Intelligent conveying device based on automatic frequency conversion efflux pump

Abstract

An intelligent conveying device based on an automatic frequency conversion efflux pump comprises the automatic frequency conversion efflux pump, and a first manual ball valve is arranged on an inlet pipeline of the automatic frequency conversion efflux pump. An electric valve, a first pressure sensor, a filter, a second pressure sensor and a first temperature sensor are sequentially arranged on a pipeline between the first manual ball valve and an inlet of the automatic frequency conversion efflux pump, and a blow-down valve is arranged on the filter. A third pressure sensor, a second temperature sensor, an intelligent dosimeter and a second manual ball valve are sequentially arranged on an outlet pipeline of the automatic frequency conversion efflux pump. By means of the automatic frequency conversion efflux pump, the operation frequency can be automatically adjusted according to the actual liquid amount, energy is effectively utilized, the energy utilization rate is improved, manual operation is reduced, operation risks are reduced, and safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying equipment, and particularly relates to an intelligent conveying device based on an automatic variable-frequency external transmission pump. Background Technique

[0002] In the process of oil and gas extraction, the treatment of fracturing flowback fluid is a key link. Traditional external transmission devices for fracturing flowback fluid have some limitations and deficiencies, which are mainly reflected in the following aspects: 1. Using a pump with a fixed frequency to handle the flowback fluid, since the pump cannot automatically adjust its operating speed according to actual needs, this results in a decrease in the pump efficiency when the liquid volume changes; 2. The monitoring of the device status relies on regular manual inspections and operations, lacking an intelligent adjustment mechanism, and it is impossible to achieve optimal energy utilization in different working states, resulting in energy waste; 3. Manual operation of the external transmission device poses potential safety hazards, especially in high-pressure and high-temperature environments, threatening the safety of operators. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an intelligent conveying device based on an automatic variable-frequency external transmission pump with high conveying efficiency, high energy utilization rate, and safety and reliability.

[0004] The technical solution adopted to solve the above technical problem is: an intelligent conveying device based on an automatic variable-frequency external transmission pump, including an automatic variable-frequency external transmission pump. A first manual ball valve is arranged on the inlet pipeline of the automatic variable-frequency external transmission pump. An electric valve, a first pressure sensor, a filter, a second pressure sensor, and a first temperature sensor are sequentially arranged on the pipeline between the first manual ball valve and the inlet of the automatic variable-frequency external transmission pump. A drain valve is arranged on the filter. A third pressure sensor, a second temperature sensor, an intelligent dosimeter, and a second manual ball valve are sequentially arranged on the outlet pipeline of the automatic variable-frequency external transmission pump.

[0005] As a preferred technical solution, a third manual valve 4 is connected in parallel to the electric valve.

[0006] As a preferred technical solution, a branch pipeline is connected to the outlet of the automatic variable-frequency external transmission pump through a safety valve, and the branch pipeline is communicated with the inlet pipeline of the electric valve.

[0007] As a preferred technical solution, a first stop valve is connected in series on the branch pipeline.

[0008] As a preferred technical solution, a second stop valve is arranged upstream of the third pressure sensor on the outlet pipeline of the automatic variable-frequency external transmission pump.

[0009] The beneficial effects of the utility model are as follows:

[0010] The utility model can automatically adjust the running frequency according to the actual liquid volume through an automatic variable-frequency external transmission pump, effectively utilize energy, improve the energy utilization rate, reduce manual operation, lower the operation risk, and enhance the safety. The automatic variable-frequency external transmission pump automatically adjusts the running state of the pump according to the data collected by the second pressure sensor, the third pressure sensor and the intelligent meter, improving the use efficiency of the pump.

[0011] The utility model monitors the running temperature of the automatic variable-frequency external transmission pump through the first temperature sensor and the second temperature sensor, plays a protective role for the automatic variable-frequency external transmission pump, reduces the pump failure frequency, and prolongs the service life of the pump.

[0012] The utility model has an automatic protection function, automatically triggers the safety valve in case of emergency to prevent the pump body from being damaged. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the utility model.

[0014] In the figure: storage tank 1, first manual ball valve 2, electric valve 3, third manual valve 4, first pressure sensor 5, drain valve 6, filter 7, first stop valve 8, second pressure sensor 9, first temperature sensor 10, automatic variable-frequency external transmission pump 11, safety valve 12, second stop valve 13, third pressure sensor 14, second temperature sensor 15, intelligent meter 16, second manual ball valve 17, liquid storage tank 18. Detailed Embodiment

[0015] The following further details the utility model in conjunction with the drawings and embodiments, but the utility model is not limited to the following embodiments.

[0016] In Figure 1 In this embodiment, an intelligent conveying device based on an automatic variable-frequency external transmission pump is used to convey the fracturing flowback fluid from the storage tank 1 to the liquid storage tank 18. The intelligent conveying device based on the automatic variable-frequency external transmission pump includes a first manual ball valve 2, an electric valve 3, a first pressure sensor 5, a filter 7, a second pressure sensor 9, a first temperature sensor 10, an automatic variable-frequency external transmission pump 11, a second stop valve 13, a third pressure sensor 14, a second temperature sensor 15, an intelligent meter 16, a second manual ball valve 17, a first stop valve 8, and a safety valve 12.

[0017] A first manual ball valve 2 is installed on the inlet pipeline of the automatic variable-frequency external transmission pump 11. An electric valve 3, a first pressure sensor 5, a filter 7, a second pressure sensor 9, and a first temperature sensor 10 are sequentially installed on the pipeline between the first manual ball valve 2 and the inlet of the automatic variable-frequency external transmission pump 11. A drain valve 6 is installed on the filter 7. A third manual valve 4 is connected in parallel with the electric valve 3 and is used when the electric valve 3 fails to ensure normal external transmission work and perform external transmission maintenance. The first pressure sensor 5 and the second pressure sensor 9 are used to determine whether the filter 7 is blocked. When the data collected by the first pressure sensor 5 > the data collected by the second pressure sensor 9, it is determined that the filter 7 is blocked and sewage discharge treatment is required. The first temperature sensor 10 is used to monitor the temperature of the liquid input into the pump body.

[0018] On the outlet pipeline of the automatic variable-frequency external transmission pump 11, a second globe valve 13, a third pressure sensor 14, a second temperature sensor 15, an intelligent flowmeter 16, and a second manual ball valve 17 are sequentially installed along the liquid flow direction. The third pressure sensor 14 is used to monitor the change of the output pressure. The intelligent flowmeter 16 is used to monitor the flow change of the output pipeline in real time. The second temperature sensor 15 is used to monitor the temperature of the externally transmitted liquid.

[0019] A branch pipeline is connected to the outlet of the automatic variable-frequency external transmission pump 11 through a safety valve 12. The branch pipeline is communicated with the inlet pipeline of the electric valve 3. A first globe valve 8 is connected in series on the branch pipeline. When the pressure of the automatic variable-frequency external transmission pump 11 exceeds the set threshold, the safety valve 12 is opened, and the externally discharged liquid flows back to the inlet pipeline of the electric valve 3 through the branch pipeline.

[0020] The intelligent flowmeter 16, the first pressure sensor 5, the second pressure sensor 9, the third pressure sensor 14, the first temperature sensor 10, and the second temperature sensor 15 are connected to the automatic variable-frequency external transmission pump 11 through wires.

[0021] The first manual ball valve 2 and the second manual ball valve 17 are default to be in the open state during normal external transmission to allow the fluid to pass through the pipeline smoothly and are used in cooperation with the electric valve or the third manual ball valve during pipeline maintenance or cleaning.

[0022] When the data collected by the first pressure sensor 5 > the data collected by the second pressure sensor 9, the electric valve 3 is closed, and the filter 7 is drained through the drain valve 6. The second pressure sensor 9 and the third pressure sensor 14 are used to monitor the pressure changes at the input and output of the automatic variable-frequency external transmission pump 11. The automatic variable-frequency external transmission pump 11 automatically adjusts the operating frequency according to the pressure difference to optimize the performance and efficiency of the pump. At the same time, the automatic variable-frequency external transmission pump 11 automatically adjusts the frequency according to the flow rate change collected by the intelligent flow meter 16 and the actual flow rate demand to ensure the stability of the external transmission flow rate. The first temperature sensor 10 and the second temperature sensor 15 are used to monitor the temperature changes at the input and output of the automatic variable-frequency external transmission pump 11. When the second temperature sensor 15 detects that the temperature is higher than the first temperature sensor 10, the automatic variable-frequency external transmission pump 11 adjusts the external transmission frequency to ensure the normal operation of the pump body. When the pressure of the automatic variable-frequency external transmission pump 11 exceeds the set threshold, the safety valve 12 is opened, and the discharged liquid flows back to the inlet pipeline of the electric valve 3 through the branch pipeline. When the pressure data collected by the first pressure sensor 5 is greater than the set threshold, the electric valve 3 is closed to make the reflux liquid flow back to the storage tank 1.

Claims

1. An intelligent conveying device based on an automatic variable-frequency external transmission pump, comprising an automatic variable-frequency external transmission pump, characterized in that: A first manual ball valve is provided on the inlet pipeline of the automatic variable-frequency export pump. An electric valve, a first pressure sensor, a filter, a second pressure sensor, and a first temperature sensor are sequentially arranged on the pipeline between the first manual ball valve and the inlet of the automatic variable-frequency export pump. A drain valve is provided on the filter. A third pressure sensor, a second temperature sensor, an intelligent dosimeter, and a second manual ball valve are sequentially arranged on the outlet pipeline of the automatic variable-frequency export pump.

2. The intelligent conveying device based on an automatic variable-frequency export pump according to claim 1, characterized in that: A third manual valve is connected in parallel with the electric valve.

3. The intelligent conveying device based on an automatic variable-frequency external pumping unit according to claim 1, wherein: A branch pipeline is connected to the outlet of the automatic variable-frequency export pump through a safety valve, and the branch pipeline is communicated with the inlet pipeline of the electric valve.

4. The intelligent conveying device based on an automatic variable-frequency export pump according to claim 3, wherein: A first stop valve is connected in series on the branch pipeline.

5. The intelligent conveying device based on an automatic variable-frequency export pump according to claim 1, wherein: A second stop valve is provided upstream of the third pressure sensor on the outlet pipeline of the automatic variable-frequency export pump.

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