Plug-and-play dosing joint without cutting off water

Abstract

The utility model discloses a plug-and-play dosing joint without cutting off water, which comprises a connecting pipe arranged on a water supply pipeline, the end part of the connecting pipe is provided with a valve body, the valve body is configured to be capable of opening or closing the connecting pipe, the inside of the valve body is also detachably jointed with a dosing pipe, and the dosing pipe extends into the water supply pipeline. The dosing pipe extends into the water supply pipeline for dosing, so that when the high-concentration chlorine-containing medicament is released, the high-concentration chlorine-containing medicament is firstly mixed with a large amount of high-flow-speed tap water, the chloride ion concentration is instantly and greatly reduced, and the problem of corrosion of the metal pipe wall of the water supply pipeline is solved. And when the chemical feeding pipe does not feed chemicals for a long time, the chemical feeding pipe can be pulled out of the connecting pipe, then the valve body is closed, and the chemical feeding pipeline can be maintained at the moment, so that the water supply pipeline can be used without cutting off water.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline dosing joints, in particular to a non-water-stopping plug-and-play dosing joint. Background Art

[0002] With the continuous development of cities, the scale of water supply networks continues to expand, especially in super-large cities, where the transmission and distribution distance is long and the structure is intricate. Some areas are prone to slow flow, long water age and uneven spatial distribution of residual chlorine. At the same time, affected by the season, the residual chlorine at the end of the local network decays quickly, leading to an increase in the risk of terminal microorganisms. The water supply network supplementary chlorination process is considered to be an optimized disinfection method, which can make the disinfection method of the entire water supply system more scientific and reasonable while ensuring water quality safety.

[0003] Figure 1 The online dosing device in the prior art is shown, which includes a dosing pipe 4 connected to a water supply pipe 1, wherein the water supply pipe 1 has a three-way structure, and the dosing pipe 4 is connected to the three-way structure through a dosing joint, and the dosing joint is a ball valve 15 and a check valve 16 connected in sequence. However, since the added disinfectant contains a high concentration of chloride ions, it corrodes the metal material severely, causing serious corrosion to the three-way structure connected to the check valve 16. After a short period of time, the water supply pipe 1 near the check valve 16 will corrode and leak. In addition, the water supply pipe generally has a high pressure, and a pipe burst may occur in severe cases.

[0004] In addition, since online chlorine replenishment will be added irregularly according to the residual chlorine content in the water supply network, the valves are opened frequently and are easily damaged and replaced. The water supply network has the characteristics of large water volume and high pressure. When the dosing pipe needs maintenance, it is often necessary to stop the water supply for replacement. However, long-distance and large-diameter water mains generally cannot be easily stopped, which brings inconvenience to maintenance. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a plug-and-play dosing joint that does not shut off water.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A non-stop water plug-and-play dosing joint comprises a connecting pipe arranged on a water supply pipe, a valve body is arranged at the end of the connecting pipe, the valve body is configured to open or close the connecting pipe, a dosing pipe is detachably connected to the valve body, and the dosing pipe extends into the water supply pipe.

[0008] The valve body comprises a ball valve.

[0009] The extending end of the dosing pipe is provided with an inclined surface, and the inclined surface is arranged on the side facing away from the water flow direction in the water supply pipe.

[0010] The connecting pipe is a DN50 pipe, and the dosing pipe is a DN25 pipe.

[0011] The valve body is connected to the connecting pipe via a flange.

[0012] A first flange is arranged on the side wall of the dosing pipe, a second flange is arranged on the valve body, and the first flange is connected to the second flange.

[0013] The inclination angle of the inclined surface is 30°.

[0014] A mounting seat is provided in the connecting pipe, a connecting block is elastically provided on the mounting seat, the mounting seat cooperates with the connecting block to block the connecting pipe, a flow channel is provided in the connecting block, the flow channel has a first end connected to the end face of the connecting block, and a second end connected to the side wall of the connecting block, the second end is arranged to face away from the water flow direction in the water supply pipe;

[0015] When the dosing tube is inserted into the connecting tube, the connecting block is engaged with the dosing tube.

[0016] The flow channel further includes a vertical section and an inclined section connected between the first end and the second end, and the inclined section is inclined toward a side away from the first end.

[0017] The beneficial effect of the utility model is that the dosing tube is inserted into the water supply pipe for dosing, so when the high-concentration chlorine-containing agent is released, it is first mixed with a large amount of high-flow tap water, and the chloride ion concentration is instantly greatly reduced, solving the problem of corrosion of the metal pipe wall of the water supply pipe. And when the dosing tube is not dosed for a long time, the dosing tube can be pulled out of the connecting pipe, and then the valve body is closed. At this time, the dosing pipeline can also be maintained, so that the water supply pipe can be used without water interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an existing dosing joint;

[0019] Figure 2 It is a structural schematic diagram of an embodiment;

[0020] Figure 3 A schematic diagram of the structure of the connection block.

[0021] Figure numerals: 1. water supply pipe; 2. connecting pipe; 3. valve body; 4. dosing pipe; 5. inclined surface; 6. first flange; 7. second flange; 8. mounting seat; 9. connecting block; 10. flow channel; 11. first end; 12. second end; 13. vertical section; 14. inclined section; 15. ball valve; 16. check valve. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 A plug-and-play dosing joint without water shutoff includes a connecting pipe 2 arranged on a water supply pipe 1, a flange is arranged at the end of the connecting pipe 2, and a valve body 3 is connected to the end of the connecting pipe 2 through the flange. The valve body 3 is configured to open or close the connecting pipe 2, and is also configured to allow the dosing pipe 4 to be engaged when the connecting pipe 2 is open, so that the insertion end of the dosing pipe 4 can directly pass through the connecting pipe 2 and extend into the water supply pipe 1. It can be understood that at this time, the agent in the dosing pipe 4 can be directly put into the water supply pipe 1, and it is not easy to cause corrosion to the connecting pipe 2.

[0024] For example, the valve body 3 is a ball valve, and the side of the valve body 3 facing away from the connecting pipe 2 also has a second flange 7, and the side wall of the dosing pipe 4 has a first flange 6, and the connection stability of the dosing pipe 4 and the connecting pipe 2 is achieved by the engagement of the first flange 6 and the second flange 7. At the same time, the first flange 6 and the second flange 7 can also limit the relative position of the dosing pipe 4 extending into the water supply pipe 1, for example, the extending end of the dosing pipe 4 can be preferably arranged at the center of the water supply pipe 1.

[0025] In order to ensure the structural strength of the joint, it is preferred that the connecting pipe 2 is a DN50 pipe and the dosing pipe 4 is a DN25 pipe.

[0026] For example, the insertion end of the dosing tube 4 is provided with an inclined surface 5, and the inclined surface 5 is arranged on the side facing away from the water flow direction in the water supply pipe 1. It can be understood that the structure of the inclined surface 5 can facilitate the release of the agent from the dosing tube 4, and at the same time, the phenomenon of water backflow is not easy to occur in the dosing tube 4, and the reliability of the joint is improved. Preferably, the inclination angle of the inclined surface 5 can be 30° or 45°.

[0027] See also Figure 3 In another embodiment, a mounting seat 8 is provided in the connecting pipe 2, and the mounting seat 8 is elastically connected to a connecting block 9 through an elastic member such as a spring. A flow channel 10 is provided in the connecting block 9, and the flow channel 10 has a first end 11 connected to the end surface of the connecting block 9, and a second end 12 connected to the side wall of the connecting block 9. The second end 12 is configured to be arranged on the side facing away from the water flow direction in the water supply pipe 1.

[0028] When the connecting block 9 is engaged in the mounting seat 8, the second end 12 is blocked by the mounting seat 8. At this time, the mounting seat 8 and the connecting block 9 cooperate to block the connecting pipe 2, thereby preventing water from rushing into the connecting pipe 2 and causing pressure on the valve body 3. That is, the service life of the valve body 3 can be increased by the mounting seat 8 and the connecting block 9.

[0029] When the dosing tube 4 is inserted into the connecting tube 2, the connecting block 9 will engage with the dosing tube 4. As the dosing tube 4 is continuously inserted, the connecting block 9 will gradually come out of the mounting seat 8 until the flow channel 10 connects the dosing tube 4 and the water supply pipe 1, and then the medicine in the dosing tube 4 can be released into the water supply pipe 1.

[0030] For example, the flow channel 10 may include a vertical section 13 and an inclined section 14 connected between the first end 11 and the second end 12. The inclined section 14 is inclined toward the side away from the first end 11, so that the medicine in the dosing tube 4 is more easily guided into the water supply pipe 1 by the flow channel 10 under the action of gravity.

[0031] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A plug-and-play dosing joint without water cut-off, comprising a connecting pipe (2) arranged on a water supply pipe (1), characterized in that: A valve body (3) is provided at the end of the connecting pipe (2), and the valve body (3) is configured to open or close the connecting pipe (2). A dosing pipe (4) is detachably connected to the valve body (3), and the dosing pipe (4) extends into the water supply pipe (1); A mounting seat (8) is arranged in the connecting pipe (2), a connecting block (9) is elastically arranged on the mounting seat (8), the mounting seat (8) cooperates with the connecting block (9) to seal the connecting pipe (2), a flow channel (10) is opened in the connecting block (9), the flow channel (10) has a first end (11) connected to the end surface of the connecting block (9), and a second end (12) connected to the side wall of the connecting block (9), the second end (12) is arranged on the side facing away from the water flow direction in the water supply pipe (1); When the dosing tube (4) is inserted into the connecting tube (2), the connecting block (9) is engaged with the dosing tube (4).

2. The plug-and-play dosing joint without water stopping according to claim 1 is characterized by: The valve body (3) comprises a ball valve.

3. The plug-and-play dosing joint without water shutoff according to claim 1 is characterized by: The extending end of the dosing pipe (4) is provided with an inclined surface (5), and the inclined surface (5) is arranged on the side facing away from the water flow direction in the water supply pipe (1).

4. The plug-and-play dosing joint without water stopping according to claim 1 is characterized by: The connecting pipe (2) is a DN50 pipe, and the dosing pipe (4) is a DN25 pipe.

5. The plug-and-play dosing joint without water stopping according to claim 1 is characterized by: The valve body (3) is connected to the connecting pipe (2) via a flange.

6. The plug-and-play dosing joint without water shutoff according to claim 1 is characterized by: A first flange (6) is arranged on the side wall of the dosing pipe (4), a second flange (7) is arranged on the valve body (3), and the first flange (6) is connected to the second flange (7).

7. The plug-and-play dosing joint without water stopping according to claim 3 is characterized by: The inclination angle of the inclined surface (5) is 30°.

8. The plug-and-play dosing joint without water shutoff according to claim 1 is characterized by: The flow channel (10) further comprises a vertical section (13) and an inclined section (14) connected between the first end (11) and the second end (12); the inclined section (14) is inclined toward a side away from the first end (11).

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