CN214616897U

CN214616897U - Mortar pumping device for in-situ spraying and building repair of comprehensive pipe gallery

Info

Publication number: CN214616897U
Application number: CN202120516230.9U
Authority: CN
Inventors: 朱子豪; 王荣林; 虞益彬
Original assignee: Jiangsu Suwu Construction Engineering Co ltd; China University of Geosciences
Current assignee: Jiangsu Suwu Construction Engineering Co ltd; China University of Geosciences
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-05
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a mortar pumping device for in-situ spraying and repairing of a comprehensive pipe gallery. In its frame structure, a mixing hopper is arranged on the top of the frame structure, and two sets of hydraulic cylinders and two sets of material cylinders are respectively arranged in parallel on the frame structure. At the bottom, the hydraulic cylinder and the material cylinder are connected in two sets; in the valve body, the feed port is connected with the material cylinder interface, and the passage between the two is provided with a first one-way pneumatic valve, the material cylinder interface and the material outlet. A second one-way pneumatic valve is arranged on the passage connecting the two, and the first one-way pneumatic valve and the second one-way pneumatic valve are opposite-direction valves. The feed ports of the two valve bodies are connected with the mixing hopper through the guide pipe, the discharge ports of the two valve bodies are connected with the slurry pipe, and the material cylinder interfaces of the two valve bodies are respectively connected with the output ends of the two material cylinders. The utility model can better realize the high-efficiency and long-distance pumping of the CCCP repairing mortar, and is simple and convenient in design, easy to operate, and can well meet the requirements of the CCCP repairing mortar pumping pressure and distance.

Description

Mortar pumping device for in-situ spraying and building repair of comprehensive pipe gallery

Technical Field

The utility model relates to a non-excavation underground works repair equipment technical field especially relates to a be used for utility tunnel normal position to spout and build prosthetic mortar pumping installations.

Background

The centrifugal casting and spraying (CCCP) technology is one of the most widely used underground passage structural repair methods at the present stage, and the principle is to pump a paste lining slurry prepared in advance to a high-speed rotary sprayer which is positioned on the central axis of a comprehensive Pipe gallery and driven by compressed air, uniformly Cast the material on the inner wall of the Pipe gallery under the action of centrifugal force, and simultaneously, the rotary sprayer is slowly dragged along the central axis of the Pipe gallery under the drive of a traction winch, so that the lining slurry forms a continuous and compact lining layer on the Pipe wall.

For repairing a long-distance defective pipe gallery structure, how to pump mortar in a long distance and have a better pressure maintaining effect is one of the problems to be solved urgently. The existing mortar pumping system is classified from the aspect of power source and comprises the forms of electric, pneumatic, hydraulic and the like, wherein the hydraulic pumping system is stable in performance, sufficient in power, economical and environment-friendly and is widely applied. However, when the comprehensive pipe gallery is repaired by a centrifugal casting spraying method (CCCP), if a traditional single-cylinder hydraulic mortar pumping device is adopted, the pumping pressure and the pumping distance of the device cannot meet the requirement of repairing the long-distance pipe gallery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to existing technical current situation, provide a be used for utility tunnel normal position to spout and build prosthetic mortar pumping installations, can realize CCCP restoration mortar's high efficiency, long distance pump sending betterly, and succinct convenience in the design, easily operation, the requirement of satisfying CCCP restoration to mortar pumping pressure and distance that can be fine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mortar pumping device for in-situ spraying repair of a comprehensive pipe gallery comprises a frame structure, a mixing hopper, two sets of hydraulic cylinders, two sets of material cylinders, two sets of valve bodies, an oil tank structure and an oil way block structure, wherein the frame structure is of a cubic framework structure, the mixing hopper is arranged at the top of the frame structure, the two sets of hydraulic cylinders and the two sets of material cylinders are respectively arranged at the bottom of the frame structure in parallel, the hydraulic cylinders and the material cylinders are connected in pairs, a feeding port, a discharging port and a material cylinder interface are arranged on the valve body, the feeding port is communicated with the material cylinder interface, a first one-way pneumatic valve is arranged on a passage between the feeding port and the material cylinder interface, the material cylinder interface is communicated with the discharging port, a second one-way pneumatic valve is arranged on the passage between the feeding port and the discharging port, the first one-way pneumatic valve and the second one-way pneumatic valve are different-direction valves, the feeding ports of the two sets of valve bodies are communicated with the mixing hopper through a guide pipe, and the discharging ports of the two valve bodies are communicated with a slurry conveying pipe, the oil tank structure and the oil circuit block structure are communicated through an oil pipe, and the oil circuit block structure is connected with the two hydraulic cylinders through the oil pipe, so that the two hydraulic cylinders are controlled to alternately operate and the two material cylinders alternately work.

Furthermore, the valve body is further provided with a first mounting hole and a second mounting hole, the first mounting hole is communicated to a passage between the feed inlet and the material cylinder interface and used for assembling a first one-way pneumatic valve, and the second mounting hole is communicated to a passage between the material cylinder interface and the discharge outlet and used for assembling a second one-way pneumatic valve.

Furthermore, a plurality of thread grooves are arranged on the end face, located on the material cylinder interface, of the valve body in a surrounding mode, and the valve body is connected with a flange plate at the output end of the material cylinder through the thread grooves.

Furthermore, the two valve bodies are mutually symmetrical structures and keep symmetrical after being respectively assembled to the output ends of the two material cylinders, and the discharge ports of the two valve bodies are communicated with the slurry conveying pipe through a T-shaped pipe.

Furthermore, the oil circuit block structure comprises a first-stage oil circuit block and a second-stage oil circuit block, and the first-stage oil circuit block and the second-stage oil circuit block are fixed in the frame structure through oil block supports.

The utility model has the advantages that:

the utility model adopts the double-cylinder hydraulic pump to pump mortar in an alternate working mode, can better make up the defect of insufficient pumping power in the trenchless restoration of the buried long-distance comprehensive pipe gallery, and has higher working efficiency and longer pumping distance than the traditional single-cylinder hydraulic pump; the two unidirectional pneumatic valves in different directions are adopted in the valve body, so that the automation of feeding and discharging control is realized, a complex additional control system is avoided, the energy conversion rate is improved, and the cost is reduced.

Drawings

Fig. 1 is a schematic structural view (viewed from front to back) of a mortar pumping device of the present invention;

fig. 2 is a schematic structural view (viewed from bottom to top) of the mortar pumping device of the present invention;

fig. 3 is a schematic structural view (viewed from left to right) of the mortar pumping device of the present invention;

FIG. 4 is a perspective view of the valve body of the present invention;

FIG. 5 is a right side view of the valve body of the present invention;

figure 6 is the back body diagram of the valve body of the utility model.

Description of the labeling: 1. the oil tank comprises a frame structure, 2 parts of a mixing hopper, 3 parts of a flow guide pipe, 4 parts of a valve body, 4-1 parts of a feeding hole, 4-2 parts of a material tank connector, 4-3 parts of a discharging hole, 4-4 parts of a second mounting hole, 4-5 parts of a first mounting hole, 4-6 parts of a thread groove, 5 parts of a T-shaped pipe, 6 parts of a material tank, 7 parts of a hydraulic cylinder, 8 parts of an oil tank structure, 9 parts of a second-stage oil path block, 10 parts of a first-stage oil path block, 11 parts of an oil block support.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-6, a mortar pumping device for in-situ spray-building repair of a utility tunnel includes a frame structure 1, a mixing hopper 2, two sets of hydraulic cylinders 7, two sets of material cylinders 6, two sets of valve bodies 4, an oil tank structure 8 and an oil way block structure.

Frame construction 1 is cube skeleton texture, and frame construction 1's bottom is equipped with the stabilizer blade, and mixing hopper 2 sets up at frame construction 1 top, and 7 front ends of pneumatic cylinder are equipped with the ring flange, and the input and the output of material jar 6 all are equipped with the ring flange. The two groups of hydraulic cylinders 7 and the two groups of material cylinders 6 are respectively arranged at the bottom of the frame structure 1 in parallel, the hydraulic cylinders 7 and the material cylinders 6 are connected in pairs, when the hydraulic cylinders 7 do work to extend piston rods of the hydraulic cylinders 7, compression is formed in the material cylinders 6 correspondingly connected with the hydraulic cylinders, and when the hydraulic cylinders 7 do work to retract the piston rods of the hydraulic cylinders 7, drawing is formed in the material cylinders 6 correspondingly connected with the hydraulic cylinders.

The valve body 4 is provided with a feeding port 4-1, a discharging port 4-3 and a material cylinder interface 4-2, the feeding port 4-1 is communicated with the material cylinder interface 4-2, a first one-way pneumatic valve (not shown in the figure) is arranged on a passage between the feeding port 4-1 and the material cylinder interface 4-2, the material cylinder interface 4-2 is communicated with the discharging port 4-3, and a second one-way pneumatic valve (not shown in the figure) is arranged on a passage between the feeding port 4-1 and the material cylinder interface 4-3. The first one-way pneumatic valve and the second one-way pneumatic valve are counter-directional valves. Wherein, the first one-way pneumatic valve plugs the feed inlet 4-1, which can be opened under the action of attraction force and closed under the action of pushing force; the second one-way pneumatic valve plugs the discharge port 4-3, and the second one-way pneumatic valve is closed under the action of attraction force and opened under the action of pushing force.

The feed inlets 4-1 of the two valve bodies 4 are communicated with the mixing hopper 2 through a flow guide pipe 3, the flow guide pipe 3 generally comprises a feed conveying pipe and a connecting pipe, the discharge outlets 4-3 of the two valve bodies 4 are communicated with a slurry conveying pipe, and the material cylinder interfaces 4-2 of the two valve bodies 4 are respectively communicated with the output ends of the two material cylinders 6. In addition, a plurality of thread grooves 4-6 are arranged on the end face, positioned on the material cylinder interface 4-2, of the valve body 4 and surround the material cylinder interface 4-2, and the valve body 4 is connected with a flange plate at the output end of the material cylinder 6 through the thread grooves 4-6.

Oil tank structure 8 and oil circuit piece structure all set up in frame construction 1, and oil tank structure 8 includes oil filler hole, machine oil tank, crosses oil strain tank etc. and oil circuit piece structure includes one-level oil circuit piece 10 and second grade oil circuit piece 9, and one-level oil circuit piece 10 and second grade oil circuit piece 9 pass through oil circuit piece support 11 to be fixed in frame construction 1.

The oil tank structure 8 is communicated with the oil circuit block structure through an oil pipe, and the oil circuit block structure is connected with the two hydraulic cylinders 7 through the oil pipe, so that the two hydraulic cylinders 7 are controlled to alternately operate, and the two material cylinders 6 alternately work. The hydraulic system can adopt full-automatic control, is easy to operate, has low requirements on operators, and is not repeated in detail in consideration of mature technology.

Referring to fig. 4 and 6, in the above technical solution, a first mounting hole 4-5 and a second mounting hole 4-4 are further provided on the valve body 4, the first mounting hole 4-5 is communicated to a passage between the feed port 4-1 and the material cylinder interface 4-2 for assembling a first one-way pneumatic valve, and the second mounting hole 4-4 is communicated to a passage between the material cylinder interface 4-2 and the discharge port 4-3 for assembling a second one-way pneumatic valve. In principle, the two valve bodies 4 are provided with the same structural features (a feeding port 4-1, a discharging port 4-3, a material cylinder interface 4-2 and the like), but the two valve bodies 4 can be of the same structure or of a symmetrical structure, preferably, the two valve bodies 4 are of a symmetrical structure, the two valve bodies 4 are respectively assembled to the output ends of the two material cylinders 6 and then keep symmetrical, and the discharging ports 4-3 of the two valve bodies 4 are communicated with a slurry conveying pipe through a T-shaped pipe 5.

Specifically, adopt the utility model discloses the process of carrying out the mortar pump sending as follows:

the mortar for repairing CCCP is stirred and mixed uniformly in a mixing hopper 2 or the stirred and mixed uniformly CCCP is directly added into a mixing hopper 2, under the action of self weight, the mortar enters a feed inlet 4-1 of a valve body 4 along a guide pipe 3 but is intercepted by a first one-way pneumatic valve, when the material cylinder 6 correspondingly connected with the valve body 4 is under the drawing action, the first one-way pneumatic valve is opened under the action of attraction, conversely, a second one-way pneumatic valve is closed under the attraction, the mortar enters the material cylinder 6 through a feed inlet 4-1-material cylinder interface 4-2 under the action of self weight and negative pressure, when the material cylinder 6 correspondingly connected with the valve body 4 is under the compression action, the mortar is sent out by a piston, the mortar pushes the second one-way pneumatic valve to be opened at the moment, and conversely, the first one-way pneumatic valve is closed under the driving force, at the moment, the mortar enters the T-shaped pipe 5 and enters the mortar conveying pipe through the material cylinder connector 4-2-the discharge hole 4-3 under the pushing action.

In the operation process, the operation directions of the two groups of hydraulic cylinders 7, the operation directions of the two groups of material cylinders 6 and the opening and closing states of the first one-way pneumatic valve and the second one-way pneumatic valve in the valve body 4 are opposite, and mortar is sent out to the mortar conveying pipe from the T-shaped pipe 5 in a pulse mode, so that a longer pumping distance is achieved. The slurry conveying pipe is a hard low-expansion-rate pipeline so as to avoid the phenomenon of cyclic expansion and contraction of the pipeline caused by pulse action.

The utility model adopts the double-cylinder hydraulic pump to pump mortar in an alternate working mode, can better make up the defect of insufficient pumping power in the trenchless restoration of the buried long-distance comprehensive pipe gallery, and has higher working efficiency and longer pumping distance than the traditional single-cylinder hydraulic pump; two unidirectional pneumatic valves in different directions are adopted in the valve body 4, so that the automation of feeding and discharging control is realized, a complex additional control system is avoided, the energy conversion rate is improved, and the cost is reduced.

Of course, the above is only the preferred embodiment of the present invention, and the application range of the present invention is not limited thereto, so all the equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. a mortar pumping device for in-situ spraying and repairing of integrated pipe gallery is characterized in that: comprising frame structure, mixing hopper and two groups of hydraulic cylinders, two groups of material cylinders, two groups of valve bodies, oil tank structure and oil Road block structure; the frame structure is a cubic skeleton structure, the mixing hopper is arranged on the top of the frame structure, two sets of hydraulic cylinders and two sets of material cylinders are respectively arranged at the bottom of the frame structure, and the hydraulic cylinders and the material cylinders are connected in two sets, so The valve body is provided with a feed port, a discharge port and a material cylinder interface, the feed port is connected with the material cylinder interface, and the passage between the two is provided with a first one-way pneumatic valve, and the material cylinder interface is connected with the material discharge port. There is a second one-way pneumatic valve on the channel that communicates with the two. The first one-way pneumatic valve and the second one-way pneumatic valve are opposite-direction valves. The discharge ports of the two valve bodies are both connected to the slurry pipe, and the material cylinder interfaces of the two valve bodies are respectively connected to the output ends of the two material cylinders. The structure is communicated with the oil circuit block structure through the oil pipe, and the oil circuit block structure is connected with the two hydraulic cylinders through the oil pipe, so as to control the alternating operation of the two hydraulic cylinders and make the two material cylinders work alternately.

2. A mortar pumping device for in-situ spraying and repairing of integrated pipe gallery according to claim 1, characterized in that: the valve body is further provided with a first installation hole and a second installation hole, the first A mounting hole is connected to the passage between the material inlet and the material cylinder interface for assembling the first one-way pneumatic valve, and the second installation hole is connected to the passage between the material cylinder interface and the material outlet for assembling the second one One-way pneumatic valve.

3. A mortar pumping device for in-situ spraying and repairing of integrated pipe gallery according to claim 1 or 2, characterized in that: the valve body is provided with several Thread groove, through which the valve body is connected with the flange at the output end of the material cylinder.

4. A mortar pumping device for in-situ spraying and repairing of integrated pipe gallery according to claim 3, characterized in that: the two valve bodies are mutually symmetrical structures and the two valve bodies are respectively assembled to the outputs of the two material cylinders The ends are kept symmetrical, and the discharge ports of the two valve bodies are communicated with the slurry pipe through a T-shaped pipe.

5. A mortar pumping device for in-situ spraying and repairing of integrated pipe gallery according to claim 1, characterized in that: the oil circuit block structure comprises a primary oil circuit block and a secondary oil circuit block, The primary oil circuit block and the secondary oil circuit block are fixed in the frame structure by the oil block bracket.