CN215444311U

CN215444311U - Plunger pump

Info

Publication number: CN215444311U
Application number: CN202121812177.3U
Authority: CN
Inventors: 徐嘉斌; 张学鲁; 邹荣成
Original assignee: Xi'an Baode Intelligent Technology Co Ltd
Current assignee: Xi'an Baode Intelligent Technology Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-07
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to a plunger pump, which comprises a pump seat, a plunger and a pump barrel, wherein the pump barrel is arranged on the pump seat, the plunger is arranged in the pump barrel and can freely move up and down in the pump barrel, the lower part of the plunger is embedded with a primary seal in a surrounding manner, the middle upper part of the plunger pump is provided with a pump head in a surrounding manner, the lower part of the pump head is fixed outside the upper part of the pump barrel in a surrounding manner, and a secondary seal is arranged between the middle part of the pump head and the plunger. The utility model has the advantages of long service life and long maintenance period.

Description

Plunger pump

Technical Field

The utility model belongs to the field of booster water injection pumps, and relates to booster water injection of an oil field water injection well, in particular to a plunger pump for re-booster energy-saving water injection of the oil field water injection well, which is matched with a special driving system.

Background

Water injection is one of the commonly adopted measures for increasing the yield of the oil field, and in the water injection of the oil field, water pumps such as a three-plunger pump, a centrifugal pump and the like are commonly used for pressurizing water injection in a high-pressure water distribution room or a well head, but various problems exist, the requirements cannot be met or the maintenance amount is large, and the production is influenced. The defects of the traditional booster water injection pump are as follows:

1) the increased pressure does not meet the requirements of the water injection well.

2) The pump has only one seal.

3) The seals require frequent maintenance.

4) Frequent troubleshooting is required.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-pressure water injection plunger pump with long service life and long maintenance period for solving the technical problems in the background technology.

The technical solution of the utility model is as follows: the utility model relates to a plunger pump, which is characterized in that: the plunger pump comprises a pump base, a plunger and a pump barrel, the pump barrel is arranged on the pump base, the plunger is arranged in the pump barrel and can freely move up and down in the pump barrel, the lower portion of the plunger is embedded with a first-stage seal in a surrounding manner, the upper portion of the plunger pump is provided with a pump head in a surrounding manner, the lower portion of the pump head is fixed outside the upper portion of the pump barrel in a surrounding manner, a second-stage seal is arranged between the middle portion of the pump head and the plunger, and a water inlet and a water outlet communicated with the pump barrel are formed in the pump base.

Furthermore, an auxiliary seal is arranged between the upper part of the pump head and the plunger pump.

Further, the plunger pump still includes intelligent leakage detection device, and intelligent leakage detection device is including leaking the liquid chamber, leaking detection pipe and leak detector, and the pump head leaks inside the liquid chamber sets up the pump head between the secondary seal and the supplementary seal, leaks the liquid chamber and passes through leak detection pipe joint leak detector.

Furthermore, the auxiliary seal is a normal pressure seal, and auxiliary sealing filler is filled in the inner wall of the pump head.

Further, the primary seal is composed of a plurality of high-pressure seal rings or seal rings.

Further, the secondary seal is composed of a plurality of high-pressure seal rings or seal rings.

The pump base is a base of the pump, is used for integrally fixing the pump and is used for connecting a water inlet pipe and a water outlet pipe of the pump. The pump barrel is a sleeve outside the pump, and the bottom of the pump barrel is fixed on the pump base in a threaded or flange steel ring mode. The plunger piston is in transition fit with the pump barrel and can move in the pump barrel in one degree of freedom. The pump head is fixed on the pump barrel through threads and used for installing a sealing piece and an intelligent leakage detection device. The intelligent leakage detection device is arranged on the pump head, and can detect the amount of leakage liquid according to the leakage amount of the pump and judge whether the pump leaks.

The utility model provides a plunger pump, which is different from the prior pump in that: the utility model is designed according to the pressure resistance of 35Mpa, can realize the water injection pressurization requirement of not more than 25Mpa, can also research and develop a plunger pump with higher pressure, and meets the requirements of various water injection wells. The utility model has the advantages that the sealing performance is superior to that of the conventional plunger pump through two-stage sealing, the leakage amount is detected between the two-stage sealing and the auxiliary sealing, and the weight or the liquid level of leaked oil can be detected and a signal is generated to transmit the signal, so that a person is prevented from patrolling whether the pump is leaked or not. The utility model has simple principle, convenient manufacture and low manufacture cost; the maintenance workload is less in the operation process, and the operation cost is low. Therefore, the utility model has the following advantages:

1) the utility model can bear 35Mpa pressure, and even research and develop a plunger pump with higher water injection pressure so as to meet the requirements of various water injection wells.

2) The utility model adopts a plurality of high-pressure sealing rings for sealing, and the sealing effect is good.

3) The utility model can realize intelligent leakage detection, and has long maintenance-free period and short maintenance time.

4) The utility model has simple principle, convenient manufacture, low cost and low operation cost.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

The reference numerals are explained below:

1. a pump mount; 2. a pump barrel; 3. a plunger; 4. a pump head; 5. primary sealing; 6. secondary sealing; 7. auxiliary sealing; 8. a leakage liquid chamber; 9. a leakage detection tube; 10. a leak detector; 11. a water inlet and a water outlet.

Detailed Description

The general aspects of the utility model will be described in further detail with reference to the following figures and specific examples:

referring to fig. 1, the structure of the embodiment of the utility model includes a pump base 1 which is a base of the whole pump, a pump barrel 2 is firmly fixed on the pump base 1 through threads, a plunger 3 is arranged in the pump barrel 2, the plunger 3 is in clearance fit with the pump barrel 2 and can freely move up and down in the pump barrel 2, a primary seal 5 is embedded around the lower part of the plunger 3, and the primary seal is a high-pressure seal and consists of a plurality of high-pressure seal rings or seal rings to seal liquid in the pump barrel 2. A secondary seal 6 is arranged between the middle part of the pump head 4 and the plunger, and is also a high-pressure seal, and is composed of a plurality of high-pressure seal rings or seal rings, the secondary seal is carried out on the liquid in the pump barrel 2, an auxiliary seal 7 is arranged above the inside of the pump head 4, and is a normal-pressure seal, and is composed of an auxiliary seal filler and used for blocking the leaked liquid. The pump base 1 is provided with a water inlet and outlet 11 communicated with the pump barrel 2, and the water can be pumped in or out through the water inlet and outlet 11. A leakage liquid cavity 8 is arranged between the secondary seal 6 and the auxiliary seal 7 in the pump head 4, after the leakage liquid is collected, the leakage liquid is led into a leakage detector 10 through a leakage detection pipe 9, the leakage detector 10 transmits a pump leakage signal, and whether the pump needs to be maintained or not is judged according to the leakage.

The present invention and the technical contents not specifically described in the above embodiments are the same as the prior art.

The above embodiments are only specific embodiments disclosed in the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention disclosed in the present invention should be subject to the scope of the claims.

Claims

1. A plunger pump, characterized by: the plunger pump includes pump mount, plunger and pump barrel, the pump barrel sets up on the pump mount, the plunger sets up in the pump barrel, can freely be piston motion about the pump barrel is inside, the plunger lower part is encircleed and is inlayed and have one-level sealed, upper portion is encircleed and is provided with the pump head in the plunger pump, the pump head lower part is encircleed and is fixed in the pump barrel upper portion outside, it is sealed to be provided with the second grade between pump head middle part and the plunger, be provided with the inlet outlet with the pump barrel intercommunication on the pump mount.

2. The plunger pump of claim 1, wherein: and an auxiliary seal is arranged between the upper part of the pump head and the plunger pump.

3. The plunger pump of claim 2, wherein: plunger pump still includes intelligent leak detection device, intelligent leak detection device is including leaking the liquid chamber, leak detection pipe and leak detection ware, the pump head leaks inside the liquid chamber sets up the pump head between the secondary seal and supplementary seal, leak the liquid chamber and pass through leak detection pipe joint leak detection ware.

4. The plunger pump of claim 3, wherein: the auxiliary seal is a normal pressure seal, and an auxiliary sealing filler is arranged in the inner wall of the pump head.

5. The plunger pump according to any one of claims 1 to 4, wherein: the primary seal is composed of a plurality of high-pressure seal rings or seal rings.

6. The plunger pump of claim 5, wherein: the secondary seal is composed of a plurality of high-pressure seal rings or seal rings.