Device and method for quickly discovering material leakage of V-shaped filter tank

Abstract

The invention discloses a device and a method for quickly discovering material leakage of a V-shaped filter tank, and relates to the technical field of V-shaped filter tanks, the device comprises a water collecting piece, a main drainage pipe, a branch drainage pipe, a gravity switch and a material leakage observation box, the water collecting piece is arranged at the outlet end of a backwashing drainage channel of the V-shaped filter tank; one end of the main drainage pipe extends into the backwash drainage channel and is connected and communicated with the water collecting piece, and the other end is communicated with a drainage facility; the top of the drainage branch pipe is connected and communicated with the bottom of the drainage main pipe, and mixed water with a filter material in the drainage main pipe can be deposited from the drainage branch pipe when passing through the top of the drainage branch pipe; the gravity switch is arranged on the drainage branch pipe and can open the drainage branch pipe after the filter material with the designed weight is deposited on the top of the gravity switch, and close the drainage branch pipe when the top of the gravity switch does not reach the designed gravity; the material leakage observation box is arranged at the bottom of the drainage branch pipe and can receive the mixed water with the filter material discharged by the drainage branch pipe, the structure is simple, use is convenient, and the material leakage phenomenon can be found in time.

Description

Technical Field

[0001] The invention relates to the technical field of V-type filter tanks, and in particular to a device and method for quickly discovering material leakage in a V-type filter tank. Background Art

[0002] The V-type filter is a water treatment structure in a water plant. It is a fast filter that filters at a constant water level and uses homogeneous filter media. It is a technology introduced by my country from the French Degremont Company in the late 1980s. The V-type filter has varying degrees of sand leakage during backwashing, which is a common problem in water plants and a problem that has long plagued the industry.

[0003] The main reasons for material leakage during backwashing in V-type filters include excessive backwashing intensity, uneven backwashing, and uneven backwashing drainage. Excessive backwashing intensity will cause the filter media to be subjected to excessive impact force, causing it to fall off the filter bed, resulting in material leakage; uneven backwashing can cause filter media to be lost in some areas; poor drainage of the backwash drainage system will cause some filter media to be carried away by the water flow, resulting in material leakage. Therefore, timely detection of material leakage can allow early response measures to avoid further loss of filter media. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for quickly detecting material leakage in a V-type filter tank, so as to solve the problems existing in the above-mentioned prior art. The device and method have a simple structure, are easy to use, and can detect material leakage in time.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a device for quickly discovering material leakage in a V-type filter tank, comprising: a water collecting part, a drainage main pipe, a drainage branch pipe, a gravity switch and a material leakage observation box, wherein the water collecting part is arranged at the outlet end of a backwash drainage channel of the V-type filter tank; one end of the drainage main pipe extends into the backwash drainage channel to be connected and communicated with the water collecting part, and the other end is communicated with a drainage facility; the top of the drainage branch pipe is connected and communicated with the bottom of the drainage main pipe and can make mixed water with filter material in the drainage main pipe deposit from the drainage branch pipe when passing through the top of the drainage branch pipe; the gravity switch is arranged on the drainage branch pipe and can open the drainage branch pipe after the filter material of the designed weight is deposited on the top of the gravity switch, and close the drainage branch pipe when the top of the gravity switch does not reach the designed gravity; the material leakage observation box is arranged at the bottom of the drainage branch pipe and can receive the mixed water with filter material discharged from the drainage branch pipe.

[0007] Preferably, the water collecting member is a water collecting bucket.

[0008] Preferably, the drainage main pipe includes a vertical main pipe and a transverse main pipe, the top of the vertical main pipe is connected and communicated with the bottom of the water collecting bucket, one end of the transverse main pipe is connected and communicated with the bottom end of the vertical main pipe, and the other end is communicated with the drainage equipment, the transverse main pipe is horizontally arranged, and the drainage branch pipe is communicated with the bottom of the transverse main pipe.

[0009] Preferably, the transverse main pipe is provided with a semicircular hole, the semicircular hole is located in the lower semicircle of the transverse main pipe, and the top of the drainage branch pipe is connected to the semicircular hole.

[0010] Preferably, the drainage branch pipe includes a first branch pipe and a second branch pipe, the top of the first branch pipe is connected to the transverse main pipe, the bottom of the first branch pipe is connected to the top of the gravity switch, the top of the second branch pipe is connected to the bottom of the gravity switch, and the bottom of the second straight pipe is arranged above the material running observation box.

[0011] Preferably, the gravity switch includes a shell, a movable valve core and a reset spring, the top of the shell is connected to and communicated with the bottom end of the first branch pipe, the bottom end of the shell is communicated with the top of the second straight pipe, the movable valve core is slidingly and sealingly connected in the shell, the top of the reset spring is fixedly connected to the bottom of the movable valve core, and the other end is fixedly connected to the shell, when the filter material deposition weight reaches the design weight, the reset spring is compressed, and the movable valve core slides downward to make the shell connect the first branch pipe with the second branch pipe; when the filter material flows out, the restoring force of the reset spring resets the movable valve core to disconnect the first branch pipe and the second branch pipe.

[0012] Preferably, a rubber seal is provided around the circumference of the movable valve core.

[0013] The present invention also provides a method for using the device for quickly detecting material leakage in a V-type filter as described in any one of the above items, comprising the following steps:

[0014] When the V-type filter tank is backwashed, the backwash water carries the filter media and flows into the water collection piece along the drainage channel; the mixed water with the filter media flows into the drainage main pipe through the water collection piece. Since the filter media in the mixed water with the filter media has a higher specific gravity than water, when the filter media passes over the drainage branch pipe during the flow process, the filter media is deposited into the drainage branch pipe and continuously deposited above the gravity switch. When the filter media is deposited above the gravity switch to the designed gravity, the gravity switch is opened, and the mixed water with the filter media flows into the material running observation box through the drainage branch pipe;

[0015] At this time, the staff can quickly determine whether material leakage occurs by observing whether sand-water mixture appears in the material leakage observation box;

[0016] If material leakage is found, reduce the backwash intensity to reduce the impact on the filter media and avoid further loss of filter media.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The purpose of the present invention is to provide a device and method for quickly discovering material leakage in a V-type filter tank. When the V-type filter tank is backwashed, the backwash water carries the filter material and flows into the water collecting part along the drainage channel; the mixed water with the filter material flows into the drainage main pipe through the water collecting part. Since the filter material in the mixed water with the filter material has a specific gravity greater than that of water, when passing over the top of the drainage branch pipe during the flow, the filter material is deposited into the drainage branch pipe and continuously deposited above the gravity switch. When the filter material is deposited above the gravity switch to the designed gravity, the gravity switch is opened, and the mixed water with the filter material flows into the material leakage observation box through the drainage branch pipe; if a sand-water mixture appears in the material leakage observation box, material throwing occurs. The present invention has a simple structure, is easy to use, and can detect material leakage in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a device for quickly detecting material leakage in a V-type filter provided by the present invention;

[0021] In the figure: 1. Water collecting bucket; 2. Drainage main pipe; 3. Drainage branch pipe; 4. Gravity switch; 5. Material leakage observation box; 6. Backwash drainage channel; 7. Drainage equipment. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The purpose of the present invention is to provide a device and method for quickly detecting material leakage in a V-type filter tank, so as to solve the problems existing in the above-mentioned prior art. The device and method have a simple structure, are easy to use, and can detect material leakage in time.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Embodiment 1

[0026] This embodiment provides a device for quickly detecting material leakage in a V-type filter tank. Figure 1 As shown, it includes: a water collecting part, a drainage main pipe 2, a drainage branch pipe 3, a gravity switch 4 and a material running observation box 5, the water collecting part is arranged at the outlet end of the backwash drainage channel 6 of the V-type filter tank; one end of the drainage main pipe 2 extends into the backwash drainage channel 6 and is connected and communicated with the water collecting part, and the other end is connected with a drainage facility; the top of the drainage branch pipe 3 is connected and communicated with the bottom of the drainage main pipe 2 and can make the mixed water with filter material in the drainage main pipe 2 deposit from the drainage branch pipe 3 when passing through the top of the drainage branch pipe 3; the gravity switch 4 is arranged on the drainage branch pipe 3 and can open the drainage branch pipe 3 after the filter material of the designed weight is deposited on the top of the gravity switch 4, and close the drainage branch pipe 3 when the top of the gravity switch 4 does not reach the designed gravity; the material running observation box 5 is arranged at the bottom of the drainage branch pipe 3 and can receive the mixed water with filter material discharged from the drainage branch pipe 3. Through the synergistic effect of the water collecting part, the drainage main pipe 2, the drainage branch pipe 3, the gravity switch 4 and the material running observation box 5, the material running situation can be discovered in time during the backwashing process of the V-type filter tank. When material leakage occurs, the mixed water with filter media can pass through the water collecting part, the main drainage pipe 2, the drainage branch pipe 3 and the gravity switch 4 in sequence, and finally flow into the material leakage observation box 5, so that the staff can quickly judge the occurrence of material leakage.

[0027] In a preferred solution of this embodiment, the water collecting part is a water collecting bucket 1. Using the water collecting bucket 1 as the water collecting part can effectively collect the mixed water in the V-type filter backwash drainage channel 6, improve the collection efficiency, and ensure that the leakage of materials can be discovered in time.

[0028] In a preferred solution of the present embodiment, the drainage main pipe 2 includes a vertical main pipe and a transverse main pipe, the top of the vertical main pipe is connected and communicated with the bottom of the water collecting bucket 1, one end of the transverse main pipe is connected and communicated with the bottom of the vertical main pipe, and the other end is communicated with the drainage device 7, the transverse main pipe is arranged horizontally, and the drainage branch pipe 3 is communicated with the bottom of the transverse main pipe. The drainage main pipe 2 is divided into a vertical main pipe and a transverse main pipe, which can better adapt to different installation positions and drainage requirements. The vertical main pipe is easy to connect with the water collecting bucket 1, the transverse main pipe can be stably connected with the drainage device 7, and at the same time, it provides convenience for the connection of the drainage branch pipe 3, and the horizontal arrangement of the transverse main pipe can prevent the filter material from being deposited in other places.

[0029] In a preferred solution of this embodiment, the transverse main pipe is provided with a semicircular hole, which is located in the lower semicircle of the transverse main pipe, and the top of the drainage branch pipe 3 is connected to the semicircular hole. The provision of the semicircular hole makes the connection between the drainage branch pipe 3 and the transverse main pipe smoother, and the filter material in the mixed water can be more naturally deposited into the drainage branch pipe 3. At the same time, the semicircular hole is located in the lower semicircle of the transverse main pipe, which is conducive to the deposition of the filter material into the drainage branch pipe 3 under the action of gravity.

[0030] In a preferred solution of the present embodiment, the drainage branch pipe 3 includes a first branch pipe and a second branch pipe, the top of the first branch pipe is connected to the transverse main pipe, the bottom of the first branch pipe is connected to the top of the gravity switch 4, the top of the second branch pipe is connected to the bottom of the gravity switch 4, and the bottom of the second straight pipe is arranged above the material leakage observation box 5, and the drainage branch pipe 3 is divided into the first branch pipe and the second branch pipe, which is convenient for the installation and control of the gravity switch 4. When the gravity switch 4 is turned on, the mixed water can smoothly flow from the first branch pipe into the second branch pipe, and finally flow into the material leakage observation box 5, so as to realize the rapid discovery of the material leakage situation.

[0031] In a preferred solution of the present embodiment, the gravity switch 4 includes a housing, a movable valve core and a reset spring. The top of the housing is connected and communicated with the bottom of the first branch pipe, the bottom of the housing is communicated with the top of the second straight pipe, the movable valve core is slidably sealed and connected in the housing, the top of the reset spring is fixedly connected to the bottom of the movable valve core, and the other end is fixedly connected to the housing. When the filter material deposition weight reaches the design weight, the reset spring is compressed, and the movable valve core slides downward to make the housing connect the first branch pipe with the second branch pipe; when the filter material flows out, the restoring force of the reset spring resets the movable valve core, disconnecting the first branch pipe and the second branch pipe. This structural design of the gravity switch 4 can automatically control the on-off of the drainage branch pipe 3 according to the deposition weight of the filter material. When the filter material is deposited to a certain weight, the gravity switch 4 is turned on, and the mixed water flows into the material running observation box 5, so as to realize the rapid discovery of the material running situation; when the filter material flows out, the gravity switch 4 is automatically closed to avoid unnecessary drainage.

[0032] In a preferred solution of the present embodiment, a rubber seal is arranged around the movable valve core. The rubber seal arranged around the movable valve core can improve the sealing performance of the gravity switch 4, prevent leakage of mixed water, and ensure the normal operation of the gravity switch 4.

[0033] Embodiment 2

[0034] This embodiment also provides a method for using the device for quickly detecting material leakage in a V-type filter tank as described in any of the above items, comprising the following steps:

[0035] 1. Installation phase

[0036] The pipeline is installed at the outlet end of the V-type filter backwash drainage channel 6.

[0037] Install the water collecting bucket 1: Fix the water collecting bucket 1 at the front end of the main pipe 2 for collecting backwash drainage, ensuring that the position is accurate so as to effectively collect the backwash drainage.

[0038] Connect the drainage main pipe 2: Connect the drainage main pipe 2 and the water collecting bucket 1 firmly to ensure smooth drainage.

[0039] Install the drainage branch pipe 3: Connect the drainage branch pipe 3 to the middle end of the drainage main pipe 2, and install the gravity switch 4 on the drainage branch pipe 3. Make sure that the gravity switch 4 is installed in a suitable position and can work normally.

[0040] A material running observation box 5 is provided: a material running observation box 5 is provided below the gravity switch 4 so as to observe the material running situation.

[0041] 2. Operation Phase

[0042] During the backwashing process, pay close attention to the material leakage observation box 5.

[0043] When the V-type filter tank is backwashed, the backwash water carries the possible filter material (quartz sand) along the drainage channel and flows into the water collecting bucket 1.

[0044] Then, the sand-water mixture enters the drainage main 2 through the water collecting bucket 1.

[0045] Since the specific gravity of quartz sand is greater than that of water, quartz sand will continuously settle on the gravity switch 4 during the flow process.

[0046] Determine the material leakage situation.

[0047] When the weight of the quartz sand deposits reaches the upper pressure limit of the gravity switch 4, the gravity switch 4 pops open.

[0048] At this time, the quartz sand flows into the material leakage observation box 5 through the drainage branch pipe 3.

[0049] The staff can quickly determine whether material leakage occurs by observing whether a sand-water mixture appears in the material leakage observation box 5 .

[0050] 3. Response measures phase

[0051] If material leakage is found, take the following measures in time:

[0052] Adjust the backwash intensity: Reduce the backwash intensity to reduce the impact on the filter media and avoid further loss of filter media.

[0053] Find equipment and facility faults: Check whether the backwashing is uneven or the backwashing drainage is uneven, and repair the faults in time.

[0054] Change the operation mode: According to the actual situation, adjust the operation mode of the V-type filter to curb the further loss of filter media. Through the above usage method, the patent can be effectively used to quickly discover the loss of filter media in the V-type filter, and take corresponding measures in time to reduce the loss of filter media and improve the operation efficiency and stability of the V-type filter.

[0055] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A device for quickly detecting material leakage in a V-type filter tank, characterized in that: include: A water collecting member, the water collecting member being arranged at the outlet end of the backwash drainage channel of the V-shaped filter tank; A drainage main pipe, one end of which extends into the backwash drainage channel and is connected and communicated with the water collecting member, and the other end of which is connected with a drainage facility; A drainage branch pipe, the top of which is connected and communicated with the bottom of the main drainage pipe and can allow the mixed water with filter material from the main drainage pipe to be deposited from the drainage branch pipe when passing through the top of the drainage branch pipe; A gravity switch, which is disposed on the drainage branch pipe and is capable of opening the drainage branch pipe after a designed weight of filter material is deposited on the top of the gravity switch, and closing the drainage branch pipe when the top of the gravity switch does not reach the designed gravity; as well as A material leakage observation box is arranged at the bottom of the drainage branch pipe and can receive the mixed water with filter material discharged from the drainage branch pipe.

2. The device for quickly detecting material leakage in a V-type filter according to claim 1, characterized in that: The water collecting part is a water collecting bucket.

3. The device for quickly detecting material leakage in a V-type filter according to claim 1, characterized in that: The drainage main pipe includes a vertical main pipe and a transverse main pipe. The top of the vertical main pipe is connected and communicated with the bottom of the water collecting bucket. One end of the transverse main pipe is connected and communicated with the bottom end of the vertical main pipe, and the other end is communicated with the drainage equipment. The transverse main pipe is horizontally arranged, and the drainage branch pipe is communicated with the bottom of the transverse main pipe.

4. The device for quickly detecting material leakage in a V-type filter tank according to claim 3, characterized in that: The transverse main pipe is provided with a semicircular hole, the semicircular hole is located in the lower semicircle of the transverse main pipe, and the top of the drainage branch pipe is connected to the semicircular hole.

5. The device for quickly detecting material leakage in a V-type filter tank according to claim 1, characterized in that: The drainage branch pipe includes a first branch pipe and a second branch pipe, the top of the first branch pipe is connected to the transverse main pipe, the bottom of the first branch pipe is connected to the top of the gravity switch, the top of the second branch pipe is connected to the bottom of the gravity switch, and the bottom of the second straight pipe is arranged above the material running observation box.

6. The device for quickly detecting material leakage in a V-type filter tank according to claim 1, characterized in that: The gravity switch includes a shell, a movable valve core and a reset spring. The top of the shell is connected to and communicated with the bottom end of the first branch pipe, the bottom end of the shell is communicated with the top of the second straight pipe, the movable valve core is slidingly and sealingly connected in the shell, the top of the reset spring is fixedly connected to the bottom of the movable valve core, and the other end is fixedly connected to the shell. When the filter material deposition weight reaches the designed weight, the reset spring is compressed, and the movable valve core slides downward to make the shell connect the first branch pipe with the second branch pipe; when the filter material flows out, the restoring force of the reset spring resets the movable valve core to disconnect the first branch pipe and the second branch pipe.

7. The device for quickly detecting material leakage in a V-type filter tank according to claim 6, characterized in that: A rubber sealing member is arranged around the movable valve core.

8. A method for using the device for quickly detecting material leakage in a V-type filter tank as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: When the V-type filter tank is backwashed, the backwash water carries the filter media and flows into the water collection part along the drainage channel; The mixed water with filter material flows into the main drainage pipe through the water collecting part. Since the filter material in the mixed water with filter material has a higher specific gravity than water, when it passes over the top of the drainage branch pipe during the flow, the filter material is deposited into the drainage branch pipe and continuously deposited above the gravity switch. When the filter material is deposited above the gravity switch to the designed gravity, the gravity switch is opened, and the mixed water with filter material flows into the material running observation box through the drainage branch pipe. At this time, the staff can quickly determine whether material leakage occurs by observing whether sand-water mixture appears in the material leakage observation box; If material leakage is found, reduce the backwash intensity to reduce the impact on the filter media and avoid further loss of filter media.

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