Water pumping bottom valve pipeline

Abstract

The utility model discloses a water pumping bottom valve pipeline in the field of water pump bottom valve troubleshooting, and aims to solve the problems of difficulty in water taking and low efficiency caused by the fact that an inlet pipeline of a fire-fighting water taking pump in the prior art is not fully filled all the time. The method comprises the steps that when a valve clack and a guide rod are clamped, a rod piece stretches into a straight section pipeline from a working opening to reach the interior of a bottom valve, the rod piece is used for knocking the valve clack, sliding between the valve clack and the guide rod is recovered, gaps between the valve clack and the working face are avoided, fault elimination is achieved, and it is guaranteed that water can be normally supplied with natural water as a water pumping source; a water source can reach the upper valve body from the lower valve body through the working surface and is finally extracted; therefore, normal water taking is guaranteed.

Description

Technical Field

[0001] The utility model relates to a water pumping bottom valve pipeline and belongs to the field of water pump bottom valve fault elimination. Background Art

[0002] Fire water pump is an important fire safety equipment in oil depot. Some oil depots are located in special geographical locations, and fire water can only be taken from nearby rivers. The water has a high density of debris and is highly corrosive, which often leads to the hidden danger of the bottom valve disc of the fire water pump getting stuck and not sealing, seriously affecting the normal use of the water pump.

[0003] Specifically, before starting the fire water pump, the inlet pipeline must first be filled with water to exhaust the air in the pipe. Only when the bottom valve disc falls on the sealing surface at the bottom of the valve, the bottom valve is closed tightly and the water poured in will not leak out of the pipe. Because the bottom valve of the water pump is immersed in the river water all year round, the smooth guide rod is corroded for a long time, and the friction between it and the shaft sleeve of the valve disc increases, causing the valve disc of the bottom valve of the water pump to often get stuck on the guide rod and fail to fall back onto the sealing surface, causing the water in the pipeline to leak out from the gap between the valve disc and the sealing surface, resulting in the fire water pump inlet pipeline always being unable to be filled no matter how much water is poured, resulting in difficulty in water extraction and low efficiency. Utility Model Content

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and to provide a pumping bottom valve pipeline that ensures normal water intake when natural water flow is used as a water source.

[0005] In order to achieve the above objectives, this application is implemented by adopting the following technical solutions:

[0006] The present application provides a water pumping bottom valve pipeline, comprising:

[0007] A bottom valve, comprising an upper valve body, a lower valve body and a valve seat, wherein a working surface is provided at the center of the valve seat to connect the upper valve body and the lower valve body; the bottom valve further comprises a guide rod fixed to the inner wall of the bottom valve, and a valve flap sleeved on the guide rod, wherein the position of the valve flap corresponds to the working surface, and the valve flap slides on the guide rod to open and close the working surface;

[0008] A straight section pipeline, the bottom valve is directly connected to one end of the straight section pipeline, and the straight section pipeline corresponds to the position of the valve disc;

[0009] A working port is provided at the other end of the straight section pipeline, and the working port includes an openable and closable water plug;

[0010] A rod is used to be inserted from the working port through the straight section pipeline into the bottom valve to control the sliding of the valve flap.

[0011] In some embodiments of the present application, the working port further includes an externally threaded pipe and an internally threaded pipe. The externally threaded pipe is fixedly connected and communicated with the straight pipe section. The internally threaded pipe is communicated with the externally threaded pipe through threads. The water plug is provided with threads for sealing connection with the internally threaded pipe.

[0012] In some embodiments of the present application, the pumping foot valve pipeline further includes a second pipeline communicated with the straight pipe section. A water pump is arranged inside the second pipeline, and the water pump is force-transmittingly connected with an electric motor.

[0013] In some embodiments of the present application, the second pipeline is also communicated with a water diversion pipe.

[0014] In some embodiments of the present application, the pumping foot valve pipeline further includes a third pipeline communicated with the second pipeline. A water outlet pipe and a valve for controlling the water outlet pipe are arranged at the end of the third pipeline.

[0015] In some embodiments of the present application, a check valve is also arranged on the third pipeline.

[0016] In some embodiments of the present application, the rod member is a galvanized steel pipe.

[0017] In some embodiments of the present application, the working port and the straight pipe section are connected by welding.

[0018] Compared with the prior art, the beneficial effects achieved by the present application are as follows:

[0019] For the pumping foot valve pipeline provided by the present application, when the valve flap is stuck with the guide rod, the rod member is inserted into the straight pipe section from the working port to reach inside the foot valve. The valve flap is knocked by the rod member to restore the sliding between the valve flap and the guide rod, avoiding the generation of gaps between the valve flap and the working surface, realizing the elimination of faults, ensuring the normal water supply with natural water bodies as the pumping water source, and enabling the water source to pass through the working surface from the lower valve body to the upper valve body and finally be pumped. Thus, the normal water intake is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic cross-sectional structure diagram of the foot valve in the pumping foot valve pipeline provided in this embodiment;

[0022] Figure 2It is a schematic structural diagram of an external threaded pipe in a pumping bottom valve pipeline provided by this embodiment;

[0023] Figure 3 It is a schematic structural diagram of an internal threaded pipe in a pumping bottom valve pipeline provided by this embodiment;

[0024] Figure 4 It is a schematic structural diagram of a water plug in a pumping bottom valve pipeline provided by this embodiment;

[0025] Figure 5 It is a schematic structural diagram of a rod member in a pumping bottom valve pipeline provided by this embodiment;

[0026] Figure 6 It is a schematic structural diagram of a pumping bottom valve pipeline provided by this embodiment;

[0027] In the figure: 1 - bottom valve; 1.1 - upper valve body; 1.2 - lower valve body; 1.3 - valve flap; 1.4 - guide rod; 1.5 - valve seat; 1.6 - working surface;

[0028] 2 - working port; 2.1 - external threaded pipe; 2.2 - internal threaded pipe; 2.3 - water plug;

[0029] 3 - rod member;

[0030] 4 - straight pipeline section;

[0031] 5 - water intake pipe; 6 - water pump; 7 - motor; 8 - check valve; 9 - valve; 10 - outlet pipe; 11 - second pipeline section; 12 - third pipeline section. Detailed implementation manners

[0032] Next, the technical solutions in the present application / embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the present application / embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application / embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present application / embodiments of the present application and its application or use. Embodiment 1

[0033] This embodiment provides a pumping bottom valve pipeline to solve the problem that when the pumping bottom valve pipeline uses natural water as the water source in the prior art, the valve flap and the guide rod may get stuck, resulting in the inability to draw water normally.

[0034] In response to this problem, the conventional solution is to send someone to dive to the bottom of the water to replace the bottom valve with the stuck valve flap. The entire repair process takes at least 6 - 7 hours and requires the close cooperation of at least 4 maintenance personnel to complete. Such a solution is time-consuming, laborious and uneconomical.

[0035] Refer to Figures 1 to 6, the pumping foot valve pipeline provided in this embodiment includes

[0036] The foot valve 1 includes an upper valve body 1.1, a lower valve body 1.2 and a valve seat 1.5. A working surface 1.6 is provided at the center of the valve seat 1.5 to connect the upper valve body 1.1 and the lower valve body 1.2; the foot valve 1 further includes a guide rod 1.4 fixed to the inner wall of the foot valve 1, and a valve flap 1.3 sleeved on the guide rod 1.4. The position of the valve flap 1.3 corresponds to the working surface 1.6, and the valve flap 1.3 slides on the guide rod 1.4 to open and close the working surface 1.6;

[0037] Reference Figure 1 , during normal use, a negative pressure is generated in the pipeline by means of a water pump or manual extraction. Under the drive of the pressure, the valve flap 1.3 slides upward along the guide rod 1.4, so that the valve flap 1.3 is separated from the working surface 1.6, and the upper valve body 1.1 and the lower valve body 1.2 are connected through the working surface 1.6, and the water flows into the pipeline through the foot valve 1; then, the pressure in the pipeline recovers, and under the influence of its own gravity and water pressure, the valve flap 1.3 slides downward along the guide rod 1.4, and the valve flap 1.3 is hermetically attached to the working surface 1.6, and the upper valve body 1.1 and the lower valve body 1.2 are isolated by the valve flap 1.3 to prevent the water flow in the pipeline from flowing out of the foot valve 1 through the working surface 1.6 and the lower valve body 1.2.

[0038] The pumping foot valve pipeline further includes a straight pipeline section 4, and the foot valve 1 is directly connected to one end of the straight pipeline section 4, corresponding to the position of the valve flap 1.3;

[0039] The pumping foot valve pipeline further includes a working port 2, which is arranged at the other end of the straight pipeline section 4. The working port 2 includes an openable water plug 2.3;

[0040] Reference Figure 5 , the pumping foot valve pipeline further includes a rod member 3, which is used to insert into the foot valve 1 through the working port 2 and the straight pipeline section 4 to control the sliding of the valve flap 1.3.

[0041] When the valve flap 1.3 rusts due to the corrosion of the water body between the valve flap 1.3 and the guide rod 1.4, the valve flap 1.3 will get stuck after rising along the guide rod 1.4, and the valve flap 1.3 cannot normally fall along the guide rod 1.4 to close the working surface 1.6. If not stopped, when the pressure in the pipeline recovers, the water flow will leak through the unfit gap between the valve flap 1.3 and the working surface 1.6, resulting in a slow rise of the water level in the pipeline, a decrease in the pumping efficiency, or even complete inability to pump water.

[0042] Therefore, when the valve flap 1.3 cannot normally fall along the guide rod 1.4 to close the working surface 1.6, reference Figure 6, open the water plug 2.3 of the working port 2, insert the rod 3 into the straight pipe section 4 through the working port 2, insert the rod 3 into the bottom valve 1 along the straight pipe section 4, and use the rod 3 to knock the valve flap 1.3 off the guide rod 1.4, so that the valve flap 1.3 fits the working surface 1.6 again, closing the upper valve body 1.1 and the lower valve body 1.2.

[0043] Pull out the guide rod 1.4, close the working port 2 to create negative pressure in the pipeline. Under the drive of pressure, the lower valve flap 1.3 slides upward along the guide rod 1.4, so that the valve flap 1.3 disengages from the working surface 1.6, and the upper valve body 1.1 and the lower valve body 1.2 are connected through the working surface 1.6, and water flows into the pipeline through the bottom valve 1; then, the pressure in the pipeline recovers. Due to the external impact on the rust point during knocking, the rust debris of the rust point falls off, and the valve flap 1.3 can slide downward along the guide rod 1.4 normally. The valve flap 1.3 is hermetically attached to the working surface 1.6, and the upper valve body 1.1 and the lower valve body 1.2 are isolated by the valve flap 1.3 to prevent the water flow in the pipeline from flowing out of the bottom valve 1 through the working surface 1.6 and the lower valve body 1.2.

[0044] Therefore, if limited by the environment and the fire water can only use natural water sources, the pumping bottom valve pipeline provided by this embodiment can well alleviate the problem of difficult pumping caused by water body corrosion, and is economical and efficient. Embodiment Two

[0045] This embodiment provides a pumping bottom valve pipeline. This embodiment is optimized on the basis of Embodiment One to improve the technical effect and refine the technical solution. For the content not described in detail in this embodiment, please refer to Embodiment One.

[0046] Optionally, in a further but non-limiting embodiment of the present application, refer to Figures 2 to 4 , the working port 2 further includes an external threaded pipe 2.1 and an internal threaded pipe 2.2. The external threaded pipe 2.1 is fixedly connected and communicated with the straight pipe section 4, and the internal threaded pipe 2.2 is threadedly communicated with the external threaded pipe 2.1; the water plug 2.3 is provided with threads for hermetically connecting with the internal threaded pipe 2.2.

[0047] As one of the embodiments, an opening corresponding to the valve flap 1.3 is made in the straight pipe section 4, and the lower half without threads of the external threaded pipe 2.1 is welded to the opening; the internal threaded pipe 2.2 is threadedly connected to the upper half with threads of the external threaded pipe 2.1, and a part is reserved for connection with the threads of the water plug 2.3; in addition, a T-shaped handle can be provided at the top of the water plug 2.3 for easy screwing.

[0048] As one of the embodiments, refer to Figure 6 , the pumping bottom valve pipeline further includes a second pipeline 11 communicated with the straight pipe section 4. A water pump 6 is arranged inside the second pipeline 11. The water pump 6 is force-transmittingly connected to the electric motor 7, and the water pump 6 is driven by the electric motor 7 to replace manual pumping.

[0049] Optionally, the second pipeline 11 is also connected to the water diversion pipe 5, and the water diversion pipe 5 can be used to assist in water diversion or observe the pressure inside the pipe.

[0050] As one of the embodiments, referring to Figure 6 , the bottom valve pipeline for pumping water further includes a third pipeline 12 connected to the second pipeline 11. The end of the third pipeline 12 is provided with a water outlet pipe 10 and a valve 9 for controlling the water outlet pipe 10. The water flow flows out from the water outlet pipe 10 and is controlled by the valve 9.

[0051] Optionally, a check valve 8 is further provided on the third pipeline 12 to prevent the water flow near the water outlet pipe 10 from flowing back.

[0052] As one of the embodiments, the rod 3 is a galvanized steel pipe.

[0053] As one of the specific design solutions, the bottom valve pipeline for pumping water provided in this embodiment can be used for the transformation of the bottom valve pipeline of the fire pump in the oil depot: the external thread pipe 2.1 is a welded hot-dip galvanized steel pipe with an outer diameter of 75 mm and a length of 100 mm with external threads, the internal thread pipe 2.2 is a hot-dip galvanized steel internal thread joint with an outer diameter of 75 mm, the water plug 2.3 is a hot-dip galvanized steel water plug with an outer diameter of 75 mm, and the rod 3 is a hot-dip galvanized steel pipe with an outer diameter of 25 mm and a length of 3000 mm. With the cooperation of maintenance personnel and welders, first, a circular hole with a diameter of 77 mm should be opened in the exact middle of the vertical elbow of the fire pump inlet pipe, and the vertical elbow is Figure 6At the connection between the straight section of the pipeline 4 and the second section of the pipeline 11, a welded hot-dip galvanized steel pipe with an outer thread, 75 mm in diameter and 100 mm in length, is vertically inserted into the opened round hole by no more than 5 mm. Use a universal angle gauge to measure that the inserted pipe fitting and the joint surface form a 90° right angle, then spot-weld the joint seam. Measure the perpendicularity again with the universal angle gauge. After calibration, fully weld the joint seam. Then, evenly wrap the outer thread of the 75-mm diameter steel pipe with no less than 10 layers of raw tape. Next, slip a 75-mm diameter hot-dip galvanized steel internal thread joint over the outer thread of the welded 75-mm diameter steel pipe and tighten it clockwise. Next, weld the end of a 50-mm long hot-dip galvanized steel pipe to the middle end face (at the 50-mm center of the pipe section) of the 100-mm long hot-dip galvanized steel pipe to form a T shape. Next, vertically weld the other end face of the 50-mm long hot-dip galvanized steel pipe in this T shape to the center of the front end face of a 75-mm diameter hot-dip galvanized steel water plug. Next, evenly wrap the outer thread of the 75-mm diameter hot-dip galvanized steel water plug with no less than 10 layers of raw tape. Next, screw this steel water plug onto the 75-mm diameter hot-dip galvanized steel internal thread joint and turn the T-shaped handle on the plug clockwise until it is tightened. Thus, the transformation of this set of devices for quickly eliminating the bottom valve failure of the water pump is completed. Before starting the fire-fighting water intake pump, if it is found that the water for priming the pump flows out from the bottom valve (the method for judging that there is water flowing out from the bottom valve is that when priming, the exhaust valve does not emit air or water, but instead inhales air reversely. When touching the exhaust port by hand, there is a feeling of being adsorbed, and at the same time, it can be seen that there are bubbles tumbling with the water flow at the bottom valve), quickly turn the T-shaped handle on the steel plug counterclockwise until the plug is fully opened. Then, quickly insert the end of a 25-mm diameter steel pipe wrapped with cotton cloth into the opened water inlet pipe, hold the steel pipe by hand and gently tap the stuck valve flap. At this time, the valve flap will immediately drop. Then, quickly pull out the thin steel pipe and tighten the steel plug clockwise to evacuate the air in the pipe. It mainly solves the following problems: meeting the requirement in Article 7.1.6 of the Technical Code for Fire Protection Water Supply and Fire Hydrant Systems (GB50974-2014) that the water filling time of a dry fire hydrant system shall not be greater than 5 minutes. This set of devices can eliminate the failure with simple operations and has extremely strong practicability.

[0054] In summary, the pumping bottom valve pipeline provided in this embodiment is ingeniously and simply designed, scientific and reasonable, with small economic investment, simple process operation, short transformation cycle, remarkable effects and has been effectively verified in practice. It can be applied to the elimination of the same type of failures of the water intake pumps in all factories and enterprises.

[0055] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0056] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "provided with", "located", "installed", "set", etc. 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances. "Hinged" includes "rotary connection".

[0057] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A pumping bottom valve pipeline, characterized in that: include, A bottom valve (1) comprises an upper valve body (1.1), a lower valve body (1.2) and a valve seat (1.5); a working surface (1.6) is provided at the center of the valve seat (1.5) to connect the upper valve body (1.1) and the lower valve body (1.2); the bottom valve (1) also comprises a guide rod (1.4) fixed to the inner wall of the bottom valve (1), and a valve flap (1.3) sleeved on the guide rod (1.4); the position of the valve flap (1.3) corresponds to the working surface (1.6), and the valve flap (1.3) slides on the guide rod (1.4) to open and close the working surface (1.6); A straight section pipeline (4), the bottom valve (1) being directly connected to one end of the straight section pipeline (4), and the straight section pipeline (4) corresponds to the position of the valve flap (1.3); A working port (2) is provided at the other end of the straight section pipeline (4), and the working port (2) comprises an openable and closable water plug (2.3); A rod (3) is used to be inserted from the working port (2) through the straight section pipeline (4) into the bottom valve (1) to control the sliding movement of the valve flap (1.3).

2. The pumping bottom valve pipeline according to claim 1, characterized in that: The working port (2) further comprises an externally threaded pipe (2.1) and an internally threaded pipe (2.2); the externally threaded pipe (2.1) is fixedly connected and communicated with the straight section pipeline (4); the internally threaded pipe (2.2) is communicated with the externally threaded pipe (2.1) via threads; and the water plug (2.3) is provided with threads for closed connection with the internally threaded pipe (2.2).

3. The pumping bottom valve pipeline according to claim 1, characterized in that: The pumping bottom valve pipeline further comprises a second section of pipeline (11) in communication with the straight section of pipeline (4), a water pump (6) is arranged inside the second section of pipeline (11), and the water pump (6) is connected to the motor (7) for force transmission.

4. The pumping bottom valve pipeline according to claim 3 is characterized in that: The second section of the pipeline (11) is also in communication with the water diversion pipe (5).

5. The pumping bottom valve pipeline according to claim 3 is characterized in that: The pumping bottom valve pipeline further comprises a third section of pipeline (12) connected to the second section of pipeline (11), and a water outlet pipe (10) and a valve (9) for controlling the water outlet pipe (10) are arranged at the end of the third section of pipeline (12).

6. The pumping bottom valve pipeline according to claim 5, characterized in that: The third section of the pipeline (12) is also provided with a check valve (8).

7. The pumping bottom valve pipeline according to claim 1, characterized in that: The rod (3) is a galvanized steel pipe.

8. The pumping bottom valve pipeline according to claim 1, characterized in that: The working port (2) and the straight section pipeline (4) are connected by welding.

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