CN215050157U

CN215050157U - Reactor

Info

Publication number: CN215050157U
Application number: CN202022838530.7U
Authority: CN
Inventors: 汪昱昌; 陆裕峰; 童胜宝; 王智; 王干; 郑晓宇
Original assignee: Everbright Envirotech China Ltd
Current assignee: Everbright Envirotech China Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-12-07
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a reactor, it includes: a reactor body; and the half pipe is spirally ascended and welded on the outer wall of the reactor body from the preset position at the bottom of the reactor body and is used for improving the heat exchange efficiency. In this reactor, heat transfer medium can be directly through jar wall with heat transfer to in the jar, has reduced the heat loss, avoids easy scale deposit scheduling problem when guaranteeing the heat exchange efficiency, has reduced the installation simultaneously and has overhauld the degree of difficulty.

Description

Reactor

Technical Field

The utility model relates to a refuse treatment field, more specifically relates to a reactor.

Background

By the end of 2015, about 118 kitchen waste treatment projects (more than 50 t/d) which are put into operation, under construction and built in China are available, wherein 80 kitchen waste treatment projects adopting anaerobic fermentation technology account for 75.9% of the total treatment capacity, and the kitchen waste treatment projects are the mainstream kitchen waste treatment technology. The kitchen slurry is slurry generated after kitchen waste is treated by a pretreatment system, and the solid content of the kitchen slurry is usually 8-12%.

According to the construction plan of harmless treatment facilities of domestic garbage in the national cities and towns of thirteen five, the kitchen treatment capacity of 3.44 million tons/day is increased in China during the thirteen five period, and the market prospect is wide. At present, in order to achieve higher oil extraction rate and obtain more benefits in domestic kitchen waste treatment, materials are generally required to be heated in a pretreatment stage, the temperature is generally 80 ℃, the microbial activity of anaerobic reaction is generally optimal at 35-37 ℃ and 50-55 ℃, and therefore the materials are required to be cooled, and coil pipes in tanks are generally adopted for direct heat exchange or heat exchangers are utilized for indirect heat exchange. The completely mixed anaerobic refers to an anaerobic reaction in which a fermentation raw material and a microorganism are in a completely mixed state.

The related art discloses an anaerobic reaction apparatus, which includes: the jar body, and set up in jar internal sleeve, wherein, the sleeve is double-deck sleeve, including inner wall and outer wall, the inner wall with form the intermediate layer between the outer wall be provided with cold and hot circulation medium in the intermediate layer. The double-layer sleeve is arranged in the tank body, so that the inner wall and the outer wall of the sleeve can be in contact with materials in the tank body, and the gas supercharging device is arranged to promote the circulation of the materials in the tank body by using methane stirring, so that the heat exchange of the materials in the tank body is realized.

However, above-mentioned anaerobic reaction device adopts sleeve heat transfer technique, only to the reaction unit who adopts gas stirring, and tank structure is complicated, has promoted the interior scale deposit risk of jar, is not convenient for later stage maintenance.

The inner coil pipe is adopted, and although the heat exchanger has the advantages of high heat exchange efficiency, less heat loss and the like, the difficulty of difficult installation and maintenance exists, and meanwhile, the coil pipe is easy to scale, and the heat transfer coefficient is reduced. On the other hand, the existence of jar interior coil pipe can influence stirring effect to a certain extent, leads to pipe wall department fluid motion obstructed, further increases the danger of scale deposit.

And the indirect heat exchange outside the fermentation tank is adopted, the fermentation slurry is subjected to heat exchange outside the fermentation tank through a heat exchange medium, namely the fermentation slurry, and although the problems of the inner coil pipe are solved, the heat transfer efficiency is low, the heat loss is large, and the heat exchange speed is slow.

Accordingly, there is a need to provide a reactor that addresses at least the above-mentioned problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above problems, according to an aspect of the present invention, there is provided a reactor including: a reactor body; and the half pipe is spirally ascended and welded on the outer wall of the reactor body from the preset position at the bottom of the reactor body and is used for improving the heat exchange efficiency.

In some embodiments, the height of the half-tube is determined based on the amount of heat exchange required for the reaction.

In some embodiments, the spacing of the half-tubes is determined based on the amount of heat exchange required for the reaction.

In some embodiments, the half-tube specifications are determined based on the amount of heat exchange required for the reaction.

The utility model provides a kitchen cabinet thick liquid mixes anaerobic reactor entirely solves kitchen garbage anaerobic reactor heat loss big, heat transfer efficiency low, the easy scale deposit scheduling problem of jar interior coil pipe.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

Fig. 1 shows a front view and a cross-sectional view of a reactor according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the present invention and are not intended to limit the invention to the particular embodiments described herein. Based on the embodiments of the present invention described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

The utility model provides a reactor has solved above-mentioned kitchen garbage anaerobic reactor heat loss big, heat transfer efficiency is low, the easy scale deposit scheduling problem of jar interior coil pipe.

The utility model provides a novel reactor, adopt the mode of the half pipe heat transfer of outer coil pipe of jar, heat transfer medium can directly pass through jar wall with heat transfer to jar in, has reduced the heat loss, avoids easy scale deposit scheduling problem when guaranteeing the heat exchange efficiency, has reduced the installation and has overhauld the degree of difficulty.

Next, a reactor according to an embodiment of the present invention will be described in detail with reference to fig. 1.

Fig. 1 shows a front view and a cross-sectional view of a reactor according to an embodiment of the invention, as shown in fig. 1, a reactor comprising: a reactor body; and the half pipe is spirally ascended and welded on the outer wall of the reactor body from the preset position at the bottom of the reactor body and is used for improving the heat exchange efficiency.

Although fig. 1 shows a kitchen slurry complete mixing anaerobic reactor, the present invention is not limited to this specific reactor, but can be applied to other reactors, including but not limited to a reactor or a storage tank requiring heat exchange, and can also be used as a substitute for an external coil heat exchange reactor.

Specifically, the utility model discloses in, form half a pipe after the cutting of centre of a circle department with ordinary pipe, or carry out the edge rolling with ordinary steel sheet, from being close to tank bottoms suitable position along jar body spiral shell screwing in of rising welding at the reactor outer wall.

The utility model provides a reactor, its key point lies in utilizing half pipe to replace the full tubular heating coil of mainstream to the spiral shell screwing in formula welding is at the reactor outer wall, makes in the coil pipe heat transfer medium carry out direct contact with jar wall and conducts heat, compares in ordinary jar outer coil heat transfer, increases heat transfer area, has reduced the heat loss, and the risk of the interior no scale deposit of jar has reduced the installation and has overhauld the degree of difficulty simultaneously.

Specifically, the pipe wall of the coil outside the tank is in contact with the tank wall to conduct heat transfer, heat is firstly transferred to the pipe wall from a medium and then transferred to the tank wall from the pipe wall, or the pipe wall is transferred to air, and the air is transferred to the pipe wall. And the half pipe is used for directly transmitting the heat in the medium to the tank wall, so that the heat transmission times are reduced, and the heat loss is reduced.

The direct contact area in the half pipe is equivalent to the section circular area of the pipe, and the outer coil pipe is only the contact point area, so the heat exchange area is obviously increased by adopting a half pipe mode.

The heat exchange medium can be common steam, water or heat conducting oil, and can enter from the bottom through a pump or other power equipment and fill the coil. The utility model discloses in, because half pipe setting does not have other structures outside the jar in, so can effectively prevent the interior scale deposit of jar, reduced the installation simultaneously and overhauld the degree of difficulty.

Specifically, the height, the distance and the specification of the half pipe are not fixed, and the half pipe is obtained through thermodynamic calculation according to different project conditions. Generally, the higher the height of the coil, the smaller the coil spacing, the more heat exchange will tend to increase, and the corresponding cost will increase.

The utility model discloses the beneficial technological effect who brings mainly lies in: compared with a reaction device which adopts a sleeve heat exchange technology and only aims at gas stirring, the heat exchange mode of the device has no special requirement on the stirring mode of the device (both mechanical stirring and gas stirring); the utility model adopts the mode of half-pipe heat exchange of the coil pipe outside the tank, thereby reducing the structure in the tank, reducing the risk of scaling in the tank and facilitating later-period maintenance; and the half pipe is welded on the outer wall of the reactor in a spiral ascending way, so that the heat exchange medium and the wall of the reactor tank carry out direct contact type heat transfer, and the heat loss is reduced.

Although the present invention shows a kitchen slurry complete mixing anaerobic reactor, the present invention is not limited to this specific reactor, but is applicable to other reactors, including but not limited to a reactor or a storage tank requiring heat exchange, and can also be used as a substitute for an external coil heat exchange reactor.

Although the example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above-described example embodiments are merely illustrative and are not intended to limit the scope of the present invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as claimed in the appended claims.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The above description is only for the specific embodiments of the present invention or the description of the specific embodiments, the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A reactor, comprising:

a reactor body; and

and the half pipe is spirally ascended and welded on the outer wall of the reactor body from the preset position at the bottom of the reactor body and is used for improving the heat exchange efficiency.

2. The reactor of claim 1, wherein the height of the half-tube is determined based on the amount of heat exchange required for the reaction.

3. The reactor of claim 1 wherein the spacing of the half-tubes is determined based on the amount of heat exchange required for the reaction.

4. The reactor of claim 1, wherein the half-tube specifications are determined based on the amount of heat exchange required for the reaction.