养殖沼气发电机组各缸供气供油不均匀的问题

发布时间:2024-03-07 发布人:中拓 发布来源:http://www.diger-tech.com/

发电机组各缸的供油量如果不均匀(如有的缸供油量过大,有的缸供油量过小),会直接影响发动机工作的平稳性。可拆下喷油泵在试验台上检查调整。但是,如果没有试验台而又必须进行供油量不均的检查,也可对被怀疑缸的供油量进行粗略的检查。检查调整方法:

If the fuel supply of each cylinder in the generator set is uneven (such as some cylinders having excessive fuel supply, while others have insufficient fuel supply), it will directly affect the smoothness of engine operation. The fuel injection pump can be removed and checked and adjusted on the test bench. However, if there is no test bench and it is necessary to check for uneven fuel supply, a rough inspection of the suspected cylinder's fuel supply can also be carried out. Check and adjust the method:

① 准备两个玻璃量筒待用。如果一时找不到量筒,也可用两个相同的小瓶代替。

① Prepare two glass measuring cylinders for use. If the measuring cylinder cannot be found at the moment, two identical small bottles can also be used as substitutes.

② 拆下供油量过大(或过小)一缸与喷油器连接的高压油管接头。

② Remove the high-pressure oil pipe joint that connects the cylinder with the fuel injector due to excessive (or insufficient) fuel supply.

③ 再拆下供油量正常一缸与喷油器连接的高压管接头。

③ Remove the high-pressure pipe joint that connects the normal fuel supply cylinder to the fuel injector.

杏彩·体育

④ 将两个油管端头分别插入两个量筒(或小瓶)内。

④ Insert the two oil pipe ends into two measuring cylinders (or small bottles) respectively.

⑤ 用起动机带发动机转动使喷油泵泵油。

⑤ Rotate the engine with the starter motor to pump oil from the fuel injection pump.

⑥ 当量筒(或小瓶)内有一定的柴油时,将量筒放在水平台上比较油量的多少,便可确定供油量是否过大或过小。如果用小瓶代替,可对其进行称量比较。可改变喷油泵油量调节拉杆(即齿杆)上拔叉(或齿圈)的相对位置进行调整。对P_型泵可通过转动法兰套筒进行调整。

⑥ When there is a certain amount of diesel in the equivalent cylinder (or small bottle), place the measuring cylinder on a horizontal table to compare the amount of oil and determine whether the fuel supply is too large or too small. If a small bottle is used instead, it can be weighed and compared. The relative position of the fork (or ring gear) on the fuel injection pump oil quantity adjustment rod (i.e. gear rod) can be adjusted. The P_ type pump can be adjusted by rotating the flange sleeve.

在发电机组操作过程中,根据经验,应特别注意以下几点:

During the operation of the generator set, based on experience, special attention should be paid to the following points:

① 松开拔叉(或齿圈、或法兰套筒)的固定螺钉,只需微量移动便可改变供油量,切不可移动过大,否则难以调整准确(如有必要,可先标记出初始位置,便于对照)。

① Loosen the fixing screws of the fork (or ring gear, or flange sleeve), and the fuel supply can be changed by moving it slightly. Do not move it too much, otherwise it is difficult to adjust accurately (if necessary, mark the initial position first for comparison).

② 每次调整后,必须确认固定螺钉的拧紧度。

② After each adjustment, the tightening degree of the fixing screws must be confirmed.

③ 在进行供油量的调整时,应确保油量不得高于标准供油量。这是因为调整是在低速下进行的,考虑到漏油等诸多因素的影响,此时允许有较大的不均匀度(30%),但高速时受节流作用等因素的影响,其允许不均匀度较小(3%)。如果在低速时的油量高于标准供油量,那么高速油量可能会有较大变化,甚超过额定供油量。

③ When adjusting the fuel supply, it should be ensured that the fuel supply does not exceed the standard fuel supply. This is because the adjustment is carried out at low speeds, taking into account the influence of various factors such as oil leakage, a significant unevenness (30%) is allowed at this time. However, at high speeds, due to factors such as throttling, the allowable unevenness is relatively small (3%). If the oil quantity at low speed is higher than the standard fuel supply, the oil quantity at high speed may have significant changes, even exceeding the rated fuel supply.

④ 如果在同一发动机上大供油量与小供油量相差较大,不要急于调整,可先将两分泵的出油阀对调安装,进行检查比较,这样做有时也可以改变供油量。若对调后没有改变供油量,则需对两分泵逐一进行调整。

④ If there is a significant difference between the large and small fuel supply on the same engine, do not rush to adjust. You can first swap and install the outlet valves of the two pumps for inspection and comparison. Sometimes, this can also change the fuel supply. If there is no change in the fuel supply after swapping, it is necessary to adjust the two pumps one by one.

⑤ 采用比较法调整供油量,操作必须谨慎细致

⑤ Using the comparative method to adjust fuel supply, the operation must be cautious and meticulous

截屏,微信识别二维码

  • 2024-07-19