CN210786477U

CN210786477U - Online filter material monitoring device of pressure filter

Info

Publication number: CN210786477U
Application number: CN201921189764.4U
Authority: CN
Inventors: 秦毓武; 岳璐; 宁毅
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-06-19
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a pressure filter online filter material monitoring devices. The device comprises a monitoring branch pipe, a detector and a monitoring valve, wherein the monitoring branch pipe is arranged between a water outlet of a filter and a water outlet main pipe, the monitoring branch pipe is sequentially provided with a first valve, the detector and a second valve, the detector is of a cylindrical structure, the whole body of the detector is transparent, a filter screen is arranged in the cylindrical structure, and the size of the filter screen is one-stage smaller than the smallest filter material in the filter; the arrangement direction of the monitoring branch pipe is consistent with the water flow direction. The utility model discloses an installation on-line monitoring device makes the filter can observe the filter material state at any time at the operation in-process, can in time withdraw from the filter operation when having the problem, has protected equipment play water quality of water effectively, has ensured safety in production, has shortened dimension and has examined cycle and expense.

Description

Online filter material monitoring device of pressure filter

Technical Field

The utility model relates to a pressure filter online filter material monitoring devices belongs to filter technical field.

Background

The water treatment in the industrial circulating water system mainly comprises the steps of cooling and filtering the circulating water, wherein a water supply pump is usually arranged, the longest used water purifying device is a pressure filter, and the pressure filter is a pressure-bearing closed filtering device (the internal structure is shown in figure 1) which can send water to a water consumption point by using the filtered residual pressure. The filter is internally provided with specific filter materials such as anthracite, pebble, sea sand, fine sand and the like according to the needs of users, the level and the proportion of each filter material are set according to the needs, the lower end of the water outlet of the filter is provided with a filter plate with a filter cap, the inlet water of the filter is purified by the filter materials with different meshes, then enters the water outlet pipe after passing through the filter cap (the interception filter material) on the filter plate at the lower end, and then enters the next process flow. In the operation process, the washing strength is too high or the water distribution filter cap is damaged, the support can displace to cause a large amount of filter materials to enter a system along with water flow to damage a water pipeline, one part of filter materials is deposited in the water tank to reduce the effective volume of the water tank, and one part of filter materials enters a production line along with pressurized water to cause nozzle blockage to influence production.

That is, in the prior art, when the filter runs and leaks, the filter material running and leaking problem of the filter can be found after the filter material such as a user nozzle is blocked or a water outlet pipe and mud are backwashed is deposited, and the loss of the next process is caused at the moment.

The method for judging the phenomena of material running and material leakage comprises the following steps:

the method comprises the following steps: opening a drain valve regularly to observe and check whether filter materials flow out along with water flow;

the second method comprises the following steps: opening a water outlet valve for sampling, and checking whether filter material residues exist in outlet water or not;

the third method comprises the following steps: and the user finds the feedback information after the blockage.

All the three methods have hysteresis, so that the problems are expanded, a large amount of manpower, material resources and financial resources are consumed for treatment, the period is long, and the influence is severe.

Disclosure of Invention

The utility model aims at providing a pressure filter online filter material monitoring devices ensures to implement monitoring filter material user state in service, stops to run the material, leaks the material problem and enlarges, prolongs filter operation cycle, ensures that quality of water is qualified.

The technical scheme of the utility model is that: a filter material interception monitoring device is installed between a water outlet of the filter and a water outlet main pipe, and the phenomenon of material leakage can be monitored from an observation pipeline in the operation process. The problems can not be enlarged due to timely discovery, and the treatment is time-saving, labor-saving and cost-saving. The valve is opened when the filter operates, the water flow of the filter is monitored on line through the monitoring device, the filter material is leaked or not, the sampling inspection is changed into on-line monitoring, and the on-line detection, the on-line detection and the on-line processing are realized.

The utility model provides an online filter material monitoring device of a pressure filter, which comprises a monitoring branch pipe, a detector and a monitoring valve, wherein the monitoring branch pipe is arranged between a water outlet of the filter and a water outlet main pipe, the monitoring branch pipe is sequentially provided with a first valve, the detector and a second valve, the detector is of a cylinder structure, the whole body is transparent, a filter screen is arranged in the cylinder structure, and the size of the filter screen is one-level smaller than the minimum filter material in the filter; the arrangement direction of the monitoring branch pipe is consistent with the water flow direction.

In the device, the bottom surface of the cylinder detector is provided with a through hole, a filter screen is arranged at the through hole, and the filter screen is arranged at the junction of the monitoring pipeline and the detector.

The cylinder detector is transparent tempered glass, so that the leakage condition in the pipe can be monitored conveniently.

The monitoring device is arranged at the bottom end of the water outlet pipe of the pressure filter, and the water outlet end of the monitoring device is connected with the center of the pipe at the lower stage of the water outlet pipe and is consistent with the water flow direction.

DN400 water outlet pipe suggests DN80 for monitoring branch pipe, DN200 water outlet pipe suggests DN40 for monitoring branch pipe.

The utility model provides a device, the on-the-spot personnel receive on-line lacing film frame (a device of monitoring quality of water, take out one section sampling tube of water end branch pipe preparation glass transparent pipe wall, wherein put into different material sheetmetals as required, rivers flow back the system after the sheetmetal) the inspiration, the motion trail that is the parabola and subsides according to hydrodynamics characteristic and the filter material of rivers in the pipeline, select to install the filter material between filter delivery port and water outlet header and hold back monitoring devices, the filter screen that holds back the inside packing of device accords with this filter material size (select a little purpose filter screen according to actual filter material size) has the hourglass material phenomenon to hold back by the filter screen in operation one, monitor from the monitoring pipeline promptly. When the phenomenon of material leakage of the water outlet pipeline is found, the filter is withdrawn from operation and is overhauled in time, the problem is prevented from being enlarged, and the filter is time-saving, labor-saving and cost-saving to process.

When the normal filter is put into operation, the water outlet valve provided with the monitoring device is opened, the water flow of the filter is monitored on line through the monitoring device, whether the filter material leaks or not is checked, the passive inspection is realized on-line monitoring, and the instant discovery and timely treatment are realized.

The utility model has the advantages that:

through the installation of the on-line monitoring device, the filter material state can be observed at any time in the operation process of the filter, the filter can be withdrawn from the operation in time when problems exist, the water quality of the discharged water of the equipment is effectively protected, the safety production is ensured, and the maintenance period and the maintenance cost are shortened.

Drawings

Fig. 1 is the structure schematic diagram of the online filter material monitoring device of the pressure filter.

In the figure, 1 is a pressure filter, 2 is a monitoring branch pipe, 3 is a detector, 4 is a first valve, 5 is a second valve, 6 is a water outlet, 7 is a backwashing water inlet, 8 is a water inlet, 9 is a water outlet, 10 is an exhaust pipe, 11 is a blow-off valve, 12 is a baffle, 13 is a manhole, 14 is coal, 15 is sand, and 16 is a water distributor.

Detailed Description

The present invention is further illustrated by, but is not limited to, the following examples.

Example 1:

as shown in fig. 1, the utility model provides an online filter material monitoring device for pressure filter, which comprises a monitoring branch pipe 2, a detector 3 and a monitoring valve, wherein the monitoring branch pipe 2 is arranged between a water outlet of the pressure filter 1 and a water outlet main pipe, a first valve 4, a detector 3 and a second valve 5 are sequentially arranged on the monitoring branch pipe 2, the detector 3 is of a cylinder structure, the whole body is transparent, a filter screen is arranged in the cylinder structure, and the size of the filter screen is one-step smaller than the smallest filter material in the filter; the arrangement direction of the monitoring branch pipe is consistent with the water flow direction.

In the device, the bottom surface of the cylinder detector 3 is provided with a through hole, a filter screen is arranged at the through hole, and the filter screen is arranged at the junction of the monitoring pipeline and the detector.

The whole body of the cylinder detector is made of transparent toughened glass, so that the material leakage condition in the pipe can be monitored conveniently.

The monitoring device is arranged at the bottom end of the water outlet pipe of the pressure filter 1, and the water outlet end of the monitoring device is connected with the center of the pipe at the lower stage of the water outlet pipe and is consistent with the water flow direction.

The specific operation process is as follows: a branch pipe of a punching frame is arranged at the position of the center bottom of a selected pipe at a water outlet pipe at the bottom end of a filter, a valve is installed, the size of the branch pipe is within the range of water outlet pipes (DN 80 for DN400 water outlet pipe advising branch pipe and DN40 for DN200 water outlet pipe advising branch pipe), water inlet valves and water outlet valves with corresponding sizes are selected, the water outlet pipe of a monitoring device is installed at the rear end of a water outlet valve of the filter in a punching mode, and the water outlet end of the monitoring device is connected at the center position of a pipe at the lower level of the water outlet pipe and is consistent with the direction of water.

When the filter material monitoring device is manufactured, a filter screen with a specific size (one level smaller than the minimum filter material in the filter) is installed inside a full pipe (no gap can be formed around the pipe wall).

The pipe wall is made of transparent and scouring-resistant materials, and is solid and convenient to observe.

When the filter is in a working state when the circulating water is normally filtered, the water inlet valve and the water outlet valve of the valve filter material monitoring device are opened, the online monitoring of the filter materials is realized, and when the filter materials in the observation pipe are intercepted, the abnormality of the filter cap or the support plate of the filter is indicated, the filter cap or the support plate is required to be immediately checked and treated, so that the problem is prevented from being enlarged. When the monitoring device needs maintenance, the valve is closed, and the device is dismounted for maintenance.

The specific manufacturing method comprises the following steps:

1. the filter material monitoring device is internally provided with filter screens (the filter screen with one smaller mesh is selected according to the size of the actual filter material) with the mesh number matched with the filter material of the filter.

2. The monitoring device is made of transparent materials, the installation position is arranged at the bottom end of the water outlet pipe of the filter, the water outlet end of the monitoring device is connected with the center of the pipe at the lower stage of the water outlet pipe and is consistent with the water flow direction, and the pipe diameter of the monitoring sampling pipe is suitable for the recommended range of the normal water outlet pipe of the filter (DN 80 for the recommended branch pipe of the DN400 water outlet pipe and DN40 for the recommended branch pipe of the DN200 water outlet pipe).

3. When backwashing water inlet, the water inlet and outlet of the monitoring pipe are closed in time, and the pressure relief of the water flow backwashing pressure is avoided.

Claims

1. The utility model provides a pressure filter online filter material monitoring devices which characterized in that: the water outlet device comprises a monitoring branch pipe, a detector and a monitoring valve, wherein the monitoring branch pipe is arranged between a water outlet of a filter and a water outlet main pipe, the monitoring branch pipe is sequentially provided with a first valve, the detector and a second valve, the detector is of a cylindrical structure, the whole body of the detector is transparent, a filter screen is arranged in the cylindrical structure, and the size of the filter screen is one-stage smaller than the smallest filter material in the filter; the arrangement direction of the monitoring branch pipe is consistent with the water flow direction.

2. The pressure filter on-line filter material monitoring device of claim 1, characterized in that: the bottom surface of the cylinder detector is provided with a through hole, a filter screen is arranged at the through hole, and the filter screen is arranged at the junction of the monitoring pipeline and the detector.

3. The pressure filter on-line filter material monitoring device of claim 1, characterized in that: the whole body of the cylinder detector is made of transparent toughened glass, so that the material leakage condition in the pipe can be monitored conveniently.

4. The pressure filter on-line filter material monitoring device of claim 1, characterized in that: when the pipe diameter of the water outlet pipe of the filter is DN400mm, the pipeline of DN80mm is used as the monitoring branch pipe.

5. The pressure filter on-line filter material monitoring device of claim 1, characterized in that: when the pipe diameter of the water outlet pipe of the filter is DN200mm, the pipeline of DN40mm is used as the monitoring branch pipe.