Emptying and anti-freezing device for process water pipeline of desulfurization system

Abstract

The invention relates to the technical field of pipeline anti-freezing, in particular to a desulfurization system process water pipeline emptying and anti-freezing device which comprises a process water pipeline, an emptying mechanism is arranged on one side close to the process water pipeline, and the emptying mechanism comprises an air pump, an inflation vertical pipe, a connecting hose and an exhaust transverse pipe which are sequentially connected. A manual valve I and a manual valve II are respectively arranged on the exhaust transverse pipe, and a pressure gauge is arranged between the manual valve I and the manual valve II; hard straight pipes are arranged at the two ends of the connecting hose respectively, the two hard straight pipes are connected with the inflation vertical pipe and the exhaust transverse pipe through connecting assemblies respectively, rubber gaskets are arranged at the joints of the hard straight pipes and the inflation vertical pipe and the joints of the hard straight pipes and the exhaust transverse pipe respectively, and each connecting assembly comprises a hoop and a positioning ring. A positioning groove correspondingly matched with the positioning ring is formed in the inner wall of the hoop, the hoop is fixedly connected between the inflation vertical pipe and the hard straight pipe in a sleeved mode, and the positioning ring is connected into the positioning groove in a clamped mode. The pipeline is forcibly emptied through air pressure, and the problem of freezing in winter due to water accumulation in the pipeline is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline antifreezing, in particular to a desulfurization system process water pipeline emptying antifreezing device. Background Art

[0002] When the desulfurization system is shut down in winter, the water in the pipeline needs to be drained, otherwise the freezing point needs to be gradually checked and heated to thaw after freezing. In the prior art, in order to prevent the pipeline from freezing, the water inlet of the pipeline is usually closed after the winter shutdown, the drain port is opened, and the water is drained by gravity. The above method has the risk of incomplete drainage and easy freezing of pipelines in winter, which increases maintenance costs and safety hazards. In addition, previous pipeline connectors and valve designs often have poor sealing properties, which easily lead to gas leakage and affect system efficiency and safety. In response to the above problems, the device integrates efficient air pump emptying, precise pressure monitoring, and reliable sealing connection technology, especially the innovative ball valve design, which not only improves the efficiency and reliability of pipeline emptying, but also avoids the risk of misoperation through a sophisticated limit mechanism. It is suitable for ensuring the safe operation of the desulfurization system in severe cold environments. Summary of the invention

[0003] In order to solve the above technical problems, the present invention specifically adopts the following technical solutions.

[0004] A desulfurization system process water pipeline emptying antifreeze device is designed, comprising a process water pipeline, an emptying mechanism is arranged on one side close to the process water pipeline, the emptying mechanism comprises an air pump, an air charging vertical pipe, a connecting hose, and an exhaust cross pipe connected to the process water pipeline connected in sequence, a manual valve 1 and a manual valve 2 are arranged on the exhaust cross pipe close to the air charging vertical pipe and the process water pipeline, respectively, and a pressure gauge is arranged between the manual valve 1 and the manual valve 2;

[0005] The two ends of the connecting hose are respectively hard straight pipes, and the two hard straight pipes are respectively connected to the inflation vertical pipe and the exhaust cross pipe through connecting components, and rubber gaskets are provided at the connection between the hard straight pipe and the inflation vertical pipe and the exhaust cross pipe. The connecting component includes a clamp provided at the connection between the inflation vertical pipe and the hard straight pipe, and a positioning ring fixedly mounted on the hard straight pipe and the inflation vertical pipe respectively. A positioning groove corresponding to the positioning ring is opened on the inner wall of the clamp, and the clamp is tightly sleeved between the inflation vertical pipe and the hard straight pipe, and the positioning ring is clamped in the positioning groove.

[0006] Preferably, a connecting tube is sleeved on one end of the inflatable vertical tube close to the hard straight tube, and the other end of the connecting tube is inserted into the hard straight tube and fits tightly with the inner wall of the hard straight tube. The rubber gasket is sleeved on the connecting tube, and its two ends respectively fit with the openings of the hard straight tube and the inflatable vertical tube.

[0007] Preferably, a sleeve groove is provided in the hard straight tube near its opening, and a plurality of sealing rings are sleeved on the outer circumferential surface of the connecting tube, and the sealing rings are tightly fitted to the inner wall of the sleeve groove.

[0008] Preferably, the clamp includes two arc-shaped clamps and a clip arranged at one end of each arc-shaped clamp, the other ends of the two arc-shaped clamps are rotatably connected by a rotating shaft, the arc-shaped clamps are tightly attached to the outer walls of the inflatable vertical pipe and the hard straight pipe, and the two clips are fastened by bolts.

[0009] Preferably, the manual valve one and the manual valve two both include a ball valve body, a connecting ring is fixed inside the inlet and outlet ends of the ball valve body, a mounting tube is connected to the inner side of the connecting ring, a mounting ring is connected to the other end of the mounting tube, a sealing gasket is provided on the outer ring surface of the other end of the mounting ring, and the sealing gasket is sealed and connected to the inner wall of the exhaust cross pipe connected to the ball valve body.

[0010] Preferably, a valve core is provided inside the ball valve body, a valve stem is provided on the top of the valve core, and the top of the valve stem penetrates to the top of the ball valve body.

[0011] Preferably, a mounting seat is provided on the top of the ball valve body, the top of the mounting seat is connected to a connecting seat, a plug hole is opened on the top of the connecting seat, a rotating rod connected to the valve stem is penetrated on the top of the connecting seat, a turntable is fixedly mounted on the rotating rod, an insertion rod matching the plug hole is penetrated on the turntable, and a pull handle is provided on the top of the insertion rod.

[0012] Preferably, a control handle is fixedly mounted on the rotating rod, and a limiting pressure cap is provided on the top of the rotating rod.

[0013] Preferably, flanges are provided on the outside of the inlet and outlet ends of the ball valve body, and the flanges are used to be connected to the butted exhaust cross pipe.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention implements mandatory and efficient air pressure emptying of the pipeline, effectively avoiding the winter freezing problem caused by water accumulation in the pipeline, and improving the operating safety and reliability of the entire desulfurization system.

[0016] 2. The quick connection assembly used in the present invention makes the connection and disassembly of the pipeline easier and faster. The connecting pipe is fixedly sleeved at one end where the inflation vertical pipe and the exhaust horizontal pipe are connected to the hard straight pipe, and a sealing ring is sleeved on the connecting pipe. The sealing ring is tightly plugged into the sleeve groove on the hard straight pipe, and a rubber sealing gasket is added to make the hard straight pipe and the inflation vertical pipe tightly docked and fit, thereby improving the sealing of the connection between the two. The clamp makes the connection between the two tighter, and once again improves the tightness of the connection. The overall structure is simple, easy to disassemble and assemble, and reduces the difficulty and time cost of maintenance. The double sealing design and limit protection mechanism of the ball valve reduce the risks that may be caused by misoperation.

[0017] 3. The multiple sealing design of the pipeline of the present invention effectively prevents gas leakage, improves the working efficiency of the system, and also reduces energy waste, which has a positive impact on environmental protection and corporate economic benefits.

[0018] 4. The device is suitable for desulfurization systems of various scales and environmental conditions, especially low-temperature operating environments, and shows good versatility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the connected components;

[0021] Figure 3 It is a schematic diagram of the structure of the inflatable vertical pipe;

[0022] Figure 4 It is a structural schematic diagram of the connection between the inflatable vertical pipe and the hard straight pipe;

[0023] Figure 5 It is a structural diagram of the ball valve body;

[0024] Figure 6 It is a schematic diagram of the internal structure of the ball valve body;

[0025] Figure 7 is a schematic diagram of the side view structure of the installation pipe;

[0026] Figure 8 yes Figure 5 A is an enlarged structural diagram;

[0027] Fig. 9 It is a schematic diagram of the structure of the installation pipe;

[0028] The numbers in the figure are: 1 air pump, 2 inflation vertical pipe, 3 exhaust horizontal pipe, 4 connecting assembly, 5 hard straight pipe, 6 connecting hose, 7 manual valve one, 8 pressure gauge, 9 manual valve two, 90 valve core, 91 valve stem, 92 flange, 93 mounting pipe, 94 mounting ring, 95 control handle, 96 limit pressure cap, 97 sealing gasket, 98 rotating rod, 99 rotating plate, 901 mounting seat, 902 pull handle, 903 plug rod, 904 socket, 905 connecting seat, 906 connecting ring, 10 process water pipeline, 11 positioning ring, 12 rubber gasket, 13 clip, 14 positioning groove, 15 connecting pipe, 16 sealing ring, 17 sleeve groove. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example 1

[0031] A desulfurization system process water pipeline emptying antifreeze device, such as Figures 1 to 9 As shown, it includes a process water pipeline 10, and an emptying mechanism is provided on the side close to the process water pipeline 10. The emptying mechanism includes an air pump 1, an inflation vertical pipe 2, a connecting hose 6, and an exhaust cross pipe 3 connected to the process water pipeline 10, which are connected in sequence. A manual valve 1 7 and a manual valve 2 9 are respectively provided on the exhaust cross pipe 3 near the inflation vertical pipe 2 and the process water pipeline 10, and a pressure gauge 8 is provided between the manual valve 1 7 and the manual valve 2 9; the pressure gauge 8 can be used to measure the inflation pressure and the pressure of the process water pipeline 10, open the manual valve 1 7, close the manual valve 2 9, and the pressure gauge 8 can be used to measure the inflation pressure of the air pump 1 to achieve the purpose of emptying the process pipeline. An air pressure of about 0.6 MPA is required to force the entire pipeline to be emptied to avoid freezing of some residual water in the pipeline; close the manual valve 1 7, open the manual valve 2 9, and the pressure gauge 8 can be used to measure the water pressure in the process water pipeline 10.

[0032] The two ends of the connecting hose 6 are respectively hard straight tubes 5, and the two hard straight tubes 5 are respectively connected to the inflatable vertical tube 2 and the exhaust cross tube 3 through the connecting assembly 4, and a rubber gasket 12 is provided at the connection between the hard straight tube 5 and the inflatable vertical tube 2 and the exhaust cross tube 3. The connecting assembly 4 includes a clamp provided at the connection between the inflatable vertical tube 2 and the hard straight tube 5, and a positioning ring 11 fixedly sleeved on the hard straight tube 5 and the inflatable vertical tube 2, respectively, and a positioning groove 14 corresponding to the positioning ring 11 is provided on the inner wall of the clamp. The clamp is tightly sleeved between the inflatable vertical tube 2 and the hard straight tube 5, and the positioning ring 11 is clamped in the positioning groove 14. The clamp includes two arc-shaped clamps and a clip 13 provided at one end of each arc-shaped clamp. The other ends of the two arc-shaped clamps are rotatably connected through a rotating shaft, and the arc-shaped clamps are tightly attached to the outer walls of the inflatable vertical tube 2 and the hard straight tube 5. The two clips 13 are fastened and connected by bolts.

[0033] A connecting pipe 15 is sleeved on one end of the inflation vertical pipe 2 near the hard straight pipe 5, and the other end of the connecting pipe 15 is inserted into the hard straight pipe 5 and fits tightly with the inner wall of the hard straight pipe 5. The rubber gasket 12 is sleeved on the connecting pipe 15, and its two ends fit with the openings of the hard straight pipe 5 and the inflation vertical pipe 2 respectively. A sleeve groove 17 is provided in the hard straight pipe 5 near its opening, and a plurality of sealing rings 16 are sleeved on the outer circumference of the connecting pipe 15, and the sealing rings 16 fit tightly with the inner wall of the sleeve groove 17. One end of the exhaust cross pipe 3 is connected to the hard straight pipe 5 in the same way.

[0034] The above-mentioned inflatable vertical pipe 2 and exhaust cross pipe 3 are respectively connected to the connecting hose 6, relying on the plugging of the inflatable vertical pipe 2 and the hard straight pipe 5, so as to facilitate the quick connection of the inflatable vertical pipe 2 and the hard straight pipe 5, and then the sealing ring 16 is sleeved on the connecting pipe 15, and the sealing ring 16 is closely fitted with the inner wall of the sleeve groove 17, which is conducive to improving the close combination between the connecting pipe 15 and the hard straight pipe 5, and then the rubber gasket 12 is closely fitted with the hard straight pipe 5 and the inflatable vertical pipe 2, which can improve the hard straight pipe 5 and The inflation vertical pipe 2 is tightly docked, and then the clamp and two positioning rings 11 are clamped together, so that the clamp tightly combines the inflation vertical pipe 2 and the hard straight pipe 5, and once again improves the tightness of the connection to prevent gas leakage. The overall structure is simple, and when disassembling, it is only necessary to open the clamp and directly unplug the hard straight pipe 5 at both ends of the connecting hose 6 from the inflation vertical pipe 2 and the exhaust cross pipe 3; when installing, the hard straight pipe 5 can be directly put on the connecting pipe 15 of the inflation vertical pipe 2, which is convenient for disassembly.

[0035] Manual valve 1 7 and manual valve 2 9 both include a ball valve body, a connecting ring 906 is fixed inside the inlet and outlet ends of the ball valve body, a mounting tube 93 is connected to the inner side of the connecting ring 906, a mounting ring 94 is connected to the other end of the mounting tube 93, a sealing gasket 97 is provided on the outer ring surface of the other end of the mounting ring 94, and the sealing gasket 97 is sealed and connected to the inner wall of the exhaust cross pipe 3 connected to the ball valve body. A valve core 90 is provided inside the ball valve body, a valve stem 91 is provided on the top of the valve core 90, and the top of the valve stem 91 penetrates to the top of the ball valve body. A flange 92 is provided on the outside of the inlet and outlet ends of the ball valve body, and the flange 92 is used to connect to the exhaust cross pipe 3 connected to the butt.

[0036] The ball valve body is one-piece and can be integrally formed by a mold, so that the ball valve has a stronger sealing performance when in use. When the ball valve body is in use, the mounting tube 93 is inserted into the pipeline of the exhaust cross pipe 3, so that the gas passing through the ball valve body can be discharged into the exhaust cross pipe 3 through the mounting tube 93. Since the mounting tube 93 is connected to the interior of the ball valve body through the outer connecting ring 906, the gas passing through the interior of the integrated ball valve body can finally enter the mounting tube 93. One end of the mounting tube 93 is sealed with the inner wall of the exhaust cross pipe 3 through the sealing gasket 97 on the mounting ring 94, so that the gas discharged from the mounting tube 93 to the exhaust cross pipe 3 will not leak. The ball valve body is sealed and connected to the exhaust cross pipe 3 through the flange 92, and the interior is sealed and connected through the connecting ring 906 at one end of the mounting tube 93, which plays a double sealing role, can effectively prevent gas leakage, and the ball valve body is switched by rotating the internal valve core 90.

[0037] A mounting seat 901 is provided at the top of the ball valve body, and a connecting seat 905 is connected to the top of the mounting seat 901. A plug hole is opened at the top of the connecting seat 905. A rotating rod 98 connected to the valve stem 91 is penetrated at the top of the connecting seat 905. A turntable 99 is fixedly mounted on the rotating rod 98. An insert rod 903 matching the plug hole is penetrated on the turntable 99, and a pull handle 902 is provided at the top of the insert rod 903.

[0038] A control handle 95 is fixedly mounted on the rotating rod 98 , and a limiting pressure cap 96 is provided on the top of the rotating rod 98 .

[0039] When the ball valve body is in use, the control handle 95 is rotated, the rotating rod 98 is rotated, and then the valve stem 91 is used to drive the valve core 90 to rotate, so as to realize the switch control of the ball valve body. In order to avoid accidentally touching the control handle 95 to open the ball valve body, when the ball valve body is closed, the plug rod 903 corresponds to the socket 904, and the plug rod 903 is inserted into the socket 904 to fix the turntable 99, thereby limiting the control handle 95, so that the control handle 95 will not cause the ball valve to open due to accidental touching. If the control handle 95 needs to be rotated, the pull handle 902 can be used to pull the plug rod 903 out of the socket 904.

[0040] When the present invention is used, first, open manual valve one 7 and close manual valve two 9, start the air pump 1, and the compressed gas enters the exhaust cross pipe 3 through the inflation vertical pipe 2 and the connecting hose 6. At this time, the pressure gauge 8 is used to monitor the inflation pressure of the air pump 1 to ensure that it reaches about 0.6MPa, which is sufficient to implement forced emptying of the entire process water pipeline 10 to eliminate residual moisture in the pipeline and prevent freezing in winter. The gas pushes the water in the pipeline to be discharged through the pipeline system to achieve dry emptying of the pipeline. After the emptying is completed, close the manual valve one 7, open the manual valve two 9, and the pressure gauge 8 conversion function is used to monitor the pressure state of the process water pipeline 10 for daily maintenance and monitoring.

[0041] The connection between the gas-filled vertical pipe 2 and the hard straight pipe 5 relies on the joint action of the clamp, the positioning ring 11, the rubber gasket 12 and the sealing ring 16 to ensure that there is no leakage during the gas transmission process. The hard straight pipe 5 is tightly fitted with the connecting pipe 15 through the sleeve groove 17 and the sealing ring 16. At the same time, the rubber gasket 12 is located between the gas-filled vertical pipe 2 and the hard straight pipe 5. With the stable clamping of the clamp and the positioning ring 11, multiple seals are formed to ensure the tightness of gas transmission. After the process water pipeline 10 is emptied, the connecting hose 6 can be removed.

[0042] Manual valve 1 7 and manual valve 2 9 (both are ball valves) control gas flow by rotating the valve core 90 to achieve precise switching. The control handle 95 is easy to operate and is connected to the valve core 90 through the rotating rod 98. The valve can be opened and closed by rotating the pull handle 902. In order to prevent misoperation, a limit mechanism of the plug rod 903 and the socket 904 is designed. When the ball valve is closed and needs to be locked, the plug rod 903 is inserted into the socket 904 to lock the turntable 99 to ensure that the valve state remains unchanged. If necessary, the limit can be released by pulling the pull handle 902, and the valve can be operated again.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A desulfurization system process water pipeline emptying antifreeze device, characterized in that: It includes a process water pipeline, and an emptying mechanism is provided on one side close to the process water pipeline, the emptying mechanism includes an air pump, an air charging vertical pipe, a connecting hose, and an exhaust cross pipe connected to the process water pipeline, which are connected in sequence, and a manual valve 1 and a manual valve 2 are respectively provided on the exhaust cross pipe near the air charging vertical pipe and the process water pipeline, and a pressure gauge is provided between the manual valve 1 and the manual valve 2; The two ends of the connecting hose are respectively hard straight pipes, and the two hard straight pipes are respectively connected to the inflation vertical pipe and the exhaust cross pipe through connecting components, and rubber gaskets are provided at the connection between the hard straight pipe and the inflation vertical pipe and the exhaust cross pipe. The connecting component includes a clamp provided at the connection between the inflation vertical pipe and the hard straight pipe, and a positioning ring fixedly mounted on the hard straight pipe and the inflation vertical pipe respectively. A positioning groove corresponding to the positioning ring is opened on the inner wall of the clamp, and the clamp is tightly sleeved between the inflation vertical pipe and the hard straight pipe, and the positioning ring is clamped in the positioning groove.

2. The desulfurization system process water pipeline emptying antifreeze device according to claim 1, characterized in that: A connecting pipe is sleeved on one end of the inflatable vertical pipe close to the hard straight pipe, and the other end of the connecting pipe is inserted into the hard straight pipe and fits tightly with the inner wall of the hard straight pipe. The rubber gasket is sleeved on the connecting pipe, and its two ends are respectively fitted with the openings of the hard straight pipe and the inflatable vertical pipe.

3. The desulfurization system process water pipeline emptying antifreeze device according to claim 2, characterized in that: A sleeve groove is provided in the hard straight pipe near its opening, and a plurality of sealing rings are sleeved on the outer peripheral surface of the connecting pipe, and the sealing rings are tightly fitted with the inner wall of the sleeve groove.

4. The desulfurization system process water pipeline emptying antifreeze device according to claim 1, characterized in that: The clamp includes two arc-shaped clamps and a clip arranged at one end of each arc-shaped clamp. The other ends of the two arc-shaped clamps are rotatably connected by a rotating shaft. The arc-shaped clamps are tightly attached to the outer walls of the inflatable vertical pipe and the hard straight pipe, and the two clips are fastened by bolts.

5. The desulfurization system process water pipeline emptying antifreeze device according to claim 1, characterized in that: The manual valve 1 and the manual valve 2 both include a ball valve body, a connecting ring is fixed inside the inlet and outlet ends of the ball valve body, a mounting tube is connected to the inner side of the connecting ring, a mounting ring is connected to the other end of the mounting tube, a sealing gasket is provided on the outer ring surface of the other end of the mounting ring, and the sealing gasket is sealed and connected to the inner wall of the exhaust cross pipe connected to the ball valve body.

6. The desulfurization system process water pipeline emptying antifreeze device according to claim 2, characterized in that: A valve core is arranged inside the ball valve body, a valve stem is arranged on the top of the valve core, and the top of the valve stem penetrates to the top of the ball valve body.

7. The desulfurization system process water pipeline emptying antifreeze device according to claim 2, characterized in that: A mounting seat is provided on the top of the ball valve body, a connecting seat is connected to the top of the mounting seat, a plug hole is opened on the top of the connecting seat, a rotating rod connected to the valve stem is penetrated through the top of the connecting seat, a turntable is fixedly mounted on the rotating rod, an insert rod matching the plug hole is penetrated on the turntable, and a pull handle is provided on the top of the insert rod.

8. The desulfurization system process water pipeline emptying antifreeze device according to claim 2, characterized in that: A control handle is fixedly sleeved on the rotating rod, and a limiting pressure cap is arranged on the top of the rotating rod.

9. The desulfurization system process water pipeline emptying antifreeze device according to claim 2, characterized in that: A flange is provided on the outer side of the inlet and outlet ends of the ball valve body, and the flange is used to be connected to the butted exhaust cross pipe.

Images