CN201574803U - Anti-explosion diesel engine - Google Patents
Anti-explosion diesel engine Download PDFInfo
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- CN201574803U CN201574803U CN2009201040617U CN200920104061U CN201574803U CN 201574803 U CN201574803 U CN 201574803U CN 2009201040617 U CN2009201040617 U CN 2009201040617U CN 200920104061 U CN200920104061 U CN 200920104061U CN 201574803 U CN201574803 U CN 201574803U
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Abstract
The utility model relates to a diesel engine, in particular to an anti-explosion diesel engine which is applied to anti-explosion power plants of various underground fixing equipment and moving equipment in coal mines. The anti-explosion diesel engine solves the problems that no anti-explosion diesel engine is produced in China, the imported anti-explosion diesel engine has complicated structure, high price, long delivery cycle of parts, untimely service, high maintenance cost and the like. The anti-explosion diesel engine comprises a diesel engine body, and a cooling system, a fuel supply system, an exhausting system and an air inlet system which are connected with the diesel engine body, wherein a exhaust manifold and an exhaust pipe of the exhaust system are respectively provided with a water jacket; the outlet of the exhaust pipe is connected with a waste gas disposal tank; an air inlet pipeline of the air inlet system is provided with an air inlet fence. The anti-explosion diesel engine is also provided with an air starting and protecting system. The anti-explosion diesel engine solves the problems that easily-damaged parts of the imported diesel engine have difficult matching and maintenance and long maintenance period. The air starting and protecting system adopts a compressed air starter for starting, and has the advantages of safety and reliability and convenient maintenance when being used underground. The anti-explosion diesel engine exhausts waste gas more safely, and also effectively reduces the exhaust amount.
Description
Technical field
The utility model relates to diesel engine, is specially a kind of anti-explosion diesel engine, is used for the explosion-proof power plant of various fixing and mobile devices under the coal mine.
Background technique
Coal-mining technique advanced person's country abroad, trackless assistant conveyance technology is widely used.Some modernized large-scale mines of China and reorganization and expansion mine have also carried out positive practice and popularization in these areas in recent years, obtain effect preferably.Embody that the trackless assistant conveyance is high-effect, multipurpose, maneuverability, transport characteristics such as efficient height and advanced technology, for strong impetus is played in the development and the innovation of China's trackless assistant conveyance rubber-tired cart.
In modern large-scale colliery, the required material trend of underground equipment maximizes, its transportation is very difficult, not only time-consuming, but also effort, traditional resettlement mode uses that winch tractive, cucurbit promote, mine car is torn fortune etc. open always, and not only efficient is low, and poor stability, because coal cutting roadway is narrow, resettlement once often needs the very long cycle.China has introduced the auxiliary conveying equipments of some assembling mid power anti-explosion diesel engines, preferably resolve this problem, but these equipment mostly cost an arm and a leg, geological condition under the coal mine is had relatively high expectations, the import anti-explosion diesel engine is also owing to reasons such as untimely and maintenance expenses height are grown, served to complex structure, price height, component lead time, it is difficult that maintenance is difficult, fragile part is replaced, and often causes shut-down, and influence is produced.
The mid power anti-explosion diesel engine only has the minority manufacturer production abroad, mainly is the Ka Tebile company of the U.S..At present, China does not still have like product, along with the development of domestic rubber-tired cart industry, anti-explosion diesel engine demand growth and product is promoted fast, and import mid power anti-explosion diesel engine can not satisfy the needs of domestic rubber-tired cart development.
Summary of the invention
The utility model does not domesticly still have the anti-explosion diesel engine product in order to solve, and import anti-explosion diesel engine complex structure, price height, the component lead time is long, service is untimely and problems such as maintenance expenses height, and a kind of anti-explosion diesel engine is provided.
The utility model is to adopt following technological scheme to realize: anti-explosion diesel engine comprises that the diesel engine body reaches and the supporting cooling system that links to each other of diesel engine body, fuel oil supply system, vent systems, gas handling system;
Gas exhaust manifold in the vent systems and outlet pipe all are provided with water jacket, the water jacket of gas exhaust manifold has water supply connector and water output connector, the water jacket of outlet pipe has water supply connector and water output connector, the water output connector of gas exhaust manifold is communicated with the cylinder head water cover of diesel engine body, the water supply connector of gas exhaust manifold links to each other with the water output connector of outlet pipe, and the water supply connector of outlet pipe is communicated with the cylinder body water jacket of diesel engine body;
The outlet of outlet pipe is connected with the waste gas treatment case, the waste gas treatment case comprises the casing that has suction port and air outlet, be fixed with moisturizing ball float altitude valve on the wall box, moisturizing ball float altitude valve links to each other with water supply tank, water supply tank is through the moisturizing in the trend casing of moisturizing ball float altitude valve, be provided with in the casing by fixing with the suction port inboard and extending to the air outlet flue that the dividing plate below the water surface forms in the casing, on the air outlet of casing, be fixed with flame trap and exhaust pipe successively; Further, dividing plate is positioned at the suction port one lateral bending song of undersurface end to casing, simultaneously on the cabinet wall above the air outlet flue, be fixed with airtight plate, up exhaust is blocked the back by the airtight plate of top then is descending from water like this, need walk around airtight plate could discharge, this has just prolonged the holdup time of exhaust in casing, has increased cooling-down effect;
Be provided with the air inlet fence on the air inlet pipeline of gas handling system, the air inlet fence is made of body and the fence that the barrier board by arranging that is fixed in the body end forms.
Anti-explosion diesel engine described in the utility model also is provided with gas and starts and protective system.
The beneficial effects of the utility model: 1. the utility model is compared with background technique and is had tangible advance, makes the anti-explosion diesel engine of mid power that home-made model arranged, and has solved the supporting difficulty of import type fragile part, maintenance difficulty, long problem of cycle.2. gas of the present utility model starts with protective system employing compressed-air starter and starts, and uses in the down-hole to have safe and reliable, easy to maintenance advantage; Electricity Starting mode rate of fault height, and break down and do not allow the power-on serving operation in the down-hole.3. the utility model adopts water cleaning type waste gas treatment case, has effects such as flame arrest, cooling, washing and purification, makes that exhaust is safer, discharging also effectively reduces.4. the utility model protective system is monitored temperature, pressure and the water level of diesel engine simultaneously; And sensor cuts off air inlet and fuel oil when surpassing setting value simultaneously, guarantees the security of operation of diesel engine in the down-hole.
Description of drawings
Fig. 1 is the overall structure view of anti-explosion diesel engine described in the utility model;
Fig. 2 is the diesel engine cooling system structural drawing;
Fig. 3 is for starting and protective system catenation principle figure;
Fig. 4 is the gas exhaust manifold plan view;
Fig. 5 is the gas exhaust manifold cut-away view;
Fig. 6 is exhaust pipe structure figure;
Fig. 7 is waste gas treatment box structure figure;
Fig. 8 is a waste gas treatment case rear view;
Fig. 9 cuts open figure for bowing of waste gas treatment case;
Figure 10 is the A-A sectional drawing of Fig. 9;
Figure 11 is the choke gear plan view;
Figure 12 is the choke gear plan view;
Figure 13 is the structural drawing of air inlet fence;
Figure 14 is the partial enlarged drawing of Figure 13;
Among the figure: 1, the diesel engine body, 12, radiator, 13, expansion tank, 14, gas exhaust manifold, 15, outlet pipe, 16, joint, 17, joint, 18, water supply tank, 19, the waste gas treatment case, 20, air-strainer, 21, choke gear, 22, the air inlet fence, 23, the diesel engine cooling-water temperature sensor, 24, oil pressure sensor, 25, surface temperature sensor, 26, exhaust gas temperature sensor, 27, waste gas treatment case level sensor, 28, the fuel oil control cylinder, 30, air compressor, 31, one-way valve, 32, gas holder, 33, first ball valve, 34, stir valve, 35, barometer, 36, gas-charging connection, 37, the overload button, 38, one-way throttle valve, 39, start button, 40, the gas motor, 41, control valve, 42, oil sprayer, 43, shuttle valve, 44, first single Pneumatic valve, 45, second single Pneumatic valve, 46, safety valve, 47, filter, 48, second ball valve, 49, fuel level indicator, 50, the 3rd single Pneumatic valve, 51, filter, 52, air inlet seat, 54, baffle plate, 55, intake elbow, 56, rotating shaft, 60, the air door cylinder, 61, bearing, 62, driving lever, 63, connecting rod, 64, shell, 66, first gas exhaust manifold, 68, second gas exhaust manifold, 70, water output connector, 71, suction port, 72, water supply connector, 73, water output connector, 77, the double-level-metal bellows, 80, water supply connector, 82, exhaust pipe, 83, flame trap, 84, the air outlet, 85, casing, 87, airtight plate, 88, dividing plate, 89, air outlet flue, 90, suction port, 92, moisturizing ball float altitude valve.
Embodiment
Anti-explosion diesel engine comprises that diesel engine body 1 reaches and the supporting cooling system that links to each other of diesel engine body, fuel oil supply system, vent systems, gas handling system;
The outlet of outlet pipe 15 is connected with waste gas treatment case 19, waste gas treatment case 19 comprises the casing 85 that has suction port 90 and air outlet 84, be fixed with moisturizing ball float altitude valve 92 on casing 85 sidewalls, moisturizing ball float altitude valve 92 links to each other with water supply tank 18, water supply tank 18 is through 92 moisturizings in trend casing 85 of moisturizing ball float altitude valve, be provided with in the casing 85 by inboard fixing and extend to the air outlet flue 89 that the dividing plate below the water surface 88 forms in the casing, on the air outlet 84 of casing 85, be fixed with flame trap 83 (structure of this flame trap is the same with air inlet fence in the gas handling system) and exhaust pipe 82 successively with suction port 90; Further, dividing plate 88 is positioned at the suction port 90 one lateral bending songs of undersurface end to casing 85, on the cabinet wall above the air outlet flue 89, be fixed with simultaneously airtight plate 87, up exhaust is blocked the back by the airtight plate of top then is descending from water like this, need walk around airtight plate could discharge, this has just prolonged the holdup time of exhaust in casing, has increased cooling-down effect;
Be provided with air inlet fence 22 on the air inlet pipeline of gas handling system, the air inlet fence is made of body and the fence that the barrier board by arranging that is fixed in the body end forms.During concrete the manufacturing, should guarantee that barrier board thickness is not less than 1mm, planeness is not more than 0.15mm, and the airflow direction width is not less than 50mm, satisfying the smoothness for guaranteeing to ventilate under the back-fire relief requirement situation, the gap between adjacent two barrier boards should be between 0.45mm～0.5mm.
The working procedure of this anti-explosion diesel engine is: ozone flows by entering behind air-strainer 20, the air inlet fence 22 in the diesel engine body 1 that meets requirement of explosion proof, be used for power output with diesel oil mixed combustion produce power, waste gas after burning realizes cooling, washing and flame arrest processing by gas exhaust manifold 14, outlet pipe 15 and waste gas treatment case 19, is discharged in the atmosphere at last.The air inlet fence 22 of gas handling system has the back-fire relief function, can prevent that diesel engine body 1 issuable flame or Mars from propagating to the external world by gas handling system, belongs to the explosion-proof parts that satisfy diesel engine service condition under the explosive gas atmosphere.Diesel engine cooling system is that enclosed is forced the water cycle cooling, adds inject cooling liquid from expansion tank 13, and cooling liquid is full of the jacket space of cylinder body and cylinder cap, gas exhaust manifold 14 and the outlet pipe 15 of radiator 12, diesel engine body 1.The radiator 12 that adopts cooling capacity to strengthen also cools off gas exhaust manifold 14 and outlet pipe 15 in cooling diesel engine body 1.Make the surface temperature of diesel engine body 1, gas exhaust manifold 14 and outlet pipe 15 all in the scope that mine anti-explosion requires, promptly be not more than 150 ℃.The working procedure of vent systems is: the high-temp waste gas after 1 burning of diesel engine body enters waste gas treatment case 19 by gas exhaust manifold 14 and outlet pipe 15, through the cooling of waste gas treatment case 19, flame arrest and and carrying out washing treatment after, be discharged in the atmosphere by exhaust pipe 82.The working principle of waste gas treatment case 19 is: waste gas treatment case 19 usefulness cooling waters cover by water supply tank 18, the water that moisturizing ball float altitude valve 92 is used to control in the waste gas treatment case arrives setting height, when water level is lower than designated water level, automatically from water supply tank 18 moisturizings; Exhaust enters the air outlet flue of being separated by dividing plate 88 89 by suction port 90, be imported in the water lower the temperature, washing and flame arrest handle; Up exhaust is blocked the back by the airtight plate 87 of top then is descending from water, need walk around airtight plate 87 and could discharge, and this has just prolonged the holdup time of exhaust in casing 85, has increased cooling-down effect.Gas then by entering in the atmosphere behind flame trap 83 backs and the exhaust pipe 82, has reduced temperature, the noise of exhaust in the whole process, eliminated flame, makes anti-explosion diesel engine safe and environmentally friendly in the use in mine.
Described gas exhaust manifold 14 comprises the shell 64 and first gas exhaust manifold 66, second gas exhaust manifold 68, first gas exhaust manifold 66 and second gas exhaust manifold 68 are the blind pipe of end sealing, first gas exhaust manifold 66 and second gas exhaust manifold 68 be placed side by side in the shell 64 and the non-closed end that makes first gas exhaust manifold 66 and second gas exhaust manifold 68 and shell 64 between be tightly connected (just forming water jacket between such shell and first gas exhaust manifold 66 and second gas exhaust manifold 68), have on the sidewall of first gas exhaust manifold 66 and second gas exhaust manifold 68 and stretch out and seal the suction port 71 that passes shell 64 (first gas exhaust manifold 66 is consistent with the cylinder number of diesel engine with suction port sum on second gas exhaust manifold 68).Gas exhaust manifold on the more non-anti-explosion diesel engine except that setting up water jacket, also becomes side by side two gas exhaust manifolds by single gas exhaust manifold, can realize the cooling of gas exhaust manifold so more fully.The working principle of gas exhaust manifold 14 is: downtake pipe 66, second exhaust pipe 68 and 64 on shell are formed relative enclosed space---water jacket.The exhaust of diesel engine enters downtake pipe 66 and second exhaust pipe 68 by suction port 71; Cooling water enters cooling jacket by water supply connector 72, enters diesel engine by water output connector 70 then, and exhaust is cooled off, and makes the surface temperature of shell 64 be satisfied with the requirement of explosion proof under the coal mine.
The stage casing of outlet pipe 15 is connected with double-level-metal bellows 77, effectively alleviates stress and distortion between diesel engine body 1 and the waste gas treatment case 19, has guaranteed the safe operation of outlet pipe 15.Metal bellows 77 should guarantee certain amount of deflection, again certain toughness need be arranged.Double-ply bellows 77 internal layers inboard is an air outlet flue, and two-layer support is a cooling water channel, with the stress and the relative displacement that produce owing to vibration between balance diesel engine body 1 run duration and the waste gas treatment case 19, helps to prolong the working life of outlet pipe 15 here.
The start-up system of non-anti-explosion diesel engine is an electric starting system, and the present q﹠r of explosion-proof electric starting system is also undesirable.For guaranteeing the explosion-proof performance of anti-explosion diesel engine, anti-explosion diesel engine described in the utility model is provided with that gas starts and protective system, and gas starts with protective system and comprises the diesel engine cooling-water temperature sensor 23 that sealing and fixing covers and contacts with water in the cylinder cap water jacket in the diesel engine body cylinder, be fixed on the oil pressure sensor 24 (being actually single Pneumatic valve of a two-position three way) on the diesel engine body main oil gallery, be fixed on the surface temperature sensor 25 that the diesel engine body cylinder covers, be fixed on the exhaust gas temperature sensor 26 on the exhaust pipe 82 of waste gas treatment box body, be fixed on the waste gas treatment case level sensor 27 (being actually a post rod type machine control valve) on the waste gas treatment box body, be connected the fuel oil control cylinder 28 that (how to connect is well known to a person skilled in the art) is useful on the fuel delivery of control high pressure oil pump with the high pressure oil pump of diesel engine body, the choke gear 21 that links to each other with the diesel engine body air inlet mouth of pipe, the air compressor 30 of diesel engine body 1, one-way valve 31, gas holder 32, first ball valve 33, stir valve 34, barometer 35, gas-charging connection 36, overload button 37, one-way throttle valve 38, start button 39, gas motor 40, control valve 41, oil sprayer 42, shuttle valve 43, first single Pneumatic valve 44, second single Pneumatic valve 45, safety valve 46, filter 47, second ball valve 48, fuel level indicator 49, the 3rd single Pneumatic valve 50 and filter 51; Wherein, the choke gear 21 that links to each other with the diesel engine body air inlet mouth of pipe comprises the inlet body that is formed by connecting by air inlet seat 52 and intake elbow 55, air door cylinder 60, intake elbow 55 upper supports have and end sealing vertical with intake elbow 55 to pass the rotating shaft 56 of intake elbow 55, the baffle plate 54 that is fixed in the rotating shaft 56 is arranged in the intake elbow 55, one end of the axle head of rotating shaft 56 and connecting rod 63 is fixed, the other end of connecting rod 63 is fixed with driving lever 62, the end of driving lever 62 is with bearing 61, one end of air door cylinder 60 and the outer wall of air inlet seat 52 are hinged, and the piston rod of air door cylinder 60 the other ends is fixed with the outer ring that is placed in the bearing 61 on the driving lever 62; Gas starts the annexation following (as shown in Figure 3) with protective system: air outlet first ball valve 33 of gas holder 32 is divided into two gas circuits, first gas circuit by filter 51, barometer 35, stir valve 34, overload button 37, second single Pneumatic valve 45, one-way throttle valve 38 and be formed by connecting, first gas circuit is communicated with air door cylinder 60 in fuel oil control cylinder 28, the choke gear respectively, and first gas circuit also is communicated with the gas access of diesel engine cooling-water temperature sensor 23, surface temperature sensor 25, exhaust gas temperature sensor 26, waste gas treatment case level sensor 27 respectively simultaneously; Second gas circuit is communicated with gas motor 40 through oil sprayer 42, control valve 41; First gas circuit is told a bypass that is connected by the 3rd single Pneumatic valve 50, start button 39 in the outlet side of second single Pneumatic valve 45, this bypass is communicated with the control inlet of gas motor 40, and the control outlet of gas motor 40 is communicated with the control mouth of control valve 41; First gas circuit is told two bypasses in the outlet side of stirring valve 34, a bypass links to each other with the inlet end of oil pressure sensor 24, another bypass is communicated with the control end of second single Pneumatic valve 45 through first single Pneumatic valve 44, the control end of oil pressure sensor 24 is communicated with the oil delivery pipe of diesel engine body through fuel level indicator 49, the outlet side of oil pressure sensor 24 is communicated with the control end of the 3rd single Pneumatic valve 50, simultaneously through shuttle valve 43 be communicated with the control end of first single Pneumatic valve 44, also another inlet end with second single Pneumatic valve 45 is communicated with; A suction port of gas holder 32 is communicated with the air compressor 30 of diesel engine body through safety valve 46, one-way valve 31, and another suction port of gas holder 32 connects second ball valve 48, filter 47 and gas-charging connection 36 successively; The air compressor 30 of diesel engine body also is communicated with the outlet side of filter 51 in first gas circuit.
Diesel engine cooling-water temperature sensor 23, oil pressure sensor 24, surface temperature sensor 25, exhaust gas temperature sensor 26, waste gas treatment case level sensor 27 are the known products that can buy.Described as can be seen diesel engine cooling-water temperature sensor 23, surface temperature sensor 25, exhaust gas temperature sensor 26 are actually and have gas circuit and open and close actuator, but related domain is accustomed to still claiming that they are sensor.During concrete enforcement, diesel engine cooling-water temperature sensor 23 can be selected the H-195 model for use, and surface temperature sensor 25 can be selected the H-255 model for use, and exhaust gas temperature sensor 26 can be selected the H-160 model for use.Oil pressure sensor 24 is actually single Pneumatic valve of a two-position three way, and waste gas treatment case level sensor 27 is actually a post rod type machine control valve, also claims traditionally that by function both are sensor, and they also are existing known products.Gas start with protective system in other parts of adopting comprise various valves, connect button etc. also be existing known products.Choke gear 21 belongs to the power unit of protective gear; the unlatching of normal condition lower wind door (open under the drive of rotating shaft 56 by baffle plate 54; make the inlet body unimpeded); if occur abnormal conditions then air door close that (baffle plate 54 is closed under the drive of rotating shaft 56; make the inlet body blocking-up), make diesel engine shut down because of no air inlet.
Gas starts and the gas startup working procedure of protective system is: open ball valve 33; stir valve 34 to the position of opening; observe barometer 35 and show whether the air pressure in the gas holder 32 reaches more than the 0.7Mpa; if less than 0.7Mpa; then need extraneous inflation; (method of inflation is that vehicle or an air compressor of looking for a gas to start are inflated by gas-charging connection 36 systems) presses overload button 37 communicates gas circuit 1 and gas circuit 2; make pressurized air pass through that one-way throttle valve 38 at first drives air door cylinder 60 and fuel oil control cylinder 28 (opens choke gear; the high pressure oil pump fuel feeding); then press start button 39 (must wait air door cylinder 60 and fuel oil control cylinder 28 to open just and can press start button 39); pressurized air is through the 3rd single Pneumatic valve 50; start button 39 enters the control inlet of gas motor 40, makes the flywheel ring gear of gas motor and diesel engine body 1 enter engagement.Subsequently, the control air-flow that exports out from the control of gas motor 40 enters the control mouth of the control valve 41 of gas motor, make this valve move to down the valve position state, the high-pressure high-flow pressurized air of sending here from major loop atomizes after control valve 41 flows to gas motor 40 through oil sprayer 42 like this, and make it high speed rotating, thereby start diesel engine.After the startup, unclamp start button 39 at once, the engine oil pressure for the treatment of diesel engine reaches more than the 0.2Mpa, open oil pressure sensor 24 by oil pressure, make gas circuit 1 communicate with gas circuit 4, promote the 3rd single Pneumatic valve 50 and disconnect gas circuit 2 and gas circuit 3, simultaneously gas circuit 4 by shuttle valve 43, first single Pneumatic valve 44 is opened, make gas circuit 1 communicate with gas circuit 5, gas circuit 5 is opened single Pneumatic valve 45 to make gas circuit 4 communicate with gas circuit 2, make pressurized air continue to open air door cylinder 60 and fuel oil control cylinder 28 through transposition, just can unclamp overload button 37 this moment.Start back diesel engine body 1 pressure gas source that air compressor 30 is inflated in gas holder 32 and provided by one-way valve 31 voluntarily to be needed in the diesel engine running is provided.
Protective system working procedure and principle that gas starts with protective system are: when the Operational Limits of diesel engine body 1 surpasses the specified value of diesel engine cooling-water temperature sensor 23, oil pressure sensor 24, surface temperature sensor 25, exhaust gas temperature sensor 26, waste gas treatment case level sensor 27, the outlet valve of respective sensor opens; make the gas in the gas circuit 6 (first gas circuit) discharge to the external world; pressure in the gas circuit reduces, and makes fuel oil control cylinder 28 and fuel oil is cut off in 60 actions of air door cylinder simultaneously and air inlet makes diesel engine body 1 autostop.
Below in conjunction with accompanying drawing the utility model is described further:
Shown in Figure 1, be overall structure figure, this anti-explosion diesel engine is made up of diesel engine body 1 and match equipment, gas startup and protective system, the vent systems with explosion prevention function and gas handling system, to adapt to the special operation environment under the coal mine.
The gas exhaust manifold 14 and the outlet pipe 15 of vent systems all have water jacket, to satisfy under the coal mine requirement to surface temperature; Waste gas treatment case 19 is a wet processed, in order to cooling, flame arrest and washing.That gas exhaust manifold 14, outlet pipe 15 and waste gas treatment case all should adopt is high temperature resistant, the material of wearing and tearing and corrosion is welded, and because of exhaust has about 500 ℃ when diesel engine body 1 is discharged, the gas componant in the exhaust is corrosive.
Shown in Figure 13,14, gas handling system and vent systems all have flame trap, are used to the propagation to the external world that prevents that diesel engine body 1 flame of combustion is possible.That flame trap is also used is high temperature resistant, the material of wearing and tearing and corrosion is made, during for the barrier board structure, should guarantee that barrier board thickness is not less than 1mm, planeness is not more than 0.15mm, the airflow direction width is not less than 50mm, satisfying the smoothness for guaranteeing to ventilate under the back-fire relief requirement situation, the gap between adjacent two barrier boards should be between 0.45mm～0.5mm.Be easy to assembling, check and cleaning.
Shown in Figure 2, be the topology view of diesel engine cooling system, require on the basis in the cooling of satisfying diesel engine body 1, forced circulation system has added gas exhaust manifold 14 and outlet pipe 15, so that the surface temperature of the two meets the specific (special) requirements under the coal mine.
Shown in Figure 3, be to start and protective system principle view, by to the monitoring of the main Operational Limits of anti-explosion diesel engine with the protection when exceeding setting value, guarantee that anti-explosion diesel engine is safe at run duration, if the function of in time shutting down when influential factor of safety occurs.Whole pneumatic air pressure mechanism connects with whole each control mechanism, and each gas circuit pipeline is unimpeded, and operation is normal, and the gas circuit pipe can be with superpower plastic material making.
Fig. 4 shown in 5 and 6, is the topology view of intake manifold 14 and outlet pipe 15, has all adopted double layer construction to add cooling water channel at air outlet flue, and the hull-skin temperature of control intake manifold 14 and outlet pipe 15 is in 150 ℃ scope; The double-level-metal bellows has been adopted in the interruption of outlet pipe 15, effectively alleviates stress and distortion between diesel engine body 1 and the waste gas treatment case 19, has guaranteed the safe operation of outlet pipe 15.Metal bellows should guarantee certain amount of deflection, again certain toughness need be arranged.
Shown in Fig. 7,8,9,10, be waste gas treatment box structure view, separate exhaust, make it in water, fully to cool off, wash by dividing plate; Prolong the holdup time of exhaust in casing 85 by airtight plate 87, obtained better cooling-down effect; Altitude valve 92 has been realized the automatic control of water level in the waste gas treatment case 19, water level is controlled at satisfies exhaust cooling, washing specific (special) requirements and the exhaust back pressure that reduces to produce the most rational degree between the two by water, even delivery temperature, also reduces exhaust back pressure less than 70 ℃ in 10KPa.
Figure 11 shown in 12, is the choke gear topology view, cuts off air inlet or fuel oil and all can make the diesel engine main frame out of service, cuts off the two simultaneously and then can guarantee the validity of cut-out in time.Fuel oil control cylinder 28 and air door cylinder 60 should be working properly, flexible movements.
Claims (9)
1. an anti-explosion diesel engine comprises that diesel engine body (1) reaches and the supporting cooling system that links to each other of diesel engine body, fuel oil supply system, vent systems, gas handling system; It is characterized by:
Gas exhaust manifold in the vent systems (14) and outlet pipe (15) all are provided with water jacket, the water jacket of gas exhaust manifold (14) has water supply connector (72) and water output connector (70), the water jacket of outlet pipe (15) has water supply connector (80) and water output connector (73), the water output connector (70) of gas exhaust manifold (14) is communicated with the cylinder head water of diesel engine body cover, the water supply connector (72) of gas exhaust manifold (14) links to each other with the water output connector (73) of outlet pipe (15), and the water supply connector (80) of outlet pipe (15) is communicated with the cylinder body water jacket of diesel engine body;
The outlet of outlet pipe (15) is connected with waste gas treatment case (19), waste gas treatment case (19) comprises the casing (85) that has suction port (90) and air outlet (84), be fixed with moisturizing ball float altitude valve (92) on casing (85) sidewall, moisturizing ball float altitude valve (92) links to each other with water supply tank (18), water supply tank (18) is through moisturizing ball float altitude valve (92) moisturizing in trend casing (85), be provided with in the casing (85) by fixing with suction port (90) inboard and extending to the air outlet flue (89) that the dividing plate (88) below the water surface forms in the casing, on the air outlet (84) of casing (85), be fixed with flame trap (83) and exhaust pipe (82) successively;
Be provided with air inlet fence (22) on the air inlet pipeline of gas handling system, the air inlet fence is made of body and the fence that the barrier board by arranging that is fixed in the body end forms.
2. anti-explosion diesel engine as claimed in claim 1, it is characterized by: be provided with also that gas starts and protective system, gas starts with protective system and comprises the diesel engine cooling-water temperature sensor (23) that sealing and fixing covers and contacts with water in the cylinder cap water jacket in the diesel engine body cylinder, be fixed on the oil pressure sensor (24) on the diesel engine body main oil gallery, be fixed on the surface temperature sensor (25) that the diesel engine body cylinder covers, be fixed on the exhaust gas temperature sensor (26) on the exhaust pipe (82) of waste gas treatment box body, be fixed on the waste gas treatment case level sensor (27) on the waste gas treatment box body, be connected with the fuel oil control cylinder (28) that is used to control the high pressure oil pump fuel delivery with the high pressure oil pump of diesel engine body, the choke gear (21) that links to each other with the diesel engine body air inlet mouth of pipe, the air compressor (30) of diesel engine body (1), one-way valve (31), gas holder (32), first ball valve (33), stir valve (34), barometer (35), gas-charging connection (36), overload button (37), one-way throttle valve (38), start button (39), gas motor (40), control valve (41), oil sprayer (42), shuttle valve (43), first single Pneumatic valve (44), second single Pneumatic valve (45), safety valve (46), filter (47), second ball valve (48), fuel level indicator (49), the 3rd single Pneumatic valve (50) and filter (51); Wherein, the choke gear (21) that links to each other with the diesel engine body air inlet mouth of pipe comprises the inlet body that is formed by connecting by air inlet seat (52) and intake elbow (55), air door cylinder (60), intake elbow (55) upper support has vertical with intake elbow (55) and an end seals the rotating shaft (56) that passes intake elbow (55), the baffle plate (54) that is fixed in the rotating shaft (56) is arranged in the intake elbow (55), one end of the axle head of rotating shaft (56) and connecting rod (63) is fixed, the other end of connecting rod (63) is fixed with driving lever (62), the end of driving lever (62) is with bearing (61), the outer wall of one end of air door cylinder (60) and air inlet seat (52) is hinged, and the piston rod of air door cylinder (60) the other end is fixed with the outer ring that is placed in the bearing (61) on the driving lever (62); Gas starts with the annexation of protective system as follows: air outlet first ball valve (33) of gas holder (32) is divided into two gas circuits, first gas circuit is by filter (51), barometer (35), stir valve (34), overload button (37), second single Pneumatic valve (45), one-way throttle valve (38) is formed by connecting, first gas circuit respectively with fuel oil control cylinder (28), air door cylinder (60) in the choke gear is communicated with, simultaneously first gas circuit also respectively with diesel engine cooling-water temperature sensor (23), surface temperature sensor (25), exhaust gas temperature sensor (26), the gas access of waste gas treatment case level sensor (27) is communicated with; Second gas circuit is communicated with gas motor (40) through oil sprayer (42), control valve (41); First gas circuit is told a bypass that is connected by the 3rd single Pneumatic valve (50), start button (39) in the outlet side of second single Pneumatic valve (45), this bypass is communicated with the control inlet of gas motor (40), and the control outlet of gas motor (40) is communicated with the control mouth of control valve (41); First gas circuit is told two bypasses in the outlet side of stirring valve (34), a bypass links to each other with the inlet end of oil pressure sensor (24), another bypass is communicated with the control end of second single Pneumatic valve (45) through first single Pneumatic valve (44), the control end of oil pressure sensor (24) is communicated with the oil delivery pipe of diesel engine body through fuel level indicator (49), and the outlet side of oil pressure sensor (24) is communicated with the control end of the 3rd single Pneumatic valve (50), be communicated with through the control end of shuttle valve (43) simultaneously with first single Pneumatic valve (44), also another inlet end with second single Pneumatic valve (45) is communicated with; A suction port of gas holder (32) is communicated with the air compressor (30) of diesel engine body through safety valve (46), one-way valve (31), and another suction port of gas holder (32) connects second ball valve (48), filter (47) and gas-charging connection (36) successively; The air compressor of diesel engine body (30) also is communicated with the outlet side of filter (51) in first gas circuit.
3. anti-explosion diesel engine as claimed in claim 1 or 2, it is characterized by: the dividing plate (88) of waste gas treatment case (19) is positioned at suction port (90) the one lateral bending songs of undersurface end to casing (85), is fixed with airtight plate (87) simultaneously on the cabinet wall of air outlet flue (89) top.
4. anti-explosion diesel engine as claimed in claim 1 or 2, it is characterized by: the barrier board thickness of air inlet fence is not less than 1mm, planeness is not more than 0.15mm, and the airflow direction width is not less than 50mm, and the gap between adjacent two barrier boards should be between 0.45mm～0.5mm.
5. anti-explosion diesel engine as claimed in claim 1 or 2, it is characterized by: gas exhaust manifold (14) comprises shell (64) and first gas exhaust manifold (66), second gas exhaust manifold (68), first gas exhaust manifold (66) and second gas exhaust manifold (68) are the blind pipe of end sealing, first gas exhaust manifold (66) and second gas exhaust manifold (68) be placed side by side in the shell (64) and make the non-closed end of first gas exhaust manifold (66) and second gas exhaust manifold (68) and shell (64) between be tightly connected, have on the sidewall of first gas exhaust manifold (66) and second gas exhaust manifold (68) and stretch out and seal the suction port (71) that passes shell (64).
6. anti-explosion diesel engine as claimed in claim 3, it is characterized by: gas exhaust manifold (14) comprises shell (64) and first gas exhaust manifold (66), second gas exhaust manifold (68), first gas exhaust manifold (66) and second gas exhaust manifold (68) are the blind pipe of end sealing, first gas exhaust manifold (66) and second gas exhaust manifold (68) be placed side by side in the shell (64) and make the non-closed end of first gas exhaust manifold (66) and second gas exhaust manifold (68) and shell (64) between be tightly connected, have on the sidewall of first gas exhaust manifold (66) and second gas exhaust manifold (68) and stretch out and seal the suction port (71) that passes shell (64).
7. anti-explosion diesel engine as claimed in claim 1 or 2 is characterized by: the stage casing of outlet pipe (15) is connected with double-level-metal bellows (77).
8. anti-explosion diesel engine as claimed in claim 3 is characterized by: the stage casing of outlet pipe (15) is connected with double-level-metal bellows (77).
9. anti-explosion diesel engine as claimed in claim 5 is characterized by: the stage casing of outlet pipe (15) is connected with double-level-metal bellows (77).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201040617U CN201574803U (en) | 2009-08-01 | 2009-08-01 | Anti-explosion diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201040617U CN201574803U (en) | 2009-08-01 | 2009-08-01 | Anti-explosion diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN201574803U true CN201574803U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201040617U Expired - Lifetime CN201574803U (en) | 2009-08-01 | 2009-08-01 | Anti-explosion diesel engine |
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| Country | Link |
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| CN (1) | CN201574803U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367768A (en) * | 2011-10-25 | 2012-03-07 | 三一重型综采成套装备有限公司 | Electric-spraying explosion-proof diesel machine |
| CN104500291B (en) * | 2014-11-26 | 2017-01-25 | 中国煤炭科工集团太原研究院有限公司 | Novel integrated water-cooling air intake and exhaust device |
| CN108999678A (en) * | 2018-06-12 | 2018-12-14 | 中国煤炭科工集团太原研究院有限公司 | A kind of combined type anti-explosion diesel engine emission-control equipment |
| CN109184885A (en) * | 2018-08-01 | 2019-01-11 | 襄阳晟欣机电有限公司 | Diesel engine cooling system |
| CN110101991A (en) * | 2019-04-03 | 2019-08-09 | 中国煤炭科工集团太原研究院有限公司 | A kind of vehicle-mounted self-spray water fire-extinguishing system of coal mine |
-
2009
- 2009-08-01 CN CN2009201040617U patent/CN201574803U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367768A (en) * | 2011-10-25 | 2012-03-07 | 三一重型综采成套装备有限公司 | Electric-spraying explosion-proof diesel machine |
| CN104500291B (en) * | 2014-11-26 | 2017-01-25 | 中国煤炭科工集团太原研究院有限公司 | Novel integrated water-cooling air intake and exhaust device |
| CN108999678A (en) * | 2018-06-12 | 2018-12-14 | 中国煤炭科工集团太原研究院有限公司 | A kind of combined type anti-explosion diesel engine emission-control equipment |
| CN109184885A (en) * | 2018-08-01 | 2019-01-11 | 襄阳晟欣机电有限公司 | Diesel engine cooling system |
| CN110101991A (en) * | 2019-04-03 | 2019-08-09 | 中国煤炭科工集团太原研究院有限公司 | A kind of vehicle-mounted self-spray water fire-extinguishing system of coal mine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20090801 |