process, and the quality of a quenching device directly determines the quality of a material after heat treatment. The conventional quenching device generally has the problems of slow fluid flow in the groove, uneven flow field, uncontrollable flow velocity and the like, so that the heat treated part is often cracked, deformed greatly, and unqualified in mechanical property and metallographic structure. How to adjust the flow rate and flow field uniformity of the quenching liquid in the quenching tank is a key link for ensuring the quenching quality, and is a technical problem closely focused in the field.
Disclosure of Invention
The invention aims at overcoming the defects of deformation, cracking or mechanical property failure of a metallographic structure and the like of a workpiece caused by uneven cooling in the prior art. A cooling device with uniform flow field in quenching process is provided.
The purpose of the invention is realized in the following way: a cooling device with uniform flow field in quenching process comprises an outer groove and a guide cylinder, wherein quenching cooling liquid is arranged in the outer groove,
a) The guide cylinder is arranged in the outer groove and soaked in quenching cooling liquid;
b) The center of the bottom of the guide cylinder is a circular center guide vane group, at least two guide vane groups with the same shape and structure and shaped like a folded fan surface are uniformly distributed around the center guide vane group, the edges of the center guide vane group and the peripheral guide vane group are tightly attached, the tops of the center guide vane group and the peripheral guide vane group are positioned on the same horizontal line, and a fully-covered annular steady flow support frame is arranged;
c) The center of the lower part of the center guide vane group is provided with an inlet, the lower part of each guide vane group at the periphery of the center guide vane group is provided with a corresponding inlet, the inlets of each group are in butt joint with an independent drainage tube penetrating through the outer groove, the outer end of each group is provided with a circulating pump driven by a synchronous control speed regulating motor, and the population of the circulating pump is communicated with quenching cooling liquid in the groove through the lower part of the outer groove;
d) At least three annular guide vanes are arranged in the central guide vane group, extend downwards from the upper part of the group to the inlet, form a central circle by the annular guide vanes positioned at the center, and form an equal-width annular groove surrounding the central circle by each adjacent annular guide vane; at least three arc-shaped guide vanes are arranged in each peripheral guide vane group and extend downwards from the upper part of the group to the inlet, after the peripheral guide vane groups are assembled, the arc-shaped guide vanes in the peripheral guide vane groups correspond to each other, and an equal-width annular groove surrounding the central guide vane group is formed between the adjacent arc-shaped guide vanes;
e) The frame of the annular steady flow support frame is internally provided with regular hexagonal honeycomb holes which are uniformly distributed.
In the invention, the guide cylinder and the outer groove are concentrically arranged, the top of the outer groove is a necking, the upper edge opening of the guide cylinder is turned outwards, and the edge opening of the outer groove is larger than the upper edge opening of the guide cylinder.
In the invention, four deflector groups with the same shape and structure and shaped like a folded sector are uniformly distributed around the central deflector group
In the annular steady flow support frame, the longitudinal tangent plane of each hole wall in each regular hexagonal honeycomb hole is buckled into a cone shape like an upper cone bottom and a lower cone bottom, the cone bottom joint surfaces of the upper cone and the lower cone are smoothly transited by curved surfaces, and the area of the upper edge and the lower edge of each regular hexagonal honeycomb hole formed by combining the hole walls of the structure is larger than the sectional area of the hole.
In the invention, the position of the annular steady flow support frame is not higher than one fourth of the guide cylinder.
The invention has the advantages that as the guide cylinder is arranged in the outer groove and soaked in quenching cooling liquid, the center of the bottom of the guide cylinder is the center guide cylinder group and the guide cylinder groups are uniformly distributed around the guide cylinder group, the guide cylinder groups are respectively provided with the guide plates extending to the inlet, the guide plates form the annular groove at the bottom of the guide cylinder, and quenching cooling liquid can uniformly enter the guide cylinder from one surface formed by the annular groove. In particular to a full-coverage annular steady flow support frame which can be used for redistributing and adjusting the uniformity of the water outlet surface of quenching cooling liquid. Because the circulating pump adopts the synchronous control speed regulating motor, in particular to a fully covered annular steady flow supporting frame, the special hole wall structure of the regular hexagonal honeycomb holes in the covered annular steady flow supporting frame can further regulate and improve the flow field speed and flow field quality of quenching cooling liquid. The annular steady flow support frame is not higher than one fourth of the guide cylinder, so that the guide cylinder can be ensured to have a large enough working space. Because the guide cylinder and the outer groove are concentrically arranged, the top of the outer groove is a necking, the upper edge opening of the guide cylinder is turned outwards, and the edge opening of the outer groove is larger than the upper edge opening of the guide cylinder, so that a machined workpiece can be accurately placed into the guide cylinder in working. The edge of the guide cylinder is turned outwards to guide and drain the circulating quenching cooling liquid, so that the flow resistance in the circulation is reduced.
The invention has compact structure and convenient maintenance.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic top view of fig. 2.
FIG. 3 is a schematic view of the structure of the deflector assembly of the present invention in the form of a fan fold.
FIG. 4 is a schematic view of an annular steady flow support frame structure according to the present invention.
Fig. 5 is a longitudinal section B-B of the regular hexagonal honeycomb holes of fig. 4.
In the figure: 1. the device comprises an outer groove, 2, a guide cylinder, 3, a central guide vane group, 4, a guide vane group, 5, an annular steady flow support frame, 6, a drainage tube, 7, a circulating pump, 8, a pipeline, 9, an annular guide vane, 10, an arc guide vane, 11, an annular groove, 12, a regular hexagon honeycomb hole, 13 and a hole wall.
Detailed Description
The drawings disclose, without limitation, the basic structure of embodiments of the invention, and the invention is further described below with reference to the accompanying drawings.
As can be seen from fig. 1 and 2, the present invention comprises an outer tank 1 and a guide cylinder 2, wherein a quenching cooling liquid is placed in the outer tank 1, and the guide cylinder 2 is placed in the outer tank 1 and immersed in the quenching cooling liquid.
The center of the bottom of the guide cylinder 2 is a circular center guide vane group 3, at least two guide vane groups 4 with the same shape and structure and the shape like a folded fan surface are uniformly distributed around the center guide vane group 3, the edges of the center guide vane group 3 and the peripheral guide vane groups 4 are tightly attached, the tops of the center guide vane groups are positioned on the same horizontal line, and a fully-covered annular steady flow support frame 5 is arranged.
The center of the lower part of the center guide vane group 3 is provided with an inlet, the lower part of each guide vane group 4 at the periphery of the center guide vane group is provided with a corresponding inlet, the inlets of each group are in butt joint with an independent drainage tube 6 penetrating through the outer groove, the outer end of the inlet is provided with a circulating pump 7 driven by a synchronous control speed regulating motor, and the population of the circulating pump 7 is communicated with quenching cooling liquid in the groove from the lower part of the outer groove through a pipeline 8.
At least three annular guide vanes 9 are arranged in the central guide vane group 3, extend downwards from the upper part of the group to the inlet, the annular guide vanes 9 positioned at the center form a central circle, and each adjacent annular guide vane 9 forms an equal-width annular groove surrounding the central circle; at least three arc-shaped guide vanes 10 are arranged in each peripheral guide vane group 4, and extend downwards from the upper part of the group to the inlet, after the peripheral guide vane groups 4 are assembled, the arc-shaped guide vanes 10 in the peripheral guide vane groups correspond to each other, and an equal-width annular groove 11 surrounding the central guide vane group is formed between the adjacent arc-shaped guide vanes 10.
In this embodiment, four baffle groups 4 with the same shape and structure as the folded fan surface are uniformly distributed around the central baffle group 3, the baffle cylinder 2 and the outer groove 1 are concentrically arranged, the top of the outer groove 1 is a necking, the upper edge of the baffle cylinder 2 is turned outwards, and the edge of the outer groove 1 is larger than the upper edge of the baffle cylinder 2.
As can be seen from fig. 3, at least three arc-shaped guide vanes 10 are provided in each peripheral guide vane set 4, and extend downwards from the upper part of the set to the inlet, after the peripheral guide vane sets 4 are assembled, the arc-shaped guide vanes 10 in the peripheral guide vane sets correspond to each other, and an equal-width annular groove 11 surrounding the central guide vane set is formed between the adjacent arc-shaped guide vanes 10.
As can be seen from fig. 4, the frame of the annular steady flow support frame 5 is internally provided with regular hexagonal honeycomb holes 12 which are uniformly distributed.
As can be seen from fig. 5, in the annular steady flow supporting frame 5, the longitudinal section of each hole wall 13 in each regular hexagonal honeycomb hole 12 is shaped like a cone with the upper and lower cone bottoms buckled, the cone bottom joint surfaces of the upper and lower cones are smoothly transited by curved surfaces, and the area of the upper and lower edge openings of each regular hexagonal honeycomb hole 12 formed by combining the hole walls 13 with the structure is larger than the sectional area of the hole.
In the specific implementation, the actual position of the annular steady flow support frame 5 is not higher than one fourth of the height of the inner cavity of the guide cylinder 2.
Claims (2)
1. A cooling device with uniform flow field in quenching process comprises an outer groove and a guide cylinder, wherein quenching cooling liquid is arranged in the outer groove,
a) The guide cylinder is arranged in the outer groove and soaked in quenching cooling liquid; the guide cylinder is arranged concentrically with the outer groove, the top of the outer groove is a necking, the upper edge opening of the guide cylinder is turned outwards, and the edge opening of the outer groove is larger than the upper edge opening of the guide cylinder;
b) The center of the bottom of the guide cylinder is a circular center guide vane group, at least two guide vane groups with the same shape and structure and shaped like a folded fan surface are uniformly distributed around the center guide vane group, the edges of the center guide vane group and the peripheral guide vane group are tightly attached, the tops of the center guide vane group and the peripheral guide vane group are positioned on the same horizontal line, and a fully-covered annular steady flow support frame is arranged;
c) The center of the lower part of the center guide vane group is provided with an inlet, the lower part of each guide vane group at the periphery of the center guide vane group is provided with a corresponding inlet, the inlets of each group are in butt joint with an independent drainage tube penetrating through the outer groove, the outer end of each group is provided with a circulating pump driven by a synchronous control speed regulating motor, and the population of the circulating pump is communicated with quenching cooling liquid in the groove through the lower part of the outer groove;
d) At least three annular guide vanes are arranged in the central guide vane group, extend downwards from the upper part of the group to the inlet, form a central circle by the annular guide vanes positioned at the center, and form an equal-width annular groove surrounding the central circle by each adjacent annular guide vane; at least three arc-shaped guide vanes are arranged in each peripheral guide vane group and extend downwards from the upper part of the group to the inlet, after the peripheral guide vane groups are assembled, the arc-shaped guide vanes in the peripheral guide vane groups correspond to each other, and an equal-width annular groove surrounding the central guide vane group is formed between the adjacent arc-shaped guide vanes; four deflector groups with the same shape and structure and shaped like a folding fan surface are uniformly distributed around the central deflector group;
e) Regular hexagonal honeycomb holes are uniformly distributed in the frame of the annular steady flow support frame; in the annular steady flow support frame, the longitudinal tangent plane of each pore wall in each regular hexagonal honeycomb pore is buckled into a cone shape like an upper cone bottom and a lower cone bottom, the cone bottom joint surfaces of the upper cone and the lower cone are in smooth transition by a curved surface, and the area of the upper edge opening and the lower edge opening of each regular hexagonal honeycomb pore formed by combining the pore walls of the structure is larger than the sectional area of the pore.
2. The cooling device for uniform flow field in quenching process according to claim 1, wherein the annular steady flow support frame is positioned not higher than one fourth of the guide cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810701023.3A CN108796186B (en) | 2018-06-29 | 2018-06-29 | Cooling device with uniform flow field in quenching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810701023.3A CN108796186B (en) | 2018-06-29 | 2018-06-29 | Cooling device with uniform flow field in quenching process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108796186A CN108796186A (en) | 2018-11-13 |
| CN108796186B true CN108796186B (en) | 2024-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810701023.3A Active CN108796186B (en) | 2018-06-29 | 2018-06-29 | Cooling device with uniform flow field in quenching process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108796186B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3935929A1 (en) * | 1989-10-27 | 1991-05-02 | Wsp Ingenieurgesellschaft Fuer | Convective heat treatment unit for e.g. semi-finished wire - uses gas steam for rapid cooling of wire positioned transverse to flow in venturi-line guide |
| CN2740622Y (en) * | 2004-11-01 | 2005-11-16 | 江苏曙光石油钻具有限公司 | Quenching and cooling device for petroleum drill rod joint |
| JP2014162933A (en) * | 2013-02-22 | 2014-09-08 | Fuji Heavy Ind Ltd | Method and device for heat treatment of shaft parts |
| CN206089736U (en) * | 2016-10-21 | 2017-04-12 | 益阳三工机械制造有限公司 | Quenching cooling device |
| CN208594313U (en) * | 2018-06-29 | 2019-03-12 | 南京高速齿轮制造有限公司 | The cooling device of even flow field in quenching technical |
-
2018
- 2018-06-29 CN CN201810701023.3A patent/CN108796186B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3935929A1 (en) * | 1989-10-27 | 1991-05-02 | Wsp Ingenieurgesellschaft Fuer | Convective heat treatment unit for e.g. semi-finished wire - uses gas steam for rapid cooling of wire positioned transverse to flow in venturi-line guide |
| CN2740622Y (en) * | 2004-11-01 | 2005-11-16 | 江苏曙光石油钻具有限公司 | Quenching and cooling device for petroleum drill rod joint |
| JP2014162933A (en) * | 2013-02-22 | 2014-09-08 | Fuji Heavy Ind Ltd | Method and device for heat treatment of shaft parts |
| CN206089736U (en) * | 2016-10-21 | 2017-04-12 | 益阳三工机械制造有限公司 | Quenching cooling device |
| CN208594313U (en) * | 2018-06-29 | 2019-03-12 | 南京高速齿轮制造有限公司 | The cooling device of even flow field in quenching technical |
Non-Patent Citations (1)
| Title |
|---|
| 钢铁工件控制新型淬火槽的改进设计探索;张晓东;;科技资讯(23);全文 * |
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| CN108796186A (en) | 2018-11-13 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190926 Address after: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200512 Address after: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. |
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