Cast-weld machine mold hot water energy recovery system

Abstract

The utility model discloses a hot water energy recovery system for a die of a cast-weld machine, which comprises a plurality of cast-weld machines, a waste heat recovery device, a reservoir, a hot water recovery device, a cold water return device and a heat cycle water outlet pipe, hot water outlets of the cast-weld machines are communicated with the waste heat recovery device through the hot water recovery device, cold water inlets of the cast-weld machines are communicated with the reservoir through the cold water return device, one end of the heat circulation water outlet pipe is connected with the waste heat recovery device, and the other end of the heat circulation water outlet pipe extends into one side of the reservoir. Therefore, the waste heat recovery device, the reservoir, the hot water recovery device, the cold water return device and the heat circulation water outlet pipe are matched to form a circulation loop for recycling hot water energy, recycling of mold cooling water is achieved, and manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy recovery, in particular to a hot water energy recovery system for a casting welding machine mold. Background Technique

[0002] A casting welding machine, also known as a full-automatic battery casting welding machine, is an efficient device widely used in industries such as casting, welding, and processing. The whole set of equipment includes a fixture, a mold, a melting furnace, a cooling device, and a demolding and entering the battery case device; during the casting process, it melts metal at a high temperature and then forms it through the mold and the cooling system to realize the production of workpieces; during its operation, it continuously needs to use mold cooling water to reduce the temperature of working parts or die-cast products with a certain degree of heat and take away the heat therein, so as to ensure the casting welding effect and improve the quality and precision of the products.

[0003] The temperature of the mold cooling water generated during the operation of the casting welding machine will finally reach 80 - 95 °C. The mold cooling water with heat can no longer be used for cooling, and at the same time, because it may carry other impurities after flowing through the working parts or die-cast products, it can only be discharged finally. In order to ensure the normal operation of the equipment, new mold cooling water needs to be refilled. Therefore, in the traditional casting welding process, a small amount of manufacturing cost will be increased, and a part of energy consumption will be lost. Content of the Utility Model

[0004] In order to solve the problems in the above background technique, the purpose of the utility model is to provide a hot water energy recovery system for a casting welding machine mold, which cools down the mold cooling water with heat discharged from the casting welding machine and recovers its heat through the cooperation of a hot water recovery device and a waste heat recovery device, and then sends the cooled mold cooling water back to the casting welding machine through a cold water return device for reuse.

[0005] To achieve the above purpose, the solution adopted by the utility model is as follows:

[0006] A hot water energy recovery system for a casting welding machine mold includes a number of casting welding machines. A hot water discharge port and a cold water inlet are respectively arranged at the drainage place of the mold equipment of each casting welding machine. Its characteristics are that: the hot water energy recovery system includes a waste heat recovery device, a water storage tank, a hot water recovery device, a cold water return device, and a hot water circulation outlet pipe. The hot water discharge ports of the number of casting welding machines are respectively connected to the waste heat recovery device through the hot water recovery device, and their cold water inlets are respectively connected to the water storage tank through the cold water return device. One end of the hot water circulation outlet pipe is connected to the waste heat recovery device, and the other end extends to the inside of one side of the water storage tank. Thus, the waste heat recovery device, the water storage tank, the hot water recovery device, the cold water return device, and the hot water circulation outlet pipe cooperate to form a circulation loop for hot water energy recovery and reuse.

[0007] Further, the hot water recovery device includes a plurality of hot water discharge pipes and a hot water recovery pipe. One ends of the plurality of hot water discharge pipes are respectively communicated with the hot water discharge outlets of a plurality of casting machines, and the other ends are respectively communicated with the hot water recovery pipe. The end of the hot water recovery pipe is connected to the waste heat recovery device.

[0008] Further, the waste heat recovery device includes a waste heat recovery unit, a tap water inlet pipe, and a hot tap water outlet pipe. The tap water inlet pipe, the hot tap water outlet pipe, the hot water circulation outlet pipe, and the hot water recovery pipe are respectively connected to the waste heat recovery unit.

[0009] Further, the waste heat recovery unit is provided with a first water inlet, a first water outlet, a second water inlet, and a second water outlet. One end of the hot water circulation outlet pipe is connected to the first water outlet, the end of the hot water recovery pipe is connected to the first water inlet, one end of the tap water inlet pipe is connected to the second water inlet, and one end of the hot tap water outlet pipe is connected to the second water outlet.

[0010] Further, the cold water return device includes a plurality of cold water inlet pipes, a cold water supply pipe, a circulation water pump, and a cold water suction pipe. One ends of the plurality of cold water inlet pipes are respectively communicated with the cold water inlets of a plurality of casting machines, and the other ends are respectively communicated with the cold water supply pipe. The end of the cold water supply pipe is connected to the front end of the cold water suction pipe through the circulation water pump, and the end of the cold water suction pipe extends downward to the bottom of the reservoir.

[0011] Further, a screen filter head is installed at the end of the cold water suction pipe.

[0012] The beneficial effects of the present utility model are as follows: The hot water energy recovery system for the casting machine mold cooperates with the hot water recovery device and the waste heat recovery device to cool the mold cooling water with heat discharged from the casting machine and recover its heat, and then sends the cooled mold cooling water back to the casting machine for reuse through the cold water return device, thereby reducing the manufacturing cost; at the same time, the tap water after exchanging heat with the mold cooling water with heat can be heated to 60-70 °C to obtain hot tap water, which can be sent out for other uses, improving the utilization efficiency of thermal energy, and further saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic partial structure of the present utility model Figure 1 ;

[0015] Figure 3 is a schematic partial structure of the present utility model Figure 2 。

[0016] In the figure, 1 is a casting and welding machine, 2 is a waste heat recovery device, 21 is a waste heat recovery unit, 22 is a tap water inlet pipe, 23 is a hot tap water outlet pipe, 3 is a water storage tank, 4 is a hot water recovery device, 41 is a hot water discharge pipe, 42 is a hot water recovery pipe, 5 is a cold water return device, 51 is a cold water inlet pipe, 52 is a cold water supply pipe, 53 is a circulation water pump, 54 is a cold water suction pipe, 541 is a screen filter head, and 6 is a hot water circulation outlet pipe. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] As shown in the Figures 1-3 accompanying drawings, a hot water energy recovery system for a casting and welding machine mold in an embodiment of the present invention includes a plurality of casting and welding machines 1. At the drainage places of the mold devices of each casting and welding machine 1, a hot water discharge port and a cold water inlet are respectively provided. The hot water energy recovery system includes a waste heat recovery device 2, a water storage tank 3, a hot water recovery device 4, a cold water return device 5, and a hot water circulation outlet pipe 6. The hot water discharge ports of the plurality of casting and welding machines 1 are respectively connected to the waste heat recovery device 2 through the hot water recovery device 4, and their cold water inlets are respectively connected to the water storage tank 3 through the cold water return device 5. One end of the hot water circulation outlet pipe 6 is connected to the waste heat recovery device 2, and the other end extends to the inside of one side of the water storage tank 3. Thus, the waste heat recovery device 2, the water storage tank 3, the hot water recovery device 4, the cold water return device 5, and the hot water circulation outlet pipe 6 cooperate to form a circulation loop for hot water energy recovery and reuse, realizing the circulation and reuse of the mold cooling water and reducing the manufacturing cost.

[0019] The hot water recovery device 4 includes a plurality of hot water discharge pipes 41 and hot water recovery pipes 42. One ends of the plurality of hot water discharge pipes 41 are respectively connected to the hot water discharge ports of the plurality of casting and welding machines 1, and the other ends are respectively connected to the hot water recovery pipes 42. The end of the hot water recovery pipe 42 is connected to the waste heat recovery device 2.

[0020] The waste heat recovery device 2 includes a waste heat recovery unit 21, a tap water inlet pipe 22, and a hot tap water outlet pipe 23. The tap water inlet pipe 22, the hot tap water outlet pipe 23, the hot water circulation outlet pipe 6, and the hot water recovery pipe 42 are respectively connected to the waste heat recovery unit 21.

[0021] The waste heat recovery device 21 is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet. One end of the hot water circulation pipe 6 is connected to the first water outlet, the end of the hot water recovery pipe 42 is connected to the first water inlet, one end of the tap water inlet pipe 22 is connected to the second water inlet, and one end of the tap hot water outlet pipe 23 is connected to the second water outlet.

[0022] Specifically, the waste heat recovery device 21 adopts a liquid-liquid type, which mainly consists of a heat tube bundle and a shell; the shell is usually a rectangular structure, and there is a partition in the center of the interior, dividing the shell into two parts, namely a heat flow channel and a cold flow channel. The tap water inlet pipe 22 and the tap hot water outlet pipe 23 are connected to the cold flow channel, while the hot water circulation pipe 6 and the hot water recovery pipe 42 are connected to the heat flow channel; when the hot fluid flows in the heat flow channel and the cold fluid flows in the cold flow channel, heat can be transferred from the hot fluid to the cold fluid through the heat pipes, thereby realizing heat exchange.

[0023] The cold water return device 5 includes a plurality of cold water inlet pipes 51, a cold water delivery pipe 52, a circulation water pump 53 and a cold water extraction pipe 54. One end of each of the plurality of cold water inlet pipes 51 is respectively communicated with the cold water inlets of a plurality of casting machines 1, and the other ends are respectively communicated with the cold water delivery pipe 52. The end of the cold water delivery pipe 52 is connected to the front end of the cold water extraction pipe 54 through the circulation water pump 53, and the end of the cold water extraction pipe 54 extends downward to the bottom of the reservoir 3; the circulation water pump 53 and the cold water extraction pipe 54 cooperate to pump the mold cooling water in the reservoir 3 into the cold water delivery pipe 52.

[0024] A screen filter head 541 is installed at the end of the cold water extraction pipe 54, which can play a filtering role.

[0025] When the present utility model is specifically implemented, its working principle is as follows:

[0026] The hot water recovery device 4 recovers the mold cooling water with a temperature of 80 - 95 °C discharged from a plurality of casting machines 1 into the waste heat recovery device 21. At the same time, the waste heat recovery device 21 introduces tap water through the tap water inlet pipe 22. Subsequently, the mold cooling water with temperature exchanges heat with the tap water in the waste heat recovery device 21. After the temperature of the mold cooling water drops, it is discharged into the reservoir 3 through the hot water circulation pipe 6 for storage; the cooled mold cooling water stored in the reservoir 3 can be pumped into the cold water delivery pipe 52 through the cooperation of the circulation water pump 53 and the cold water extraction pipe 54, transported to each cold water inlet pipe 51 by the cold water delivery pipe 52, and then sent back to the casting machines 1 through the cold water inlet pipes 51 for reuse.

[0027] Among them, the water temperature of the tap water after heat exchange can be raised to 60-70 °C to obtain hot tap water. There is no energy consumption in this heat exchange process. Since the waste heat recovery device 21 is an independent heat exchange double channel, the hot tap water after heat exchange is very clean and can be sent out for other uses, improving the utilization efficiency of thermal energy and thus further saving energy.

[0028] The above has made a detailed description of the present utility model. As described above, it is only the preferred embodiment of the present utility model, and the scope of implementation of the present utility model cannot be limited. That is, all equal changes and modifications made according to the scope of this application should still fall within the scope covered by the present utility model.

Claims

1. A hot water energy recovery system for a casting welding machine mold, comprising a number of casting welding machines. A hot water discharge port and a cold water inlet are respectively arranged at the drainage part of the mold equipment of each casting welding machine. It is characterized in that: The hot water energy recovery system includes a waste heat recovery device, a water storage tank, a hot water recovery device, a cold water return device, and a hot water circulation outlet pipe. The hot water discharge outlets of the several welding machines are respectively connected to the waste heat recovery device through the hot water recovery device, and their cold water inlets are respectively connected to the water storage tank through the cold water return device. One end of the hot water circulation outlet pipe is connected to the waste heat recovery device, and the other end extends to the inside of one side of the water storage tank. Thus, the waste heat recovery device, the water storage tank, the hot water recovery device, the cold water return device, and the hot water circulation outlet pipe cooperate to form a circulation loop for the recovery and reuse of hot water energy.

2. The hot water energy recovery system for the casting and welding machine mold according to claim 1, wherein: The hot water recovery device includes several hot water discharge pipes and a hot water recovery pipe. One end of each of the several hot water discharge pipes is respectively connected to the hot water discharge outlets of the several welding machines, and the other end of each is respectively connected to the hot water recovery pipe. The end of the hot water recovery pipe is connected to the waste heat recovery device.

3. The hot water energy recovery system for the casting and welding machine mold according to claim 2, wherein: The waste heat recovery device includes a waste heat recovery unit, a tap water inlet pipe, and a hot tap water outlet pipe. The tap water inlet pipe, the hot tap water outlet pipe, the hot water circulation outlet pipe, and the hot water recovery pipe are respectively connected to the waste heat recovery unit.

4. The hot water energy recovery system for the casting and welding machine mold according to claim 3, characterized in that: The waste heat recovery unit is provided with a first water inlet, a first water outlet, a second water inlet, and a second water outlet. One end of the hot water circulation outlet pipe is connected to the first water outlet, the end of the hot water recovery pipe is connected to the first water inlet, one end of the tap water inlet pipe is connected to the second water inlet, and one end of the hot tap water outlet pipe is connected to the second water outlet.

5. The hot water energy recovery system for the casting and welding machine mold according to claim 1, wherein: The cold water return device includes several cold water inlet pipes, a cold water supply pipe, a circulation water pump, and a cold water suction pipe. One end of each of the several cold water inlet pipes is respectively connected to the cold water inlets of the several welding machines, and the other end of each is respectively connected to the cold water supply pipe. The end of the cold water supply pipe is connected to the front end of the cold water suction pipe through the circulation water pump, and the end of the cold water suction pipe extends downward to the bottom of the water storage tank.

6. The hot water energy recovery system for the casting and welding machine mold according to claim 5, wherein: A screen filter head is installed at the end of the cold water suction pipe.

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