Filtering device for water replenishing of white water tank and water replenishing system of white water tank

Abstract

The utility model relates to a filtering device for water replenishing of a white water tank and a water replenishing system of the white water tank. The filtering device comprises a tank body, a top cover arranged at the top of the tank body and a gland assembly for fixing the top cover on the tank body; a first annular structure is arranged at the top of the tank body, and a second annular structure which can be in sealing contact with the first annular structure is arranged at the bottom of the top cover; and the gland assembly comprises a fixed base arranged on the tank body and a screw vertically arranged on the fixed base, the screw is provided with a gland matched with the screw in a threaded mode, and the gland is provided with a limiting protruding block capable of being matched with the second annular structure in a limiting mode. The white water tank water supplementing system comprises a water source supply pool, a white water tank and at least two filtering devices. Compared with the prior art, the filtering device for supplementing water for the white water tank can effectively prevent the top cover from being opened due to air pressure change in the tank body, so that the filtering device is promoted to stably and quickly filter clear water for supplementing water for the subsequent white water tank.

Description

Technical Field

[0001] This utility model relates to the field of papermaking production technology, and in particular to a filtration device and a white water tank replenishment system for replenishing water in a white water tank. Background Technology

[0002] Over time, fine fibers in the white water of a paper machine will gradually accumulate at the bottom of the white water tank. The white water tank is also cleaned during machine shutdown cleaning, requiring the water to be drained before cleaning can begin. The paper machine shutdown cleaning process requires a large amount of clean water, for example, to rinse equipment, felt, and wire mesh, and to replenish the white water tank after cleaning.

[0003] After the paper machine is shut down for cleaning and the white water tank is emptied and cleaned, a large amount of clean water is needed to replenish the white water tank. The clean water is drawn from the river, filtered, and then sent to the clear water pool. The existing filter uses a capping device consisting of a locking ring and a screw. When the white water tank water replenishment valve is opened, the pressure in the pipeline decreases. After the water replenishment ends and the valve is closed, the water pressure in the pipeline rises rapidly, causing a static pressure impact. The filter cap cannot withstand the impact and is prone to being forced open, affecting the water filtration speed.

[0004] Therefore, there is an urgent need to develop a new type of filtration device for replenishing water in white water tanks, as well as a corresponding white water tank replenishment system. Utility Model Content

[0005] The purpose of this invention is to overcome the defect of existing filter devices where the top cover is easily pushed open during the white water tank replenishment process, and to provide a filter device and white water tank replenishment system for white water tank replenishment.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A filtration device for replenishing water in a white water tank includes a tank, a top cover disposed on the top of the tank, and at least two cap assemblies for fixing the top cover to the tank.

[0008] The top of the tank is provided with a first annular structure, and the bottom of the top cover is provided with a second annular structure that can seal and contact the first annular structure.

[0009] The capping assembly includes a fixed base on the tank and a screw rod vertically mounted on the fixed base. The screw rod is provided with a cap that is threadedly engaged with the screw rod, and the cap is provided with a limiting protrusion that can engage with the second annular structure for limiting.

[0010] Furthermore, the tank body is provided with an inlet and an outlet.

[0011] Furthermore, a drain outlet is provided at the bottom of the tank.

[0012] Furthermore, the top cover is equipped with a pressure gauge for monitoring the air pressure inside the tank and an exhaust valve for venting air.

[0013] Furthermore, the number of the capping assemblies is four, and the four capping assemblies are evenly arranged around the top cover.

[0014] Furthermore, the fixed base is fixedly connected to the side wall of the tank.

[0015] Furthermore, the bottom of the screw is connected to the fixed base via a fixing rod.

[0016] Furthermore, the vertical arrangement of the screw enables the entire gland assembly to achieve a better fixing and sealing effect in the vertical direction.

[0017] Furthermore, the pressure cap is fixedly connected with a nut that is coaxially arranged with the pressure cap, and the nut is also threadedly engaged with the screw.

[0018] Furthermore, the nut is provided with a tightening wristband.

[0019] This utility model also provides a white water tank replenishment system including the above-mentioned filtration devices, which includes a water supply pool, a white water tank and at least two filtration devices.

[0020] The water supply pools are connected to the inlets of the corresponding filtration devices via pipes, and the outlets of the filtration devices are connected to the white water tank via pipes.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) This utility model can stably seal and fix the top cover of the filter device to the tank by cleverly setting multiple pressure cap components. By applying pressure vertically and limiting, it can effectively prevent the top cover from being pushed open due to changes in air pressure inside the tank.

[0023] (2) The filter device of this utility model can ensure the sealing and fixing of the top cover to the greatest extent by the all-round sealing and fixing of multiple evenly distributed pressure cap components, and greatly reduce the safety hazards caused by the top cover being pushed open.

[0024] (3) By installing a pressure gauge and an exhaust valve on the top cover, this utility model can effectively monitor the air pressure inside the tank and perform exhaust operations in a targeted manner according to the air pressure inside the tank to prevent the air pressure inside the tank from being too high and thus opening the top cover, which greatly reduces safety hazards.

[0025] (4) The filtration device of this utility model can achieve stable and rapid filtration of clean water. Combined with the water supply pool and white water tank, it can realize the whole process from water source filtration to large-scale water replenishment to the white water tank. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the filtration device of this utility model.

[0027] Figure 2 This is a schematic diagram of the capping assembly of Embodiment 2 of this utility model.

[0028] Figure 3 This is a schematic diagram of the internal structure of the fixed base in Embodiment 2 of this utility model.

[0029] Figure 4 This is a schematic diagram of the white water tank replenishment system of Embodiment 3 of this utility model.

[0030] Explanation of markings in the diagram:

[0031] 1-Tank body, 11-First annular structure, 12-Water inlet, 13-Water outlet, 14-Sewage outlet;

[0032] 2-Top cover, 21-Second ring structure, 22-Pressure gauge, 23-Exhaust valve;

[0033] 3-Cap assembly, 31-Fixing base, 32-Screw, 33-Cap, 331-Limiting protrusion, 34-Fixing rod, 35-Tightening wristband, 36-Nut;

[0034] 4-Water supply pool;

[0035] 5-White water tank. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0037] In this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] Example 1:

[0040] A filtration device for replenishing water in a white water tank, such as Figure 1 As shown, it includes a tank body 1 and a top cover 2 disposed on the top of the tank body 1. The top of the tank body 1 is provided with a first annular structure 11, and the bottom of the top cover 2 is provided with a second annular structure 21 that can be in sealing contact with the first annular structure 11.

[0041] The filtration device also includes at least two capping assemblies 3 for fixing the top cover 2 to the tank body 1. Each capping assembly 3 includes a fixed base 31 on the tank body 1 and a screw 32 vertically mounted on the fixed base 31. The screw 32 is provided with a cap 33 that is threadedly engaged with the screw 32. The cap 33 is provided with a limiting protrusion 331 that can be limited and engaged with the second annular structure 21.

[0042] When it is necessary to reseal and fix the opened top cover 2 to the tank body 1, first align the contact surfaces of the second annular structure 21 of the top cover 2 with the first annular structure 11 of the tank body 1. Then, place the pressure cap 33 at the top of the screw 32. Through the cooperation between the pressure cap 33 and the screw 32, the pressure cap 33 moves downward until the limiting protrusion 331 on the pressure cap 33 is limited and engaged with the top surface of the second annular structure 21. At this time, the pressure cap 33 cannot continue to move downward, so as to achieve the sealing and fixation of the top cover 2 and the tank body 1. Finally, by applying vertical pressure and limiting, the situation where the top cover 2 is pushed open due to changes in air pressure inside the tank body 1 is effectively avoided.

[0043] Example 2:

[0044] A filtration device for replenishing water in a white water tank includes a tank body 1 and a top cover 2 located on top of the tank body 1. The top of the tank body 1 has a first annular structure 11, and the bottom of the top cover 2 has a second annular structure 21 that can seal against the first annular structure 11. The tank body 1 has an inlet 12 and an outlet 13, and the bottom of the tank body 1 has a drain outlet 14. The top cover 2 has a pressure gauge 22 and an exhaust valve 23 for venting air.

[0045] The filtration device in this embodiment also includes four capping assemblies 3 for fixing the top cover 2 to the tank body 1. The four capping assemblies 3 are evenly arranged around the top cover 2 to ensure a tight seal. Figure 2-3 As shown, each cap assembly 3 includes a fixed base 31 mounted on the tank body 1 and a screw 32 vertically mounted on the fixed base 31. The fixed base 31 is fixedly connected to the side wall of the tank body 1. The screw 32 is vertically positioned, and its bottom is connected to the fixed base 31 via a fixing rod 34, enabling the cap assembly 3 to achieve a good fixing and sealing effect in the vertical direction. A cap 33 is slidably mounted on the screw 32 and threadedly engaged with it. The cap 33 has a limiting protrusion 331 that can engage with the second annular structure 21. A nut 36 coaxially mounted on the top surface of the cap 33 is fixedly connected to the cap 33, and a tightening handle 35 is fixedly mounted on the nut 36.

[0046] When it is necessary to replenish the white water tank of the paper machine, water taken from the river is fed into tank 1 through inlet 12 for filtration. Under the action of the filter medium inside tank 1, solid particles are trapped in the liquid to be filtered, and the clean liquid flows out through outlet 13. Pressure gauge 22 is used to monitor the pressure inside tank 1 to ensure that the filtration process is carried out within a safe range. Vent valve 23 opens to release gas when venting is needed, maintaining system balance and preventing sudden pressure release from lifting the top cover 2. Drain outlet 14 is opened periodically to remove deposited contaminants.

[0047] When it is necessary to reseal and fix the opened top cover 2 to the tank body 1, first align the contact surfaces of the second annular structure 21 of the top cover 2 with the first annular structure 11 of the tank body 1. Then, place the pressure cap 33 at the top of the screw 32 and continuously tighten the pressure cap 33 by tightening the hand ring 35 until the limiting protrusion 331 on the pressure cap 33 engages with the top surface of the second annular structure 21. At this point, the pressure cap 33 cannot continue to move downward, thus achieving a sealed fixation between the top cover 2 and the tank body 1. Other pressure cap components 3 are operated in the same way. Through the all-round fixation of multiple pressure cap components, the sealing and fixation of the top cover 2 can be guaranteed to the greatest extent, thereby reducing the safety hazards caused by the top cover 2 being pushed open. This allows the filtration device of this embodiment to stably and quickly filter clean water for subsequent white water tank replenishment.

[0048] Example 3:

[0049] This embodiment provides a white water tank water replenishment system, such as Figure 4 As shown, it includes a water supply tank 4, a white water tank 5, and at least two filtration devices. The water supply tank 4 is connected to the inlet 12 of the corresponding filtration device through a pipe, and the outlet 13 of the filtration device is connected to the white water tank 5 through a pipe.

[0050] In this embodiment, when replenishing clean water to the white water tank 5, in order to filter the clean water in a timely and rapid manner, the white water tank replenishment system of this embodiment adds three filtration devices to the original one filtration device, and replaces the original manual valve outside the white water tank 5 with a DCS control switch, sets the liquid level height, and automatically opens / closes the valve according to the liquid level, so as to reduce the risk of equipment damage and safety hazards.

[0051] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A filtration device for replenishing water in a white water tank, characterized in that, It includes a tank body (1), a top cover (2) disposed on the top of the tank body (1), and at least two capping assemblies (3) for fixing the top cover (2) to the tank body (1); The top of the tank (1) is provided with a first annular structure (11), and the bottom of the top cover (2) is provided with a second annular structure (21) that can seal and contact with the first annular structure (11). The cap assembly (3) includes a fixed base (31) on the tank body (1) and a screw (32) vertically mounted on the fixed base (31). The screw (32) is provided with a cap (33) that is threadedly engaged with the screw (32). The cap (33) is provided with a limiting protrusion (331) that can be limited and engaged with the second annular structure (21).

2. The filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The tank (1) is provided with an inlet (12) and an outlet (13).

3. The filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The tank (1) is provided with a drain outlet (14) at the bottom.

4. The filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The top cover (2) is equipped with a pressure gauge (22) for monitoring the air pressure inside the tank (1) and an exhaust valve (23) for venting.

5. A filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The number of the capping components (3) is four, and the four capping components (3) are evenly arranged around the top cover (2).

6. The filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The fixed base (31) is fixedly connected to the side wall of the tank (1).

7. A filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The bottom of the screw (32) is connected to the fixed base (31) via a fixing rod (34).

8. A filtration device for replenishing water in a white water tank according to claim 1, characterized in that, The pressure cap (33) is fixedly connected to a nut (36) that is coaxially arranged with the pressure cap (33).

9. A filtration device for replenishing water in a white water tank according to claim 8, characterized in that, The nut (36) is provided with a tightening handle (35).

10. A white water tank replenishment system comprising the filtration device according to any one of claims 1-9, characterized in that, It includes a water supply tank (4), a white water tank (5), and at least two filtration devices; The water supply pool (4) is connected to the inlet (12) of the corresponding filter device through pipes, and the outlet (13) of the filter device is connected to the white water tank (5) through pipes.

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