Pipeline pump water supply device

Abstract

This utility model discloses a water filling device for a pipeline pump, comprising: a water filling tank, an inlet pipe, a connecting pipe, a water pump, and an outlet pipe. The top of the water filling tank is equipped with both a water filling pipe and an exhaust pipe; the inlet pipe is horizontally connected to the water filling tank and is equipped with a bottom valve; the connecting pipe is horizontally connected to the water filling tank, with its connection point lower than that of the inlet pipe; the water pump is connected to the end of the connecting pipe furthest from the water filling tank; and the outlet pipe is connected to the water pump. This utility model achieves visualized water filling through a high-positioned second valve, thoroughly eliminating gas from the pipeline; the status of the bottom valve is directly determined by the change in the static water level of the water filling tank, improving detection reliability; the low-position interface of the connecting pipe forms a "liquid level safety lock," ensuring a constant supply of life-saving water in the pump cavity and eliminating the risk of pump burnout; only the valve and tank combination is required, with no electrical components, resulting in a low failure rate and simple maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixing plant equipment, and in particular to a pipeline pump water supply device. Background Technology

[0002] Currently, in the clean water supply system of concrete mixing plants, centrifugal water pumps require water injection and air purging (commonly known as "priming") before initial startup. The traditional method of directly injecting water through the foot valve of the inlet pipe has two major technical drawbacks. First, initial water injection is difficult: when the inlet pipe is long, it is difficult to completely expel the air, preventing the pump from establishing effective suction. Second, foot valve leakage can easily lead to dry running: if the foot valve is not properly sealed, water leakage after injection can cause the pump to burn out due to dry running during startup.

[0003] Furthermore, existing technologies rely on manual, repeated water injection and observation of the foot valve for leakage, but lack a systematic detection and protection mechanism. When the foot valve fails, water continues to leak from the pipeline until it is emptied. Restarting the pump inevitably leads to a dry-pumping accident, causing equipment damage and increased maintenance costs. Therefore, a pipeline pump water injection device is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a water filling device for a pipeline pump, which aims to solve the problems of ensuring reliable water filling and venting during the first start-up of the pump, and preventing the pump from burning out due to leakage of the bottom valve.

[0005] To achieve the above objectives, this utility model provides a pipeline pump water filling device, comprising:

[0006] A water tank, the top of which is equipped with a water inlet pipe and a vent pipe; the water inlet pipe is equipped with a first valve, and the vent pipe is equipped with a second valve;

[0007] A water inlet pipe, one end of which is horizontally connected to the water tank, and is equipped with a bottom valve;

[0008] A connecting pipe, one end of which is horizontally connected to the water tank, wherein the connection point between the connecting pipe and the water tank is lower than the connection point between the inlet pipe and the water tank;

[0009] A water pump is connected to the end of the connecting pipe away from the water tank;

[0010] A water outlet pipe is connected to the water pump.

[0011] In a preferred embodiment, the first valve is a 1-inch ball valve and the second valve is a 3 / 4-inch ball valve.

[0012] In a preferred embodiment, the top of the water inlet pipe is provided with a water inlet funnel.

[0013] In a preferred embodiment, the water inlet pipe includes a first horizontal pipe and a first vertical pipe connected vertically, one end of the first horizontal pipe is connected to the top of the water tank in a horizontal direction, and the bottom valve is located at the bottom of the first vertical pipe.

[0014] In a preferred embodiment, the outlet pipe includes a second horizontal pipe and a second vertical pipe connected vertically, with one end of the second horizontal pipe away from the second vertical pipe connected to the water pump.

[0015] In a preferred embodiment, the connecting pipe is horizontally connected to the bottom of the water tank.

[0016] In a preferred embodiment, a support frame is also included, on which the water tank and the water pump are fixed.

[0017] In a preferred embodiment, the bottom of the support frame is provided with a plurality of buffer columns.

[0018] The pipeline pump water filling device provided by this utility model, upon first use, opens the second valve to facilitate venting when filling the water tank, then opens the first valve to add water to the tank until water emerges from the top of the vent pipe. After standing for a period of time (e.g., 30 minutes), observe whether the water level drops. If the water level drops, it indicates a leak in the bottom valve, which should be replaced. If the water level remains almost unchanged, it indicates good pipeline sealing. At this point, close the second and first valves. The water pump begins to draw water through the inlet pipe, allowing water to pass sequentially through the bottom valve, inlet pipe, water tank, connecting pipe, pump, and outlet pipe, thus achieving external water extraction. The inlet pipe is higher than the connecting pipe, creating a safety level in the water tank. After a period of use, if the bottom valve malfunctions and leaks, when the water level in the tank falls below the safety level, water will no longer leak out, keeping the pump in a water-filled state. This prevents the pump from running dry during subsequent starts, thus avoiding pump burnout and reducing equipment maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the main structure of the pipeline pump water filling device provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows a side view of the water supply device for the pipeline pump.

[0022] The following are the labels in the diagram: 100, water filling device for pipeline pump; 10, water tank; 11, water filling pipe; 111, first valve; 112, water filling funnel; 12, vent pipe; 121, second valve; 20, water inlet pipe; 21, first horizontal pipe; 22, first vertical pipe; 30, connecting pipe; 40, water pump; 50, water outlet pipe; 51, second horizontal pipe; 52, second vertical pipe; 60, bottom valve; 70, support frame; 71, buffer column. Detailed Implementation

[0023] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] In an embodiment of this utility model, a pipeline pump water filling device 100 is provided to form a "liquid level safety lock" to ensure that the pump 40 chamber always contains life-saving water, eliminate the risk of pump burnout, and at the same time realize visual water filling and venting, solving the problem of the first water filling.

[0027] like Figure 1 and Figure 2 As shown, the pipeline pump water filling device 100 includes: a water filling tank 10, an inlet pipe 20, a connecting pipe 30, a water pump 40, and an outlet pipe 50.

[0028] Specifically, the top of the water tank 10 is provided with a water inlet pipe 11 and an exhaust pipe 12. Both the water inlet pipe 11 and the exhaust pipe 12 are vertically arranged on the top of the water tank 10, and the height of the water inlet pipe 11 is higher than the height of the exhaust pipe 12.

[0029] The water inlet pipe 11 is equipped with a first valve 111, which is a one-inch ball valve. The exhaust pipe 12 is equipped with a second valve 121, which is a three-quarter ball valve.

[0030] Furthermore, a water filling funnel 112 is provided at the top of the water filling pipe 11, which is used to add water to the water filling tank 10 through the water filling pipe 11. When the water filling tank 10 is full of water, the water will be discharged from the top of the vent pipe 12, thereby realizing visual water filling and venting, and thus solving the problem of the first water filling.

[0031] One end of the inlet pipe 20 is horizontally connected to the water tank 10 and is equipped with a bottom valve 60. Specifically, the inlet pipe 20 includes a first horizontal pipe 21 and a first vertical pipe 22 that are vertically connected. One end of the first horizontal pipe 21 is connected to the top of the water tank 10 in a horizontal direction, and the bottom valve 60 is located at the bottom of the first vertical pipe 22. The inlet pipe 20 and the bottom valve 60 constitute a sealing detection object, and the water level change in the water tank 10 can directly reflect the state of the bottom valve 60.

[0032] One end of the connecting pipe 30 is horizontally connected to the water tank 10. The connecting pipe 30 is horizontally connected to the bottom of the water tank 10. That is, the connection point between the connecting pipe 30 and the water tank 10 is lower than the connection point between the inlet pipe 20 and the water tank 10, thereby establishing a safety liquid level in the water tank 10. When the water level in the water tank 10 is lower than the opening of the inlet pipe 20 but higher than the opening of the connecting pipe 30, leakage is automatically stopped.

[0033] The water pump 40 is connected to the end of the connecting pipe 30 away from the water tank 10, thereby ensuring that the water below the safety liquid level always fills the pump chamber, maintaining the startable state and preventing the pump from burning out.

[0034] In this embodiment, the outlet pipe 50 is connected to the water pump 40. Specifically, the outlet pipe 50 includes a second horizontal pipe 51 and a second vertical pipe 52 that are vertically connected. The end of the second horizontal pipe 51 away from the second vertical pipe 52 is connected to the water pump 40.

[0035] In some embodiments, the pipeline pump water filling device 100 further includes a support frame 70. The water tank 10 and the water pump 40 are fixed to the support frame 70. Furthermore, the bottom of the support frame 70 is provided with a plurality of buffer columns 71, thereby reducing the vibration noise of the water pump 40.

[0036] In summary, the pipeline pump water filling device 100 provided by this utility model, when used for the first time, opens the second valve 121 to facilitate venting when filling the water tank 10 with water, then opens the first valve 111 to add water to the water tank 10 until water emerges from the top of the vent pipe 12. After standing for a period of time (e.g., 30 minutes), observe whether the water level drops. If the water level drops, it indicates that the bottom valve 60 is leaking, and a new bottom valve 60 should be replaced. If the water level hardly changes, it indicates that the pipeline is well-sealed. At this time, close the second valve 121 and the first valve 111, and the water pump 40 begins to draw water through the inlet pipe 20, allowing the water to pass sequentially through the bottom valve 60, the inlet pipe 20, the water tank 10, the connecting pipe 30, the water pump 40, and the outlet pipe 50, thereby achieving external water pumping. The inlet pipe 20 is higher than the connecting pipe 30, thus creating a safety level in the water tank 10. After a period of use, if the bottom valve 60 malfunctions and leaks, the water level in the water tank 10 will be lower than the safety level, preventing further leakage and keeping the water pump 40 in a water-filled state. This prevents the pump from running dry during the next start-up, thus avoiding pump burnout and reducing equipment maintenance costs.

[0037] Therefore, this utility model has the following beneficial effects:

[0038] (1) Initial water filling and air venting: Visual water filling is achieved through the high-position second valve 121 to completely remove gas from the pipeline;

[0039] (2) Bottom valve 60 sealing test: The status of bottom valve 60 is directly judged by the change of water level in water tank 10 after static water addition, which improves the reliability of the test;

[0040] (3) Anti-dry pumping protection: The low-level interface of the connecting pipe forms a "liquid level safety lock" to ensure that the water pump 40 cavity always contains life-saving water and eliminates the risk of pump burnout;

[0041] (4) Maintenance cost control: The structure only requires valves and tanks, without electrical components, resulting in a low failure rate and easy maintenance.

[0042] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A pipeline pump water supply device, characterized in that, include: A water tank, the top of which is equipped with a water inlet pipe and a vent pipe; the water inlet pipe is equipped with a first valve, and the vent pipe is equipped with a second valve; A water inlet pipe, one end of which is horizontally connected to the water tank, and is equipped with a bottom valve; A connecting pipe, one end of which is horizontally connected to the water tank, wherein the connection point between the connecting pipe and the water tank is lower than the connection point between the inlet pipe and the water tank; A water pump is connected to the end of the connecting pipe away from the water tank; A water outlet pipe, which is connected to the water pump; The first valve is a 1-inch ball valve, and the second valve is a 3 / 4-inch ball valve; The top of the water inlet pipe is equipped with a water inlet funnel; The connecting pipe is horizontally connected to the bottom of the water tank.

2. The pipeline pump water supply device as described in claim 1, characterized in that, The water inlet pipe includes a first horizontal pipe and a first vertical pipe connected vertically. One end of the first horizontal pipe is connected to the top of the water tank in a horizontal direction, and the bottom valve is located at the bottom of the first vertical pipe.

3. The pipeline pump water supply device as described in claim 1, characterized in that, The outlet pipe includes a second horizontal pipe and a second vertical pipe that are vertically connected, and the end of the second horizontal pipe away from the second vertical pipe is connected to the water pump.

4. The pipeline pump water supply device as described in claim 1, characterized in that, It also includes a support frame, on which the water tank and the water pump are fixed.

5. The pipeline pump water supply device as described in claim 4, characterized in that, The bottom of the support frame is provided with several buffer columns.

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