Thus, by adjusting the size of the pulse width, the chemical injection rate could possibly be varied. For the maintenance and calibration of your chemical injection methods, we provide the necessary documentation, certification and proof of calibration for high quality audits, making certain full traceability and compliance with the relevant industry requirements. Epscan’s unique strategy to the chemical injection market has put us above the competitors.
Brief Description of Drawings Figure 1 is a schematic of management system for a chemical injection pump according to one embodiment of the invention. Their major function is to inject relatively small quantities of chemical substances into course of streams to enable the production and processing of petroleum merchandise.
The Flow Totalizer Transmitter related to a 3rd-get together turbine circulate meter (offered individually), supplies the flexibility to seize the instantaneous circulate price and manage the circulate of chemical injection. The thermodynamic flowmeter has a wide measurement vary, which is determined by adjusting the coefficient of amplification manually. In accordance with vary of RRV injection rates, the measurement scale was specified and the calibration curve was obtained as shown in Figure 7.
When retrofitted with the management system 10 as proven in Figure 3, the diaphragm meeting 29 is changed by the actuator 22 such that the pump 12 is no longer powered by pressurized gas, and is as an alternative powered by electricity. Figures 10(a) to (c) is a flowchart showing the steps in a chemical injection methodology programmed into a controller of chemical injection system. A CAIVAN_LAW \1 6 Figure 7 is a photograph of a second embodiment of an actuator meeting of the management system mounted to the chemical injection pump rather than the diaphragm meeting of the pump. Figure three is a photograph of an actuator assembly of the management system mounted to the chemical injection pump instead of a diaphragm meeting of the pump.
Epscan has the largest diversity of chemical injection pump options within the business. All features of builds from conception to completed product, are carried out in-house at the Dawson Creek facility.
Accoording to Equation , the injection fee of every RRV should range from zero.1 to 33.three mL/min, which could cover most spraying functions. The RRV is powered by a PWM signal at a frequency of 100 HZ generated by a FPGA controller. The pulse width during which the RRV remains open in a single PWM period determines the injection time and therefore the injection quantity of chemical.
Although this thermodynamic flowmeter was unbiased of chemical viscosity, it was affected by the thermal conductivity of the liquid medium. Thus, earlier than a different type of chemical could be utilized, a particular calibration is required prematurely. Empirically, the tractor velocity v ranged from 6 km/h to 10 km/h, chemical per hectare needed within the field (W/S) was assumed from 20 mL/ha to 4000 mL/ha.
In standard operation, the pump 12 is powered by the diaphragm that moves beneath strain provided by natural fuel from the nicely 14 and drives the pump rod, thereby injecting a measured quantity of methanol into the well 14. The fuel used to activate the diaphragm is then vented to the ambiance and the return spring returns the pump rod again to its original place.