This patent application claims the benefit and priority of Chinese Patent Application No. 202111096693.5 filed on Sep. 14, 2021, the disclosure of which is incorporated by reference herein in its entirety as part of the present application.
The present disclosure relates to the technical field of nuclear energy, in particular to a device and method for third low-temperature controllable nuclear fusion.
So far, controlled nuclear fusion has not been achieved. This is because controlled nuclear fusion not only needs a high temperature of over 100 million degrees, but also meets the Lawson condition. The Lawson condition is not easy to meet for the plasma with a high temperature of more than 100 million degrees. In view of this, we put forward ways to realize nuclear fusion at low temperature [1]-[4]. Reference [4] has commented on references [1]-[3], and made improvements to their shortcomings, so I won't repeat them here. Reference [4] improved some shortcomings of references [1]-[3], but the efficiency was still low, and no specific method to control the intensity of nuclear fusion reaction was put forward. On the other hand, the nuclear fusion substances in references [1]-[4] are mainly monatomic molecules. In view of these shortcomings of documents [1]-[4], the present disclosure is proposed.
The present disclosure is characterized in that, unlike [1]-[4], the main substances used for nuclear fusion are polyatomic molecules, namely, lithium deuterate 6, lithium deuterate 7 and beryllium 9, and a specific method for controlling the intensity of nuclear fusion reaction is proposed. According to this technique, after the generation of neutrons, a neutron multiplication reaction and a self-circulating continuous nuclear fusion reaction are formed. The main reaction is that firstly deuteron reacts with deuteron to produce neutron, then neutron reacts with lithium 6 nucleus to produce tritium nucleus T. Finally, two neutrons and two helium 4 nuclei are released when T reacts with lithium 7 nucleus and neutron reacts with beryllium 9 nucleus. In these processes, nuclear energy is released. In this nuclear fusion reaction, no radioactive daughter nuclei are produced; the incident ion energy is low, and nuclear energy is easier to release, with higher efficiency, simple structure and low cost.
The present disclosure proposes the following two methods to achieve the above purpose.
The device is composed of a nuclear beam generation part J, a reactor V filled with a nuclear fusion substance, a system C for controlling the intensity and switching of the nuclear reaction, an electric heating system W, a thermal energy output system H, and an electric energy output system E;
there are a variety of choices for the nuclear beam J, wherein three kinds of nuclear energy beam is a single nucleus 50 KeV-1 MeV t triton beam, a single nucleus energy 100 KeV-5 MeV deuteron beam d, the energy of a single nucleus 2-p 10 MeV proton beam; the nuclear beam generation part J is made by ionizing chamber and positive ion linear accelerator according to known mature technology;
there are two layers of the wall of the reaction kettle V, the inner layer is a neutral reflective layer, and the outer layer is a neutral absorbing layer, and the neutral reflective layer is from beryllium atom 9Be board production; neutron absorbing layer by boron atom 10B board production; the reactor V is filled with nuclear fusion substance, and the nuclear polymented substance is from a weight ratio of 30%-70% deuterated lithium 6 molecule 6LiD and 70%-30% deuterated lithium 7 molecule constitutes 7LiD, nuclear agonuclear nucleus is also a target nuclear of the beam stream;
there are three types of reactive kettle V: rectangular shape, cylindrical, and spherical; the endonion flows into the polymetled substance, neutron, neutralization due to multiple acts, the kinetic energy is reduced, and the neutron absorption cross section increases, the thickness of the reactor V wall is not smaller than that reduces the neutron kinetic energy to 25.3 MeV, that is, the V wall thickness is determined by the average kinetic energy of the neutron; when the shape of the reaction kettle is determined, the wall thickness and volume are determined, the medium nuclear polyvertency reaction intensity of the reactor V is determined with the neutron number and the number of fractal materials; the number of neutrons depends on the nuclear beam J and N; the accelerating voltage in the accelerator is controlled so that the average energy of in the nuclear beam J is accurate, at this time, the intensity of the nuclear beam J only depends on the average density of nN in the accelerator; nN is determined by the number density of atoms in the ionization chamber and the voltage therein; in this way, the number density, voltage, voltage of the atom in the ionization chamber is controlled according to the known conventional method, and the average energy of the core J and the core is controlled by the voltage in the accelerator;
the cross section of the neutron generated in the nuclear stream J nucleation and the target nuclear collision decisively N, Only if EN In a certain range (EN1, EN2) within this cross-section σN It was significantly different from zero; and for a selected nuclear incident target nucleus, (EN1, EN2) Is determined, and when EN take the corresponding specific value EN0 and σN takes a maximum value; in selecting the acceleration voltage of the accelerator, such that EN in (EN1, EN2) within the range.
Selecting the accelerator voltage in the accelerator, so that a system C for controlling the intensity of the nuclear reaction and the opening and closing is cooled to a liquid state by a nuclear beam intensity control device J, a fusion substance quantity N control device, and a fusion substance vapor, and finally refluxed to the reaction vessel, controlling the intensity of the nuclear beam J and the average energy of the are means for controlling the number density of atoms in the ionization chamber, the voltage, and the voltage in the accelerator, the larger the J, the stronger the fusion reaction;
the bottom plate of the reaction kettle V is a valve that can be opened and closed, and the size of the valve opening O is automatically controlled according to the input signal; the molten fusion material, that is, the molten liquid, can flow out from the opening O, so that the fusion material is reduced and the fusion reaction is weakened; when the accelerator is turned off and the fusion material is completely released, the fusion reaction stops; the reaction kettle V is filled with fusion substances, the accelerator is turned on, and the nuclear beam J is input, so that the fusion reaction begins; the opening O is connected with a plurality of shallow pipes P with a depth of d, wherein d is the maximum depth of the shallow pipes P where the nuclear fusion reaction cannot continue, and the number of the shallow pipes P is determined according to the needs; the molten liquid can also flow into the reactor V through the shallow pipe P from the opening O under the push of the push rod made of beryllium atom 9Be, and the fusion substances in V increase, the reaction is enhanced and the temperature rises; another way to control the reaction intensity is to insert the isolation plate made of boron 10 into the molten fusion material; the depth of insertion, according to the need to determine; the deeper the insertion, the more the fusion reaction weakens; full insertion, the fusion reaction stops; this is because boron 10 can significantly absorb neutrons, and the deeper it is inserted, the more the number of neutrons participating in the fusion reaction decreases; complete insertion can make the number of neutrons lower than the sustained reaction threshold;
the intensity of the polyvertency reaction is controlled by controlling the temperature of the polydreatment reaction. The temperature measuring instrument T is mounted above the reaction kettle V, T transforms the measurement result into the corresponding electrical signal, and delivers the electrical signal to the core J control system and the valve control system. Controlling the temperature of the polydree at its boiling point T0 the following. When the temperature is close to T0 When the temperature control device outputs the signal to the control nuclear reaction strength and the system C, the reduction of beam J and the number of polygraphic substances, thereby reducing nuclear reaction strength and temperature; when the polylate temperature is less than 700° C., open the valve, push the polymented substance in the shallow P push back into the reaction kettle, enhance the rib stream J, increase the reinforcement, and the temperature increases; another method is that when the temperature is close to, the boron 10 isolation plate is inserted into an appropriate depth to reduce the reaction intensity; when the temperature of the fusion material is lower than 700° C., the boron 10 isolation plate is pulled out, and the reaction is enhanced and the temperature rises.
When the fusion reaction makes the temperature of the fusion substance exceed its melting point, the vapor of the fusion substance will be produced; When the boiling point is reached, a large amount of steam is produced. After the steam flows out, the fusion substance decreases and the reaction intensity decreases. The steam flows from the steam outlet above the reaction kettle to the steam pipeline, which is connected to the cylinder below the bottom plate of the reaction kettle. The steam pipeline is made of boron 10, and a cooling fluid pipeline is arranged outside the steam pipeline, the circulating fluid in the cooling fluid pipeline cools the fusion substance steam in the steam pipeline into a liquid state; the outlet of the steam pipeline is on the cylinder below the bottom plate of the reaction kettle, and a one-way open valve is installed at the outlet after the fusion material steam is cooled to liquid state, it pushes the one-way valve along the pipeline, flows into the cylinder under the bottom plate of the reaction kettle, and is finally pushed back to the reaction kettle V, the one-way valve blocks the molten liquid in the cylinder from flowing to the steam pipeline.
Nuclear beam accelerated by the linear accelerator to J energy setting, perpendicularly incident on the fusion material, with the nuclear fusion reactions occurring substance released neutrons, neutron induced nuclear fusion reactor materials series, neutrons and other particles released and nuclear; triton t corresponding to the beam, the neutrons released major nuclear reaction is as follows:
2H(t,n)4He,Q=17.6 MeV (1)
7Li(t,n2α)n,Q=8.864 MeV (2)
the main nuclear reactions corresponding to deuteron d beam and neutron release are as follows:
2H(d,n)He3,Q=3.26891 MeV (3)
7Li(d,nα)He4,Q=15.12168 MeV, (4)
7Li(d,p)Li8,Q=−0.19194 MeV, (5)
8Li→β−+2α+16 MeV,T1/2=838m, (6)
The main nuclear reactions corresponding to proton P beam and neutron release are as follows:
2H(p,np)1H,Q=−2.22457 MeV, (7)
7Li(p,n)7Be,Q=−1.64424 MeV, (8)
7Be+e−→7Li+0.8819 MeV,T1/2=53.29d (9)
The main fusion reactions caused by neutrons are as follows:
6Li(n,t)4He,Q=4.783 MeV, (10)
6Li(n,nd)4He,Q=−1.47515 MeV, (11)
2H(n,2n)1H,Q=−2.224 MeV, (12)
7Li(n,nα)3H,Q=−2.46515 MeV, (13)
3He(n,p)3H,Q=0.764 MeV, (14)
It can be seen from (1)-(14) that these reactions constitute a circular and sustainable reaction; beryllium has a large reflection cross section for neutrons, especially for low energy neutrons, so the neutron reflection layer is made; a neutron absorption layer is arranged on the outer surface of the reactor V; the absorption cross section of boron for neutrons is very large, therefore, the neutron absorption layer is made;
the reaction is as follows,
10B(n,α)7Li,,Q=2.79055 MeV, (15)
10B(n,tα)4He,,Q=2.79055 MeV (16)
the thermal energy output system H generated by the nuclear reaction is composed of cooling fluid in the gap between the neutron absorption layer and the outer shell layer and the pipeline connected with it, and a power device that drives these fluids to circulate;
conductor system power output terminal E from the DC power supply, DC power supply, respectively positive and negative electrodes and electrical communication with the opposite points in the reactor configuration V, such that the nuclear reaction produced positive ions and electrons to flow through the electrical power supply, respectively, a negative electrode and the positive electrode, the output power;
an electric heating device W is arranged below a plurality of shallow pipelines P connected with the valve opening O, which can reheat and melt the cooled and solidified fusion material as required;
the manner described above, the reactor charged proportionally V lithium deuteride fusion material 6 and lithium 7 deuteride, accelerator actuation, the input beam nuclear, nuclear energy is released there; otherwise, turn off the accelerator, the substance flowing from the fusion reactor, nuclear reaction stops.
The second method is characterized in the fusion material, beryllium pow 9Be is added in a weight ratio of 20 to 60 percent of lithium deuterate 6, 60 to 20 percent of lithium deuterate 7, beryllium powder 9Be is 20 to 40 percent; the main nuclear reaction associated with beryllium is:
9Be(d,α)Q=7.15215 MeV, (17)
9Be(d,t)8Be,Q=4.59269 MeV, (18)
8Be→2α+0.09188,T1/2=6.7 eV (19)
9Be(d,γ)11B,Q=15.81646 MeV, (20)
9Be(d,d2α)n,Q=−1.5727 MeV, (21)
9Be(d,2α)3H,Q=4.68453 MeV, (22)
9Be(n,2n)8Be,Q=−1.6655 MeV, (23)
9Be(n,α)6He,Q=−0.598 MeV, (24)
6He→β−+6Li+3.5067 MeV,T1/2=806.7m (25)
9Be(t,n)11B,Q=9.55924 MeV, (26)
9Be(t,t2α)n,Q=−1.5727 MeV, (27)
9Be(t,nd2α)n,Q=−1.5727 MeV, (28)
9Be(α,n)′2C,Q=5.70205 MeV, (29)
9Be(α,nα)8Be,Q=−1.66454 MeV, (30)
9Be(p,n)9B,Q=−1.66454 MeV, (31)
9B→p+2α+0.2771 MeV,T1/2=0.54 keV (32)
In order to enable those skilled in the art to better understand the technical scheme of the present disclosure, the present disclosure will be further described in detail below with reference to the accompanying drawings. Traditionally, deuterium ion D was ionized from heavy water and transported to accelerator with accelerating voltage of 200,000 volts and current of 50 μA. Take 50 g of lithium deuteride 6, 30 g of lithium deuteride 7 and 20 g of beryllium powder, and fill them into the cylindrical container V. V has an internal height of 62 mm, an internal diameter of 64 mm, a volume of 200 ml and a wall thickness of 40 mm, in which the neutron reflection layer made of 9Be is 20 mm thick, and the neutron absorption layer made of 10B is 20 mm thick. The bottom plate of the cylinder is a valve that can automatically open, close or open an appropriate opening according to the need. Connected to the bottom is a round pipe with an inner diameter of 64 mm, which is connected to 50 shallow pipes P with a length of 400 mm, a depth of 1.1 mm and a horizontal position. After the valve is opened, the molten liquid in the reactor V flows into these shallow pipes P. The shallow pipe P is made of 5 mm thick boron 10. At the end of the shallow pipe P there is a melt push rod matched to the pipe of rectangular cross section, which can push the melt back into the reaction vessel V.
There is a steel shell outside the neutron absorption layer, which is 5 cm apart. In this gap and the pipeline connected with it, there is cooling water that circulates under the drive of the pump.
In the reaction kettle V, the two points of the diameter are connected to the positive and negative electrodes of the 100 volt DC power supply with a wire and a series electrical appliance, respectively, so that the electron and positive ions generated by the V is flowed to the positive and negative electrode of the DC power supply, respectively.
The infrared temperature measurement is mounted above the reactor V. The measurement results are converted to the corresponding electrical signal T, the electrical signal is delivered to the core control system and the valve control system.
After making this nuclear fusion device in the above manner, the acceleration voltage and the ionion current are adjusted to 20,000 volts and 50 μA, respectively, and the ionion is vertically incident to fill the deuterated lithium 6, deuterated lithium 7 and beryllium. 9 of the container. Various reactions of neutron proliferation and (1)-(32) occur in the polylate substance, release nuclear energy, these nuclear energy conversion to thermal energy and electrical energy delivery.
When the polyverted temperature is close to 1000° C., the temperature control device is automatically activated, and the core stream j is automatically reduced. At the same time, the valve opening opens, the polymetled substance in the container V is reduced, the nuclear polymerization reaction is reduced, the temperature is reduced; when the temperature reaches or exceeds 1000° C. At the time, J is reduced to zero, and the polylate substance completely flows out and dispersed into the shallow Pipe P, and the nuclear polymetry reaction stops. When the temperature is reduced to 700 degrees, the J to a very large, open the valve, reinstall the fused polylate substance in the conduit P to reinforce the reaction.
Number | Date | Country | Kind |
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202111096693.5 | Sep 2021 | CN | national |