CN201265434Y

CN201265434Y - Low-heat engine

Info

Publication number: CN201265434Y
Application number: CNU2008201716964U
Authority: CN
Inventors: 殷红波
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-19
Filing date: 2008-09-19
Publication date: 2009-07-01
Anticipated expiration: 2018-09-19

Abstract

The utility model relates to a low-heat engine which belongs to an energy conversion device. The low-heat engine is provided with a low-boiling-point medium evaporator used for receiving the waste heat medium for heat exchange, a medium outlet of the evaporator is connected with a one-level chamber of an impeller chamber, a medium inlet of the evaporator is connected with a two-level chamber of the impeller chamber, and the outlet of the one-level chamber is connected with the inlet of the two-level chamber. The impeller chamber comprises a chamber body, vanes inside the chamber body and an impeller shaft, wherein the diameter of the impeller shaft is less than the internal diameter of internal cavity of the chamber body, one side of the impeller shaft is in close contact with one side of the internal cavity of the chamber body to form an isolation part, the inlet and the outlet connected with the chamber body are respectively positioned at both sides of the partition, the vanes penetrate through vane holes in the impeller shaft and are in close contact with the internal cavity of the chamber body, and the internal cavity of the chamber body is divided into the one-level chamber and the two-level chamber by an isolation board. The low-heat engine can convert low-temperature heat energy into mechanical energy, reduce energy waste and protect the living environment.

Description

Low heating engine

Technical field

The utility model relates to a kind of low heating engine, is used for low temperature heat energy is converted into mechanical energy, belongs to energy conversion device.

Background technique

In practice, follow industrial production, have a variety of thermal mediums of taking to be discharged usually, as power plant's steamer exhaust, kiln gas, production cooling exhaust and Iron And Steel Plant's cooling water etc., the heat that discharge medium is carried is wasted, and causes atmospheric heat to pollute.

With Building Materials Factory's roller way kiln cooling exhaust is example, and delivery temperature is generally 140～180 ℃, and the air outlet flue diameter is 0.8～1.2m, and airspeed is 15～17m/s.With 180 ℃ of delivery temperatures, air outlet flue diameter be 1m, airspeed be 17m/s, cooling water water temperature to be 40 ℃ be that example is calculated, the heat that per hour enters atmosphere is (1/2) ²* 3.14 * 17 * 3600 * (180-40) * 1.293=8696562.8 kilojoule is equivalent to the heat that 2415.7 kilowatts of electric furnaces sent in 1 hour.

As seen, thermal waste is serious, not only has the energy waste problem, but also can cause atmosphere to warm, and destroys living environment.

The model utility content

The purpose of this utility model is to provide a kind of low heating engine, can be converted into mechanical energy to low temperature heat energy, reduces energy waste, conserves natural habitats.

Low heating engine described in the utility model, have and accept the low boiling point working medium vaporizer that the waste heat medium carries out heat exchange, the media outlet of vaporizer connects the one-level storehouse in impeller storehouse, the medium import of vaporizer connects the secondary storehouse in impeller storehouse, the outlet in one-level storehouse connects the import in secondary storehouse, the impeller storehouse comprises warehouse, blade and impeller shaft in the warehouse, the impeller shaft diameter is less than warehouse inner chamber internal diameter, impeller shaft one side closely contacts with warehouse inner chamber one side and forms isolation place, connect the import of warehouse and the both sides that outlet lays respectively at isolation place, blade passes the blade perforation on the impeller shaft and closely contacts with the warehouse inner chamber, and isolating plate is divided into two sections in one-level storehouse and secondary storehouse with the warehouse inner chamber.

Low boiling point working medium vaporizers such as difluoromethane are through heat exchange, acceptance take thermal medium carry waste heat after, form high temperature and high pressure gas, enter the one-level storehouse, promote blade rotation, a slice or two blades constitute impeller, impeller shaft one side closely contacts with warehouse inner chamber one side and forms isolation place, blade is along with the rotation of impeller shaft has change in displacement by the perforation of the blade on the impeller shaft, the isolation performance that guarantees blade closely to contact and form with the warehouse inner chamber, high temperature and high pressure gas enters the secondary storehouse then, waste heat makes the medium gasification further promote blade rotation, obtain outputting power from the impeller shaft that rotates, rotational power can directly be provided, can directly drive generator, power equipment such as pebble mill and blower fan.The waste heat medium, as power plant's steamer exhaust, kiln gas, production cooling exhaust and Iron And Steel Plant's cooling water etc., through after the heat exchange, heat is absorbed and used, and has alleviated energy waste, has protected living environment.If a cyclic process UTILIZATION OF VESIDUAL HEAT IN degree is not enough, can set up three grades, level Four or more impeller storehouse and usefulness again, waste heat is fully used.

Can connect flying wheel in the outer end of impeller shaft, make things convenient for the inertia rotation and the stability of impeller shaft, help cryopumping and directly be back to vaporizer, reduce latent heat losses, increase operation rate.

On the secondary storehouse, establish low boiling point working medium second import and low boiling point working medium second outlet, be connected with condenser between low boiling point working medium second import and second outlet,, create environment under low pressure, make steam acting and medium circulation by condenser.

Each import in the secondary storehouse exports with each establishes back only valve respectively, also claims check valve, guarantees the unidirectional operation of low boiling point working medium, prevents reverse backflow, improves conversion ratio.

Atomizer is established in the low boiling point working medium import of secondary storehouse, is beneficial to the low boiling point working medium atomizing that enters the secondary storehouse once more, absorbs waste heat, once more acting.

Be connected suction booster between the low boiling point working medium import of secondary storehouse and the condenser, when pressure is not enough, can start suction booster, replenish mobilization dynamic and atomization pressure that low boiling point working medium is provided, it is stable to keep-up pressure.Can also between low boiling point working medium import and suction booster, be connected accumulator and establish back only valve, be used for forming voluntarily discharge pressure, energy efficient, accumulator can be a simple sealed container, and top is filled with inert gas, the low boiling point working medium of bottom splendid attire liquid state, because the elastic compression of inert gas, pressure is kept within the specific limits, and control the suction booster intermitten service automatically, reach energy-conservation purpose.For the small-power electricity generating device, as solar water generating, generator and gearbox can be one with the assembling of the utility model motor, increase tightness, reduce seal friction loss.

On vaporizer, establish second import and be furnished with the atomizer of the control of being stressed, vaporizer second import is communicated with the accumulator outlet, when evaporator pressure during less than setting value, the hyperbaric environment in the vaporizer is kept in the low boiling point working medium that sprays into atomizing from second import of the vaporizer expansion of gasifying after absorbing heat.

Can establish control valve on each connecting pipeline in the utility model, the motor output work is controlled, also can use solenoid valve, conveniently control automatically.

Compared with prior art, the utlity model has following beneficial effect:

The utility model low heating engine; scientific and reasonable for structure; can be converted into mechanical energy to low temperature heat energy effectively; especially make full use of the waste heat that discharge medium such as power plant's steamer exhaust, kiln gas, production cooling exhaust and Iron And Steel Plant's cooling water are carried; reduce energy waste, conserve natural habitats.The utility model low heating engine also can directly use solar water.

Description of drawings

Fig. 1, the utility model one example structure principle schematic.

Impeller chamber structure schematic representation among Fig. 2, the utility model embodiment.

Fig. 3, impeller cavity inwall molded lines schematic representation.

Blade structure schematic representation in Fig. 4, the impeller storehouse.

The cooperating structure schematic representation of two blades in Fig. 5, the impeller storehouse.

Among the figure: 1, vaporizer 2, modulating valve 3, one-level storehouse 4, blade 5, connecting tube 6, import 7, import 8, secondary storehouse 9,

outlet

10,11, outlet 12, condenser 13, suction booster 14, accumulator 15, inert gas 16, low boiling point working medium 17, outlet 18, impeller shaft 19, warehouse

inner chamber

20,21, import 22, end cap 23, isolating plate 24, flying wheel 25, bearing 26, seal ring.

Embodiment

The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.

As shown in the figure, low heating engine described in the utility model, have and accept the low boiling point working medium vaporizer 1 that the waste heat medium carries out heat exchange, the media outlet of vaporizer 1 (is understood for convenient through the one-level storehouse 3 that modulating valve 2 connects the impeller storehouse, independent diagram has been carried out separating with the secondary storehouse in the one-level storehouse among Fig. 1), the medium import 21 of vaporizer 1 connects the outlet 9 in the secondary storehouse 8 in impeller storehouse, the outlet 17 in one-level storehouse connects the import 7 in secondary storehouse 8 by connecting tube 5, the impeller storehouse comprises warehouse, blade and impeller shaft 18 in the warehouse, impeller shaft 18 diameters are less than the internal diameter of warehouse inner chamber 19, impeller shaft 18 upsides closely contact with the upside of warehouse inner chamber 19 and form isolation place, connect the import 20 of warehouse, 7 and the

outlet

17,9 lay respectively at the both sides of isolation place, blade 4 passes the blade perforation on the impeller shaft 18 and closely contacts with warehouse inner chamber 19, isolating plate 23 is divided into 8 two sections in one-level storehouse 3 and secondary storehouse with the warehouse inner chamber, the outer end of impeller shaft 18 is connected with flying wheel 24, is used for adjusting and keeping rotatory inertia.The part Low Temperature Steam is directly pushed back vaporizer, improve heat utilization efficiency.

Secondary storehouse 8 is provided with low boiling point working medium second import 6 and low boiling point working medium

second outlet

11,10, import 6 is provided with atomizer, be connected with accumulator 14, suction booster 13 and condenser 12 in turn between low boiling point working medium second import 6 and

second outlet

11,10, accumulator 14 is a closed container, the bottom is loaded with liquid low boiling point working medium 16, top is the inert gas 15 by low boiling point working medium 16 sealings, realizes that pressure keeps within the specific limits.

Each

import

6,7 in secondary storehouse and respectively exporting is respectively equipped with back only valve on 9,11,10, connect solenoid valve in the outlet 10, conveniently regulates automatically and starts assist control.Establish back only valve in accumulator 14 imports.

Establish second import on the vaporizer 1 and be furnished with the atomizer of the control of being stressed, vaporizer second import is communicated with accumulator 14 outlets, when the pressure of vaporizer 1 during less than setting value, the hyperbaric environment in the vaporizer is kept in the low boiling point working medium that sprays into atomizing from second import of vaporizer 1 expansion of gasifying after absorbing heat.

The impeller shaft place at two ends, impeller storehouse is provided with bearing 25, is beneficial to the rotation of impeller shaft 18, and isolating plate 23 places of two ends, impeller storehouse and inner chamber are provided with seal ring 26 respectively, strengthens air-tightness.

The impeller cavity inwall is non-circular, shown in Fig. 3 molded lines schematic representation, its molded lines equation is: b=L/2+esinA, in the formula: L is a length of blade, e for the distance of center circle of center of circle O ' and center of circle O in the diagram (O ' be the center of circle of impeller shaft, O is the cylindrical center of circle), b is center of circle O ' to the distance of impeller cavity inwall (be the molded lines function, belong to variable, change with the variation of included angle A), A is the angle of b and X positive axis, and scope is 0-360 degree.The impeller cavity inwall is molded lines design, guaranteed blade edge all the time with warehouse in cavity wall closely contact and form isolation, both guaranteed tightness, again blade rubbing is dropped to minimum.

Working principle:

Low boiling point working medium vaporizers such as difluoromethane 1 are through heat exchange, accept the waste heat medium (as power plant's steamer exhaust, kiln gas, produce cooling exhaust and Iron And Steel Plant's cooling water etc.) carry waste heat after, form high temperature and high pressure gas, enter one-level storehouse 3, promoting blade 4 rotates, impeller can be made of a slice blade, also can constitute by two, blade is along with the rotation of impeller shaft 18 has change in displacement by the perforation of the blade on the impeller shaft 18, on the one hand, guarantee that impeller shaft 18 upsides and warehouse inner chamber 19 upsides closely contact formation isolation place all the time, on the other hand, the isolation performance that guarantees blade edge closely to contact with warehouse inner chamber 19 inwalls all the time and form, high temperature and high pressure gas enters secondary storehouse 8 from exporting 17 process connecting tubes 5 then, further discharge waste heat and promote blade rotation, obtain outputting power, can directly drive generator from the impeller shaft that rotates, power equipment such as pebble mill and blower fan.

Condenser 12 is created environment under low pressure, for the operation of motor creates conditions; Suction booster 13 can replenish mobilization dynamic and the atomization pressure that low boiling point working medium is provided; Accumulator 14 is used for controlling voluntarily suction booster 13, stores discharge pressure voluntarily, energy efficient.

If cyclic process cooling dynamics is not enough, can set up three grades, level Four or leafier storehouse and the usefulness of taking turns again, waste heat is fully used.

Claims

1, a kind of low heating engine, it is characterized in that having and accept the low boiling point working medium vaporizer that the waste heat medium carries out heat exchange, the media outlet of vaporizer connects the one-level storehouse in impeller storehouse, the medium import of vaporizer connects the secondary storehouse in impeller storehouse, the outlet in one-level storehouse connects the import in secondary storehouse, the impeller storehouse comprises warehouse, blade and impeller shaft in the warehouse, the impeller shaft diameter is less than warehouse inner chamber internal diameter, impeller shaft one side closely contacts with warehouse inner chamber one side and forms isolation place, connect the import of warehouse and the both sides that outlet lays respectively at isolation place, blade passes the blade perforation on the impeller shaft and closely contacts with the warehouse inner chamber, and isolating plate is divided into two sections in one-level storehouse and secondary storehouse with the warehouse inner chamber.

2, low heating engine according to claim 1 is characterized in that the outer end of impeller shaft is connected with flying wheel.

3, low heating engine according to claim 1 is characterized in that the secondary storehouse is provided with low boiling point working medium second import and low boiling point working medium second outlet, is connected with condenser between low boiling point working medium second import and second outlet.

4, low heating engine according to claim 3 is characterized in that being respectively equipped with back in each import in secondary storehouse and each outlet and ends valve.

5,, it is characterized in that the low boiling point working medium import of secondary storehouse is provided with atomizer according to claim 1,2,3 or 4 described low heating engines.

6, low heating engine according to claim 5 is characterized in that being connected with suction booster between low boiling point working medium import of secondary storehouse and the condenser.

7, low heating engine according to claim 6 is characterized in that being connected with accumulator between low boiling point working medium import of secondary storehouse and the suction booster and establishes back only valve.

8, low heating engine according to claim 7 is characterized in that accumulator is a closed container.