阅读说明：本技术 一种行走动力站的预热系统、方法及行走动力站 (Walking power station and preheating system and method thereof ) 是由 谭广斌 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种行走动力站的预热系统、方法及行走动力站,属于工程机械设备技术领域。该预热系统包括发动机、发动机水箱、燃油加热器、分配阀、燃油箱和若干加热执行器件,发动机与发动机水箱连接；发动机的第二出水口通过第一球阀与燃油加热器的进水口连接；燃油加热器的出水口与分配阀的第一腔体连接,第一腔体与加热执行器件连接；各加热执行器件的出水口与第二腔体连接,分配阀的第二腔体的出水口通过第二球阀与第一回水口连接；燃油箱的出油口通过三通分别与燃油加热器的吸油口和发动机的进油口连接。所述方法基于所提供的预热系统进行,行走动力站利用所提供的系统和方法进行预热。本发明预热效果好,通用性好,安全可靠。(The invention discloses a preheating system and method for a walking power station and the walking power station, and belongs to the technical field of engineering mechanical equipment. The preheating system comprises an engine, an engine water tank, a fuel oil heater, a distribution valve, a fuel tank and a plurality of heating execution devices, wherein the engine is connected with the engine water tank; a second water outlet of the engine is connected with a water inlet of the fuel heater through a first ball valve; the water outlet of the fuel heater is connected with the first cavity of the distribution valve, and the first cavity is connected with the heating execution device; the water outlet of each heating execution device is connected with the second cavity, and the water outlet of the second cavity of the distribution valve is connected with the first water return port through a second ball valve; an oil outlet of the fuel tank is respectively connected with an oil suction port of the fuel heater and an oil inlet of the engine through a tee joint. The method is based on the provided preheating system, and the walking power station is preheated by using the provided system and method. The invention has good preheating effect, good universality, safety and reliability.)

1. A system for preheating a traveling power station, comprising: the heating system comprises an engine (1), an engine water tank (2), a fuel oil heater (3), a distribution valve (4), a fuel oil tank (5) and a plurality of heating execution devices, wherein the engine (1) at least comprises a first water inlet (6), a first water outlet (7), a first water return opening (8) and a second water outlet (9); the dispensing valve (4) comprises at least a first cavity (10) and a second cavity (11);

the first water inlet (6) is connected with a water outlet of the engine water tank (2), and the first water outlet (7) is connected with a water return port of the engine water tank (2); the second water outlet (9) is connected with a water inlet of the fuel heater (3) through a first ball valve (12); the water outlet of the fuel heater (3) is connected with the water inlet of the first cavity (10), and the water outlet of the first cavity (10) is connected with a heating execution device; the water outlet of each heating executive device is connected with the water inlet of the second cavity (11), and the water outlet of the second cavity (11) is connected with the first water return port (8) through a second ball valve (13);

an oil outlet of the fuel tank (5) is respectively connected with an oil suction port of the fuel heater (3) and an oil inlet of the engine (1) through a tee joint (14).

2. The system for preheating a walking power station according to claim 1, characterized in that a fuel filter (15) is arranged between the tee joint (14) and the fuel tank (5), and the fuel filter (15) has a heating function.

3. The power station warming-up system according to claim 2, characterized in that a first temperature sensor (16) is provided in the fuel tank (5).

4. The walking power station preheating system according to any one of claims 1 to 3, wherein the plurality of heating performing devices include a fuel tank heater (17), a battery heater (18), a hydraulic fuel tank heater (19), and an oil pan heater (20) for heating the fuel tank, and the battery, the hydraulic fuel tank, and the oil pan of the walking power station, respectively.

5. The pre-heating system of a walking power station of claim 4, characterized in that the fuel tank heater (17) is arranged in the fuel tank (5), the battery heater (18) is arranged at the bottom of the battery, the hydraulic oil tank heater (19) is arranged in the hydraulic oil tank, and the oil pan heater (20) is arranged in the engine oil pan.

6. The walking power station preheating system of claim 5, further comprising a second temperature sensor disposed in the hydraulic oil tank, a third temperature sensor disposed on the battery box, and a fourth temperature sensor disposed on the oil pan.

7. The pre-heating system of a walking power station of claim 6, characterized in that when the fuel heater is not operating, both the first ball valve (12) and the second ball valve (13) remain closed.

8. A method of pre-heating a walking power station using the pre-heating system of the walking power station of any one of claims 1-7, comprising:

filling the engine water tank (2) with cooling water;

opening the first ball valve (12) and the second ball valve (13);

starting the fuel heater (3), sucking oil from the fuel tank (5) by an oil pump in the fuel heater (3), and starting the fuel heater (3) to work;

cooling water in an engine (1) enters a fuel heater (3) for heating, the heated cooling water enters a first cavity (10) of a distribution valve (4) for shunting, and enters heating execution elements after shunting;

cooling water passing through each heating execution device flows back to a second cavity (11) of the distribution valve (4), then flows back to the engine (1) through a first water return port (8) through a second ball valve (13) to preheat the engine;

the cooling water flows out from the second water outlet (9) to form a heating closed loop, and the components of the walking power station are continuously heated.

9. The method of claim 8, further comprising:

when the fuel oil heater (3) reaches the set heating time, the fuel oil heater (3) is automatically cut off, and heating is stopped;

when the fuel oil heater (3) does not reach the set heating time, if each temperature sensor reaches the corresponding set temperature, the heating of the part corresponding to the temperature sensor is stopped, and when the temperatures of all the temperature sensors all reach the corresponding set temperatures, the fuel oil heater (3) is automatically cut off, and the heating is stopped;

the first ball valve (12) and the second ball valve (13) are then closed.

10. A walking power station, characterized in that it comprises a preheating system of a walking power station according to any of claims 1-7 and that the walking power station is preheated by the method according to claim 8 or 9.

Technical Field

The invention belongs to the field of engineering mechanical equipment, and particularly relates to a preheating system and method for a walking power station and the walking power station.

Background

The walking power station is a device for providing auxiliary hydraulic power for engineering mechanical equipment such as an open-air drilling machine and the like, and is widely applied to complex operation environments. At present, the walking power station is also applied to high-cold and extremely-cold areas. For alpine and extremely cold regions, because the temperature is very low, the relative electric quantity of a storage battery on a walking power station is reduced, the discharge performance is greatly reduced, oil products such as engine oil, fuel oil and hydraulic oil become viscous due to the reduction of the temperature, the resistance among all friction pairs is increased, and in addition, a hydraulic system carried by a flywheel end of the engine has a certain starting load, so that the problem that the engine is difficult to start under a low-temperature condition is very easily caused.

In the prior art, low-temperature-resistant fuel oil, engine oil and hydraulic oil are mostly adopted, a heat-preservation and windproof design is added for a storage battery, and flame is used for heating an oil pan, and ether is sprayed when an engine is started and the like are used as auxiliary means. Although these measures have a certain effect, the preheating effect is not ideal, and there is a great safety risk.

Disclosure of Invention

The technical problem is as follows: the invention provides a preheating system and a preheating method for a traveling power station, which have good preheating effect, good universality, safety and reliability, and the traveling power station using the system and the method, and can preheat all parts of the traveling power station in alpine and extremely cold regions.

The technical scheme is as follows: in one aspect, the present invention provides a preheating system for a walking power station, comprising: the fuel heating system comprises an engine, an engine water tank, a fuel heater, a distribution valve, a fuel tank and a plurality of heating execution devices, wherein the engine at least comprises a first water inlet, a first water outlet, a first water return port and a second water outlet; the dispensing valve comprises at least a first cavity and a second cavity;

the first water inlet is connected with a water outlet of the engine water tank, and the first water outlet is connected with a water return port of the engine water tank; the second water outlet is connected with the water inlet of the fuel heater through a first ball valve; the water outlet of the fuel heater is connected with the water inlet of the first cavity, and the water outlet of the first cavity is connected with the heating execution device; the water outlet of each heating execution device is connected with the water inlet of the second cavity, and the water outlet of the second cavity is connected with the first water return port through a second ball valve;

an oil outlet of the fuel tank is respectively connected with an oil suction port of the fuel heater and an oil inlet of the engine through a tee joint.

Further, be provided with the fuel filter between tee bend and the fuel tank, the fuel filter possesses the heating function.

Further, a first temperature sensor is arranged in the fuel tank.

Furthermore, the heating execution devices comprise a fuel tank heater, a battery heater, a hydraulic oil tank heater and an oil pan heater which are respectively used for heating the fuel tank, and a battery, the hydraulic oil tank and an oil pan of the walking power station.

Further, the fuel tank heater is arranged in the fuel tank, the battery heater is arranged at the bottom of the battery, the hydraulic fuel tank heater is arranged in the hydraulic oil tank, and the oil pan heater is arranged in an oil pan of the engine.

Further, the system also comprises a second temperature sensor arranged in the hydraulic oil tank, a third temperature sensor arranged on the battery box and a fourth temperature sensor arranged on the oil pan.

Further, when the fuel heater is not operating, both the first ball valve and the second ball valve remain closed.

Compared with the prior art, when the preheating system provided by the embodiment of the invention is utilized, cooling water in the water tank of the engine enters the engine, then the cooling water in the engine enters the fuel heater to be heated, the heated cooling water is divided to enter each heating execution device, and each heating device heats parts needing to be preheated on the walking power station; and the cooling water flowing through each heating execution device flows back to the engine after being subjected to flow concentration, preheats the engine, then flows out of the engine, forms a closed heating cycle according to the flowing direction, and continuously heats all parts until the heating time reaches or the heating temperature reaches a set temperature. According to the scheme, all the parts are preheated by cooling water, and compared with the prior art, the preheating effect is better, meanwhile, the method has better universality, can reduce danger, and is safe and reliable.

In a second aspect, the present invention provides a method for preheating a walking power station using a provided preheating system of the walking power station, comprising: filling the engine water tank with cooling water;

opening the first ball valve and the second ball valve;

starting the fuel oil heater, sucking oil from the fuel oil tank by an oil pump in the fuel oil heater, and starting the fuel oil heater to work;

cooling water in the engine enters a fuel heater for heating, the heated cooling water enters a first cavity of a distribution valve for shunting, and the shunted cooling water enters each heating execution element;

cooling water passing through each heating execution device flows back to a second cavity of the distribution valve, then flows back to the engine through a first water return port through a second ball valve to preheat the engine;

and the cooling water flows out from the second water outlet to form a heating closed loop, and the heating is continuously performed on all parts of the walking power station.

Further, when the fuel oil heater reaches the set heating time, the fuel oil heater is automatically cut off, and heating is stopped;

when the fuel oil heater does not reach the set heating time, if each temperature sensor reaches the corresponding set temperature, the heating of the part corresponding to the temperature sensor is stopped, and when the temperatures of all the temperature sensors reach the corresponding set temperatures, the fuel oil heater is automatically cut off, and the heating is stopped; the first and second ball valves are then closed.

Compared with a heating method used in the prior art, after the cooling water is heated by a fuel oil heater, all parts needing to be preheated on the whole walking power station are preheated by the cooling water without modes of flame heating, ether heating and the like, the preheating effect is good, the universality is good, the safety is higher, and the method is more suitable for the operation environment of alpine and extremely cold regions.

In a third aspect, the invention provides a walking power station comprising a provided preheating system of the walking power station and utilizing the provided method for preheating the walking power station. Compared with the prior art, the walking power station has a good preheating effect and can adapt to the working environment of high-cold and extremely-cold areas.

Drawings

Fig. 1 is a system block diagram of a warm-up system of a walking power station in an embodiment of the present invention.

The figure shows that: 1. an engine; 2. an engine water tank; 3. a fuel oil heater; 4. a dispensing valve; 5. a fuel tank; 6. a first water inlet; 7. a first water outlet; 8. a first water return port; 9. a second water outlet; 10. a first cavity; 11. a second cavity; 12. a first ball valve; 13. a second ball valve; 14. a tee joint; 15. a fuel filter; 16. a first temperature sensor; 17. a fuel tank heater; 18. a battery heater; 19. a hydraulic tank heater; 20. an oil pan heater.

Detailed Description

The invention is further described with reference to the following examples and the accompanying drawings. It is noted that the terms "first," "second," and the like are used for convenience of description only and are not to be construed as limiting in number or the like.

In a first aspect, in an embodiment of the present invention, the preheating system of the traveling power station is mainly used in the traveling power station, and generally, the traveling power station is composed of an engine, a fuel tank, a battery, a hydraulic oil tank, a gear box, a hydraulic pump, a quick plug, a controller, and the like.

As shown in fig. 1, the warm-up system includes an engine 1, an engine water tank 2, a fuel heater 3, a distribution valve 4, a fuel tank 5, and a plurality of heating actuators. The engine 1 at least comprises a first water inlet 6, a first water outlet 7, a first water return port 8 and a second water outlet 9; the dispensing valve 4 comprises at least a first chamber 10 and a second chamber 11; the first water inlet 6 is connected with a water outlet of the engine water tank 2, and the first water outlet 7 is connected with a water return port of the engine water tank 2; the second water outlet 9 is connected with a water inlet of the fuel heater 3 through a first ball valve 12; the water outlet of the fuel oil heater 3 is connected with the water inlet of the first cavity 10, and the water outlet of the first cavity 10 is connected with a heating execution device; the water outlet of each heating executive device is connected with the water inlet of the second cavity 11, and the water outlet of the second cavity 11 is connected with the first water return port 8 through the second ball valve 13. An oil outlet of the fuel tank 5 is respectively connected with an oil suction port of the fuel heater 3 and an oil inlet of the engine 1 through a tee joint 14. In the embodiment of the present invention, when the fuel heater 3 is not operated, the first ball valve 12 and the second ball valve 13 are in the closed state.

The above components are connected by pipelines, and the engine 1 and the fuel heater 3 share a fuel tank 5. The distributing valve 4 mainly functions as a flow divider and a flow combiner, and specifically, the flow divider is implemented in the first cavity 10, and the flow combiner is implemented in the second cavity 11. The distribution valve can adopt a hydraulic valve with the functions of flow dividing and flow collecting on the market.

The cooling water in the engine water tank 2 is added into the engine 1 from a first water inlet 6 of the engine 1, passes through a pipeline in the engine 1, and then returns to the engine water tank 2 from a first water outlet 7. The cooling water flowing out of the second water outlet 9 of the engine 1 enters the heater.

In the embodiment of the invention, a fuel filter 15 is arranged between the tee 14 and the fuel tank 5 so as to filter the fuel coming out of the fuel tank 5. The fuel filter 15 has a heating function, and can preheat fuel. In the market at present, there are many fuel filters 15 with heating function, and the type can be directly selected according to the requirement.

The heating executing device is mainly a heater for heating parts needing to be preheated on the walking power station, and in the embodiment of the invention, the heating executing device comprises a fuel tank heater 17, a battery heater 18, a hydraulic fuel tank heater 19 and an oil pan heater 20 which are respectively used for heating a fuel tank and a battery, a hydraulic fuel tank and an oil pan of the walking power station. A fuel tank heater 17 is provided in the fuel tank 5, a battery heater 18 is provided at the bottom of the battery, a hydraulic tank heater 19 is provided in the hydraulic oil tank, and an oil pan heater 20 is provided in the engine oil pan. Therefore, in the embodiment of the present invention, the distribution valve 4 is used, which has 4 water outlets on the first cavity 10, and is connected to the water inlets of the fuel tank heater 17, the battery heater 18, the hydraulic tank heater 19 and the oil pan heater 20; similarly, the second cavity 11 has 4 water inlets respectively connected with the water outlets of a fuel tank heater 17, a battery heater 18, a hydraulic oil tank heater 19 and an oil pan heater 20.

In an embodiment of the invention, a first temperature sensor 16 is provided in the fuel tank 5 for monitoring the fuel temperature in the fuel tank 5. Meanwhile, a second temperature sensor is arranged in the hydraulic oil tank, so that the temperature in the hydraulic oil tank can be monitored. And a third temperature sensor is arranged on the battery box, so that the temperature of the battery box can be monitored. And a fourth temperature sensor is arranged on the oil pan, so that the temperature of the oil pan can be monitored.

The first ball valve 12, the second ball valve 13, the fuel heater 3, and the respective sensors may be electrically connected to the controller, thereby facilitating control.

By utilizing the preheating system provided by the embodiment of the invention, cooling water in an engine water tank 2 enters an engine 1, then the cooling water in the engine 1 enters a fuel heater 3 for heating, the heated cooling water is divided to enter each heating execution device, and each heating device heats parts needing to be preheated on a walking power station; and the cooling water flowing through each heating execution device flows back to the engine after being subjected to flow concentration to preheat the engine, then flows out of the engine, forms a closed heating circulation loop according to the flowing direction, and continuously heats all parts until the parts are heated to a set temperature. According to the scheme, all the parts are preheated by cooling water, and compared with the prior art, the preheating effect is better, meanwhile, the method has better universality, can reduce danger, and is safe and reliable.

In a second aspect, in an embodiment of the invention, there is also provided a method of pre-heating a walking power station with the proposed pre-heating system, the method comprising:

firstly, filling the engine water tank 2 with cooling water, enabling the cooling water in the engine water tank 2 to flow into the engine 1 from the first water inlet 6 of the engine 1 through a pipeline, and continuing to add the cooling water into the engine water tank 2 until the engine water tank is full.

Then, the first ball valve 12 and the second ball valve 13 are opened.

Then, the fuel heater 3 is started, the oil pump inside the fuel heater 3 sucks oil from the fuel tank 5, and the fuel heater 3 starts to operate. In the case where the fuel filter 15 having a heating function is provided between the three-way pipe 14 and the fuel heater 3, the fuel is preheated before entering the fuel heater 3.

Then, the cooling water in the engine 1 enters the fuel heater 3 for heating, and the heated cooling water enters the first cavity 10 of the distribution valve 4 for splitting and then enters each heating execution device. Such as a fuel tank heater 17, a battery heater 18, a hydraulic tank heater 19 and an oil pan heater 20, the fuel tank, and the battery, the hydraulic tank and the oil pan of the walking power station, respectively, can be heated.

The cooling water passing through each heating actuator flows back to the second cavity 11 of the distribution valve 4 through a pipeline, merges, and then flows back to the engine 1 through the first water return port 8 through the second ball valve 13 to preheat the engine.

The cooling water then flows out of the second water outlet 9 of the engine 1 again, and forms a heating closed loop according to the above-mentioned cooling water flow manner, as indicated by the arrow in fig. 1, so as to continuously heat the components of the engine.

In embodiments of the present invention, the timing and when to stop heating may be controlled as follows.

The heating time of the fuel heater can be controlled by using a timer on the console, and when the fuel heater runs for the set heating time, the fuel heater is automatically cut off, and heating is stopped.

Or when the fuel oil heater does not reach the set heating time, a set temperature is correspondingly set for each temperature sensor, and when the temperature sensor reaches the corresponding set temperature, the heating of the part corresponding to the temperature sensor is stopped. For example, if the set temperature of the first temperature sensor is set to 20 ℃, the cooling water stops heating the fuel tank when the temperature of the first temperature sensor reaches 20 ℃. Similarly, separate heating of the battery, the hydraulic oil tank and the oil pan may also be achieved. Different values can be set for the set temperature aiming at different temperature sensors, so that the temperature of the whole system is not higher. When the temperature of all the temperature sensors reaches the set temperature, the fuel oil heater is cut off, and heating is stopped. Thereby avoiding the heating medium of the system from being overheated due to the overlong heating time.

After the heating is stopped, the first ball valve 12 and the second ball valve 13 are closed. Then the engine can be started to make the walking power station enter into a working state.

Compared with the heating method used in the prior art, the preheating method of the walking power station provided by the embodiment of the invention has the advantages that after the cooling water is heated by the fuel oil heater, all parts needing to be preheated on the whole walking power station are preheated by the cooling water instead of flame heating, ether heating and the like, so that the preheating effect is good, the universality is better, the safety is higher, and the method is more suitable for the working environment of alpine and extremely cold regions.

In a third aspect, the invention also provides a walking power station, which comprises the provided preheating system of the walking power station and is preheated by the provided method. Compared with the prior art, the walking power station has a good preheating effect and can adapt to the working environment of high-cold and extremely-cold areas.

The above examples are only preferred embodiments of the present invention, it should be noted that: it will be apparent to those skilled in the art that various modifications and equivalents can be made without departing from the spirit of the invention, and it is intended that all such modifications and equivalents fall within the scope of the invention as defined in the claims.