A vacuum self-priming pump

Abstract

The utility model discloses a kind of vacuum self-priming pumps.The vacuum self-priming pump includes a pump body, a vacuum tank and a suction pipeline, the water suction pipe of the pump body is communicated with the lower part of the vacuum tank, the top of the suction pipeline is equipped with a check valve, the check valve is inserted into the upper part inside of the vacuum tank, and the bottom of the suction pipeline is equipped with a check valve and is inserted into a water pool, the check valve is configured to make the water in the water pool only flow from bottom to top.The vacuum self-priming pump in the utility model can shorten the self-priming time by the pre-priming effect of the vacuum tank, reduce the idle time of the pump to reduce energy consumption, avoid dry running to prolong the service life of the pump, and is especially suitable for occasions with long suction pipeline or frequent start-stop.

Description

Technical Field

[0001] This utility model relates to the field of pumps, and in particular to a vacuum self-priming pump. Background Technology

[0002] Self-priming, meaning the ability to automatically draw water, is a characteristic of some pump types. It refers to the pump's ability to automatically expel air from the suction pipe and fill with liquid upon startup without prior priming. The principle is that when the pump's suction pipe is filled with air, the negative pressure (vacuum) created during pump operation, combined with atmospheric pressure, draws up the water pressure from the suction pipe, which is lower than the pressure of the water in the suction pipe, and then discharges it from the pump's drain end. This process does not require pre-priming water. Self-priming avoids the risk of corrosive materials in conventional pumps and is widely used in water pumps, liquid pumps, and other fields. Pumps with self-priming capabilities are called self-priming pumps or self-closing pumps.

[0003] Traditional self-priming pumps generally have the following functional defects: 1. Multiple exhaust cycles are required, and the self-priming time is relatively long, generally taking several minutes; 2. The pump has a long idling time, resulting in high energy consumption; 3. Dry running often occurs, which reduces the service life of the pump; 4. Not suitable for applications requiring high self-priming speed and stability, such as those with long intake pipes or frequent start-stop cycles. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a vacuum self-priming pump that can shorten the self-priming time by utilizing the pre-suction effect of the vacuum tank, reduce the pump's idling time, lower energy consumption, and avoid dry running, thereby extending the pump's service life. It is particularly suitable for applications with long suction pipelines or frequent start-stop operations.

[0005] According to one aspect of the present invention, a vacuum self-priming pump is provided, comprising a pump body, a vacuum tank, and a suction pipe. The pump body's suction pipe is connected to the lower part of the vacuum tank. A check valve is installed at the top of the suction pipe, extending into the upper part of the vacuum tank. A one-way valve is installed at the bottom of the suction pipe and extends into a water tank. The one-way valve is configured to allow water in the water tank to flow only from bottom to top.

[0006] In some embodiments, both the pump body and the vacuum tank are mounted on a single base plate. The advantage is that the mounting method of the pump body and the vacuum tank is described.

[0007] In some embodiments, the base plate is mounted on the ground using mounting hardware. The advantage is that the mounting method of the base plate is further described.

[0008] In some embodiments, the water tank is located on the ground and its water level is lower than the pump's suction pipe. The advantage is that the arrangement of the water tank and the requirements for its installation are described.

[0009] In some embodiments, a mounting bracket is installed on the side of the base plate, and the mounting bracket is fixedly connected to the suction tubing. The advantage of this is that the mounting bracket can stabilize the suction tubing.

[0010] In some embodiments, an inclined check plate is installed at the end of the check valve. This is advantageous because the check plate prevents backflow of liquid or air. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a vacuum self-priming pump according to one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the relevant structure at the top of the suction tubing; Figure 3 for Figure 1 The diagram shows the relevant structure at the bottom of the suction line.

[0012] In the diagram: 1. Pump body; 2. Vacuum tank; 3. Suction pipe; 4. Pumping pipe; 5. Check valve; 6. One-way valve; 7. Water tank; 8. Base plate; 9. Mounting parts; 10. Ground; 11. Fixing frame; 12. Check plate. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] like Figure 1-3 As shown, the vacuum self-priming pump includes a pump body 1, the pump body 1 has a water suction pipe 4 connected to the lower part of a vacuum tank 2, and the upper part of the vacuum tank 2 is connected to a water pool 7 located below through a suction pipe 3.

[0015] Preferably, both the pump body 1 and the vacuum tank 2 are fixedly mounted on a base plate 8, and the base plate 8 is fixedly mounted on the ground 10 by multiple screws or other mounting parts 9 (shown as one in the figure).

[0016] In addition, the water tank 7 is set on the ground 10, and its water surface is at most level with the ground 10, and lower than the water pumping pipe 4 of the pump body 1.

[0017] A check valve 5 is installed at the top of the suction pipe 3, and the check valve 5 extends into the upper part of the vacuum tank 2. Figure 2 As shown, an inclined check plate 12 is installed at the end of the check valve 5 to prevent liquid or air from flowing back.

[0018] like Figure 3 As shown, the bottom of the suction pipe 3 extends into the water tank 7, and a one-way valve 6 is installed at the bottom of the suction pipe 3 so that the water in the water tank 7 can only flow upward and will not flow backward.

[0019] Preferably, a fixing bracket 11 is installed on the side of the base plate 8. The fixing bracket 11 is fixedly connected to the suction pipe 3 and can fix the suction pipe 3.

[0020] When in use, this vacuum self-priming pump can achieve rapid self-priming by utilizing the pre-suction effect of the vacuum tank 2. Furthermore, due to the airtightness of the vacuum tank 2 and the presence of the check valve 5, it can prevent liquid or air backflow, keeping the suction pipe 3 full of liquid, and eliminating the need for re-venting when starting up next time.

[0021] Therefore, the vacuum self-priming pump of this utility model has the following beneficial effects: 1. Shorten self-priming time: By utilizing the pre-suction effect of the vacuum tank, multiple cycles of venting can be avoided, reducing the self-priming time to a few seconds to tens of seconds; 2. Energy saving: It can reduce the pump's idling time and reduce energy consumption; 3. Protects the pump body: Prevents dry running and extends the pump's service life; 4. Wide range of applications: Especially suitable for situations where the inhalation tubing is long or where there are frequent start-stop cycles.

[0022] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A vacuum self-priming pump, characterized in that: It includes a pump body (1), a vacuum tank (2) and a suction pipe (3). The pump body (1) has a water suction pipe (4) connected to the lower part of the vacuum tank (2). A check valve (5) is installed at the top of the suction pipe (3) and extends into the upper part of the vacuum tank (2). A one-way valve (6) is installed at the bottom of the suction pipe (3) and extends into a water tank (7). The one-way valve (6) is configured to allow water in the water tank (7) to flow only from bottom to top.

2. A vacuum self-priming pump according to claim 1, characterized in that: Both the pump body (1) and the vacuum tank (2) are mounted on a base plate (8).

3. A vacuum self-priming pump according to claim 2, characterized in that: The base plate (8) is mounted on the ground (10) by the mounting component (9).

4. A vacuum self-priming pump according to claim 3, characterized in that: The water tank (7) is located on the ground (10) and its water level is lower than the pumping pipe (4) of the pump body (1).

5. A vacuum self-priming pump according to claim 2, characterized in that: A fixing bracket (11) is installed on the side of the base plate (8), and the fixing bracket (11) is fixedly connected to the suction pipe (3).

6. A vacuum self-priming pump according to claim 1, characterized in that: An inclined check plate (12) is installed at the end of the check valve (5).

Images