CN111238284A

CN111238284A - Waste water heat recovery device of aluminum alloy electrophoresis scalding and washing tank

Info

Publication number: CN111238284A
Application number: CN202010163035.2A
Authority: CN
Inventors: 梁守棋
Original assignee: Foshan Kaiting Technology Co ltd
Current assignee: Foshan Kaiting Technology Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-06-05

Abstract

The technology discloses a waste water heat recovery device of an aluminum alloy electrophoresis scalding and washing tank, which comprises an aluminum electrophoresis scalding and washing tank, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are respectively connected with the electrophoresis scalding and washing tank, the water outlet pipe is connected with the lower part of the electrophoresis scalding and washing tank, the waste water recovery device also comprises a heat exchanger and a conductivity monitor, one side of a heat absorption side coil pipe in the heat exchanger is connected with the water inlet pipe, the other side of the heat absorption side coil pipe in the heat exchanger is connected with the electrophoresis scalding and washing tank, the water inlet pipe and the water outlet pipe are both provided with an electromagnetic switch valve and a flow controller, both ends of the heat absorption side coil pipe and both ends of the heat release side coil pipe of the heat exchanger are both provided with temperature probes, the conductivity monitor monitors the conductivity of pure water, the water inlet pipe is provided with a booster pump, the device recycles, thereby realizing the heat recovery in the most efficient state and saving energy.

Description

Waste water heat recovery device of aluminum alloy electrophoresis scalding and washing tank

The technical field is as follows:

the invention relates to a waste water heat recovery device of an aluminum alloy electrophoresis scalding tank.

Background art:

in the process of carrying out electrophoresis ironing and washing on aluminum materials in the aluminum alloy electrophoresis ironing and washing tank in the prior art, pure water in the electrophoresis ironing and washing tank 01 needs to be heated up, so that the process conditions of electrophoresis ironing and washing on the aluminum alloy are met. In the process of electrophoresis scalding, when the purity of the pure water in the tank is reduced to influence the electrophoresis scalding effect, the pure water in the electrophoresis scalding tank 01 needs to be replaced. The manufacturer lays a special water inlet pipeline 02 and a special water discharge pipeline 03. The water inlet of the drainage pipe 03 is an overflow 04 designed at the liquid level. In the production process, the pure water is polluted due to the electrophoresis scalding, so that the pure water is more and more in impurity content, the conductivity of the pure water is influenced by the impurity content of the pure water, the more the impurities are, the higher the conductivity is, and otherwise, the lower the conductivity is, so that the purity of the pure water can be known by monitoring the conductivity of the pure water. When the purity of the pure water does not meet the technological requirements, the pure water needs to be replaced, at present, the pure water in the electrophoresis scalding tank 01 is replaced by adding fresh pure water into the electrophoresis scalding tank 01, then the pure water which is seriously polluted is directly drained through the overflow port 04, and then the fresh pure water is supplemented through the water inlet pipeline 02. In the water replenishing process, because the drainage pipeline 03 contains a large amount of waste heat, the waste heat can be taken away when the waste water is drained, and after fresh pure water is replenished in the electrophoresis scalding tank 01, the heating device is needed to reheat the pure water in the electrophoresis scalding tank 01, so that the energy waste is serious. In addition, the weight of the aluminum material put into the hot washing tank for washing is not constant, the amount of pure water supplemented by the water inlet pipeline 02 is not controlled according to the production requirement, too little pure water supplement can affect the washing quality, and too much pure water supplement can cause waste.

The invention content is as follows:

the invention aims to overcome the defects of the prior art and provides a waste water heat recovery device of an aluminum alloy electrophoresis scalding tank.

The invention aims to be realized by the following technical scheme: the utility model provides an aluminium alloy electrophoresis scalds waste water heat reclamation device of washtrough, including the aluminium product electrophoresis scalds the washtrough, inlet tube and drain pipe are connected the electrophoresis respectively and are scalded the washtrough, wherein the drain pipe is the lower part of connecting the electrophoresis and scalding the washtrough, still including heat exchanger and conductivity monitor, the inlet tube is connected to heat absorption side coil one side in the heat exchanger, the electrophoresis scalds the washtrough is connected to the opposite side, heat release side coil one side in the heat exchanger connects the drain pipe, the electrophoresis is connected the lower part of scalding the washtrough to the opposite side, all be provided with electromagnetic switch valve and flow controller on inlet tube and drain pipe, heat absorption side coil both ends and heat release side coil both ends at the heat exchanger all are provided with temperature probe, the conductivity.

The water inlet pipe is provided with a booster pump.

The monitoring probe of the conductivity monitor is arranged on the drain pipe.

After adopting this technical scheme, compare with prior art, this technical scheme has following advantage: this device passes through the heat exchanger and recycles the waste heat recovery in the waste water, realizes the intelligent control of flow to waste heat recovery to the realization carries out heat recovery with the most efficient state, the energy saving.

Description of the drawings:

FIG. 1 is a schematic view showing the construction of a waste water heat recovery apparatus of an aluminum alloy electrophoresis scalding tank in the prior art;

FIG. 2 is a schematic structural diagram of an electric flow control valve as a water inlet flow controller of a waste water heat recovery device of an aluminum alloy electrophoresis scalding tank according to the invention;

FIG. 3 is a schematic structural diagram of a flow control three-way valve as a water inlet flow controller of a wastewater heat recovery device of an aluminum alloy electrophoresis scalding tank.

The specific implementation mode is as follows:

the present technique is further explained below.

The waste water heat recovery device of the aluminum alloy electrophoresis scalding bath of the embodiment comprises an aluminum electrophoresis scalding bath 1, a water inlet pipe 2, a water outlet pipe 3, a heat exchanger 4 and a conductivity monitor 5, wherein the water inlet pipe 2 and the water outlet pipe 3 are respectively connected with the electrophoresis scalding bath 1, the water outlet pipe 3 is the lower part of the electrophoresis scalding bath 1, one side of a heat absorption side coil 41 in the heat exchanger 4 is connected with the water inlet pipe 2, the other side of the heat absorption side coil is connected with the electrophoresis scalding bath 1, one side of a heat release side coil 42 in the heat exchanger 4 is connected with the water outlet pipe 3, the other side of the heat release side coil 42 in the heat exchanger is connected with the lower part of the electrophoresis scalding bath 1, a water inlet filter 6, a water inlet electromagnetic switch valve 7, a booster pump 8 and a water inlet flow controller 9 (an electric flow control valve is shown in figure 2, and a flow control three-way valve is shown in figure 3) are sequentially, A drainage filter 13 is arranged between the electrophoresis scalding tank 1 and the heat exchanger heat-releasing side coil 42. The heat absorption side coil 41 of the heat exchanger 4 is provided at both ends thereof with the first temperature probes 14, 15, and the heat release side coil 42 is provided at both ends thereof with the second temperature probes 16, 17. The monitoring probe 10 of the conductivity monitor 5 is arranged on the drain pipe 3, the conductivity monitor 5 can monitor the purity condition of the pure water in the electrophoresis scalding tank 1, the purity of the pure water is monitored whether to meet the technological requirement of electrophoresis scalding, the purity of the water body in the electrophoresis scalding tank 1 is higher, the conductivity is lower, and the opposite conductivity can be changed to high.

The device is configured to initiate a water change procedure every interval of time (e.g., 5 minutes). When water is changed every time, the conductivity monitor 5 monitors the conductivity of the water flowing through the monitoring probe 10 from the electrophoresis scalding tank 1, so that whether the water body in the tank meets the process requirements is known, the water inlet electromagnetic switch valve 7, the booster pump 8, the water inlet flow controller 9, the drainage flow controller 11 and the drainage switch electromagnetic valve 12 are required to be opened during the water changing operation every time, if the conductivity of the pure water is monitored in the water changing process not to exceed the standard value, the water changing is stopped immediately, and the water changing operation is not required. If the conductivity of the pure water exceeds the standard value, the water inlet pipe 2 supplies fresh pure water to the electrophoresis scalding tank 1, the water outlet pipe 3 discharges the waste water in the electrophoresis scalding tank 1, the water inlet and water discharge process enables the fresh pure water to fully absorb the waste heat in the waste water through the heat exchange of the heat exchanger 4, the waste heat is recycled, in the heat recovery process, the data of the heat absorption quantity of the heat absorption side coil 41 and the heat release quantity of the heat release side coil 42 of the heat exchanger 4 are obtained through detecting the temperature difference value of the two ends of the heat absorption side coil 41 of the heat exchanger and the temperature difference value of the two ends of the heat release side coil 42, so that the heat exchange effect of the heat exchanger 4 is obtained, if the temperature difference value of the heat absorption side coil 41 is too low compared with the temperature difference value of the heat release side coil 42, the water inlet flow controller 9 needs to be reduced, and the pure water is enabled to fully absorb the heat in the waste water before, the electric energy consumed by supplementing and heating the pure water in the electrophoresis scalding tank 1 is reduced. If conductivity monitor 5 detects the water conductivity when too big, in order to guarantee the qualification rate of aluminum product preferentially, need accelerate the electrophoresis and scald the change of the interior water of washtrough 1, just need increase moisturizing volume and displacement this moment, this just requires that inflow flow controller 9 and displacement flow controller 11 adjust into large-traffic, makes the electrophoresis scald the sewage in washtrough 1 and is changed the completion as early as possible, guarantees that the water purity reaches the technological requirement, and the fresh pure water of this process also can absorb the heat in the waste water certainly.

The overflow port is not arranged in the device, so that the problem that the water quantity is difficult to control due to the inlet and outlet of the aluminum material is avoided, and the accuracy of water quantity control is improved. The change of waste water can be accomplished intelligently to this device, and both the temperature difference value of accessible heat exchange process masters heat exchange efficiency and whether equal with the play water flow of inflow, and the accessible detects the water conductivity again and decides whether accelerate water change efficiency in real time.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.

Claims

1. The utility model provides an aluminum alloy electrophoresis scalds waste water heat reclamation device of washtrough, scalds washtrough, inlet tube and drain pipe including the aluminum product electrophoresis, inlet tube and drain pipe are connected the electrophoresis respectively and are scalded the washtrough, and wherein the drain pipe is the lower part of connecting the electrophoresis and scalding the washtrough, its characterized in that: the electrophoresis washing machine is characterized by further comprising a heat exchanger and a conductivity monitor, wherein a water inlet pipe is connected to one side of a heat absorption side coil pipe in the heat exchanger, an electrophoresis scalding washing tank is connected to the other side of the heat absorption side coil pipe, a water discharging pipe is connected to one side of a heat discharging side coil pipe in the heat exchanger, the other side of the heat absorption side coil pipe is connected to the lower portion of the electrophoresis scalding washing tank, an electromagnetic switch valve and a flow controller are arranged on the water inlet pipe and the water discharging pipe, temperature probes are arranged at two ends of the heat absorption side coil pipe.

2. The waste water heat recovery device of the aluminum alloy electrophoresis scalding tank according to claim 1, characterized in that: the water inlet pipe is provided with a booster pump.

3. The waste water heat recovery device of the aluminum alloy electrophoresis scalding tank according to claim 1, characterized in that: the monitoring probe of the conductivity monitor is arranged on the drain pipe.