Water jet water column impact pressure intensity determination method

Abstract

The invention provides a water jet water column impact pressure intensity determination method. The method comprises the following steps: S1, constructing a water jet water column impact model; s2, the stress area of the impact force sensor is determined, and jet flow parameters are set; s3, a nozzle is controlled to output water jet to the impact force sensor according to the set jet flow parameters, and the current impact force value output by the impact force sensor is obtained; s4, determining the water jet impact pressure according to the impact force value and the stress area of the impact force sensor, and substituting the impact pressure into the water jet water column impact model to determine the coefficient of the water jet water column impact model; s5, determining flushing parameters of the to-be-flushed equipment, and substituting the flushing parameters into the water jet water column impact model to determine the impact pressure intensity of the water jet water column received by the to-be-flushed equipment, through the method, the flushing effect is ensured, meanwhile, no additional damage is caused to the to-be-flushed equipment, no additional test needs to be carried out on the to-be-flushed equipment on site, and the cost is reduced. And the efficiency is ensured.

Description

Technical Field

[0001] The present invention relates to a method for determining flushing pressure, and in particular to a method for determining the impact pressure of a water jet water column. Background Art

[0002] High-pressure water jet technology is widely used in industrial cleaning, surface treatment and other fields. Its core lies in controlling the impact pressure of the water column by adjusting the jet parameters (such as nozzle diameter, outlet water pressure, jet angle, etc.).

[0003] However, existing methods mostly rely on empirical formulas or single parameter adjustments, and lack quantitative analysis of the synergistic effects of multiple parameters, resulting in low efficiency and insufficient precision in practical applications; and in the field of high-pressure cleaning or cutting, there is a problem that the water column impact pressure is not large enough, resulting in poor cleaning or cutting effects, but blindly increasing the pressure will cause additional damage to the object being cleaned.

[0004] Therefore, in order to solve the above technical problems, it is urgent to propose a new technical means. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a method for determining the impact pressure of a water jet water column, by determining the flushing parameters of the equipment to be flushed on site, including the flushing angle, jet distance and outlet pressure, and then quickly determining the pressure of the water jet water column impact received by the flushing equipment under the flushing parameters based on these flushing parameters, thereby facilitating the adjustment of the flushing parameters to meet the requirements of the equipment to be flushed, ensuring the flushing effect without causing additional damage to the flushing equipment, and eliminating the need for additional testing on site of the equipment to be flushed, thereby ensuring efficiency.

[0006] The present invention provides a method for determining the impact pressure of a water jet water column, comprising the following steps:

[0007] S1. Construct a water jet impact model;

[0008] S2. Determine the force area of the impact force sensor and set the jet parameters;

[0009] S3. To set the jet parameters to control the nozzle to output a water jet to the impact force sensor, and obtain the impact force value output by the current impact force sensor;

[0010] S4. Determine the water jet impact pressure by the impact force value and the force area of the impact force sensor, and substitute the impact pressure into the water jet water column impact model to determine the coefficient of the water jet water column impact model;

[0011] S5. Determine the flushing parameters of the equipment to be flushed, and substitute the flushing parameters into the water jet water column impact model to determine the impact pressure of the water jet water column on the flushing equipment.

[0012] Furthermore, the jet parameters include jet distance, outlet water pressure and jet angle.

[0013] Furthermore, the water jet water column impact model is specifically as follows:

[0014]

[0015] Where: T p represents the water impact pressure; θ represents the jet angle, L represents the jet distance, P represents the water outlet pressure, and A, B1, C1, D1, B2, C2, D2, B3, C3, and D3 are all constant coefficients.

[0016] Furthermore, the impact pressure of the water jet is determined based on the impact force value and the force-bearing area of the impact force sensor:

[0017] T p =FS, where: T p It represents the impact pressure of water flow, F represents the pressure value output by the impact force sensor, and S represents the force-bearing area of the impact force sensor.

[0018] The beneficial effects of the present invention are as follows: through the present invention, by determining the flushing parameters of the equipment to be flushed on site, including the flushing angle, jet distance and water outlet pressure, the pressure of the water jet water column impact received by the flushing equipment under the flushing parameters is quickly determined based on these flushing parameters, thereby facilitating the adjustment of the flushing parameters to meet the requirements of the equipment to be flushed, ensuring the flushing effect without causing additional damage to the flushing equipment, and eliminating the need for additional testing on site of the equipment to be flushed, thereby ensuring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 Flowchart of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below:

[0022] The present invention provides a method for determining the impact pressure of a water jet water column, comprising the following steps:

[0023] S1. Construct a water jet water column impact model; specifically:

[0024] The specific model of water jet water column impact is:

[0025]

[0026] Where: T prepresents the water impact pressure; θ represents the jet angle, L represents the jet distance, P represents the water outlet pressure, and A, B1, C1, D1, B2, C2, D2, B3, C3, and D3 are all constant coefficients.

[0027] S2. Determine the force area of the impact force sensor and set the jet parameters; wherein the jet parameters include jet distance, outlet water pressure and jet angle

[0028] S3. To set the jet parameters to control the nozzle to output a water jet to the impact force sensor, and obtain the impact force value output by the current impact force sensor;

[0029] S4. Determine the water jet impact pressure using the impact force value and the force-bearing area of the impact force sensor, and substitute the impact pressure into the water jet water column impact model to determine the coefficient of the water jet water column impact model; as in the above formula, each coefficient is uncertain, so through steps S2-S4, the impact pressure received by the equipment to be flushed (using the impact force sensor as a substitute) can be determined by experiment, and then substituted into formula (1). Formula (1) has 10 constant coefficients, so 10 experiments are required to form 10 equations, and then solve them to obtain the specific values of each coefficient, so the expression of the water jet water column impact model can be determined;

[0030] The impact pressure of the water jet is determined by the impact force value and the force-bearing area of the impact force sensor:

[0031] T p =FS, where: T p It represents the impact pressure of water flow, F represents the pressure value output by the impact force sensor, and S represents the force-bearing area of the impact force sensor.

[0032] It should be noted that the impact force sensor uses an existing resistance strain gauge. By building a corresponding circuit, such as a resistance voltage divider circuit, the resistance strain gauge will change its resistance when it receives an impact force, and its voltage divider value will change. The change in the voltage divider value is the change in pressure, thereby determining the pressure value. This is the existing technology.

[0033] S5. Determine the flushing parameters of the equipment to be flushed, and substitute the flushing parameters into the water jet water column impact model to determine the impact pressure of the water jet water column received by the flushing equipment. In the actual flushing equipment, due to the layout environment of the equipment, its jet distance and jet angle (i.e., flushing angle) need to be adjusted according to the actual situation. If there is no process of the present invention, in practice, it is necessary to arrange corresponding sensors on different equipment, conduct experiments, and then make judgments. This method is extremely costly, inefficient, and wastes manpower. Therefore, under the present invention, the jet distance can be determined on site. The distance and jet angle of the nozzle are known, and the outlet pressure of the nozzle can be detected or determined. Then, the impact pressure of the water jet column that the current flushing equipment is subjected to can be directly calculated by formula (1), thereby judging whether the current pressure can meet the actual needs, such as whether the pressure can meet the cleaning requirements, or whether the pressure can cause damage to the flushing equipment. For example, if there is a coating on the surface of the equipment, if the pressure is too high, the coating will be damaged, thus eliminating the need for on-site experiments (if experiments are conducted on-site, the manpower and material costs are quite huge if they are conducted at each site). Therefore, through the above method, by determining the flushing parameters of the equipment to be flushed, including the flushing angle, jet distance and outlet pressure, the pressure of the water jet column impact received by the flushing equipment under the flushing parameters can be quickly determined based on these flushing parameters, thereby facilitating the adjustment of the flushing parameters to meet the requirements of the equipment to be flushed, ensuring the flushing effect without causing additional damage to the flushing equipment, and eliminating the need for additional on-site experiments on the equipment to be flushed, thereby ensuring efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for determining the impact pressure of a water jet, characterized in that: The following steps are involved: S1. Construct a water jet impact model; S2. Determine the force area of the impact force sensor and set the jet parameters; S3. To set the jet parameters to control the nozzle to output a water jet to the impact force sensor, and obtain the impact force value output by the current impact force sensor; S4. Determine the water jet impact pressure by the impact force value and the force area of the impact force sensor, and substitute the impact pressure into the water jet water column impact model to determine the coefficient of the water jet water column impact model; S5. Determine the flushing parameters of the equipment to be flushed, and substitute the flushing parameters into the water jet water column impact model to determine the impact pressure of the water jet water column on the flushing equipment.

2. The method for determining the impact pressure of a water jet according to claim 1, characterized in that: The jet parameters include jet distance, outlet water pressure and jet angle.

3. The method for determining the impact pressure of a water jet according to claim 2, characterized in that: The specific model of water jet water column impact is: Where: T p represents the water impact pressure; θ represents the jet angle, L represents the jet distance, P represents the water outlet pressure, and A, B1, C1, D1, B2, C2, D2, B3, C3, and D3 are all constant coefficients.

4. The method for determining the impact pressure of a water jet according to claim 1, characterized in that: The impact pressure of the water jet is determined by the impact force value and the force-bearing area of the impact force sensor: T p =FS, where: T p It represents the impact pressure of water flow, F represents the pressure value output by the impact force sensor, and S represents the force-bearing area of the impact force sensor.

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