CN205538593U - Variable velocity of flow concrete corrosion test device of medium that corrode more - Google Patents

Abstract

The utility model discloses a multi-erosion medium variable flow rate concrete dissolution test device, which comprises a frame, a medium box, several sample cylinders, a driving motor, a plunger pump and a buffer tank; the frame has two layers; the sample cylinder is fixed On the upper platform of the frame; the medium box, drive motor, plunger pump and buffer tank are fixed on the lower platform of the frame; the drive motor is used to drive the plunger pump, and the plunger pump drives the corrosion medium circulation in the medium box; the medium box , the plunger pump, and the buffer tank are connected by pipelines; there is a branch pipe on the pipeline between the plunger pump and the buffer tank to divert the excess medium back to the medium tank; there are several water outlet ports on the buffer tank, and each sample The cylinders are equipped with water inlet and outlet interfaces. The water inlet interfaces correspond to the water outlet interfaces on the buffer tank one by one. The water outlet interfaces on the sample cylinder communicate with the medium tank through pipes. According to the characteristics of the corrosion environment, this application selects the appropriate accelerated dissolution medium and medium circulation speed to carry out the accelerated corrosion test of concrete.

Description

A multi-erosion medium variable flow rate concrete dissolution test device

technical field

The invention relates to the technical field of concrete performance testing, in particular to a multi-erosion medium variable flow rate concrete dissolution test device.

Background technique

Corrosion is a durability problem of concrete. Due to the slow development of the dissolution process, conventional tests cannot characterize the differences in the corrosion resistance of different concretes in time. According to the actual corrosion medium of the project, it is feasible to select the appropriate accelerated dissolution medium and medium circulation speed to carry out the accelerated test.

Contents of the invention

In view of the problems existing in the background technology, the object of the present invention is to provide a kind of multi-erosion medium variable flow rate concrete corrosion test device, the test device selects the appropriate accelerated dissolution medium and medium circulation speed according to the characteristics of the corrosion environment to carry out the concrete dissolution accelerated test, A faster and more accurate comparison of the corrosion resistance performance of different concrete schemes is realized.

The purpose of the present invention is achieved through the following technical solutions:

A multi-erosion medium variable flow rate concrete dissolution test device, the test device includes a frame, a medium box, several sample cylinders, a drive motor, a plunger pump and a buffer tank; wherein, the frame is provided with a two-layer platform; Several of the sample tubes are fixedly arranged on the upper platform of the frame; the medium box, drive motor, plunger pump and buffer tank are fixedly arranged on the lower platform of the frame; the drive motor is used to drive The plunger pump drives the circulation of the corrosion medium in the medium tank through the plunger pump; the medium tank, the plunger pump and the buffer tank are connected by pipelines, and the buffer tank is provided with several water outlet ports , each of the sample cylinders is provided with a water inlet interface and a water outlet interface, the water inlet interface corresponds to the water outlet interface on the buffer tank, and the water outlet interface on the sample cylinder is connected to the medium through a pipeline. The box is connected.

Further, the test device also includes several float-type flowmeters, the float-type flowmeters are in one-to-one correspondence with the sample cylinders, and the corrosion medium coming out of the water outlet port on the buffer tank passes through the float-type flowmeters. After the meter enters the water inlet port on the sample cylinder, the flow rate of the corrosion medium flowing through each sample cylinder is controlled by the float type flowmeter.

Further, both the water outlet interface and the water inlet interface are connected with quick-connect water nozzles.

Further, the sample cylinder includes an upper cover, a lower cover and a barrel body, wherein the water inlet interface is set on the lower cover, and the water outlet interface is set on the upper cover; Both the upper cover and the lower cover are provided with accommodating grooves in the circumferential direction, the two ends of the barrel body are embedded in the accommodating grooves to form a sample cylinder, and the accommodating grooves are lined with sealing rings.

Further, several through holes are provided at the corresponding positions of the outer circumference of the upper cover plate and the lower cover plate. Lead screws are inserted into the through holes to fasten the upper cover, the lower cover and the barrel.

Further, the upper cover and the lower cover are made of aluminum plates, and the barrel body is made of an acrylic tube with an outer diameter of 250 mm, a wall thickness of 5 mm, and a height of 150 mm.

Further, the outlet pipeline of the plunger pump is provided with a branch pipeline for adjusting the outlet water pressure of the plunger pump.

The present invention has following positive technical effect:

The test device of the present application selects the appropriate accelerated dissolution medium and medium circulation speed according to the characteristics of the corrosion environment to carry out the accelerated corrosion test of concrete, which realizes a faster and more accurate comparison of the corrosion resistance performance of different concrete schemes.

Description of drawings

Fig. 1 is the structural representation of corrosion test device of the present invention;

Fig. 2 is a schematic structural view of the upper cover plate of the present invention;

Fig. 3 is a schematic structural view of the lower cover plate of the present invention;

Fig. 4 is a structural schematic diagram of the buffer tank of the present invention.

detailed description

The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative specifications used herein interpreted accordingly.

As shown in Figures 1-4, the multi-erosion medium variable flow rate concrete dissolution test device of the present application includes a frame 1, a medium box 6, several sample cylinders 2, a drive motor 3, a plunger pump 4 and a buffer tank 5; wherein , the frame 1 is provided with a two-layer platform; several sample tubes 2 are fixedly arranged on the upper platform of the frame 1; the medium box 6, the drive motor 3, the plunger pump 4 and the buffer tank 5 are fixedly arranged on the lower platform of the frame 1 The driving motor 3 is used to drive the plunger pump 4, and the corrosion medium in the medium tank 6 is driven to circulate through the plunger pump 4; the buffer tank 5 and the medium tank 6 are connected by pipelines, and the buffer tank 5 is provided with several water outlet interfaces 12 , each sample cylinder 2 is provided with a water inlet interface 11 and a water outlet interface 8, the water inlet interface 11 corresponds to the water outlet interface 12 on the buffer tank 5, and the water outlet interface 8 on the sample cylinder 2 passes through the pipeline It communicates with the medium box 6.

Preferably, the test device of the present application also includes several rotameters, which are installed on the surrounding panels (not shown in the figure) of the frame 1, and the rotameters are in one-to-one correspondence with the sample cylinders 2, The corrosion medium coming out of the water outlet port 12 on the buffer tank 5 enters the water inlet port 11 on the sample cylinder 2 after passing through the float type flowmeter, and the flow rate of the corrosion medium flowing through each sample cylinder is controlled by the float type flowmeter .

The working process of the multi-erosion medium variable flow rate concrete dissolution test device of the present application is: the driving motor 3 drives the plunger pump 4 to work, the plunger pump 4 drives the dissolution medium circulation in the medium box 6, and the dissolution medium coming out of the medium box 6 The medium first enters the buffer tank 5 through the water inlet hole 13 on the buffer tank 5, and then enters the water inlet port 11 on the lower cover plate 10 of the sample tube 2 through the water outlet port 12 on the buffer tank 5, and the sample tube 2 is placed to be The concrete is tested, and finally flows in through the water outlet port 8 on the upper cover plate 7 of the sample cylinder 2, and finally flows into the medium box 6 to complete the entire circulation process of the dissolution medium, and measure the performance change of the concrete sample after a certain period of accelerated dissolution test , to compare the advantages and disadvantages of different concrete corrosion resistance.

Preferably, the water outlet interface and the water inlet interface of the present application are connected with quick-connect water nozzles; the sample cylinder 2 includes an upper cover plate 7, a lower cover plate 10 and a bucket body, wherein the water inlet interface 11 is located on the lower On the cover plate 10, the water outlet interface 8 is arranged on the upper cover plate 7; the upper cover plate and the lower cover plate are provided with accommodating grooves 14 in the circumferential direction, and the two ends of the barrel are embedded in the accommodating grooves 14 to form the sample cylinder 2; The accommodating groove 14 is lined with a sealing ring, which is used to ensure the sealing performance of the connection between the upper cover plate 7, the lower cover plate 10 and the staving. Several through holes 9 are provided on the corresponding positions of the upper cover plate 7 and the lower cover plate 10. Screws are inserted into the through holes to fasten the upper cover plate 7, the lower cover plate 10 and the barrel; preferably, the upper cover plate 7 and the lower cover plate 10 are provided with three through holes 9 at the corresponding positions of the two. , three through holes are respectively arranged along the outer circumference of the barrel at intervals of 120 degrees. The upper cover plate 7 and the lower cover plate 10 are processed by an aluminum plate, and the staving is made of an acrylic tube with an outer diameter of 250mm, a wall thickness of 5mm, and a height of 150mm.

Preferably, a branch pipeline (not shown in the figure) is provided on the water outlet pipeline of the plunger pump 4 of the present application to adjust the water outlet pressure of the plunger pump 4 .

The above is just to illustrate the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the idea of the present invention are within the protection scope of the present invention.

Claims (7)

1. A multi-erosion medium variable flow rate concrete dissolution test device is characterized in that, the test device includes a frame, a medium case, some sample cylinders, a driving motor, a plunger pump and a surge tank; wherein the frame There are two platforms; several of the sample tubes are fixed on the upper platform of the frame; the medium box, drive motor, plunger pump and buffer tank are fixed on the lower platform of the frame; The driving motor is used to drive the plunger pump, and the corrosion medium in the medium box is driven to circulate through the plunger pump; the medium box, the plunger pump, and the buffer tank are connected by pipelines, and the buffer tank is Several water outlet interfaces are provided, each of the sample cylinders is provided with a water inlet interface and a water outlet interface, and the water inlet interfaces correspond to the water outlet interfaces on the buffer tank one by one, and the water outlet interfaces on the sample cylinder It communicates with the medium box through a pipeline. 2. multi-erosion medium variable flow rate concrete dissolution test device according to claim 1, is characterized in that, described test device also comprises several float type flow meters, and described float type flow meter and described sample tube are one One-to-one correspondence, the corrosion medium coming out of the water outlet port on the buffer tank passes through the float type flowmeter and enters the water inlet port on the sample cylinder, and the flow through each sample is controlled by the float type flowmeter The corrosion medium flow rate of the cylinder. 3. The multi-erosion medium variable flow rate concrete dissolution test device according to claim 1, characterized in that, both the water outlet interface and the water inlet interface are connected with quick-connect water nozzles. 4. multi-erosion medium variable flow rate concrete dissolution test device according to claim 1, is characterized in that, described sample cylinder comprises upper cover plate, lower cover plate and staving, wherein, described water inlet interface is located at On the lower cover, the water outlet interface is set on the upper cover; both the upper cover and the lower cover are provided with accommodating grooves in the circumferential direction, and the two ends of the barrel are embedded in the accommodating grooves A sample cylinder is formed, and the accommodating groove is lined with a sealing ring. 5. multi-erosion medium variable flow rate concrete dissolution test device according to claim 4, is characterized in that, the peripheral corresponding position of described upper cover plate and lower cover plate is provided with several through holes, two of described barrel After the end is embedded in the accommodating groove, lead screws are inserted into the through holes at the corresponding positions on the outer circumference of the upper cover and the lower cover to fasten the upper cover, the lower cover and the barrel. 6. The multi-erosion medium variable flow rate concrete dissolution test device according to claim 4, characterized in that, the upper cover plate and the lower cover plate are processed from aluminum plates, and the barrel body adopts an outer diameter of 250mm and a wall thickness of 5mm, height 150mm made of acrylic tube. 7. The multi-erosion medium variable flow rate concrete dissolution test device according to claim 1, characterized in that, the outlet pipeline of the plunger pump is provided with a branch pipeline for adjusting the outlet pressure of the plunger pump.