CN218150887U - Manifold system - Google Patents
Manifold system Download PDFInfo
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- CN218150887U CN218150887U CN202222711611.XU CN202222711611U CN218150887U CN 218150887 U CN218150887 U CN 218150887U CN 202222711611 U CN202222711611 U CN 202222711611U CN 218150887 U CN218150887 U CN 218150887U
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Abstract
The utility model provides a manifold system, include: a high pressure manifold; the low-pressure manifold is connected with the high-pressure manifold; the plunger pump is arranged between the low-pressure manifold and the high-pressure manifold and is respectively connected with the low-pressure manifold and the high-pressure manifold; and the power pump is arranged on the low-pressure manifold, and the displacement of the power pump is in direct proportion to the displacement of the plunger pump. The utility model provides a plunger pump among the manifold system among the prior art inhale empty problem easily.
Description
Technical Field
The utility model relates to a plunger pump manifold technical field particularly, relates to a manifold system.
Background
With the continuous development of oil and gas fields, the working conditions of the oil and gas fields are more and more severe, and high-pressure and large-discharge operation is required to meet the mining requirements. And a single fracturing device needs to output high pressure and large displacement, and besides sufficient output power, a low manifold is required to input enough fracturing fluid, and a high-pressure manifold is required to output high-pressure and large-displacement fracturing fluid.
In the current manifold system, a plunger pump has no self-absorption capacity, the liquid supply of the current plunger pump depends on the liquid supply of a centrifugal pump on the sand mixing equipment, and along with the gradual increase of the power and the discharge capacity of the plunger pump, the liquid supply of the centrifugal liquid supply pump on the sand mixing equipment and the current low-pressure manifold structure cannot meet the requirement of large discharge capacity, so that the condition that the plunger pump is empty is easily caused.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a manifold system to solve the problem that the plunger pump in the manifold system in the prior art is easy to suck air.
In order to achieve the above object, the present invention provides a manifold system, including: a high pressure manifold; the low-pressure manifold is connected with the high-pressure manifold; the plunger pump is arranged between the low-pressure manifold and the high-pressure manifold and is respectively connected with the low-pressure manifold and the high-pressure manifold; and the power pump is arranged on the low-pressure manifold, and the displacement of the power pump is in direct proportion to the displacement of the plunger pump.
Further, the plunger pump includes a plurality of plungers arranged side by side; the low-pressure manifold comprises a main manifold and a branch manifold, and two ends of the branch manifold are respectively communicated with the main manifold and the plunger; the power pump is arranged on a branch manifold which is relatively far away from the main manifold among the branch manifolds.
Further, the manifold system further comprises: and the first pressure detection component is arranged on the low-pressure manifold and used for detecting the pressure in the low-pressure manifold.
Further, the manifold system further comprises: and a second pressure detecting unit provided in the plunger pump, and detecting a pressure of the plunger pump by the second pressure detecting unit.
Further, the low pressure manifold includes: the power pump is communicated with the first pipe section; and the second pipe section is arranged on the pipe body of the first pipe section and communicated with the first pipe section, and the second pipe section is communicated with the high-pressure manifold through the plunger pump.
Further, be provided with first connecting pipe on the first pipeline section, have the contained angle between the extending direction of first connecting pipe and the extending direction of first pipeline section, the manifold system still includes: and the energy accumulator is arranged on the first connecting pipe and is communicated with the first connecting pipe.
Further, the low pressure manifold further comprises: the second connecting pipe is connected with the first pipe section, and the power pump is connected with the second connecting pipe; and two ends of the transition pipe section are respectively communicated with the first pipe section and the second connecting pipe.
Further, the cross-sectional area of the flow cross-section of the transition pipe section decreases gradually from the first pipe section to the second connecting pipe.
Further, the low pressure manifold includes: the power pump is arranged on the first pipe section; the first end of the second pipe section is connected with the liquid outlet of the first pipe section through a third connecting pipe, and the second end of the second pipe section is communicated with the pipe body of the first pipe section; the third connecting tube extends along a curved trajectory.
Further, first pipeline section, third connecting pipe and second pipeline section connect gradually in order to form ring structure, and the low pressure manifold still includes: and two ends of the fourth connecting pipe are respectively connected with the second pipe section and the first pipe section, and an included angle is formed between the extending direction of the fourth connecting pipe and the extending direction of the first pipe section.
By applying the technical scheme of the utility model, the manifold system comprises a high-pressure manifold, a low-pressure manifold, a plunger pump and a power pump, the low-pressure manifold is connected with the high-pressure manifold, the plunger pump is arranged between the low-pressure manifold and the high-pressure manifold, and the plunger pump is respectively connected with the low-pressure manifold and the high-pressure manifold; the power pump is arranged on the low-pressure manifold, and the displacement of the power pump is in direct proportion to that of the plunger pump. The arrangement can ensure that the liquid on the low-pressure manifold is sufficient through the power pump, the displacement of the power pump is adjusted according to the displacement of the plunger pump, when the displacement of the plunger pump is increased, the displacement of the power pump is also increased, and when the pressure on the low-pressure manifold is lower than a set value, the displacement of the power pump is increased to ensure the stability of the liquid supply pressure of the low-pressure manifold, so that the problem that the plunger pump is empty due to insufficient pressure in the low-pressure manifold is avoided.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an embodiment of a manifold system according to the present invention;
fig. 2 shows a schematic structural view of a first embodiment of a low pressure manifold in a manifold system according to the present invention;
fig. 3 shows a schematic structural view of a second embodiment of a low pressure manifold in a manifold system according to the present invention;
fig. 4 shows a control flow diagram of a manifold system according to the present invention.
Wherein the figures include the following reference numerals:
1. a high pressure manifold; 2. a low pressure manifold; 3. a plunger pump; 4. a power pump; 20. a main manifold; 21. a first tube section; 210. a liquid supply interface; 22. a second tube section; 23. a first connecting pipe; 7. an accumulator; 24. a second connecting pipe; 25. a transition duct section; 26. a third connecting pipe; 27. a fourth connecting pipe; 8. the union is used.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 4, the present invention provides a manifold system, including: a high pressure manifold 1; the low-pressure manifold 2 is connected with the high-pressure manifold 1; the plunger pump 3 is arranged between the low-pressure manifold 2 and the high-pressure manifold 1, and the plunger pump 3 is respectively connected with the low-pressure manifold 2 and the high-pressure manifold 1; and the power pump 4 is arranged on the low-pressure manifold 2, and the displacement of the power pump 4 is in direct proportion to that of the plunger pump 3.
According to the utility model, the manifold system comprises a high-pressure manifold 1, a low-pressure manifold 2, a plunger pump 3 and a power pump 4, wherein the low-pressure manifold 2 is connected with the high-pressure manifold 1, the plunger pump 3 is arranged between the low-pressure manifold 2 and the high-pressure manifold 1, and the plunger pump 3 is respectively connected with the low-pressure manifold 2 and the high-pressure manifold 1; the power pump 4 is arranged on the low-pressure manifold 2, and the displacement of the power pump 4 is in direct proportion to the displacement of the plunger pump 3. Set up like this and can guarantee through power pump 4 that the upper liquid of low pressure manifold 2 is sufficient, power pump 4's discharge capacity is adjusted according to plunger pump 3's discharge capacity size, when plunger pump 3's discharge capacity increases, power pump 4's discharge capacity also increases thereupon, when pressure on low pressure manifold 2 is less than the setting value, then power pump 4 increases the discharge capacity and guarantees that low pressure manifold 2 supplies liquid pressure stability, avoids because 2 internal pressure of low pressure manifold is not enough, causes the problem that plunger pump 3 vacuated.
Preferably, the low pressure manifold 2 has a through diameter of 6",8" or 10".
In specific implementation, the plunger pump 3 is provided with a liquid inlet end and a liquid outlet end, the plunger pump 3 comprises a plurality of plungers, and the plurality of plungers are arranged side by side from the liquid inlet end to the liquid outlet end; the low-pressure manifold 2 comprises a main manifold 20 and a plurality of branch manifolds, two ends of each branch manifold are respectively communicated with the main manifold and the plungers, the plurality of branch manifolds are arranged in one-to-one correspondence with the plurality of plungers, and the power pump 4 is arranged on one of the plurality of branch manifolds which is relatively far away from the main manifold 20. It should be noted here that the low-pressure manifold 2 includes a main manifold 20 and a plurality of branch manifolds, and the branch manifolds communicate with each other, and among the branch manifolds, the branch manifold closest to the main manifold 20 and the branch manifold farthest from the main manifold 20 are included, and the power pump 4 is disposed on the branch manifold farthest from the main manifold 20 to ensure that the plunger opposite thereto is sufficiently filled with liquid.
In this application, can guarantee through increasing power pump 4 that low pressure manifold 2 goes up liquid sufficient, also can be according to the big or small dynamic adjustment power pump 4's of actual operation discharge capacity for low pressure manifold 2 prevents that the high pressure from leading to plunger pump 3 and valve body to lose efficacy in a stable confession liquid pressure within range.
In order to be able to monitor the pressure in the low pressure manifold 2 in real time to adjust the displacement of the power pump 4, the manifold system further comprises: and a first pressure detecting means provided in the low pressure manifold 2, for detecting a pressure in the low pressure manifold 2 by the first pressure detecting means.
Further, in order to monitor the pressure of the plunger pump 3 in real time and avoid the plunger pump 3 from being empty or malfunctioning, the manifold system further comprises: and a second pressure detecting means provided in the plunger pump 3, for detecting a pressure of the plunger pump 3 by the second pressure detecting means.
Preferably, the first pressure detecting member and the second pressure detecting member are both pressure sensors.
In an embodiment provided by the present invention, as shown in fig. 2, the low pressure manifold 2 includes: a first pipe section 21, wherein the power pump 4 is communicated with the first pipe section 21; and a second pipe section 22 which is arranged on the pipe body of the first pipe section 21 and is communicated with the first pipe section 21, wherein the second pipe section 22 is communicated with the high-pressure manifold 1 through the plunger pump 3. Wherein, one end of the first pipe section 21 far away from the power pump 4 is provided with a liquid supply interface 210; along the extending direction of the second pipe section 22, a plurality of unions 8 are arranged on the second pipe section 22 at intervals.
In specific implementation, the first pipe section 21 is provided with a first connecting pipe 23, an included angle is formed between the extending direction of the first connecting pipe 23 and the extending direction of the first pipe section 21, and the manifold system further includes: and an accumulator 7 provided on the first connection pipe 23 and communicating with the first connection pipe 23. Through setting up energy storage 7, store the air of low pressure manifold 2 in the operation in the energy storage 7, be provided with automatic exhaust apparatus on the energy storage 7, discharge the air in the energy storage 7.
Wherein, low pressure manifold 2 still includes: a second connecting pipe 24 connected with the first pipe section 21, and the power pump 4 is connected with the second connecting pipe 24; and a transition pipe section 25, wherein both ends of the transition pipe section 25 are respectively communicated with the first pipe section 21 and the second connecting pipe 24. The cross-sectional area of the flow cross-section of the transition pipe section 25 decreases from the first pipe section 21 to the second connecting pipe 24. The arrangement is that when the material flows through the transition pipe section 25, the sectional area of the flow section can be changed to increase the pressure, and the sectional area is matched with the power pump 4 at the end of the second connecting pipe 24 to increase the fluid pressure.
In another embodiment provided by the present invention, as shown in fig. 3, the low pressure manifold 2 includes: a first pipe section 21, wherein the power pump 4 is arranged on the first pipe section 21; a second pipe section 22, wherein a first end of the second pipe section 22 is connected with the liquid outlet of the first pipe section 21 through a third connecting pipe 26, and a second end of the second pipe section 22 is communicated with the pipe body of the first pipe section 21; the third connection tube 26 extends along a curved trajectory. The connection between the first and second sections 21, 22 by means of the third connection line 26 enables circulation of the feed liquid in the low pressure manifold 2, keeping it always in flow condition in the low pressure manifold 2.
Specifically, the first pipe section 21, the third connecting pipe 26 and the second pipe section 22 are sequentially connected to form an annular structure, and the low pressure manifold 2 further includes: and two ends of the fourth connecting pipe 27 are respectively connected with the second pipe section 22 and the first pipe section 21, and an included angle is formed between the extending direction of the fourth connecting pipe 27 and the extending direction of the first pipe section 21. Through the fourth connecting pipe 27, sufficient liquid supply is provided for the middle liquid outlet of the low-pressure manifold 2, and the problem of insufficient liquid supply when the flow rate is too high is avoided. Along the extending direction of the second pipe section 22, a plurality of unions 8 are arranged on the second pipe section 22 at intervals.
In the control flow of the manifold system shown in fig. 4, the power pump 4 is a liquid feed pump. Firstly, reading of a pressure sensor on the low-pressure manifold 2 is read, then, in a control system, a difference value between a pressure value monitored by the pressure sensor and a set value is compared with a preset threshold value of the system, and the displacement of the power pump 4 is adjusted according to a comparison result.
When the difference value between the pressure value and the set value is larger than the threshold value, the displacement of the power pump 4 is reduced, when the difference value between the pressure value and the set value is equal to the threshold value, the displacement of the power pump 4 is not adjusted, and when the difference value between the pressure value and the set value is smaller than the threshold value, the displacement of the power pump 4 is increased.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
according to the utility model provides a manifold system, including high pressure manifold 1, low pressure manifold 2, plunger pump 3 and power pump 4, low pressure manifold 2 is connected with high pressure manifold 1, plunger pump 3 sets up between low pressure manifold 2 and high pressure manifold 1, plunger pump 3 is connected with low pressure manifold 2 and high pressure manifold 1 respectively; the power pump 4 is arranged on the low-pressure manifold, and the displacement of the power pump 4 is in direct proportion to the displacement of the plunger pump 3. The setting can guarantee through power pump 4 that the liquid is sufficient on the low pressure manifold 2 like this, and the discharge capacity of power pump 4 is adjusted according to the discharge capacity size of plunger pump 3, and when the discharge capacity of plunger pump 3 increased, the discharge capacity of power pump 4 also increased thereupon, when pressure on the low pressure manifold 2 was less than the setting value, then power pump 4 increase discharge capacity guarantees that low pressure manifold 2 supplies liquid pressure to stabilize, avoids because 2 internal pressures of low pressure manifold are not enough, causes the problem that plunger pump 3 vacuumed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A manifold system, comprising:
a high pressure manifold (1);
the low-pressure manifold (2) is connected with the high-pressure manifold (1);
the plunger pump (3) is arranged between the low-pressure manifold (2) and the high-pressure manifold (1), and the plunger pump (3) is respectively connected with the low-pressure manifold (2) and the high-pressure manifold (1);
and the power pump (4) is arranged on the low-pressure manifold (2), and the displacement of the power pump (4) is in direct proportion to the displacement of the plunger pump (3).
2. A manifold system according to claim 1, characterized in that the plunger pump (3) comprises a plurality of plungers arranged side by side;
the low-pressure manifold (2) comprises a main manifold (20) and a branch manifold, and two ends of the branch manifold are respectively communicated with the main manifold (20) and the plunger;
the power pump is characterized in that the number of the branch manifolds is multiple, the branch manifolds and the plungers are arranged in a one-to-one correspondence mode, and the power pump (4) is arranged on one of the branch manifolds which is relatively far away from the main manifold (20).
3. The manifold system as defined in claim 1, further comprising:
and the first pressure detection part is arranged on the low-pressure manifold (2), and is used for detecting the pressure in the low-pressure manifold (2).
4. The manifold system as defined in claim 1, further comprising:
and a second pressure detection unit that is provided to the plunger pump (3) and detects the pressure of the plunger pump (3) by the second pressure detection unit.
5. A manifold system according to claim 1, characterized in that the low pressure manifold (2) comprises:
a first pipe section (21), the power pump (4) being in communication with the first pipe section (21);
and the second pipe section (22) is arranged on the pipe body of the first pipe section (21) and communicated with the first pipe section (21), and the second pipe section (22) is communicated with the high-pressure manifold (1) through the plunger pump (3).
6. A manifold system according to claim 5, characterised in that a first connecting pipe (23) is arranged on the first pipe section (21), the first connecting pipe (23) extending in an angle to the first pipe section (21), the manifold system further comprising:
an accumulator (7) arranged on the first connecting pipe (23) and communicating with the first connecting pipe (23).
7. A manifold system according to claim 5, characterized in that the low pressure manifold (2) further comprises:
the second connecting pipe (24) is connected with the first pipe section (21), and the power pump (4) is connected with the second connecting pipe (24);
and the two ends of the transition pipe section (25) are respectively communicated with the first pipe section (21) and the second connecting pipe (24).
8. A manifold system according to claim 7, characterized in that the cross-sectional area of the flow cross-section of the transition pipe section (25) decreases in the direction from the first pipe section (21) to the second connection pipe (24).
9. A manifold system according to claim 1, characterized in that the low pressure manifold (2) comprises:
a first pipe section (21), the power pump (4) being arranged on the first pipe section (21);
a second pipe section (22), wherein a first end of the second pipe section (22) is connected with a liquid outlet of the first pipe section (21) through a third connecting pipe (26), and a second end of the second pipe section (22) is communicated with a pipe body of the first pipe section (21);
the third connecting tube (26) extends along a curved trajectory.
10. A manifold system according to claim 9, characterized in that said first pipe section (21), said third connecting pipe (26) and said second pipe section (22) are connected in sequence to form an annular structure, said low pressure manifold (2) further comprising:
and two ends of the fourth connecting pipe (27) are respectively connected with the second pipe section (22) and the first pipe section (21), and an included angle is formed between the extending direction of the fourth connecting pipe (27) and the extending direction of the first pipe section (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222711611.XU CN218150887U (en) | 2022-10-14 | 2022-10-14 | Manifold system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222711611.XU CN218150887U (en) | 2022-10-14 | 2022-10-14 | Manifold system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218150887U true CN218150887U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222711611.XU Active CN218150887U (en) | 2022-10-14 | 2022-10-14 | Manifold system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218150887U (en) |
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2022
- 2022-10-14 CN CN202222711611.XU patent/CN218150887U/en active Active
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