CN205349556U

CN205349556U - Gas spraying rail with prevent gradually freezing function

Info

Publication number: CN205349556U
Application number: CN201620090652.3U
Authority: CN
Inventors: 谢成忠
Original assignee: CHENGDU DUJIA ELECTRICAL Co Ltd
Current assignee: CHENGDU DUJIA ELECTRICAL Co Ltd
Priority date: 2016-01-29
Filing date: 2016-01-29
Publication date: 2016-06-29
Anticipated expiration: 2026-01-29

Abstract

The utility model discloses a gas spraying rail with prevent gradually freezing function, including the intake pipe, the hollow tube, it has a plurality of jet orifices to open on the hollow tube, it installs the solenoid valve to correspond on the jet orifice, open flutedly at the hollow tube inner wall, the jet orifice is just to the recess, be provided with a plurality of electrothermal tubes side by side in the recess, the guide block is installed to the electrothermal tube bottom, it has the guide way with guide block matched with to open bottom the recess, the electrothermal tube includes the body, fill the insulating material inside the body and arrange the inside heating wire of body in, the heating wire end -to -end connection has the terminal, the recess is kept away from the one end of intake pipe and is opened the aperture that has with external intercommunication, the terminal runs through the aperture to be connected with the wiring picture peg, it has the heat -conducting plate to serve to cover in the opening of recess. Guide block, guide block and guide way cooperation are installed to the body lower part of electrothermal tube for laying of body is more stable, need not increase new fixed knot promptly and construct the fastening that just can realize the electrothermal tube, reaches and optimizes the purpose of spouting rail inner structure.

Description

A kind of have the anti-gas injection rail gradually freezing function

Technical field

This utility model relates to gas injection rail, specifically refers to a kind of gas injection rail having and preventing gradually freezing function.

Background technology

Gas injection rail is necessaries on CNG-gasoline double-fuel car, but when temperature is relatively low, low temperature makes the contraction of gas in low pressure line, forms negative pressure, make gas injection rail open not easily between combustion gas common rail and filter, affects the normal use of gas burning system；Gas injection rail is heated by the mode being adopted hydro-thermal by us so that it is can normal operation, however it is necessary that installation water route, increase pipeline and interfere, it is easy to fluid leakage occurs, increase maintenance difficulties.

Utility model content

The purpose of this utility model is in that providing a kind of has the anti-gas injection rail gradually freezing function, it is ensured that combustion gas normal through, avoid fuel gas pipeline occurs liquid simultaneously.

The purpose of this utility model is achieved through the following technical solutions:

A kind of have the anti-gas injection rail gradually freezing function, including air inlet pipe and hollow pipe in communication, multiple spray-hole is had in hollow pipe upper end, and correspondence is provided with electromagnetic valve on described spray-hole, groove is had at described hollow pipe inwall, and described spray-hole is just to described groove, multiple electrothermal tube it has been arranged side by side in described groove, guide pad is installed bottom electrothermal tube, and the gathering sill matched with guide pad is had at bottom portion of groove, described electrothermal tube includes body, it is filled in the insulant of tubular body and is placed in the heating wire of tubular body, described heating wire end is connected to binding post, groove has, away from one end of air inlet pipe, the aperture being in communication with the outside, binding post runs through aperture and is connected with wiring plate, and on the open end of groove, it is coated with heat-conducting plate, described inside grooves and hollow tube are separated by heat-conducting plate.

During utility model works, combustion gas is injected directly in hollow pipe by air inlet pipe, and is flowed into after in electromagnetic valve by spray-hole, accurately regulating and then guaranteeing that combustion gas is maintained at the flow output of the best through electromagnetic valve；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, the inwall place of spray-hole is just had groove at hollow pipe by this utility model, it is heated heating up by the gas circulation region in hollow pipe, utilize the caloric value of electrothermal tube and the heat transmission of heat-conducting plate, make combustion gas in the ambient temperature entered before hollow pipe in hollow pipe relative to extraneous temperature drift, namely the pressure in hollow pipe raises, combustion gas heated intensification to a certain extent after hollow pipe is entered until combustion gas, effectively prevent the flow velocity producing negative pressure between spray rail and filter and affect combustion gas, ensure the normal circulation of combustion gas.And, adopt Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in groove, by wiring plate, the side of groove is sealed, heat loss can be reduced, being also convenient for picking and placeing electrothermal tube, namely user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost simultaneously；The body bottom of electrothermal tube is provided with guide pad simultaneously, and guide pad coordinates with gathering sill so that laying of body is more stable, namely need not increase new fixed structure and just be capable of the fastening of electrothermal tube, reaches to optimize the purpose of spray rail internal structure.

Between multiple described electrothermal tubes parallel with one another.In the lasting use procedure of electrothermal tube, the loss of electrothermal tube is relatively large, namely multiple electrothermal tubes there will be the faults such as damage or short circuit, and multiple electrothermal tubes are arranged to parallel connection by this utility model, namely when single electrothermal tube breaks down, without influence on the normal use of all the other electrothermal tubes, the output flow causing combustion gas to prevent from forming negative pressure between spray rail and filter at low ambient temperatures is not enough.

Being also equipped with aluminium bar at described tubular body, described heating wire winding is on described aluminium bar.When heating wire transships or crosses stream, it is easily caused power of heating wire decline or directly produce fusing, and the aluminium bar installed in body is wound around by heating wire, can ensure that within the regular hour heating wire works on, it is to avoid between spray rail and filter, again form the output flow deficiency of negative pressure and combustion gas.

This utility model compared with prior art, has such advantages as and beneficial effect:

1, this utility model adopts Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, heat loss can be reduced, be also convenient for picking and placeing electrothermal tube simultaneously, namely user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost；

2, this utility model adopts Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, heat loss can be reduced, be also convenient for picking and placeing electrothermal tube simultaneously, namely user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost；

3, this utility model is when heating wire transships or crosses stream, it is easily caused power of heating wire decline or directly produce fusing, and the aluminium bar installed in body is wound around by heating wire, can ensure that within the regular hour heating wire works on, it is to avoid between spray rail and filter, again form the output flow deficiency of negative pressure and combustion gas.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:

Fig. 1 is this utility model structural representation；

Fig. 2 is the structural representation of electrothermal tube；

Labelling and corresponding parts title in accompanying drawing:

1-air inlet pipe, 2-hollow pipe, 3-spray-hole, 4-groove, 5-heat-conducting plate, 6-electromagnetic valve, 7-electrothermal tube, 8-wiring plate, 9-binding post, 10-body, 11-insulant, 12-heating wire, 13-guide pad, 14-aluminium bar.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.

Embodiment 1

As depicted in figs. 1 and 2, the present embodiment includes air inlet pipe 1 and hollow pipe 2 in communication, multiple spray-hole 3 is had in hollow pipe 2 upper end, and correspondence is provided with electromagnetic valve 6 on described spray-hole 3, the groove 4 that cross section is major arc is had at described hollow pipe 2 inwall, and described spray-hole 3 is just to described groove 4, multiple electrothermal tube 7 it has been arranged side by side in described groove 4, guide pad 13 is installed bottom electrothermal tube 7, and bottom groove 4, have the gathering sill matched with guide pad 13, described electrothermal tube 7 includes body 10, it is filled in the insulant 11 within body 10 and is placed in the heating wire 12 within body 10, described heating wire 12 end is connected to binding post 9, groove 4 has, away from one end of air inlet pipe 1, the aperture being in communication with the outside, binding post 9 runs through aperture and is connected with wiring plate 8, and on the open end of groove 4, it is coated with heat-conducting plate 5, heat-conducting plate 5 is by spaced-apart in internal for described groove 4 and hollow pipe 2.

During work, combustion gas is injected directly in hollow pipe 2 by air inlet pipe 1, and is flowed into after in electromagnetic valve 6 by spray-hole 3, accurately regulating and then guaranteeing that combustion gas is maintained at the flow output of the best through electromagnetic valve 6；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, the inwall place of spray-hole 3 is just had groove 4 at hollow pipe 2 by the present embodiment, the heating that heats up is carried out by the gas circulation region in hollow pipe 2, utilize the caloric value of electrothermal tube 7 and the heat transmission of heat-conducting plate 5, make combustion gas in the ambient temperature entered before hollow pipe 2 in hollow pipe 2 relative to extraneous temperature drift, namely the pressure in hollow pipe 2 raises, combustion gas heated intensification to a certain extent after hollow pipe 2 is entered until combustion gas, effectively prevent the flow velocity producing negative pressure between spray rail and filter and affect combustion gas, ensure the normal circulation of combustion gas.

And, adopt Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove 4 of arc, by wiring plate 8, the side of groove 4 is sealed, heat loss can be reduced, being also convenient for picking and placeing electrothermal tube 7, namely user can determine the number of electrothermal tube 7 in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost simultaneously.

Wherein, in the lasting use procedure of electrothermal tube 7, the loss of electrothermal tube 7 is relatively large, namely multiple electrothermal tubes 7 there will be the faults such as damage or short circuit, and multiple electrothermal tubes 7 are arranged to parallel connection by the present embodiment, namely, when single electrothermal tube 7 breaks down, without influence on the normal use of all the other electrothermal tubes 7, the output flow causing combustion gas to prevent from forming negative pressure between spray rail and filter at low ambient temperatures is not enough；Body 10 bottom of electrothermal tube 7 is provided with guide pad 13 simultaneously, and guide pad 13 coordinates with gathering sill so that laying of body 10 is more stable, namely need not increase new fixed structure and just be capable of the fastening of electrothermal tube 7, reaches to optimize the purpose of spray rail internal structure.

As preferably, being also equipped with aluminium bar 14 inside described body 10, described heating wire 12 is wrapped on described aluminium bar 14.When heating wire 12 transships or crosses stream, it is easily caused heating wire 12 power drop or directly produces fusing, and the aluminium bar 14 installed in body 10 is wound around by heating wire 12, can ensure that within the regular hour heating wire 12 works on, it is to avoid between spray rail and filter, again form the output flow deficiency of negative pressure and combustion gas.

Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims

1. one kind has the anti-gas injection rail gradually freezing function, including air inlet pipe (1) and hollow pipe (2) in communication, multiple spray-hole (3) is had in hollow pipe (2) upper end, and in described spray-hole (3) upper correspondence, electromagnetic valve (6) is installed, it is characterized in that: have groove (4) at described hollow pipe (2) inwall, and described spray-hole (3) is just to described groove (4), multiple electrothermal tube (7) it has been arranged side by side in described groove (4), electrothermal tube (7) bottom is provided with guide pad (13), and have, in groove (4) bottom, the gathering sill matched with guide pad (13), described electrothermal tube (7) includes body (10), it is filled in the internal insulant (11) of body (10) and is placed in the heating wire (12) that body (10) is internal, described heating wire (12) end is connected to binding post (9), groove (4) has, away from one end of air inlet pipe (1), the aperture being in communication with the outside, binding post (9) runs through aperture and is connected with wiring plate (8), and on the open end of groove (4), it is coated with heat-conducting plate (5), heat-conducting plate (5) is by internal for described groove (4) and hollow pipe (2) interior spaced-apart.

2. according to claim 1 a kind of have the anti-gas injection rail gradually freezing function, it is characterised in that: parallel with one another between multiple described electrothermal tubes (7).

3. according to claim 1 a kind of have the anti-gas injection rail gradually freezing function, it is characterised in that: being also equipped with aluminium bar (14) described body (10) is internal, described heating wire (12) is wrapped on described aluminium bar (14).