CN215525181U

CN215525181U - Cement sampling pressure relief device

Info

Publication number: CN215525181U
Application number: CN202121771496.4U
Authority: CN
Inventors: 李波; 肖洋; 潘兴渝; 黄贤德; 周白露; 张军
Original assignee: Chongqing Yabo Building Materials Co ltd
Current assignee: Chongqing Yabo Building Materials Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-14
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the field of cement sampling, and particularly discloses a cement sampling pressure relief device which comprises a pressure reduction unit, wherein the pressure reduction unit comprises a Tesla valve pipe and a cover plate, the two ends of the Tesla valve pipe are respectively provided with an air inlet end and a pressure reduction end, the two ends of the Tesla valve pipe are detachably connected with the cover plate, and an air inlet pipe communicated with the Tesla valve pipe is fixed on the cover plate. The cement sampling pressure relief device can avoid the problem that the sampling cannot be finished because a large amount of cement is diffused into air during sampling due to overlarge gas flow velocity in a pipeline.

Description

Cement sampling pressure relief device

Technical Field

The utility model relates to the field of cement sampling, in particular to a cement sampling pressure relief device.

Background

Concrete is one of the indispensable materials in the fields of building construction, bridge construction and road construction, wherein the raw material of concrete includes cement. The cement is powdery, and the cement needs to be transported to a construction site after being produced in a factory and then mixed with other raw materials to form concrete. The traditional transportation mode is that the cement is packaged by using a packaging bag, and then the packaged cement is transported to a construction site by adopting a truck, but if the scale of a building, a bridge or a road is large, the quantity of the cement required by the construction site is large, so that more packaging bags are needed for packaging the cement, and on one hand, more plastic garbage is generated after the cement is used, the garbage treatment cost of the construction site is increased, and the environmental pollution is caused; on the other hand, when the bag-shaped cement is stacked in the truck, gaps also exist between adjacent packaging bags, so that the space in the truck compartment is wasted, and the transportation efficiency is reduced.

In order to solve the problems, a powder material transport vehicle is usually used for transporting cement in a large construction site, and comprises a special automobile chassis, a bulk cement vehicle tank body, an air pipeline system, an automatic unloading device and other structures.

The quality of cement is influenced by factors such as raw materials and production processes, the quality of cement in different batches and different manufacturers may be different, and unqualified cement quality easily causes unqualified quality of concrete formed by stirring and even buildings formed by pouring, so that the quality of cement needs to be detected. In order to avoid the need to transfer the unqualified cement from the container of the construction site to the powder material transport vehicle after the unqualified cement is unqualified, the sampling time is preferably before the cement is completely transferred to the container; if directly follow the tip sample of pipeline, because the pressure in the jar body is greater than the external world, the velocity of flow of air current is very fast in the pipeline, exposes the back at the tip of pipeline, and the cement in the pipeline is easily in a large amount, fast diffusion to the air under the effect of air current and can't use the sample container to collect, so need a structure that can the pressure release to reduce the atmospheric pressure in the pipeline, avoid the too big velocity of flow that leads to gas of pressure to make cement quick, a large amount of diffusion to the air.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cement sampling pressure relief device to avoid the problem that the sampling cannot be finished because a large amount of cement is diffused into air during sampling due to overlarge gas flow velocity in a pipeline.

In order to achieve the purpose, the utility model adopts the following technical scheme: cement sample pressure relief ware, including the decompression unit, the decompression unit includes tesla valve pipe and apron, and tesla valve pipe both ends are inlet end and decompression end respectively, and tesla valve pipe both ends all can dismantle with the apron and be connected, are fixed with the intake pipe with tesla valve pipe intercommunication on the apron.

The beneficial effect of this scheme does:

1. after gas got into the tesla valve intraductal from the inlet end, the pressure of decompression end was less than the pressure of inlet end, when gas flowed out from the decompression end, gaseous velocity of flow reduced, can avoid the speed of air current to lead to blowing up a large amount of cement at the excessive speed, made cement a large amount of, quick diffusion to the air in and unable the collection, so the tesla valve pipe in this scheme can carry out the pressure release to the pipeline, conveniently takes a sample.

2. When unloading, reverse installation tesla valve pipe, this moment tesla valve pipe can not lead to the fact the influence to the pressure in the pipeline with the jar body intercommunication of powder material transport vechicle, and accessible tesla valve pipe continues to shift cement to the container on the building site this moment. And when using, the apron in this scheme can be installed on the storage container who is used for storing the sample, with directly compare with the pipeline of the jar body intercommunication of powder material transport vechicle with the container intercommunication on the building site when unloading, the depressor in this scheme can fix a position the pipeline with the jar body intercommunication of powder material transport vechicle, avoids the pipeline to take place the skew, leads to the pipeline roll-off from the container on the building site with the container intercommunication on the building site to avoid cement to take place to reveal.

Furthermore, the pressure reduction unit comprises a fixing sleeve which is sleeved on the Tesla valve pipe, and the inner wall of the fixing sleeve is abutted against the outer wall of the Tesla valve pipe.

The beneficial effect of this scheme does: in order to facilitate the processing of the channel in the Tesla valve tube, the current Tesla valve tube is generally divided into two parts, grooves with the same shape as the channel in the Tesla valve tube are respectively processed on the two parts, the two parts are assembled after the grooves are processed, and the grooves on the two parts are assembled to form the tubular channel. A gap is likely to occur between the two parts making up the tesla valve tube over long periods of use. Fixed cover in this scheme can fix a position tesla valve pipe, avoids appearing becoming flexible between the two parts that constitute tesla valve pipe to avoid cement to reveal from tesla valve pipe.

Furthermore, both sides of the fixed sleeve are provided with fixed units, each fixed unit comprises a pull rod, a positioning rod and a first fixed block, and both ends of each pull rod are respectively hinged with the cover plate and the positioning rod; the first fixing block is fixed on the fixing sleeve, and the positioning rod is abutted to the first fixing block.

The beneficial effect of this scheme does: when installing the tesla valve pipe, rotate the locating lever to first fixed block on the back, under the effect of pull rod, the locating lever presses first fixed block downwards on the apron, fixes fixed cover. Compared with the mode that a plurality of fasteners such as bolts are adopted to fix the fixed sleeve, the fixing unit in the scheme has high fixing speed on the fixed sleeve and is simple to operate.

Further, the longitudinal section of the first fixed block is L-shaped.

The beneficial effect of this scheme does: first fixed block in this scheme can carry on spacingly to the locating lever, avoids the locating lever landing from first fixed block to make the locating lever keep better fixed effect to the fixed block.

Furthermore, a second fixed block is arranged below the first fixed block, and the second fixed block and the first fixed block are symmetrical along the center of the fixed sleeve.

The beneficial effect of this scheme does: the Tesla valve pipe upset 180 backs in this scheme, and the locating lever also can offset with the second fixed block, presses fixed cover downwards through the second fixed block, keeps better location effect to fixed cover.

Furthermore, the cover plate is provided with a positioning groove communicated with the air inlet pipe, the bottom of the positioning groove is fixed with an elastic pad, and the lower end of the fixing sleeve is positioned in the positioning groove and is abutted against the elastic pad.

The beneficial effect of this scheme does: fixed cover in this scheme offsets the back with the cushion, can avoid appearing the gap between air inlet and the fixed cover to avoid gaseous and cement powder to reveal from the gap.

Furthermore, the outer wall of the Tesla valve tube and the inner wall of the fixed sleeve are both prism-shaped.

The beneficial effect of this scheme does: relative sliding can not appear between the tesla valve pipe in this scheme and the fixed cover, improves the fixed location effect of cover to the tesla valve pipe.

Further, the width of the middle part of the outer wall of the Tesla valve pipe is larger than the width of the two ends.

The beneficial effect of this scheme does: because the contact surface of fixed cover inner wall and tesla valve pipe outer wall is the inclined plane, so when fixed cover slided downwards, fixed cover can press the tesla valve pipe downwards to make tesla valve pipe and apron offset, further avoid appearing the gap between tip and the apron of tesla valve pipe, further avoid gas and cement powder to reveal.

Furthermore, the fixed sleeve comprises a first fixed part and a second fixed part which are respectively opposite to the upper end and the lower end of the Tesla valve tube, and the first fixed part and the second fixed part are fixed.

The beneficial effect of this scheme does: when installing fixed cover on the Tesla valve pipe, can install first fixed part and second fixed part respectively in proper order, when pressing fixed cover on the apron, first fixed part and second fixed part are pressed to the direction that is close to each other, can avoid first fixed part and second fixed part separation, avoid fixed cover to damage.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is an elevational vertical cross-sectional view of the pressure relief unit of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a cover plate 1, an exhaust pipe 11, an air inlet pipe 12, an air outlet 13, a barrel-shaped container 2, a Tesla valve pipe 3, a Tesla valve channel 31, a fixed sleeve 4, a first fixed block 41, a second fixed block 42, a pull rod 5 and a positioning rod 51.

Examples

Cement sample pressure relief ware, as shown in fig. 1 and fig. 2, including the decompression unit, the decompression unit includes tesla valve pipe 3, apron 1 and fixed cover 4, be equipped with tesla valve passageway 31 in the tesla valve pipe 3, the upper end of tesla valve pipe 3 is the decompression end, the lower extreme is the inlet end, apron 1 top is equipped with air inlet and gas outlet 13, it is concrete, be equipped with the constant head tank relative with the air inlet on apron 1 in this embodiment, the cross section of constant head tank is the rectangle, and the width and the length of constant head tank all are greater than the diameter of air inlet. The bottom of constant head tank is glued the sealed pad of elasticity material, and the sealed longitudinal section that fills up is L shape, and the lower extreme of tesla valve pipe 3 offsets with the bottom of sealed pad, avoids appearing the gap between the lower extreme of tesla valve pipe 3 and gas outlet 13, leads to gas leakage. The bottom intercommunication of air inlet has intake pipe 12, and the upper end of intake pipe 12 is located the air inlet and splices with the air inlet lateral wall. The air outlet 13 is communicated with an exhaust pipe 11, and the upper end of the exhaust pipe 11 extends into the air outlet 13 and is glued with the inner wall of the air outlet 13.

The fixed cover 4 cover is established on tesla valve pipe 3, and the cross section of tesla valve pipe 3 is the quadrangle, and the width at the outer wall middle part of tesla valve pipe 3 is greater than the width at both ends, and the inner wall of fixed cover 4 offsets with the outer wall of tesla valve pipe 3. Specifically, the fixing sleeve 4 in this embodiment includes a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion are respectively opposite to the upper end and the lower end of the tesla valve tube 3, and the first fixing portion and the second fixing portion are welded and fixed. The cross section of the outer wall of the fixed sleeve 4 is rectangular, and the lower end of the fixed sleeve 4 is positioned in the positioning groove and is abutted to the sealing gasket.

In practical implementation, the fixing sleeve 4 can be fixed on the top of the cover plate 1 by bolts, but the fixing units are disposed on the left and right sides of the fixing sleeve 4 in this embodiment, the two fixing units are symmetrical along the tesla valve pipe 3, and the structure of the fixing unit and the connection relationship with the fixing sleeve 4 are described in this embodiment by taking the fixing unit on the left side as an example. The fixing unit comprises a positioning rod 51, two pull rods 5, a first fixing block 41 and a second fixing block 42 which are welded on the left wall of the fixing sleeve 4, the first fixing block 41 and the second fixing block 42 are symmetrical along the horizontal plane passing through the center of the Tesla valve pipe 3, and the top of the vertical section of the first fixing block 41 is higher than that of the horizontal section. The positioning rod 51 is horizontal and is abutted against the first fixing block 41, the two pull rods 5 are respectively positioned at the front side and the rear side of the first fixing block 41 and the second fixing block 42, and two ends of the two pull rods 5 are respectively hinged with the cover plate 1 and the positioning rod 51.

The specific implementation process is as follows:

when needing to unload cement, earlier artifical pass through the bolt fastening with apron 1 on tubbiness container 2, and insert the lower extreme of tesla valve pipe 3 in the constant head tank, then rotate pull rod 5, rotate locating lever 51 to first fixed block 41, under the effect of pull rod 5, locating lever 51 is pressed first fixed block 41 downwards this moment, thereby press fixed cover 4 downwards, make fixed cover 4 offset with the top of sealed pad, and because the inner wall of the first fixed part of fixed cover 4 and the outer wall of tesla valve pipe 3 upper end are the inclined plane, so when fixed cover 4 slides downwards, press tesla valve pipe 3, avoid appearing the gap between the left and right sides two parts of tesla valve pipe 3, in addition, fixed cover 4 still presses tesla valve pipe 3 in the bottom of sealed pad this moment, avoid appearing the gap between the lower extreme of tesla valve pipe 3 and the sealed pad. Then will with the pipeline of the jar body intercommunication of powder material transport vechicle and the upper end intercommunication of tesla valve pipe 3, will with the pipeline and the gas outlet 13 intercommunication of the container intercommunication of storing cement on the building site, at this moment when the high-pressure air current is wrapped and is being carried cement and pass through tesla valve pipe 3, tesla valve pipe 3 can not lead to the fact the air current and block, and at last the air current is wrapped and is being carried cement and get into the container of storing cement on the building site from blast pipe 11.

When cement needs to be sampled, gas is stopped to be introduced into the tank body of the powder material transport vehicle, no gas enters the Tesla valve pipe 3, the pull rod 5 rotates reversely, the positioning rod 51 is taken down from the first fixing block 41, the fixing sleeve 4 is loosened, the lower ends of the fixing sleeve 4 and the Tesla valve pipe 3 are taken out from the positioning groove, the Tesla valve pipe 3 is overturned for 180 degrees, the upper end of the Tesla valve pipe 3 faces downwards and extends into the positioning groove, the steps are repeated, the positioning rod 51 is pressed on the second fixing block 42, the fixing sleeve 4 and the Tesla valve pipe 3 are pressed on the positioning groove, and the Tesla valve pipe 3 is quickly mounted again.

Then to the internal gas that lets in of jar of powder material transport vechicle, gaseous parcel cement gets into in the tesla valve pipe 3, then under the effect of the arc passageway of tesla valve pipe 3, the atmospheric pressure of tesla valve pipe 3 lower extreme reduces, reduces the atmospheric pressure in the container of apron 1 below, makes cement collected in the container of apron 1 below to avoid the air current to lead to a large amount of cement to diffuse fast to the air in.

And after the cement is collected, repeating the steps again, turning the Tesla valve pipe 3 for 180-degree reset, and continuously discharging the cement. When the pressure relief device in the embodiment is used for discharging, the cover plate 1 in the embodiment can position the pipeline communicated with the tank body of the powder material transport vehicle and the pipeline communicated with the container on the construction site, so that the pipeline is prevented from shifting, the pipeline is prevented from being separated from the tank body of the powder material transport vehicle or the container on the construction site, and cement stored in the tank body of the powder material transport vehicle and the container on the upper end of the construction site is leaked.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The cement sampling pressure relief device is characterized in that: including the decompression unit, the decompression unit includes tesla valve pipe and apron, tesla valve pipe both ends are inlet end and decompression end respectively, tesla valve pipe both ends all can dismantle with the apron and be connected, be fixed with the intake pipe with tesla valve pipe intercommunication on the apron.

2. A cement sampling depressor as claimed in claim 1 wherein: the pressure reduction unit comprises a fixing sleeve, the fixing sleeve is sleeved on the Tesla valve pipe, and the inner wall of the fixing sleeve is abutted to the outer wall of the Tesla valve pipe.

3. A cement sampling depressor as claimed in claim 2 wherein: the two sides of the fixed sleeve are respectively provided with a fixing unit, each fixing unit comprises a pull rod, a positioning rod and a first fixing block, and the two ends of each pull rod are respectively hinged with the cover plate and the positioning rod; the first fixing block is fixed on the fixing sleeve, and the positioning rod is abutted to the first fixing block.

4. A cement sampling depressor as claimed in claim 3 wherein: the longitudinal section of the first fixed block is L-shaped.

5. A cement sampling depressor according to claim 4 wherein: and a second fixed block is arranged below the first fixed block, and the second fixed block and the first fixed block are symmetrical along the center of the fixed sleeve.

6. A cement sampling depressor as claimed in claim 3 wherein: the cover plate is provided with a positioning groove communicated with the air inlet pipe, the bottom of the positioning groove is fixedly provided with an elastic pad, and the lower end of the fixed sleeve is positioned in the positioning groove and is abutted to the elastic pad.

7. A cement sampling depressor as claimed in claim 3 wherein: the outer wall of the Tesla valve tube and the inner wall of the fixed sleeve are both prism-shaped.

8. A cement sampling depressor according to claim 7 wherein: the width of the middle part of the outer wall of the Tesla valve pipe is larger than the width of the two ends.

9. A cement sampling depressor as claimed in claim 8 wherein: the fixing sleeve comprises a first fixing part and a second fixing part which are opposite to the upper end and the lower end of the Tesla valve pipe respectively, and the first fixing part and the second fixing part are fixed.