High-low pressure manifold

Abstract

The utility model relates to the technical field of oil field fracturing manifolds, in particular to a high-low pressure manifold which comprises a bottom pipe, the bottom pipe is arranged to be H-shaped, a first fixing column is fixedly connected to the lower side face of the bottom pipe, liquid conveying openings are formed in the two sides of the bottom pipe, and first sealing covers are connected to the outer sides of the liquid conveying openings in a threaded mode. The upper side face of the bottom pipe is fixedly connected with a supporting base, a U-shaped pipe fitting is arranged above the supporting base, and the two sides of the U-shaped pipe fitting communicate with side pipe assemblies. The side pipe assembly is arranged on the side face of the tail-end U-shaped pipe, the side pipe is fixedly communicated with the outer side of the tail-end U-shaped pipe, the included angle of 90 degrees is formed between the side pipe and the tail-end U-shaped pipe, liquid is conveyed into the side pipe through the feeding terminal, then the flow speed of the liquid is changed through the pressure pump, and due to the fact that the included angle is formed between the side pipe and the tail-end U-shaped pipe, the flow speed of the liquid is changed. The flow speed resistance of liquid can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield fracturing manifolds, in particular to a high- and low-pressure manifold. Background Art

[0002] The high- and low-pressure manifold is an integrated device of the oilfield fracturing manifold, designed to effectively manage the flow of fluids (such as gas or liquid) from different pressure sources. It can collect, divert or convert the pressure of high-pressure and low-pressure fluids.

[0003] The existing publication number is CN109441420B, which discloses a high- and low-pressure manifold, including a skid-mounted, high-pressure manifold group and a low-pressure manifold group, wherein the high-pressure manifold group and the low-pressure manifold group are fixed on the skid; the low-pressure manifold group includes a transverse main pipe and a longitudinal main pipe; a plurality of low-pressure suction ports are evenly distributed on the longitudinal main pipe; a plurality of low-pressure discharge ports are evenly distributed on the two outer sides facing the transverse main pipe, and a control valve is respectively provided on the low-pressure suction port and the low-pressure discharge port; each channel of the high-pressure manifold group includes a main channel and a plurality of branch channels, each of which is provided with a high-pressure fluid inlet, and the branch channel is connected to the main channel by a T-shaped tee, and a carbide bushing is embedded in the T-shaped tee, which can protect the inner wall of the T-shaped tee from being damaged by the high-pressure fluid; the left end of the main channel is the high-pressure fluid outlet end, and the right end is connected by a right-angle two-way and a right-angle tee.

[0004] The existing high and low pressure manifolds still have the following deficiencies:

[0005] 1. In the existing design, the pipeline is set in a "T" shape, which generates strong pressure during the infusion process and thus strong resistance, making it unsuitable for high-pressure infusion.

[0006] 2. During the oil field fracturing process, multiple different liquid inlets and infusion ports are required to facilitate fracturing. Utility Model Content

[0007] The purpose of the utility model is to solve the problems existing in the prior art and to propose a high and low pressure manifold.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] The high and low pressure manifold includes a bottom pipe, which is arranged in an "H" shape. The lower side of the bottom pipe is fixedly connected to a No. 1 fixing column. Infusion ports are opened on both sides of the bottom pipe. The outer side of the infusion port is threadedly connected to a No. 1 sealing cap. The upper side of the bottom pipe is fixedly connected to a support base. A U-shaped pipe fitting is arranged above the support base. The two sides of the U-shaped pipe fitting are connected with side pipe assemblies. The U-shaped pipe fitting includes a tail end U-shaped pipe, a connecting pipe and a front end pipe. Both ends of the tail end U-shaped pipe and the end of the connecting pipe away from the tail end U-shaped pipe are fixedly connected with a connecting sleeve. One end of the connecting pipe close to the tail end U-shaped pipe is threadedly connected to the inner side of the connecting sleeve. The two adjacent connecting pipes are connected to each other through the connecting sleeve. The end of the connecting pipe is fixedly connected with the front end pipe. The outer side of the front end pipe is threadedly connected with the No. 2 sealing cap. The outer side of the connecting pipe is fixedly connected with a fixing piece.

[0010] In order to better achieve the above purpose, the present invention adopts a further technical solution: the lower sides of the connecting tube and the tail U-shaped tube are fixedly connected with a No. 3 fixing column, and the lower side of the No. 3 fixing column is fixedly connected to the upper surface of the support base.

[0011] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the side tube assembly includes a side tube, the side tube is fixedly connected to the fixing member, the end of the side tube is provided with a connecting structure, the connecting structure includes a pressure pump, the lower side of the pressure pump is fixedly connected with a No. 2 fixing column, the No. 2 fixing column is fixedly connected to the upper side of the bottom tube, both sides of the pressure pump are fixedly connected with side tubes, the side of the side tube and the side tube are fixedly connected with connecting plates, screws pass through the two connecting plates, and nuts are threaded at the ends of the screws, a feed terminal is provided on the side of the pressure pump away from the tail end U-shaped tube, the side of the feed terminal is fixedly connected with an end tube, and the end of the end tube is fixedly connected to the side tube through the connecting plate.

[0012] The advantages of the present invention are as follows: by arranging a side tube assembly on the side surface of the tail end U-shaped tube, the side tube is fixedly connected to the outside of the tail end U-shaped tube, an angle of ° is set between the side tube and the tail end U-shaped tube, liquid is infused into the side tube through the feed terminal, and then the flow rate of the liquid is changed by the pressure pump, and because the angle is set between the side tube and the tail end U-shaped tube, the flow rate resistance of the liquid is reduced; by arranging a bottom tube and a tail end U-shaped tube, infusion ports are set on the side surface of the bottom tube and both ends of the tail end U-shaped tube, a No. 1 sealing cap is set on the outside of the bottom tube, and a No. 2 sealing cap is set at the end of the tail end U-shaped tube, and infusion for oil field fission can be achieved through multiple infusion ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side structural diagram of the high and low pressure manifold proposed in the utility model;

[0014] Figure 2 for Figure 1 Enlarged view of part A;

[0015] Figure 3 for Figure 1 Enlarged view of part B;

[0016] Figure 4 This is a schematic diagram of the top structure of the high and low pressure manifold proposed in the utility model.

[0017] In the figure: 1 bottom pipe, 2 No. 1 cover, 3 No. 1 fixing column, 4 support base, 5 tail end U-shaped pipe, 6 connecting pipe, 7 connecting sleeve, 8 No. 2 cover, 9 fixing piece, 10 side pipe, 11 pressure pump, 12 connecting plate, 13 feed terminal, 14 No. 2 fixing column, 15 No. 3 fixing column, 16 front end pipe. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] Reference Figure 1-Figure 4 As shown, the high and low pressure manifold comprises: a bottom pipe 1, the bottom pipe 1 is arranged in an "H" shape, a No. 1 fixing column 3 is fixedly connected to the lower side of the bottom pipe 1, an infusion port is provided on both sides of the bottom pipe 1, a No. 1 sealing cap 2 is threadedly connected to the outer side of the infusion port, the upper side of the bottom pipe 1 is fixedly connected to a support base 4, a U-shaped pipe fitting is arranged above the support base 4, and side pipe assemblies are connected on both sides of the U-shaped pipe fitting, through the bottom pipe 1 and the tail end U-shaped pipe 5, an infusion port is provided on the side of the bottom pipe 1 and at both ends of the tail end U-shaped pipe 5, a No. 1 sealing cap 2 is arranged on the outer side of the bottom pipe 1, and a No. 1 sealing cap 2 is arranged on the end of the tail end U-shaped pipe 5. A No. 2 sealing cap 8 is provided, and the infusion of oil field fission can be realized through multiple infusion ports; the U-shaped pipe fitting includes a tail end U-shaped tube 5, a connecting tube 6 and a front end tube 16, both ends of the tail end U-shaped tube 5 and the end of the connecting tube 6 away from the tail end U-shaped tube 5 are fixedly connected with a connecting sleeve 7, one end of the connecting tube 6 close to the tail end U-shaped tube 5 is threadedly connected to the inner side of the connecting sleeve 7, and the two adjacent connecting tubes 6 are connected to each other through the connecting sleeve 7, and the end of the connecting tube 6 is fixedly connected to the front end tube 16, the outer side of the front end tube 16 is threadedly connected to the No. 2 sealing cap 8, and the outer side of the connecting tube 6 is fixedly connected to a fixing part 9.

[0020] The lower sides of the connecting tube 6 and the tail U-shaped tube 5 are both fixedly connected to a third fixing column 15 , and the lower side of the third fixing column 15 is fixedly connected to the upper surface of the support base 4 .

[0021] The side pipe assembly includes a side pipe 10, and the side pipe 10 is fixedly connected to the fixing member 9. The end of the side pipe 10 is provided with a connecting structure, and the connecting structure includes a pressure pump 11. The lower side of the pressure pump 11 is fixedly connected to the second fixing column 14, and the second fixing column 14 is fixedly connected to the upper side of the bottom pipe 1. Both sides of the pressure pump 11 are fixedly connected to the side pipe, and the sides of the side pipe 10 and the side pipe are fixedly connected to the connecting disk 12. Screws are passed through the two connecting disks 12, and nuts are threadedly connected to the ends of the screws. The pressure pump 11 is far A feed terminal 13 is provided on one side of the tail end U-shaped tube 5, and an end tube is fixedly connected to the side of the feed terminal 13. The end of the end tube is fixedly connected to the side tube through a connecting plate 12. By setting a side tube assembly on the side of the tail end U-shaped tube 5, the side tube 10 is fixedly connected to the outside of the tail end U-shaped tube 5. A 30° angle is set between the side tube 10 and the tail end U-shaped tube 5. Liquid is infused into the side tube 10 through the feed terminal 13, and then the flow rate of the liquid is changed by the pressure pump 11. Since an angle is set between the side tube 10 and the tail end U-shaped tube 5, the flow rate resistance of the liquid will be reduced.

[0022] The utility model arranges a side tube assembly on the side of the tail end U-shaped tube 5, fixes the side tube 10 in communication with the outside of the tail end U-shaped tube 5, and arranges an angle of 30° between the side tube 10 and the tail end U-shaped tube 5. Liquid is infused into the side tube 10 through the feed terminal 13, and the flow rate of the liquid is changed by the pressure pump 11. Since an angle is arranged between the side tube 10 and the tail end U-shaped tube 5, the flow rate resistance of the liquid is reduced. By arranging a bottom tube 1 and a tail end U-shaped tube 5, infusion ports are arranged on the side of the bottom tube 1 and at both ends of the tail end U-shaped tube 5, a No. 1 sealing cap 2 is arranged on the outside of the bottom tube 1, and a No. 2 sealing cap 8 is arranged at the end of the tail end U-shaped tube 5, and infusion for oil field fission can be achieved through multiple infusion ports.

Claims

1. High and low pressure manifold, characterized by: The invention comprises a bottom tube (1), wherein the bottom tube (1) is configured in an "H" shape, a fixing column (3) is fixedly connected to the lower side of the bottom tube (1), an infusion port is provided on both sides of the bottom tube (1), and a sealing cap (2) is connected to the outer side of the infusion port by a thread, and a support base (4) is fixedly connected to the upper side of the bottom tube (1), a U-shaped pipe fitting is provided above the support base (4), and side pipe assemblies are connected to the two sides of the U-shaped pipe fitting, and the U-shaped pipe fitting comprises a tail U-shaped pipe (5), a connecting pipe (6) and a front pipe (16), Both ends of the tail U-shaped tube (5) and the end of the connecting tube (6) away from the tail U-shaped tube (5) are fixedly connected to a connecting sleeve (7), one end of the connecting tube (6) close to the tail U-shaped tube (5) is threadedly connected to the inner side of the connecting sleeve (7), and two adjacent connecting tubes (6) are connected to each other through the connecting sleeve (7), and the end of the connecting tube (6) is fixedly connected to the front end tube (16), the outer side of the front end tube (16) is threadedly connected to the second sealing cap (8), and the outer side of the connecting tube (6) is fixedly connected to a fixing member (9).

2. The high and low pressure manifold according to claim 1, characterized in that: The lower sides of the connecting tube (6) and the tail U-shaped tube (5) are both fixedly connected to a No. 3 fixing column (15), and the lower side of the No. 3 fixing column (15) is fixedly connected to the upper surface of the support base (4).

3. The high and low pressure manifold according to claim 1, characterized in that: The side tube assembly includes a side tube (10), the side tube (10) is fixedly connected to the fixing member (9), and a connecting structure is provided at the end of the side tube (10), and the connecting structure includes a pressure pump (11), the lower side of the pressure pump (11) is fixedly connected to a No. 2 fixing column (14), and the No. 2 fixing column (14) is fixedly connected to the upper side of the bottom tube (1), and both sides of the pressure pump (11) are fixedly connected to the side tube, and the side surfaces of the side tube (10) and the side tube are fixedly connected to a connecting disk (12), and screws are passed through the two connecting disks (12), and nuts are threadedly connected to the ends of the screws. A feed terminal (13) is provided on the side of the pressure pump (11) away from the tail U-shaped tube (5), and the side surface of the feed terminal (13) is fixedly connected to the end tube, and the end of the end tube is fixedly connected to the side tube through the connecting disk (12).

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