Automatic water injection and exhaust system of condensate drainage pump

Abstract

The utility model discloses an automatic water injection and exhaust system of a condensate drainage pump, which relates to the technical field of water pump exhaust, and comprises a condensate drainage pump body, a water storage tank and a liquid level sensor, the condensate drainage pump body is provided with a water injection port and an exhaust port, the water injection port is communicated with the water storage tank through a water injection pipe provided with a first valve, and the exhaust port is provided with a third valve. The condensate water discharging pump body is communicated with the cut tobacco dryer and the power workshop through a condensate water inlet pipe and a condensate water outlet pipe respectively, the water storage tank is communicated with the condensate water outlet pipe through a backflow pipe provided with a second valve, and the liquid level sensor is arranged in the water storage tank. The technical problems that in the prior art, due to the fact that a water injection and exhaust method for the condensate pump body is low in efficiency, water injection is manually operated, the water injection amount is not easy to control, the water injection amount is small, gas emission is incomplete, the water injection amount is large, water overflows from an exhaust port and flows to the outer wall of the condensate pump body, and the outer wall is corroded are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump exhaust, and particularly relates to an automatic water injection exhaust system for a condensate water pump. Background Art

[0002] In the tobacco silk production process, the condensed water produced by the dryer is transported to the power workshop through the condensed water pump. The condensed water pump of the dryer needs to be filled with water before working to discharge the gas in the condensed water pump. If the gas is not discharged before the condensed water pump is started, it will affect the pumping volume of the condensed water pump, resulting in low condensed water discharge efficiency, and will also generate noise, shortening the service life of the condensed water pump.

[0003] The exhaust of the condensate pump is usually done by injecting water into the pump to discharge the gas in the pump, and the existing water injection and exhaust method is usually to set a water injection port and an exhaust port on the condensate pump, and tighten and seal them with bolt plugs. When exhaust is needed, the bolt plugs on the water injection port and the exhaust port are removed, and water is manually added to the water injection port using a funnel to discharge the gas from the exhaust port. The existing water injection and exhaust method for the condensate pump is inefficient, and since it is a manual operation, the water injection amount is difficult to control. If the water injection amount is too little, the gas will not be completely discharged. If the water injection amount is too much, water will overflow from the exhaust port and flow to the outer wall of the condensate pump, which will cause corrosion to the outer wall. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic water injection and exhaust system for a condensate pump, thereby overcoming the low efficiency of the existing water injection and exhaust method for the condensate pump body and the difficulty in controlling the water injection amount due to manual operation. If the water injection amount is too little, the gas discharge is incomplete, and if the water injection amount is too much, water overflows from the exhaust port and flows to the outer wall of the condensate pump body, causing corrosion to the outer wall. The specific technical solution is as follows:

[0005] An automatic water injection and exhaust system for a condensate water discharge pump is arranged between a tobacco drying machine and a power workshop of the tobacco factory, and comprises a condensate water discharge pump body, wherein the condensate water discharge pump body is provided with a water injection port, an exhaust port, a condensate water inlet and a condensate water outlet;

[0006] A water storage component, the water storage component comprising a water storage tank and a liquid level sensor, the liquid level sensor being arranged in the water storage tank and being used for collecting the liquid level in the water storage tank;

[0007] A piping system, the piping system comprising a water injection pipe, a condensed water inlet pipe, a condensed water outlet pipe and a return pipe, the water injection pipe is connected to the bottom end of the water storage tank and the water injection port, one end of the condensed water inlet pipe is connected to the condensed water outlet of the wire drying machine, and the other end is connected to the condensed water inlet, one end of the condensed water outlet pipe is connected to the condensed water outlet, and the other end is connected to the power workshop, one end of the return pipe is connected to the condensed water outlet pipe, and the other end is connected to the water storage tank, and the horizontal height of the bottom end of the water storage tank is higher than the horizontal height of the water injection port;

[0008] A valve system, the valve system comprising a first valve, a second valve and a third valve, the first valve being arranged on the water injection pipe, the second valve being arranged on the return pipe, and the third valve being arranged at the exhaust port;

[0009] A control system is electrically connected to the liquid level sensor and the second valve.

[0010] Preferably, the pipeline system further comprises an exhaust pipe, one end of which is connected to the exhaust port via the third valve, and the other end of which is connected to a drain of the tobacco factory.

[0011] Preferably, the condensate outlet pipe is connected to the return pipe via a three-way pipe fitting, the third outlet of the three-way pipe fitting is connected to the power workshop, a fourth valve is provided at the third outlet of the three-way pipe fitting, and the fourth valve is electrically connected to the control system.

[0012] Preferably, the first valve and the third valve are both electrically connected to the control system.

[0013] Preferably, a fifth valve is provided at the connection point between the condensate outlet and the condensate outlet pipe, and the fifth valve is electrically connected to the control system.

[0014] Preferably, the third valve and the fifth valve are both one-way valves.

[0015] Preferably, a drain port and a drain valve are provided at one end of the condensate outlet pipe close to the condensate outlet, the drain port is located at the lowest point of the condensate outlet pipe, the drain valve is provided at one end of the drain port away from the condensate outlet pipe, and the drain valve is electrically connected to the control system.

[0016] Preferably, the exhaust port is arranged at the top of the condensate discharge pump body, and the horizontal height of the water injection port is higher than the horizontal height of the condensate inlet and the horizontal height of the condensate outlet.

[0017] Preferably, the control system is an MCU or a PLC.

[0018] Preferably, the liquid level sensor is installed on the inner wall of the water tank.

[0019] Compared with the existing technology, the utility model has the following beneficial effects:

[0020] It can be known from the above technical scheme that the utility model provides an automatic water filling and exhaust system for draining condensate water pump, which stores water by setting a water storage tank, a return pipe connects the condensate water outlet pipe and the water storage tank, a liquid level sensor is set in the water storage tank, and a first valve and a second valve are respectively set on the water filling pipe and the condensate water outlet pipe, and the liquid level sensor and the second valve are both electrically connected to the control system. When the liquid level in the water storage tank collected by the liquid level sensor is insufficient to meet the water volume required for the next startup of the condensate water pump body, the control system controls the second valve to open, and the condensate water enters the water storage tank through the condensate water outlet pipe and the return pipe for storage. When the water volume is sufficient, the control system controls the first valve to open. When the second valve is closed, the condensate is discharged to the power workshop. When the condensate pump body is started next time, the first valve only needs to be opened to complete the water filling and exhaust of the condensate pump body, thereby improving the water filling and exhaust efficiency of the condensate pump body and solving the technical problem of low efficiency of the water filling and exhaust method of the condensate pump body in the prior art. At the same time, the water injection amount is accurately controlled by the liquid level sensor, thereby solving the technical problem that the water filling of the condensate pump body in the prior art is manual operation, the water injection amount is difficult to control, and the gas discharge is incomplete if the water injection amount is too little, and the water overflows from the exhaust port and flows to the outer wall of the condensate pump body, causing corrosion to the outer wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Description of main reference numerals:

[0024] 1- condensate pump body, 2- water filling port, 3- exhaust port, 4- condensate inlet, 5- condensate outlet, 6- water storage tank, 7- liquid level sensor, 8- water filling pipe, 9- condensate inlet pipe, 10- condensate outlet pipe, 11- reflux pipe, 12- first valve, 13- second valve, 14- third valve, 15- exhaust pipe, 16- three-way pipe fitting, 17- fourth valve, 18- fifth valve, 19- drain port, 20- drain valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "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 the terms "first", "second", "third" are described, they are only used for the purpose of description and 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.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0029] Example

[0030] like Figure 1 As shown, an embodiment of the present application provides an automatic water injection and exhaust system for a condensate water discharge pump. The automatic water injection and exhaust system for the condensate water discharge pump body is arranged between a tobacco factory's tobacco drying machine and a power workshop of the tobacco factory to transport the condensate generated by the tobacco drying machine to the power workshop, and includes a condensate water discharge pump body 1, a water storage component, a pipeline system, a valve system and a control system.

[0031] The control system may be a PLC or an MCU.

[0032] The condensate discharge pump body 1 is provided with a water injection port 2, an exhaust port 3, a condensate inlet 4 and a condensate outlet 5. The exhaust port 3 is arranged at the top of the condensate discharge pump body 1, so that the gas in the condensate discharge pump body 1 can be discharged as much as possible during water injection. The horizontal height of the water injection port 2 is higher than the horizontal height of the condensate inlet 4 and the horizontal height of the condensate outlet 5. The water storage component includes a water storage tank 6 and a liquid level sensor 7. The liquid level sensor 7 is arranged in the water storage tank 6. The liquid level sensor 7 is used to collect the water level in the water storage tank 6. The pipeline system includes a water injection pipe 8, a cold water pipe 9, and a cold water pipe 10. Condensate inlet pipe 9, condensate outlet pipe 10 and return pipe 11, one end of the water injection pipe 8 is connected to the bottom end of the water storage tank 6, the other end of the water injection pipe 8 is connected to the water injection port 2, the horizontal height of the bottom end of the water storage tank 6 is higher than the horizontal height of the water injection port 2, so that the water storage tank 6 and the condensate discharge pump body 1 are connected, and the water in the water storage tank 6 can flow to the condensate discharge pump body 1 under its own weight, one end of the condensate inlet pipe 9 is connected to the condensate discharge port of the wire drying machine, and the other end of the condensate inlet pipe 9 is connected to the condensate inlet 4, so that the wire drying machine The condensate outlet is communicated with the condensate pump body 1, one end of the condensate outlet pipe 10 is communicated with the condensate outlet 5, and the other end is communicated with the power workshop, so that the condensate pump body 1 is communicated with the power workshop to transport the condensate to the power workshop, one end of the return pipe 11 is communicated with the condensate outlet pipe 10, and the other end of the return pipe 11 is communicated with the water storage tank 6, so that the condensate in the condensate outlet pipe 10 can return to the water storage tank 6 for storage to meet the water demand of the condensate pump body 1 when the condensate pump body 1 is started next time. The valve system includes the first A valve 12, a second valve 13, a third valve 14 and a fifth valve 18, wherein the first valve 12 is arranged on the water injection pipe 8 to control the on-off of the water injection pipe 8, the second valve 13 is arranged on the return pipe 11 to control the on-off of the return pipe 11, the third valve 14 is arranged at the exhaust port 3 to control the opening and closing of the exhaust port 3, the fifth valve 18 is arranged between the condensate outlet 5 and the condensate outlet pipe 10 to control the opening and closing of the condensate outlet 5, and the liquid level sensor 7 and the second valve 13 are both electrically connected to the control system.

[0033] Among them, the liquid level sensor 7 is installed on the inner wall of the water tank 6, and the vertical distance between it and the bottom surface of the water tank 6 is related to the water injection volume required for starting the condensate discharge pump body 1. When the bottom area of ​​the water tank 6 is fixed, the water injection volume is defined as V, the bottom area of ​​the water tank 6 is S, and the vertical distance between the liquid level sensor 7 and the bottom surface of the water tank 6 is h, then h≥V / S is satisfied. The third valve 14 and the fifth valve 18 are one-way valves, thereby avoiding the problem of gas at the exhaust port 3 flowing back at the stop water injection port, and preventing the condensate in the condensate outlet pipe 10 from flowing back when the condensate discharge pump body 1 stops, thereby causing it to stay in the condensate discharge pump body 1 for a long time, thereby affecting the service life of the condensate discharge pump body 1.

[0034] When the embodiment of the present application is in use, the condensed water discharged by the wire drying machine enters the condensed water pump body 1 through the condensed water inlet pipe 9, and is then discharged through the condensed water outlet pipe 10. When the amount of water in the water storage tank 6 collected by the liquid level sensor 7 is insufficient to meet the amount of water required for the next start-up of the condensed water pump body 1, the control system controls the second valve 13 to open, and the condensed water discharged by the condensed water pump body 1 is transported to the power workshop through the condensed water outlet pipe 10. Part of the condensed water will flow into the water storage tank 6 through the reflux pipe 11 until the amount of water in the water storage tank 6 collected by the liquid level sensor 7 meets the amount of water required for the next start-up of the condensed water pump body 1. Control the second valve 13 to close. At this time, all the condensed water discharged from the condensate discharge pump body 1 flows from the condensate outlet pipe 10 to the power workshop. Before starting the condensate discharge pump body 1 next time, only the first valve 12 and the third valve 14 need to be opened, and the water in the water storage tank 6 can enter the condensate discharge pump body 1 from the water injection pipe 8, and the gas in the condensate discharge pump body 1 can be discharged from the exhaust port 3, so as to solve the technical problems of low efficiency of the water injection and exhaust method for the condensate discharge pump in the prior art, and the difficulty in controlling the water injection amount due to manual operation. If the water injection amount is too little, the gas will not be discharged completely, and if the water injection amount is too much, the water will overflow from the exhaust port and flow to the outer wall of the condensate discharge pump, causing corrosion to the outer wall.

[0035] In some embodiments, the pipeline system further includes an exhaust pipe 15, one end of which is connected to the exhaust port 3 through the third valve 14, and the other end of which is connected to the drain of the tobacco factory.

[0036] Among them, by setting the exhaust pipe 15, the gas exhausted from the exhaust port 3 can flow directly from the water outlet of the tobacco factory, and it can prevent the water from flowing directly from the exhaust port 3 to the outer wall of the condensate pump body 1 and corroding the outer wall when the water injection amount is too large due to metering error.

[0037] In some embodiments, the condensate outlet pipe 10 is connected to the return pipe 11 through a three-way pipe fitting 16, the third outlet of the three-way pipe fitting 16 is connected to the power workshop, and a fourth valve 17 is provided at the third outlet of the three-way pipe fitting 16, and the fourth valve 17 is electrically connected to the control system.

[0038] Among them, by setting the fourth valve 17, and the fourth valve 17 is electrically connected to the control system, when the water storage amount in the water tank 6 collected by the liquid level sensor 7 is insufficient, the control system controls the fourth valve 17 to close and the second valve 13 to open, so that all the condensed water in the condensed water outlet pipe 10 enters the water tank 6, thereby improving the water storage efficiency.

[0039] In some embodiments, it may also be provided that both the first valve 12 and the third valve 14 are electrically connected to the control system.

[0040] The control system can be used to control the opening and closing of the first valve 12 and the third valve 14, thereby reducing manual operations and further reducing labor costs. There is no need for operators to open the valves on site, further speeding up the efficiency of water injection and exhaust.

[0041] In some embodiments, a drain port 19 and a drain valve 20 are provided at one end of the condensate outlet pipe 10 close to the condensate outlet 5, the drain port 19 is located at the lowest point of the condensate outlet pipe 10, and the drain valve 20 is provided at the end of the drain port 19 away from the condensate outlet pipe 10, and the drain valve 20 is electrically connected to the control system.

[0042] Among them, by setting the drain port 19 and the drain valve 20, when the condensate pump body 1 is not in use, the condensate remaining in the condensate outlet pipe 10 can be discharged, thereby preventing the condensate from remaining in the pipeline for a long time and corroding the inner wall of the pipeline, thereby affecting the service life of the pipeline.

[0043] In summary, an automatic water filling and exhaust system for a condensate water pump provided in an embodiment of the present application stores water in a water storage tank, a return pipe connects the condensate water outlet pipe and the water storage tank, a liquid level sensor is arranged in the water storage tank, a first valve and a second valve are arranged on the water filling pipe and the condensate water outlet pipe respectively, the liquid level sensor and the second valve are both electrically connected to the control system, when the liquid level in the water storage tank collected by the liquid level sensor is insufficient to meet the water volume required for the next startup of the condensate water pump body, the control system controls the second valve to open, and the condensate water enters the water storage tank through the condensate water outlet pipe and the return pipe for storage, and when the water volume is sufficient, the control system controls the second valve to open. When the condensate pump body is closed, the condensate is discharged to the power workshop. When the condensate pump body is started next time, the water filling and exhaust of the condensate pump body can be completed by opening the first valve, thereby improving the water filling and exhaust efficiency of the condensate pump body, and solving the technical problem of low efficiency of the water filling and exhaust method of the condensate pump body in the prior art. At the same time, the water injection amount is accurately controlled by the liquid level sensor, thereby solving the technical problem that the water filling of the condensate pump body in the prior art is manual operation, the water injection amount is difficult to control, the gas discharge is incomplete if the water injection amount is too little, and the water overflows from the exhaust port and flows to the outer wall of the condensate pump body, causing corrosion to the outer wall.

[0044] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An automatic water injection and exhaust system for condensate pumps, arranged between a tobacco drying machine and a power workshop of a tobacco factory, characterized in that: include: A condensate discharge pump body (1), wherein the condensate discharge pump body (1) is provided with a water injection port (2), an exhaust port (3), a condensate inlet (4) and a condensate outlet (5); A water storage component, the water storage component comprising a water storage tank (6) and a liquid level sensor (7), the liquid level sensor (7) being arranged in the water storage tank (6) and being used for collecting the liquid level in the water storage tank (6); A pipeline system, the pipeline system comprising a water injection pipe (8), a condensate inlet pipe (9), a condensate outlet pipe (10) and a return pipe (11), the water injection pipe (8) being connected to the bottom end of the water storage tank (6) and the water injection port (2), one end of the condensate inlet pipe (9) being connected to the condensate outlet of the wire drying machine, and the other end being connected to the condensate inlet (4), one end of the condensate outlet pipe (10) being connected to the condensate outlet (5), and the other end being connected to the power workshop, one end of the return pipe (11) being connected to the condensate outlet pipe (10), and the other end being connected to the water storage tank (6), the horizontal height of the bottom end of the water storage tank (6) being higher than the horizontal height of the water injection port (2); A valve system, the valve system comprising a first valve (12), a second valve (13) and a third valve (14), the first valve (12) being arranged on the water injection pipe (8), the second valve (13) being arranged on the return pipe (11), and the third valve (14) being arranged at the exhaust port (3); A control system, wherein the control system is electrically connected to the liquid level sensor (7) and the second valve (13).

2. The automatic water injection and exhaust system for condensate drain pump according to claim 1, characterized in that: The pipeline system also includes an exhaust pipe (15), one end of which is connected to the exhaust port (3) through the third valve (14), and the other end of which is connected to the drain of the tobacco factory.

3. The automatic water injection and exhaust system for condensate discharge pump according to claim 1 is characterized in that: The condensate outlet pipe (10) is connected to the return pipe (11) via a three-way pipe fitting (16); the third outlet of the three-way pipe fitting (16) is connected to the power plant; a fourth valve (17) is provided at the third outlet of the three-way pipe fitting (16); and the fourth valve (17) is electrically connected to the control system.

4. The automatic water injection and exhaust system for condensate discharge pump according to claim 1, characterized in that: The first valve (12) and the third valve (14) are both electrically connected to the control system.

5. The automatic water injection and exhaust system for condensate drain pump according to claim 1, characterized in that: A fifth valve (18) is provided at the point where the condensate outlet (5) is connected to the condensate outlet pipe (10), and the fifth valve (18) is electrically connected to the control system.

6. The automatic water injection and exhaust system for condensate drain pump according to claim 5, characterized in that: The third valve (14) and the fifth valve (18) are both one-way valves.

7. The automatic water injection and exhaust system for condensate drain pump according to claim 1, characterized in that: A drain port (19) and a drain valve (20) are provided at one end of the condensate outlet pipe (10) close to the condensate outlet (5); the drain port (19) is located at the lowest point of the condensate outlet pipe (10); the drain valve (20) is provided at one end of the drain port (19) away from the condensate outlet pipe (10); and the drain valve (20) is electrically connected to the control system.

8. The automatic water injection and exhaust system for condensate drain pump according to claim 1, characterized in that: The exhaust port (3) is arranged at the top end of the condensate discharge pump body (1), and the horizontal height of the water injection port (2) is higher than the horizontal height of the condensate inlet (4) and the horizontal height of the condensate outlet (5).

9. The automatic water injection and exhaust system for condensate drain pump according to claim 1, characterized in that: The control system is MCU or PLC.

10. The automatic water injection and exhaust system for condensate drain pump according to claim 1, characterized in that: The liquid level sensor (7) is installed on the inner wall of the water storage tank (6).

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