A horizontal spiral wing type detachable water meter impeller protection device

Abstract

The utility model discloses a horizontal screw wing formula detachable water meter impeller protection device, belong to horizontal screw wing formula water gauge technical field, include: the transition pipe is the circular tube and is located the inside of water meter pipeline, just the transition pipe is against the inner wall of water meter pipeline, the transition pipe is the circular tube and is located the transition pipe, just the transition pipe is against the inner wall of transition pipe, two flow guide components, it is symmetrical arrangement and is fixedly connected respectively in both ends of transition pipe, the utility model discloses a group of flow guide components to the fluid that enters the transition pipe carries out the preliminary rectification, and the fluid is filtered into the buffer chamber of transition pipe after being filtered by filter screen component and enters the transition pipe, even if the partiality of filter screen component has the blockage and leads to the fluid flow rate uneven, and the liquid that flows out from the buffer chamber also will be rectified again by another group of flow guide components, and then guarantee the fluid flow rate even that enters the impeller place, make the measurement accurate of water meter, modular structure design, be convenient for the subsequent overhaul and maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of horizontal spiral vane water meters, and particularly relates to a protective device for a horizontal spiral vane detachable water meter impeller. Background Technology

[0002] A horizontal rotor water meter, also known as a turbine water meter, refers to a water meter in which the rotor axis is parallel (or coincides) with the axis of the tap water pipe, and its impeller adopts a rotor shape.

[0003] To protect the impeller, a filter screen (such as a stainless steel filter screen with a pore size of 1-2mm) is usually installed before the water meter inlet to intercept impurities such as mud, rust, and fibers in the water, reducing the impact of impurities on the impeller from the source.

[0004] Currently, when fluid first enters the water meter, it needs to be rectified by a guide plate. Then, the fluid is filtered by a filter screen and impacts the impeller. As the filter screen is partially blocked by impurities, the fluid entering the impeller is disturbed again, causing uneven flow velocity distribution in the impeller and abnormal rotation speed, which leads to measurement deviations in the water meter. Utility Model Content

[0005] The purpose of this utility model is to provide a protective device for a detachable water meter impeller with a horizontal screw wing in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a protective device for a detachable water meter impeller with a horizontal spiral blade, comprising:

[0007] A transition pipe, which is a round pipe, is located inside the water meter pipe and abuts against the inner wall of the water meter pipe;

[0008] A transposition tube, which is a circular tube, is disposed inside the transition tube, and the transposition tube abuts against the inner wall of the transition tube;

[0009] Two flow guiding components are symmetrically arranged and fixedly connected to both ends of the transition tube, and the two flow guiding components abut against the opposite ends of the transposed tube, so that a buffer cavity is formed inside the transposed tube;

[0010] A filter assembly is fixedly connected inside the transposed tube.

[0011] As a further description of the above technical solution:

[0012] The flow guiding assembly includes a flange and multiple flow guiding vanes. The flange is fixedly connected to the end of the transition pipe by bolts. The multiple flow guiding vanes are arranged in a ring array and fixedly connected to the flange. The multiple flow guiding vanes extend into the interior of the transition pipe and abut against the end of the transposed pipe.

[0013] As a further description of the above technical solution:

[0014] The flange is bolted to the end of the water meter pipe.

[0015] As a further description of the above technical solution:

[0016] The transposed tube has a stepped surface, and the filter assembly is connected to the stepped surface by bolts.

[0017] As a further description of the above technical solution:

[0018] The filter assembly includes a filter body and two pressure rings. The two pressure rings clamp the filter body, and one pressure ring abuts against the stepped surface. Bolts pass through the two pressure rings and the filter body and are screwed onto the stepped surface.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this utility model, a set of flow guiding components performs preliminary rectification of the fluid entering the transition pipe. After the fluid enters the transposition pipe and is filtered by the filter screen assembly, it enters the buffer chamber of the transposition pipe. Even if there is local blockage on the filter screen assembly, resulting in uneven fluid flow rate, the liquid flowing out of the buffer chamber will be rectified again by another set of flow guiding components, thereby ensuring that the fluid flow rate entering the impeller is uniform, making the water meter accurate. The modular structure design facilitates subsequent inspection and maintenance.

[0021] 2. In this utility model, the flange facilitates bolt connection with the end of the transition pipe, and the evenly distributed guide vanes have a good guiding effect on the fluid, making it easy to establish a connection between the entire protective device and the water meter, so that the protective device can be quickly and conveniently extended and installed on the water meter.

[0022] 3. In this utility model, the filter assembly can be disassembled and installed from the transposed tube by bolts passing through the two pressure rings and the filter body and screwing them onto the stepped surface. This makes it easy to replace and clean the filter body regularly. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a protective device for a detachable water meter impeller with a horizontal screw fin. Figure 1 .

[0024] Figure 2 A schematic diagram of the overall structure of a protective device for a detachable water meter impeller with a horizontal screw fin. Figure 2 .

[0025] Figure 3An explosion protection device for a detachable water meter impeller with a horizontal rotor. Figure 1 .

[0026] Figure 4 An explosion protection device for a detachable water meter impeller with a horizontal rotor. Figure 2 .

[0027] Figure 5 This is a cross-sectional view of a protective device for a detachable water meter impeller with a horizontal screw fin.

[0028] Legend:

[0029] 1. Transition pipe; 2. Transfer pipe; 3. Flow guide assembly; 31. Flange; 32. Flow guide plate; 4. Buffer chamber; 5. Filter screen assembly; 51. Filter screen body; 52. Pressure ring; 6. Stepped surface. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 This utility model provides a technical solution: a protective device for a detachable water meter impeller with a horizontal screw wing, comprising:

[0032] Transition pipe 1 is a circular pipe located inside the water meter pipe, and the transition pipe 1 abuts against the inner wall of the water meter pipe;

[0033] The transposition tube 2 is a circular tube and is disposed inside the transition tube 1, and the transposition tube 2 abuts against the inner wall of the transition tube 1;

[0034] Two flow guiding components 3 are arranged symmetrically and fixedly connected to both ends of the transition tube 1, and the two flow guiding components 3 respectively abut against the opposite ends of the transposition tube 2, so that a buffer cavity 4 is formed inside the transposition tube 2.

[0035] The filter assembly 5 is fixedly connected inside the transducer 2;

[0036] The flow guiding assembly 3 includes a flange 31 and multiple flow guiding vanes 32. The flange 31 is fixedly connected to the end of the transition pipe 1 by bolts. The multiple flow guiding vanes 32 are arranged in a ring array and fixedly connected to the flange 31. The multiple flow guiding vanes 32 extend into the interior of the transition pipe 1 and abut against the end of the transposed pipe 2. The flange 31 is convenient to be connected to the end of the transition pipe 1 by bolts. The uniformly distributed flow guiding vanes 32 have a good flow guiding effect on the fluid.

[0037] The flange 31 is bolted to the end of the water meter pipe, which facilitates the connection between the entire protective device and the water meter, allowing the protective device to be quickly and easily extended and installed on the water meter.

[0038] The transposition tube 2 is provided with a stepped surface 6, and the filter assembly 5 is connected to the stepped surface 6 by bolts, which facilitates the rapid expansion and installation of the filter assembly 5 inside the transposition tube 2.

[0039] The filter assembly 5 includes a filter body 51 and two pressure rings 52. The two pressure rings 52 clamp the filter body 51, and one pressure ring 52 abuts against the stepped surface 6. Bolts pass through the two pressure rings 52 and the filter body 51 and are screwed onto the stepped surface 6. The filter assembly can be disassembled and reassembled from the transducer tube 2 simply by removing and installing the bolts, which facilitates the regular replacement and cleaning of the filter body 51.

[0040] Working principle: First, a set of flow guiding components 3 serves as a fixed reference. The flange 31 of this flow guiding component 3 is set to be larger than the flange 31 of another set of flow guiding components 3. The end of the transition pipe 1 is aligned with the flange 31. Multiple flow guiding plates 32 are inserted into the interior of the transition pipe 1. The flange 31 and the end of the transition pipe 1 are fixedly connected with bolts, completing the installation of a set of flow guiding components 3 on the transition pipe 1. Two pressure rings 52 are clamped around the edge of the filter body 51 to form the filter assembly 5. The filter assembly 5 is then snapped into the transducer. Inside pipe 2, one of the pressure rings 52 abuts against the stepped surface 6. Bolts pass through the two pressure rings 52 and the filter screen body 51 and are screwed onto the stepped surface 6. Then, the transposed pipe 2 is inserted into the transition pipe 1. The end of the transposed pipe 2 abuts against the multiple guide plates 32 of the pre-installed filter screen assembly 5. The installation method of the guide assembly 3 is repeated to install another set of guide assemblies 3, so that the transposed pipe 2 is clamped inside the transition pipe 1. Next, this assembled transition pipe 1 is inserted into the water meter pipe. The larger flange 31 is fixed to the water meter pipe with bolts. At the end of the meter pipe, a set of flow guiding components 3 then performs preliminary rectification of the fluid entering the transition pipe 1. The fluid enters the transducer pipe 2, is filtered by the filter screen assembly 5, and then enters the buffer chamber 4 of the transducer pipe 2. Even if there is localized blockage on the filter screen body 51 of the filter screen assembly 5, causing uneven fluid flow, the liquid flowing out of the buffer chamber 4 will be rectified again by another set of flow guiding components 3, thus ensuring a uniform fluid flow rate at the impeller and making the water meter accurate. The specific rectification is achieved by multiple flow guiding components arranged in a ring array. Finally, if the filter body 51 needs to be cleaned or replaced, simply unscrew the bolts on the smaller flange 31 to remove the flow guide assembly 3, thereby releasing the restriction on the transposition tube 2. After removing the transposition tube 2, the filter body 5 can be taken out and the filter body 51 can be directly brushed. Alternatively, unscrew the bolts fixing the pressure ring 52 to remove the two pressure rings 52 and the filter body 51 from the stepped surface 6 and replace the filter body 51. The reverse operation is then performed to reinstall the filter body 5.

[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 protective device for a detachable water meter impeller with a horizontal screw fin, characterized in that: include: Transition pipe (1), which is a round pipe and is located inside the water meter pipe, and the transition pipe (1) abuts against the inner wall of the water meter pipe; A transposition tube (2) is a circular tube and is disposed inside the transition tube (1), and the transposition tube (2) abuts against the inner wall of the transition tube (1); Two flow guiding components (3) are arranged symmetrically and fixedly connected to both ends of the transition tube (1), and the two flow guiding components (3) abut against the opposite ends of the transposition tube (2), so that a buffer cavity (4) is formed inside the transposition tube (2); The filter assembly (5) is fixedly connected inside the transposition tube (2).

2. The protective device for a detachable water meter impeller with a horizontal screw wing as described in claim 1, characterized in that, The flow guiding assembly (3) includes a flange (31) and multiple flow guiding plates (32). The flange (31) is fixedly connected to the end of the transition pipe (1) by bolts. The multiple flow guiding plates (32) are arranged in a ring array and fixedly connected to the flange (31). The multiple flow guiding plates (32) extend into the interior of the transition pipe (1) and abut against the end of the transposed pipe (2).

3. The protective device for a detachable water meter impeller with a horizontal screw wing as described in claim 2, characterized in that, The flange (31) is bolted to the end of the water meter pipe.

4. A protective device for a detachable water meter impeller with a horizontal screw wing as described in claim 3, characterized in that, The transposition tube (2) is provided with a stepped surface (6), and the filter assembly (5) is connected to the stepped surface (6) by bolts.

5. A protective device for a detachable water meter impeller with a horizontal screw wing as described in claim 4, characterized in that, The filter assembly (5) includes a filter body (51) and two pressure rings (52). The two pressure rings (52) clamp the filter body (51), and one pressure ring (52) abuts against the stepped surface (6). A bolt passes through the two pressure rings (52) and the filter body (51) and is screwed onto the stepped surface (6).

Images