CN201581111U

CN201581111U - Whole bar quenching and cooling device

Info

Publication number: CN201581111U
Application number: CN2010200036142U
Authority: CN
Inventors: 蔡向东; 王宗仁; 曹宪彬; 邵康
Original assignee: SHANGHAI BEITE METAL PRODUCTS CO Ltd
Current assignee: Shanghai Beite Technology Co., Ltd.
Priority date: 2010-01-08
Filing date: 2010-01-08
Publication date: 2010-09-15
Anticipated expiration: 2020-01-08

Abstract

The utility model relates to a whole bar quenching and cooling device comprising a cooling tower and a water channel, wherein a water tank is communicated with and arranged under the cooling tower; the lower part of the water channel is connected with the cooling tower by a water recession pipeline; a water pump is arranged on the water recession pipeline; the upper part of the water channel is provided with a water inlet pipeline connected with the water tank; a cooling mechanism is arranged in the water channel and comprises at least two water spraying rings which are connected with the water inlet pipeline by a control valve; the upper parts of the water spraying rings are provided with stainless steel pipes connected with the control valve, the lower parts thereof are provided with spraying round tubes; the spraying round pipes are connected with the stainless steel pipes by welding; a layer of uniform pressure plates are arranged between the inner wall and the outer wall of the spraying round pipes; the shape of the inner side of the spraying round pipe is an inner conical surface; the bottom of the inner conical surface is a plane; hole nozzles uniformly distributed are arranged on the inner conical surface; and as the injected water spraying bundle flow is distributed along the circumferential direction of the bar, the cooling of the bar is uniform, thus obtaining good linearity.

Description

Bar integral quenching refrigerating unit

Technical field

The utility model relates to a kind of bar integral quenching refrigerating unit, relates in particular to cooling body in this bar integral quenching refrigerating unit.

Background technology

As seen from Figure 1: bar integral quenching refrigerating unit of the prior art comprises: tank has for 3 times two row's rollers 4 to do the rotation rolling in order to drive bar in tank, cooling water inlet pipe road 7 is arranged at the bottom of tank 3, water-break pipeline 6 is arranged at top, there is water pump 8 that water is delivered to cooling tower 1 by water-break pipeline 6 simultaneously, be delivered to tank 3 by the inlet channel 7 of water tank 5 by water control valve 10 through cooling tower 1 refrigerative water, thereby realize the circulation of water.Water control valve 10 is arranged on the inlet channel 7, in the inlet channel He in the tank thermometer 9 is housed, the discharge of water cycle can be controlled by water control valve, and water temperature can be read by thermometer.When bar after heating, dial in tank through setting gauge 2, the water in the cooling trough is constantly stirred in the rolling of following roller to drive simultaneously, so that its cooling evenly.

But there is following problem in said structure: in the control tank everywhere the homogeneity of water temperature be subjected to the influence of each side factor, from real angle is to be difficult to realize, water temperature often occurs bigger difference is arranged, thereby make the inhomogeneous cooling of bar, so that form bigger internal stress, it is significantly crooked that bar is produced, to producing and quality all causes and seriously influences.

Summary of the invention

The utility model technical issues that need to address have provided a kind of bar integral quenching refrigerating unit, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: cooling tower; Water tank that communicates with it of positioned beneath at cooling tower; Also comprise: a tank; The bottom of described tank links to each other with cooling tower by a water-break pipeline; On the water-break pipeline, settle a water pump; Settle an inlet channel and water tank to join on the top of tank; A cooling body is placed in the tank; Described cooling body comprises at least two water rings; Water ring links to each other with inlet channel by water control valve; The top of described water ring is the stainless steel tube that links to each other with water control valve, and the bottom of water ring is the spray pipe; Spray pipe and stainless steel tube are by being weldingly connected; Between the inner and outer wall of spray pipe, there is one deck to spare pressing plate; Spray the inner conical surface that is shaped as of pipe inboard; The bottom of inner conical surface is a plane; Equally distributed little hole nozzle is arranged on the inner conical surface.

Compared with prior art, the beneficial effects of the utility model are: since the beam for jet flow that sprays along bar ring to distribution, make the bar cooling evenly, obtain good linearity; Can wash away simultaneously the iron filings that are positioned at the bar surface and oxide skin etc. preferably, purify the surface, respond well.

Description of drawings

Fig. 1 is a bar integral quenching refrigerating unit structural representation of the prior art;

Fig. 2 is the utility model structural representation;

Fig. 3 is a cooling body structural representation among Fig. 2;

Fig. 4 A is a water ring stereographic map among Fig. 3;

Fig. 4 B Fig. 4 A side cutaway view;

Fig. 4 C is Fig. 4 A front view.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

By Fig. 2, Fig. 3, Fig. 4 A, Fig. 4 B, Fig. 4 C as seen: the utility model comprises: cooling tower 1; Water tank that communicates with it 5 of positioned beneath at cooling tower 1; Also comprise: a tank 3; The bottom of described tank 3 links to each other with cooling tower 1 by a water-break pipeline 60; On water-break pipeline 60, settle a water pump 80; Settle an inlet channel 70 and water tank 5 to join on the top of tank 3; A cooling body is placed in the tank 3; Described cooling body comprises at least two water rings 11; Water ring 11 links to each other with inlet channel 70 by water control valve 100; The top of described water ring 11 is the stainless steel tubes 14 that link to each other with water control valve 100, and the bottom of water ring 11 is spray pipe 15; Spray pipe 15 and stainless steel tube 14 are by being weldingly connected; Between the inner and outer wall of spray pipe 15, there is one deck to spare pressing plate 16; Spray pipe 15 inboards be shaped as inner conical surface 151; The bottom of inner conical surface 151 is a plane 152; Equally distributed aperture nozzle 17 is arranged on the inner conical surface 151;

Hydraulic pressure instrument 13, thermometer 90 and y-type filter 12 also are installed on described inlet channel 70;

Described water ring 11 is 3, and 3 water rings are centered close to same straight line, keeps equidistant.

In order to realize that bar has even more ideal tissue and favorable mechanical performance and linearity after integral quenching, the utility model provide aperture distribute more water spray drench beam for jet flow that ring can make injection along bar ring to being evenly distributed, make by the bar cooling of water ring even, obtain good linearity, can wash away simultaneously the iron filings that are positioned at the bar surface and oxide skin etc. preferably, purify the surface, respond well.

Water coolant is implemented to quench to bar by the water ring ejection in the utility model, flow into tank after the water quenching simultaneously, be delivered to cooling tower by the tank outflow through water pump again, water is implemented the cooling back by cooling tower and is delivered to water ring by the water pump of installing on the radiator drain road, realizes the circulation of water.Wherein the water ring inlet channel is controlled discharge by water control valve, on it hydraulic pressure instrument and thermometer is installed simultaneously, can measure hydraulic pressure and temperature.

Its one-piece construction top of water ring in the utility model is stainless steel tube, and the bottom is a copper water spray pipe, and both are by being weldingly connected.Have one deck to spare pressing plate between water spray round tube inner wall and the outer wall, be used for even hydraulic pressure, upper bottom surface is plane+cone surface, and bottom surface is the plane, and equally distributed little hole nozzle is arranged on its inner conical surface.At the high distribution density of water ring medial surface, little nozzle diameter and even pressing plate in the moral ring is provided simultaneously, realize water the reaching unanimity of discharge when water jet sprays by nozzle, promptly spray flow is along the hoop uniform distribution of quenching bar.Bar after process furnace heating can be realized uniform cooling during water spray district by water ring, obtains all quenching effects preferably of tissue and linearity; Water spray also has the effect of cleaning the bar surface simultaneously.

Hardness test result:

Illustrate:

1, sampling condition: choose two with batch, same steel grade, with the test bar of smelting heat (batch) number, can guarantee the unanimity of the chemical ingredients of material.Two test materialss are selected identical Heating temperature and heat-up time for use, and one is adopted tank to quench, and one is adopted spray quenching.

2, sample 1 is taken from the test bar end of adopting tank to quench, and sample 2 is taken from the test bar end of adopting spray quenching.

Conclusion:

1, surface both hardness differs less, is that effect is the same substantially;

2, D/4 and centre hardness differ bigger, illustrate that the utility model sprinkler has reached good quenching effect, has obtained even more ideal tissue;

3, the hardness difference of the surface of the utility model water spray and heart portion is less is about 14HRC, and the surface that tank quenches relatively large with the hardness difference of heart portion be about 22HRC, illustrate that the uniformity of hardness aspect after use the utility model is sprayed water is better than former tank quenching

Linearity can be got by range estimation, and the linearity that former tank quenches is that 1m reaches 6mm, and adopt the utility model water spray be 1m about 2mm, respond well.

Tank quenching simultaneously is whole entry, but because the time of coming out of the stove is inconsistent, has certain temperature difference when drowning end to end.And the employing quenching form from the beginning to the end of the utility model water spray is consistent with the speed of coming out of the stove, promptly and real bar when quenching end to end the temperature of each one reach unanimity.

The utility model design has 3 water sprays to drench ring, and 3 water rings are centered close to same straight line, keeps equidistant, and each water ring upper spray nozzle is equally distributed on the water ring, and the diameter of each nozzle is 3mm.During work, current reach unanimity current hydraulic pressure in ring through stainless steel tube is subjected to sparing pressing plate when outflow enters water ring collision buffering and shunting, and the flow velocity when flowing out from nozzle again reaches unanimity, and hoop distributes and makes jet density also more approaching; Can also control discharge by adjusting water control valve according to the size of bar simultaneously, realize the refrigerative controllability, can obtain good quenching effect.

Claims

1. a bar integral quenching refrigerating unit comprises: cooling tower; Water tank that communicates with it of positioned beneath at cooling tower; Also comprise: a tank; It is characterized in that: the bottom of described tank links to each other with cooling tower by a water-break pipeline; On the water-break pipeline, settle a water pump; Settle an inlet channel and water tank to join on the top of tank; A cooling body is placed in the tank; Described cooling body comprises at least two water rings; Water ring links to each other with inlet channel by water control valve; The top of described water ring is the stainless steel tube that links to each other with water control valve, and the bottom of water ring is the spray pipe; Spray pipe and stainless steel tube are by being weldingly connected; Between the inner and outer wall of spray pipe, there is one deck to spare pressing plate; Spray the inner conical surface that is shaped as of pipe inboard; The bottom of inner conical surface is a plane; Equally distributed little hole nozzle is arranged on the inner conical surface.

2. bar integral quenching refrigerating unit according to claim 1 is characterized in that: hydraulic pressure instrument, thermometer and y-type filter also are installed on described inlet channel.

3. bar integral quenching refrigerating unit according to claim 1 and 2 is characterized in that: described water ring is 3, and 3 water rings are centered close to same straight line, keeps equidistant.