CN218321664U

CN218321664U - Oil stain removing system

Info

Publication number: CN218321664U
Application number: CN202222417038.1U
Authority: CN
Inventors: 郑时红; 赵云鹏; 茅新波
Original assignee: Zhejiang Youjia Energy Saving Technology Co ltd
Current assignee: Zhejiang Youjia Energy Saving Technology Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-01-17
Anticipated expiration: 2032-09-13

Abstract

The utility model relates to a system is got rid of to oil stain, including the clean unit of preheating unit, gasification unit, waste heat recovery unit and the condensation that communicates the setting in proper order, still include hot-blast conversion unit, hot-blast conversion unit with preheat the unit intercommunication, the waste heat recovery unit with be equipped with interconnect's heat exchange tube in the hot-blast conversion unit. This application not only can get rid of the oil stain of taking oil stain material itself, but also can utilize waste heat recovery system to retrieve the recycle to the heat energy of getting rid of the oil stain process, realizes the collection to the oil stain through cooling, condensation means simultaneously, has avoided causing the pollution to the environment.

Description

Oil stain removing system

Technical Field

The application relates to an oil stain removing system, which is suitable for the technical field of material cleaning and energy conservation and environmental protection.

Background

The surfaces of certain materials, such as metal parts, are typically coated with rust preventive or lubricating oils for corrosion protection or wear reduction. After rolling, the metal profile is cold-hardened and plastically deformed, making further rolling difficult. Therefore, it is necessary to perform heat treatment for annealing, and during annealing, oil stains such as rust preventive oil or lubricating oil may burn. If the annealing temperature is not high, the oil stain is not completely burned, and a large amount of black smoke is generated. If the gas generated by the combustion is not treated, the environment is greatly polluted. In the prior art, the surface of a metal part is generally cleaned before annealing, oil dirt is usually removed by adopting an acid washing method and an alkali washing method, and then the metal part is dried at high temperature, so that the treatment mode not only consumes huge energy, but also generates a large amount of acidic or alkaline sewage, and additional pollutants and treatment cost are brought.

Therefore, there is a need in the art for a grease stain removal technique that is more efficient, less costly, and does not produce additional contaminants.

SUMMERY OF THE UTILITY MODEL

The utility model provides a system is got rid of to oil stain, not only can get rid of the oil stain of taking oil stain material itself, but also can utilize waste heat recovery system to retrieve the recycling to the heat energy of getting rid of the oil stain process, realize the collection to the oil stain through cooling, condensation means simultaneously, avoided harmful component in the oil stain to cause the pollution to the environment.

The utility model relates to a system is got rid of to oil stain, including the clean unit of preheating unit, gasification unit, waste heat recovery unit and the condensation that communicates the setting in proper order, still include hot-blast conversion unit, hot-blast conversion unit with preheat the unit intercommunication, the waste heat recovery unit with be equipped with interconnect's heat exchange tube in the hot-blast conversion unit.

A second heat recovery unit can be further arranged and is communicated with the preheating unit; the second heat recovery unit can be arranged in parallel or in series with the hot air conversion unit; the condensation cleaning unit may be communicated with an air inlet of the hot wind conversion unit; a preheating device is arranged in the preheating unit, and a heating device is arranged in the gasification unit; a circulating pump can be arranged between the heat exchange tube of the waste heat recovery unit and the heat exchange tube of the hot air conversion unit; an oil collecting tank can be arranged in the waste heat recovery unit; a condensation heat exchanger can be arranged in the condensation cleaning unit, and the condensation heat exchanger is connected with a second pump; the condensation cleaning unit may be further provided with a condensation tank, and the condensation tank may be connected to a condensation tank.

According to the application, the oil stain removing system has the following technical effects:

(1) According to the oil stain cleaning device, the waste heat recovery unit and the condensation cleaning unit are sequentially arranged at the downstream of the gasification unit, so that oil stains on pollutants with the oil stains are gasified firstly, and then are cooled and liquefied through the waste heat recovery unit and the condensation cleaning unit respectively, so that the oil stains are removed, and the environmental air is not polluted;

(2) According to the air preheating device, the hot air conversion unit is arranged, and the heat exchange pipes which are connected with each other are arranged in the waste heat recovery unit and the hot air conversion unit, so that heat contained in waste gas in the waste heat recovery unit can be converted into heat of air entering the hot air conversion unit, and then the preheated air is conveyed to the preheating unit, so that part of hot air energy recovered in the waste heat recovery unit is utilized, and heat loss is avoided;

(3) The second heat recovery unit is arranged and communicated with the preheating unit, so that the heat on the oil stain pollutants can heat the entering air, and the heat on the oil stain pollutants can be recycled;

(4) This application is through the air intlet intercommunication with the clean unit of condensation and hot-blast conversion unit for the clean unit exhaust waste gas heat of condensation not only can be retrieved, but also can be with the whole circulation condensation of the harmful substance in the entire system waste gas, can not produce harmful effects to ambient air, thereby improved environmental protection effect.

Drawings

Fig. 1 is a schematic view of a first embodiment of the oil stain removal system of the present application.

Fig. 2 is a schematic view of a second embodiment of the oil stain removal system of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict. The present application is described with respect to oil stain removal of metal parts, and those skilled in the art will appreciate that the system of the present application is not limited to metal parts, and may be used for other oil stain contaminants.

As shown in FIG. 1, the oil stain removing system comprises a preheating unit 1, a gasification unit 2, a waste heat recovery unit 3 and a condensation cleaning unit 4 which are sequentially communicated, and hot air is introduced into the preheating unit 1, the gasification unit 2, the waste heat recovery unit 3 and the condensation cleaning unit 4. The waste heat recovery unit 3 and the hot air conversion unit 5 are internally provided with heat exchange tubes which are connected with each other, the hot air conversion unit 5 is communicated with the preheating unit 1, and the condensation cleaning unit 4 is internally provided with a condensation heat exchanger. In the present application, the aforementioned communication means that air can flow in each unit sequentially.

The preheating unit 1 is provided with a preheating device 11 to preheat the metal piece, so that partial oil stain or moisture on the surface of the metal piece is gasified in advance. A heating device 21 is provided in the vaporizing unit 2 to stabilize the vaporizing unit within a temperature range in which the remaining oil stain can be vaporized and vaporized. In the gasification unit 2, oil stains on the surface of the metal section can be evaporated and gasified, and the surface is clean. At the same time, the hot air is converted into the waste gas containing oil stain in gas state and has higher temperature. The first heat exchange tube 31 and the oil collecting tank 33 are arranged in the waste heat recovery unit 3, the temperature of the waste gas is reduced through heat exchange between the waste gas and the first heat exchange tube 31, and part of oil stain gas is condensed and condensed on the surface of the first heat exchange tube 31 and finally drops in the oil collecting tank 33.

A second heat exchange pipe 51 connected with the first heat exchange pipe 31 of the waste heat recovery unit 3 is arranged in the hot air conversion unit 5, and heat contained in the waste gas entering the waste heat recovery unit 3 from the gasification unit 2 is transferred to the heat exchange pipe in the hot air conversion unit 5 through the heat exchange pipe. After entering from the hot air conversion unit 5, the external air can be preheated by the heat of the heat exchange medium in the heat exchange tube of the hot air conversion unit 5, and the external air is converted into hot air with a certain temperature. And then transferred to the preheating unit 1, and the temperature of the hot air is further raised by the heating means 11 in the preheating unit 1. Through the arrangement of the hot air conversion unit, a part of hot air energy recovered in the waste heat recovery unit is utilized, and the loss of heat is avoided. Preferably, a first pump 32 may be provided on the heat exchange pipe between the waste heat recovery unit 3 and the hot wind conversion unit 5 to promote and accelerate the flow of the heat exchange medium inside the heat exchange pipe, thereby improving heat exchange efficiency.

The hot air after the waste heat is recovered by the waste heat recovery unit 3 flows into the condensing cleaning unit 4. In the condensation purification unit 4, there is a condensation heat exchanger 41, and the waste gas exchanges heat with the condensation heat exchanger 41, and a heat exchange medium in the condensation heat exchanger 41 is driven by a second pump 42 to circulate, so that the oil stain gas in the waste gas is totally condensed and condensed, collected in a condensation tank 44, and further collected in a condensation tank 43. If the temperature of oil stain condensation is much higher than the ambient temperature, the temperature of the waste gas after the clean treatment of the condensation purification unit 4 is possibly higher than the ambient temperature, and the waste gas is rich in energy, and the waste gas can also be directly used as the air sucked by the hot air conversion unit, so that the circulating energy-saving effect of the whole device is further realized. Therefore, the condensation cleaning unit 4 may also communicate with the air inlet of the hot wind conversion unit 5.

In the second embodiment, a second heat recovery unit 6 in communication with the preheating unit 1 may also be provided to further recover heat from the oil contamination. As shown in fig. 2, the second heat recovery unit 6 may be disposed in parallel with the hot wind conversion unit 5. Alternatively, the second heat recovery unit 6 may also be provided in series with the hot air conversion unit 5, that is, the second heat recovery unit 6 may be provided upstream or downstream of the hot air conversion unit 5 in series. After the metalwork is heated in gasification unit 2, its itself also stores a large amount of heats, can transfer the metalwork after being heated to second heat recovery unit 6 this moment, then lets in the outside air in second heat recovery unit 6 to make the heat that the outside air absorbed on the metalwork rise, the air after the intensification preheats the new metalwork of treating in getting into preheating unit 1. This application is through setting up the second heat recovery unit for heat on the metalwork that the process gasification unit heaies up also can recycle, has further improved the thermal recycle efficiency of system, has avoided the waste of energy. It should be noted that, a person skilled in the art may also use other ways to recover heat from the metal part, and the method is not limited to the second embodiment of the present application, for example, cooling water is used to generate high-temperature steam.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims

1. The utility model provides a system is got rid of to oil stain, its characterized in that, including the clean unit of preheating unit, gasification unit, waste heat recovery unit and the condensation that communicates the setting in proper order, still include hot-blast conversion unit, hot-blast conversion unit with preheat the unit intercommunication, waste heat recovery unit with be equipped with interconnect's heat exchange tube in the hot-blast conversion unit.

2. The oil stain removal system of claim 1, further providing a second heat recovery unit in communication with the pre-heating unit.

3. The oil stain removal system of claim 2, wherein the second heat recovery unit is arranged in parallel or in series with the hot air conversion unit.

4. The oil stain removal system of any one of claims 1-3, wherein the condensation cleaning unit is in communication with an air inlet of the hot air conversion unit.

5. The oil stain removal system of any one of claims 1-3, wherein a preheating device is provided in the preheating unit and a heating device is provided in the gasification unit.

6. The oil stain removal system as claimed in any one of claims 1 to 3, wherein a circulating pump is provided between the heat exchange pipe of the waste heat recovery unit and the heat exchange pipe of the hot air conversion unit.

7. The oil stain removal system of claim 6, wherein an oil sump is also provided in the waste heat recovery unit.

8. The oil stain removal system of any one of claims 1-3 and 7, wherein a condensing heat exchanger is arranged in the condensing cleaning unit, and a second pump is connected with the condensing heat exchanger.

9. The oil stain removal system of claim 8, wherein the condensation cleaning unit is further provided with a condensation tank.

10. The oil stain removal system of claim 9, wherein the condensate tank is connected to a condensate tank.