CN220104259U

CN220104259U - Liquid metering device

Info

Publication number: CN220104259U
Application number: CN202321618196.1U
Authority: CN
Inventors: 王培秀; 张海华; 王达; 赵昌友
Original assignee: Shantui Janeoo Machinery Co Ltd
Current assignee: Shantui Janeoo Machinery Co Ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-11-28
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses a liquid metering device, which comprises a conveying pipe, a flowmeter and a metering scale, wherein the front end of the conveying pipe is connected with a feeding pipe through a liquid filtering device, the other end of the feeding pipe is connected with a water source through a water pump, the rear end of the conveying pipe extends into a hopper of the metering scale, the flowmeter is arranged in the middle of the conveying pipe, a pneumatic butterfly valve is arranged at the front end of the flowmeter on the conveying pipe, and a gate valve is arranged at the bottom of the metering scale; one end of the conveying pipe extends into the metering scale, so that liquid is prevented from splashing and scattering; the front end of the conveying pipe is connected with the feeding pipe through the liquid filtering device, and the liquid filtering device can filter liquid, so that the metering accuracy of the liquid weight is prevented from being influenced by impurities in the liquid; secondly, the purity of the liquid entering the concrete mixing plant can be ensured, and the quality of downstream products is improved; in addition, the metering scale and the flowmeter are arranged at the same time, and the metering result of the liquid can be calibrated through comparison of output results.

Description

Liquid metering device

Technical Field

The present utility model relates to metering devices, and more particularly to a liquid metering device.

Background

In the high-precision concrete proportioning requirement, the mass of concrete is closely related to the weight of added water, the amount of water to be added needs to be accurately weighed in the process of manufacturing the concrete, and the amount of water to be added generally needs to be measured by a liquid measuring device.

In the prior art, through searching, the utility model patent with the Chinese patent publication number of CN211085439U discloses a liquid material metering device, which mainly comprises a feeding pipe a, a conveying pipe b, a discharging pipe c, a baffle d, a bottom plate e and a metering scale f, wherein a liquid flowmeter m is arranged on one side of the conveying pipe b. According to the technical scheme, the flow and the weight of liquid can be measured through the liquid flowmeter and the measuring scale, so that the water quantity can be accurately controlled.

However, the prior art solution described above, when implemented, has been found to have the following drawbacks: and (3) a step of: the bottom of the discharging pipe does not extend into the hopper of the metering scale, so that liquid is easy to splash and scatter; and II: the liquid is not filtered before weighing and metering, and impurities in the liquid easily cause metering errors.

Disclosure of Invention

In view of the defects and drawbacks existing in the prior art, the utility model aims to provide a liquid metering device, which solves the problems that the bottom of a discharging pipe of the liquid metering device in the prior art does not extend into a hopper of a metering scale, liquid is easy to splash and scatter, liquid is not filtered before weighing and metering, and metering errors are easy to be caused by impurities in the liquid.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a liquid metering device, includes conveying pipeline, flowmeter and measurement scale, the conveying pipeline front end be connected with the inlet pipe through liquid filter equipment, the inlet pipe other end be connected with the water source through the water pump, the conveying pipeline rear end stretches into in the hopper of measurement scale, the flowmeter setting in the middle part of conveying pipeline, be provided with pneumatic butterfly valve at the front end of flowmeter on the conveying pipeline, the bottom of measurement scale is provided with the gate valve.

As a further improvement of the utility model, the liquid filtering device comprises a filter cylinder, a liquid inlet is arranged at one side of the upper end of the filter cylinder, a liquid outlet is arranged at one side of the lower end of the filter cylinder, a feeding pipe is connected with the liquid inlet, a conveying pipe is connected with the liquid outlet, a filter screen is arranged at the upper end in the filter cylinder, the liquid inlet is positioned at the upper part of the filter screen, and a sedimentation tank protruding downwards is arranged at the lower end of the liquid outlet at the bottom end of the filter cylinder.

As a further improvement of the utility model, a conical cylinder is arranged at the position of the liquid outlet in the filter cylinder, the top of the conical cylinder protrudes to one side far away from the liquid outlet, and a plurality of filter holes are arranged on the conical cylinder.

As a further improvement of the utility model, the bottom of the sedimentation tank is provided with a water discharge switch.

As a further improvement of the utility model, the feed delivery pipe comprises a plurality of water diversion pipes which are connected through pipe joints.

Compared with the prior art, the utility model has the following advantages:

1. the end part of the conveying pipe is close to one end of the metering scale and extends into the metering scale, so that liquid is prevented from splashing and scattering; the pneumatic butterfly valve is arranged at the front end of the flowmeter, when the water pump is used for supplying water, the pneumatic butterfly valve is opened, and when the water pump stops supplying water, the pneumatic butterfly valve is closed, so that the flowmeter is filled with water, and the metering precision of the flowmeter is ensured;

the front end of the conveying pipe is connected with the feeding pipe through the liquid filtering device, and the liquid filtering device can filter liquid, so that the metering accuracy of the liquid weight is prevented from being influenced by impurities in the liquid; secondly, the purity of the liquid entering the concrete mixing plant can be ensured, and the quality of downstream products is improved; in addition, the metering scale and the flowmeter are arranged at the same time, the metering result of the liquid can be calibrated by comparing the output results (the liquid results metered by the metering scale and the flowmeter are correspondingly unified), when errors are found, the machine halt can be found timely, the accuracy of the water quantity of the entering concrete is guaranteed, and the product quality is improved.

2. Through setting the liquid filtering device as a filter cartridge, the upper end of the filter cartridge is provided with a filter screen, the lower end of the filter cartridge is provided with a sedimentation tank, and the filter screen can filter liquid entering the filter cartridge and remove impurities in the liquid entering the filter cartridge; and a sedimentation tank is arranged at the bottom of the filter cartridge, and impurities in the liquid can be precipitated at the bottom.

3. Through establishing the toper section of thick bamboo in the position of cartridge filter liquid outlet, be provided with a plurality of filtration holes on the toper section of thick bamboo, the toper section of thick bamboo can carry out secondary filtration to the liquid in the cartridge filter, and toper section of thick bamboo shape, not only can increase filtration area, and filterable impurity can be along the conical surface of toper section of thick bamboo downwardly sliding moreover, reduces the deposit of filtration impurity on the toper section of thick bamboo.

4. Through being provided with the drain switch in sedimentation tank bottom, when wasing the cartridge filter, can open the drain switch and waterproof, improve the convenience.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a cross-sectional view of a filter cartridge;

FIG. 4 is an enlarged view of FIG. 3 at A;

in the figure: 1. a material conveying pipe; 11. a water diversion pipe; 12. a pipe joint; 2. a flow meter; 3. a metering scale; 4. a liquid filtration device; 41. a filter cartridge; 42. a filter screen; 43. a sedimentation tank; 44. a conical cylinder; 45. a water discharge switch; 46. a water outlet; 5. a feed pipe; 6. a water pump; 7. pneumatic butterfly valve; 8. a gate valve; 9. a water source; 10. and a fixing frame.

Detailed Description

The utility model is described in further detail below with reference to fig. 2-4. For the sake of clarity, only the structures related to the utility model are shown in the drawings.

For convenience of description, the coordinate system is defined as shown in fig. 2, and the left-right direction is a transverse direction, the front-rear direction is a longitudinal direction, and the up-down direction is a vertical direction.

The embodiment of the utility model discloses a liquid metering device. Referring to fig. 2, a liquid metering device comprises a conveying pipe 1, a flowmeter 2 and a metering scale 3, wherein the front end of the conveying pipe 1 is connected with a feeding pipe 5 through a liquid filtering device 4, the other end of the feeding pipe 5 is connected with a water source 9 through a water pump 6, and the rear end of the conveying pipe 1 extends into a hopper of the metering scale 3 to prevent liquid from splashing; the conveying pipe 1 can be supported and fixed by the fixing frame 10 above the weighing scale 3, so that the weight of the conveying pipe 1 is prevented from being borne on the weighing scale 3. The flowmeter 2 set up in the middle part of conveying pipeline 1, be provided with pneumatic butterfly valve 7 on the conveying pipeline 1 in the front end of flowmeter 2, when water pump 6 was gone up, pneumatic butterfly valve 7 opened, when water pump 6 stopped the water supply, pneumatic butterfly valve 7 closed for the flowmeter 2 the inside is full of water, guarantees the measurement precision of flowmeter 2. In addition, a gate valve 8 is arranged at the bottom of the metering scale 3, so that the outflow of liquid can be controlled. The conveying pipe 1 comprises a plurality of water diversion pipes 11 when in arrangement, and the water diversion pipes 11 can be reasonably arranged according to the actual pipeline direction, and are connected through pipe joints 12.

The liquid filtering device 4 can filter liquid, firstly, the existence of impurities in the liquid is prevented from influencing the metering accuracy of the liquid weight; secondly, the purity of the liquid entering the concrete mixing plant can be ensured, and the quality of downstream products is improved; in addition, the metering result of the liquid can be calibrated by the simultaneous setting of the metering scale 3 and the flowmeter 2 and the comparison of the output results (the corresponding and unified liquid results metered by the metering scale 3 and the flowmeter 2), and when the error is found, the shutdown can be found in time, so that the accuracy of the water quantity of the entering concrete is ensured, and the product quality is improved.

In this embodiment, as shown in fig. 3, the liquid filtering device 4 includes a filter cartridge 41, a liquid inlet is disposed on one side of an upper end of the filter cartridge 41, a liquid outlet is disposed on one side of a lower end of the filter cartridge 41, a feed pipe 5 is connected with the liquid inlet, a feed pipe 1 is connected with the liquid outlet, a filter screen 42 is disposed on an inner upper end of the filter cartridge 41, the liquid inlet is disposed on an upper portion of the filter screen 42, and a sedimentation tank 43 protruding downwards is disposed at a lower end of the liquid outlet at a bottom end of the filter cartridge 41. The sedimentation tank 43 bottom is provided with water drain 46, is provided with the water drain switch 45 that can open or close on the water drain 46, when wasing cartridge 41, can open water drain switch 45 and waterproof, improves the convenience. The filter screen 42 can filter the liquid entering the filter cartridge 41 to remove impurities in the liquid entering the filter cartridge 41; while a sedimentation tank 43 is provided at the bottom of the filter cartridge 41, impurities in the liquid may be precipitated at the bottom.

In addition, as shown in fig. 4, a conical cylinder 44 is disposed at the position of the liquid outlet in the filter cylinder 41, the top of the conical cylinder 44 protrudes to a side far away from the liquid outlet, a plurality of filtering holes are disposed on the conical cylinder 44, the conical cylinder 44 is provided with a plurality of filtering holes through the conical cylinder 44 disposed at the position of the liquid outlet in the filter cylinder 41, the conical cylinder 44 can perform secondary filtering on the liquid in the filter cylinder 41, and the shape of the conical cylinder 44 can not only enlarge the filtering area, but also the filtered impurities can slide downwards along the conical surface of the conical cylinder 44, so that the deposition of the filtered impurities on the conical cylinder 44 is reduced.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. It should be understood that the detailed description is presented for purposes of understanding only and is not intended to limit the utility model to all other embodiments that may be obtained by one skilled in the art without making any inventive effort.

Claims

1. The utility model provides a liquid metering device, includes conveying pipeline, flowmeter and measurement scale, its characterized in that: the front end of the conveying pipe is connected with the feeding pipe through the liquid filtering device, the other end of the feeding pipe is connected with a water source through the water pump, the rear end of the conveying pipe stretches into a hopper of the metering scale, the flowmeter is arranged in the middle of the conveying pipe, a pneumatic butterfly valve is arranged at the front end of the flowmeter on the conveying pipe, and a gate valve is arranged at the bottom of the metering scale.

2. A liquid metering device as claimed in claim 1 wherein: the liquid filtering device comprises a filtering cylinder, wherein one side of the upper end of the filtering cylinder is provided with a liquid inlet, one side of the lower end of the filtering cylinder is provided with a liquid outlet, a feeding pipe is connected with the liquid inlet, a conveying pipe is connected with the liquid outlet, the upper end of the filtering cylinder is provided with a filter screen, the liquid inlet is arranged on the upper portion of the filter screen, and a downward convex sedimentation tank is arranged at the lower end of the liquid outlet at the bottom end of the filtering cylinder.

3. A liquid metering device as claimed in claim 2 wherein: the filter cartridge is characterized in that a conical cylinder is arranged at the position of the liquid outlet in the filter cartridge, the top of the conical cylinder protrudes to one side far away from the liquid outlet, and a plurality of filter holes are formed in the conical cylinder.

4. A liquid metering device as claimed in claim 3 wherein: the bottom of the sedimentation tank is provided with a water discharge switch.

5. A liquid metering device as claimed in any one of claims 1 to 4 wherein: the conveying pipe comprises a plurality of water diversion pipes which are connected through pipe joints.