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INVENTION
Patent of the Russian Federation RU2223452
THERMAL GENERATOR FOR HEATING LIQUID ENVIRONMENT
The name of the inventor: Kalinichenko AB; Golovko V.M.
The name of the patent owner: Kalinichenko Alexander Borisovich; Golovko Vladimir Mikhailovich
Address for correspondence: 115563 , Moscow, ul.Shipilovskaya, 23, building 2, ap. 310, LF Slapneva
The effective date of the patent: 2002.07.09
The heat generator is designed for heating a liquid medium, for example water, in water heating systems, and for heating liquid media. The heat generator comprises a pump connected to the device for accelerating the movement of the liquid medium, which is communicated with the cochlea at the outlet, the latter connected to a cylindrical pipe, and a brake device arranged in the form of a hollow cup mounted on the fins is placed on the outlet section of the cylindrical pipe. The device for accelerating the motion of the liquid is made in the form of a nozzle. The cylindrical tube is mounted coaxially to the cochlea. The brake device is installed coaxially with a cylindrical pipe. The length of the ribs is equal to the height of the glass, a step diffuser is formed at the exit section of the cylindrical pipe behind the exit section of the cup, the diameter of the larger stage is equal to the inner diameter of the cylindrical tube. The length of the larger stage of the diffuser is from 0.1 to 2.0 of the internal diameters of the cylindrical tube, and the ratio of the inner diameter of the cylindrical pipe to the outer diameter of the glass is 1.2 to 1.8. As a result, it is possible to increase the efficiency of heating the liquid medium by reducing the unproductive hydraulic losses and optimizing the design of the heat generator dimensions.
DESCRIPTION OF THE INVENTION
The invention relates to heat engineering and can be used for heating a liquid medium, for example water, in water heating systems, and for heating various liquid media.
A heat generator is known for heating a liquid medium by converting the mechanical energy of rotation of the impeller to hydraulic and then to thermal energy. The heating of the liquid medium occurs due to the loss of hydraulic energy to the vortex formation and friction in the flow of a circulating liquid medium (see, for example, USSR copyright certificate No. 1703924, IPC F 24 N 3/02) .
This heat generator has a low efficiency and a sufficiently high noise level during operation.
The closest to the invention in terms of the technical essence and the result achieved is a heat generator comprising a pump connected by a discharge side to the device for accelerating the movement of the liquid medium which is communicated with the cochlea at the outlet and the latter is connected to a cylindrical pipe while the brake unit , Made in the form of a hollow glass installed on the fins (see, for example, the patent of the Russian Federation No. 2132517, IPC 7 F 24 N 3/02, published on 27.06.1999) .
This heat generator makes it possible to more effectively convert the mechanical energy of the liquid medium flow into thermal energy to heat the liquid medium. However, the efficiency of this heat generator can be improved by optimizing its size and simplifying the design of the heat generator.
The task to solve the present invention is to increase the efficiency of heating the liquid medium by reducing the unproductive hydraulic losses, and optimizing the design and dimensions of the heat generator.
The said task is achieved due to the fact that the heat generator comprises a pump connected by a discharge side to the device for accelerating the movement of the liquid medium which is communicated with the cochlea at the outlet, the latter connected to a cylindrical pipe, and a brake device arranged in the form of an installed On the ribs of the hollow beaker, the device for accelerating the movement of the liquid is made in the form of a nozzle, the cylindrical pipe is mounted coaxially with the cochlea, and the braking device is mounted coaxially with the cylindrical pipe, the length of the ribs being equal to the height of the glass; at the output section of the cylindrical pipe, , The larger diameter of which is equal to the inner diameter of the cylindrical pipe, the length of the larger stage of the diffuser is from 0.1 to 2.0 of the inner diameters of the cylindrical tube, and the ratio of the inner diameter of the cylindrical pipe to the outer diameter of the cup is 1.2 to 1.8.
In addition, the length of the ribs may be from 0.7 to 1.6 inner diameters of the cylindrical tube, and the fins may be installed radially.
In the course of the research it was revealed that the efficiency of the heat generator depends both on the mutual arrangement of the elements of the heat generator's structure and on the relative sizes of these elements of the structure.
The performance of a heat generator with a nozzle installed at the entrance to the cochlea allows the least hydraulic losses to convert the flow of liquid medium after the pump into a high-speed flow that is fed from the cochlea to the cylindrical tube. Another point to which serious attention should be paid is the inhibition of the velocity flow of the liquid medium. For the efficient operation of the plant, it is important to convert the vortex flow of the liquid medium into a rectilinear turbulent flow. This problem is solved by converting the flow from vortex into rectilinear as a result of the interaction of the flow of the liquid medium with the ribs forming along the inner wall of the cylindrical pipe along with the glass, and effectively inhibiting the flow in the step diffuser at the exit from the above longitudinal channels.
Equally important is the magnitude of the expansion of the channel when the flow of the liquid medium is slowed down. It has been found that the most optimal result is achieved with a ratio of the inner diameter of the cylindrical pipe to the outer diameter of the glass of 1.2 to 1.8, while it is advisable that the length of the channel after the glass (the length of the larger diffuser stage) be 0.1 Up to 2.0 inner diameters of the cylindrical pipe. When this channel is executed, less than 0.1 of the inner diameter of a cylindrical pipe, the flow does not have time to expand and fill the cross section of the cylindrical pipe, and the channel more than 2.0 of the internal diameters of the cylindrical pipe is impractical, since the flow has already completely changed, and the increase in the channel length has no effect On the flow regime of the liquid medium. The coaxial installation of a cochlea, a cylindrical tube and a glass, and the execution of ribs equal in length to the height of the hollow glass, allows to reduce energy losses during hydrodynamic transformation of the liquid medium flow, which additionally increases the efficiency of the heat generator.
Thus, the performance of the heat generator in the manner described above makes it possible to achieve the task set in the invention: to increase the efficiency of heating the liquid medium by reducing the unproductive hydraulic losses, and optimizing the design and dimensions of the heat generator.
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1 is a longitudinal sectional view of a heat generator, FIG. 2 is a sectional view taken along line A-A in FIG. 1. FIG.
The heat generator comprises a pump 1 connected by the delivery side to the device for accelerating the movement of the liquid medium which is communicated with the coil 2 at the outlet and the latter is connected to the cylindrical pipe 3. A brake device 4 is arranged in the outlet portion of the cylindrical pipe 3, A hollow glass 6. The device for accelerating the movement of the liquid is made in the form of a nozzle 7. The cylindrical pipe 3 is installed coaxially with the cochlea 2. The brake device 4 is mounted coaxially with the cylindrical pipe 3. The length L of the ribs 5 is equal to the height H of the cup 6. At the outlet portion of the cylindrical tube 3 The outlet section of the cup 6 forms a step diffuser 8, the diameter D 1 of the larger stage is equal to the inner diameter D 2 of the cylindrical pipe 3. The length L 2 of the larger stage of the diffuser 8 is from 0.1 to 2.0 of the inner diameters of the cylindrical pipe, and the ratio of the inner diameter D 2 of the cylindrical pipe 3 to the outer diameter D 3 of the cup 6 is from 1.2 to 1.8.
Preferably, the length L 1 of the ribs 5 is from 0.7 to 1.6 of the inner diameters D 2 of the cylindrical tube 3 and that the ribs 5 are radially installed.
The heat generator works as follows. When the liquid medium is supplied with a pump 1 through the nozzle 7 into the cochlea 2, its movement acquires a vortex character. From the cochlea 2, the vortex flow enters the cylindrical tube 3. Next, the liquid medium, washing the inner surface of the cylindrical tube 3, moves along a spiral in the direction of the braking device 4 and the step diffuser 8. With spiral motion, the fluid medium actively interacts with the inner surface of the cylindrical Tube 3 of the heat source, which leads to heating of the liquid medium and heating of the cylindrical tube 3.
Tests of the industrial sample of the heat generator and showed that to maximize the heating of the liquid medium, it is advisable to locate the braking device 4 from the inlet section of the cylindrical pipe 3 at a distance of 1000 mm to 1200 mm. Further increase in the length of the cylindrical part of the body 2 does not lead to an increase in the heating temperature of the liquid medium. Thus, a curled liquid medium enters the input of the brake device 4 with a maximum temperature of its heating. As a result of the braking of the liquid medium flow, the further heating of the liquid medium takes place first on the ribs 5 of the braking device 4 and then in the step diffuser 8, which flows from the diffuser 8 to the heat consumer, for example in the heating main, practically without loss of useful heat.
During the test of the heat generator, it was established that it is expedient to make a cylindrical pipe 3 of length 6 to 13 of its diameters, and the cross-sectional area of the outlet section of the nozzle 7, which is 0.75 to 1.1 of the cross-sectional area of the annular channel formed by the outer side surface of the cup 6 and the inner wall of the cylindrical pipe 3.
It was found that it is advisable that the diameter of the inlet section of the nozzle 7 be from 0.8 to 1.0 mm / kW in relation to the power of the pump 1. The change in the diameter of the outlet section of the nozzle 7 can be carried out by means of replaceable conical bushings which are installed in the nozzle 7.
The tests showed a high reliability of the heat generator operation with a significant simplification of its design. At the same time, the dimensions and weight decreased by 25 and 15%, respectively, the efficiency increased by 3 ... 5%.
This heat generator can be used as an independent source of thermal energy in remote areas and places where there is no centralized heat and water supply.
CLAIM
1. A heat generator comprising a pump connected to a device for accelerating the movement of a liquid medium that is communicated with a cochlea at the outlet and the latter connected to a cylindrical pipe, while a brake device is arranged in the outlet portion of the cylindrical pipe, made in the form of a hollow Cup, characterized in that the device for accelerating the movement of the liquid is made in the form of a nozzle, the cylindrical pipe is installed coaxially with the cochlea, and the braking device is installed coaxially with the cylindrical pipe, the length of the ribs being equal to the height of the cup, at the outlet section of the cylindrical pipe behind the outlet section of the cup Step diffuser whose larger diameter is equal to the inner diameter of the cylindrical pipe, the length of the larger stage of the diffuser is from 0.1 to 2.0 of the inner diameters of the cylindrical tube, and the ratio of the inner diameter of the cylindrical pipe to the outer diameter of the cup is 1.2 to 1.8 .
2. The heat generator according to claim 1, characterized in that the length of the ribs is from 0.7 to 1.6 of the inner diameters of the cylindrical pipe.
3. The heat generator according to claim 1, characterized in that the fins are installed radially.
print version
Date of publication on December 21, 2006
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