Latest revision as of 23:34, 1 February 2021

Abstract

Industrial pipes conveying fluid in the long process will produce dirt, which affects the efficiency of transmission. This paper presents a design applicable to pipeline clean-up program. The use of high pressure rotating nozzle head is designed to use high-pressure water jet to clean up the striking force pipeline. This paper also proposes a clamping force relies on two cams to constrain pipes. The coordination with the two cams control the speed and mode of high-pressure pipes to to apply to different pipe scale. And the design of adaptive spring system accommodates different diameter high-pressure transmission pipes. Experimental results demonstrate the effectiveness of pipeline cleaning device based on high pressure water jet. Introduction Pipeline in the chemical business has been very widely used, mainly used to transport chemical raw materials and chemical liquid. The long-time delivery will lead to the chemical liquid remaining in the pipeline, which greatly reduces the effective portion of the pipeline, seriously affects the transmission efficiency and increases costs, so that the pipelines need to clean in times. According to the current domestic and international existing high-pressure water jet control scheme, this paper proposes a high-pressure water jet pipe cleaning solution for factories. The use of high pressure rotating nozzle head is designed to use high-pressure water jet to clean up the striking force pipeline. The coordination with the two cams control the speed and mode of high-pressure pipes to apply to different pipe scale. And the design of adaptive spring system accommodates different diameter high-pressure transmission pipes. The device is designed to solve the inconvenience to clean up the vertical pipe, and the problems of horizontal pipes’ incomplete clean. Overall high-pressure injection system design and demonstration. According to the equation 0.745 F q p  about water jet (q is the flow per minute through the water, unit L / min, p is the pressure of the water jet, unit Mpa). The design specifications required of climbing height lead to calculate the pressure and flow pressure, and then adjust the high-pressure pipe nozzle spray angle to achieve the best cleaning effect. Using high-pressure rotating nozzle head, followed by a row of nozzle orifices with a set angle trunk, high-pressure hose connected to the tail through thread. Legs and high pressure nozzle body joints using a torsion spring. The upper legs fit with a large number of small roller. When facing the diameter transformation, torsion springs compress, so that the legs can be shorter to adjust the diameter changing pipeline. The model of high-pressure rotating nozzle head shows in figure 1. 5th International Conference on Information Engineering for Mechanics and Materials (ICIMM 2015) © 2015. The authors Published by Atlantis Press 169 Fig.1 High-pressure rotating nozzle head model Whether the high pressure hose can go through the variable diameter pipeline, the key point is the choice of torsion stiffness. Figure 2 shows some parameters of a torsion spring in large diameter pipe to a small diameter pipe transition state of motion. The analysis of Adams in which the transition from the high-pressure nozzle is designed to process large diameter pipes of small diameter, the role of time and the tail thrust related to the relatively short duration of action. So you can draw a conclusion that the designs of high pressure nozzle thrust can go through varying-diameter pipelines. (a) Torsion spring x direction velocity (b) Torsion spring deformation (c) Torsion spring torque diagram Fig.2 Torsion spring in the variable diameter pipeline motion state diagram To achieve climbing height, high-pressure rotating nozzle head needs to overcome its own gravity and hose gravity. According to 0.745 F q p  , get a group of theoretical value of the pressure and flow rate, the relationship shown in Figure 3. And then according to the theoretical value for the selected motor, and finally a combination of a high pressure injection control system is completed. Fig.3 Water jets striking force ,pressure and flow diagrams Design and implementation of high-pressure hose’s speed-control mechanism Thread screw goes through the hole between the frame and the support plate on the threaded connection. Since the box is fixed, when knobbing screw thread, the thread-support plate will move along the direction of the screw. There are two limit stops on the front end of the movement plate, thereby pressing the spring and the movement plate. The roller mounting shaft passing through the

Original document

The different versions of the original document can be found in:

• http://dx.doi.org/10.2991/icimm-15.2015.33 under the license https://creativecommons.org/licenses/by-nc

• https://download.atlantis-press.com/article/25525.pdf

• https://www.atlantis-press.com/proceedings/icimm-15/25525,

https://academic.microsoft.com/#/detail/1874933590 under the license cc-by-nc