Liquid supply device of liquid supply vehicle

Abstract

The utility model relates to a liquid supply device of a liquid supply vehicle, and relates to the technical field of well cementation operation. The liquid supply device of the liquid supply vehicle comprises a water tank, a burner and a heating pipeline, one end of the heating pipeline is connected with the burner, the burner is located outside the water tank, the heating pipeline penetrates into the water tank, and the end, away from the burner, of the heating pipeline is located outside the water tank. And gas generated by the burner heats the heating pipeline and heats the liquid in the water tank. The combustion engine generates high-temperature flue gas by combusting diesel oil, the temperature of the heating pipeline is increased after the high-temperature flue gas flows into the heating pipeline, and the heating pipeline penetrates into the water tank and can heat liquid in the water tank, so that the temperature of the liquid in the water tank is increased; the conveyed liquid can ablate ice slag in a water pump and a pipeline, freezing in the water pump and the pipeline is avoided, and it is guaranteed that well cementation operation is conducted smoothly under the low-temperature condition.

Description

Technical Field

[0001] This utility model relates to the field of cementing operation technology, and in particular to a fluid supply vehicle fluid supply device. Background Technology

[0002] Cementing is a construction operation that involves running casing into a well and injecting cement into the annular space between the wellbore and the casing. It is an essential and indispensable part of the drilling and completion process, and it includes running casing and injecting cement. Cementing fluid supply trucks are important equipment in oil and gas field cementing, and their main purpose is to provide the industrial water needed for cement slurry mixing to cement trucks on a timed and quantitative basis.

[0003] Chinese patent CN101780779B discloses a multi-functional liquid supply vehicle for oilfield cementing. One vehicle can complete the support tasks for all cementing auxiliary facilities of a well, reducing the number of trips to the well and lowering cementing costs. However, in winter when the temperature is low, ice crystals or freezing can easily form inside the water pump and pipelines, which greatly affects the efficiency of cementing operations. Utility Model Content

[0004] This utility model provides a liquid supply vehicle and liquid supply device that can use the flue gas generated by the burner to heat the liquid in the water tank. By supplying hot water, it avoids the formation of ice or freezing inside the water pump and pipeline, and ensures the smooth progress of cementing operations under low temperature conditions.

[0005] This utility model provides a liquid supply vehicle liquid supply device, including a water tank, a burner and a heating pipe. One end of the heating pipe is connected to the burner, the burner is located outside the water tank, the heating pipe extends into the interior of the water tank, and the end of the heating pipe away from the burner is located outside the water tank. The gas generated by the burner heats the heating pipe and raises the temperature of the liquid in the water tank.

[0006] In one embodiment, the bottom of the water tank is provided with a water outlet pipe, and the end of the water outlet pipe away from the water tank is connected to a centrifugal pump.

[0007] In one embodiment, at least two centrifugal pumps are provided, with at least one centrifugal pump on each side of the liquid supply vehicle.

[0008] In one embodiment, the heating conduit includes a first branch pipe leading to the centrifugal pump.

[0009] In one embodiment, the liquid supply vehicle's liquid supply device further includes a hydraulic oil tank, and the centrifugal pump is connected to the hydraulic oil tank via a hydraulic pipeline.

[0010] In one embodiment, the fluid supply vehicle's fluid supply device further includes a hydraulic oil cooler, which is connected to the hydraulic oil tank.

[0011] In one embodiment, the liquid supply vehicle's liquid supply device further includes a plunger pump, and the heating pipe includes a second branch pipe leading to the plunger pump.

[0012] In one embodiment, the water tank is further provided with an inlet pipe, and the inlet pipe is provided with an inlet valve.

[0013] In one embodiment, an inverter is also provided outside the water tank, and the inverter is connected to the burner.

[0014] In one embodiment, the water tank is provided with an overflow pipe inside.

[0015] Compared with the prior art, the advantages of this utility model are that the burner generates high-temperature flue gas by burning diesel oil. After the high-temperature flue gas flows into the heating pipe, the temperature of the heating pipe rises. Since the heating pipe runs through the inside of the water tank, it can heat the liquid in the water tank, thereby increasing the temperature of the liquid in the water tank. This allows the delivered liquid to melt the ice in the water pump and pipeline and prevent the water pump and pipeline from freezing inside, ensuring the smooth progress of cementing operations under low-temperature conditions. Attached Figure Description

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the liquid supply device of the liquid supply vehicle in an embodiment of this utility model;

[0018] Figure 2 This is a top view of the liquid supply device of the liquid supply vehicle in an embodiment of this utility model;

[0019] Figure 3 This is a front view of the liquid supply device of the liquid supply vehicle in an embodiment of this utility model;

[0020] Figure 4 This is a side view of the liquid supply device of the liquid supply vehicle in an embodiment of this utility model.

[0021] Figure label:

[0022] 1. Water tank; 2. Burner; 3. Heating pipe; 31. First branch pipe; 32. Second branch pipe; 4. Water outlet pipe; 51. Centrifugal pump; 52. Hydraulic oil tank; 53. Hydraulic oil radiator; 6. Piston pump; 7. Water inlet pipe; 8. Water inlet valve; 9. Inverter; 10. Overflow pipe. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 4As shown, a liquid supply vehicle of this utility model includes a water tank 1, a burner 2 and a heating pipe 3. One end of the heating pipe 3 is connected to the burner 2. The burner 2 is located outside the water tank 1. The heating pipe 3 extends into the interior of the water tank 1. The end of the heating pipe 3 away from the burner 2 is located outside the water tank 1. The gas generated by the burner 2 heats the heating pipe 3 and raises the temperature of the liquid in the water tank 1.

[0025] The burner 2 generates high-temperature flue gas by burning diesel fuel. The high-temperature flue gas flows into the heating pipe 3, which raises the temperature of the heating pipe 3. Since the heating pipe 3 penetrates into the water tank 1, it can heat the liquid in the water tank 1, thereby increasing the temperature of the liquid in the water tank 1. This allows the delivered liquid to melt ice in the water pump and pipeline and prevents the water pump and pipeline from freezing inside, ensuring the smooth progress of cementing operations under low temperature conditions.

[0026] In order to make the heat of the high-temperature flue gas more fully converted into the internal energy of the liquid in the water tank 1, the heating pipe 3 inside the water tank 1 should be set in a curved shape to ensure that there is sufficient contact area between the outer wall of the heating pipe 3 and the liquid inside the water tank 1. The heating pipe 3 should be set at a lower position inside the water tank 1 to ensure that the liquid inside the water tank 1 is heated more evenly.

[0027] After using the heating system, field tests showed that three cubic meters of water at 7°C can be heated to 30°C in 20 minutes, which meets the requirements of on-site cementing operations.

[0028] like Figure 1 and Figure 3 As shown, the bottom of the water tank 1 is equipped with a water outlet pipe 4, and the end of the water outlet pipe 4 away from the water tank 1 is connected to the centrifugal pump 51. After the centrifugal pump 51 is started, it can pump the liquid inside the water tank 1 through the water outlet pipe 4 to cement trucks and other locations. Because the liquid flowing through the centrifugal pump 51 has a high temperature, the centrifugal pump 51 can still ensure that no ice crystals are produced or the pump freezes during operation in cold winter periods. The high temperature of the liquid output by the centrifugal pump 51 also prevents the pipeline between the liquid supply truck and the cement truck from freezing.

[0029] like Figure 1 and Figure 2 As shown, there are two centrifugal pumps 51, one on each side of the liquid supply truck. Because there are centrifugal pumps 51 on both sides of the liquid supply truck, the cement truck can be easily connected to the liquid supply truck regardless of which side it is on. Furthermore, having two centrifugal pumps 51 ensures that if one centrifugal pump 51 malfunctions, the other centrifugal pump 51 can still guarantee the smooth progress of the cementing operation.

[0030] like Figure 1As shown, the heating pipe 3 includes a first branch pipe 31 leading to the centrifugal pump 51. The heating pipe 3 branches after exiting the water tank 1, one of which is the first branch pipe 31. After the high-temperature flue gas generated by the burner 2 heats the liquid in the water tank 1, it still maintains a high temperature. Since the flue gas generated by the burner 2 ultimately needs to be discharged into the atmosphere, in order to fully utilize the heat from the flue gas generated by the burner 2, a portion of the flue gas in the heating pipe 3 is directed to the centrifugal pump 51 through the first branch pipe 31 to heat and insulate the pump casing (not shown in the figure) and other parts of the centrifugal pump 51, further reducing the probability of ice crystals forming or freezing inside the centrifugal pump 51.

[0031] The flue gas in the first branch pipe 31 can preheat the centrifugal pump 51 before it starts, melting any ice that may be inside the centrifugal pump 51, so that the centrifugal pump 51 can operate more safely and stably.

[0032] The liquid supply device of the liquid supply vehicle in this embodiment also includes a hydraulic oil tank 52, and the centrifugal pump 51 is connected to the hydraulic oil tank 52 through a hydraulic pipeline. For liquid supply vehicles operating outdoors, obtaining a stable power supply is inconvenient. The centrifugal pump 51 is hydraulically driven rather than electrically driven, and can work by relying on the vehicle's own power without relying on an external power supply.

[0033] Furthermore, the fluid supply device of this embodiment also includes a hydraulic oil cooler 53, which is connected to the hydraulic oil tank 52. During operation, the hydraulic system is often accompanied by an increase in oil temperature. Increased oil temperature can lead to problems such as decreased oil viscosity, accelerated aging of rubber seals, reduced clearance or jamming between moving parts with different coefficients of thermal expansion in hydraulic components, and accelerated oil oxidation and deterioration. Therefore, a hydraulic oil cooler 53 is necessary to ensure the normal operation of the hydraulic system.

[0034] like Figure 1 As shown, the fluid supply device of this embodiment also includes a plunger pump 6, and the heating pipe 3 includes a second branch pipe 32 leading to the plunger pump 6. The plunger pump 6 is used for cementing and plugging operations. Before the plunger pump 6 starts working, the flue gas generated by the burner 2 is introduced into the plunger pump 6 through the second branch pipe 32, which can melt any ice that may be present inside the plunger pump 6, prevent the valves, valve seats and other components inside the plunger pump 6 from sticking together, and enable the plunger pump 6 to work smoothly.

[0035] In this embodiment, when the plunger pump 6 draws liquid from the water tank 1 for the plugging operation, the liquid also enters the plunger pump 6 through the second branch pipe 32. However, the second branch pipe 32 is not vented at this time. Through the control of relevant valves, it can prevent the liquid from flowing back into the burner 2.

[0036] like Figure 1As shown, the water tank 1 is also equipped with an inlet pipe 7, and an inlet valve 8 is installed on the inlet pipe 7. Water can be replenished into the water tank 1 through the inlet pipe 7 and the inlet valve 8 to ensure that the water level in the water tank 1 meets the needs of cementing operations. The water tank 1 is also equipped with an overflow pipe 10. When the water level in the water tank 1 exceeds the top of the overflow pipe 10, the overflow pipe 10 will drain the excess water to prevent the water level in the water tank 1 from becoming too high.

[0037] like Figure 1 As shown, an inverter 9 is also installed on the outside of the water tank 1, and the inverter 9 is connected to the burner 2. The inverter 9 can invert and boost the 24-volt voltage on the water supply truck to meet the ignition requirements of the burner 2.

[0038] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A liquid supply device for a liquid supply vehicle, characterized in that, The device includes a water tank, a burner, and a heating pipe. One end of the heating pipe is connected to the burner, which is located outside the water tank. The heating pipe extends into the interior of the water tank, with the end of the heating pipe furthest from the burner located outside the water tank. The gas generated by the burner heats the heating pipe and raises the temperature of the liquid in the water tank.

2. The liquid supply device for the liquid supply vehicle according to claim 1, characterized in that, The bottom of the water tank is provided with a water outlet pipe, and the end of the water outlet pipe away from the water tank is connected to a centrifugal pump.

3. The liquid supply vehicle liquid supply device according to claim 2, characterized in that, The centrifugal pump is provided in at least two, and at least one centrifugal pump is provided on each side of the liquid supply vehicle.

4. The liquid supply vehicle liquid supply device according to claim 2, characterized in that, The heating pipe includes a first branch pipe leading to the centrifugal pump.

5. The liquid supply vehicle liquid supply device according to claim 2, characterized in that, It also includes a hydraulic oil tank, and the centrifugal pump is connected to the hydraulic oil tank via hydraulic pipelines.

6. The liquid supply vehicle liquid supply device according to claim 5, characterized in that, It also includes a hydraulic oil cooler, which is connected to the hydraulic oil tank.

7. The liquid supply device for a liquid supply vehicle according to claim 1, characterized in that, It also includes a plunger pump, and the heating conduit includes a second branch pipe leading to the plunger pump.

8. The liquid supply device for the liquid supply vehicle according to claim 1, characterized in that, The water tank is also equipped with an inlet pipe, and the inlet pipe is equipped with an inlet valve.

9. The liquid supply device for a liquid supply vehicle according to claim 1, characterized in that, An inverter is also installed on the outside of the water tank, and the inverter is connected to the burner.

10. The liquid supply device for a liquid supply vehicle according to claim 1, characterized in that, The water tank is equipped with an overflow pipe inside.

Images