Composite cooling device

Abstract

The invention discloses a composite cooling device, comprising: a frame; an upper cooling pool; an aeration pool; and a lower cooling pool. The composite cooling device according to the invention has relatively good stability and is thus movable.

Description

Technical Field

[0001] The invention relates to a composite cooling device. Background Art

[0002] The cooling devices used in industry are relatively simple in function. In some specific fields, such as the rapid cooling of metal workpieces after heat treatment, such as quenching, the workpieces often need to be quickly put into the quenching liquid.

[0003] The quenching liquid often needs to be placed in a given water tank. Usually, in order to meet the convenience of operation, the water tank needs to have a certain support height. Therefore, a bracket is set under the water tank to support the water tank to a height that matches other equipment. After the quenching liquid is placed in the water tank, due to the high center of gravity, a relatively high requirement is placed on the support stability of the bracket, so a fixed structure is adopted. It is usually impossible to construct a mobile structure. It is generally used as a fixed facility in the workshop, and its location adaptability is relatively poor.

[0004] Chinese patent document CN207614872U discloses a rapid cooling tank for a metal workpiece rapid cooling experiment. The rapid cooling tank is essentially a composite cooling device, which includes a main cooling tank, a leaking pipe and a preliminary cooling tank. When in use, the metal workpiece is first placed on the inside of the preliminary cooling tank, and then cooled in the main cooling tank. The main cooling tank and the preliminary cooling tank are connected through a leaking pipe. After the water in the main cooling tank cools the workpiece, a temperature rise will occur, and then the water with the temperature rise will perform preliminary cooling on the workpiece in the preliminary cooling tank. Overall, it is equivalent to cooling the workpiece twice. The coolant used for the two coolings is based on circulation, and under the condition of achieving cascade cooling, the workpiece will not be quenched. However, for example, quenching, which itself uses coolant to quickly cool the workpiece, cascade cooling is not very meaningful. For slowly cooled workpieces, water cooling itself is difficult to achieve, especially spraying. In fact, for rapid cooling, the workpiece is directly immersed in the coolant, and the workpiece being processed is usually cooled by spraying.

[0005] Chinese patent document CN107388694A discloses a workpiece cooling system, which is provided with a cooling tank, a hot oil tank and a hot oil condenser. The basic cooling method is also spray cooling, and the ultimate goal is to make the workpiece uniformly cooled. As mentioned above, uniform cooling is usually not achievable in the spray state. The workpiece being processed has to be cooled by spraying when oil immersion is not possible. The inventor believes that it is more appropriate to use oil immersion after the workpiece is separated from the machine tool and other processing equipment. Summary of the invention

[0006] The object of the present invention is to provide a composite cooling device which has relatively good stability and is thus movable.

[0007] In an embodiment of the present invention, a composite cooling device is provided, comprising:

[0008] A frame having a given height and having a first end and a second end opposite to the first end in a predetermined horizontal direction;

[0009] An upper cooling pool is installed on the top of the frame along the predetermined horizontal direction and is offset to the first end side of the frame;

[0010] An aeration tank is installed on the frame, the installation position is the same height as or lower than the upper cooling tank, and is offset to the second end side of the frame; a plurality of aeration heads are arranged in the aeration tank; a valve or a first water pumping device is arranged between the aeration tank and the upper cooling tank;

[0011] A lower cooling tank is installed at the bottom of the frame, and the volume of the lower cooling tank is greater than or equal to twice the volume of the upper cooling tank; a cooling pipeline, a cooling liner or a heat sink for cooling the gas to be cooled is arranged in the lower cooling tank, and the air outlet end of the cooling pipeline, the cooling liner or the heat sink is connected to the aeration head; a guide pipe is arranged between the lower cooling tank and the aeration tank, and a valve is arranged on the guide pipe; a second water pumping device is arranged between the lower cooling tank and the upper cooling tank.

[0012] In the above composite cooling device, optionally, the lower cooling tank is located below the aeration tank;

[0013] The draft tube is offset at the second end of the aeration tank;

[0014] The lower cooling pool is provided with a plurality of filter plates from the second end to the first end to divide the lower cooling pool into a plurality of small pools which are guided by the filter plates in sequence;

[0015] The small pool located at the first end is the water source pool of the second water pumping device.

[0016] Optionally, in the vertical direction, the cooling pipeline, cooling liner or heat sink is arranged in the lower middle part of the lower cooling pool.

[0017] Optionally, a storage rack is provided in the upper cooling pool.

[0018] Optionally, the upper cooling tank and the aeration tank are connected in a direction from the first end to the second end to form an upper assembly;

[0019] A guide rail extending from the first end to the second end is provided on the upper assembly;

[0020] Correspondingly, a slide seat is provided which cooperates with the guide rail to form a guide rail pair, and an air cooling device is installed on the slide seat.

[0021] Optionally, the air cooling device is a group of fans arranged on the slide.

[0022] Optionally, the aeration head is equipped with an aeration fan, the inlet of the aeration fan is connected to the air outlet, and the outlet of the aeration fan is connected to the aeration head.

[0023] Optionally, the frame is provided with casters.

[0024] Optionally, the bottom of the aeration tank is an inclined bottom with a first end side being higher and a second end side being lower.

[0025] Optionally, the first water pumping device and the second water pumping device are installed on the first end side of the lower cooling tank.

[0026] In an embodiment of the present invention, the provided composite cooling device has an upper cooling tank, an aeration tank and a lower cooling tank, wherein the lower cooling tank is located at the bottom of the frame, which serves as a functional cooling tank on the one hand, and can constitute a counterweight on the other hand, so that the center of gravity of the entire composite cooling device is lower and the stability is better, so that it can be configured as a mobile composite cooling device.

[0027] Since the lower cooling pool is covered under the upper cooling pool and the aeration pool, it is not used for cooling the workpiece, but can be used for gas cooling. A cooling pipeline, a cooling liner or a heat sink is set in the lower cooling pool for passing the gas to be cooled, which is used for gas cooling. The cooled gas is aerated through the aeration pool, so that the dust in the gas is adsorbed by the water in the aeration pool.

[0028] In addition, the coolant can flow between the lower cooling pool, the upper cooling pool and the aeration pool. For example, when the water temperature in the upper cooling pool is high, it can be introduced into the aeration pool. The high water temperature does not affect the realization of the aeration function. During the aeration process, the water temperature decreases. Then it is introduced into the lower cooling pool to cool the gas. It can also be configured with other functions, such as purifying the coolant in the lower cooling pool. Overall, composite cooling can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of a composite cooling device in one embodiment.

[0030] Figure 2 It is a schematic diagram of the front structural view of a composite cooling device in one embodiment.

[0031] Figure 3 Schematic diagram of the top view of the composite cooling device in one embodiment.

[0032] In the figure: 1. casters, 2. frame, 3. reinforcement beam, 4. motor reducer, 5. transmission shaft, 6. upper cooling tank, 7. guide rail, 8. fan unit, 9. pump unit, 10. air inlet pipe, 11. lower cooling tank, 12. aeration tank, 13. filter plate, 14. aeration pipe, 15. guide pipe, 16. partition, 17. aeration head. DETAILED DESCRIPTION

[0033] See also Figure 1 and Figure 2 As shown, the upper cooling tank 6 and the aeration tank 12 of the composite cooling device constitute a left-right structure, which is generally referred to as an upper assembly. The upper assembly and the lower cooling tank 11 constitute an upper-lower structure.

[0034] Overall, in Figures 1 to 3 In the structure shown, the upper assembly and the lower cooling tank 11 are a strip structure. The side of the upper assembly where the upper cooling tank 6 is located is the first side, and the side where the aeration tank 12 is located is the second side. Accordingly, the upper assembly has a definite first end and a second end in this reference system, and it is obvious that the first end is opposite to the second end.

[0035] from Figure 1 and Figure 2 As can be seen in the figure, the rack 2 equipped with the composite cooling device is the same as the conventional cooling pool rack, and the cooling pool is installed at the designed height to adapt to the workshop working conditions. This belongs to the conventional design in the field and will not be repeated here.

[0036] Figure 3 As can be seen in the figure, the composite cooling device is a structure with a relatively large aspect ratio in a top view, and can be defined by the aforementioned first end and the second end. The left end in the figure is the aforementioned first end, and the right end is the aforementioned second end.

[0037] The upper cooling tank 6 and the aeration tank 12 are located between Figures 1 to 3 The left and right sides are connected sequentially, wherein the upper cooling tank 6 is arranged on the left side, and the aeration tank 12 is arranged on the right side.

[0038] Figures 1 to 3 The structure shown in is a basic configuration. In some embodiments, the height of the upper cooling tank 6 can be higher than the aeration tank 12. The coolant in the upper cooling tank 6 can be completely introduced into the aeration tank 12 by gravity-based self-flow. Moreover, since the workpiece cooling is carried out in the upper cooling tank 6, the slightly lower position of the aeration tank 12 does not affect the cooling of the workpiece.

[0039] When the gravity flow method is adopted, the upper cooling tank 6 and the aeration tank 12 can be connected by a pipeline with a valve, or by a partition plate, on which a gate valve is arranged. The cooling liquid can flow to the aeration tank 12 by gravity through the valve or the gate valve.

[0040] exist Figure 1 and 2 In the structure shown, the aeration tank 12 is roughly the same height as the upper cooling tank 6. Under this condition, the coolant in the upper cooling tank 6 cannot flow into the aeration tank 12 by itself, and a special water pumping device is required to pump the coolant in the upper cooling tank 6 into the aeration tank 12.

[0041] It should be noted that the cooling pool used in the factory is usually equipped with an independent cooling system, and the period when the temperature of the cooling pool rises to a set high value due to cooling the workpiece is relatively long. In other words, based on the embodiment of the present invention, the coolant in the aeration tank 12 is replaced by replacing the coolant. During the coolant replacement cycle of the upper cooling tank 6, the coolant in the aeration tank 12 can completely reach the usable state of the upper cooling tank 6 based on natural cooling. However, in the embodiment of the present invention, the coolant cooled by the aeration tank 12 is not directly introduced into the upper cooling tank 6, but is introduced into the lower cooling tank, so as to facilitate the replacement of the coolant based on a triangular relationship, rather than a one-to-one replacement. In this replacement process, the lower cooling tank 11 is equivalent to a transfer tank.

[0042] The bottom of the aeration tank 12 is provided with a plurality of aeration heads 17. The initial temperature of the coolant introduced into the aeration tank 12 from the upper cooling tank 6 is high, but it does not affect the aeration dust removal effect, and can make the best use of it instead of simply letting the coolant cool naturally.

[0043] The lower cooling pool 11 is installed at the bottom of the rack 2, which can significantly reduce the center of gravity of the composite cooling device, so its stability is relatively good. In addition, the volume of the lower cooling pool 11 is required to be greater than or equal to twice the volume of the upper cooling pool 6. Figures 1 to 3 In the structure shown, there is also an air cooling device, that is, the fan unit 8 shown in the figure, for slow cooling. In such applications, the coolant can be partially introduced into the lower cooling pool 11 and partially accommodated in the aeration pool 12. The upper cooling pool 6 constitutes a dry pool, and a rack is used to carry the workpiece, and then the fan unit 8 is used for slow cooling. In this way, the complexity of the cooling device can be further improved.

[0044] Correspondingly, a heat exchange component is provided in the lower cooling pool 11, the internal fluid (hot fluid) of the heat exchange component is gas, and the external fluid (cold fluid) is coolant. Since the lower cooling pool 11 is a trough structure, relatively more heat exchangers are applicable, such as cooling pipes, cooling liners or heat sinks. Fluids to be cooled, such as gas, flow through these heat exchangers, and the heat exchangers are built into the lower cooling pool 11 and immersed in the coolant.

[0045] As mentioned above, the coolant needs to be replaced at a relatively long period of time based on the temperature. Therefore, after being introduced from the upper cooling tank 6 to the aeration tank 12, the coolant has enough time to cool down. When the temperature of the upper coolant 6 is too high and needs to be replaced again, the coolant in the aeration tank 12 is introduced into the lower cooling tank 11, and then the coolant in the upper cooling tank 6 is introduced into the aeration tank 12, and the liquid in the lower cooling tank is partially introduced into the upper cooling tank 6.

[0046] Since the composite cooling device in the embodiment of the present invention has various usage modes, for the usage mode described in the previous paragraph, the applicable aeration tank 12 is sufficient to accommodate the amount of coolant introduced from the upper cooling tank 6 while already storing coolant.

[0047] In addition, if there is no cooling liquid in the aeration tank 12 at this time, the volume requirement for the aeration tank 12 is relatively low. The above are all simple calculations in this field and will not be repeated here.

[0048] Correspondingly, the heat exchanger is connected to the aeration head 17 to perform aeration to reduce the dust content in the gas before discharging.

[0049] exist Figure 2 In the structure shown, a guide pipe 15 is provided between the lower cooling pool 11 and the aeration pool 12 , and a valve is provided on the guide pipe 15 ; a second water pumping device is provided between the lower cooling pool 11 and the upper cooling pool 6 .

[0050] Figure 1 In the structure shown, below the upper assembly, the lower cooling pool 11 is staggered with the upper cooling pool 6 in the horizontal direction, and the lower cooling pool 11 is located below the aeration pool 12 to reduce thermal interference in the lower cooling pool 11 .

[0051] Furthermore, it should be understood that the cooling of the gas does not necessarily need to be performed in real time.

[0052] exist Figure 2 In the illustrated structure, the draft tube 15 is offset at the second end of the aeration tank 12 .

[0053] Furthermore, the lower cooling pool 11 is provided with a plurality of filter plates 13 from the second end to the first end, so as to divide the lower cooling pool 11 into a plurality of small pools which are guided in sequence through the filter plates 13, so as to filter the coolant. Accordingly, the small pool located at the first end is the water source pool of the second water pumping device, so as to ensure the relative cleanliness of the fluid pumped into the upper cooling pool 6.

[0054] As for the heat exchanger, as mentioned above, the gas to be cooled belongs to the thermal fluid in the heat exchange equipment. Therefore, in the vertical direction, the heat exchanger is arranged in the lower middle part of the lower cooling pool 11 to adapt to heat convection.

[0055] exist Figure 1 In the structure shown, a guide rail 7 is provided on the upper assembly from the first end to the second end. Accordingly, a slide seat is provided to cooperate with the guide rail 7 to form a guide rail pair, and an air cooling device is installed on the slide seat, such as Figure 1 The fan unit 8 shown in the figure is first pushed to the side of the aeration tank 12 when air cooling is required, and the workpiece to be cooled is placed on the shelf in the upper cooling tank 6, and then the fan unit 8 is reset to the top of the upper cooling tank 6, and the fan unit 8 is used to cool the workpiece.

[0056] The gas to be purified by aeration generally has a certain initial pressure, such as the gas discharged by the engine, which can reach a pressure of several atmospheres or more, which can fully meet the aeration requirements. However, there is also a situation where the air source pressure is insufficient. For this reason, the aeration head 12 is equipped with an aeration fan, the inlet of which is connected to the air outlet, and the outlet of which is connected to the aeration head 12, so as to perform aeration by increasing the pressure.

[0057] As mentioned above, due to the existence of the lower cooling pool 11, the center of gravity of the composite cooling device moves downward, and the overall stability is improved. Under this condition, the frame 2 is provided with casters 1, and the composite cooling device can be moved by the casters 1.

[0058] A locking device may be provided on the caster 1, which is a commonly used technical means in the field of caster technology and will not be described in detail here.

[0059] In some embodiments, the bottom of the aeration tank 12 is an inclined bottom with a first end side being higher and a second end side being lower, so as to facilitate the realization of the cooling liquid being discharged by gravity.

[0060] exist Figure 1 In the structure shown, the pump group 9 is located at the right end of the lower cooling pool 11, that is, the first end. The weight of the pump group is relatively heavy, which is conducive to reconstructing the center of gravity position. The adapted pump groups are the aforementioned first pumping device and second pumping device.

Claims

1. A composite cooling device, characterized in that: include: A frame having a given height and having a first end and a second end opposite to the first end in a predetermined horizontal direction; An upper cooling pool is installed on the top of the frame along the predetermined horizontal direction and is offset to the first end side of the frame; An aeration tank is installed on the frame, the installation position is the same height as or lower than the upper cooling tank, and is offset to the second end side of the frame; a plurality of aeration heads are arranged in the aeration tank; a valve or a first water pumping device is arranged between the aeration tank and the upper cooling tank; A lower cooling pool is installed at the bottom of the frame, and the volume of the lower cooling pool is greater than or equal to twice the volume of the upper cooling pool; a cooling pipeline, a cooling liner or a heat sink for cooling the gas to be cooled is arranged in the lower cooling pool, and the gas outlet end of the cooling pipeline, the cooling liner or the heat sink is connected to the aeration head; a guide pipe is arranged between the lower cooling pool and the aeration pool, and a valve is arranged on the guide pipe; a second water pumping device is arranged between the lower cooling pool and the upper cooling pool; The lower cooling tank is located below the aeration tank; The draft tube is offset at the second end of the aeration tank; The lower cooling pool is provided with a plurality of filter plates from the second end to the first end to divide the lower cooling pool into a plurality of small pools which are guided by the filter plates in sequence; The small pool located at the first end is the water source pool of the second water pumping device; The aeration head is equipped with an aeration fan, the inlet of the aeration fan is connected to the air outlet, and the outlet of the aeration fan is connected to the aeration head; The frame is provided with casters; The bottom of the aeration tank is an inclined bottom with a first end side being higher and a second end side being lower; The first water pumping device and the second water pumping device are installed on the first end side of the lower cooling tank.

2. The composite cooling device according to claim 1, characterized in that: In the vertical direction, the cooling pipeline, cooling liner or heat sink is arranged in the lower middle part of the lower cooling pool.

3. The composite cooling device according to claim 1 or 2, characterized in that: A storage rack is provided in the upper cooling pool.

4. The composite cooling device according to claim 3, characterized in that: The upper cooling tank and the aeration tank are connected in a direction from the first end to the second end to form an upper assembly; A guide rail extending from the first end to the second end is provided on the upper assembly; Correspondingly, a slide seat is provided which cooperates with the guide rail to form a guide rail pair, and an air cooling device is installed on the slide seat.

5. The composite cooling device according to claim 4, characterized in that: The air cooling device is a group of fans arranged on the slide.

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