Vertical efficient self-suction and double-suction pump

Abstract

The utility model relates to the technical field of transmission equipment, in particular to a vertical efficient self-suction double-suction pump which comprises a double-suction pump body, a first water storage tank, a second water storage tank, a first water inlet valve and a second water inlet valve. The bottom of an inner cavity of the first water storage tank communicates with the input end of the double suction pump body, and a water inlet of the first water storage tank communicates with the top of the inner cavity of the first water storage tank and is connected with an external water source. The bottom of an inner cavity of the second water storage tank is connected with the output end of the double suction pump body, and a water outlet of the second water storage tank is communicated with the top of the inner cavity of the second water storage tank and connected with an external water outlet pipe. The first water inlet valve and the second water inlet valve are fixedly arranged on the first water storage tank and the second water storage tank respectively and communicated with the tops of inner cavities of the first water storage tank and the second water storage tank respectively, and the first water inlet valve and the second water inlet valve are connected with a water source respectively. The utility model overcomes the defect of high energy consumption in the prior art, and has the characteristic of high transmission efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission equipment, in particular to a vertical high-efficiency self-priming double-suction pump. Background Art

[0002] As an important form of centrifugal pump, double-suction pump is widely used in engineering. The impeller of this type of pump is actually composed of two back-to-back impellers. The water flowing out of the impellers flows into a volute, which has the characteristics of high head and large flow.

[0003] In the prior art, a Chinese utility model patent with authorization announcement number CN202048026U discloses an energy-saving self-priming vertical double-suction pump. During the operation of this equipment, it is necessary to first start the self-priming device to quickly evacuate the gas in the inner cavity of the double-suction pump body and the water inlet pipeline through the self-priming device, resulting in high energy consumption. Utility Model Content

[0004] In order to solve the technical problem of high energy consumption of the self-priming vertical double-suction pump in the prior art, the embodiment of the utility model provides a vertical high-efficiency self-priming double-suction pump, comprising: a double-suction pump body, a first water storage tank, a second water storage tank, a first water inlet valve and a second water inlet valve;

[0005] The first water storage tank is fixedly arranged on the outside of the double-suction pump body, the bottom of the inner cavity of the first water storage tank is connected to the input end of the double-suction pump body, the water inlet of the first water storage tank is connected to the top of the inner cavity of the first water storage tank, and the water inlet is connected to an external water source through a water inlet pipe;

[0006] The second water storage tank is fixedly arranged on the outside of the double-suction pump body, the bottom of the inner cavity of the second water storage tank is connected to the output end of the double-suction pump body, the water outlet of the second water storage tank is communicated with the top of the inner cavity of the second water storage tank, and the water outlet is connected to the external water outlet pipe;

[0007] The first water inlet valve is fixedly arranged on the first water storage tank, the first water inlet valve is communicated with the top of the inner cavity of the first water storage tank, and the first water inlet valve is connected to the water source;

[0008] The second water inlet valve is fixedly arranged on the second water storage tank, the second water inlet valve is communicated with the top of the inner cavity of the second water storage tank, and the second water inlet valve is connected to the water source.

[0009] Furthermore, the water source is located on the upper side of the double-suction pump body.

[0010] Furthermore, the device also includes: an exhaust valve, which is fixedly arranged on the second water storage tank and is connected to the top of the inner cavity of the second water storage tank.

[0011] Furthermore, the device also includes: a first jet tube, the first jet tube is fixedly arranged inside the first water storage tank, the output end of the first jet tube is connected to the input end of the double-suction pump body, and the input end of the first jet tube is located at the top of the inner cavity of the first water storage tank.

[0012] Furthermore, the device further comprises: an ejector, a second ejection tube and a control valve;

[0013] The ejector is arranged inside the first water storage tank, and the output end of the ejector is connected to the input end of the first ejector tube;

[0014] The second jet tube is arranged on the first water storage tank and the second water storage tank, the output end of the second jet tube is connected to the input end of the ejector, and the input end of the second jet tube is communicated with the bottom of the inner cavity of the second water storage tank;

[0015] The control valve is arranged on the second jet tube and is used for controlling the on and off of the second jet tube.

[0016] Furthermore, the device also includes: a maintenance hole and a manhole cover;

[0017] A maintenance hole is provided on the top of the first water storage tank, and the maintenance hole is communicated with the top of the inner cavity of the first water storage tank;

[0018] The manhole cover is arranged on the maintenance hole and is used for closing the maintenance hole.

[0019] Furthermore, the double-suction pump body comprises: a pump body, a drive assembly, a transmission assembly and an impeller;

[0020] The input end of the pump body is communicated with the bottom of the inner cavity of the first water storage tank, and the output end of the pump body is communicated with the bottom of the inner cavity of the second water storage tank;

[0021] The impeller is arranged in the inner cavity of the pump body;

[0022] The transmission assembly is arranged on the pump body and is connected to the impeller to drive the impeller to rotate;

[0023] The driving assembly is arranged on the pump body and is connected to the transmission assembly for driving the transmission assembly to operate.

[0024] Furthermore, the driving assembly includes: an assembly bracket and a motor;

[0025] The assembly bracket is fixedly arranged on the top of the pump body;

[0026] The motor is fixed on the assembly bracket and is connected to the transmission component to drive the transmission component to operate.

[0027] Furthermore, the transmission assembly includes: a mounting hole, a pump cover and a transmission shaft;

[0028] The assembly hole is opened on the top of the pump body, and the assembly hole passes through the outer wall of the pump body and communicates with the inner cavity of the pump body;

[0029] The pump cover is fixedly assembled in the assembly hole;

[0030] The transmission shaft is arranged on the pump cover, the bottom end of the transmission shaft is fixedly connected to the impeller, and the top end of the transmission shaft is connected to the driving end of the motor to drive the impeller to rotate.

[0031] Furthermore, a mechanical sealing device is provided at the rotational connection between the transmission shaft and the pump cover.

[0032] The vertical high-efficiency self-priming double-suction pump according to the embodiment of the utility model has the following beneficial effects:

[0033] 1. This device is provided with a first water inlet valve and a second water inlet valve on the first water storage tank and the second water storage tank respectively, and connects them to a water source. By opening the first water inlet valve and the second water inlet valve, aqueous solution is injected into the inner cavity of the water storage tank and the second water storage tank to discharge the air in the inner cavity of the pump body. There is no need to set up a separate power source to extract the air in the inner cavity of the pump body, thereby solving the defect of high energy consumption in the existing technology.

[0034] 2. This device improves the transmission efficiency of the device by connecting the first water storage tank and the second water storage tank through the first jet tube, the ejector and the second jet tube.

[0035] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of an assembly according to an embodiment of the present utility model;

[0037] Figure 2 This is a schematic diagram of the assembly of a double-suction pump body according to an embodiment of the present utility model.

[0038] Description of the accompanying drawings:

[0039] 1-double-suction pump body, 11-pump body, 121-assembly bracket, 122-motor, 131-pump cover, 132-drive shaft, 14-impeller, 15-mechanical sealing device, 2-first water storage tank, 21-water inlet, 22-first water inlet valve, 3-second water storage tank, 31-water outlet, 32-second water inlet valve, 33-exhaust valve, 4-first jet pipe, 5-ejector, 6-second jet pipe, 61-control valve, 7-manhole cover. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0041] The aforementioned and other technical aspects, features, and functions of the present invention will be more clearly understood in the following detailed description of the embodiments with reference to the accompanying drawings. Directional terms such as up, down, left, right, front, and back, used in the following embodiments, are merely references to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes only and are not intended to limit the present invention. Furthermore, identical reference numerals throughout the embodiments denote identical components.

[0042] like Figure 1 As shown, the vertical high-efficiency self-priming double-suction pump of the embodiment of the present invention includes: a double-suction pump body 1, a first water storage tank 2, a second water storage tank 3, a first water inlet valve 22 and a second water inlet valve 32.

[0043] Specifically, if Figure 1 As shown, the first water storage tank 2 is fixedly arranged on the outside of the double-suction pump body 1, the bottom of the inner cavity of the first water storage tank 2 is connected to the input end of the double-suction pump body 1, the water inlet 21 of the first water storage tank 2 is connected to the top of the inner cavity of the first water storage tank 2, and the water inlet 21 is connected to the external water source through a water inlet pipe with an electric control valve (not shown in the figure). In this embodiment, the water source includes but is not limited to a water tank storing an aqueous solution; the second water storage tank 3 is fixedly arranged on the outside of the double-suction pump body 1, and the bottom of the inner cavity of the second water storage tank 3 is connected to the output end of the double-suction pump body 1. The water outlet 31 of the second water storage tank 3 is connected to the top of the inner cavity of the second water storage tank 3, and the water outlet 31 is connected to an external water outlet pipe (not shown in the figure); the first water inlet valve 22 is fixedly provided on the first water storage tank 2, and the first water inlet valve 22 is connected to the top of the inner cavity of the first water storage tank 2, and the first water inlet valve 22 is connected to the water source through the water inlet pipe; the second water inlet valve 32 is fixedly provided on the second water storage tank 3, and the second water inlet valve 32 is connected to the top of the inner cavity of the second water storage tank 3, and the second water inlet valve 32 is connected to the water source through the water inlet pipe.

[0044] Further, if Figure 1 As shown, the water source is located on the upper side of the double-suction pump body 1.

[0045] Further, if Figure 1 As shown, the device further includes: an exhaust valve 33 , which is fixedly arranged on the second water storage tank 3 , and the exhaust valve 33 is communicated with the top of the inner cavity of the second water storage tank 3 .

[0046] Further, if Figure 1 As shown, the device further includes: a first jet tube 4, which is fixedly arranged inside the first water storage tank 2, and the output end of the first jet tube 4 is connected to the input end of the double-suction pump body 1, and the input end of the first jet tube 4 is located at the top of the inner cavity of the first water storage tank 2.

[0047] Further, if Figure 1 As shown, the device further includes: an ejector 5, a second jet tube 6 and a control valve 61; the ejector 5 is arranged inside the first water storage tank 2, and the output end of the ejector 5 is connected to the input end of the first jet tube 4; the second jet tube 6 is arranged on the first water storage tank 2 and the second water storage tank 3, the output end of the second jet tube 6 is connected to the input end of the ejector 5, and the input end of the second jet tube 6 is connected to the bottom of the inner cavity of the second water storage tank 3; the control valve 61 is arranged on the second jet tube 6 for controlling the on and off of the second jet tube 6.

[0048] Further, if Figure 1 As shown, the device further includes: a maintenance hole (not shown in the figure) and a manhole cover 7; the maintenance hole is opened at the top of the first water storage tank 2, and the maintenance hole is connected to the top of the inner cavity of the first water storage tank 2; the manhole cover 7 is set on the maintenance hole, used to close the maintenance hole, and the user can repair the original parts located inside the first water storage tank 2 by opening the manhole cover 7.

[0049] Further, if Figure 1 、 2 As shown, the double-suction pump body 1 includes: a pump body 11, a drive assembly, a transmission assembly and an impeller 14; the input end of the pump body 11 is connected to the bottom of the inner cavity of the first water storage tank 2, and the output end of the pump body 11 is connected to the bottom of the inner cavity of the second water storage tank 3. Preferably, the first jet tube 4 is a multi-way tube, and the input end of the first jet tube 4 is connected to the output end of the ejector 5. The multiple output ends of the first jet tube 4 all pass through the port of the input end of the pump body 11 and extend into the inner cavity of the pump body 11; the impeller 14 is arranged in the inner cavity of the pump body 11; the transmission assembly is arranged on the pump body 11, and the transmission assembly is connected to the impeller 14 for driving the impeller 14 to rotate; the drive assembly is arranged on the pump body 11, and the drive assembly is connected to the transmission assembly for driving the transmission assembly to operate.

[0050] Further, if Figure 1 、 2 As shown, the driving assembly includes: an assembly bracket 121 and a motor 122; the assembly bracket 121 is fixedly arranged on the top of the pump body 11; the motor 122 is fixedly arranged on the assembly bracket 121, and the motor 122 is connected to the transmission assembly for driving the transmission assembly to operate.

[0051] Further, if Figure 1 、 2As shown, the transmission assembly includes: an assembly hole (not shown in the figure), a pump cover 131 and a transmission shaft 132; the assembly hole is opened at the top of the pump body 11, and the assembly hole passes through the outer wall of the pump body 11 and is connected with the inner cavity of the pump body 11; the pump cover 131 is fixedly assembled in the assembly hole, and a sealing mechanism is provided at the connection between the pump cover 131 and the assembly hole, which is used to seal the sealing part between the pump cover 131 and the assembly hole; the transmission rotation is set on the pump cover 131, the bottom end of the transmission shaft 132 is fixedly connected to the impeller 14, and the top end of the transmission shaft 132 is connected to the driving end of the motor 122, which is used to drive the impeller 14 to rotate.

[0052] Further, if Figure 1 、 2 As shown, a mechanical sealing device 15 is provided at the rotation connection between the transmission shaft 132 and the pump cover 131 .

[0053] Before the equipment is operated, the first water inlet valve 22, the second water inlet valve 32 and the exhaust valve 33 are opened, and the aqueous solution in the water source is injected into the first water storage tank 2 and the second water storage tank 3 through the first water inlet valve 22 and the second water inlet valve 32 respectively, until the liquid level in the first water storage tank 2 rises to the water inlet 21 of the first water storage tank 2. The first water inlet valve 22 and the second water inlet valve 32 are managed to discharge the air in the inner cavity of the pump body 11. As the liquid level in the inner cavity of the first water storage tank 2 rises, positive pressure is generated in the inner cavity of the first water storage tank 2.

[0054] When the equipment is running, the motor 122 drives the transmission shaft 132 to rotate, and the transmission shaft 132 further drives the impeller 14 to rotate. The suction force generated by the pump body 11 during the rotation of the impeller 14 is used to transfer the aqueous solution in the first water storage tank 2 to the inner cavity of the second water storage tank 3. During this process, the pages in the second water storage tank 3 gradually rise, and the air in the second water storage tank 3 is discharged through the exhaust valve 33. A positive pressure is generated in the inner cavity of the second water storage tank 3. Part of the aqueous solution stored in the second water storage tank 3 is driven by pressure to flow back to the inner cavity of the pump body 11 through the second jet tube 6, the ejector 5 and the first jet tube 4 in sequence; during this process, a negative pressure is generated at the ejector 5, and the air at the top of the inner cavity of the first water storage tank 2 flows through the ejector 5, the first jet tube 4 and the pump body 11 in sequence, enters the second water transfer tank, and is finally discharged through the exhaust valve 33 to achieve self-priming.

[0055] Above, refer to Figure 1 、 2 The vertical high-efficiency self-priming double-suction pump according to the embodiment of the utility model is described, which has the following beneficial effects:

[0056] 1. This device is provided with a first water inlet valve and a second water inlet valve on the first water storage tank and the second water storage tank respectively, and connects them to a water source. By opening the first water inlet valve and the second water inlet valve, aqueous solution is injected into the inner cavity of the water storage tank and the second water storage tank to discharge the air in the inner cavity of the pump body. There is no need to set up a separate power source to extract the air in the inner cavity of the pump body, thereby solving the defect of high energy consumption in the existing technology.

[0057] 2. This device improves the transmission efficiency of the device by connecting the first water storage tank and the second water storage tank through the first jet tube, the ejector and the second jet tube.

[0058] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0059] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A vertical high-efficiency self-priming double-suction pump, characterized in that: It includes: a double-suction pump body, a first water storage tank, a second water storage tank, a first water inlet valve and a second water inlet valve; The first water storage tank is fixedly arranged on the outside of the double-suction pump body, the bottom of the inner cavity of the first water storage tank is communicated with the input end of the double-suction pump body, the water inlet of the first water storage tank is communicated with the top of the inner cavity of the first water storage tank, and the water inlet is connected to an external water source; The second water storage tank is fixedly arranged on the outside of the double-suction pump body, the bottom of the inner cavity of the second water storage tank is connected to the output end of the double-suction pump body, the water outlet of the second water storage tank is communicated with the top of the inner cavity of the second water storage tank, and the water outlet is connected to an external water outlet pipe; The first water inlet valve is fixedly mounted on the first water storage tank, the first water inlet valve is in communication with the top of the inner cavity of the first water storage tank, and the first water inlet valve is connected to the water source; The second water inlet valve is fixedly arranged on the second water storage tank, the second water inlet valve is communicated with the top of the inner cavity of the second water storage tank, and the second water inlet valve is connected to the water source.

2. The vertical high-efficiency self-priming double-suction pump according to claim 1, characterized in that: The water source is located on the upper side of the double-suction pump body.

3. The vertical high-efficiency self-priming double-suction pump according to claim 1, characterized in that: It also includes: an exhaust valve, which is fixedly arranged on the second water storage tank and is connected to the top of the inner cavity of the second water storage tank.

4. The vertical high-efficiency self-priming double-suction pump according to claim 1, characterized in that: It also includes: a first jet tube, which is fixedly arranged inside the first water storage tank, the output end of the first jet tube is connected to the input end of the double-suction pump body, and the input end of the first jet tube is located at the top of the inner cavity of the first water storage tank.

5. The vertical high-efficiency self-priming double-suction pump according to claim 4, characterized in that: It also includes: an ejector, a second ejection pipe and a control valve; The ejector is arranged inside the first water storage tank, and the output end of the ejector is connected to the input end of the first ejector tube; The second jet tube is arranged on the first water storage tank and the second water storage tank, the output end of the second jet tube is connected to the input end of the ejector, and the input end of the second jet tube is communicated with the bottom of the inner cavity of the second water storage tank; The control valve is arranged on the second jet tube and is used to control the on and off of the second jet tube.

6. The vertical high-efficiency self-priming double-suction pump according to claim 1, characterized in that: Also includes: maintenance holes and manhole covers; The maintenance hole is opened on the top of the first water storage tank, and the maintenance hole is connected to the top of the inner cavity of the first water storage tank; The manhole cover is arranged on the maintenance hole and is used to close the maintenance hole.

7. The vertical high-efficiency self-priming double-suction pump according to claim 1, characterized in that: The double-suction pump body comprises: a pump body, a drive assembly, a transmission assembly and an impeller; The input end of the pump body is communicated with the bottom of the inner cavity of the first water storage tank, and the output end of the pump body is communicated with the bottom of the inner cavity of the second water storage tank; The impeller is arranged in the inner cavity of the pump body; The transmission assembly is arranged on the pump body, and the transmission assembly is connected to the impeller to drive the impeller to rotate; The driving assembly is arranged on the pump body, and the driving assembly is connected to the transmission assembly for driving the transmission assembly to operate.

8. The vertical high-efficiency self-priming double-suction pump according to claim 7, characterized in that: The driving assembly includes: an assembly bracket and a motor; The assembly bracket is fixedly arranged on the top of the pump body; The motor is fixedly arranged on the assembly bracket, and the motor is connected to the transmission assembly to drive the transmission assembly to operate.

9. The vertical high-efficiency self-priming double-suction pump according to claim 8, characterized in that: The transmission assembly comprises: an assembly hole, a pump cover and a transmission shaft; The assembly hole is opened on the top of the pump body, and the assembly hole passes through the outer wall of the pump body and communicates with the inner cavity of the pump body; The pump cover is fixedly assembled in the assembly hole; The transmission shaft is arranged on the pump cover, the bottom end of the transmission shaft is fixedly connected to the impeller, and the top end of the transmission shaft is connected to the driving end of the motor for driving the impeller to rotate.

10. The vertical high-efficiency self-priming double-suction pump according to claim 9, characterized in that: A mechanical sealing device is provided at the rotation connection between the transmission shaft and the pump cover.

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