A turbine flowmeter with individually replaceable turbine

Abstract

The utility model relates to energy storage fire control technical field discloses a turbine flowmeter that turbine can be replaced alone, including respectively placing two end supports of valve body pipeline's both ends, two end supports include the elastic locking spare of forming elastic open end, and elastic open end can change open size, place the intermediate support between two end supports, and the turbine is placed between two end supports and intermediate support respectively, one end of turbine is connected with intermediate support, and the other end of turbine passes through the elastic open end of elastic locking spare, the utility model discloses setting two end supports and intermediate support constraint turbine's axial and radial degree of freedom, so that fire liquid can impact turbine and make it rotate, secondly, two end supports form detachable connection with turbine through elastic open end, and intermediate support forms detachable connection with turbine through support seat, so that turbine can be replaced alone, and further reduce the replacement cost of turbine flowmeter.

Description

Technical Field

[0001] This utility model relates to the field of energy storage and fire protection technology, specifically to a turbine flow meter with a replaceable turbine. Background Technology

[0002] In electrochemical energy storage power stations, the fire protection system is the core key to ensuring its safe and stable operation. Turbine flow meters, due to their advantages of fast response and high measurement accuracy, are widely used in energy storage fire protection pipelines to monitor the jet flow of fire protection media (such as perfluorohexanone and water-based extinguishing agents) in real time and accurately, providing crucial data for fire early warning and linkage control. However, existing turbine flow meters used in energy storage fire protection face severe challenges under long-term use or specific operating conditions: First, the fire protection media itself may be corrosive, causing long-term erosion of the blade material; second, during system commissioning, maintenance, or operation, the fire protection media may contain hard particles such as welding slag and oxides from the pipeline, which impact the blades at high speed, causing wear, deformation, or even breakage of the blade edges; furthermore, when the fire protection system operates, the high-speed flow of the media also causes a strong erosion effect on the blades.

[0003] Currently, traditional turbine flow meters typically employ an integrated design, where the turbine impeller, central hub, and shaft are a single, integral component or fixed using non-removable methods (such as welding or interference fit). When turbine blades fail due to these reasons, causing inaccurate flow meter readings, maintenance personnel cannot replace the damaged blades individually; the entire impeller assembly and even the entire sensor core must be replaced. This repair method has significant drawbacks: poor economic efficiency, high cost of replacing the entire component, and users having to pay for undamaged parts like the hub and shaft, resulting in unnecessary waste. Utility Model Content

[0004] To address the high replacement cost of existing turbine flow meters, this invention provides a turbine flow meter with a replaceable turbine. The specific technical solution is as follows: A turbine flow meter with a replaceable turbine, the turbine flow meter being placed in a valve body pipeline, comprising: two end supports respectively placed at both ends of the valve body pipeline, the two end supports including elastic locking elements forming elastic open ends, the elastic open ends being capable of changing the opening size; an intermediate support placed between the two end supports; and a turbine respectively placed between the two end supports and the intermediate support, one end of the turbine being connected to the intermediate support, and the other end of the turbine passing through the elastic open end of the elastic locking element.

[0005] Furthermore, the two end supports also include fixed discs connected to both ends of the valve body pipe; the elastic locking component also includes several connecting plates with one end connected to the fixed disc, the length direction of the connecting plate is the length direction of the valve body pipe, the other end of the connecting plate is vertically connected to the locking ring support foot, the other end of the locking ring support foot is connected to several locking ring arcs, and the locking ring arcs are connected end to end to form an elastic open end.

[0006] Preferably, the elastic locking member further includes a plurality of guide protrusions formed along the length direction on the surface of the connecting plate. The guide protrusions are not continuously connected, and the length direction of the guide protrusions is consistent with the length direction of the connecting plate.

[0007] Preferably, the intermediate support includes several portal legs, the height of which is half the inner diameter of the valve body pipe. The legs of the portal legs converge at the support base, which is connected to one end of the turbine. The axis of the support base coincides with the axis of the turbine.

[0008] Preferably, the turbine includes a rotating shaft, with both ends of the rotating shaft forming detachable connections with end supports and a middle support, and a plurality of blades evenly distributed around the rotating shaft to enable a magnetoelectric induction converter to measure the rotational speed of the blades.

[0009] As can be seen from the above technical solution, this utility model has the following beneficial effects: This utility model sets up two end supports and a middle support to constrain the axial and radial degrees of freedom of the turbine, so that the fire-fighting liquid can impact the turbine and make it rotate; secondly, the two end supports are detachably connected to the turbine through elastic open ends, and the middle support is detachably connected to the turbine through a support seat, so that the turbine can be disassembled and replaced separately, thereby reducing the replacement cost of the turbine flow meter. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the fire-fighting flow valve in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of an embodiment of the two-end support.

[0011] In the diagram: 1. Turbine; 11. Shaft; 12. Blade; 2. Intermediate support; 21. Portal support; 22. Support base; 3. End supports; 31. Fixed disc; 32. Elastic locking element; 321. Connecting plate; 322. Guide protrusion; 323. Locking ring support; 324. Locking ring arc; 4. Magnetoelectric induction converter; 5. Valve body pipe. Detailed Implementation

[0012] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They 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. Therefore, they should not be construed as limitations on this utility model.

[0014] like Figure 1 As shown, the internal structure of the energy storage fire-fighting flow valve forms a valve body pipe 5, in which a split turbine flow meter is placed. The two ends of the turbine flow meter are fixedly connected to the two ends of the valve body pipe 5, and their axes coincide, thereby measuring the flow velocity of the fire-fighting liquid flowing through the valve body pipe 5.

[0015] like Figure 2 As shown, the turbine flow meter includes: two end supports 3 respectively placed at both ends of the valve body pipe 5, the two end supports 3 including elastic locking members 32 forming elastic open ends, the elastic open ends being able to change the opening size; an intermediate support 2 placed between the two end supports 3; and a turbine 1 respectively placed between the two end supports 3 and the intermediate support 2, one end of the turbine 1 being connected to the intermediate support 2, and the other end of the turbine 1 passing through the elastic open end of the elastic locking member 32.

[0016] Specifically, the valve body pipe 5 is provided with two end supports 3, turbine 1, intermediate support 2, turbine 1 again, and two end supports 3 in sequence from left to right. The end of turbine 1 connected to the two end supports 3 is the rotating end, and the end of turbine 1 connected to the intermediate support 2 is the supporting end. Among them, the elastic locking member 32 is rotatably connected to the rotating end of turbine 1 through an elastic open end. The elastic open end has an elastic structure to change its own diameter, thereby adapting to the diameter of the rotating end of turbine 1, so that the rotating end of turbine 1 and the elastic open end form an elastic locking structure. It can quickly fix and separate from turbine 1, and also restrict the axial movement of turbine 1, thereby improving the connection between turbine 1 and the two end supports. The separation efficiency of bracket 3; secondly, the support ends of turbine 1 rotate relative to the two ends of intermediate bracket 2, and the two ends of intermediate bracket 2 can restrict the axial movement of turbine 1, so that turbine 1 and the two end brackets 3 and intermediate bracket 2 are axially fixed, so that turbine 1 will not have radial position displacement when rotating, thereby avoiding interference with the inner wall of valve body pipe 5 when rotating; secondly, both ends of turbine 1 form a quick separation structure with the two end brackets 3 and intermediate bracket 2, so that when repairing or replacing turbine 1, the operator can quickly separate turbine 1 from the two end brackets 3 and intermediate bracket 2, and only replace the damaged turbine 1, reducing the replacement cost of turbine 1.

[0017] like Figure 3 As shown, Figure 3 The diagram shows the structure of the two end supports 3 located at the right end of the valve body pipe 5. The two end supports 3 also include fixed discs 31 connected to both ends of the valve body pipe 5. The elastic locking member 32 also includes several connecting plates 321 with one end connected to the fixed discs 31. The length direction of the connecting plates 321 is the length direction of the valve body pipe 5. The other end of each connecting plate 321 is vertically connected to a locking ring support foot 323. The other end of the locking ring support foot 323 is connected to several locking ring arcs 324. The locking ring arcs 324 are connected end to end to form an elastic open end.

[0018] Specifically, the fixed disc 31 is annular in shape, with the inlet or outlet of the flow valve forming in the center. Through holes are evenly formed around its circumference, allowing it to be fixedly connected to both ends of the valve body pipe 5 via bolts. This ensures that the fixed disc 31 and the valve body pipe 5 are coaxial, thereby stabilizing the position of the elastic locking member 32 relative to the valve body pipe 5. Secondly, four connecting plates 321 are evenly welded around the fixed disc 31. The connecting plates 321 are elastic metal plates, with their length direction aligned with the axial direction of the fixed disc 31, and their width direction aligned with the tangent direction of the fixed disc 31. The left end of the connecting plate 321 (… Figure 3Each of the four locking ring supports 323 is welded with a locking ring foot 323. The length direction of the locking ring foot 323 is perpendicular to the length direction of the connecting plate 321, that is, it is consistent with the radial direction of the fixed disc 31. The width direction is consistent with the axial direction of the fixed disc 31, so that one end of each of the four locking ring supports 323 converges at one point and each is welded with a locking ring arc 324. Multiple locking ring arcs 324 are connected end to end to form a split structure. The inner diameter of the locking ring arc 324 is the inner diameter of the elastic opening end. When the locking ring arc 324 moves radially outward to expand the inner diameter of the elastic opening end, it drives the connecting plate 321 to bend outward through the locking ring foot 323, so as to generate elastic potential energy. After the rotating end of the turbine 1 passes through the elastic opening end, the locking ring arc 324 moves inward under the drive of the connecting plate 321 and returns to the initial position. At this time, the locking ring arc 324 can restrict the rotating end of the turbine 1 to move axially, while not affecting the rotation of the turbine 1 relative to the locking ring arc 324. When replacing the turbine 1, the operator enlarges the size of the elastic opening end to quickly remove the turbine 1.

[0019] The outer side of the locking ring arc 324 can be welded and fixed to the two locking ring legs 323, or it can be welded and fixed to a single locking ring bracket.

[0020] Furthermore, the elastic locking member 32 also includes a number of guide protrusions 322 formed along the length direction on the surface of the connecting plate 321. The guide protrusions 322 are not connected continuously, and the length direction of the guide protrusions 322 is consistent with the length direction of the connecting plate 321.

[0021] Specifically, a single connecting plate 321 is welded with two elongated guide protrusions 322 along its length. The length direction of the two guide protrusions 322 is consistent with the length direction of the connecting plate 321, and the protrusion direction of the two guide protrusions 322 is perpendicular to the width direction of the connecting plate 321. This enhances the bending strength of the connecting plate 321 and improves the constraint ability of the elastic opening end on the rotating end of the turbine 1. Secondly, the two guide protrusions 322 are not connected and fixed, but have a gap in the middle. This ensures that when the connecting plate 321 bends outward, the opposite ends of the two guide protrusions 322 do not interfere with each other, thereby increasing the bending degree of the connecting plate 321 and increasing the dimensional change range of the elastic opening end.

[0022] Furthermore, the intermediate support 2 includes several portal-shaped legs 21. The height of the portal-shaped legs 21 is half the inner diameter of the valve body pipe 5. The legs of the portal-shaped legs 21 converge at the support base 22. The support base 22 is connected to one end of the turbine 1. The axis of the support base 22 coincides with the axis of the turbine 1.

[0023] Specifically, the intermediate support 2 has three portal-shaped legs 21 evenly distributed along the axial direction. The cross-section of the portal-shaped legs 21 is U-shaped, forming a hollow structure to allow the flow of fire-fighting liquid. Secondly, vertical sidewalls are welded to both ends of the top of the portal-shaped legs 21, with both sides being leg segments of the portal-shaped legs 21. The length direction of the top of the portal-shaped legs 21 is consistent with the length direction of the two end supports 3 and also with the length direction of the turbine 1. The length direction of the leg segments of the portal-shaped legs 21 is perpendicular to the length direction of their tops and consistent with the length direction of the locking ring legs 323. The three legs are arranged circumferentially... The evenly distributed support segments converge at the support base 22 in the middle position. The support base 22 and the support segments are fixed by welding. The axis of the support base 22 coincides with the axis of the turbine 1. The support base 22 forms a groove for placing the support end of the turbine 1, so that the support end of the turbine 1 can rotate relative to the support base 22 and also avoids moving axially towards the intermediate support 2. It cooperates with the supports 3 at both ends to constrain the axial degree of freedom of the turbine 1. Secondly, the support base 22 can be quickly separated from the support end of the turbine 1 through the groove to improve the separation efficiency of the turbine 1 and the intermediate support 2.

[0024] Secondly, the support seats 22 at both ends are connected to the independently rotating turbine 1, and then cooperate with the elastic locking parts 32 at both ends to constrain the axial and radial degrees of freedom of the turbine 1, retaining only its rotational degree of freedom. This allows the turbine 1 to rotate under the impact of fire-fighting liquid to measure the flow rate of the fire-fighting liquid, and also allows for the quick replacement of damaged and corroded turbine 1, reducing the replacement cost of the turbine flow meter.

[0025] Furthermore, the turbine 1 includes a rotating shaft 11, with both ends of the rotating shaft 11 being detachably connected to the end supports 3 and the middle support 2, respectively. Several blades 12 are evenly distributed around the rotating shaft 11 so that the magnetoelectric induction converter 4 can measure the rotational speed of the blades 12.

[0026] Specifically, the rotating end of the shaft 11 is stepped to fit the locking ring arc 324, so that the locking ring arc 324 can restrict the axial movement of the shaft 11. At the same time, the relatively separable locking ring arc 324 and the rotating end of the shaft 11 form a detachable connection. Secondly, the supporting end of the shaft 11 is placed in the groove of the support seat 22, so that the locking ring arc 324 and the support seat 22 cooperate with each other to constrain the axial degree of freedom of the shaft 11. Thirdly, the fire-fighting liquid impacts the blade 12 to make it rotate. The magnetoelectric induction converters 4 set at both ends of the valve body pipe 5 can detect the rotation speed of the blade 12 at both ends, and then measure the flow velocity of the fire-fighting liquid at both ends of the valve body pipe 5.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0028] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A turbine flowmeter with individually replaceable turbine, said turbine flowmeter being placed in a valve body conduit (5), characterized in that, The turbine flow meter includes: Two end supports (3) are respectively placed at both ends of the valve body pipe (5). The two end supports (3) include elastic locking members (32) forming elastic open ends, and the elastic open ends can change the opening size. An intermediate support (2) is placed between the two end supports (3); as well as A turbine (1) is placed between the two end supports (3) and the middle support (2), with one end of the turbine (1) connected to the middle support (2) and the other end of the turbine (1) passing through the elastic opening end of the elastic locking member (32).

2. The turbine flow meter of claim 1, wherein: The two-end brackets (3) also include fixed discs (31) connected to both ends of the valve body pipe (5); The elastic locking member (32) also includes several connecting plates (321) with one end connected to the fixed disc (31). The length direction of the connecting plate (321) is the length direction of the valve body pipe (5). The other end of the connecting plate (321) is vertically connected to the locking ring support (323). The other end of the locking ring support (323) is connected to several locking ring arcs (324). The locking ring arcs (324) are connected end to end to form the elastic opening end.

3. The turbine flow meter of claim 2, wherein: The elastic locking member (32) further includes a plurality of guide protrusions (322) formed along the length direction on the surface of the connecting plate (321). The guide protrusions (322) are not connected continuously, and the length direction of the guide protrusions (322) is consistent with the length direction of the connecting plate (321).

4. The turbine flow meter of claim 1, wherein: The intermediate support (2) includes several portal legs (21), the height of which is half the inner diameter of the valve body pipe (5). The legs of the portal legs (21) converge at the support base (22), which is connected to one end of the turbine (1). The axis of the support base (22) coincides with the axis of the turbine (1).

5. The turbine flow meter of claim 1, wherein: The turbine (1) includes a rotating shaft (11), the two ends of which are detachably connected to the two end supports (3) and the middle support (2), respectively. A plurality of blades (12) are evenly distributed around the rotating shaft (11) so that the magnetoelectric induction converter (4) measures the rotational speed of the blades (12).

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