CN211598857U - Fuel power equipment evaporation discharge system and fuel power equipment - Google Patents
Fuel power equipment evaporation discharge system and fuel power equipment Download PDFInfo
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- CN211598857U CN211598857U CN202020277362.6U CN202020277362U CN211598857U CN 211598857 U CN211598857 U CN 211598857U CN 202020277362 U CN202020277362 U CN 202020277362U CN 211598857 U CN211598857 U CN 211598857U
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Abstract
The utility model discloses a fuel power equipment evaporation discharge system, including confined oil tank, the empty filter of carbon tank and connection engine, be equipped with the carbon dust that is used for adsorbing the fuel steam of evaporation in the carbon tank, the oil tank is through the first work mouth of first breather pipe connection carbon tank, install the pressure control valve on the first breather pipe, when positive pressure in the oil tank reaches first default, the pressure control valve is opened, make oil tank and carbon tank intercommunication, fuel steam gets into the carbon tank, when positive pressure in the oil tank does not reach first default, the pressure control valve is closed, it is isolated with the carbon tank to make the oil tank. The frequency of use of the charcoal canister is reduced, the requirement of the whole evaporative emission system on the working capacity of the charcoal canister is reduced, the cost is reduced, meanwhile, the evaporative emission system at high temperature is prevented from being out of work, the consumption of fuel at high temperature is reduced, the fuel is saved, and the safety of equipment is improved. The utility model discloses still disclose the fuel power equipment including above-mentioned system.
Description
Technical Field
The utility model relates to a fuel equipment field especially relates to a fuel power equipment evaporation discharge system. Furthermore, the utility model discloses still relate to a fuel power equipment including above-mentioned system.
Background
The fuel power equipment is widely applied to various technical fields, including fuel engines, fuel generator sets and the like, the fuel power equipment has certain similarity in structure, and comprises fuel tanks and engines, the fuel engines are directly powered by the engines, and the engines in the fuel generator sets provide power for rotors to realize power generation.
In actual use, at high temperature and during equipment operation, the fuel evaporation amount in the fuel tank is increased due to the influence of fuel temperature and vibration, so that an evaporative emission system is required to remove fuel vapor.
Current evaporation discharge system includes breather pipe and carbon tank, utilizes breather pipe intercommunication oil tank and carbon tank, and fuel steam in the oil tank gets into the carbon tank along the breather pipe, is adsorbed by the inside carbon dust of carbon tank, prevents that fuel steam from revealing in the atmosphere. However, when the evaporation capacity of the fuel oil is continuously increased, a large-volume carbon canister or better carbon powder is required for adsorption, so that leakage can be avoided; in addition, even if the volume of the carbon tank is increased or better carbon powder is replaced, the carbon tank is easily punctured under the continuous action of high temperature, oil gas leakage is caused, the equipment cost is increased, and potential safety hazards exist.
Therefore, how to avoid the increase of the use cost of the carbon canister and the risk of oil gas leakage under the condition of increasing the evaporation amount of the oil gas under the high-temperature condition is a technical problem to be solved by the technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fuel power equipment evaporation discharge system, through the connected state of pressure control valve control oil tank and carbon tank, only when the positive pressure is enough big in the oil tank, just use the carbon tank to adsorb, reduce the frequency of use of carbon tank, reduce cost. Another object of the present invention is to provide a fuel powered apparatus including the above system.
In order to solve the technical problem, the utility model provides a fuel power equipment evaporation discharge system, including the empty filter of confined oil tank, carbon tank and connection engine, be equipped with the carbon dust that is used for adsorbing the fuel steam of evaporation in the carbon tank, the oil tank is connected through first breather pipe the first working port of carbon tank, install the pressure control valve on the first breather pipe, when positive pressure in the oil tank reaches first default, the pressure control valve is opened, makes the oil tank with carbon tank intercommunication, fuel steam gets into the carbon tank, positive pressure in the oil tank has not reached during first default, the pressure control valve is closed, makes the oil tank with the carbon tank is isolated.
Preferably, the air filter is connected with the second working port of the carbon tank through a second vent pipe, and the air filter is used for providing negative pressure to desorb carbon powder in the carbon tank.
Preferably, the pressure control valve is embodied as a mechanical spring pressure control valve.
Preferably, a pressure detector is installed above the inside of the oil tank, the pressure control valve is specifically an electromagnetic switch valve, and the opening and closing of the electromagnetic switch valve is controlled according to a detection result of the pressure detector.
Preferably, the oil tank upper end is provided with the opening pipe that upwards extends and communicate the inside of oil tank, the top demountable installation of opening pipe has the closure the totally closed fuel tank cap of oil tank, first breather pipe is connected the side of opening pipe.
Preferably, when the negative pressure in the oil tank reaches a second preset value, the pressure control valve is opened to communicate the oil tank with the carbon canister, and air enters the oil tank.
Preferably, be provided with the atmospheric air vent of intercommunication on the carbon tank, first workport with the second workport set up in the one end of carbon tank, the air vent set up in the other end of carbon tank to increase gaseous by first workport extremely the flow resistance of air vent.
Preferably, a check valve is mounted on the fully-closed oil tank cover, and when the negative pressure in the oil tank reaches a second preset value, the check valve is opened to communicate the oil tank with the atmosphere, so that air enters the oil tank.
The utility model provides a fuel power equipment, including fuel power equipment evaporation discharge system, fuel power equipment evaporation discharge system specifically is the arbitrary one of above-mentioned fuel power equipment evaporation discharge system.
Preferably, the fuel powered device is embodied as a fuel engine or a fuel generator set.
The utility model provides a fuel power equipment evaporation discharge system, including confined oil tank, the empty filter of carbon tank and connection engine, be equipped with the carbon dust that is used for adsorbing the fuel steam of evaporation in the carbon tank, the oil tank is through the first work mouth of first breather pipe connection carbon tank, install the pressure control valve on the first breather pipe, when positive pressure in the oil tank reaches first default, the pressure control valve is opened, make oil tank and carbon tank intercommunication, fuel steam gets into the carbon tank, when positive pressure in the oil tank does not reach first default, the pressure control valve is closed, it is isolated with the carbon tank to make the oil tank.
Through the connected state of pressure control valve control oil tank and carbon tank, when the positive pressure in the oil tank does not reach first default, it is big inadequately to show inside positive pressure promptly, the pressure control valve is closed, fuel steam can not get into the carbon tank and adsorb, when the positive pressure in the oil tank reaches first default, it is big enough to show inside positive pressure promptly, the pressure valve is opened, fuel steam gets into the carbon tank and adsorbs, reduce the oil gas that gets into the carbon tank, the frequency of use of carbon tank is reduced, reduce the requirement of whole evaporation discharge system to carbon tank working capacity, and then reduce cost, prevent simultaneously that the evaporation discharge system under the high temperature from becoming invalid, reduce the consumption under the fuel high temperature, save the fuel, the lifting means security.
The utility model discloses still provide a fuel power equipment including above-mentioned system, because above-mentioned system has above-mentioned technological effect, above-mentioned fuel power equipment also should have same technological effect, no longer introduces in detail here.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an evaporative emission system of a fuel power plant according to the present invention.
Detailed Description
The core of the utility model is to provide a fuel power equipment evaporation discharge system, through the connected state of pressure control valve control oil tank and carbon tank, only when the positive pressure is enough big in the oil tank, just use the carbon tank to adsorb, reduce the frequency of use of carbon tank, reduce cost. The other core of the utility model is to provide a fuel power equipment including above-mentioned system.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an evaporative emission system of a fuel power plant according to the present invention.
The utility model discloses embodiment provides a fuel power equipment evaporation discharge system, including confined oil tank 1, carbon tank 2 and the empty filter 4 of connecting engine 3, be equipped with the carbon dust that is used for adsorbing the fuel steam of evaporation in the carbon tank 2, the first working hole of carbon tank 2 is connected through first breather pipe 5 to oil tank 1, install pressure control valve 6 on the first breather pipe 5, when the positive pressure in the oil tank 1 reaches first default, pressure control valve 6 is opened, make oil tank 1 and carbon tank 2 intercommunication, fuel steam gets into carbon tank 2, when the positive pressure in the oil tank 1 does not reach first default, pressure control valve 6 closes, make oil tank 1 and carbon tank 2 isolated.
Through the communicating state of pressure control valve 6 control oil tank 1 and carbon canister 2, when the positive pressure in the oil tank 2 does not reach first default, it is big inadequately to show inside positive pressure promptly, pressure control valve 6 closes, fuel steam can not get into carbon canister 2 and adsorb, when the positive pressure in the oil tank 1 reaches first default, it is big enough to show inside positive pressure promptly, pressure control valve 6 opens, fuel steam gets into carbon canister 2 and adsorbs, reduce the oil gas that gets into carbon canister 2, reduce the frequency of use of carbon canister 2, reduce the requirement of whole evaporation discharge system to carbon canister 2 working capacity, and then reduce cost, prevent evaporation discharge system under the high temperature from becoming invalid simultaneously, reduce the consumption under the fuel high temperature, save the fuel, the lifting means security.
In order to prolong the service life of carbon tank 2, the carbon powder in carbon tank 2 needs to be desorbed, and air filter 4 is connected with the second working opening of carbon tank 2 through second vent pipe 7, and when desorption is needed, air filter 4 is used for providing negative pressure to desorb the carbon powder in carbon tank 2. The purity of the carbon powder in the carbon tank can be ensured by replacing the carbon tank 2, but the cost is higher.
The utility model discloses in the fuel power equipment evaporation discharge system that embodiment provided, pressure control valve 6 can adopt multiple form, specifically can be mechanical type spring pressure control valve, according to the elastic coefficient control opening pressure of spring, and 1 inside normal pressure of oil tank is greater than behind the spring resistance promptly, can control valve and open, and consequently first default can be adjusted according to adjusting spring's performance parameter. The valve has simple structure and convenient and fast control.
The pressure control valve 6 can also adopt an electric control mode, the pressure detector is installed above the inside of the oil tank 1, the pressure inside the oil tank 1 is monitored in real time, the pressure control valve 6 is specifically an electromagnetic switch valve and is also provided with a controller, the detection result of the pressure detector is sent to the controller, whether the internal positive pressure reaches a first preset value or not is judged by the controller, and then the opening and closing of the electromagnetic switch valve are controlled. The control is more accurate in the mode, and control delay is avoided. Of course, hydraulic control or pneumatic control can be adopted, and the like, and the protection scope of the utility model is included.
On the basis of the evaporative emission system of the fuel power equipment provided by each embodiment, the upper end of the fuel tank 1 is provided with an opening pipe which extends upwards and is communicated with the inside of the fuel tank 1, a totally-enclosed fuel tank cover 11 which closes the fuel tank 1 is detachably mounted above the opening pipe, and the first vent pipe 5 is connected with the side surface of the opening pipe. The joint of the first vent pipe 5 and the oil tank 1 is basically located at the highest position of the oil tank 1, so that fuel oil is prevented from overflowing, other connection modes can be adopted, if the first vent pipe 5 is connected with the upper end surface of the oil tank 1, the fully-closed oil tank cover 11 is connected with the opening pipe through threads, and a plurality of sealing structures are arranged to achieve the fully-closed effect.
In the normal use process, negative pressure can be generated inside the oil tank 1 due to the fact that the temperature of fuel inside the oil tank 1 is reduced or the height of the fuel surface is reduced, in the prior art, the pressure inside the oil tank is generally balanced by arranging vent holes on the oil tank 1, but the mode can cause the leakage of fuel steam with air holes, and the effect of the whole system is lost.
Therefore in the utility model discloses in the fuel power equipment evaporation discharge system that embodiment provided, oil tank 1 is enclosed construction, rational utilization pressure control valve 6 simultaneously, and when the negative pressure in the oil tank 1 reached the second default, pressure control valve 6 was opened, made oil tank 1 and carbon tank 2 intercommunication, and the air gets into 1 additional pressure in the oil tank. Specifically, can be through the mechanical structure of adjustment pressure control valve 6, be equipped with corresponding inlet channel and case, or adopt automatically controlled mode, all be in the utility model discloses an within the scope of protection.
Be provided with the vent 21 of intercommunication atmosphere on carbon canister 2, first working port and second working port set up in the one end of carbon canister 2, vent 21 sets up in the other end of carbon canister 2 to through setting up the inner structure arrangement mode, increase gaseous flow resistance to vent 21 by first working port, realize that air gets into under the negative pressure state, prevent that fuel steam is discharged by vent 21 under the positive pressure state.
The negative pressure supplement can also be realized by other modes, a one-way valve is arranged on the totally-closed oil tank cover 11, the one-way valve is kept closed under the positive pressure state, fuel steam in the oil tank 1 cannot be discharged from the one-way valve, and the one-way valve is opened under the negative pressure state when the negative pressure in the oil tank 1 reaches a second preset value, so that the oil tank 1 is communicated with the atmosphere, and air enters the oil tank 1. The second preset value can be adjusted according to the safety need and the emission demand of fuel steam, or according to the circumstances adjusting valve type and mounted position, all is within the utility model discloses a within the scope of protection.
Except above-mentioned fuel power equipment evaporation discharge system, the utility model discloses a specific embodiment still provides a fuel power equipment including above-mentioned fuel power equipment evaporation discharge system, and the structure of other each parts of this fuel power equipment please refer to prior art, and this text is no longer repeated.
Specifically, the fuel-powered device may be a fuel engine or a fuel-powered generator set.
It is right above that the utility model provides a fuel power equipment evaporation discharge system and fuel power equipment have introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. An evaporative emission system of fuel oil power equipment is characterized by comprising a closed oil tank (1), a carbon tank (2) and an air filter (4) connected with an engine (3), carbon powder for adsorbing evaporated fuel steam is arranged in the carbon tank (2), the oil tank (1) is connected with a first working opening of the carbon tank (2) through a first vent pipe (5), the first vent pipe (5) is provided with a pressure control valve (6), when the positive pressure in the oil tank (1) reaches a first preset value, the pressure control valve (6) is opened to enable the oil tank (1) to be communicated with the carbon tank (2), fuel steam enters the carbon tank (2), and when the positive pressure in the oil tank (1) does not reach the first preset value, the pressure control valve (6) is closed, so that the oil tank (1) is isolated from the carbon tank (2).
2. A fuel powered plant evaporative emission system as set forth in claim 1 wherein the air filter (4) is connected to the second working port of the canister (2) by a second vent line (7), the air filter (4) being adapted to provide negative pressure to desorb carbon powder from the canister (2).
3. An evaporative emission system for a fuel powered device as set forth in claim 2 wherein the pressure control valve (6) is embodied as a mechanical spring pressure control valve.
4. A fuel powered equipment evaporative emission system as defined in claim 2 wherein a pressure detector is installed above the inside of the fuel tank (1), and the pressure control valve (6) is embodied as an electromagnetic on-off valve whose opening and closing are controlled according to the detection result of the pressure detector.
5. A fuel power plant evaporative emission system as defined in any of claims 2 to 4, wherein the fuel tank (1) is provided at its upper end with an open pipe extending upward and communicating with the inside of the fuel tank (1), a totally enclosed fuel tank cap (11) closing the fuel tank (1) is detachably mounted above the open pipe, and the first vent pipe (5) is connected to the side of the open pipe.
6. A fuel powered apparatus evaporative emission system as claimed in claim 5, wherein the pressure control valve (6) opens when the negative pressure within the fuel tank (1) reaches a second predetermined level, allowing the fuel tank (1) to communicate with the canister (2) and air to enter the fuel tank (1).
7. A fuel powered apparatus evaporative emission system as claimed in claim 6 wherein the canister (2) is provided with a vent (21) to atmosphere, the first and second ports being provided at one end of the canister (2), the vent (21) being provided at the other end of the canister (2) and increasing the resistance to flow of gas from the first port to the vent (21).
8. A fuel power plant evaporative emission system as set forth in claim 5 wherein a check valve is mounted to the hermetically sealed fuel tank cap (11) and opens when the negative pressure within the fuel tank (1) reaches a second predetermined level to vent the fuel tank (1) to atmosphere and allow air to enter the fuel tank (1).
9. A fuel powered device comprising a fuel powered device evaporative emissions system, wherein the fuel powered device evaporative emissions system is particularly as claimed in any one of claims 1 to 8.
10. The fuel powered device of claim 9, characterized in that the fuel powered device is embodied as a fuel engine or a fuel generator set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020277362.6U CN211598857U (en) | 2020-03-09 | 2020-03-09 | Fuel power equipment evaporation discharge system and fuel power equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020277362.6U CN211598857U (en) | 2020-03-09 | 2020-03-09 | Fuel power equipment evaporation discharge system and fuel power equipment |
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| CN211598857U true CN211598857U (en) | 2020-09-29 |
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| CN202020277362.6U Active CN211598857U (en) | 2020-03-09 | 2020-03-09 | Fuel power equipment evaporation discharge system and fuel power equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151588A (en) * | 2021-12-06 | 2022-03-08 | 重庆隆鑫新能源科技有限公司 | Valve and engine-driven generator |
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2020
- 2020-03-09 CN CN202020277362.6U patent/CN211598857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151588A (en) * | 2021-12-06 | 2022-03-08 | 重庆隆鑫新能源科技有限公司 | Valve and engine-driven generator |
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