CN210946443U

CN210946443U - Intelligent vacuum pumping system for concrete pouring in steel pipe concrete arch bridge pipe

Info

Publication number: CN210946443U
Application number: CN201921545746.5U
Authority: CN
Inventors: 王建军; 李威; 何建乔; 翁贻令; 解威威; 梁铭; 袁征; 池浩; 胡以婵
Original assignee: Guangxi Road and Bridge Engineering Group Co Ltd
Current assignee: Guangxi Road and Bridge Engineering Group Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-07-07
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses an intelligent vacuum pumping system for steel pipe concrete encircles intraductal concrete filling of bridge, including the base, set up the pump body on the base, set up on the base and be used for carrying out driven drive arrangement to the pump body, with the thick liquid bucket of the pump body through first vacuum rubber tube intercommunication with pump body coupling, the upper end of thick liquid bucket sets up the gas outlet and is connected with first vacuum rubber tube that the gas was taken out in being used for thick liquid bucket, and the lateral wall lower extreme of thick liquid bucket is provided with the grout inlet that is used for carrying out the extraction to unqualified concrete thick liquid, grout inlet passes through second vacuum rubber tube and sets up in the play thick liquid pipe intercommunication of arched bridge arch rib upside, thick liquid bucket upper end still is provided with the pressure measurement device that is used for carrying out the detection to thick liquid bucket atmospheric pressure, pressure measurement device, drive arrangement form intelligent pressure control thick liquid system with controller signal connection. Through the utility model discloses can reduce personnel's input and working strength, can improve the filling quality who encircles intraductal concrete of bridge, realize practicing thrift manufacturing cost's purpose.

Description

Intelligent vacuum pumping system for concrete pouring in steel pipe concrete arch bridge pipe

Technical Field

The utility model belongs to the concrete field of filling especially relates to an intelligent vacuum pumping system that is used for concrete filled in steel pipe concrete to encircle bridge pipe.

Background

In the steel pipe concrete structure, the compactness of the concrete in the pipe is a key factor influencing the bearing capacity of the steel pipe concrete structure. The number of bubbles on the wall of the steel pipe can be effectively reduced by a vacuum auxiliary pouring method, so that the compactness of the poured concrete in the pipe is improved. In the process of pouring concrete in the arch bridge, the vacuum degree in the arch bridge pipe needs to be controlled between minus 0.07MPa and minus 0.08 MPa. However, the control of the existing vacuum degree is completed by 2 workers in a cooperative manner, one worker is responsible for monitoring the reading of the mechanical pressure gauge, the other worker is responsible for starting and stopping the vacuum pumping equipment, the high-intensity and repetitive work can increase the production cost of an enterprise, and the product quality of the enterprise is influenced. In addition, in order to reduce the temperature stress of the concrete in the pipe, the pouring time of the concrete in the pipe is generally set at night. The long-time high-altitude operation at night easily leads workers to fatigue, and then the vacuum degree in the arch bridge pipe cannot be controlled within a specified range. The compactness of concrete in the pipe is reduced due to the over-low vacuum degree, the hoop effect of the steel pipe on the concrete is weakened, and the service performance and the durability of the concrete-filled steel pipe arch bridge are influenced. The probability of the vacuum rubber tube bursting is increased due to excessive vacuum degree, and safety accidents are easily caused.

Disclosure of Invention

The utility model aims at providing a be used for steel pipe concrete to encircle intraductal concrete placement's of bridge intelligent evacuation system can real time monitoring intraductal vacuum, opening of intelligent control evacuation equipment stops, when reducing personnel's input and working strength, can improve and encircle the intraductal concrete placement's of bridge filling quality, realizes practicing thrift manufacturing cost's purpose.

In order to realize the purpose, the utility model provides an intelligent vacuum pumping system for concrete filling in a steel pipe concrete arch bridge pipe, which comprises a base, a pump body arranged on the base, a driving device arranged on the base and connected with the pump body for driving the pump body, and a slurry barrel communicated with the pump body through a first vacuum rubber pipe, the upper end of the pulp barrel is provided with an air outlet for pumping out the gas in the pulp barrel and is connected with a first vacuum rubber tube, the lower end of the side wall of the slurry barrel is provided with a slurry inlet for extracting unqualified concrete slurry, the pulp inlet is communicated with a pulp outlet pipe arranged at the upper side of the arch rib of the arch bridge through a second vacuum rubber pipe, the upper end of the pulp barrel is also provided with a pressure detection device for detecting the air pressure of the pulp barrel, the pressure detection device and the driving device are respectively in signal connection with a controller to form an intelligent pressure pumping control slurry system.

Preferably, the base is provided with a starting control box for controller installation and power supply control, and the starting control box is further provided with a key unit which is in signal connection with the controller and is used for work start-stop control and a mode adjusting panel which is in signal connection with the controller and is used for manual or automatic work mode selection.

Preferably, the key unit comprises a start button for manually starting the device, an operation button for manually controlling the operation of the driving means, and a stop button for manually controlling the device to stop operating.

Preferably, the driving device comprises a driving motor and a driving control unit which is arranged in the starting control box and is in signal connection with the controller.

Preferably, the pump body is a water ring vacuum pump, the extraction opening of the pump body is connected with the first vacuum rubber tube, and the base is further provided with a water storage barrel which is connected with the pump body and used for supplying water to the pump body.

Preferably, the upper end of the pulp barrel is also provided with a mechanical pressure gauge for field observation of workers.

Compared with the prior art, the utility model, its beneficial effect lies in:

the utility model discloses thereby in can real time monitoring intraductal vacuum through setting up coordinated pressure detection device of controller, drive arrangement work, opening of intelligent control evacuation equipment stops, when reducing personnel's input and working strength, can improve the filling quality who encircles the intraductal concrete of bridge, realizes practicing thrift manufacturing cost's purpose. The utility model discloses in can carry out the switching of automatic operation and manually operation through mode adjusting panel, guarantee stability, the reliability of the intraductal vacuum of arched bridge, realize the continuity of intraductal concrete filling process, improve the filling quality of intraductal concrete. The utility model discloses in supply water to the pump body through setting up the water storage bucket, guarantee pump body job stabilization, can adapt to operational environment and use needs.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a block diagram of the control structure of the present invention.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

As shown in figures 1-2, the utility model provides an intelligent vacuum pumping system for concrete pouring in a steel pipe concrete arch bridge pipe, which comprises a base 1, a pump body 3 arranged on the base 1, a driving device 2 arranged on the base 1 and connected with the pump body 3 for driving the pump body 3, the slurry barrel 5 is communicated with the pump body 3 through the first vacuum rubber tube 4, the upper end of the slurry barrel 5 is provided with a gas outlet 51 for pumping gas out of the slurry barrel 5 and is connected with the first vacuum rubber tube 4, the lower end of the side wall of the slurry barrel 5 is provided with a slurry inlet 52 for pumping unqualified concrete slurry, the slurry inlet 52 is communicated with a slurry outlet pipe 7 arranged on the upper side of the arch rib 14 of the arch bridge through the second vacuum rubber tube 6, the upper end of the slurry barrel 5 is also provided with a pressure detection device 53 for detecting the air pressure of the slurry barrel 5, the pressure detection device 53 and the driving device 2 are respectively in signal connection with the controller 10 to form an intelligent pressure pumping control slurry system. The upper end of the pulp barrel 5 is also provided with a mechanical pressure gauge 54 for the field observation of workers.

In this embodiment, the pulp bucket 5 is disposed beside the base 1. The pressure detecting device 53 is a differential pressure transmitter, the controller 10 is an intelligent pressure controller, and a display is arranged on the controller 10 so as to be convenient to set and observe. The pulp barrel 5 is detachably connected with the first vacuum rubber tube 4 and the second vacuum rubber tube 6, so that the pulp barrel 5 is convenient to clean, and the pulp barrel 5 is sealed. The pulp barrel 5 is communicated with the inside of the arch bridge arch rib through a second vacuum rubber tube 6 and a pulp outlet tube 7, so that the air pressure in the pulp barrel 5 is the air pressure in the arch bridge arch rib.

The base 1 is provided with a starting control box 8 for installation and power supply control of a controller 10, and the starting control box 8 is further provided with a key unit 9 which is in signal connection with the controller 10 and is used for work start-stop control and a mode adjusting panel 11 which is in signal connection with the controller 10 and is used for manual or automatic work mode selection. The key unit 9 comprises a start button 91 for manually starting the device, an operation button 92 for manually controlling the operation of the driving means 2, and a stop button 93 for manually controlling the device to stop operating.

The driving device 2 comprises a driving motor and a driving control unit which is arranged in the starting control box 8 and is in signal connection with a controller 10. The pump body 3 is a water ring vacuum pump, the pumping hole 31 of the pump body 3 is connected with the first vacuum rubber tube 4, and the base 1 is further provided with a water storage barrel 13 which is connected with the pump body 3 and used for supplying water to the pump body 3.

In this embodiment, the mode adjustment panel 11 controls the switching of manual or automatic work, so as to effectively avoid the occurrence of faults to influence the continuity of work and ensure the pouring quality of concrete in the pipe. The key unit 9 is provided with an indicator lamp corresponding to the start control box 8, and displays an operation state. The driving control unit can be a frequency converter to improve the control precision of the air pressure of the pulp barrel 5 during pulp pumping. In addition, the driving control unit can also be a star-delta starting control circuit so as to reduce the cost; the frequency converter and the star-delta starting control circuit can also be used simultaneously, the star-delta starting control circuit is controlled to work through the key unit 9 during manual operation to control the starting of the driving motor, and the frequency converter is used for controlling the working precision during automatic operation.

In the embodiment, when the system is started through the key unit 9 during operation, the mode adjusting panel 11 selects the operation mode to be automatic operation, the controller 10 controls the driving device 2 to operate and vacuumize, the pressure detection device 53 detects the air pressure in the pulp barrel 5 in real time and sends a signal to the controller 10, when the vacuum degree in the pulp barrel 5, namely the vacuum degree in the arch bridge arch rib, is reduced to the lower limit value of-0.07 MPa, the controller 10 controls the driving device 2 to stop operating, the pressure detection device 53 still detects the air pressure in the pulp barrel 5 in real time and sends the signal to the controller 10, when the vacuum degree in the pulp barrel 5 is increased to the upper limit value of-0.08 MPa, the controller 10 controls the driving device 2 to operate and vacuumize, so that the vacuum degree in the arch bridge arch rib is controlled between-0.07 MPa and-0.08 MPa, and compressed air and air bubbles in concrete in a pipe can be effectively exhausted, the compactness of the concrete in the pipe is improved. The pouring quality of concrete in the arch bridge pipe is improved while the personnel investment and the working strength are reduced, and the aim of saving the production cost is fulfilled.

The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the above teachings or as known to the person skilled in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. An intelligent vacuum pumping system for concrete pouring in a steel pipe concrete arch bridge pipe comprises a base (1), a pump body (3) arranged on the base (1), a driving device (2) which is arranged on the base (1) and connected with the pump body (3) and used for driving the pump body (3), and a slurry barrel (5) communicated with the pump body (3) through a first vacuum rubber pipe (4), and is characterized in that the upper end of the slurry barrel (5) is provided with a gas outlet (51) for pumping gas in the slurry barrel (5) and connected with the first vacuum rubber pipe (4), the lower end of the side wall of the slurry barrel (5) is provided with a slurry inlet (52) for pumping unqualified concrete slurry, the slurry inlet (52) is communicated with a slurry outlet pipe (7) arranged on the upper side of an arch bridge arch rib (14) through a second vacuum rubber pipe (6), and the upper end of the slurry barrel (5) is further provided with a pressure detection device (53) for detecting the air pressure of the slurry barrel (5), the pressure detection device (53) and the driving device (2) are respectively in signal connection with a controller (10) to form an intelligent pressure pumping control slurry system.

2. The intelligent vacuum pumping system for concrete pouring in the steel pipe concrete arch bridge pipe is characterized in that a starting control box (8) used for installation and power supply control of a controller (10) is arranged on the base (1), a key unit (9) in signal connection with the controller (10) for work start and stop control and a mode adjusting panel (11) in signal connection with the controller (10) for manual or automatic work mode selection are further arranged on the starting control box (8).

3. An intelligent vacuum pumping system for concrete pouring in a steel pipe concrete arch bridge pipe according to claim 2, characterized in that the key unit (9) comprises a start button (91) for manually starting the equipment, an operation button (92) for manually controlling the operation of the driving device (2), and a stop button (93) for manually controlling the equipment to stop working.

4. An intelligent vacuum pumping system for concrete pouring in a steel pipe concrete arch bridge pipe according to claim 1, characterized in that the driving device (2) comprises a driving motor and a driving control unit which is arranged in the starting control box (8) and is in signal connection with the controller (10).

5. The intelligent vacuumizing system for concrete pouring in the steel pipe concrete arch bridge pipe according to claim 1 or 4, wherein the pump body (3) is a water ring vacuum pump, an air pumping port (31) of the pump body (3) is connected with the first vacuum rubber pipe (4), and a water storage barrel (13) which is connected with the pump body (3) and used for supplying water to the pump body (3) is further arranged on the base (1).

6. The intelligent vacuumizing system for concrete pouring in the steel pipe concrete arch bridge pipe is characterized in that a mechanical pressure gauge (54) for workers to observe on site is further arranged at the upper end of the slurry barrel (5).