CN116676165B - Split type hidden fermentation biological hydrogen production reactor - Google Patents

Abstract

The invention discloses a split type dark fermentation biological hydrogen production reactor which comprises a reaction bottom tank, wherein a hydrogen production collecting device is arranged at the upper end of the reaction bottom tank, the hydrogen production collecting device comprises a collecting main pipe, a collecting branch pipe and a collecting branch pipe are arranged on the collecting main pipe, the collecting branch pipe is connected to a collecting circular pipe, a plurality of second collecting branch pipes are arranged on the collecting circular pipe and connected to the reaction bottom tank, a plurality of split hydrogen production devices are arranged at the upper end of the reaction bottom tank and are arranged on the reaction bottom tank, a self-heating device is arranged in the reaction bottom tank, and the self-heating device is connected with a hydrogen production information processor. The method is regulated and controlled according to the fermentation type and the feedback information of the processor, the reaction products enter the lower total reaction zone in batches, the upper part of the reaction products are divided into sequencing batch reaction tanks, and the sequencing batch reaction tanks are singly collected and singly controlled for reaction, so that the method can adapt to the reactions of different stages of dark fermentation, and the stability of the system is greatly improved.

Description

Split type hidden fermentation biological hydrogen production reactor

Technical Field

The invention relates to the technical field of agricultural engineering energy utilization, in particular to a split type dark fermentation biological hydrogen production reactor.

Background

In the biological hydrogen production reactor, the fermentation types can be classified into four types, i.e., ding Suanxing, propionic acid type fermentation, and mixed acid type fermentation and ethanol type fermentation.

In the initial stages of start-up, rapid and frequent changes in load are direct influencing factors leading to a succession of bacterial populations and a transformation of the fermentation type, other ecological factors in the reactor such as pH, ORP, alkalinity etc. together with the load trigger different fermentation types.

Organic acid accumulation inhibition is a bottleneck problem which is difficult to break through in the prior dark fermentation biological hydrogen production technology. In the starting process, the liquid-phase end product has different degrees of inhibition on hydrogen production fermentation, acetic acid serving as a main liquid-phase product has a strong inhibition effect on hydrogen production of flora, and the inhibition effect of ethanol is not obvious. For ethanol type fermentation hydrogen production reactors, a significant accumulation of acetic acid should be avoided if sustained high efficiency hydrogen production is to be achieved. When the succession of propionic acid type fermentation to ethanol type fermentation is extremely slow, restarting the reactor should be considered first when the fermentation biological hydrogen production reactor is in operation.

Microorganisms involved in the dark fermentation are facultative and obligate anaerobes, pure bacteria (isolated strains), mixed bacteria (from anaerobic digested sludge, compost soil, etc.), thermophilic and mesophilic microorganisms. Compared with mixed bacteria fermentation, the main advantage of using pure bacteria fermentation is that the productivity is higher, but the problems of pollution, metabolic pathway change and mutation during preservation and the like exist.

In summary, acidification and strain activity of the dark fermentation reactor are main problems for preventing industrialization of the dark fermentation biological hydrogen production, and demands for the biological hydrogen production reactor with fine control are urgent in the market at present due to the problems of complex biological hydrogen production reaction mechanism, various control indexes, poor system stability, various strain activity and abundance influencing factors and the like.

Disclosure of Invention

The invention aims to provide a split type dark fermentation biological hydrogen production reactor which solves the problems in the background technology, can be synchronously prepared, is regulated and controlled according to the fermentation type, and enters a lower total reaction zone after complete regulation and control. The upper part is divided into sequencing batch reactor, and the sequencing batch reactor is singly collected and singly controlled for parameters, can be used for initial starting regulation and control, can also regulate and control the lower total reaction zone, and is used for directional flora and substrate culture through the upper part divided reactor.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a split type dark fermentation biological hydrogen production reactor, includes the reaction bottom jar, the reaction bottom jar upper end is provided with hydrogen production collection device, hydrogen production collection device includes the collection main pipe, be provided with collection branch pipe and collection branch pipe on the collection main pipe, the collection branch pipe is connected on collecting round pipe, be provided with a plurality of second collection branch pipes on the collection round pipe, the second collection branch pipe connect in on the reaction bottom jar, the reaction bottom jar upper end is provided with a plurality of components of a whole that can function independently hydrogen generator, components of a whole that can function independently hydrogen generator install in on the reaction bottom jar, be provided with from heating device in the reaction bottom jar, from heating device rotate connect in on the base of reaction bottom jar, from heating device include the (mixing) shaft, the (mixing) shaft install in on the base, be provided with the stirring cage on the (mixing) shaft, the stirring cage upper end is provided with components of a whole that can function independently hydrogen generator, stirring cage week circle department is provided with the friction plate, the friction plate install in between the stirring cage and the reaction bottom jar, be connected with hydrogen production device from the information handling.

Preferably, the split hydrogen generator comprises a split hydrogen generator tank and a split rotary seat, wherein the lower end of the split hydrogen generator tank is connected with the split rotary seat, a fixing rod is arranged on the split rotary seat, the fixing rod is arranged in the split hydrogen generator tank, and the upper end of the fixing rod is connected to the collecting branch pipe.

Preferably, the fixing rod is provided with a self-heating device, the self-heating device comprises a heating support frame, a heat generating plate is arranged at the edge of the heating support frame, and the heat generating plate is rotationally connected with the inner wall of the split hydrogen production tank.

Preferably, a plurality of rotating seats are arranged at the upper end of the stirring cage, the rotating seats are rotationally connected with the split rotating seat, a perforation is arranged between the split rotating seat and the rotating seat, and the perforation is connected with the split hydrogen production tank and the reaction bottom tank.

Preferably, a temperature sensor is arranged in the split hydrogen making tank and is connected with a hydrogen making information processor, and the hydrogen making information processor controls the rotation speed of a stirring motor connected with the stirring shaft.

Preferably, the upper end of the split hydrogen production tank is rotationally connected to the collecting branched pipe, the lower end of the collecting branched pipe is provided with a collecting cover, a rotating shaft is installed in the collecting cover, the upper end of the rotating shaft is connected to the support at the upper end of the collecting branched pipe, the support at the upper end is fixed on the inner wall of the collecting branched pipe, the rotating shaft is rotationally connected with a meshing rotary seat at the upper end of the split hydrogen production tank, the rotating shaft and the meshing rotary seat form a meshing body, and a space between the meshing body and the collecting cover forms an annular channel.

Preferably, a control gill ring is arranged on the rotating shaft and connected with the collecting branch pipe pressure sensor, and the control gill ring can close or open an annular channel between the split hydrogen tank and the collecting branch pipe.

Preferably, the control gill ring comprises a gill body and a push ring, the gill body is arranged at the peripheral ring of the rotating shaft, the push ring is arranged above the gill body, a pneumatic push plate is arranged on the push ring, the push ring is in push connection with the gill body, the pneumatic push plate is connected with the pressure sensor, and the pressure sensor is connected with the hydrogen production information processor.

Preferably, the reaction bottom tank center position is provided with feeding device, feeding device includes the filling tube, a plurality of inlet pipes are connected to the filling tube upper end, be provided with the pressurization valve on the inlet pipe, filling tube side and lower extreme are provided with injection device respectively.

Preferably, the spraying device comprises a transverse spraying pipe and a lower spraying pipe, wherein the transverse spraying pipes are symmetrically arranged on two sides of the feeding pipe, the lower spraying pipe is arranged at the lower end of the feeding pipe, an inclined plate is arranged at the lower end of the transverse spraying pipe, and inclined baffles are arranged on two sides of the lower spraying pipe.

Compared with the prior art, the invention has the beneficial effects that:

(1) the split type dark fermentation biological hydrogen production reactor is adopted, can be prepared synchronously, is regulated and controlled according to the fermentation type, and enters the lower total reaction zone after complete regulation and control. The upper part is divided into sequencing batch reactor, and the sequencing batch reactor is singly collected and singly controlled by parameters.

(2) The system can be used for initial startup regulation and control, and can also regulate and control the total reaction zone below, and directional flora and substrate culture can be carried out through the split reaction tank above.

(3) Because the hydrogen production mechanism of biological hydrogen production is complex, the regulation and control of each link are very many, and the system is flexibly applied. Can be inserted into each stage of the biological hydrogen production reactor. System stability is enhanced. Can be used for laboratory research in universities and can also be used for producing biological hydrogen. Each cabin is provided with a solid-liquid sampling port, and the sampling can be performed in a grading manner.

(4) The requirement of the hidden fermentation hydrogen production on the growth of microorganisms is high, and the reactor generally needs to be heated by an external power supply.

Drawings

FIG. 1 is a schematic diagram of the whole structure of the split type hidden fermentation biological hydrogen production reactor of the invention.

FIG. 2 is a schematic diagram of the self-heating device according to the present invention.

Fig. 3 is a schematic diagram of the control gill ring structure of the present invention.

FIG. 4 is a schematic diagram of the structure principle of the split hydrogen generator of the invention.

Fig. 5 is a schematic diagram of the structure of the spraying device of the present invention.

Fig. 6 is a schematic diagram of the self-heating device according to the present invention.

Reference numerals: 1. the reaction bottom tank, 2, the hydrogen production collecting device, 3, the collecting main pipe, 4, the collecting branch pipe, 5, the collecting branch pipe, 6, the collecting circular pipe, 7, the second collecting branch pipe, 8, the split hydrogen generator, 9, the self-heating device, 10, the base, 11, the stirring shaft, 12, the stirring cage, 13, the friction plate, 14, the hydrogen production information processor, 15, the split hydrogen tank, 16, the split swivel mount, 18, the fixing rod, 19, the self-heating device, 20, the heating branch frame, 21, the heating plate, 22, the rotating seat, 23, the perforation, 24, the temperature sensor, 25, the stirring motor, 26, the collecting cover, 27, the rotating shaft, 28, the upper end bracket, 29, the meshing swivel mount, 30, the gill body, 31, the push ring, 32, the pneumatic push plate, 33, the pressure sensor, 34, the feeding device, 35, the feeding pipe, 36, the feeding pipe, 37, the pressurizing valve, 38, the spraying device, 39, the transverse spraying pipe, 40, the lower spraying pipe, 41, the tilting plate, 42, the tilting baffle, 43 and the control gill ring.

Detailed Description

The following describes the embodiments of the present invention in detail with reference to the drawings.

Examples

The split type hidden fermentation biological hydrogen production reactor comprises a reaction bottom tank 1, wherein a hydrogen production collecting device 2 is arranged at the upper end of the reaction bottom tank 1, the hydrogen production collecting device 2 comprises a collecting main pipe 3, a collecting branch pipe 4 and a collecting branch pipe 5 are arranged on the collecting main pipe 3, the collecting branch pipe 5 is connected to a collecting circular pipe 6, a plurality of second collecting branch pipes 7 are arranged on the collecting circular pipe 6, the second collecting branch pipes 7 are connected to the reaction bottom tank 1, a plurality of split hydrogen production devices 8 are arranged at the upper end of the reaction bottom tank 1, the split hydrogen production devices 8 are installed on the reaction bottom tank 1, a self-heating device 9 is arranged in the reaction bottom tank 1, the self-heating device 9 is rotatably connected to a base 10 of the reaction bottom tank 1, the self-heating device 9 comprises a stirring shaft 11, the stirring shaft 11 is installed on the base 10, a stirring cage 12 is arranged on the stirring shaft 11, a split hydrogen production device 8 is arranged at the upper end of the stirring cage 12, a split hydrogen production device 13 is arranged between the stirring cage 12 and a friction plate 13, and the self-heating device 14 is installed between the self-heating device and the reaction bottom tank 1; the friction plate can be driven to carry out friction heating through rotation of the stirring shaft 11, the reaction efficiency of the bottom tank is improved, the temperature requirement of biological reaction is realized, additional addition temperature is not needed, meanwhile, the temperature rising through the friction plate is uniform, the biological survival is more favorable, and the suitability of the reaction environment is improved.

The split hydrogen generator 8 comprises a split hydrogen generating tank 15 and a split rotary seat 16, wherein the lower end of the split hydrogen generating tank 15 is connected with the split rotary seat 16, a fixing rod 18 is arranged on the split rotary seat 16, the fixing rod 18 is arranged inside the split hydrogen generating tank 15, and the upper end of the fixing rod 18 is connected to the collecting branch pipe 5; the hydrogen production tank can be rotated through the split hydrogen producer 8, so that the rotation efficiency of the hydrogen production tank is improved.

The fixing rod 18 is provided with a self-heating device 19, the self-heating device 19 comprises a heating support frame 20, a heat generating plate 21 is arranged at the edge of the heating support frame 20, and the heat generating plate 21 is rotationally connected with the inner wall of the split hydrogen production tank 15; the heat generating plate 21 can drive the inside of the split hydrogen making tank to heat up, so that the fermentation efficiency is improved, and the reaction speed is further increased.

The stirring cage 12 upper end is provided with a plurality of rotation seats 22, the rotation seat 22 rotates to be connected the components of a whole that can function independently swivel mount 16, components of a whole that can function independently swivel mount 16 with be provided with perforation 23 between the rotation seat 22, perforation 23 connects components of a whole that can function independently hydrogen manufacturing jar 15 and reaction bottom jar 1, in order to guarantee the efficiency of reaction in the reaction process, rotate through continuous stirring, promote the area of contact of reaction microorganism, improve hydrogen production volume greatly, promote the hydrogen production speed in the unit time simultaneously.

A temperature sensor 24 is arranged in the split hydrogen production tank 15, the temperature sensor 24 is connected with the hydrogen production information processor 14, and the hydrogen production information processor 14 controls the rotation speed of a stirring motor 25 connected with the stirring shaft 11; the temperature sensor 24 is used for completing the temperature control of the split hydrogen production tank 15, making the temperature which is most suitable for the survival of microorganisms, controlling the temperature to be 32-37 ℃ and better improving the hydrogen production amount.

The upper end of the split hydrogen production tank 15 is rotatably connected to the collecting branch pipe 5, a collecting cover 26 is arranged at the lower end of the collecting branch pipe 5, a rotating shaft 27 is arranged in the collecting cover 26, the upper end of the rotating shaft 27 is connected to an upper end bracket 28 of the collecting branch pipe 5, the upper end bracket 28 is fixed on the inner wall of the collecting branch pipe 5, the rotating shaft 27 is rotatably connected with a meshing swivel seat 29 at the upper end of the split hydrogen production tank 15, the rotating shaft 27 and the meshing swivel seat 29 form a meshing body, and a space between the meshing body and the collecting cover 26 forms an annular channel; the split hydrogen production tank can rotate on the rotating shaft through the design of the collecting cover, the hydrogen production amount is greatly improved in the rotating process, the hydrogen is collected into the collecting branch pipe 5 through the annular channel, and the hydrogen is collected through the collecting branch pipe.

A control gill ring 43 is arranged on the rotating shaft 27, the control gill ring 43 is connected with the pressure sensor of the collecting branch pipe 4, and the control gill ring 43 can close or open an annular channel between the split hydrogen production tank 15 and the collecting branch pipe 5; the control gill ring 43 can promote the collection efficiency of hydrogen, accomplishes the hydrogen production work of microorganism through closing the gill ring in carrying out hydrogen production in-process, can promote the pressure of hydrogen production volume in the components of a whole that can function independently jar simultaneously, and hydrogen gets into collecting branch pipe in a large number rapidly simultaneously when opening the gill ring, promotes the collecting capacity of hydrogen, prevents the leakage of hydrogen simultaneously.

The control gill ring 43 comprises a gill body 30 and a push ring 31, the gill body 30 is arranged at the position of 27 circles of the rotating shaft, the push ring 31 is arranged above the gill body 30, a pneumatic push plate 32 is arranged on the push ring 31, the push ring 31 is in push connection with the gill body 30, the pneumatic push plate 32 is connected with the pressure sensor 33, and the pressure sensor 33 is connected with the hydrogen production information processor 14; the gill ring can descend the gill body under the action of the pushing ring to seal, so that the reaction efficiency of dark fermentation is improved, and the hydrogen production speed is finished.

The center of the reaction bottom tank 1 is provided with a feeding device 34, the feeding device 34 comprises a feeding pipe 35, the upper end of the feeding pipe 35 is connected with a plurality of feeding pipes 36, the feeding pipes 36 are provided with a pressurizing valve 37, and the side surfaces and the lower end of the feeding pipe 35 are respectively provided with a spraying device 38; the feeding device can improve the reaction efficiency of microorganisms, improve the hydrogen production amount of the reaction and ensure the full utilization of microorganism liquid.

The spraying device 38 comprises a transverse spraying pipe 39 and a lower spraying pipe 40, the transverse spraying pipe 39 is symmetrically arranged on two sides of the feeding pipe 35, the lower spraying pipe 40 is arranged at the lower end of the feeding pipe 35, an inclined plate 41 is arranged at the lower end of the transverse spraying pipe 39, inclined baffles 42 are arranged on two sides of the lower spraying pipe 40, reaction materials can be sprayed into the split tank through the transverse spraying pipe 39 and the lower spraying pipe 40, feeding spraying in the split tank is completed, meanwhile, spraying strength can enter the bottom of microorganism liquid, reaction of microorganisms is improved, and contact area is greatly improved.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions are considered to be within the scope of the present invention.

Claims (5)

1. The split type dark fermentation biological hydrogen production reactor comprises a reaction bottom tank, and is characterized in that a hydrogen production collecting device is arranged at the upper end of the reaction bottom tank and comprises a collecting main pipe, a collecting branch pipe and a collecting branch pipe are arranged on the collecting main pipe, the collecting branch pipe is connected to a collecting circular pipe, a plurality of second collecting branch pipes are arranged on the collecting circular pipe and connected to the reaction bottom tank, a plurality of split hydrogen production devices are arranged at the upper end of the reaction bottom tank and are installed on the reaction bottom tank, a self-heating device is arranged in the reaction bottom tank and is rotatably connected to a base of the reaction bottom tank, the self-heating device comprises a stirring shaft, the stirring shaft is installed on the base, a stirring cage is arranged on the stirring shaft, a split hydrogen production device is arranged at the upper end of the stirring cage, a friction plate is arranged at a peripheral circle of the stirring cage and is installed between the stirring cage and the reaction bottom tank, and the self-heating device is connected with a hydrogen production processor;

the split hydrogen generator comprises a split hydrogen generating tank and a split rotary seat, wherein the lower end of the split hydrogen generating tank is connected with the split rotary seat, a fixing rod is arranged on the split rotary seat, the fixing rod is arranged in the split hydrogen generating tank, and the upper end of the fixing rod is connected to the collecting branch pipe;

the fixing rod is provided with a self-heating device, the self-heating device comprises a heating support frame, the edge of the heating support frame is provided with a heat generating plate, and the heat generating plate is rotationally connected with the inner wall of the split hydrogen production tank;

the upper end of the split hydrogen production tank is rotationally connected to the collecting branch pipe, the lower end of the collecting branch pipe is provided with a collecting cover, a rotating shaft is arranged in the collecting cover, the upper end of the rotating shaft is connected to a support at the upper end of the collecting branch pipe, the support at the upper end is fixed on the inner wall of the collecting branch pipe, the rotating shaft is rotationally connected with a meshing rotary seat at the upper end of the split hydrogen production tank, the rotating shaft and the meshing rotary seat form a meshing body, and a space between the meshing body and the collecting cover forms an annular channel;

a control gill ring is arranged on the rotating shaft and connected with the collecting branch pipe pressure sensor, and the control gill ring can close or open an annular channel between the split hydrogen making tank and the collecting branch pipe;

the control gill ring comprises a gill body and a push ring, wherein the gill body is arranged at the circumferential ring of the rotating shaft, the push ring is arranged above the gill body, a pneumatic push plate is arranged on the push ring, the push ring is connected with the gill body in a pushing manner, the pneumatic push plate is connected with the pressure sensor, and the pressure sensor is connected with the hydrogen production information processor.

2. The split type hidden fermentation biological hydrogen production reactor according to claim 1, wherein a plurality of rotating seats are arranged at the upper end of the stirring cage, the rotating seats are rotationally connected with the split rotating seat, a perforation is arranged between the split rotating seat and the rotating seat, and the perforation is connected with the split hydrogen production tank and the reaction bottom tank.

3. The split type dark fermentation biological hydrogen production reactor according to claim 1, wherein a temperature sensor is arranged in the split type hydrogen production tank and is connected with a hydrogen production information processor, and the hydrogen production information processor controls the rotation speed of a stirring motor connected with the stirring shaft.

4. The split type dark fermentation biological hydrogen production reactor according to claim 1, wherein a feeding device is arranged at the center of the reaction bottom tank, the feeding device comprises a feeding pipe, the upper end of the feeding pipe is connected with a plurality of feeding pipes, a pressurizing valve is arranged on the feeding pipe, and a spraying device is respectively arranged at the side surface and the lower end of the feeding pipe.

5. The split type dark fermentation biological hydrogen production reactor according to claim 4, wherein the injection device comprises a transverse injection pipe and a lower injection pipe, the transverse injection pipe is symmetrically arranged on two sides of the feeding pipe, the lower injection pipe is arranged at the lower end of the feeding pipe, an inclined plate is arranged at the lower end of the transverse injection pipe, and inclined baffles are arranged on two sides of the lower injection pipe.