Liquid collecting device for exhaust pipe

Abstract

The utility model discloses a liquid collecting device for an exhaust pipe. The liquid collecting device comprises a liquid collecting piece, a first liquid discharging pipe, a trap and a liquid storage tank. The liquid collecting piece is provided with a first end and a second end, the opening area of the first end is larger than that of the second end, and the first end communicates with the bottom of the exhaust pipe. And one end of the first liquid discharge pipe is communicated with the second end of the liquid collection piece. One end of the trap communicates with the end, away from the second end, of the first liquid discharging pipe. The liquid storage tank communicates with the end, away from the first liquid discharge pipe, of the trap. According to the liquid collecting device for the exhaust pipe, condensate accumulated in the exhaust pipe can be effectively removed, and safe operation of a system is ensured. The utility model is applied to the technical field of industrial liquid drainage.

Description

Technical Field

[0001] The present application relates to the technical field of industrial liquid drainage, and in particular to a liquid collecting device for an exhaust pipe. Background Art

[0002] In industrial production, especially in electronic factories, the operation of electronic process equipment will generate waste gas, which generally includes acid and alkali waste gas, organic waste gas, general thermal waste gas, etc. The waste gas is exhausted to the outdoor waste gas treatment equipment through the exhaust pipe and fan, and then discharged into the atmosphere after being treated by the waste gas treatment equipment.

[0003] If the exhaust gas encounters temperature changes during the exhaust pipe discharge process, condensate will be generated. When the fan stops running, the condensate will accumulate in the air duct. If the accumulated condensate is not removed in time and accumulates too much in the exhaust duct, when the exhaust fan is restarted, the accumulated condensate will flow to the scrubber along with the exhaust air. The condensate will flow into the static pressure sensor of the air duct at the inlet of the scrubber, affecting the performance of the sensor. In addition, if the condensate is not removed and accumulates in the exhaust duct for a long time, there will be a risk of leakage, and the condensate of some process exhaust is toxic and can easily cause poisoning incidents. Utility Model Content

[0004] The present application aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present application provides a liquid collecting device for an exhaust pipe, which can effectively remove the condensate accumulated in the exhaust pipe to ensure the safe operation of the system.

[0005] According to an embodiment of the present application, a liquid collecting device for an exhaust duct includes: a liquid collecting piece, the liquid collecting piece having a first end and a second end, the opening area of ​​the first end being larger than the opening area of ​​the second end, the first end being connected to the bottom of the exhaust duct; a first drain pipe, one end of the first drain pipe being connected to the second end of the liquid collecting piece; a trap, one end of the trap being connected to one end of the first drain pipe away from the second end; and a liquid storage tank, the liquid storage tank being connected to one end of the trap away from the first drain pipe.

[0006] Based on the above technical scheme, the embodiments of the present application have at least the following beneficial effects: the opening area of ​​the first end of the liquid collecting piece is larger than the opening area of ​​the second end, and the first end of the liquid collecting piece is connected to the bottom of the exhaust pipe, so that the condensate in the exhaust pipe can quickly flow into the liquid collecting piece and be discharged into the liquid storage tank through the first drain pipe, thereby preventing the condensate from accumulating in the exhaust pipe; setting a water trap can not only prevent residual gas in the drainage system from entering the room and improve the safety of the system, but also prevent the condensate in the drainage pipe from being sucked back into the exhaust pipe.

[0007] According to the liquid collecting device for an exhaust duct according to an embodiment of the present application, the first liquid drain pipe includes a first part and a second part that are connected, the first part extends downward in a vertical direction, the second part extends in a horizontal direction, an end of the first part away from the second part is connected to the second end of the liquid collecting piece, and an end of the second part away from the first part is bent upward to be connected to one end of the water trap.

[0008] According to the liquid collecting device for an exhaust pipe according to an embodiment of the present application, the water trap includes a third part, a fourth part and a fifth part which are connected in sequence, the third part extends upward in a vertical direction, the fourth part extends in a horizontal direction, and the fifth part extends downward in a vertical direction, an end of the third part away from the fourth part is connected to an end of the first drain pipe away from the second end, and an end of the fifth part away from the fourth part is connected to the liquid storage tank.

[0009] According to the liquid collecting device for an exhaust duct according to an embodiment of the present application, the height of the water trap is greater than or equal to 50 mm.

[0010] According to the liquid collecting device for an exhaust pipe according to an embodiment of the present application, an observation window is provided on a side surface of the water trap and / or a side surface of the liquid storage tank.

[0011] According to the liquid collecting device for the exhaust duct according to the embodiment of the present application, it also includes a one-way valve, which has a third end and a fourth end. The third end is connected to an end of the water trap away from the first drain pipe, and the fourth end is connected to the liquid storage tank, so that the one-way valve can open and close the passage between the water trap and the liquid storage tank.

[0012] According to the liquid collecting device for the exhaust duct according to the embodiment of the present application, the one-way valve includes a one-way valve body, a float, a pressure block, a spring and a piston, a cavity is opened in the one-way valve body, the cavity is connected with the third end and the fourth end respectively, the float, the pressure block, the spring and the piston are all arranged in the cavity, the float is connected with the pressure block, the pressure block is connected with the piston through the spring, and the piston is used to block one end of the cavity connected with the fourth end.

[0013] According to the liquid collecting device for the exhaust pipe according to the embodiment of the present application, it also includes a stop valve. The liquid storage tank is provided with a liquid discharge port. The stop valve is connected to the liquid discharge port to open and close the liquid discharge port.

[0014] According to the liquid collecting device for an exhaust duct according to an embodiment of the present application, the first end of the liquid collecting piece is welded or hot-melt connected to the bottom of the exhaust duct, and the second end of the liquid collecting piece is threadedly connected or welded to the first exhaust duct.

[0015] According to the liquid collecting device for an exhaust duct according to an embodiment of the present application, the opening diameter of the first end of the liquid collecting piece is greater than or equal to 100 mm.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic structural diagram of a liquid collecting device for an exhaust pipe in an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the funnel in the embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the connection between the first liquid discharge pipe and the water trap in the embodiment of the present application;

[0021] Figure 4 This is another structural schematic diagram of the connection between the first liquid discharge pipe and the water trap in the embodiment of the present application;

[0022] Figure 5 Schematic diagram of the structure of the one-way valve in the embodiment of the present application.

[0023] Figure numerals: exhaust pipe 100; funnel 200, funnel body 210, first end 211, funnel neck 220, second end 221; first drain pipe 310, first part 311, second part 312, second drain pipe 320, third drain pipe 330; trap 400, third part 410, fourth part 420, fifth part 430; one-way valve 500, third end 510, fourth end 520, one-way valve body 530, cavity 531, float 540, pressure block 550, spring 560, piston 570; liquid storage tank 600, liquid inlet 610, drain port 620, stop valve 630; observation window 700. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of this application, unless otherwise clearly defined, words such as setting and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in this application based on the specific content of the technical solution.

[0028] In the embodiment of the present application, the positive direction of the X-axis in the drawings is taken as the top, and the negative direction of the X-axis is taken as the bottom.

[0029] See also Figure 1 The embodiment of the present application provides a liquid collecting device for an exhaust pipe, which can effectively remove the condensate accumulated in the exhaust pipe 100 to ensure the safe operation of the system. The liquid collecting device for the exhaust pipe includes a liquid collecting member, a first liquid drain pipe 310, a water trap 400 and a liquid storage tank 600.

[0030] See also Figure 1 and Figure 2 The liquid collecting member has a first end 211 and a second end 221. The opening area of ​​the first end 211 is larger than the opening area of ​​the second end 221. The first end 211 of the liquid collecting member is connected to the bottom of the exhaust pipe 100, and the second end 221 of the liquid collecting member is connected to one end of the first liquid drain pipe 310, so that the condensate in the exhaust pipe 100 can be discharged through the liquid collecting member. One end of the water trap 400 is connected to the end of the first liquid drain pipe 310 away from the second end 221, and the end of the water trap 400 away from the first liquid drain pipe 310 is connected to the liquid storage tank 600. The exhaust pipe 100 is an industrial exhaust pipe 100.

[0031] In some embodiments, in order to ensure the discharge effect of the condensate in the exhaust duct 100 , the first end 211 of the liquid collecting member is connected to the bottom of the exhaust duct 100 .

[0032] In some embodiments, the first end 211 of the liquid collecting piece is welded or hot-melt connected to the bottom of the exhaust pipe 100 , and the second end 221 of the liquid collecting piece is threadedly connected or welded to the first exhaust pipe 310 .

[0033] In some embodiments, the material of the liquid collecting member is the same as that of the exhaust pipe 100. For example, the exhaust pipe 100 and the liquid collecting member are both made of stainless steel, and the first end 211 of the liquid collecting member and the exhaust pipe 100 are welded together by argon arc welding; for another example, the exhaust pipe 100 and the liquid collecting member are both made of polypropylene (PP), and the first end 211 of the liquid collecting member and the exhaust pipe 100 are connected together by hot melting.

[0034] It is conceivable that the opening diameter of the second end 221 of the liquid collecting member is equal to the diameter of the first liquid drain pipe 310, so that the second end 221 of the liquid collecting member can be sealed and connected with the first liquid drain pipe 310. When the second end 221 of the liquid collecting member is connected with the first liquid drain pipe 310 through a threaded connection, the second end 221 of the liquid collecting member is provided with an external thread, and the upper end of the first liquid drain pipe 310 is provided with an internal thread to cooperate with the second end 221 of the liquid collecting member. Of course, the second end 221 of the liquid collecting member can also be provided with an internal thread, and the upper end of the first liquid drain pipe 310 can be provided with an external thread.

[0035] In some embodiments, the liquid collecting member is a funnel 200, see Figure 2 The funnel 200 includes a connected funnel body 210 and a funnel neck 220, the end of the funnel body 210 away from the funnel neck 220 is a first end 211 of the liquid collecting piece, and the end of the funnel neck 220 away from the funnel body 210 is a second end 221, that is, the upper end of the funnel 200 is the first end 211, and the lower end of the funnel 200 is the second end 221.

[0036] In some embodiments, the opening diameter of the first end 211 of the liquid collecting member is greater than or equal to 100 mm. In other words, the upper opening diameter of the funnel 200 is greater than or equal to 100 mm.

[0037] See also Figure 1 and Figure 3 The first liquid drain pipe 310 includes a first portion 311 and a second portion 312 connected to each other. The first portion 311 extends downward in the vertical direction, and the second portion 312 extends in the horizontal direction, and the first portion 311 and the second portion 312 are smoothly transitioned. One end of the first portion 311 away from the second portion 312 is connected to the second end 221 of the liquid collecting member, and one end of the second portion 312 away from the first portion 311 is bent upward to be connected to one end of the water trap 400.

[0038] See also Figure 3The trap 400 includes a third portion 410, a fourth portion 420 and a fifth portion 430 which are connected in sequence. The third portion 410 extends upward in the vertical direction, the fourth portion 420 extends in the horizontal direction, and the fifth portion 430 extends downward in the vertical direction. There is a smooth transition between the third portion 410 and the fourth portion 420, and there is also a smooth transition between the fourth portion 420 and the fifth portion 430. One end of the third portion 410 away from the fourth portion 420 is connected to one end of the first drain pipe 310 away from the second end 221, and one end of the fifth portion 430 away from the fourth portion 420 is connected to the liquid storage tank 600.

[0039] In some embodiments, the height a of the trap 400 is greater than or equal to 50 mm and must not be lower than the pressure in the exhaust pipe 100. Figure 4 , the height a of the trap 400 is 50 mm.

[0040] In some embodiments, the material of the trap 400 is the same as the material of the first drain pipe 310 .

[0041] In some embodiments, a viewing window 700 is disposed on the side of the trap 400 and / or the side of the liquid storage tank 600. Figure 1 An observation window 700 is provided on the side of the third portion 410 of the water trap 400 to observe the water seal height of the water trap 400; an observation window 700 is also provided on the side of the liquid storage tank 600 to observe the liquid level of the accumulated liquid in the liquid storage tank 600.

[0042] In some embodiments, the liquid collecting device for the exhaust pipe also includes a one-way valve 500, which has a third end 510 and a fourth end 520. The third end 510 is connected to an end of the water trap 400 away from the first drain pipe 310, and the fourth end 520 is connected to the liquid storage tank 600, so that the one-way valve 500 can open and close the passage between the water trap 400 and the liquid storage tank 600.

[0043] Specifically, see Figure 5 The one-way valve 500 includes a one-way valve body 530, a float 540, a pressure block 550, a spring 560 and a piston 570. A cavity 531 is opened in the one-way valve body 530. The cavity 531 is connected to the third end 510 and the fourth end 520 respectively. The float 540, the pressure block 550, the spring 560 and the piston 570 are all arranged in the cavity 531. The float 540 is connected to the pressure block 550. The pressure block 550 is connected to the piston 570 through the spring 560. The piston 570 is used to block one end of the cavity 531 that is connected to the fourth end 520.

[0044] When there is no water in the cavity 531 in the one-way valve body 530 or the water therein has not reached a preset height, the float 540 and the pressure block 550, under the action of their own gravity, exert a force downward on the piston 570 through the spring 560, so that the piston 570 can block the end of the cavity 531 connected to the fourth end 520. At this time, the passage between the water trap 400 and the liquid storage tank 600 is closed, and the condensate in the water trap 400 cannot flow into the liquid storage tank 600. When the water in the cavity 531 in the one-way valve body 530 reaches a preset height, the float 540 moves upward under the action of buoyancy, and drives the pressure block 550 to move upward, thereby also driving the spring 560 to stretch upward. When the spring 560 stretches to the limit, it drives the piston 570 to move upward, thereby opening the end of the cavity 531 connected to the fourth end 520, so that the passage between the water trap 400 and the liquid storage tank 600 is opened, and the condensate in the water trap 400 can flow into the liquid storage tank 600. When the water level in the cavity 531 drops to a certain position, the buoyancy decreases, and the piston 570 moves downward again under the action of the pressure block 550, thereby blocking the end of the cavity 531 connected to the fourth end 520 again. At this time, the condensate has been basically drained.

[0045] In some embodiments, the liquid collecting device for the exhaust pipe further includes a stop valve 630 , a liquid discharge port 620 is provided on the liquid storage tank 600 , and the stop valve 630 is connected to the liquid discharge port 620 to open and close the liquid discharge port 620 .

[0046] Specifically, see Figure 1 The top of the liquid storage tank 600 is provided with a liquid inlet 610, the fourth end 520 of the one-way valve 500 is connected with the liquid inlet 610 of the liquid storage tank 600 through the second liquid discharge pipe 320, and the bottom of the liquid storage tank 600 is provided with a liquid outlet, and the liquid outlet of the liquid storage tank 600 is connected with the stop valve 630 through the third liquid discharge pipe 330. When the condensed water in the liquid storage tank 600 reaches a certain height through the observation window 700 on the liquid storage tank 600, the stop valve 630 can be opened to discharge the condensed water in the liquid storage tank 600, and the discharged condensed water can be processed as required.

[0047] The liquid collecting device for the exhaust pipe in the embodiment of the present application has at least the following beneficial effects: the opening area of ​​the first end 211 of the liquid collecting piece is larger than the opening area of ​​the second end 221, and the first end 211 of the liquid collecting piece is connected to the bottom of the exhaust pipe 100, so that the condensate in the exhaust pipe 100 can quickly flow into the liquid collecting piece and be discharged into the liquid storage tank 600 through the first liquid drain pipe 310, thereby preventing the condensate from accumulating in the exhaust pipe 100; the water trap 400 can not only prevent the residual gas in the drainage system 600. The condensate in the drain pipe can be prevented from entering the room, thereby improving the safety of the system and preventing the condensate in the drain pipe from being sucked back into the exhaust pipe 100 when the exhaust fan is started; a one-way valve 500 is installed between the water trap 400 and the liquid storage tank 600, which can automatically discharge the condensate into the liquid storage tank 600; an observation window 700 is provided on the water trap 400 to observe the water seal height of the water trap 400, and an observation window 700 is provided on the side of the liquid storage tank 600 to observe the liquid level of the accumulated liquid in the liquid storage tank 600, so as to take measures to deal with the condensate.

[0048] Other structures and operations of the liquid collecting device for the exhaust duct according to the embodiment of the present application are known to ordinary technicians in the field and will not be described in detail here.

[0049] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A liquid collecting device for an exhaust pipe, characterized in that: include: A liquid collecting member, the liquid collecting member having a first end and a second end, the opening area of ​​the first end is larger than the opening area of ​​the second end, and the first end is connected to the bottom of the exhaust pipe; a first liquid discharge pipe, one end of which is connected to the second end of the liquid collecting member; a water trap, one end of which is in communication with an end of the first liquid discharge pipe away from the second end; A liquid storage tank is connected to an end of the water trap away from the first liquid discharge pipe.

2. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: The first drainage pipe includes a first part and a second part that are connected, the first part extends downward in a vertical direction, the second part extends horizontally, one end of the first part away from the second part is connected to the second end of the liquid collecting piece, and one end of the second part away from the first part is bent upward to be connected to one end of the water trap.

3. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: The water trap includes a third part, a fourth part and a fifth part which are connected in sequence, the third part extends upward in the vertical direction, the fourth part extends in the horizontal direction, and the fifth part extends downward in the vertical direction, an end of the third part away from the fourth part is connected to an end of the first drain pipe away from the second end, and an end of the fifth part away from the fourth part is connected to the liquid storage tank.

4. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: The height of the water trap is greater than or equal to 50 mm.

5. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: An observation window is arranged on a side surface of the water trap and / or a side surface of the liquid storage tank.

6. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: It also includes a one-way valve, which has a third end and a fourth end, the third end is connected to an end of the water trap away from the first drain pipe, and the fourth end is connected to the liquid storage tank, so that the one-way valve can open and close the passage between the water trap and the liquid storage tank.

7. The liquid collecting device for an exhaust pipe according to claim 6, characterized in that: The one-way valve comprises a one-way valve body, a float, a pressure block, a spring and a piston. A cavity is provided in the one-way valve body, and the cavity is communicated with the third end and the fourth end respectively. The float, the pressure block, the spring and the piston are all arranged in the cavity. The float is connected with the pressure block, and the pressure block is connected with the piston through the spring. The piston is used to block one end of the cavity communicating with the fourth end.

8. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: It also includes a stop valve. The liquid storage tank is provided with a liquid discharge port. The stop valve is connected to the liquid discharge port to open and close the liquid discharge port.

9. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: The first end of the liquid collecting piece is connected to the bottom of the exhaust pipe by welding or hot-melt, and the second end of the liquid collecting piece is connected to the first exhaust pipe by thread or welding.

10. The liquid collecting device for an exhaust pipe according to claim 1, characterized in that: The opening diameter of the first end of the liquid collecting member is greater than or equal to 100 mm.

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