Water quality sampling device of heat supply system

Abstract

The invention discloses a water quality sampling device of a heat supply system, and belongs to the technical field of sampling, the water quality sampling device comprises a pipe body mounted between heat supply pipelines, a driving pipe is arranged on the pipe body in a penetrating manner, a driving part is connected to the outside of the driving pipe, a rotating plate is fixedly connected to the inner end of the driving pipe, and a first sampling pipe which can rotate relative to the rotating plate and is elastically reset is arranged in the rotating plate; the upper end of the first sampling pipe penetrates through the driving pipe, and a plurality of first sampling holes and second sampling holes which can be aligned one by one are respectively formed in the rotating plate and the first sampling pipe at equal intervals; a semicircular plate is arranged on one side of the rotating plate, a baffle is arranged on the inner wall of the pipe body, a channel is formed in the semicircular plate, the first sampling pipe is fixedly connected and communicated with a second sampling pipe, the second sampling pipe is located in the channel, and a third sampling hole and a fourth sampling hole are formed in the lower sides of the second sampling pipe and the semicircular plate. The device has the advantage that the requirements of sampling at different flow speeds and different radial positions and sampling in a closed space can be met simultaneously under a single driving source.

Description

Technical Field

[0001] This invention belongs to the field of sampling technology, and in particular relates to a water quality sampling device for a heating system. Background Technology

[0002] In the operation and maintenance of heating systems, water quality sampling and analysis is a crucial step in ensuring the safe and stable operation of the system. By testing the water quality, the content of impurities, corrosive substances, microorganisms, and other components in the water can be determined in a timely manner, allowing for targeted treatment measures to prevent problems such as pipe blockage and accelerated corrosion.

[0003] Currently, water sampling devices for heating systems have many shortcomings in practical applications. Existing devices struggle to simultaneously and accurately sample different radial locations within the pipe when water flows at varying velocities. Since water flow velocity affects the representativeness of the sample, and water quality may differ at different radial locations, the water samples obtained by existing devices often fail to fully reflect the true water quality conditions within the heating system.

[0004] Meanwhile, existing devices typically require additional structures and operational steps to complete sampling in enclosed spaces, resulting in complex and inefficient operations. Furthermore, to meet sampling conditions of varying flow rates, radial positions, and enclosed spaces, most existing sampling devices require multiple drive and control sources to control the actions of individual components. This not only increases the overall structural complexity and manufacturing costs but also easily leads to decreased sampling accuracy due to coordination issues between multiple control sources, thereby reducing the device's reliability and stability.

[0005] Therefore, developing a water quality sampling device for heating systems that can simultaneously meet the sampling requirements of different flow velocities, different radial positions, and enclosed spaces under a single driving source has become an urgent technical problem to be solved in this field. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides a water quality sampling device for a heating system, which has the advantages of being able to simultaneously meet the sampling requirements of different flow velocities, different radial positions, and enclosed spaces under a single driving source, thus solving the problems of the prior art.

[0007] This invention is implemented as follows: a water quality sampling device for a heating system includes a pipe body installed between heating pipelines, a drive tube passing through the pipe body, a drive component connected to the outside of the drive tube, a rotating plate fixedly connected to the inner end of the drive tube, a first sampling tube that can rotate relative to the rotating plate and elastically return to its original position in the rotating plate, the upper end of the first sampling tube passing through the drive tube, and a plurality of first sampling holes and second sampling holes that can be aligned one-to-one equidistantly provided on the rotating plate and the first sampling tube; a semi-circular plate is provided on one side of the rotating plate, a baffle is provided on the inner wall of the pipe body, a channel is provided inside the semi-circular plate, the first sampling tube is fixedly connected to and communicates with a second sampling tube, the second sampling tube is located in the channel, and a third sampling hole and a fourth sampling hole are opened on the lower side of the second sampling tube and the semi-circular plate; The baffle has an arc-shaped slide rail on its arc-shaped edge. The end of the second sampling tube is slidably connected to the arc-shaped slide rail. When the second sampling tube touches the end of the arc-shaped slide rail, it can rotate the first sampling tube so that the first sampling hole and the second sampling hole are misaligned.

[0008] As a preferred embodiment of the present invention, the edge of the rotating plate is fitted with a first sealing layer, which can adhere to the inner wall of the tube body, and the arc-shaped edge of the semi-circular plate is provided with a second sealing layer, which can adhere to the arc-shaped surface of the baffle.

[0009] As a preferred embodiment of the present invention, both the first sealing layer and the second sealing layer are rubber airbag structures and are interconnected.

[0010] As a preferred embodiment of the present invention, the upper half of the rotating plate is provided with a through hole.

[0011] In a preferred embodiment of the present invention, the rotating plate is provided with a radially arranged circular groove communicating with the driving tube, the first sampling hole is opened on the rotating plate and communicates with the circular groove, and the first sampling hole is inserted into the circular groove; the first sampling tube is connected to the driving tube through an elastic element.

[0012] As a preferred embodiment of the present invention, the channel is a rectangular channel, the second sampling tube is a rectangular sampling tube, and the second sampling tube can be tilted to opposite sides of the channel.

[0013] In a preferred embodiment of the present invention, the circular groove is a threaded groove, the first sampling tube is an externally threaded tube, and the driving tube is an internally threaded tube; the first sampling tube has an insertion port, and the end of the second sampling tube is inserted into the insertion port; the lower end of the driving tube has a retaining groove, and the rotating plate is retained in the retaining groove.

[0014] As a preferred embodiment of the present invention, the second sampling hole and the second sampling tube are respectively located on opposite sides of the first sampling tube.

[0015] As a preferred embodiment of the present invention, the baffle is fixedly welded to the inner wall of the pipe; both ends of the pipe are fixedly connected with flanges for connection to pipelines.

[0016] In a preferred embodiment of the present invention, the driving component includes a gear ring, a gear, and a motor; the gear ring is fixedly sleeved on the driving tube, the motor is fixedly connected to the outer surface of the tube body, the gear is fixedly connected to the output shaft of the motor, and the gear meshes with the gear ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This device uses only a single drive component to rotate the drive tube, providing the sole power source for switching between different sampling modes and coordinating the control of the rotating plate, the first sampling tube, and the second sampling tube. This eliminates the need for multiple drive and control sources, significantly simplifying the overall structure and reducing manufacturing and maintenance costs. Because of the single drive source, operators only need to control the rotation of the drive component to switch between different sampling states, eliminating the need to manipulate multiple components separately. This simplifies the operation process and improves sampling efficiency, making it particularly suitable for heating systems that require frequent water sampling.

[0018] 2. It can sample at different radial locations inside the pipe under varying flow velocities, providing a more comprehensive reflection of the actual water quality within the heating system and offering a reliable sample basis for water quality analysis. It can perform sampling not only in non-enclosed spaces at different flow velocities and radial locations, but also in enclosed spaces, meeting the needs of various sampling scenarios in heating systems and improving the adaptability and practicality of the device.

[0019] 3. The mechanical linkage between the components enables the switching of actions, which reduces the use of electronic control components, lowers the risk of device failure due to electronic component failure, and avoids coordination problems between multiple control sources, thereby improving the operational reliability and stability of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the water quality sampling device for the heating system provided in Embodiment 1 of the present invention; Figure 2 This is provided in Embodiment 1 of the present invention. Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This is a top view of the water quality sampling device for the heating system provided in Embodiment 1 of the present invention. Figure 4 This is a structural schematic diagram provided in Embodiment 1 of the present invention. Figure 3 Enlarged structural diagram of the BB section; Figure 5This is provided in Embodiment 1 of the present invention. Figure 4 A magnified structural diagram of section C; Figure 6 This is provided in Embodiment 1 of the present invention. Figure 4 A magnified structural diagram of section D in the middle; Figure 7 This is a three-dimensional structural diagram of the drive tube, rotating plate, and semi-circular plate provided in Embodiment 1 of the present invention; Figure 8 This is provided in Embodiment 1 of the present invention. Figure 7 A magnified structural diagram of section E in the middle; Figure 9 This is a schematic diagram of the structure of the baffle and arc-shaped slide provided in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the through hole portion provided in Embodiment 2 of the present invention.

[0021] In the diagram: 1. Pipe body; 2. Drive pipe; 3. Rotating plate; 4. First sampling pipe; 5. First sampling hole; 6. Second sampling hole; 7. Semicircular plate; 8. Baffle; 9. Channel; 10. Second sampling pipe; 11. Third sampling hole; 12. Fourth sampling hole; 13. Arc-shaped slide; 14. First sealing layer; 15. Second sealing layer; 16. Through hole; 17. Elastic element; 18. Socket; 19. Slot; 20. Flange. Detailed Implementation

[0022] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0023] The structure of the present invention will now be described in detail with reference to the accompanying drawings. Example 1

[0024] like Figures 1 to 9As shown in the figure, an embodiment of the present invention provides a water quality sampling device for a heating system, including a pipe body 1 installed between heating pipes, a drive pipe 2 passing through the pipe body 1, a drive component connected to the outside of the drive pipe 2, a rotating plate 3 fixedly connected to the inner end of the drive pipe 2, a first sampling tube 4 that can rotate relative to the rotating plate 3 and elastically return to its original position in the rotating plate 3, the upper end of the first sampling tube 4 passing through the drive pipe 2, and a plurality of first sampling holes 5 and second sampling holes 6 that can be aligned one-to-one equidistantly provided on the rotating plate 3 and the first sampling tube 4; a semi-circular plate 7 is provided on one side of the rotating plate 3, and the pipe body... The inner wall is provided with a baffle 8, and the semicircular plate 7 is provided with a channel 9. The first sampling tube 4 is fixedly connected to and communicates with the second sampling tube 10. The second sampling tube 10 is located in the channel 9. The second sampling tube 10 and the lower side of the semicircular plate 7 are provided with a third sampling hole 11 and a fourth sampling hole 12. The arc-shaped edge of the baffle 8 is provided with an arc-shaped slide rail 13. The end of the second sampling tube 10 is slidably connected to the arc-shaped slide rail 13. When the second sampling tube 10 touches the end of the arc-shaped slide rail 13, it can rotate the first sampling tube 4 to make the first sampling hole 5 and the second sampling hole 6 misaligned.

[0025] The water sampling device for this heating system drives the drive tube 2 to rotate via a drive component. By coordinating the various components, different sampling methods can be switched. The specific working principle is as follows: First sampling state (non-enclosed space, sampling at different flow velocities and radial positions): When the driving component drives the driving tube 2 to rotate, so that the second sampling tube 10 does not touch the end of the arc-shaped slide 13, the first sampling tube 4 remains stationary relative to the rotating plate 3 because it is elastically connected to the rotating plate 3 and is not subject to external force. At this time, the first sampling holes 5 on the rotating plate 3 are aligned with the second sampling holes 6 on the first sampling tube 4. At the same time, the second sampling tube 10 is offset from the third sampling hole 11 and the fourth sampling hole 12 on the lower side of the semi-circular plate 7. Water flows inside the tube body 1, and water samples at different radial positions enter the first sampling tube 4 through the aligned first sampling holes 5 and second sampling holes 6 to achieve sampling. Furthermore, by driving the driving component to rotate the rotating plate 3 to different positions, the water flow in the tube body 1 changes through the channel 9 of the rotating plate 3, thereby changing the water flow velocity and thus achieving sampling of water samples at different flow velocities.

[0026] Second sampling state (closed space sampling): When the driving component drives the driving tube 2 to rotate until the rotating plate 3 blocks the tube body 1 (the two axes coincide), the rotating plate 3, baffle 8, semi-circular plate 7, and inner wall of the tube body 1 together form a closed water storage space, at which time the water flow is blocked in the closed space. During the rotation of the rotating plate 3 to this position, the end of the second sampling tube 10 slides in the arc-shaped slide 13 and touches the end of the arc-shaped slide 13, and tilts slightly after being squeezed. The tilting of the second sampling tube 10 causes the first sampling tube 4 to rotate relative to the rotating plate 3, so that the first sampling hole 5 and the second sampling hole 6 are misaligned, preventing water from the non-closed space from entering the first sampling tube 4. At the same time, the tilting of the second sampling tube 10 aligns the third sampling hole 11 and the fourth sampling hole 12, and the water sample in the closed space enters the second sampling tube 10 through the aligned third sampling hole 11 and fourth sampling hole 12, completing the sampling of the closed space.

[0027] Third sampling state (non-sampling state at high flow rate): When the driving component drives the driving tube 2 to rotate until the second sampling tube 10 touches the other end of the arc-shaped slide 13, and the rotating plate 3 does not block the tube body 1 and the axes of the two are perpendicular, the water flow velocity in the tube body 1 reaches its fastest. At this time, because the second sampling tube 10 touches the end of the arc-shaped slide 13, it is pushed by an external force to rotate the first sampling tube 4, causing the first sampling hole 5 and the second sampling hole 6 to be misaligned, making it impossible to sample through the first sampling tube 4. At the same time, the third sampling hole 11 and the fourth sampling hole 12 are also misaligned, and the entire device is in a non-sampling state.

[0028] Furthermore, since the first sampling tube 4 and the rotating plate 3 are elastically connected, the first sampling tube 4 can elastically reset after the external force disappears. By driving the second sampling tube 10 to rotate relative to the axis of the first sampling tube 4, the connection between the first sampling hole 5 and the second sampling hole 6, or between the third sampling hole 11 and the fourth sampling hole 12, can be achieved. This switching process can be completed by the single power source of the driving tube 2, which is driven by the driving component. It is not necessary to operate the rotating plate 3, the first sampling tube 4, and the second sampling tube separately.

[0029] Furthermore, a first sealing layer 14 is attached to the edge of the rotating plate 3, which can adhere to the inner wall of the tube body 1. A second sealing layer 15 is provided on the arc-shaped edge of the semi-circular plate 7, which can adhere to the arc-shaped surface of the baffle 8. Both the first sealing layer 14 and the second sealing layer 15 are rubber airbag structures and are interconnected.

[0030] With this configuration, when the first sealing layer 14 does not compress the inner wall of the tube 1 (the baffle 8 does not block the tube 1), the gas in the first sealing layer 14 will not enter the second sealing layer 15. At this time, the gas in the second sealing layer 15 is relatively small and will not adhere tightly to the arc-shaped edge of the baffle 8, thus not hindering the rotation of the rotating plate 3. When the first sealing layer 14 compresses the inner wall of the tube 1 (achieving a seal between the baffle 8 and the tube 1), the gas in the first sealing layer 14 is squeezed into the second sealing layer 15, thereby achieving a seal between the semicircular plate 7 and the baffle 8.

[0031] Specifically, the rotating plate 3 has a radially arranged circular groove communicating with the driving tube 2. The first sampling hole 5 is opened on the rotating plate 3 and communicates with the circular groove, and the first sampling hole 5 is inserted into the circular groove. The first sampling tube 4 is connected to the driving tube 2 through an elastic element 17 (for example, the first sampling tube 4 is connected to a spring piece, and the upper end of the driving tube 2 is provided with two limiting posts, with the spring piece located between the two limiting pieces). The channel 9 is a rectangular channel, and the second sampling tube 10 is a rectangular sampling tube, and the second sampling tube 10 can tilt to the opposite sides of the channel 9.

[0032] The circular groove is a threaded groove, the first sampling tube 4 is an externally threaded tube, and the driving tube 2 is an internally threaded tube; the first sampling tube 4 has an insertion port 18, and the end of the second sampling tube 10 is inserted into the insertion port 18; the lower end of the driving tube 2 has a retaining groove 19, and the rotating plate 3 is retaining in the retaining groove 19.

[0033] This design facilitates the installation and disassembly of components. For example, during installation, the rotating plate 3 is first placed into the tube body 1, then the drive tube 2 is passed through the tube body 1, allowing the slot 19 to hold the rotating plate 3 in place. The first sampling tube 4 is then screwed into the drive tube 2 and the circular slot, thus completing the connection between the three components. It should be noted that to ensure the first sampling hole 5 and the second sampling hole 6 are staggered, a slight rotation of 20°-40° is sufficient for the first sampling tube 4, without significant vertical movement. Furthermore, one end of the second sampling tube 10 is limited by the insertion port 18, and the other end is limited by the arc-shaped slide rail 13, preventing the second sampling tube 10 from detaching from the insertion port 18 and allowing for easy separation of the two sampling tubes during disassembly. The second sampling hole 6 and the second sampling tube 10 are located on opposite sides of the first sampling tube 4.

[0034] Specifically, the baffle 8 is fixedly welded to the inner wall of the pipe body 1; both ends of the pipe body 1 are fixedly connected with flanges 20 for connection with pipelines.

[0035] Furthermore, the driving component includes a gear ring, a gear, and a motor; the gear ring is fixedly sleeved on the driving tube 2, the motor is fixedly connected to the outer surface of the tube body 1, and the gear is fixedly connected to the output shaft of the motor, meshing with the gear ring. Alternatively, the driving component may consist solely of a lever, allowing the driving tube 2 to rotate manually or electrically. The driving components described above are not shown in the accompanying drawings, and since they are well-known to those skilled in the art, they will not be described in detail here. Example 2

[0036] See Figure 10 Based on Example 1, the following settings are also made: The upper half of the rotating plate 3 is provided with a through hole 16. When the lower half of the tube body 1 forms a closed space, water can still pass through the through hole 16 during closed sampling, so that the flow of water is not obstructed during closed sampling.

[0037] Working principle of the invention: When the driving component rotates the driving tube 2, preventing the second sampling tube 10 from touching the end of the arc-shaped slide 13, the first sampling tube 4 remains stationary relative to the rotating plate 3 due to its elastic connection with the rotating plate 3 and the absence of external force. At this time, the first sampling holes 5 on the rotating plate 3 are aligned with the second sampling holes 6 on the first sampling tube 4. Simultaneously, the second sampling tube 10 is offset from the third sampling hole 11 and the fourth sampling hole 12 on the lower side of the semi-circular plate 7. Water flows within the tube body 1, and water samples at different radial positions enter the first sampling tube 4 through the aligned first sampling holes 5 and second sampling holes 6, thus achieving sampling. Furthermore, by driving the driving component to rotate the rotating plate 3 to different positions, the water flow through the channel 9 of the rotating plate 3 within the tube body 1 changes, thereby altering the water flow velocity and enabling sampling of water samples at different flow velocities. When the driving component rotates the driving tube 2 until the rotating plate 3 blocks the tube body 1 (the two axes coincide), the rotating plate 3, baffle 8, semi-circular plate 7, and inner wall of the tube body 1 together form a closed water storage space, at which point the water flow is blocked within this closed space. During the rotation of the rotating plate 3 to this position, the end of the second sampling tube 10 slides within the arc-shaped slide 13 and touches the end of the arc-shaped slide 13, and tilts slightly after being squeezed. The tilting of the second sampling tube 10 causes the first sampling tube 4 to rotate relative to the rotating plate 3, causing the first sampling hole 5 and the second sampling hole 6 to be misaligned, preventing water from the non-closed space from entering the first sampling tube 4. At the same time, the tilting of the second sampling tube 10 aligns the third sampling hole 11 and the fourth sampling hole 12, and the water sample in the closed space enters the second sampling tube 10 through the aligned third sampling hole 11 and fourth sampling hole 12, completing the sampling of the closed space. When the driving component rotates the driving tube 2 until the second sampling tube 10 touches the other end of the arc-shaped slide 13, and the rotating plate 3 does not block the tube body 1 and the axes of the two are perpendicular, the water flow velocity in the tube body 1 reaches its maximum. At this time, because the second sampling tube 10 touches the end of the arc-shaped slide 13, it is pushed by an external force to rotate the first sampling tube 4, causing the first sampling hole 5 and the second sampling hole 6 to be misaligned, making it impossible to sample through the first sampling tube 4. At the same time, the third sampling hole 11 and the fourth sampling hole 12 are also misaligned, and the entire device is in a non-sampling state.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water sampling device for a heating system, comprising a pipe body (1) installed between heating pipelines, characterized in that: A drive tube (2) is provided through the tube body (1). A drive component is connected to the outside of the drive tube (2). A rotating plate (3) is fixedly connected to the inner end of the drive tube (2). A first sampling tube (4) is provided in the rotating plate (3) that can rotate relative to the rotating plate (3) and elastically reset. The upper end of the first sampling tube (4) passes through the drive tube (2). A plurality of first sampling holes (5) and second sampling holes (6) that can be aligned one-to-one are provided on the rotating plate (3) and the first sampling tube (4) respectively. The rotating plate (3) has a semi-circular plate (7) on one side, the tube body (1) has a baffle (8) on the inner wall, the semi-circular plate (7) has a channel (9) inside, the first sampling tube (4) is fixedly connected to and communicates with the second sampling tube (10), the second sampling tube (10) is located in the channel (9), and the second sampling tube (10) and the lower side of the semi-circular plate (7) have a third sampling hole (11) and a fourth sampling hole (12). The baffle (8) has an arc-shaped slide (13) on its arc-shaped edge. The end of the second sampling tube (10) is slidably connected to the arc-shaped slide (13). When the second sampling tube (10) touches the end of the arc-shaped slide (13), it can rotate the first sampling tube (4) so ​​that the first sampling hole (5) and the second sampling hole (6) are misaligned.

2. The water quality sampling device for a heating system as described in claim 1, characterized in that: The edge of the rotating plate (3) is fitted with a first sealing layer (14), which can fit against the inner wall of the tube body (1). The arc edge of the semi-circular plate (7) is provided with a second sealing layer (15), which can fit against the arc surface of the baffle (8).

3. The water quality sampling device for a heating system as described in claim 2, characterized in that: The first sealing layer (14) and the second sealing layer (15) are both rubber airbag structures and are interconnected.

4. The water quality sampling device for a heating system as described in claim 1, characterized in that: The upper half of the rotating plate (3) is provided with a through hole (16).

5. The water quality sampling device for a heating system as described in claim 1, characterized in that: The rotating plate (3) is provided with a circular groove that communicates with the driving tube (2) in the radial direction. The first sampling hole (5) is opened on the rotating plate (3) and communicates with the circular groove. The first sampling hole (5) is inserted into the circular groove. The first sampling tube (4) is connected to the driving tube (2) through an elastic element (17).

6. The water quality sampling device for a heating system as described in claim 5, characterized in that: The channel (9) is a rectangular channel, the second sampling tube (10) is a rectangular sampling tube, and the second sampling tube (10) can be tilted to the opposite sides of the channel (9).

7. The water quality sampling device for a heating system as described in claim 6, characterized in that: The circular groove is a threaded groove, the first sampling tube (4) is an externally threaded tube, and the driving tube (2) is an internally threaded tube; the first sampling tube (4) has an insertion port (18), and the end of the second sampling tube (10) is inserted into the insertion port (18); the lower end of the driving tube (2) has a slot (19), and the rotating plate (3) is engaged in the slot (19).

8. The water quality sampling device for a heating system as described in claim 1, characterized in that: The second sampling hole (6) and the second sampling tube (10) are located on opposite sides of the first sampling tube (4).

9. A water quality sampling device for a heating system as described in claim 1, characterized in that: The baffle (8) is fixedly welded to the inner wall of the pipe body (1); both ends of the pipe body (1) are fixedly connected with flanges (20) for connecting to the pipeline.

10. A water quality sampling device for a heating system as described in claim 1, characterized in that: The driving component includes a gear ring, a gear, and a motor; the gear ring is fixedly sleeved on the driving tube (2), the motor is fixedly connected to the outer surface of the tube body (1), the gear is fixedly connected to the output shaft of the motor, and the gear meshes with the gear ring.

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