Flow meter

Abstract

The utility model relates to the technical field of flow meters, in particular to a flow meter which comprises a main body, a flow path is arranged in the main body, a rotating piece is supported in the flow path and can rotate in the flow path when fluid passes through the flow path, a visible window is formed in the surface of the flow path, and the position of the visible window corresponds to that of the rotating piece. The flow meter is arranged on a section of cooling channel after fluid passes through the sealing structure, and when the fluid passes through the rotating piece and the rotating piece rotates, the fluid can be observed from the visible window, so that whether the fluid circulates in the cooling channel or not can be directly judged, and whether the fluid reaches the sealing structure or not can be intuitively judged according to the rotation of the rotating piece without reading.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a flow meter. Background Art

[0002] The production process of the papermaking industry requires a large number of pulp pumps, pulping machines and other equipment. In order to prevent pulp leakage, and considering that the pulp pumps and pulping machines need to operate continuously at high speed, most equipment uses high-end mechanical seals or packing seals. Both mechanical seals and packing seals require external guide pipes to introduce cooling water to cool, cool and lubricate the sealing structure, maintain the normal operation of pulp pumps, pulping machines and other equipment, and ensure the continuous production process.

[0003] The cooling water pipe leads the cooling water to the sealing structure, and then it is discharged through another cooling water pipe. Due to long-term operation and high temperature, a large amount of scale or pulp may be generated in the cooling water pipe and at the joint between the cooling water pipe and the seal, which limits the flow space in the cooling water pipe and causes the cooling water pipe to be blocked. The blockage location is usually the outlet of the cooling water pipe. The blockage will cause the cooling water in the cooling water pipe, but the new cooling water cannot reach the sealing structure quickly, or even cannot reach the sealing structure, resulting in insufficient cooling of the sealing structure.

[0004] When the cooling water outlet of the cooling water pipe is blocked, due to the different degrees of blockage, it is not necessarily possible to see whether the blockage occurs only through the pressure gauge. When the blockage is small, the change of the pressure gauge is not intuitive and obvious. In addition, since the cooling water pipe is full of water, it is impossible to quickly judge whether the cooling water is in a circulating state in the cooling water pipe by observing the appearance of the transparent cooling water pipe. The only way is to remove the outlet end and the water storage container of the cooling water pipe and observe whether there is no water or too little water flow at the outlet of the cooling water pipe to judge whether it is blocked, which is rather troublesome. Therefore, in the prior art, a flow meter is usually installed to jointly judge whether the cooling water can enter the sealing structure by the flow meter and the pressure gauge. However, this method will occupy a longer cooling water pipeline, occupy a large space, and need to read the value, and cannot vividly, quickly and intuitively judge whether the cooling water is in place. Utility Model Content

[0005] In order to solve the technical problems that the existing method of judging whether the cooling water pipe is blocked occupies a long cooling water pipe, occupies a large space, requires reading numerical values, and cannot judge whether the cooling water is flowing in place in a vivid, fast and intuitive manner, the utility model provides a flow meter.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A flow meter includes a main body, a flow path inside the main body, a rotating part supported in the flow path, the rotating part can rotate in the flow path when a fluid passes through, and a visual window is opened on the surface of the flow path, and the position of the visual window corresponds to the rotating part. When the fluid continues to pass through the rotating part, the rotating part rotates, which can be observed from the visual window, so that it can be directly judged whether the fluid is flowing in the cooling channel. Since the flow meter is set on a cooling channel after the fluid passes through the sealing structure, it is intuitively judged from the rotation of the rotating part whether the fluid reaches the sealing structure. If the rotating part rotates, it proves that the fluid in the cooling channel is flowing and has passed through the sealing structure, and the sealing structure can be lubricated and cooled. The flow speed of the fluid can be intuitively judged from the rotation speed of the rotating part. The faster the rotating part rotates, the faster the flow speed of the fluid is, and the better the cooling and lubrication effect is.

[0008] As a preferred implementation method of a flow meter, the main body includes a pressure gauge, a flow rate meter and a flow meter, and the pressure gauge, the flow rate meter and the flow meter are arranged on the path of the flow path. The flow meter is arranged on a section of the cooling channel after the fluid passes through the sealing structure. When the fluid passes through the pressure gauge, the pressure gauge can display the real-time pressure. When the fluid continues to pass through the flow rate meter and the flow meter, the flow rate meter and the flow meter can display accurate flow rate and flow, which is convenient for recording accurate values ​​and reconfirming the flow of the fluid, so that the present application can not only satisfy the staff to judge whether the fluid reaches the sealing structure at a glance, but also provide accurate data, thereby improving the scope of application of the present application.

[0009] As a preferred implementation of a flow meter, a pressure gauge, a rotating part, a flow meter and a flow meter are arranged in sequence from the inlet to the outlet of the flow path. When the fluid passes through the pressure gauge, the pressure gauge can display the real-time pressure. When the fluid continues to pass through the rotating part, the rotating part rotates, which can be observed from the visual window, so that it can be directly judged whether the fluid is flowing in the cooling channel. Since the flow meter is set on a cooling channel after the fluid passes through the sealing structure, it is intuitively judged from the rotation of the rotating part whether the fluid reaches the sealing structure. If the rotating part rotates, it proves that the fluid in the cooling channel is flowing and has passed through the sealing structure, which can lubricate and cool the sealing structure, and the flow rate of the fluid can be intuitively judged from the rotation speed of the rotating part. The faster the rotating part rotates, the faster the flow rate of the fluid, and the better the cooling and lubrication effect. When the fluid continues to pass through the flow meter and the flow meter, the flow meter and the flow meter can display accurate flow rate and flow, which is convenient for recording accurate values ​​and confirming the flow of the fluid again.

[0010] As a preferred implementation of a flow meter, a rotating cavity matching the volume of the rotating member is provided in the flow path, the rotating member can rotate in the rotating cavity when the fluid passes through, and a first transmission mechanism is connected between the rotating shaft of the rotating member and the dial pointer of the flow meter. The first transmission mechanism can change the transmission ratio between the rotating member and the dial pointer of the flow meter, so that the dial pointer of the flow meter can indicate the real-time flow.

[0011] As a preferred implementation of a flow meter, a counter is connected between the rotating shaft of the rotating member and the dial pointer of the flow meter. The number of revolutions of the rotating member is proportional to the cumulative flow of the fluid. The cumulative value of the fluid flow can be calculated by knowing only the volume of the rotating chamber and the number of revolutions of the rotating member.

[0012] As a preferred implementation of a flow meter, a second transmission mechanism is connected between the dial pointers of the flow meter and the flow velocity meter, and the flow meter and the flow velocity meter are integrated, so as to facilitate the statistics of flow and flow velocity.

[0013] As a preferred implementation of a flow meter, the rotating member includes a gear, and the rotating shaft of the gear is arranged perpendicular to the length direction of the flow path. The gear has a simple structure, low cost and reliable operation.

[0014] As a preferred implementation of a flow meter, a plurality of gears are provided, and the plurality of gears mesh with each other.

[0015] As a preferred implementation of a flow meter, the pressure gauge is a spring-type pressure gauge, which has a simple structure and low cost.

[0016] The beneficial effects of the utility model include:

[0017] The flow meter is set on a cooling channel after the fluid passes through the sealing structure. When the fluid continues to pass through the rotating part, the rotating part rotates and can be observed from the visual window, so that it can be directly judged whether the fluid is flowing in the cooling channel. Since the flow meter is set on a cooling channel after the fluid passes through the sealing structure, it is intuitively judged from the rotation of the rotating part whether the fluid reaches the sealing structure. If the rotating part rotates, it proves that the fluid in the cooling channel is flowing and has passed through the sealing structure, which can lubricate and cool the sealing structure, and the flow speed of the fluid can be intuitively judged from the rotation speed of the rotating part. The faster the rotating part rotates, the faster the flow speed of the fluid, and the better the cooling and lubrication effect. When the fluid continues to pass through the velocity meter and flow meter, the velocity meter and flow meter can display accurate flow rate and flow, which is convenient for recording accurate values ​​and confirming the flow of the fluid again. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a simple schematic diagram of the cross-sectional structure of a specific implementation method of the utility model;

[0020] List of parts and reference numerals:

[0021] 1. Main body; 2. Flow path; 3. Rotating part; 4. Rotating chamber; 5. Visual window; 6. Pressure gauge; 7. Flow rate meter; 8. Flow meter. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0023] Reference Figure 1 The present embodiment provides a flow meter, including a main body 1, wherein the main body 1 has a flow path 2 inside, arrows A and arrows B indicate the flow direction of the fluid, a rotating member 3 is supported in the flow path 2, a rotating chamber 4 whose volume matches that of the rotating member 3 is provided in the flow path 2, and the rotating member 3 can rotate in the rotating chamber 4 when the fluid passes through; the rotating member 3 includes a gear, the rotating shaft of the gear is arranged perpendicularly to the length direction of the flow path 2, a plurality of gears are provided, and the plurality of gears are meshed with each other, that is, a plurality of meshed gears are provided in the rotating chamber 4; a visible window 5 is provided on the surface of the flow path 2, and the position of the visible window 5 corresponds to the rotating member 3; the main body 1 includes a pressure gauge 6, a flow rate meter 7 and a flow meter 8 arranged on the path of the flow path 2, the pressure gauge 6 is a spring-type pressure gauge 6, when the fluid passes through the pressure gauge 6, the spring is compressed, and the dial pointer of the pressure gauge 6 can rotate, thereby displaying the real-time pressure, and the pressure gauge 6, the rotating member 3, the flow rate meter 7 and the flow meter 8 are arranged from the inlet to the outlet of the flow path 2 in sequence.

[0024] A first transmission mechanism is connected between the rotating shaft of the rotating member 3 and the dial pointer of the flow meter 8. When the fluid passes through the rotating member 3, a counter is connected between the rotating shaft of the rotating member 3 and the dial pointer of the flow meter 8. When the fluid passes through the rotating member 3, the pressure difference on both sides of the rotating member 3 can drive the rotating member 3 to rotate. The volume of fluid output per rotation of the rotating member 3 is fixed. The rotation of the rotating member 3 can drive the counter and the first transmission mechanism to rotate. The rotation speed of the rotating member 3 is proportional to the real-time flow rate of the fluid. The first transmission mechanism can change the transmission ratio between the rotating member 3 and the dial pointer of the flow meter 8, so that the dial pointer of the flow meter 8 can indicate the real-time flow rate. The number of rotations of the rotating member 3 is proportional to the cumulative flow rate of the fluid. The cumulative value of the fluid flow rate can be calculated by knowing the volume of the rotating chamber 4 and the number of rotations of the rotating member 3.

[0025] A second transmission mechanism is connected between the dial pointers of the flow meter 8 and the flow velocity meter 7, and the flow meter 8 and the flow velocity meter 7 are integrally arranged. There is a conversion relationship between the flow rate and the flow velocity, and the flow rate is equal to the product of the flow velocity and the cross-sectional area of ​​the pipeline. The second transmission mechanism can change the transmission ratio between the dial pointers of the flow meter 8 and the flow velocity meter 7 to complete the conversion between the flow rate and the flow velocity. When the dial pointer of the flow meter 8 rotates, the real-time flow rate can be converted into the real-time flow velocity through the transmission of the second transmission mechanism, so that the dial pointer of the flow velocity meter 7 rotates to the value of the current flow velocity.

[0026] The working principle of this embodiment is:

[0027] The flow meter is set on a cooling channel after the fluid passes through the sealing structure. When the fluid passes through the pressure gauge 6, the pressure gauge 6 can display the real-time pressure. When the fluid continues to pass through the rotating part 3, the rotating part 3 rotates. The rotation of the rotating part 3 is more eye-catching and can be observed from the visual window 5, so that it can be directly judged whether the fluid is flowing in the cooling channel. Since the flow meter is set on a cooling channel after the fluid passes through the sealing structure, it is intuitively judged from the rotation of the rotating part 3 whether the fluid reaches the sealing structure without reading. If the rotating part 3 rotates, it proves that the fluid in the cooling channel is flowing and has passed through the sealing structure, which can lubricate and cool the sealing structure, and the flow speed of the fluid can be intuitively judged from the rotation speed of the rotating part 3. The faster the rotating part 3 rotates, the faster the flow speed of the fluid, and the better the cooling and lubrication effect. When the fluid continues to pass through the flow meter 7 and the flow meter 8, the flow meter 7 and the flow meter 8 can display accurate flow rate and flow, which is convenient for recording accurate values ​​and confirming the flow of the fluid again.

[0028] The rotating member 3 in this embodiment can be set to bright colors, such as red, yellow, blue, etc., one or more colors, which is convenient for finding the position of the flow meter from a distance and for observing whether the rotating member 3 is rotating from a distance.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flow meter comprising a main body (1), It is characterized in that The main body (1) has a flow path (2) inside, and a rotating member (3) is supported inside the flow path (2). The rotating member (3) can rotate inside the flow path (2) when a fluid passes through. A visible window (5) is provided on the surface of the flow path (2), and the position of the visible window (5) corresponds to the rotating member (3).

2. A flow meter according to claim 1, It is characterized in that The main body (1) comprises a pressure gauge (6), a flow rate gauge (7) and a flow meter (8), and the pressure gauge (6), the flow rate gauge (7) and the flow meter (8) are arranged on the path of the flow path (2).

3. A flow meter according to claim 2, It is characterized in that From the inlet to the outlet of the flow path (2), a pressure gauge (6), a rotating member (3), a flow rate meter (7) and a flow meter (8) are arranged in sequence.

4. A flow meter according to claim 3, It is characterized in that A rotating chamber (4) having a volume matching that of the rotating member (3) is provided in the flow path (2); the rotating member (3) can rotate in the rotating chamber (4) when fluid passes through, and a first transmission mechanism is connected between a rotating shaft of the rotating member (3) and a dial pointer of a flow meter (8).

5. A flow meter according to claim 4, It is characterized in that A counter is connected between the rotating shaft of the rotating member (3) and the dial pointer of the flow meter (8).

6. A flow meter according to claim 4, It is characterized in that A second transmission mechanism is connected between the dial pointers of the flow meter (8) and the flow rate meter (7), and the flow meter (8) and the flow rate meter (7) are arranged as one body.

7. A flow meter according to claim 2 or 3, It is characterized in that The rotating member (3) comprises a gear, and the rotating shaft of the gear is arranged perpendicular to the length direction of the flow path (2).

8. A flow meter according to claim 7, It is characterized in that There are a number of gears, which mesh with each other.

9. A flow meter according to claim 2, It is characterized in that The pressure gauge (6) is a spring-type pressure gauge (6).

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