High-pressure fracturing pump

Abstract

This utility model discloses a high-pressure fracturing pump. A motor is mounted on the pump body, and a sealing connection mechanism is provided on the pump body. A monitoring and fire extinguishing mechanism is located outside the pump body. The monitoring and fire extinguishing mechanism includes a base, with two guide rods and two screws fixedly connected to the top of the base. A lifting seat is provided on the two guide rods, and two nuts are rotatably connected to the top of the lifting seat. The nuts are threadedly connected to the screws. Three sprockets are rotatably connected to the lifting seat. This invention belongs to the field of fracturing pump technology. This high-pressure fracturing pump uses a flame detector to monitor the fire situation around the pump body. Upon detecting a fire, the drive motor rotates the nuts, causing the nuts to move and move the lifting seat. The lifting seat moves down closer to the fire and opens the electric valve, allowing high-pressure liquid carbon dioxide inside the sealed chamber to be discharged through the discharge port, extinguishing the fire and simultaneously cooling the pump body, effectively improving safety during use.

Description

Technical Field

[0001] This utility model relates to the field of fracturing pump technology, specifically high-pressure fracturing pumps. Background Technology

[0002] High-pressure fracturing pumps are key equipment used in hydraulic fracturing operations during oil and gas exploration and development. Their core function is to inject fracturing fluid into the formation at ultra-high pressure to create artificial fractures and improve oil and gas recovery. The high-pressure pump drives multiple pistons to reciprocate through a crankshaft, thereby pumping the fracturing fluid. In existing technologies, when a high-pressure fracturing pump pipeline leaks, the fracturing fluid flows out from the leak. The fracturing fluid is flammable, and it is difficult for workers to detect and extinguish the fire in time, making its use less than ideal in terms of safety.

[0003] For example, patent publication number CN217712918U describes a fracturing pump, comprising: a pump body with an internal cavity; two inlets and two outlets on the outer wall of the pump body, each connected to the cavity; a first valve located within the inlet; a second valve located within the outlet; and a rotating mechanism located within the cavity, dividing the cavity into three spaces. When the rotating mechanism rotates, the volume of each space changes, allowing fracturing fluid to enter the pump body through the first valve and exit through the second valve, thus solving the problem of low working efficiency in existing fracturing pumps. The present invention addresses the issue of low efficiency. It transforms the reciprocating motion of a plunger-type fracturing pump into a rotary motion. The rotating mechanism divides the pump body into three spaces. As the rotating mechanism rotates, the volume of each space changes. Fracturing fluid enters through different inlets and exits through different outlets, completing multiple working cycles and thus improving the pump's efficiency. However, a problem exists: when a leak occurs in the high-pressure fracturing pump pipeline, fracturing fluid flows out from the leak point. Since fracturing fluid is flammable, it is difficult for personnel to detect and extinguish the fire in a timely manner, resulting in insufficient safety during use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-pressure fracturing pump, which solves the problem that when a high-pressure fracturing pump pipeline leaks, fracturing fluid flows out from the leak point. The fracturing fluid is flammable, and it is difficult for workers to detect and extinguish the fire in time, resulting in unsatisfactory safety during use.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-pressure fracturing pump, including a pump body, a motor installed on the pump body, a sealing connection mechanism on the pump body, and a monitoring and fire extinguishing mechanism on the outside of the pump body;

[0006] The monitoring and extinguishing mechanism includes a base, with two guide rods and two screws fixedly connected to the top of the base. A lifting seat is mounted on each of the two guide rods. Two nuts are rotatably connected to the top of the lifting seat, and the nuts are threaded onto the screws. Three sprockets are rotatably connected to the lifting seat, with chains sleeved between adjacent sprockets. A driven gear is fixedly connected to one of the nuts, and a driving gear is located on one side of the driven gear. A drive motor is fixedly connected to the end of the driving gear. A flame detector is installed on the lifting seat. Multiple discharge holes are provided on the inner surface of the lifting seat. A sealing box is connected to one side of the lifting seat via a connecting pipe, and an electric valve and a control box are fixedly connected to the sealing box.

[0007] Preferably, the pump body is mounted on the base, and the pump body is detachably connected to the base by multiple fixing bolts, which makes it convenient to inspect and maintain the pump body.

[0008] Preferably, the two guide rods and the two screws are symmetrically arranged at the four corners of the base, and the lifting seat is slidably connected to the guide rods, so that the guide rods can guide the movement of the lifting seat.

[0009] Preferably, the two sprockets are fixedly connected to the outer surfaces of the two nuts, and the two nuts are connected by three sprockets and two chains, so that the two nuts can rotate synchronously.

[0010] Preferably, the flame detector is detachably connected to the lifting platform, and the flame detector is configured as a video three-band infrared detector.

[0011] Preferably, the sealed box is filled with high-pressure liquid carbon dioxide, and a pressure gauge is installed on the sealed box to detect the pressure inside the sealed box.

[0012] Preferably, the sealing connection mechanism includes a first connecting pipe and a second connecting pipe. The first connecting pipe is fixedly installed on the pump body. A first sealing ring is provided between the first connecting pipe and the second connecting pipe, and a second sealing ring is provided inside the first sealing ring, which can improve the sealing effect.

[0013] This invention provides a high-pressure fracturing pump. Compared with the prior art, it has the following advantages:

[0014] 1. This high-pressure fracturing pump uses a flame detector to monitor the fire around the pump body. Once a fire is detected, the drive motor rotates the nut, which moves the lifting seat. The lifting seat moves down closer to the fire and opens the electric valve, allowing the high-pressure liquid carbon dioxide inside the sealed box to be discharged through the discharge hole, thus extinguishing the fire and cooling the pump body, effectively improving the safety of use.

[0015] 2. This high-pressure fracturing pump connects the first connecting pipe and the second connecting pipe through a flange, and uses the first sealing ring and the second sealing ring to form a double seal, which can improve the sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fire monitoring and extinguishing mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the drive motor and the nut of this utility model;

[0019] Figure 4 This is a schematic diagram of the sealing connection mechanism of this utility model.

[0020] In the diagram: 1. Pump body; 2. Monitoring and extinguishing mechanism; 201. Base; 202. Guide rod; 203. Screw; 204. Lifting seat; 205. Nut; 206. Sprocket; 207. Chain; 208. Driven gear; 209. Drive gear; 210. Drive motor; 211. Flame detector; 212. Discharge port; 213. Sealing box; 214. Electric valve; 215. Control box; 3. Motor; 4. Sealing connection mechanism; 401. First connecting pipe; 402. Second connecting pipe; 403. First sealing ring; 404. Second sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3 This utility model provides a technical solution: a high-pressure fracturing pump, including a pump body 1, a motor 3 installed on the pump body 1, a sealing connection mechanism 4 provided on the pump body 1, and a monitoring and fire extinguishing mechanism 2 provided on the outside of the pump body 1. The monitoring and fire extinguishing mechanism 2 can monitor the pump body 1 in real time, detect fires in a timely manner, and extinguish fires, effectively improving the safety of use.

[0023] The monitoring and extinguishing mechanism 2 includes a base 201, a pump body 1 mounted on the base 201, and the pump body 1 is detachably connected to the base 201 by multiple fixing bolts, facilitating maintenance of the pump body 1. Two guide rods 202 and two screws 203 are fixedly connected to the top of the base 201. The two guide rods 202 and two screws 203 are symmetrically arranged at the four corners of the base 201, and a lifting seat 204 is slidably connected to the guide rods 202, allowing the guide rods 202 to guide the movement of the lifting seat 204. The lifting seat 204 is mounted on the two guide rods 202, and two nuts 205 are rotatably connected to the top of the lifting seat 204. The screw 203 is threadedly connected. Three sprockets 206 are rotatably connected to the lifting base 204. Two of the sprockets 206 are fixed to nuts 205, and the remaining sprocket 206 is mounted on the lifting base 204. The sprocket 206 mounted on the lifting base 204 is a double-row sprocket 206, allowing the three sprockets 206 to be connected in pairs. A chain 207 is sleeved between each pair of adjacent sprockets 206. A tension wheel is located on one side of the chain 207 to keep the chain 207 taut and prevent it from slipping. Two sprockets 206 are fixedly connected to the outer surfaces of two nuts 205, and the two nuts 205 are connected by the three sprockets 206 and the two chains 207. This allows the two nuts 205 to rotate synchronously. A driven gear 208 is fixedly connected to one nut 205, and a driving gear 209 is provided on one side of the driven gear 208. A drive motor 210 is fixedly connected to the end of the drive gear 209. The drive motor 210 is a servo motor, which is easy to control. A flame detector 211 is installed on the lifting platform 204. The flame detector 211 is detachably connected to the lifting platform 204. The flame detector 211 is a video three-band infrared detector, model FDIR-3001. It adopts a solution combining video monitoring and three-band infrared flame detection technology. This product integrates high... The Qing Network Digital IP Module has a built-in embedded 32-bit DSP system, which can identify flames by detecting infrared light in the 3.8μm–5.2μm band. The inner surface of the lifting seat 204 has multiple discharge holes 212. A sealing box 213 is connected to one side of the lifting seat 204 through a connecting pipe. The sealing box 213 is filled with high-pressure liquid carbon dioxide. A pressure gauge is installed on the sealing box 213 to detect the pressure inside the sealing box 213. An electric valve 214 and a control box 215 are fixedly connected to the sealing box 213. The control box 215 is equipped with a programmable PLC, which can control the electric valve 214 and process the monitoring signal of the flame detector 211.

[0024] Please see Figure 1 and Figure 4The sealing connection mechanism 4 includes a first connecting pipe 401 and a second connecting pipe 402. The first connecting pipe 401 is fixedly installed on the pump body 1. A first sealing ring 403 is provided between the first connecting pipe 401 and the second connecting pipe 402. A second sealing ring 404 is provided inside the first sealing ring 403. The first connecting pipe 401 and the second connecting pipe 402 can be connected by a flange, and a double seal is formed by the first sealing ring 403 and the second sealing ring 404, which can improve the sealing effect.

[0025] During operation, the flame detector 211 monitors the fire situation around the pump body 1. After detecting the fire, the drive motor 210 drives the drive gear 209 to rotate. The rotation of the drive gear 209 drives the driven gear 208 to rotate. The rotation of the driven gear 208 drives the nut 205 to rotate. The two nuts 205 rotate synchronously through the sprocket 206 and the chain 207. The rotation of the nut 205 moves axially along the screw 203. The movement of the nut 205 drives the lifting seat 204 to move. The lifting seat 204 moves down closer to the fire and opens the electric valve 214. The high-pressure liquid carbon dioxide inside the sealed box 213 is discharged and discharged through the discharge hole 212, extinguishing the fire. At the same time, the pump body 1 is cooled down, effectively improving the safety of use.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A high pressure fracturing pump comprising a pump body (1), characterized in that: A motor (3) is installed on the pump body (1), a sealing connection mechanism (4) is provided on the pump body (1), and a monitoring and fire extinguishing mechanism (2) is provided on the outside of the pump body (1); The monitoring and extinguishing mechanism (2) includes a base (201). Two guide rods (202) and two screws (203) are fixedly connected to the top of the base (201). A lifting seat (204) is provided on each of the two guide rods (202). Two nuts (205) are rotatably connected to the top of the lifting seat (204). The nuts (205) are threadedly connected to the screws (203). Three sprockets (206) are rotatably connected to the lifting seat (204). A chain (207) is sleeved between each pair of adjacent sprockets (206). One of the nuts... A driven gear (208) is fixedly connected to the (205) and a driving gear (209) is provided on one side of the driven gear (208). A drive motor (210) is fixedly connected to the end of the driving gear (209). A flame detector (211) is installed on the lifting seat (204). A plurality of discharge holes (212) are provided on the inner surface of the lifting seat (204). A sealing box (213) is connected to one side of the lifting seat (204) through a connecting pipe. An electric valve (214) and a control box (215) are fixedly connected to the sealing box (213).

2. The high pressure fracturing pump of claim 1, wherein: The pump body (1) is mounted on the base (201), and the pump body (1) is detachably connected to the base (201) by a plurality of fixing bolts.

3. The high pressure fracturing pump of claim 1, wherein: The two guide rods (202) and the two screws (203) are symmetrically arranged at the four corners of the base (201), and the lifting seat (204) is slidably connected to the guide rods (202).

4. The high pressure fracturing pump of claim 1, wherein: The two sprockets (206) are fixedly connected to the outer surfaces of the two nuts (205), and the two nuts (205) are connected by a drive through the three sprockets (206) and the two chains (207).

5. The high pressure fracturing pump of claim 1, wherein: The flame detector (211) is detachably connected to the lifting platform (204), and the flame detector (211) is configured as a video three-band infrared detector.

6. The high pressure fracturing pump of claim 1, wherein: The sealed box (213) is filled with high-pressure liquid carbon dioxide, and a pressure gauge is installed on the sealed box (213).

7. The high pressure fracturing pump of claim 1, wherein: The sealing connection mechanism (4) includes a first connecting pipe (401) and a second connecting pipe (402), with the first connecting pipe (401) fixedly installed on the pump body (1).

8. The high pressure fracturing pump of claim 7, wherein: A first sealing ring (403) is provided between the first connecting pipe (401) and the second connecting pipe (402), and a second sealing ring (404) is provided inside the first sealing ring (403).

Images