CN2283800Y

CN2283800Y - Small-sized internal combustion thermal power generation unit

Info

Publication number: CN2283800Y
Application number: CN 96242156
Authority: CN
Inventors: 陶予敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-09
Filing date: 1996-10-09
Publication date: 1998-06-10
Anticipated expiration: 2006-10-09

Abstract

The utility model discloses a small internal combustion firepower generator set which is mainly composed of a reaction furnace (14), a heat exchanger (16), a washing filter (21) and an internal combustion generator set (23), wherein the reaction furnace has a sealed structure, the upper end of the reaction furnace is provided with a coal bin (4) in which coal can be continuously fed, and the reaction furnace (14) is communicated with the heat exchanger (16) via a hot gas outlet (8) and a hot steam inlet (9); the heat exchanger is respectively communicated with a water tank (19) and the washing filter (21) via a water filling port and a low-temperature raw gas outlet (20). Pure gas which is already washed and filtered is used for the power generation of the internal combustion generator set. The utility model has the advantages of reasonable structural design and convenient operation, maintenance and use; moreover, because diesel is replaced by coal, the generating cost can be greatly reduced.

Description

Small-sized internal combustion thermal power generation unit

The utility model belongs to the power generating equipment technical field, and what relate generally to is a kind of small-sized internal combustion thermal power generation unit.

At present, the small power generation unit majority below 500 kilowatts all is to adopt diesel generating set, because the equipment manufacturing cost and the fuel cost of such generator set are higher, thereby causes cost of electricity-generating higher.In order to reduce cost of electricity-generating and equipment manufacturing cost, except selecting energy-efficient fuel oil for use, generally all be that (in the diesel engine allowed band) strengthens generation load, though like this can energy saving, reduce cost of electricity-generating, but unit is easy to be out of order, and product performance poor stability, amount of maintenance are big, have a strong impact on the working life of diesel generating set, thereby restricted promoting the use of of diesel generating set.

The purpose of this utility model promptly produces thus, proposes a kind of coal for replacing oil of using, and can reduce cost of electricity-generating significantly, prolongation unit working life, and the power generating equipment structural design is simple, stable and reliable for performance, the small-sized easily internal combustion thermal power generation of operation and maintenance unit.

For achieving the above object, the utility model is achieved through the following technical solutions: it is main by being made of reaction furnace, heat exchanger, gas purification filter and internal combustion engine generator group, reaction furnace is a seal structure, its upper end is continuously the coal bin of coal, and the fire grate in it is plug-type bascule of quantitatively slagging tap; Reaction furnace is communicated with heat exchanger by heating gas outlet and hot steam inlet; Heat exchanger also is communicated with water tank and washing filter respectively by water filling hole and low temperature rough gas outlet simultaneously; Pure coal gas through the washing and filtering gained uses for the generating of internal combustion engine generator group after solenoid valve is regulated automatically.

The utility model reasonable in design, because it adopts coal to replace diesel oil, thereby has reduced cost of electricity-generating, with diesel oil act as a fuel (1.84 yuan/liter of diesel oil), general cost 0.9-1.3 unit/degree, and act as a fuel (0.16 yuan/kilogram in coal) generally only for 0.12-0.18 unit/degree with coal.Because fire coal can add in the reaction furnace continuously, and slag can quantitatively be discharged, thereby make unit operation safe and reliable, easy to operate, product performance are stable, and generator set is moved under middle load, prolonged the working life of unit greatly, having reduced amount of maintenance, is that vast factories and miness, cities and towns, oil field, mine etc. are as illumination or the comparatively ideal small power generation equipment of power.

The utility model has following accompanying drawing:

Accompanying drawing 1 is the structural representation of the utility model generator set.

Accompanying drawing 2 is the utility model reaction furnace structural representation.

Accompanying drawing 3 is the utility model fire grate structure schematic representation.

Accompanying drawing 4 is the utility model solenoid valve control circuit schematic diagram.

In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:

As shown in Figure 1: present embodiment mainly is made of reaction furnace 14, heat exchanger 16, water tank 19, washing filter 21 and internal combustion engine generator group 23.Reaction furnace 14 is sealing configuration (as shown in Figure 2), its upper end is provided with the coal bin 4 of coal in reaction furnace continuously, be provided with screw rod lift device 2 in the coal bin 4, the upper end of screw rod is a wind, its lower end be used to seal coal bin 4 and reaction furnace 14 go into coal valve 3, on coal bin 4, also be provided with coal valve 1 and inert gas entry port 5 and exhaust port 6.Stove tube 10 usefulness refractory materials in the reaction furnace 14 are built into, the fire grate 12 that its lower end is provided with is a three-decker, it is fixed on the support, upper and lower two-layer fire grate is by load push-pull 11 synchronous move left and right, the mesosphere maintains static, upper and lower two-layer fire grate is the intersection structural arrangement, and the mesosphere is for being spaced.The bottom of fire grate 12 is discharged body of heater for storage slag mechanism, its slag by the valve 13 of slagging tap.Also be provided with the prober 7 that is used to survey coal seam in the stove on the reaction furnace 14, it is

The type structure, handle and detecting head move in the same way.Also be provided with the heating gas outlet 8 and the hot air inlet 9 that are communicated with heat exchanger 16 on the reaction furnace 14, heat exchanger 16 also is communicated with water tank 19 and washing filter 21 by water filling hole and the outlet of low crude-gas 20 simultaneously, intermediate portion in the heat exchanger 16 is provided with the pipeline that several heat supply coal gas pass through, and the periphery of pipeline is an exchanged water.The bottom of washing filter 21 is that water, intermediate portion are coke, and the pure coal gas behind washing and filtering is regulated the back by solenoid valve 22 and used for internal combustion engine generator group (prior art) generating.Solenoid valve is arranged between washing filter 21 and the internal combustion engine generator group 23, and its effect is a frequency of adjusting generator, and its current/voltage is remained on about 6V.The regulating circuit of solenoid valve 22 (as shown in Figure 4): voltage stabilizer uses electric network source (50 hertz of standards) that C point and D point potential difference are adjusted into zero before use in advance, the electricity that generator sends is after transformer B transformation, the frequency signal that given 6V ac power supply and generator send, L ₁And L ₂Effect be to stop the logical low frequency of high frequency, C ₁And C ₈Effect be logical high frequency, resistance low frequency, so when power supply frequency reduces, the rising of a point current potential, the reduction of b point current potential, when power supply frequency raises, the reduction of a point current potential, the rising of b point current potential.D ₁, D ₃Be BG ₁, BG ₂Base supply is provided, and the signal source is provided.C ₁-C ₇Be electric capacity of voltage regulation, D ₂Be BG ₁, BG ₂Provide power supply, R ₃, R ₃Be emitter resistance, and the frequency stabilizer current path is provided.R ₂, R ₅Cooperate R ₁, R ₂Under standard frequency, adjust BG ₁, BG ₂Base current, the current potential of 2 of C, D is equated.The transport process of its electrical signal is: it is 50 hertz that the power supply electricity that generator set sends is set cycle, and voltage is power 400V, illumination 230V, when the generator set manually-operable enters normal operation, supply voltage is become about 6V, passes through L then ₁, C ₁And L ₂, C ₈Frequency-selecting, a point current potential slightly raises if frequency is low, passes through BG ₁The raise-position of C point is raise, when frequency is low then b point current potential slightly reduce, by amplifier BG ₂D point current potential is reduced, and the forward potential difference that is produced between C, D promotes solenoid valve and opens the throttle, and frequency is raise.Otherwise, if the power supply frequency height will make C point current potential low, D point current potential height, the negative electricity potential difference that produces between C, D will promote solenoid valve and reduce throttle, thereby power supply frequency is reduced.Working procedure of the present utility model is as follows: open valve 1 feed coal is added in the coal bin 4 thus, close valve 1, open inert gas gateway valve 5 again, 6, allow inert gas that the replacement of oxygen of carrying secretly in the feed coal is gone out, throttle down after replacement process is finished, the rotation and lifting device 2 then, opening coal valve 3 adds feed coal in the reaction furnace 14, close valve, prize wood fragments piece or wooden carbon add burner hearth, light from valve 13 behind the interpolation diesel oil, and send into air from HAI Heated Air Intake pipe 9, fire box temperature is risen, continue in reaction furnace, to add the feed coal of handling, till prober 7 can detect, furnace temperature is risen to about 900 ℃ then, water is observed steam pipe 17 after adding heat exchanger 16 from water tank 19, produces to start shooting if any steam and generates electricity.The mixed gas of steam and air is entered in the reaction furnace 14 by HAI Heated Air Intake pipe 8, in burner hearth, generate the crude-gas of heat with the fire coal reaction, crude-gas enters heat exchanger 16 from heating gas outlet 8, crude-gas cooling back enters washing filter 21 from low temperature coal gas outlet 20 under the effect of heat exchanger 16, heating gas with the exchange process of heat exchanger in the steam that produced return in the burner hearth by hot air inlet 9, further use for the reaction furnace reaction.Entering 23 generatings of internal combustion engine generator group through the pure coal gas behind washing filter 21 washing and filterings after solenoid valve 22 is regulated uses.

Claims

1, a kind of small-sized internal combustion thermal power generation unit, comprise internal combustion engine generator group (23), of the present utility model being characterised in that: also be provided with reaction furnace (14), heat exchanger (16), washing filter (21) simultaneously, described reaction furnace (14) is a seal structure, its upper end is provided with continuously the coal bin ⑷ of coal, the bascule of the fire grate (12) that is provided with in it for can quantitatively slagging tap; Reaction furnace (14) is communicated with heat exchanger (16) by heating gas outlet (8) and hot steam inlet (9); Heat exchanger (16) also is communicated with water tank (19) and washing filter (21) respectively by water filling hole and low temperature rough gas outlet (20) simultaneously; The top of washing filter (21) is communicated with the internal combustion engine generator group by pure gas exit.

2, small-sized internal combustion thermal power generation unit according to claim 1 is characterized in that: described moving grate (12) is a three-decker, and its upper and lower layer fire grate is staggered to be arranged, and moves by load push-pull (11) is synchronously left and right; The mesosphere fire grate is distributed in distance, and it maintains static.

3, small-sized internal combustion thermal power generation unit according to claim 1, it is characterized in that: between described washing filter (21) and internal combustion engine generator group (23), be provided with the frequency that is used to adjust generator, and make its current/voltage remain on solenoid valve about 6V.

4, small-sized internal combustion thermal power generation unit according to claim 1, it is characterized in that: be provided with screw type lift device (2) in the described coal bin of coal continuously (4), the upper end of screw rod is a wind, coal valve (3) is gone into for what be used to seal coal bin (4) and reaction furnace (14) in its lower end, also is provided with into coal valve (1) and inert gas entry port (5) and exhaust port (6) on coal bin (4) simultaneously.

5, small-sized internal combustion thermal power generation unit according to claim 1 is characterized in that: the intermediate portion in the described heat exchanger (16) is provided with the pipeline that several heat supply coal gas pass through.

6, small-sized internal combustion thermal power generation unit according to claim 1, it is characterized in that: the bottom of described washing filter (21) is a water, the intermediate portion is a coke.