Waste heat recovery cooling bin based on V-method casting

Abstract

The utility model discloses a waste heat recovery cooling bin based on V-method casting, which comprises a heat exchange assembly, the heat exchange assembly comprises an induced draft fan, the air inlet end of the induced draft fan is communicated with a gas transmission header pipe, the air outlet end of the induced draft fan is communicated with a box body, a U-shaped bent pipe is arranged in the box body, one end of the U-shaped bent pipe is connected with the air outlet end of the induced draft fan, and the other end of the U-shaped bent pipe is connected with the gas transmission header pipe. And the other end of the U-shaped bent pipe penetrates through the box body and extends to the outside. According to the casting cooling device, through the arrangement of the heat exchange assembly, high-temperature air generated by cooling of a casting in each cooling cavity is guided into the U-shaped bent pipe in the box body, and a liquid medium (such as water or heat conduction oil of a specific type) stored in the box body is arranged outside the U-shaped bent pipe; heat in air can be effectively transmitted to liquid, the heated liquid can be used for other industrial processes according to actual requirements, such as preheating water, providing domestic hot water or driving a steam generator, and therefore the purposes of energy conservation and emission reduction are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to foundry cooling technical field especially relates to the waste heat recovery cooling bin based on V method casting. BACKGROUND

[0002] V method casting is also called vacuum sealed molding casting, and it is an advanced sand mold casting process. This process can produce high-precision and good surface finish castings and reduce defects caused by binders in traditional sand mold casting.

[0003] The cooling bin of V method casting is a device specially designed for processing high-temperature castings after V method casting, and its main purpose is to accelerate the cooling process of the castings. Many cooling bins in the prior art do not have a waste heat recovery mechanism, which makes the heat released during the cooling process of the castings not effectively recycled, and this part of energy is wasted, which not only increases energy consumption but also reduces the energy utilization rate of the entire production process. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides the following technical scheme:

[0005] The utility model provides a waste heat recovery cooling bin based on V method casting, which comprises:

[0006] The bin body comprises a plurality of independent cooling chambers, and the top of the bin body is provided with a gas supply main pipe in communication with the cooling chambers;

[0007] The heat exchange assembly comprises an air induction fan, the air inlet end of the air induction fan is in communication with the gas supply main pipe, the air outlet end of the air induction fan is communicated with a box body, a U-shaped bend pipe is arranged in the box body, one end of the U-shaped bend pipe is connected with the air outlet end of the air induction fan, and the other end of the U-shaped bend pipe extends to the outside through the box body;

[0008] The box body stores liquid medium inside, the airflow in the U-shaped bend pipe exchanges heat with the liquid medium, and the box body is further provided with a heat preservation sleeve outside.

[0009] As a preferred embodiment of the above technical scheme, the heat preservation sleeve comprises a reflective layer, a heat preservation layer and a protective layer from inside to outside.

[0010] As a preferred embodiment of the above technical scheme, the box body is provided with a water inlet pipe and a water outlet pipe in communication with the inside of the box body, the water inlet pipe is arranged at the top of the box body, and the water outlet pipe is arranged at the bottom of the box body.

[0011] As a preferred embodiment of the above technical scheme, the front side of the cooling chamber is open, a support frame for supporting the castings is arranged at the lower part of each cooling chamber, and a baffle is arranged at the upper front side of the cooling chamber.

[0012] As the preferred technical solution of the above, the upper part of the cooling chamber is communicated with a gas conveying branch pipe, and the other end of the gas conveying branch pipe is communicated with a gas conveying main pipe.

[0013] The utility model discloses a beneficial effect is:

[0014] The utility model discloses a heat exchange component is set up, the high temperature air that the casting cooling produced in each cooling chamber is introduced into the U type elbow pipe in the inside of the box, and the outside of U type elbow pipe is the liquid medium (such as water or special type heat conducting oil) stored in the box, by this mode, can effectively transfer the heat in the air to the liquid, and the liquid after heating can be used for other industrial processes according to actual demand, for example, preheating water, providing domestic hot water or driving steam generator etc. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 As shown in the whole schematic diagram of the waste heat recovery cooling bin in the embodiment,

[0016] Figure 2 As shown in the cross section structure schematic diagram of the heat exchange component in the embodiment,

[0017] Figure 3 As shown in the hierarchical schematic diagram of the heat preservation sleeve in the embodiment,

[0018] Reference signs: 10, bin body, 11, cooling chamber, 12, support frame, 13, baffle, 21, gas conveying branch pipe, 22, gas conveying main pipe, 23, air blower, 30, heat exchange component, 31, box, 311, water inlet pipe, 312, water outlet pipe, 32, U type elbow pipe, 40, heat preservation sleeve, 41, reflection layer, 42, heat preservation layer, 43, protection layer. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely below in conjunction with the embodiment.

[0020] EMBODIMENT

[0021] As shown in the whole schematic diagram of the waste heat recovery cooling bin in the embodiment, Figure 1 , Figure 2 As shown in the cross section structure schematic diagram of the heat exchange component in the embodiment, Figure 1 As shown in the whole schematic diagram of the waste heat recovery cooling bin in the embodiment, Figure 2 As shown in the cross section structure schematic diagram of the heat exchange component in the embodiment,

[0022] The device comprises:

[0023] The bin body 10 comprises a plurality of independent cooling chambers 11, and the top of the bin body 10 is provided with a gas conveying main pipe 22 communicated with the cooling chambers 11.

[0024] The heat exchange assembly 30 includes an induced draft fan 23. The air inlet of the induced draft fan 23 is connected to the main air supply pipe 22, and the air outlet of the induced draft fan 23 is connected to a housing 31. A U-shaped bend 32 is installed inside the housing 31. One end of the U-shaped bend 32 is connected to the air outlet of the induced draft fan 23, and the other end of the U-shaped bend 32 extends through the housing 31 to the outside.

[0025] The liquid medium is stored inside the box 31, and the airflow inside the U-shaped bend 32 exchanges heat with the liquid medium.

[0026] Each cooling chamber 11 is used to contain the high-temperature casting that has just come out of the casting process. In this embodiment, the number of cooling chambers 11 is set to four. The main air supply pipe 22 is connected to each cooling chamber 11 and is used to collect the high-temperature air emitted from the casting and flowing upward.

[0027] The induced draft fan 23 is installed after the main air supply pipe 22. It is responsible for drawing the high-temperature air collected in each cooling chamber 11 and guiding it to the heat exchange component 30. Specifically, the air is introduced into the U-shaped bend 32 inside the housing 31, while the outside of the U-shaped bend 32 is the liquid medium (such as water or a specific type of heat transfer oil) stored in the housing 31. In this way, the heat in the air can be effectively transferred to the liquid, thereby realizing the recovery and utilization of heat.

[0028] After heat exchange, the high-temperature air cools down and is eventually discharged into the atmosphere, or it can be discharged after certain filtration treatment. The heated liquid can be used in other industrial processes according to actual needs, such as preheating water, providing domestic hot water, or driving steam generators, thereby achieving the purpose of energy conservation and emission reduction.

[0029] Furthermore, the outer casing 31 is fitted with an insulation sleeve 40.

[0030] The insulation jacket 40 can reduce heat loss from the outer wall of the enclosure 31 to the surrounding environment.

[0031] like Figure 3 As shown, Figure 3 The diagram shown is a schematic representation of the layers of the insulation sleeve in the embodiment;

[0032] The insulation jacket 40 includes, from the inside out, a reflective layer 41, an insulation layer 42, and a protective layer 43.

[0033] The reflective layer 41 is tightly attached to the surface of the box 31. The reflective layer 41 is mainly used to reduce heat radiation loss and improve the overall heat preservation effect by reflecting heat back into the box 31. The material of the reflective layer 41 can be a high reflectivity material such as aluminum foil or metallized polyester film.

[0034] The main function of the thermal insulation layer 42 is to prevent heat loss through conduction and convection. The thermal insulation layer 42 is made of high-efficiency insulation materials such as polyurethane foam (PU), rock wool, glass wool, or aerogel felt.

[0035] The main purpose of the protective layer 43 is to protect the internal thermal insulation layer 42 from external environmental factors such as mechanical damage, ultraviolet radiation, and moisture erosion. The material of the protective layer 43 includes stainless steel sheet, galvanized steel sheet, aluminum alloy sheet, or weather-resistant plastic.

[0036] As shown in Figure 2 , Figure 2 The cross-sectional structure of the heat exchange assembly in the embodiment is shown.

[0037] The tank 31 is provided with a water inlet pipe 311 and a water outlet pipe 312 that communicate with the inside of the tank 31. The water inlet pipe 311 is arranged at the top of the tank 31, and the water outlet pipe 312 is arranged at the bottom of the tank 31.

[0038] The water inlet pipe 311 and the water outlet pipe 312 are used to introduce and discharge liquid media in the tank 31. Valves that function as control switches are arranged on the water inlet pipe 311 and the water outlet pipe 312.

[0039] As shown in Figure 1 , Figure 1 The overall schematic diagram of the waste heat recovery cooling bin in the embodiment is shown.

[0040] The cooling chamber 11 is open at the front side, and each cooling chamber 11 is provided with a support frame 12 for holding the casting at the lower part. The upper part of the cooling chamber 11 is provided with a baffle 13 at the front side.

[0041] The upper part of the cooling chamber 11 is provided with a gas delivery branch pipe 21, and the other end of the gas delivery branch pipe 21 communicates with a gas delivery main pipe 22.

[0042] The front side of each cooling chamber 11 is designed to be open, which facilitates the operator to put or take out the high-temperature casting into or out of the cooling chamber 11. The support frame 12 is arranged at the lower part of the cooling chamber 11, which not only provides stable support for the casting but also allows air (or other cooling medium) to flow under the casting, thereby enhancing the cooling effect. Specifically, the support frame 12 can be adjusted according to the size and shape of the casting to adapt to different production needs.

[0043] The baffle 13 located at the upper front side of the cooling chamber 11 helps to ensure that air can be more effectively collected and discharged to the gas delivery main pipe 22 through the gas delivery branch pipe 21.

[0044] Working principle: high temperature castings are placed on the support frame 12 in the cooling chamber 11, and are naturally cooled or accelerated cooling by forced ventilation, etc., as the castings cool, start the air blower 23, the high temperature air generated in the cooling chamber 11 is guided by the baffle 13, and is transported to the gas supply main pipe 22 through the gas supply branch pipe 21, and then is sent into the U-shaped bend pipe 32 in the box 31, the high temperature air in the U-shaped bend pipe 32 is indirectly contacted with the liquid medium (such as water) in the box 31 for heat exchange, so that the liquid is heated, and the air is cooled and discharged.

[0045] The heated liquid can be discharged from the box 31 through the water outlet pipe 312 for other industrial processes or domestic use, realizing effective utilization of waste heat.

[0046] The above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto.

Claims

1. Waste heat recovery cooling bin based on V-process casting, characterized in that, The application relates to a cooling device for casting, which comprises the following parts: a warehouse (10) comprising a plurality of independent cooling chambers (11), the top of the warehouse (10) being provided with a gas supply main (22) communicating with the cooling chambers (11); a heat exchange assembly (30) comprising an air blower (23), the air inlet end of the air blower (23) communicating with the gas supply main (22), the air outlet end of the air blower (23) being communicated with a box (31), the box (31) being provided with a U-shaped bend pipe (32), one end of the U-shaped bend pipe (32) being connected with the air outlet end of the air blower (23), the other end of the U-shaped bend pipe (32) extending to the outside through the box (31); the box (31) internally storing liquid medium, the airflow in the U-shaped bend pipe (32) exchanging heat with the liquid medium, the box (31) externally being further provided with a heat preservation sleeve (40).

2. The V-process based waste heat recovery cooling bin according to claim 1, characterized in that, The heat preservation sleeve (40) comprises, from inside to outside, a reflecting layer (41), a heat preservation layer (42) and a protective layer (43).

3. The V-process based afterheat recovery cooling bin according to claim 1, characterized in that, The box (31) is provided with a water inlet pipe (311) and a water outlet pipe (312) communicating with the inside of the box (31), the water inlet pipe (311) being arranged at the top of the box (31), and the water outlet pipe (312) being arranged at the bottom of the box (31).

4. The V-process based afterheat recovery cooling bin according to claim 1, characterized in that, The cooling chamber (11) is open at the front side, the lower part of each cooling chamber (11) being provided with a support frame (12) for supporting a casting, and the upper part of the cooling chamber (11) being provided with a baffle (13) at the front side.

5. The V-process based afterheat recovery cooling bin according to claim 1, characterized in that, The upper part of the cooling chamber (11) is communicated with a gas supply branch pipe (21), the other end of the gas supply branch pipe (21) being communicated with the gas supply main (22).

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