CN215810401U

CN215810401U - Sterilization steam heat recovery unit in algal oil DHA fermentation process

Info

Publication number: CN215810401U
Application number: CN202121443882.0U
Authority: CN
Inventors: 胡学超; 栾海威
Original assignee: Kaicheng Health Technology Shanghai Co ltd
Current assignee: Jianqixing Life Sciences Shanghai Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-11
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a sterilizing steam heat recovery device in an algae oil DHA fermentation process, which comprises a steam inlet pipeline, a heat exchange device and a steam outlet pipeline, wherein the steam inlet pipeline and the steam outlet pipeline are respectively connected with an inlet and an outlet of the heat exchange device, the steam inlet pipeline comprises a first pipeline, a second pipeline and a third pipeline, one end of the first pipeline is communicated with a sterilizing steam outlet of a fermentation tank, the other end of the first pipeline is respectively communicated with the second pipeline and the third pipeline, the first pipeline, the second pipeline and the third pipeline are respectively provided with a first valve, a second valve and a third valve, one end of the second pipeline, which is far away from the first pipeline, is communicated with the inlet of the heat exchange device, a water circulation pipeline is arranged in the heat exchange device, and steam is input through the second pipeline to heat the water circulation pipeline, the sterilizing steam heat recovery device is simple in structure, the maintenance is convenient, and the effects of heat energy recovery, energy conservation and emission reduction are achieved.

Description

Sterilization steam heat recovery unit in algal oil DHA fermentation process

Technical Field

The utility model relates to the technical field of algae oil processing, in particular to a sterilizing steam heat recovery device in an algae oil DHA fermentation process.

Background

The rapid development of renewable energy sources is promoted by the gradual depletion of fossil fuels and the resulting problems of greenhouse effect and the like. The biological energy source shows sustainability, environmental friendliness and good adaptability, and in addition, the biological energy source can reduce the emission of CO2, so the biological energy source is a good fossil fuel substitute. Biological energy can be roughly divided into three generations according to different raw materials. The first generation of bioenergy, whose raw materials include sugar, grains and seeds of oil crops, is impractical to use as a bioenergy using edible biomass as a raw material due to its occupation of cultivated land; the second generation biological energy source raw material is non-edible cellulose biomass, including agricultural and forestry waste and non-edible biomass, but a series of technical problems exist in the utilization of the second generation biological energy source; the third generation of bioenergy raw materials mainly comprises microalgae. Under the appropriate environmental conditions, 50-70% of grease can be produced by dry algae per unit mass. However, during the production process of microalgae, the pipeline is often sterilized by steam, after sterilization is completed, the steam is condensed by a condensation technology and is discharged to a sewer, and some microalgae need to be sterilized for a long time, so that steam needs to be continuously discharged in 24 hours during the sterilization process, and serious waste is caused to resources.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a sterilizing steam heat recovery device in the algae oil DHA fermentation process.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a sterilization steam heat recovery unit in algae oil DHA fermentation process, includes steam admission pipeline, heat transfer device, steam exhaust pipe, steam admission pipeline and steam exhaust pipe connect respectively in heat transfer device's import and export, wherein, steam admission pipeline includes first pipeline, second pipeline, third pipeline, the one end and the fermentation cylinder sterilization steam outlet intercommunication of first pipeline, the other end respectively with second pipeline, third pipeline intercommunication, just first pipeline, second pipeline, third pipeline are provided with first valve, second valve, third valve respectively, the second pipeline is kept away from the one end of first pipeline and heat transfer device's import intercommunication, be provided with the hydrologic cycle pipeline in the heat transfer device, through second pipeline input steam heats the hydrologic cycle pipeline.

Preferably, a temperature detection device is arranged on the second pipeline and used for detecting the temperature of the steam in real time.

Preferably, a timing device is arranged on the second pipeline and used for timing the steam sterilization time.

Preferably, the number of the steam inlet pipeline is at least one, and the steam inlet pipelines are respectively communicated with the inlet of the heat exchange device in a parallel connection mode.

Preferably, a heat insulation layer is fixedly arranged outside the steam inlet pipeline and the steam outlet pipeline.

In summary, the utility model includes at least one of the following beneficial technical effects: through first pipeline and fermentation cylinder sterilization steam outlet intercommunication, through the second pipeline, the third pipeline communicates respectively with between the first pipeline, through first gate, the second valve, the first pipeline is controlled respectively to the third valve, the on-off state of second pipeline and third pipeline, the realization is carried along separate routes to the steam through first pipeline, when first pipeline and second pipeline intercommunication, through setting up the heat transfer device on the second pipeline, make steam when flowing through heat transfer device, on the one hand, cool down the processing to steam, on the other hand heats the water circulation pipeline through steam, reach thermal transmission, realize the multiple utilization to the steam heat, also make the final exhaust steam temperature of steam exhaust pipeline reduce, avoid because steam exhaust pipeline is overheated, cause the emergence of scald accident, moreover, the steam generator is simple in structure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view showing the connection relationship between a plurality of steam inlet pipes and a heat exchange device in the present invention.

Reference numerals: 1. steam enters the pipeline; 11. a first conduit; 12. a second conduit; 13. a third pipeline; 1a, a first valve; 1b, a second valve; 1c, a third valve; 2. a heat exchange device; 3. a steam discharge conduit; 4. a water circulation pipeline; 5. a temperature detection device; 6. a timing device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one.

In the description of the present specification and claims, the terms "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 shows a specific embodiment of the device for recovering heat from sterilized steam in the fermentation process of DHA in algae oil according to the present invention, which comprises a steam inlet pipeline 1, a heat exchange device 2 and a steam outlet pipeline 3, wherein the steam inlet pipeline 1 and the steam outlet pipeline 3 are respectively connected with an inlet and an outlet of the heat exchange device 2, the steam inlet pipeline 1 is communicated with the sterilized steam outlet of the fermentation tank, the steam is conveyed into the heat exchange device 2 along the pipeline for multiple utilization, and the steam passing through the heat exchange device 2 is discharged through the steam discharge pipeline 3, the mode of discharging the steam passing through the heat exchange device 2 through the steam discharging pipeline 3 is mainly that the steam discharging pipeline 3 is introduced into a sewer to be discharged, the heat exchanger exchanges heat with the steam, so that the temperature of the steam discharged into a sewer is reduced, and scalding accidents are avoided.

Wherein, steam admission pipeline 1 includes first pipeline 11, second pipeline 12, third pipeline 13, the one end and the fermentation cylinder sterilization steam outlet intercommunication of first pipeline 11, the other end communicates with second pipeline 12, third pipeline 13 respectively, and first pipeline 11, second pipeline 12, third pipeline 13 are provided with first valve 1a respectively, second valve 1b, third valve 1c, during the sterilization, at first guarantee that all valves are closed state, when the heat is redundant, open first valve 1a and make steam get into third pipeline 13 and carry out the condensation treatment, slowly open third valve 1c again, make the comdenstion water spray from third pipeline 13 is whole through steam, flow into the sewer and discharge.

One end of the second pipeline 12, which is far away from the first pipeline 11, is communicated with an inlet of the heat exchange device 2, a water circulation pipeline 4 is arranged in the heat exchange device 2, when the heat of the steam is required to be recycled, the first valve 1a is opened, the second valve 1b is slowly opened, the opening and closing degree of the second valve 1b is adjusted according to the requirement of the sterilization speed, and the opening and closing degree of the second valve 1b can be properly reduced and adjusted after the temperature reaches the sterilization temperature, so that excessive heat loss is prevented.

When steam sterilization is performed, the sterilization temperature and the sterilization time determine the sterilization effect, the fluctuation of the pressure of the supplied steam affects the temperature, and the opening degree of the second shutter also affects the rising speed of the temperature of the pipeline. Therefore, the present application provides the temperature detection device 5 and the timing device 6 on the second pipe 12 while recycling the thermal energy.

When the temperature of steam reaches the sterilization setting temperature, timing device 6 begins the timing, remind the shut-off valve after the specified time of sterilization, prevent that time or/and temperature are not enough, influence the sterilization effect, timing device 6 reminds in time to close second valve 1b and prevents that steam is extravagant simultaneously, this application manages sterilization time and sterilization temperature with visual and instant mode, the reliability of sterilization has been improved, avoid the not enough incomplete problem of sterilization that produces of sterilization time and temperature, also can effectual control redundant sterilization time through time management, further control energy consumption.

In this embodiment, the quantity that steam got into pipeline 1 is a plurality of, and a plurality of steam gets into pipeline 1 and communicates through parallelly connected mode respectively with heat transfer device 2's import, heat exchanger and a plurality of fermentation cylinder sterilization steam outlet intercommunication of accessible, it is corresponding, a plurality of fermentation cylinder sterilization steam outlet correspond and set up a plurality of fermentation cylinders, can realize carrying out the thermal recycling process of steam to a plurality of fermentation cylinders simultaneously, and the place that the medium that passes through in the water circulation pipeline 4 to absorptive heat for the required heating of enterprise, perhaps heat.

Steam is at direct outer row in-process, can produce the high temperature risk point, makes the pipe wall intensification, easily leads to the occurence of failure of scald, consequently, in this embodiment,

steam admission pipeline

1 and 3 external fixation of steam escape pipe are provided with the thermal insulation layer, carry out thermal-insulated processing through the thermal insulation layer to the pipeline outer wall, avoid the emergence of similar accidents such as scald.

Of course, a guard rail may be fixedly disposed outside the steam inlet pipe 1 and the steam outlet pipe 3, so as to prevent scalding accidents by preventing direct contact between the guard rail and the outer walls of the steam inlet pipe 1 and the steam outlet pipe 3.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. A sterilization steam heat recovery device in the algae oil DHA fermentation process is characterized by comprising a steam inlet pipeline, a heat exchange device and a steam outlet pipeline, wherein the steam inlet pipeline and the steam outlet pipeline are respectively connected with an inlet and an outlet of the heat exchange device,

the steam inlet pipeline comprises a first pipeline, a second pipeline and a third pipeline, one end of the first pipeline is communicated with a sterilization steam outlet of the fermentation tank, the other end of the first pipeline is communicated with the second pipeline and the third pipeline respectively, the first pipeline, the second pipeline and the third pipeline are provided with a first valve, a second valve and a third valve respectively, one end of the second pipeline, which is far away from the first pipeline, is communicated with an inlet of a heat exchange device, a water circulation pipeline is arranged in the heat exchange device, and the water circulation pipeline is heated by inputting steam through the second pipeline.

2. The device for recovering sterilizing steam heat in the algae oil DHA fermentation process according to claim 1, wherein a temperature detection device is arranged on the second pipeline and used for detecting the temperature of the steam in real time.

3. The device for recovering sterilizing steam heat in the algae oil DHA fermentation process according to claim 1, wherein a timing device is arranged on the second pipeline and used for timing steam sterilizing time.

4. The device for recovering the sterilization steam heat in the algae oil DHA fermentation process according to claim 1, wherein the number of the steam inlet pipes is at least one, and a plurality of the steam inlet pipes are respectively communicated with the inlet of the heat exchange device in a parallel connection manner.

5. The device for recovering sterilizing steam heat in the algae oil DHA fermentation process according to claim 1, wherein a heat insulation layer is fixedly arranged outside the steam inlet pipeline and the steam outlet pipeline.