Formaldehyde metering tank

Abstract

The utility model relates to the technical field of formaldehyde metering tanks, in particular to a formaldehyde metering tank which comprises a tank body, a feeding pipe fixedly penetrates through the top of the tank body, a screening bin is connected to the feeding pipe in a threaded mode, a pair of screening plates are arranged in the screening bin, inserting strips are horizontally connected to the screening plates in a sliding mode, and the inserting strips are horizontally connected with the vertical inner wall of the screening bin in an inserted mode. And the elastic assembly is arranged on the screen plate, and the insertion strips are stably connected with the screening bin in an inserted mode through the elastic assembly. The vertical inner wall of the screening bin is provided with inserting grooves facilitating horizontal inserting connection of the inserting strips. Compared with a metering tank in the prior art, the metering tank provided by the utility model has the advantages that through the arrangement of the elastic assembly, the sieve plate assembly can be quickly disassembled, the scrapping of the whole tank caused by local damage is avoided, and the maintenance cost is also reduced. Meanwhile, the sieve plate is independently cleaned or replaced, the maintainability and the use flexibility of the metering tank are improved, and the overall service life of the metering tank is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of formaldehyde metering tank technology, and in particular to a formaldehyde metering tank. Background Technology

[0002] A formaldehyde metering tank is a tank structure used for storing and measuring formaldehyde. The internal material of the tank is not prone to chemical reactions, thus ensuring that the formaldehyde remains stable after measurement and is less likely to cause safety accidents due to instability.

[0003] Existing technology, such as the formaldehyde metering tank disclosed in Publication No. CN220345365U, includes a tank body, a support frame, and a feeding system. The feed inlet is connected to a feed pipe through a filter cylinder, and a bracket inside the cylinder supports a mesh frame structure, forming a three-stage filtration system consisting of a bottom filter frame, a mesh frame, and a filter membrane. This design effectively intercepts impurities, ensures the purity of formaldehyde gas, improves metering accuracy, and facilitates maintenance.

[0004] However, this technical solution has the following problems in practical use:

[0005] The filter structure consists of a bracket, a mesh frame, a bottom filter screen frame, and a filter membrane. It employs a modular, layered design. The bracket is fixed to the inner wall of the filter media cylinder, the mesh frame is nested within it, and the bottom filter screen frame supports the filter membrane for fine filtration. Due to the corrosive nature of formaldehyde solution, the filter structure is easily corroded after prolonged use, and residue not removed by the scraper can easily cause blockage. The integrated structure prevents individual replacement of the filter structure, necessitating the disposal of the entire metering tank, resulting in high maintenance costs and insufficient flexibility. Utility Model Content

[0006] The purpose of this invention is to solve the problem that the integrated structure in the existing technology makes it impossible to replace the filter structure separately, which leads to the need to discard the entire metering tank, resulting in high maintenance costs and insufficient flexibility. Therefore, this invention proposes a formaldehyde metering tank.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A formaldehyde metering tank includes a tank body, a feed pipe fixedly extending through the top of the tank body, a screening chamber threadedly connected to the feed pipe, a pair of sieve plates disposed inside the screening chamber, inserts horizontally slidingly connected to the sieve plates, and the inserts horizontally inserted into the vertical inner wall of the screening chamber.

[0009] Also includes:

[0010] An elastic component is disposed on the sieve plate, the elastic component stabilizing the insertion bar and the screening chamber.

[0011] Preferably, the inserts are arranged in pairs, and the vertical inner wall of the screening chamber is provided with slots to facilitate the horizontal insertion of the inserts.

[0012] Preferably, the sieve plate has notches at all four corners and sliding openings to facilitate the horizontal sliding of the insert.

[0013] Preferably, the elastic component includes a telescopic rod fixedly connected in the recess, a spring sleeved on the telescopic rod, a connecting plate fixedly connected to the side wall of the insert near the recess, the connecting plate and the telescopic rod being fixedly connected, and the two ends of the spring being fixedly connected to the sieve plate and the connecting plate respectively.

[0014] Preferably, a handle is fixedly connected to the side wall of the insert away from the slot, and a threaded opening is provided at the bottom of the screening chamber to facilitate threaded connection between the screening chamber and the feed pipe.

[0015] Preferably, the top of the screening chamber is movably connected to a sealing cover via a hinge, and a discharge pipe is fixedly connected to the bottom of the tank, with a control valve installed on the discharge pipe.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] This invention, through the design of elastic components and a sieve plate, allows for quick disassembly of the sieve plate assembly when filtration efficiency is affected by clogging or corrosion. Operators simply apply force outwards with the handle to compress the spring, disengaging the insert from the slot. This not only prevents the entire tank from being scrapped due to partial damage but also reduces maintenance costs. Furthermore, it supports individual cleaning or replacement of the sieve plate, enhancing the maintainability and operational flexibility of the metering tank and extending its overall service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a formaldehyde metering tank proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of a formaldehyde metering tank after the screening chamber is separated from the feed pipe according to this utility model;

[0020] Figure 3 This is a schematic diagram of a sieve plate in a formaldehyde metering tank according to the present invention;

[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the sliding mouth in a formaldehyde metering tank proposed in this utility model.

[0023] In the picture:

[0024] 1. Tank body; 2. Feed pipe; 3. Screening bin; 31. Slot; 32. Threaded port; 4. Screen plate; 41. Insert bar; 42. Handle; 43. Notch; 44. Connecting plate; 45. Telescopic rod; 46. Spring; 47. Sliding port; 5. Sealing cover; 6. Discharge pipe; 7. Control valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-5 A formaldehyde metering tank includes a tank body 1. A feed pipe 2 is fixedly connected to the top of the tank body 1, and a screening chamber 3 is threaded onto the feed pipe 2. The feed pipe 2 adopts a threaded interface design, which facilitates the quick installation and disassembly of the screening chamber 3 and improves maintenance efficiency. A pair of sieve plates 4 are provided inside the screening chamber 3. Insert strips 41 are horizontally slidably connected to the sieve plates 4, and the insert strips 41 are horizontally inserted into the vertical inner wall of the screening chamber 3. The cooperation between the slots 31 and the insert strips 41 ensures that the sieve plates 4 are stable and do not loosen after installation, preventing displacement during filtration.

[0027] Also includes:

[0028] An elastic component is provided on the sieve plate 4, which makes the insert bar 41 stable and connected to the screening chamber 3.

[0029] The inserts 41 are arranged in pairs, and the vertical inner wall of the screening chamber 3 is provided with slots 31 to facilitate the horizontal insertion of the inserts 41.

[0030] The sieve plate 4 has notches 43 at each of its four corners, and the sieve plate 4 has sliding openings 47 to facilitate the horizontal sliding of the insert strip 41.

[0031] The elastic component includes a telescopic rod 45 fixedly connected within the recess 43, a spring 46 sleeved on the telescopic rod 45, a connecting plate 44 fixedly connected to the side wall of the insert 41 near the recess 43, the connecting plate 44 and the telescopic rod 45 being fixedly connected, and the two ends of the spring 46 being fixedly connected to the sieve plate 4 and the connecting plate 44 respectively. The spring 46 and the telescopic rod 45 provide stable elastic force, ensuring that the insert 41 always fits tightly against the slot 31, preventing the sieve plate 4 from loosening.

[0032] A handle 42 is fixedly connected to the side wall of the insert 41 away from the slot 31. The handle 42 is designed to facilitate the operator to apply force to insert or remove the insert 41. The bottom of the screening chamber 3 has a threaded port 32 for easy threaded connection between the screening chamber 3 and the feed pipe 2.

[0033] The top of the screening chamber 3 is hinged to a sealing cover 5 to prevent formaldehyde gas from escaping. A discharge pipe 6 is fixedly connected to the bottom of the tank body 1, and a control valve 7 is installed on the discharge pipe 6. The control valve 7 can adjust the discharge speed, suitable for different application scenarios.

[0034] The functional principle of this utility model can be explained through the following operation methods:

[0035] Feeding preparation: Open the sealing cover 5 at the top of the screening chamber 3, and pour the formaldehyde solution or formaldehyde-containing material to be treated into the screening chamber 3 through the feed pipe 2.

[0036] Screening and filtration: The material passes through two layers of screen plates 4. The inserts 41 on the screen plates 4 are stably inserted into the slots 31 on the inner wall of the screening chamber 3 by elastic components (telescopic rods 45 and springs 46), ensuring that the screen plates 4 are fixed. Large particles of impurities are intercepted by the screen plates 4, and the filtered liquid flows into the tank 1.

[0037] Screen plate 4 maintenance: If screen plate 4 needs to be cleaned or replaced, use a tool to clamp the handle 42 on the insert 41 and pull it outward. The spring 46 will compress the insert 41 and disengage it from the slot 31, allowing the screen plate 4 to be pulled out vertically. During installation, the operation is reversed, and the insert 41 will automatically reset and be fixed under the action of the spring 46.

[0038] Sealed storage: Close the sealing cap 5 to prevent evaporation. The filtered formaldehyde is temporarily stored in tank 1 and can be discharged through the bottom discharge pipe 6. The flow rate is adjusted by the control valve 7.

[0039] Disassembly and cleaning: Unscrew the threaded connection between the screening chamber 3 and the feed pipe 2 to thoroughly clean the internal components.

[0040] This device achieves efficient filtration and convenient maintenance through its detachable screen plate structure and flexible plug-in design.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A formaldehyde metering tank comprising a tank body (1), characterized in that, The tank body (1) top fixed through the feed pipe (2), the feed pipe (2) is screwed with screening bin (3), the screening bin (3) is provided with a pair of sieve plate (4), the sieve plate (4) on the horizontal sliding connection has inserted strip (41), and the inserted strip (41) and the screening bin (3) vertical inner wall horizontal insertion; Also includes: Elastic component, the elastic component is arranged on the sieve plate (4), the elastic component makes the inserted strip (41) stable and the screening bin (3) insertion.

2. A formaldehyde metering tank according to claim 1, characterized in that The inserted strip (41) is arranged in pairs, and the vertical inner wall of the screening bin (3) is provided with a slot (31) for facilitating the horizontal insertion of the inserted strip (41).

3. A formaldehyde metering tank according to claim 1, characterized in that The sieve plate (4) is provided with a notch (43) at four corners, and the sieve plate (4) is provided with a sliding port (47) for facilitating the horizontal sliding of the inserted strip (41).

4. A formaldehyde metering tank according to claim 3, characterized in that The elastic component includes a telescopic rod (45) fixedly connected in the notch (43), a spring (46) sleeved on the telescopic rod (45), a connecting plate (44) fixedly connected on the side wall of the inserted strip (41) close to the notch (43), the connecting plate (44) and the telescopic rod (45) are fixedly connected, and the spring (46) is fixedly connected with the sieve plate (4) and the connecting plate (44) at both ends.

5. A formaldehyde metering tank according to claim 2, characterized in that The side wall of the inserted strip (41) away from the slot (31) is fixedly connected with a handle (42), and the bottom of the screening bin (3) is provided with a threaded port (32) for facilitating the threaded connection of the screening bin (3) and the feed pipe (2).

6. A formaldehyde metering tank according to claim 1, characterized in that The top of the screening bin (3) is hingedly connected with a sealing cover (5), the bottom of the tank body (1) is fixedly penetrated with a discharge pipe (6), and the discharge pipe (6) is provided with a control valve (7).

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