Piston metering syringe pump

Abstract

The utility model relates to natural gas exploitation device technical field discloses piston type metering injection pump, including metering injection pump body, the utility model discloses a plurality of nut mounting groove for placing fixed nut with fixed seat center symmetry is used for providing the installation basis of the whole fixed equipment, when needing to adjust the fixed position or adaptation different installation scene, the adjusting groove of right side of adjusting screw rod is inserted with the help of the tool, and the adjusting screw rod is rotated, makes it rotate in the fixed seat inner wall, because the inner wall of guide sliding block is connected with the adjusting screw rod threadedly, and the outer wall of guide sliding block is slidably connected in the guide sliding slot of fixed seat inner wall, when the adjusting screw rod rotates, two guide sliding blocks will slide along the guide sliding slot oppositely or reversely, the nut limiting block fixed at the both ends of guide sliding block moves synchronously with guide sliding block, and the outer wall of nut limiting block is slidably connected in the inner wall of nut mounting groove, can carry out the limiting or position adjustment of fixed nut in nut mounting groove.

Description

Technical Field

[0001] This utility model relates to the field of natural gas extraction equipment technology, and in particular to a piston-type metering injection pump. Background Technology

[0002] In natural gas extraction operations, the natural gas produced from gas wells often contains various impurities, such as liquid water, condensate oil, and small amounts of solid particles. Furthermore, the extraction process involves complex technological flows, including well pressurization, gathering and transportation, and subsequent processing. Each stage places precise demands on fluid delivery rates and pressure control. Therefore, the application of piston-type metering injection pumps in this field is of great significance.

[0003] In the existing technology, the support structure of traditional piston metering injection pumps is mostly designed with fixed size, and the spacing of the nut holes on the fixed seat is not adjustable. If the hole spacing of the installation bracket at the natural gas extraction site does not match the pump body, it is necessary to weld the adapter on site or replace the entire support seat. The installation time is long, and the pump body is prone to tilting due to insufficient precision of the adapter. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a piston-type metering injection pump.

[0005] This utility model is achieved by the following technical solution: a piston-type metering injection pump, including a metering injection pump body, a support component at the bottom of the metering injection pump body, and an auxiliary component at the output end of the metering injection pump body.

[0006] The support assembly includes a fixed base with a nut mounting groove on the top and a guide groove on the inner wall. A guide slider is slidably connected to the inner wall of the guide groove, and an adjusting threaded rod is threadedly connected to the inner wall of the guide slider. The outer wall of the adjusting threaded rod rotates on the fixed base, and the right side of the adjusting threaded rod penetrates the inner wall of the fixed base. An adjusting groove is provided on the right side of the adjusting threaded rod, and nut limit blocks are fixedly connected to both ends of the guide slider.

[0007] As a further improvement to the above solution, the bottom of the metering injection pump body is fixedly connected to the top of the fixed base, and the outer wall of the nut limiting block is slidably connected to the inner wall of the nut mounting groove.

[0008] As a further improvement to the above solution, several nut mounting slots are provided, and the several nut mounting slots are symmetrically arranged around the center of the fixed seat. Two guide grooves are provided, two guide sliders are provided, and two adjusting threaded rods are provided.

[0009] Through the above technical solution, during the adjustment of the support components, several nut mounting slots symmetrically arranged around the center of the fixed seat are used to place the fixing nuts, providing an installation foundation for the overall fixation of the equipment. When it is necessary to adjust the fixed position or adapt to different installation scenarios, a tool is inserted into the adjustment slot on the right side of the adjusting threaded rod, and the adjusting threaded rod is rotated to make it rotate within the inner wall of the fixed seat.

[0010] As a further improvement to the above solution, the output end of the metering injection pump body is provided with a connection hole, and the left side of the metering injection pump body is provided with a sealing ring mounting groove, and the inner wall of the sealing ring mounting groove is provided with a limit groove.

[0011] As a further improvement to the above solution, a plurality of connecting holes are provided, and the plurality of connecting holes are evenly arranged around the center of the sealing ring mounting groove, and a plurality of limiting grooves are provided.

[0012] As a further improvement to the above solution, a sealing ring limiting block is provided in contact with the inner wall of the limiting groove, and a sealing ring is fixedly connected to the end of the sealing ring limiting block away from the limiting groove. An auxiliary limiting block is fixedly connected to the right side of the output end of the metering injection pump body.

[0013] As a further improvement to the above solution, the outer wall of the sealing ring is in contact with the inner wall of the sealing ring mounting groove, and a plurality of sealing ring limiting blocks and a plurality of auxiliary limiting blocks are provided.

[0014] Through the above technical solution, several connection holes at the output end are evenly arranged around the center of the sealing ring mounting groove, providing mounting positions for the connection between the output end and the external delivery pipeline. This facilitates fixed connection using bolts or other connectors, ensuring unobstructed fluid delivery path. In the sealing assembly stage, the sealing ring is placed into the sealing ring mounting groove on the left side of the metering injection pump body. The outer wall of the sealing ring is in close contact with the inner wall of the sealing ring mounting groove, initially achieving a seal at the output end.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a metering injection pump body as its core working component, with its bottom fixedly connected to the top of the support assembly's mounting base. During the adjustment of the support assembly, several nut mounting slots symmetrically arranged around the center of the mounting base are used to place the fixing nuts, providing an installation foundation for the overall fixation of the equipment. When it is necessary to adjust the fixed position or adapt to different installation scenarios, a tool is inserted into the adjustment slot on the right side of the adjusting threaded rod, and the adjusting threaded rod is rotated, causing it to rotate within the inner wall of the mounting base. Since the inner wall of the guide slider is threadedly connected to the adjusting threaded rod, and the outer wall of the guide slider is slidably connected to the guide groove on the inner wall of the mounting base, when the adjusting threaded rod rotates, the two guide sliders will slide in opposite directions along the guide groove. The nut limiting blocks fixed at both ends of the guide slider move synchronously with the guide slider, and the outer wall of the nut limiting blocks is slidably connected to the inner wall of the nut mounting slot, which can limit or adjust the position of the fixing nut in the nut mounting slot, ensuring precise alignment between the fixing nut and the external installation structure, limiting the displacement of the nut in the horizontal and vertical directions, and maintaining a stable position even under high-frequency vibration. Through the above adjustments, the support components can adapt to different installation spacing and fixing requirements, so that the metering injection pump body can be stably fixed in the designated position of natural gas extraction operations, ensuring its metering injection accuracy under high pressure, vibration and other working conditions, and meeting the needs of precise fluid transportation in natural gas extraction.

[0016] This invention utilizes a metering injection pump body to transport fluids required for natural gas extraction. Several connection holes at the output end are evenly spaced around the center of a sealing ring mounting groove, providing mounting positions for connecting the output end to an external pipeline. This facilitates secure connection using bolts or other connectors, ensuring unobstructed fluid transport. During the sealing assembly, the sealing ring is placed into the sealing ring mounting groove on the left side of the metering injection pump body, with the outer wall of the sealing ring in close contact with the inner wall of the groove, initially achieving a seal at the output end. Simultaneously, several sealing ring limiting blocks fixed to the sealing ring engage with corresponding limiting grooves on the inner wall of the sealing ring mounting groove. These limiting grooves constrain the sealing ring's rotation and displacement within the groove, preventing displacement due to fluid pressure fluctuations and ensuring a proper seal. When the metering injection pump body's output end connects to an external pipeline, several auxiliary limiting blocks fixed to the right side of the output end fit tightly against the connecting nut, thus limiting the nut and providing rigid circumferential restraint. This limiting function effectively restricts the rotation of the connecting nut during equipment operation, ensuring the tightness of the bolt and nut connection. This prevents the gap between the output end and the external pipeline from increasing, avoiding fluid leakage from the gap or damage to the sealing ring due to uneven pressure caused by misalignment. Through reliable sealing, stable connection and convenient adaptation, it ensures long-term stable operation of the equipment under high pressure and vibration conditions. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the support component structure of this utility model; Figure 3 This is a schematic cross-sectional view of the support component of this utility model; Figure 4 This is a schematic diagram of the auxiliary component structure of this utility model; Figure 5 This is a schematic diagram of the auxiliary limiting block structure of this utility model; Figure 6 This is a cross-sectional structural diagram of the auxiliary component of this utility model.

[0018] Explanation of key symbols: 1. Metering syringe pump body; 2. Support assembly; 201. Fixing base; 202. Nut mounting groove; 203. Guide slide groove; 204. Guide slider; 205. Adjusting threaded rod; 206. Adjusting groove; 207. Nut limiting block; 3. Auxiliary assembly; 301. Connecting hole; 302. Sealing ring mounting groove; 303. Limiting groove; 304. Sealing ring limiting block; 305. Sealing ring; 306. Auxiliary limiting block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] Example:

[0021] Please combine Figure 1-6 The piston-type metering injection pump of this embodiment includes a metering injection pump body 1, a support component 2 is provided at the bottom of the metering injection pump body 1, and an auxiliary component 3 is provided at the output end of the metering injection pump body 1.

[0022] The support assembly 2 includes a fixed base 201. The top of the fixed base 201 has a nut mounting groove 202. The inner wall of the fixed base 201 has a guide groove 203. The inner wall of the guide groove 203 is slidably connected to a guide slider 204. The inner wall of the guide slider 204 is threadedly connected to an adjusting threaded rod 205. The outer wall of the adjusting threaded rod 205 rotates on the fixed base 201. The right side of the adjusting threaded rod 205 passes through the inner wall of the fixed base 201. The right side of the adjusting threaded rod 205 has an adjusting groove 206. Nut limit blocks 207 are fixedly connected to both ends of the guide slider 204.

[0023] The bottom of the metering injection pump body 1 is fixedly connected to the top of the fixed base 201, and the outer wall of the nut limiting block 207 is slidably connected to the inner wall of the nut mounting groove 202.

[0024] Several nut mounting slots 202 are provided, and the several nut mounting slots 202 are symmetrically arranged around the center of the fixed seat 201. Two guide slides 203 are provided, two guide sliders 204 are provided, and two adjusting threaded rods 205 are provided.

[0025] The metering injection pump body 1 has a connection hole 301 at the output end, and a sealing ring mounting groove 302 is provided on the left side of the metering injection pump body 1. A limit groove 303 is provided on the inner wall of the sealing ring mounting groove 302.

[0026] Several connecting holes 301 are provided, and the several connecting holes 301 are evenly arranged around the center of the sealing ring mounting groove 302. Several limiting grooves 303 are provided.

[0027] A sealing ring limiting block 304 is provided in contact with the inner wall of the limiting groove 303. A sealing ring 305 is fixedly connected to the end of the sealing ring limiting block 304 away from the limiting groove 303. An auxiliary limiting block 306 is fixedly connected to the right side of the output end of the metering injection pump body 1.

[0028] The outer wall of the sealing ring 305 contacts the inner wall of the sealing ring mounting groove 302. Several sealing ring limiting blocks 304 and several auxiliary limiting blocks 306 are provided.

[0029] The implementation principle of the piston-type metering injection pump in this embodiment is as follows: The metering injection pump body 1 serves as the core working component, responsible for the metering and injection of fluids (such as corrosion inhibitors and depressants) in the natural gas extraction process. Its bottom is fixedly connected to the top of the fixed seat 201 of the support assembly 2. The support assembly 2 ensures stable installation and positional adaptation. The auxiliary assembly 3 works in conjunction with the output end of the metering injection pump body 1 to ensure the stability of fluid delivery. During the adjustment of the support assembly 2, several nut mounting slots 202, symmetrically arranged around the center of the fixed seat 201, are used to place fixing nuts, providing an installation foundation for the overall fixation of the equipment. When it is necessary to adjust the fixed position or adapt to different installation scenarios, a tool is inserted into the adjustment slot 206 on the right side of the adjusting threaded rod 205, and the adjusting threaded rod 205 is rotated to make it rotate within the inner wall of the fixed seat 201. Since the inner wall of the guide slider 204 is threadedly connected to the adjusting threaded rod 205, and the outer wall of the guide slider 204 is slidably connected to the guide groove 203 on the inner wall of the fixed seat 201, when the adjusting threaded rod 205 rotates, the two guide sliders 204 will slide in opposite directions along the guide groove 203. The nut limiting blocks 207 fixed at both ends of the guide slider 204 move synchronously with the guide slider 204, and the outer wall of the nut limiting blocks 207 is slidably connected to the inner wall of the nut mounting groove 202, which can limit or adjust the position of the fixed nut in the nut mounting groove 202, ensuring that the fixed nut is precisely aligned with the external installation structure, limiting the displacement of the nut in the horizontal and vertical directions, and maintaining a stable position even under high-frequency vibration. Through the above adjustments, the support component 2 can adapt to different installation spacing and fixing requirements, so that the metering injection pump body 1 is stably fixed in the designated position of natural gas extraction operation, ensuring its metering injection accuracy under high pressure, vibration and other working conditions, and meeting the needs of precise fluid transportation in natural gas extraction. Meanwhile, several connection holes 301 at the output end are evenly arranged around the center of the sealing ring mounting groove 302, providing mounting positions for the connection between the output end and the external delivery pipeline. This facilitates fixed connection using bolts or other connectors, ensuring unobstructed fluid delivery path. During the sealing assembly process, the sealing ring 305 is placed into the sealing ring mounting groove 302 on the left side of the metering injection pump body 1. The outer wall of the sealing ring 305 is in close contact with the inner wall of the sealing ring mounting groove 302, initially achieving a seal at the output end. Simultaneously, several sealing ring limiting blocks 304 fixed on the sealing ring 305 are correspondingly engaged with several limiting grooves 303 on the inner wall of the sealing ring mounting groove 302. The limiting grooves 303 constrain the sealing ring limiting blocks 304, restricting the rotation and displacement of the sealing ring 305 within the sealing ring mounting groove 302, preventing the sealing ring 305 from shifting due to fluctuations in fluid delivery pressure, thus affecting the sealing effect. When the output end of the metering injection pump body 1 is connected to an external pipeline, several auxiliary limiting blocks 306 fixed on the right side of its output end fit tightly with the structure of the connecting nut, thereby limiting the nut and forming a rigid limit on it from the circumference of the connecting nut.This limiting function effectively restricts the rotation of the connecting nut during equipment operation, ensuring the tightness of the bolt and nut connection. This prevents the gap between the output end and the external pipeline from increasing, avoiding fluid leakage from the gap or damage to the sealing ring 305 due to uneven pressure caused by misalignment. Through reliable sealing, stable connection and convenient adaptation, it ensures long-term stable operation of the equipment under high pressure and vibration conditions.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A piston-type metering injection pump, characterized in that, It includes a metering injection pump body (1), a support component (2) is provided at the bottom of the metering injection pump body (1), and an auxiliary component (3) is provided at the output end of the metering injection pump body (1). The support assembly (2) includes a fixed base (201), a nut mounting groove (202) is provided on the top of the fixed base (201), a guide groove (203) is provided on the inner wall of the fixed base (201), a guide slider (204) is slidably connected to the inner wall of the guide groove (203), an adjusting threaded rod (205) is threadedly connected to the inner wall of the guide slider (204), the outer wall of the adjusting threaded rod (205) rotates on the fixed base (201), the right side of the adjusting threaded rod (205) penetrates the inner wall of the fixed base (201), an adjusting groove (206) is provided on the right side of the adjusting threaded rod (205), and nut limiting blocks (207) are fixedly connected to both ends of the guide slider (204).

2. The piston-type metering injection pump as described in claim 1, characterized in that: The bottom of the metering injection pump body (1) is fixedly connected to the top of the fixed seat (201), and the outer wall of the nut limiting block (207) is slidably connected to the inner wall of the nut mounting groove (202).

3. The piston-type metering injection pump as described in claim 1, characterized in that: The nut mounting slot (202) is provided in several ways, and the several nut mounting slots (202) are symmetrically arranged around the center of the fixed seat (201). There are two guide slides (203), two guide sliders (204), and two adjusting thread rods (205).

4. The piston-type metering injection pump as described in claim 1, characterized in that: The metering injection pump body (1) has a connection hole (301) at the output end, and a sealing ring mounting groove (302) is provided on the left side of the metering injection pump body (1). A limit groove (303) is provided on the inner wall of the sealing ring mounting groove (302).

5. The piston-type metering syringe pump as described in claim 4, characterized in that: The connecting holes (301) are provided in a plurality of manner, and the plurality of connecting holes (301) are evenly arranged around the center of the sealing ring mounting groove (302), and the limiting groove (303) is provided in a plurality of manner.

6. The piston-type metering injection pump as described in claim 4, characterized in that: The inner wall of the limiting groove (303) is provided with a sealing ring limiting block (304), and a sealing ring (305) is fixedly connected to one end of the sealing ring limiting block (304) away from the limiting groove (303). An auxiliary limiting block (306) is fixedly connected to the right side of the output end of the metering injection pump body (1).

7. The piston-type metering injection pump as described in claim 6, characterized in that: The outer wall of the sealing ring (305) is in contact with the inner wall of the sealing ring mounting groove (302), and a plurality of sealing ring limiting blocks (304) and a plurality of auxiliary limiting blocks (306) are provided.

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