CN203068148U - LNG (Liquefied Natural Gas) automobile odorizing equipment - Google Patents

Abstract

LNG automobile odorizing equipment relates to the structural improvement of odorizing equipment. The utility model provides LNG automobile odorizing equipment which is simple in structure and convenient to mount into an automobile. The LNG automobile odorizing equipment comprises a gas odorant storage tank, an LNG air intake tube and an LNG air offtake tube, and is structurally characterized in that the outlet of the LNG air intake tube is formed in the lower part of the gas odorant storage tank; the inlet of the LNG air offtake tube is formed in the upper part of the gas odorant storage tank; the LNG automobile odorizing equipment is equipped with various sensors so as to realize automatic control and alarm chain; a heating apparatus and proportioning valve split-flow tubes are also equipped so as to control and adjust the gas odorant amount; special and high-strength materials are chosen so as to guard against high temperature, low temperature and impacts; and a safe pressure relief device is equipped so as to guard against explosion.

Description

LNG automobile device for adding odor

Technical field

The utility model relates to the improvement of device for adding odor structure.

Background technique

Making gas ordorous is one of main means of guaranteeing combustion gas use, supply process safety.The LNG(LNG Liquefied natural gas) as the automobile source of the gas, adding smelly also is one of necessary security means.

LNG temperature when liquid state is lower, and the odorant that does not also have at present to be suitable for directly joins among the LNG, can only add smelly after the LNG vaporization.Under this condition, smelly select for use common device for adding odor just can realize for non-automobile with adding of LNG.Automobile is moving body, compact structure, ad hoc requirement small volume and less weight and safe and reliable; And present device for adding odor is all because volume is big, equipment is complicated, the incompatibility movement environment uses, and possibility is not installed in the car body.

Summary of the invention

The utility model is exactly at the problems referred to above, provides a kind of simple in structure, is convenient to be installed to the LNG automobile device for adding odor in the car body.

For achieving the above object, the utility model adopts following technological scheme, the utility model comprises odorant storage tank, LNG suction tude and LNG steam outlet pipe, the outlet of its structure outline LNG suction tude places bottom in the odorant storage tank, the import of LNG steam outlet pipe places odorant storage tank internal upper part, by behind the odorant storage tank, the certain density odorant of portability is in time found by the people when guaranteeing gas leakage and is reported to the police in combustion gas.

As a kind of preferred version, the utility model also comprises ram's horns, and the ram's horns import is communicated with the LNG suction tude, and the ram's horns outlet is communicated with the LNG steam outlet pipe; Ram's horns and/or LNG suction tude are provided with Proportional valve.The odorant concentration that is used for the control combustion gas has evenly constant and controlled odorant of concentration in the combustion gas that guarantees to export.

As another kind of preferred version, LNG suction tude inlet described in the utility model and LNG steam outlet pipe outlet port are provided with valve, the control fuel gas flow.

As another kind of preferred version, odorant storage tank described in the utility model is provided with heating equipment, is used for keeping the odorant steam in the odorant storage tank to have saturation vapor pressure.

As another kind of preferred version, odorant storage tank described in the utility model is provided with liquid level sensor, and the liquid level sensor output port links to each other with controlling alarm part port with the control section port of described device for adding odor respectively.When liquid level sensor liquid level in the odorant storage tank is not enough or excessive, sends electrical signal Alerts Off valve or caution and stop or make car flame-out.

As another kind of preferred version, device for adding odor described in the utility model has higher shock resistance, and when bump took place automobile, self was not fragile, do not leak odorant and combustion gas.

As another kind of preferred version, device for adding odor described in the utility model has higher heat resistance and resistance to low temperature, and when automobile caught fire, Decompression valves can automatic discharging decompressing, not Yin Gaowen and produce explosion phenomenon.Normal operation does not have damage under the extreme low temperature environment.

As another kind of preferred version, the warning facility of device for adding odor described in the utility model and automobile starting mechanism are chain, and under the condition that has gas leakage or device for adding odor to report to the police, automobile can not start or auto extinguishing closing automobile motor.

As another kind of preferred version, odorant storage tank described in the utility model is provided with safety relief valve.

As another kind of preferred version, odorant storage tank described in the utility model adopts stainless cylinder of steel.

Secondly, odorant storage tank described in the utility model is provided with baroceptor, the baroceptor output port links to each other with the control section port of described device for adding odor, guarantee that the odorant storage tank is in the safety pressure scope all the time, send the alarm signal throttle down when unusual superpressure or decompression are arranged and cut off combustion gas or open pressure relief valve pressure release (only opening at the high temperature explosion time).

In addition, odorant storage tank described in the utility model is provided with quick charging joint, has function quick, convenient additional odorant.

The utility model beneficial effect.

The outlet of the utility model suction tude places bottom in the odorant storage tank, and the steam outlet pipe import places odorant storage tank internal upper part.During use, the suction tude import is linked to each other with the outlet of LNG gasification and decompression device, the steam outlet pipe outlet links to each other with the motor car engine import and gets final product; Rely on the air-flow of fuel gas flow to take away the interior gaseous state odorant of odorant storage tank, realize adding smelly.Add smelly concentration by the ram's horns regulation and control, keep adding smelly evenly constant by heating equipment, in time send trouble signal, accurately grasp equipment state by sensor, by using high strength, high temperature resistant, low temperature material and pressure relief to guarantee that equipment in contingency, do not explode at thermal extremes, does not damage under the extreme low temperature environment.Therefore the utility model is simple in structure, volume is little, is convenient to be installed in the car body.In addition, the utility model also may be used on other making gas ordorous place.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described further.The utility model protection domain not only is confined to the statement of following content.

Fig. 1 is the utility model structured flowchart.

Embodiment

As shown in the figure, the utility model comprises odorant storage tinning, LNG suction tude and LNG steam outlet pipe, and the outlet of LNG suction tude places bottom in the odorant storage tank, and the import of LNG steam outlet pipe places odorant storage tank internal upper part.

The utility model also comprises ram's horns, and the ram's horns import is communicated with the LNG suction tude, and the ram's horns outlet is communicated with the LNG steam outlet pipe; Ram's horns and/or LNG suction tude are provided with Proportional valve.The gas flow of ram's horns and/or LNG suction tude is mediated by Proportional valve, realizes the odorizing amount of control combustion gas.

Described suction tude inlet and LNG steam outlet pipe outlet port are provided with valve.

Described odorant storage tank is provided with heating equipment; Be used for control odorant steam and be in the saturated vapor pressure condition all the time, also can heat by vehicle exhaust.

Described odorant storage tank is provided with liquid level sensor, and the liquid level sensor output port links to each other with controlling alarm part port with the control section port of described heating equipment respectively.Can promptly and accurately show the odorant reserves by liquid level sensor, and before no odorant, partly report to the police by controlling alarm that prompting replenishes odorant.The control section control heating equipment of heating equipment stops heating when odorant is not enough, protective gear is without prejudice.

Described odorant storage tank is provided with baroceptor, and the baroceptor output port links to each other with the control section port of described heating equipment.The output signal control heating equipment that the control section of heating equipment receives baroceptor makes odorant steam be in saturation state all the time; As when the odorant storage tank is passed through in combustion gas, take away part odorant steam, heating equipment improves heating-up temperature, makes the odorant vapor tension maintain saturation vapour pressure, the influence that not passed through by fuel gas flow, thereby the concentration substantially constant of the odorant steam that assurance is taken away.

Described odorant storage tank is provided with quick charging joint.Can make odorant fill fast, not have and leak outside by quick charging joint, be full of automatic warning and close.

Below in conjunction with description of drawings using process of the present utility model.

At first the utility model is installed on the gas phase fuel gas pipeline of vaporizer back of automobile LNG bottle; The import that is about to the LNG suction tude links to each other with the outlet of LNG gasification and decompression device, and the LNG steam outlet pipe links to each other with the car engine air admittance mouth.Open the valve in LNG suction tude inlet and LNG steam outlet pipe outlet port, the LNG first via after the gasification is through the odorant storage tank, and the air-flow of dependence fuel gas flow is taken away the steam of odorant, realizes adding smelly; The second the tunnel enters through ram's horns and to enter motor after steam outlet pipe and the first via are converged.

Be understandable that, more than about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technological scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.

Claims (9)

1.LNG the automobile device for adding odor comprises odorant storage tank, LNG suction tude and LNG steam outlet pipe, it is characterized in that the outlet of LNG suction tude places bottom in the odorant storage tank, the import of LNG steam outlet pipe places odorant storage tank internal upper part.

2. according to the described LNG automobile of claim 1 device for adding odor, it is characterized in that also comprising ram's horns, the ram's horns import is communicated with the LNG suction tude, and the ram's horns outlet is communicated with the LNG steam outlet pipe; Ram's horns and/or LNG suction tude are provided with Proportional valve.

3. according to the described LNG automobile of claim 1 device for adding odor, it is characterized in that described LNG suction tude inlet and LNG steam outlet pipe outlet port are provided with valve.

4. according to the described LNG automobile of claim 1 device for adding odor, it is characterized in that described odorant storage tank is provided with heating equipment.

5. according to the described LNG automobile of claim 4 device for adding odor, it is characterized in that described odorant storage tank is provided with liquid level sensor, the liquid level sensor output port links to each other with controlling alarm part port with the control section port of described heating equipment respectively.

6. according to the described LNG automobile of claim 4 device for adding odor, it is characterized in that described odorant storage tank is provided with baroceptor, the baroceptor output port links to each other with the control section port of described heating equipment.

7. according to the described LNG automobile of claim 1 device for adding odor, it is characterized in that described odorant storage tank is provided with quick charging joint.

8. according to the described LNG automobile of claim 1 device for adding odor, it is characterized in that described odorant storage tank is provided with safety relief valve.

9. according to the described LNG automobile of claim 1 device for adding odor, it is characterized in that described odorant storage tank adopts stainless cylinder of steel.