Reverse osmosis precision filter equipment

Abstract

The utility model aims to provide reverse osmosis precision filter equipment, which reduces the labor intensity of replacing a filter element, reduces the field operation risk of personnel, saves the replacement cost, can achieve the purposes of shortening the replacement time and improving the field treatment, and comprises a support frame, two groups of single-core filter groups which are symmetrically distributed left and right are arranged on the supporting frame, and each group of single-core filter group comprises a plurality of single-core filters which are transversely distributed up and down; a water inlet main pipe is arranged between the inlet ends of the two single-core filter groups; the left side wall and the right side wall of the water inlet main pipe are correspondingly communicated with the inlet ends of the single-core filters through water inlet branch pipes respectively; a water outlet main pipe is arranged between the inlet ends of the two single-core filter groups, and the left side wall and the right side wall of the water outlet main pipe are correspondingly communicated with the inlet ends of the single-core filters through water outlet branch pipes respectively.

Description

Technical Field

[0001] The utility model relates to the field of water treatment, in particular to a reverse osmosis precision filter device. Background Art

[0002] The chemical water treatment process uses surface water (Yellow River water) to pass through a multi-media filter for pretreatment to remove suspended matter, iron ions and solid particles in the water. The treated water enters the ultrafiltration system to remove proteins, colloids, microorganisms and large molecular organic matter. The filtered water enters the reverse osmosis system for further desalination treatment. The principle is to apply a pressure greater than the osmotic pressure (difference) of the solution on one side of the saline solution, allowing only water to pass through the reverse osmosis membrane, while the ions and organic matter in the solution are concentrated on the raw water side, thereby achieving the purpose of desalination of the solution to obtain fresh water. The fresh water enters the ion exchanger for ion exchange to obtain desalted water for production and use by downstream companies.

[0003] At present, the filter installed in front of the reverse osmosis system is a vertical stainless steel filter. After using the Yellow River water, the filter element is frequently replaced. The vertical filter contains 114 small-flux filter elements. When replacing, the upper head of the filter needs to be disassembled and reinstalled. The working space is small, the procedures are cumbersome, the labor intensity of personnel is high and the risk factor is high; the vertical filter cannot be isolated and replaced separately, and the cost of replacing a single set is high at 1,140 yuan; each replacement of a set of filter elements requires starting and stopping the reverse osmosis once. Because the reverse osmosis design has many dynamic and static sealing points, frequent starting and stopping of equipment causes an increase in leakage points on site, which directly causes unnecessary waste of water resources and an increase in the workload of personnel. The replaced filter elements are difficult to store and pile up, and need to be crushed and incinerated. The workload is large and is not conducive to the improvement of environmental protection management and on-site governance. In order to change the various existing disadvantages, the filter is modified in combination with the actual situation on site. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a reverse osmosis precision filter equipment, which reduces the labor intensity of filter element replacement, reduces the risk of on-site operations for personnel, saves replacement costs, and can both reduce replacement time and improve on-site management.

[0005] The utility model is realized by the following technical solutions:

[0006] A reverse osmosis precision filter device comprises a support frame, on which two groups of single-core filter groups are symmetrically distributed left and right, and each group of single-core filter groups comprises a plurality of single-core filters distributed horizontally up and down;

[0007] A water inlet main pipe is arranged between the inlet ends of the two groups of single-core filter groups, and the left and right side walls of the water inlet main pipe are connected to the inlet ends of the single-core filters through the water inlet branch pipes;

[0008] A water outlet main pipe is arranged between the inlet ends of the two groups of single-core filter groups, and the left and right side walls of the water outlet main pipe are respectively connected to the inlet ends of the single-core filters through water outlet branches.

[0009] Furthermore, the upper end of the water inlet main pipe is a water inlet and the lower end is a plug, and the upper end of the water outlet main pipe is a plug and the lower end is a water outlet.

[0010] Furthermore, the single-core filter comprises a glass fiber reinforced plastic shell and a reverse osmosis filter element arranged in the glass fiber reinforced plastic shell.

[0011] Furthermore, the fiberglass shell of the single-core filter is detachably mounted on the support frame.

[0012] Furthermore, the inlet end and the outlet end of the single-core filter are respectively provided with an inlet valve and an outlet valve.

[0013] Furthermore, each single-core filter group includes three single-core filters with a water filtration capacity of 30m³ / h.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0015] 1. Two groups of single-core filter groups are symmetrically distributed on the left and right. Each group of single-core filter groups contains multiple single-core filters distributed horizontally up and down to replace the previous vertical filter elements, and the original vertical stainless steel filters are eliminated. When replacing the filter element, personnel no longer need to go through cumbersome procedures such as climbing, removing the sealing head, removing the end plate, and moving the large cover. When replacing the filter element of the modified skid-mounted precision filter, it is only necessary to isolate the single filter and remove the end plate for replacement. The procedure is simple, the replacement is quick and convenient, and the working hours are greatly reduced;

[0016] 2. Each single-core filter is equipped with an inlet valve and an outlet valve at its inlet and outlet ends. When a single-core filter is being repaired, it can be effectively isolated through the inlet valve and the outlet valve. With the help of a remote differential pressure transmitter, when the filter element pressure difference reaches the index and needs to be replaced, the reverse osmosis filter element of a single-core filter can be isolated and replaced online.

[0017] 3. The skid-mounted precision filter has six large-flow single-core filters inside, which replace more than 100 small-flow filter elements of the original vertical stainless steel filter, greatly reducing the replacement cost under the same operating cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the reverse osmosis precision filter device of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the middle AA direction;

[0020] Figure 3 for Figure 1 Schematic diagram of the BB direction;

[0021] In the figure: 1. Support frame, 2. Single-core filter, 3. Water inlet main pipe, 4. Water inlet branch pipe, 5. Inlet valve, 6. Water outlet main pipe, 7. Water outlet branch pipe, 8. Outlet valve. DETAILED DESCRIPTION

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

[0023] In the description of the utility model, it is necessary to understand that the directions or positional relationships indicated by the terms "front", "rear", "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0024] In order to solve the problems in the background technology, such as Figure 1-3 As shown, the present embodiment discloses a reverse osmosis precision filter device, including a support frame 1, on which are mounted two groups of single-core filter groups symmetrically distributed left and right, and each group of single-core filter groups includes three single-core filters 2 distributed laterally up and down. Each single-core filter 2 includes a fiberglass shell and a reverse osmosis filter element disposed in the fiberglass shell, and the filtered water volume of the reverse osmosis filter element is increased from the original 1.5m³ / h to 30m³ / h. The fiberglass shell of the single-core filter 2 is detachably mounted on the support frame 1 by a bolt assembly, and the single-core filter 2 is a skid-mounted filter, which can easily and quickly replace the reverse osmosis filter element.

[0025] A water inlet main pipe 3 is arranged between the inlet ends of the two groups of single-core filter groups. The left and right side walls of the water inlet main pipe 3 are connected to the inlet ends of each single-core filter through three water inlet branches 4, and an inlet valve 5 is installed on the water inlet branch 4. A water outlet main pipe 6 is arranged between the inlet ends of the two groups of single-core filter groups. The left and right side walls of the water outlet main pipe 6 are connected to the inlet ends of each single-core filter through three water outlet branches 7, and an outlet valve 8 is arranged on the water outlet main pipe 6. The upper end of the water inlet main pipe 3 is the water inlet and the lower end is the plugging. The upper end of the water outlet main pipe 6 is the plugging and the lower end is the water outlet. Each single-core filter is equipped with a remote differential pressure transmitter to detect the pressure difference between the inlet and outlet ends.

[0026] The reverse osmosis precision filter equipment described in the utility model is composed of 6 single-core filters connected in parallel, each set has an inlet valve 5 and an outlet valve and a remote differential pressure transmitter. When the pressure difference of one set rises and the reverse osmosis filter element needs to be replaced, it can be isolated and withdrawn separately, and the reverse osmosis system does not need to be shut down, which reduces the leakage points caused by frequent start and stop of the equipment. When replacing the reverse osmosis filter element, the utility model only needs to close the single inlet and outlet valves, release the pressure, and then open the end cover to replace it. The cumbersome steps of the original vertical filter are no longer required, which saves the replacement time and ensures the safety of the operation. After the implementation of the utility model, the replacement procedure of the reverse osmosis filter element is simplified, and the replacement time is shortened from the original 2 people 2 hours / set to 1 person 30 minutes / set, and the replacement cost is reduced from the original 1140 yuan / set to 600 yuan / set.

Claims

1. A reverse osmosis precision filter device, characterized in that: It comprises a supporting frame, on which two groups of single-core filter groups are symmetrically distributed left and right, and each group of single-core filter groups comprises a plurality of single-core filters distributed laterally up and down; A water inlet main pipe is arranged between the inlet ends of the two groups of single-core filter groups, and the left and right side walls of the water inlet main pipe are connected to the inlet ends of the single-core filters through the water inlet branch pipes; A water outlet main pipe is arranged between the inlet ends of the two groups of single-core filter groups, and the left and right side walls of the water outlet main pipe are respectively connected to the inlet ends of the single-core filters through water outlet branches.

2. The reverse osmosis precision filter device according to claim 1, characterized in that: The upper end of the water inlet main pipe is a water inlet and the lower end is a plug; the upper end of the water outlet main pipe is a plug and the lower end is a water outlet.

3. The reverse osmosis precision filter device according to claim 2, characterized in that: The single-core filter comprises a glass fiber reinforced plastic shell and a reverse osmosis filter element arranged in the glass fiber reinforced plastic shell.

4. The reverse osmosis precision filter device according to claim 3, characterized in that: The glass fiber reinforced plastic shell of the single-core filter is detachably mounted on the supporting frame.

5. The reverse osmosis precision filter device according to any one of claims 1 to 4, characterized in that: The inlet end and the outlet end of the single-core filter are respectively provided with an inlet valve and an outlet valve.

6. The reverse osmosis precision filter device according to any one of claims 1 to 4, characterized in that: Each single-core filter group includes three single-core filters with a water filtration capacity of 30m³ / h.

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