Pumping system for cementing operation and cementing operation truck

Abstract

The application discloses a cementing construction pumping system and a cementing construction vehicle, and relates to the technical field of cementing construction, wherein the cementing construction pumping system is provided with a pumping flow path on the pumping system, the pumping flow path comprises a water supply flow path, a slurry mixing flow path and a pump slurry flow path, a first water supply pump and a second water supply pump are arranged on the water supply flow path, a first circulating pump and a second circulating pump are arranged on the slurry mixing flow path, and a first plunger pump and a second plunger pump are arranged on the pump slurry flow path; a plurality of electric control valves are arranged on the pumping flow path, at least part of the electric control valves form a valve linkage unit, the electric control valves in the valve linkage unit are synchronously opened and closed, the valve linkage unit comprises a first valve linkage unit and a second valve linkage unit, and the first pumping state and the second pumping state are switched through the first valve linkage unit and the second valve linkage unit; the technical scheme provided by the application can achieve the technical effects of reducing manual work, improving switching efficiency and reducing operation errors.

Description

Technical Field

[0001] The present invention relates to the technical field of cementing construction, in particular to a pumping system for cementing construction and a cementing construction vehicle. Background Art

[0002] To ensure the continuity of cementing operations, dual-motor, dual-pump cementing trucks are typically used. During operation, one pumping system is typically used, while the other is a backup. In the event of an emergency component failure, a quick system switchover is required. However, existing dual-motor, dual-pump cementing trucks have independent butterfly valves in the pumping systems, requiring manual deactivation of each valve individually to complete the switchover, which is time-consuming, labor-intensive, and prone to errors. Summary of the Invention

[0003] The main purpose of the present invention is to provide a pumping system and a cementing construction vehicle for cementing construction, aiming to improve the problem in the prior art that switching of the pumping system during cementing construction is time-consuming, labor-intensive, and prone to errors.

[0004] To achieve the above-mentioned object, the pumping system for cementing construction proposed in the present invention is provided with a pumping flow path formed on the pumping system, wherein the pumping flow path includes a water supply flow path, a slurry mixing flow path and a pump slurry flow path, two water supply pumps are provided on the water supply flow path, the two water supply pumps include a first water supply pump and a second water supply pump, two circulation pumps are provided on the slurry mixing flow path, the two circulation pumps include a first circulation pump and a second circulation pump, and a first plunger pump and a second plunger pump are provided on the pump slurry flow path;

[0005] The pumping system for cementing construction includes a plurality of electrically controlled valves, which are arranged on the pumping flow path. At least some of the electrically controlled valves form a valve linkage unit, and the electrically controlled valves in the valve linkage unit are opened and closed synchronously. The valve linkage unit includes a first valve linkage unit and a second valve linkage unit.

[0006] The pumping system for cementing construction has a first pumping state and a second pumping state. In the first pumping state, all valves in the first valve linkage unit are linked to open, and all valves in the second valve linkage unit are linked to close, so as to pump the mixed slurry through the first water supply pump, the first circulation pump and the first plunger pump.

[0007] In the second pumping state, all valves in the second valve linkage unit are linked to open, and all valves in the first valve linkage unit are linked to close, so as to pump the mixed slurry through the second water supply pump, the second circulation pump and the second plunger pump.

[0008] In one embodiment, the water supply flow path includes a water supply main road and two water supply branches, one end of each of the two water supply branches is connected to a water supply metering tank, and the other end is connected to one end of the water supply main road, and the other end of the water supply main road is connected to the feed port of the mixing tank, and the two water supply branches include a first water supply branch and a second water supply branch;

[0009] The slurry mixing tank is located on the slurry mixing flow path;

[0010] The first water supply pump is located on the first water supply branch, and the second water supply pump is located on the second water supply branch;

[0011] Some valves in the first valve linkage unit are arranged on the first water supply branch, and some valves in the second valve linkage unit are arranged on the second water supply branch.

[0012] In one embodiment, each of the water supply branches includes a metering outlet section connected to the water supply metering tank, a water intake section connected to the inlet of the water supply pump, and a water outlet section connected to the outlet of the water supply pump, and the water outlet sections of the two water supply branches are connected to the water supply main road;

[0013] A first electrically controlled valve is provided on the metering outlet section of the first water supply branch, a second electrically controlled valve is provided on the water intake section of the first water supply branch, and a third electrically controlled valve is provided on the water outlet section of the first water supply branch. The multiple valves in the first valve linkage unit include the first electrically controlled valve, the second electrically controlled valve, and the third electrically controlled valve.

[0014] A fourth electrically-controlled valve is provided on the metering outlet section of the second water supply branch, a fifth electrically-controlled valve is provided on the water intake section of the second water supply branch, and a sixth electrically-controlled valve is provided on the water outlet section of the second water supply branch. The multiple valves in the second valve linkage unit include the fourth electrically-controlled valve, the fifth electrically-controlled valve and the sixth electrically-controlled valve.

[0015] In one embodiment, the slurry mixing flow path includes a slurry mixing main path and two slurry mixing circulation branches, the two slurry mixing circulation branches include a first slurry mixing circulation branch and a second slurry mixing circulation branch, one end of the first slurry mixing circulation branch and the second slurry mixing circulation branch are both connected to the discharge port of the slurry mixing tank, and the other end is connected to the feed port of the slurry mixing tank;

[0016] The first circulation pump is provided on the first slurry mixing circulation branch, and the second circulation pump is provided on the second slurry mixing circulation branch;

[0017] Some valves in the first valve linkage unit are arranged on the first slurry mixing circulation branch, and some valves in the second valve linkage unit are arranged on the second slurry mixing circulation branch.

[0018] In one embodiment, each of the slurry mixing circulation branches includes a circulation slurry extraction section connected to the inlet of the circulation pump and a circulation slurry return section connected to the outlet of the circulation pump, and the circulation slurry return sections of the two slurry mixing circulation branches are connected to the slurry mixing main road;

[0019] A seventh electrically controlled valve is provided on the circulating slurry extraction section of the first slurry mixing circulation branch, an eighth electrically controlled valve is provided on the circulating slurry return section of the first slurry mixing circulation branch, and the multiple valves in the first valve linkage unit include the seventh electrically controlled valve and the eighth electrically controlled valve;

[0020] A ninth electrically controlled valve is provided on the circulating slurry extraction section of the second slurry mixing circulation branch, a tenth electrically controlled valve is provided on the circulating slurry return section of the first slurry mixing circulation branch, and the multiple valves in the second valve linkage unit include the ninth electrically controlled valve and the tenth electrically controlled valve.

[0021] In one embodiment, the slurry mixing flow path includes a slurry mixing main path and two slurry mixing circulation branches, and the two slurry mixing circulation branches include a first slurry mixing circulation branch and a second slurry mixing circulation branch;

[0022] The slurry pumping flow path includes a slurry pumping trunk, two material extraction branches and two pumping and material branches, the two material extraction branches include a first material extraction branch and a second material extraction branch, one end of the first material extraction branch is connected to the first slurry mixing circulation branch, and the other end is connected to one end of the slurry pumping trunk; one end of the second material extraction branch is connected to the second slurry mixing circulation branch, and the other end is connected to one end of the slurry pumping trunk;

[0023] The two pumping branches include a first pumping branch and a second pumping branch, one end of the first pumping branch is connected to the other end of the pumping main road, and one end of the second pumping branch is connected to the other end of the pumping main road, the first plunger pump is provided on the first pumping branch, and the second plunger pump is provided on the second pumping branch;

[0024] Some valves in the first valve linkage unit are arranged on the first material taking branch and the first material pumping branch, and some valves in the second valve linkage unit are arranged on the second material taking branch and the second material pumping branch.

[0025] In one embodiment, an eleventh electrically controlled valve is provided on the first material taking branch line, a twelfth electrically controlled valve is provided on the first material pumping branch line, and the multiple valves in the first valve linkage unit include the eleventh electrically controlled valve and the twelfth electrically controlled valve;

[0026] A thirteenth electrically controlled valve is provided on the second material taking branch line, a fourteenth electrically controlled valve is provided on the second material pumping branch line, and the multiple valves in the second valve linkage unit include the thirteenth electrically controlled valve and the fourteenth electrically controlled valve.

[0027] In one embodiment, the pumping flow path also includes a first connecting flow path, one end of which is connected to one end of the pump slurry main path, and the other end is connected to the water supply metering tank, and a fifteenth electrically controlled valve is provided on the first connecting flow path.

[0028] In one embodiment, the pumping flow path further includes a second communicating flow path, one end of the second communicating flow path is connected to the inlet of the water supply pump, and the other end is connected to an external water source, and a first switching valve is provided on the second communicating flow path; and / or,

[0029] The pumping flow path also includes a third connecting flow path and a fourth connecting flow path, one end of the third connecting flow path is connected to the outlet of the water supply pump, and the other end is connected to an external water source, one end of the fourth connecting flow path is connected to the outlet of the water supply pump, and the other end is connected to the inlet of the water supply metering tank, a second switching valve is provided on the third connecting flow path, and / or a third switching valve is provided on the fourth connecting flow path.

[0030] The present invention also provides a cementing construction vehicle, comprising the above-mentioned cementing construction pumping system.

[0031] The technical solution of the present invention is to arrange multiple electrically controlled valves on the pumping flow path in the pumping system, and make at least some of the electrically controlled valves form a first valve linkage unit and a second valve linkage unit, and open and close the first valve linkage unit and the second valve linkage unit, so as to switch from pumping the mixed slurry through the first water supply pump, the first circulation pump and the first plunger pump to pumping the mixed slurry through the second water supply pump, the second circulation pump and the second plunger pump; or switch from pumping the mixed slurry through the second water supply pump, the second circulation pump and the second plunger pump to pumping the mixed slurry through the first water supply pump, the first circulation pump and the first plunger pump, so as to realize one-key switching between the first pumping state and the second pumping state, thereby reducing manpower, improving switching efficiency, and reducing operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 This is a structural schematic diagram of an embodiment of a pumping system for cementing construction provided by the present invention.

[0034] Description of Figure Numbers:

[0035] 100. Pumping system; 1. First water supply pump; 11. First electrically controlled valve; 12. Second electrically controlled valve; 13. Third electrically controlled valve; 14. First on-off valve; 15. Second on-off valve; 16. Third on-off valve; 2. Second water supply pump; 21. Fourth electrically controlled valve; 22. Fifth electrically controlled valve; 23. Sixth electrically controlled valve; 3. First circulation pump; 31. Seventh electrically controlled valve; 32. Eighth electrically controlled valve; 4. Second circulation pump; 41. Ninth electrically controlled valve; 42. Tenth electrically controlled valve; 5. First plunger pump; 51. Eleventh electrically controlled valve; 52. Twelfth electrically controlled valve; 6. Second plunger pump; 61. Thirteenth electrically controlled valve; 62. Fourteenth electrically controlled valve; 7. Water supply metering tank; 71. Fifteenth electrically controlled valve; 8. Mixing tank; 81. High-energy mixer; 82. Densitometer.

[0036] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] To ensure the continuity of cementing operations, dual-motor, dual-pump cementing trucks are typically used. During operation, one pumping system is typically used, while the other is a backup. In the event of an emergency component failure, a quick system switchover is required. However, existing dual-motor, dual-pump cementing trucks have independent butterfly valves in the pumping systems, requiring manual deactivation of each valve individually to complete the switchover, which is time-consuming, labor-intensive, and prone to errors.

[0041] The present invention provides a pumping system for cementing construction, which can reduce manpower, improve switching efficiency, and reduce operational errors. Figure 1 This is a structural schematic diagram of an embodiment of a pumping system for cementing construction provided by the present invention.

[0042] See also Figure 1 In one embodiment of the present invention, the pumping system 100 for cementing construction is formed with a pumping flow path on the pumping system 100, and the pumping flow path includes a water supply flow path, a slurry mixing flow path, and a pumping slurry flow path. Two water supply pumps are provided on the water supply flow path, and the two water supply pumps include a first water supply pump 1 and a second water supply pump 2. Two circulation pumps are provided on the slurry mixing flow path, and the two circulation pumps include a first circulation pump 3 and a second circulation pump 4. A first plunger pump 5 and a second plunger pump 6 are provided on the pumping slurry flow path.

[0043] The pumping system 100 for cementing construction includes a plurality of electrically controlled valves, which are arranged on the pumping flow path. At least some of the electrically controlled valves form a valve linkage unit, and the electrically controlled valves in the valve linkage unit are opened and closed synchronously. The valve linkage unit includes a first valve linkage unit and a second valve linkage unit.

[0044] The pumping system 100 for cementing construction has a first pumping state and a second pumping state. In the first pumping state, all valves in the first valve linkage unit are linked to open, and all valves in the second valve linkage unit are linked to close, so as to pump the mixed slurry through the first water supply pump 1, the first circulation pump 3 and the first plunger pump 5.

[0045] In the second pumping state, all valves in the second valve linkage unit are linked to open, and all valves in the first valve linkage unit are linked to close, so as to pump the mixed slurry through the second water supply pump 2, the second circulation pump 4 and the second plunger pump 6.

[0046] The technical solution of the present invention is to provide a plurality of electrically controlled valves on the pumping flow path in the pumping system 100, and to make at least some of the electrically controlled valves form a first valve linkage unit and a second valve linkage unit. The first valve linkage unit and the second valve linkage unit are opened and closed, so that the operation of the first water supply pump 1, the first circulation pump 3 and the first plunger pump 5 to pump the mixed slurry can be switched to the operation of the second water supply pump 2, the second circulation pump 4 and the second plunger pump 6 to pump the mixed slurry; or the operation of the second water supply pump 2, the second circulation pump 4 and the second plunger pump 6 to pump the mixed slurry can be switched to the operation of the first water supply pump 1, the first circulation pump 3 and the first plunger pump 5 to pump the mixed slurry. One-touch switching between the first pumping state and the second pumping state can be achieved, thereby reducing manpower, improving switching efficiency, and reducing operational errors.

[0047] It can be understood that the multiple electrically controlled valves in the first valve linkage unit can be divided into multiple first valve linkage sub-units according to needs, and the electrically controlled valves in each first valve linkage sub-unit are controlled in a linkage manner; the multiple electrically controlled valves in the second valve linkage unit can also be divided into multiple second valve linkage sub-units according to needs, and the electrically controlled valves in each second valve linkage sub-unit are controlled in a linkage manner; thereby meeting personalized needs.

[0048] In one embodiment of the present invention, the water supply flow path includes a water supply main road and two water supply branches, one end of each of the two water supply branches is connected to the water supply metering tank 7, and the other end is connected to one end of the water supply main road, and the other end of the water supply main road is connected to the feed port of the mixing tank 8. The two water supply branches include a first water supply branch and a second water supply branch.

[0049] The mixing tank 8 is located on the mixing flow path;

[0050] The first water supply pump 1 is located on the first water supply branch, and the second water supply pump 2 is located on the second water supply branch;

[0051] Some valves in the first valve linkage unit are arranged on the first water supply branch, and some valves in the second valve linkage unit are arranged on the second water supply branch.

[0052] The water supply flow path includes a first water supply branch and a second water supply branch. The first water supply pump 1 is located on the first water supply branch. Some valves in the first valve linkage unit are located on the first water supply branch. The valves on the first water supply branch can be controlled by the first valve linkage unit. The second water supply pump 2 is located on the second water supply branch. Some valves in the second valve linkage unit are located on the second water supply branch. The valves on the second water supply branch can be controlled by the second valve linkage unit. By opening and closing the first valve linkage unit and the second valve linkage unit, water can be supplied to the mixing tank 8 from the first water supply branch to the second water supply branch, or from the second water supply branch to the first water supply branch. One-touch switching of the two water supply branches can be achieved, which facilitates one-touch switching between the first pumping state and the second pumping state. It is understandable that a high-energy mixer 81 can be provided at the feed port of the mixing tank 8 to perform preliminary mixing of the slurry before the slurry enters the mixing tank 8.

[0053] In one embodiment of the present invention, each of the water supply branches includes a metering outlet section connected to the water supply metering tank 7, a water intake section connected to the inlet of the water supply pump, and a water outlet section connected to the outlet of the water supply pump. The water outlet sections of the two water supply branches are connected to the water supply main road.

[0054] A first electrically controlled valve 11 is provided on the metering outlet section of the first water supply branch, a second electrically controlled valve 12 is provided on the water intake section of the first water supply branch, and a third electrically controlled valve 13 is provided on the water outlet section of the first water supply branch. The multiple valves in the first valve linkage unit include the first electrically controlled valve 11, the second electrically controlled valve 12, and the third electrically controlled valve 13.

[0055] A fourth electrically-controlled valve 21 is provided on the metering outlet section of the second water supply branch, a fifth electrically-controlled valve 22 is provided on the water intake section of the second water supply branch, and a sixth electrically-controlled valve 23 is provided on the water outlet section of the second water supply branch. The multiple valves in the second valve linkage unit include the fourth electrically-controlled valve 21, the fifth electrically-controlled valve 22 and the sixth electrically-controlled valve 23.

[0056] When the first valve linkage unit is opened and the second valve linkage unit is closed, the first electrically controlled valve 11, the second electrically controlled valve 12 and the third electrically controlled valve 13 are opened, and the fourth electrically controlled valve 21, the fifth electrically controlled valve 22 and the sixth valve are closed. The water in the water supply metering tank 7 can enter the water supply main road through the first water supply branch and then enter the slurry mixing tank 8, and the water supply action is performed in the first pumping state; when the first valve linkage unit is closed and the second valve linkage unit is opened, the first electrically controlled valve 11, the second electrically controlled valve 12 and the third electrically controlled valve 13 are closed, and the fourth electrically controlled valve 21, the fifth electrically controlled valve 22 and the sixth valve are opened. The water in the water supply metering tank 7 can enter the water supply main road through the second water supply branch and then enter the slurry mixing tank 8, and the water supply action is performed in the second pumping state; the structure is simple and it is easy to realize one-button switching between the first pumping state and the second pumping state. It is understandable that in the first pumping state and the second pumping state, the first electrically controlled valve 11 and the fourth electrically controlled valve 21 can also be set to be both open, and the two metering outlet sections discharge water at the same time.

[0057] In one embodiment of the present invention, the slurry mixing flow path includes a slurry mixing main path and two slurry mixing circulation branches, the two slurry mixing circulation branches include a first slurry mixing circulation branch and a second slurry mixing circulation branch, one end of the first slurry mixing circulation branch and the second slurry mixing circulation branch are both connected to the discharge port of the slurry mixing tank 8, and the other end are both connected to the feed port of the slurry mixing tank 8;

[0058] The first circulation pump 3 is provided on the first slurry mixing circulation branch, and the second circulation pump 4 is provided on the second slurry mixing circulation branch;

[0059] Some valves in the first valve linkage unit are arranged on the first slurry mixing circulation branch, and some valves in the second valve linkage unit are arranged on the second slurry mixing circulation branch.

[0060] The mixing flow path includes a first mixing circulation branch and a second mixing circulation branch. The first circulation pump 3 is located on the first mixing circulation branch. Some valves in the first valve linkage unit are arranged on the first mixing circulation branch. The valves on the first mixing circulation branch can be controlled by the first valve linkage unit. The second circulation pump 4 is located on the second mixing circulation branch. Some valves in the second valve linkage unit are arranged on the second mixing circulation branch. The valves on the second mixing circulation branch can be controlled by the second valve linkage unit. The first valve linkage unit and the second valve linkage unit are opened and closed, and the mixing circulation can be switched from the first mixing circulation branch to the second mixing circulation branch, or from the second mixing circulation branch to the first mixing circulation branch. One-key switching of the two mixing circulation branches can be realized, which is convenient for one-key switching between the first pumping state and the second pumping state.

[0061] In an embodiment of the present application, each of the pulp mixing circulation branches comprises a pulp taking section connected to the inlet of the circulation pump and a pulp returning section connected to the outlet of the circulation pump, and the pulp returning sections of the two pulp mixing circulation branches are communicated with the pulp mixing main channel;

[0062] The seventh electric control valve 31 is arranged on the pulp taking section of the first pulp mixing circulation branch, and the eighth electric control valve 32 is arranged on the pulp returning section of the first pulp mixing circulation branch, and the valves in the first valve linkage unit comprise the seventh electric control valve 31 and the eighth electric control valve 32;

[0063] The ninth electric control valve 41 is arranged on the pulp taking section of the second pulp mixing circulation branch, and the tenth electric control valve 42 is arranged on the pulp returning section of the first pulp mixing circulation branch, and the valves in the second valve linkage unit comprise the ninth electric control valve 41 and the tenth electric control valve 42.

[0064] When the first valve linkage unit is opened and the second valve linkage unit is closed, the seventh electric control valve 31 and the eighth electric control valve 32 are opened, and the ninth electric control valve 41 and the tenth electric control valve 42 are closed, so that the pulp in the pulp mixing tank 8 can enter the pulp mixing main channel through the first pulp mixing circulation branch, and then return to the pulp mixing tank 8, and the pulp mixing circulation action is performed in the first pumping state; when the first valve linkage unit is closed and the second valve linkage unit is opened, the seventh electric control valve 31 and the eighth electric control valve 32 are closed, and the ninth electric control valve 41 and the tenth electric control valve 42 are opened, so that the pulp in the pulp mixing tank 8 can enter the pulp mixing main channel through the second pulp mixing circulation branch, and then return to the pulp mixing tank 8, and the pulp mixing circulation action is performed in the second pumping state; the structure is simple, and one-key switching between the first pumping state and the second pumping state is facilitated.

[0065] In an embodiment of the present application, the pulp mixing flow path comprises a pulp mixing main channel and two pulp mixing circulation branches, and the two pulp mixing circulation branches comprise a first pulp mixing circulation branch and a second pulp mixing circulation branch;

[0066] The pump pulp flow path comprises a pump pulp main channel, two pulp taking branches and two pump pulp branches, the two pulp taking branches comprise a first pulp taking branch and a second pulp taking branch, one end of the first pulp taking branch is communicated with the first pulp mixing circulation branch, and the other end is communicated with one end of the pump pulp main channel, and one end of the second pulp taking branch is communicated with the second pulp mixing circulation branch, and the other end is communicated with one end of the pump pulp main channel;

[0067] The two pumping branches include a first pumping branch and a second pumping branch, one end of the first pumping branch is connected to the other end of the pumping slurry main road, and one end of the second pumping branch is connected to the other end of the pumping slurry main road. The first plunger pump 5 is provided on the first pumping branch, and the second plunger pump 6 is provided on the second pumping branch.

[0068] Some valves in the first valve linkage unit are arranged on the first material taking branch and the first material pumping branch, and some valves in the second valve linkage unit are arranged on the second material taking branch and the second material pumping branch.

[0069] The pump slurry flow path includes two pump slurry flow paths, the first pump slurry flow path includes a first material extraction branch, a pump slurry main road and a first material extraction branch, the first plunger pump 5 is located on the first pump material branch, some valves in the first valve linkage unit are arranged on the first material extraction branch and the first pump material branch, and the valves on the first pump slurry flow path can be controlled by the first valve linkage unit, the second pump slurry flow path includes a second material extraction branch, a pump slurry main road and a second material extraction branch, the second plunger pump 6 is located on the second pump material branch, and some valves in the second valve linkage unit are arranged on the second material extraction branch and the second pump material branch , the valve on the second pump slurry flow path can be controlled by the second valve linkage unit; by opening and closing the first valve linkage unit and the second valve linkage unit, the slurry supply from the first pump slurry flow path to the first plunger pump 5 can be switched to the slurry supply from the second pump slurry flow path to the second plunger pump 6, or the slurry supply from the second pump slurry flow path to the second plunger pump 6 can be switched to the slurry supply from the first pump slurry flow path to the first plunger pump 5, which can realize one-key switching of the two pump slurry flow paths, facilitating one-key switching between the first pumping state and the second pumping state.

[0070] In one embodiment of the present invention, an eleventh electrically controlled valve 51 is provided on the first material taking branch line, a twelfth electrically controlled valve 52 is provided on the first material pumping branch line, and the multiple valves in the first valve linkage unit include the eleventh electrically controlled valve 51 and the twelfth electrically controlled valve 52;

[0071] A thirteenth electrically controlled valve 61 is provided on the second material taking branch line, a fourteenth electrically controlled valve 62 is provided on the second material pumping branch line, and the multiple valves in the second valve linkage unit include the thirteenth electrically controlled valve 61 and the fourteenth electrically controlled valve 62.

[0072] When the first valve linkage unit is opened and the second valve linkage unit is closed, the eleventh electrically-controlled valve 51 and the twelfth electrically-controlled valve 52 are opened, and the thirteenth electrically-controlled valve 61 and the fourteenth valve are closed. The slurry in the mixing tank 8 can enter the pumping main road through the first material taking branch, and then supply the first plunger pump 5 from the first pumping branch, and perform the pumping action in the first pumping state; when the first valve linkage unit is closed and the second valve linkage unit is opened, the eleventh electrically-controlled valve 51 and the twelfth electrically-controlled valve 52 are closed, and the thirteenth electrically-controlled valve 61 and the fourteenth valve are opened. The slurry in the mixing tank 8 can enter the pumping main road through the second material taking branch, and then supply the second plunger pump 6 from the second pumping branch, and perform the mixing circulation action in the second pumping state; the structure is simple, and it is convenient to realize one-key switching between the first pumping state and the second pumping state.

[0073] In one embodiment of the present invention, the first valve linkage unit includes a first electrically controlled valve 11, a second electrically controlled valve 12, a third electrically controlled valve 13, a seventh electrically controlled valve 31, an eighth electrically controlled valve 32, an eleventh electrically controlled valve 51 and a twelfth electrically controlled valve 52, and the second valve linkage unit includes a fourth electrically controlled valve 21, a fifth electrically controlled valve 22, a sixth valve, a ninth electrically controlled valve 41, a tenth electrically controlled valve 42, a thirteenth electrically controlled valve 61 and a fourteenth electrically controlled valve; when the first plunger pump 5 is working (a first pumping state), the first valve linkage unit is opened and the second valve linkage unit is closed, that is, the first electrically controlled valve 11, the second electrically controlled valve 12, the third electrically controlled valve 13, the seventh electrically controlled valve 31, the eighth electrically controlled valve 32, the eleventh electrically controlled valve 51 and the twelfth electrically controlled valve The electric control valve 52 is opened, the fourth electric control valve 21 can also be in the open state, and the other electric control valves are closed to realize the operation of the first plunger pump 5; it is necessary to switch to the operation of the second plunger pump 6 (the second pumping state), the first valve linkage unit is synchronously closed, the second valve linkage unit is synchronously opened, the fourth electric control valve 21, the fifth electric control valve 22, the sixth valve, the ninth electric control valve 41, the tenth electric control valve 42, the thirteenth electric control valve 61 and the fourteenth valve are opened, the first electric control valve 11 can also be in the open state, and the other electric control valves are closed to realize one-key switching from the operation of the first plunger pump 5 to the operation of the second plunger pump 6; similarly, one-key switching from the second plunger pump 6 to the operation of the first plunger pump 5, the second valve linkage unit is synchronously closed, and the first valve linkage unit is synchronously opened.

[0074] In one embodiment of the present invention, the mixing tank 8 is provided with a density meter 82 for monitoring the density of the slurry in the mixing tank 8 .

[0075] In one embodiment of the present application, the pumping flow path further comprises a first communication flow path, one end of the first communication flow path is communicated with one end of the pump slurry main flow path, the other end is communicated with the water supply metering tank 7, and a fifteenth electrically controlled valve 71 is arranged on the first communication flow path. By controlling the fifteenth electrically controlled valve 71, the water in the water supply metering tank 7 can be used to clean the pumping system 100.

[0076] In one embodiment of the present application, the pumping flow path further comprises a second communication flow path, one end of the second communication flow path is communicated with the inlet of the water supply pump, the other end is communicated with an external water source, and a first on-off valve 14 is arranged on the second communication flow path. The external water source can supply water to the water supply pump through the second communication flow path, so as to clean the pumping system 100. It can be understood that two water supply pumps can be respectively provided with a second communication flow path, one end of each second communication flow path is communicated with the inlet of the corresponding water supply pump, the other end is communicated with an external water source, and a first on-off valve 14 is arranged on each second communication flow path.

[0077] In one embodiment of the present application, the pumping flow path further comprises a third communication flow path and a fourth communication flow path, one end of the third communication flow path is communicated with the outlet of the water supply pump, the other end is communicated with an external water source, one end of the fourth communication flow path is communicated with the outlet of the water supply pump, the other end is communicated with the inlet of the water supply metering tank 7, a second on-off valve 15 is arranged on the third communication flow path, and / or a third on-off valve 16 is arranged on the fourth communication flow path. The external water source can supply water to the water supply metering tank 7 through the third communication flow path and the fourth communication flow path. It can be understood that two water supply pumps can be respectively provided with a third communication flow path and a fourth communication flow path, one end of each third communication flow path is communicated with the outlet of the corresponding water supply pump, the other end is communicated with an external water source, one end of each fourth communication flow path is communicated with the outlet of the corresponding water supply pump, the other end is communicated with the inlet of the water supply metering tank 7, a second on-off valve 15 is arranged on each third communication flow path, and / or a third on-off valve 16 is arranged on each fourth communication flow path.

[0078] The present application also provides a cementing construction vehicle, which comprises the cementing construction pumping system 100, and the specific structure of the cementing construction pumping system 100 is referred to the above embodiments. Since the cementing construction vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0079] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A pumping system for cementing construction, characterized in that: A pumping flow path is formed on the pumping system (100), the pumping flow path including a water supply flow path, a slurry mixing flow path and a slurry pumping flow path, two water supply pumps are provided on the water supply flow path, the two water supply pumps include a first water supply pump (1) and a second water supply pump (2), two circulation pumps are provided on the slurry mixing flow path, the two circulation pumps include a first circulation pump (3) and a second circulation pump (4), and a first plunger pump (5) and a second plunger pump (6) are provided on the slurry pumping flow path; The pumping system (100) for cementing construction comprises a plurality of electrically controlled valves, the plurality of electrically controlled valves being arranged on the pumping flow path, at least some of the electrically controlled valves forming a valve linkage unit, the electrically controlled valves in the valve linkage unit being opened and closed synchronously, the valve linkage unit comprising a first valve linkage unit and a second valve linkage unit; The pumping system (100) for cementing construction has a first pumping state and a second pumping state. In the first pumping state, all valves in the first valve linkage unit are linked to open, and all valves in the second valve linkage unit are linked to close, so as to pump the mixed slurry through the first water supply pump (1), the first circulation pump (3) and the first plunger pump (5); In the second pumping state, all valves in the second valve linkage unit are linked to open, and all valves in the first valve linkage unit are linked to close, so as to pump the mixed slurry through the second water supply pump (2), the second circulation pump (4) and the second plunger pump (6); The slurry mixing flow path includes a slurry mixing main path and two slurry mixing circulation branches, the two slurry mixing circulation branches include a first slurry mixing circulation branch and a second slurry mixing circulation branch, one end of the first slurry mixing circulation branch and the second slurry mixing circulation branch are both connected to the discharge port of the slurry mixing tank (8), and the other end of the first slurry mixing circulation branch are both connected to the feed port of the slurry mixing tank (8); the first circulation pump (3) is provided on the first slurry mixing circulation branch, and the second circulation pump (4) is provided on the second slurry mixing circulation branch; some valves in the first valve linkage unit are provided on the first slurry mixing circulation branch, and some valves in the second valve linkage unit are provided on the second slurry mixing circulation branch; Each of the slurry mixing circulation branches comprises a circulation slurry extraction section connected to the inlet of the circulation pump and a circulation return slurry section connected to the outlet of the circulation pump, and the circulation return slurry sections of the two slurry mixing circulation branches are connected to the slurry mixing main road; a seventh electrically controlled valve (31) is provided on the circulation slurry extraction section of the first slurry mixing circulation branch, an eighth electrically controlled valve (32) is provided on the circulation return slurry section of the first slurry mixing circulation branch, and a plurality of valves in the first valve linkage unit include the seventh electrically controlled valve (31) and the eighth electrically controlled valve (32); a ninth electrically controlled valve (41) is provided on the circulation slurry extraction section of the second slurry mixing circulation branch, a tenth electrically controlled valve (42) is provided on the circulation return slurry section of the first slurry mixing circulation branch, and a plurality of valves in the second valve linkage unit include the ninth electrically controlled valve (41) and the tenth electrically controlled valve (42).

2. The pumping system for cementing construction according to claim 1, characterized in that: The water supply flow path includes a water supply trunk and two water supply branches, one end of each of the two water supply branches is connected to a water supply metering tank (7), and the other end of each of the two water supply branches is connected to one end of the water supply trunk, and the other end of the water supply trunk is connected to the feed port of the mixing tank (8), and the two water supply branches include a first water supply branch and a second water supply branch; The mixing tank (8) is located on the mixing flow path; The first water supply pump (1) is located on the first water supply branch, and the second water supply pump (2) is located on the second water supply branch; Some valves in the first valve linkage unit are arranged on the first water supply branch, and some valves in the second valve linkage unit are arranged on the second water supply branch.

3. The pumping system for cementing construction according to claim 2, characterized in that: Each of the water supply branches comprises a metering outlet section connected to the water supply metering tank (7), a water intake section connected to the inlet of the water supply pump, and a water outlet section connected to the outlet of the water supply pump, and the water outlet sections of the two water supply branches are connected to the water supply main road; A first electrically controlled valve (11) is provided on the metering outlet section of the first water supply branch, a second electrically controlled valve (12) is provided on the water intake section of the first water supply branch, and a third electrically controlled valve (13) is provided on the water outlet section of the first water supply branch. The plurality of valves in the first valve linkage unit include the first electrically controlled valve (11), the second electrically controlled valve (12), and the third electrically controlled valve (13); A fourth electrically controlled valve (21) is provided on the metering outlet section of the second water supply branch, a fifth electrically controlled valve (22) is provided on the water intake section of the second water supply branch, and a sixth electrically controlled valve (23) is provided on the water outlet section of the second water supply branch. The plurality of valves in the second valve linkage unit include the fourth electrically controlled valve (21), the fifth electrically controlled valve (22), and the sixth electrically controlled valve (23).

4. The pumping system for cementing construction according to claim 1, characterized in that: The slurry mixing flow path includes a slurry mixing main path and two slurry mixing circulation branches, and the two slurry mixing circulation branches include a first slurry mixing circulation branch and a second slurry mixing circulation branch; The slurry pumping flow path includes a slurry pumping trunk, two material extraction branches and two pumping and material branches, the two material extraction branches include a first material extraction branch and a second material extraction branch, one end of the first material extraction branch is connected to the first slurry mixing circulation branch, and the other end is connected to one end of the slurry pumping trunk; one end of the second material extraction branch is connected to the second slurry mixing circulation branch, and the other end is connected to one end of the slurry pumping trunk; The two pumping branches include a first pumping branch and a second pumping branch, one end of the first pumping branch is connected to the other end of the pumping slurry main road, and one end of the second pumping branch is connected to the other end of the pumping slurry main road, the first plunger pump (5) is provided on the first pumping branch, and the second plunger pump (6) is provided on the second pumping branch; Some valves in the first valve linkage unit are arranged on the first material taking branch and the first material pumping branch, and some valves in the second valve linkage unit are arranged on the second material taking branch and the second material pumping branch.

5. The pumping system for cementing construction according to claim 4, characterized in that: An eleventh electrically controlled valve (51) is provided on the first material taking branch line, a twelfth electrically controlled valve (52) is provided on the first material pumping branch line, and the plurality of valves in the first valve linkage unit include the eleventh electrically controlled valve (51) and the twelfth electrically controlled valve (52); A thirteenth electrically controlled valve (61) is provided on the second material taking branch line, a fourteenth electrically controlled valve (62) is provided on the second material pumping branch line, and the plurality of valves in the second valve linkage unit include the thirteenth electrically controlled valve (61) and the fourteenth electrically controlled valve (62).

6. The pumping system for cementing construction according to claim 4, characterized in that: The pumping flow path further comprises a first communicating flow path, one end of the first communicating flow path being connected to one end of the pump slurry main path, and the other end being connected to a water supply metering tank (7), and a fifteenth electrically controlled valve (71) being provided on the first communicating flow path.

7. The pumping system for cementing construction according to claim 1, characterized in that: The pumping flow path further includes a second communicating flow path, one end of the second communicating flow path is connected to the inlet of the water supply pump, and the other end is connected to an external water source, and a first switching valve (14) is provided on the second communicating flow path; and / or, The pumping flow path further includes a third communicating flow path and a fourth communicating flow path, one end of the third communicating flow path is connected to the outlet of the water supply pump, and the other end is connected to an external water source, one end of the fourth communicating flow path is connected to the outlet of the water supply pump, and the other end is connected to the inlet of the water supply metering tank (7), a second switching valve (15) is provided on the third communicating flow path, and / or a third switching valve (16) is provided on the fourth communicating flow path.

8. A cementing construction vehicle, characterized in that: A pumping system (100) for cementing construction comprising the pumping system (100) according to any one of claims 1 to 7.

Images