CN202611928U

CN202611928U - Direct-injection liquefied-gas pressure reducer

Info

Publication number: CN202611928U
Application number: CN2012201976760U
Authority: CN
Inventors: 童言东
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-04
Filing date: 2012-05-04
Publication date: 2012-12-19
Anticipated expiration: 2022-05-04

Abstract

The utility model provides a direct-injection liquefied-gas pressure reducer, which comprises a water tank, wherein the water tank is respectively provided with a liquefied petroleum gas inlet, a water inlet and a water outlet, wherein a heat exchanging shell is arranged inside the water tank, a spiral-type decompression device is arranged inside the heat exchanging shell, one end of the spiral-type decompression device is connected with the liquefied petroleum-gas inlet on the water tank, the other end of the spiral-type decompression device is provided with an adjusting needle, the end with the adjusting needle is arranged inside a liquefied petroleum-gas output device, the liquefied petroleum-gas output device is provided with a liquefied petroleum-gas outlet, the other side of the liquefied petroleum-gas output device is provided with a vacuum pipe, a spring is arranged inside the vacuum pipe, an adjusting membrane is arranged between one end of the spring and the liquefied petroleum-gas output device, and the other end of the spring is provided with an adjusting screw. The direct-injection liquefied-gas pressure reducer is compact and reasonable in structure, large in heat exchanging are and strong in heat exchanging capacity, so that the engine is stable in working state, capable of adapting the temperature difference variation of the frigid zone and tropic zone and capable of meeting the requirement of a large-power engine on the basis of identical size.

Description

A kind of direct spray type liquid gas decompressor

Technical field

The utility model relates to the pressure regulating equipment field, is meant a kind of direct spray type liquid gas decompressor especially.

Background technique

Along with the continuous increase of automobile pollution, energy shortage and atmospheric pollution are serious day by day.A lot of in the world countries all in that seek can gasoline replacing and diesel oil, can reduce the fuel for use of automobile hazardous emission again.Liquefied gas as fuel claims that again green car fuel produces, and liquefied petroleum gas automobile has produced direct spray type liquid gas decompressor thus because its good emission performance and fuel economy are applied in many countries.Direct spray type liquid gas decompressor working principle is: LPG gets into mixed gas through decompression, evaporation back; During ato unit; LPG in the steel cylinder is transported to transducer through combination brake switch and proporting, liquefied petroleum air pipe and LPG solenoid valve under pressure, and LPG liquid, that have certain pressure is depressurized near the gaseous liquefied petroleum gas that flashes to normal pressure in transducer.Existing direct spray type liquid gas decompressor, its decompression heat exchanger assembly adopts aluminium alloy compression casting to process, and air cavity and water cavity are to be separated by abundant rubbery membrana dermalis, in case rubbery membrana dermalis is aging, seepage and operational failure very easily occur, in addition, also have following problem:

The difference variation that 1, can not adapt to the fever and chills band: winter unstable working condition, particularly cold zone in the winter time, steam output can further reduce when ultralow temperature made the work of direct spray type liquid gas decompressor; Can not fully accomplish heat exchange; Cause a little nonflammable liquid fuel to get into cylinder, cause igniting not smooth, particularly when quickening; A phenomenon even flame-out between motor has significantly causes engine behavior unstable;

2, the narrow limitation of engine displacement: because high power engine needs more gas supply, therefore needing enough vaporized fuel infeeds motor, makes the motor stable operation.Use direct spray type liquid gas decompressor if want to high power engine; Structure according to existing direct spray type liquid gas decompressor; Just must increase considerably the volume of direct spray type liquid gas decompressor; Relief chamber is increased on year-on-year basis, the liquid in the relief chamber transform could improve, once big heating (heat exchange) scope more effectively.So just caused overweight, the waste material of product.

The model utility content

The utility model proposes a kind of direct spray type liquid gas decompressor, has solved and has been prone to seepage and operational failure in the existing technology, can not adapt to the difference variation of fever and chills band and the problem that can not adapt to high power engine.

The technological scheme of the utility model is achieved in that

A kind of direct spray type liquid gas decompressor; Comprise tank, be respectively equipped with LPG inlet, water inlet and water outlet on the tank, be provided with the heat exchange housing in the tank; Be provided with spiral decompressor in the heat exchange housing; LPG inlet on spiral decompressor one end and the tank is connected, and the other end of spiral decompressor is provided with metering needle and this end is arranged in the LPG output unit, and the LPG output unit is provided with LPG and exports; LPG output unit opposite side is provided with vacuum tube; Be provided with spring in the vacuum tube, be provided with the adjusting epithelium between spring one end and the LPG output unit, the spring the other end is provided with the adjustment screw.

Preferably, water inlet and water outlet are threaded with tank.

Further, the heat exchange housing inboard and the outside are equipped with circular groove.

Further, be provided with gradual spiral chute outside the spiral decompressor.

Preferably, the LPG outlet is threaded with the LPG output unit.

Further, also be provided with safety valve on the LPG output unit.

Preferably, tank is connected with vacuum tube through bolt.

The beneficial effect of the utility model is:

1, tank and spiral decompressor comprehensive engagement can not form the dead angle, have increased the heat exchanging function of liquid gas decompression process greatly.

2, the heat exchange housing inboard and the outside are equipped with circular groove., and be provided with gradual spiral chute outside the spiral decompressor, and increased heat exchange area, further increased the heat exchanging function of liquid gas decompression process.

3, because the enhancing of heat exchanging function; Solved motor when quickening between, flame-out phenomenon, make engine behavior stable, can adapt to variation cold, the tropical temperature difference; Small product size is little simultaneously, on the basis of comparable size, can satisfy the requirement of high power engine.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the decomposition texture schematic representation of a kind of direct spray type liquid gas of the utility model decompressor.

Among the figure:

1, tank; 2, LPG inlet; 3, water inlet; 4, water outlet; 5, heat exchange housing; 6, spiral decompressor; 7, metering needle; 8, LPG output unit; 9, LPG outlet; 10, vacuum tube; 11, spring; 12, regulate epithelium; 13, adjustment screw; 14, circular groove; 15, spiral chute; 16, safety valve; 17, bolt.

Embodiment

To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

A kind of direct spray type liquid gas decompressor; Comprise tank 1, be respectively equipped with LPG inlet 2, water inlet 3 and water outlet 4 on the tank 1, be provided with heat exchange housing 5 in the tank 1; Be provided with spiral decompressor 6 in the heat exchange housing 5; LPG inlet 2 on spiral decompressor 6 one ends and the tank 1 is connected, and the other end of spiral decompressor 6 is provided with metering needle 7 and this end is arranged in the LPG output unit 8, and LPG output unit 8 is provided with LPG and exports 9; LPG output unit 8 opposite sides are provided with vacuum tube 10; Be provided with spring 11 in the vacuum tube 10, be provided with between spring 11 1 ends and the LPG output unit 8 and regulate epithelium 12, spring 11 the other ends are provided with adjustment screw 13.

Said water inlet 3 is threaded with tank 1 preferential the selection with water outlet 4; Can certainly select other Placement; As long as water inlet 3 can closely be connected with tank 1 with water outlet 4; Even water inlet 3, water outlet 4 and tank 1 can be structure as a whole, and the utility model does not limit this.

Heat exchange housing 5 inboards and the outside are equipped with circular groove 14, and its main function is to increase heat exchange area.

Said spiral decompressor 6 outsides are provided with spiral chute 15, and its main function also is to increase heat exchange area.

Said LPG outlet 9 is threaded with LPG output unit 8, can certainly select other Placement, can closely be connected with LPG output unit 8 as long as make LPG export 9, and the utility model does not limit this.

Also be provided with safety valve 16 on the said LPG output unit 8, to increase the Security of this direct spray type liquid gas decompressor.

Said tank 1 is connected with vacuum tube 10 through bolt 17, can certainly select other Placement, as long as tank 1 can closely be connected with vacuum tube 10, the utility model does not limit this.

The described a kind of direct spray type liquid gas decompressor of the utility model, its working principle is:

LPG gets into spiral decompressor 6 by the inlet of the LPG on the tank 12; Utilize the spiral chute 15 of spiral decompressor 6 that the flow direction of LPG is constantly changed; The LPG that break-in is simultaneously flowed ceaselessly at a high speed with inboard circular grooves 14 bumps of heat exchange housing 5, make LPG fast decompression in heat exchange housing 5.Simultaneously; The large-area continuous absorption of LPG of flowing comes from the heat of the circulating water of heat exchange housing 5; Finally make LPG in the place that arrives metering needle 7; Become gas (annotating :) by liquid because liquid liquefied petroleum gas can not be lighted for motor because temperature is very low.When engine rotation; Because the vacuum pressure numerical value in the cylinder constantly changes, the spring that makes reducer pressure regulate in the chamber is constantly flexible, drives the up-down vibration of epithelium; And epithelium is connected with confession metering needle 7; Make this metering needle 7 also constantly move up and down, make in the automatically controlled spray rail of gas liquefaction gas supply company sending and receiving motivation quantitatively regularly, reach the ejector principle same with gasoline.

The described a kind of direct spray type liquid gas decompressor of the utility model also has the following advantages:

1, heat exchange housing 5 inboards and the outside are equipped with circular groove 14, and its outside heat diffusion area is the several times of comparable size decompressor, and internal annular groove 14 not only has hot-swap feature; And according to experimental result; Inboard do not reach requirement,, run into and turn round and groove because liquid gas is a kind of lazy formula liquid with the effect of easing stress of the heat exchange housing 5 of circular groove 14; The capital is slowed down its flow velocity, so heat exchange housing 5 inboard circular grooves 14 also have effect of easing stress;

2, this direct spray type liquid gas decompressor is made up of four major parts (five main parts): tank 1, heat exchange housing 5, spiral decompressor 6, LPG output unit 8, vacuum tube 10.Except that top vacuum tube 10 with LPG output unit 8 is connected by 6 screws, remaining part is the screw thread screwing type and connects, the sealing between the parts adopts O type circle to compress mode, and each parts is relatively independent.That is to say that any one parts of this direct spray type liquid gas decompressor go wrong, and all can change separately.And the decompressor of other style all is to be integrated into integral body to major functions such as decompression, water cycle, air feed adjustings at present, and any one parts damages or function do not reach requirement, all will change whole decompressor.Therefore both time and labour saving of this direct spray type liquid gas decompressor, also economy operates with the market both parties and all can play very big optimum promoting effect.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. direct spray type liquid gas decompressor; Comprise tank (1); It is characterized in that, be respectively equipped with LPG inlet (2), water inlet (3) and water outlet (4) on the tank (1), be provided with heat exchange housing (5) in the tank (1); Be provided with spiral decompressor (6) in the heat exchange housing (5); LPG inlet (2) on spiral decompressor (6) one ends and the tank (1) is connected, and the other end of spiral decompressor (6) is provided with metering needle (7) and this end is arranged in the LPG output unit (8), and LPG output unit (8) is provided with LPG and exports (9); LPG output unit (8) opposite side is provided with vacuum tube (10); Be provided with spring (11) in the vacuum tube (10), be provided with between spring (11) one ends and the LPG output unit (8) and regulate epithelium (12), spring (11) the other end is provided with adjustment screw (13).

2. a kind of direct spray type liquid gas decompressor according to claim 1 is characterized in that water inlet (3) and water outlet (4) are threaded with tank (1).

3. a kind of direct spray type liquid gas decompressor according to claim 2 is characterized in that, heat exchange housing (5) inboard and the outside are equipped with circular groove (14).

4. a kind of direct spray type liquid gas decompressor according to claim 3 is characterized in that, spiral decompressor (6) outside is provided with gradual spiral chute (15).

5. a kind of direct spray type liquid gas decompressor according to claim 4 is characterized in that, LPG outlet (9) is threaded with LPG output unit (8).

6. a kind of direct spray type liquid gas decompressor according to claim 5 is characterized in that, also is provided with safety valve (16) on the LPG output unit (8).

7. a kind of direct spray type liquid gas decompressor according to claim 6 is characterized in that, tank (1) is connected with vacuum tube (10) through bolt (17).