Single-stage single-suction centrifugal pump capable of automatically adding liquid

Abstract

The utility model aims to solve the problem of liquid adding of a single-stage single-suction centrifugal pump, and discloses an automatic liquid adding single-stage single-suction centrifugal pump, which comprises a single-stage single-suction centrifugal pump, support legs uniformly arranged at the bottom of the single-stage single-suction centrifugal pump, a water inlet pipe arranged at the water inlet end of the single-stage single-suction centrifugal pump, and a water outlet pipe arranged at the water outlet end of the single-stage single-suction centrifugal pump. A water outlet pipe is installed at the water outlet end of the single-stage single-suction centrifugal pump, a water storage box is fixedly installed on the upper side of the single-stage single-suction centrifugal pump, a connecting pipe is installed between the water storage box and a liquid inlet of the single-stage single-suction centrifugal pump, a flow dividing pipe is fixedly installed on the right side of the water inlet pipe, a liquid passing pipe is installed between the flow dividing pipe and the water inlet pipe, and a water tank is arranged below the flow dividing pipe. A water storage bowl is fixedly installed on the upper side of the sleeve bottle, and a first insertion pipe is inserted in the middle of the sleeve bottle in a penetrating mode. According to the single-stage single-suction centrifugal pump, through cooperation of the components in the flow dividing pipe, water flows upwards through pressure, water in the water pool is automatically pumped to a liquid adding opening of the single-stage single-suction centrifugal pump, and dry rotation of the single-stage single-suction centrifugal pump is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to single stage single suction centrifugal pump field especially relates to a single stage single suction centrifugal pump of automatic liquid feeding. BACKGROUND

[0002] Centrifugal pump refers to the pump that transports liquid by centrifugal force generated by impeller rotation. Centrifugal pump is mainly composed of impeller, pump body, pump shaft, bearing, sealing ring and packing gland. It is widely used in petrochemical industry, coal chemical industry and other chemical industries. The types of centrifugal pump can be divided into acid pump, alkali pump, clean water pump, slurry pump, etc. The main features include compact structure, wide flow and head range, uniform flow, stable operation, small vibration and low maintenance and repair cost. The working principle of centrifugal pump is that the impeller is driven to rotate by the pump shaft, and does work on the fluid between the blades. The fluid is thrown to the periphery from the center of the impeller by centrifugal force. Single stage single suction centrifugal pump adopts the most advanced hydraulic model, which is designed according to the performance parameters of IS type centrifugal pump and the unique structure combination of vertical pump, and strictly manufactured according to international ISO2858. The product adopts hard alloy mechanical sealing device for shaft seal, which has the characteristics of high efficiency, energy saving, reliable performance, convenient installation and use, etc.

[0003] The working principle of centrifugal pump is: the centrifugal force generated by the high-speed rotation of the blades of the impeller transports the medium to the outlet of the high-pressure end, so that a vacuum is formed at the suction port, and the medium is sucked in, and the cycle is repeated. If no water is filled (should be exactly said that the medium is filled), the centrifugal pump cannot work, not to mention the mechanical accident caused by friction and adhesion after dry running, which leads to the damage of pump equipment. Therefore, the manual of centrifugal pump will first indicate: strictly prohibit dry running. In simple terms: filling the pump is to remove the air in the impeller, so that the centrifugal pump can work.

[0004] However, the existing one is manually filled with water, which is troublesome, and how to automatically fill water is an important problem to be solved, therefore, an automatic liquid feeding single stage single suction centrifugal pump is invented to solve the water filling problem of single stage single suction centrifugal pump. Utility model content

[0005] The utility model aims at solving the problems of prior art, and provides a single stage single suction centrifugal pump of automatic liquid feeding.

[0006] The utility model is realized by the following technical scheme:

[0007] The utility model provides an automatic liquid feeding single-stage single-suction centrifugal pump, including single-stage single-suction centrifugal pump, the uniform leg of single-stage single-suction centrifugal pump is equipped at the bottom of single-stage single-suction centrifugal pump, the water inlet pipe of single-stage single-suction centrifugal pump is equipped at the water inlet end of single-stage single-suction centrifugal pump, the water outlet pipe of single-stage single-suction centrifugal pump is equipped at the water outlet end of single-stage single-suction centrifugal pump, the water storage box is fixedly installed on the upside of single-stage single-suction centrifugal pump, the connecting pipe is equipped between the water inlet of water storage box and single-stage single-suction centrifugal pump, the shunt pipe is fixedly installed on the right side of water inlet pipe, the liquid passage is equipped between shunt pipe and water inlet pipe, the water tank is arranged below shunt pipe, the bottle sleeve is sleeved in shunt pipe, the water storage bowl is fixedly installed on the upside of bottle sleeve, the first cannula is inserted in bottle sleeve, and the second cannula and the third cannula are arranged on the left side and the right side of first cannula respectively, and the second cannula and the third cannula are inserted into water tank.

[0008] As a preferred technical scheme of the utility model, a pipe is led out from the side of the water storage box, and the pipe is inserted into the water storage bowl.

[0009] As a preferred technical scheme of the utility model, the liquid passage is inserted into the bottle sleeve.

[0010] As a preferred technical scheme of the utility model, the third cannula is inserted into the water storage bowl, and the top of the third cannula is located at the lower fifth of the water storage bowl.

[0011] As a preferred technical scheme of the utility model, the top of the second cannula is located at the upper two-thirds of the bottle sleeve.

[0012] As a preferred technical scheme of the utility model, the bottom of the water tank is provided with an opening.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Through the arrangement of the components in the shunt pipe, water in the water tank can be pressed into the water storage box by pressure, so that water flows upward, and the automatic water feeding of the single-stage single-suction centrifugal pump is realized, and dry running of the single-stage single-suction centrifugal pump is prevented. Through the arrangement of the liquid passage, part of the water can be shunted into the bottle sleeve during the water pumping process of the single-stage single-suction centrifugal pump, so that the energy waste is reduced, the water in the bottle sleeve can be supplemented in time, and the stability of the single-stage single-suction centrifugal pump is improved, and the use process is more stable. Through the cooperation of the components in the shunt pipe, water in the water tank is automatically pumped to the liquid inlet of the single-stage single-suction centrifugal pump by pressure, and dry running of the single-stage single-suction centrifugal pump is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model.

[0016] Fig. 2 It is a structural schematic view of the utility model.

[0017] In the figure: 1, leg, 2, water storage box, 3, connecting pipe, 4, water outlet pipe, 5, single-stage single-suction centrifugal pump, 6, water inlet pipe, 7, first cannula, 8, liquid passage pipe, 9, shunt pipe, 10, second cannula, 11, water tank, 12, water storage bowl, 13, sleeve bottle, 14, third cannula. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figs. 1-2 The utility model provides a technical scheme:

[0020] A single-stage single-suction centrifugal pump with automatic liquid feeding, comprising a single-stage single-suction centrifugal pump 5, legs 1 evenly arranged at the bottom of the single-stage single-suction centrifugal pump 5, a water inlet pipe 6 arranged at the water inlet end of the single-stage single-suction centrifugal pump 5, a water outlet pipe 4 arranged at the water outlet end of the single-stage single-suction centrifugal pump 5, a water storage box 2 fixedly installed on the upper side of the single-stage single-suction centrifugal pump 5, a connecting pipe 3 arranged between the water storage box 2 and the liquid inlet of the single-stage single-suction centrifugal pump 5, a shunt pipe 9 fixedly installed on the right side of the water inlet pipe 6, a liquid passage pipe 8 arranged between the shunt pipe 9 and the water inlet pipe 6, a water tank 11 arranged below the shunt pipe 9, a sleeve bottle 13 sleeved in the shunt pipe 9, a water storage bowl 12 fixedly installed on the upper side of the sleeve bottle 13, a first cannula 7 inserted into the sleeve bottle 13, a second cannula 10 and a third cannula 14 arranged on the left and right sides of the first cannula 7 respectively, and the second cannula 10 and the third cannula 14 inserted into the water tank 11.

[0021] The water storage box 2 is provided with a pipe on the side surface, and the pipe is inserted into the water storage bowl 12.

[0022] The liquid passage pipe 8 is inserted into the sleeve bottle 13.

[0023] The third cannula 14 is inserted into the water storage bowl 12, and the top of the third cannula 14 is located at the lower fifth position of the water storage bowl 12.

[0024] The top of the second cannula 10 is located at the upper two-thirds position of the sleeve bottle 13.

[0025] The water tank 11 is provided with an opening at the bottom.

[0026] Working principle: at the beginning, first add water in the water storage box 2, the water will be connected to the single-stage single suction centrifugal pump 5 through the connecting pipe 3, realize the water injection of the single-stage single suction centrifugal pump 5, prevent dry running, when the single-stage single suction centrifugal pump 5 works, it will draw water through the water inlet pipe 6, part of the water will flow to the bottle sleeve 13 through the liquid pipe 8, with the continuous increase of the water in the bottle sleeve 13, it will pass through the pressure to the water tank 11 in the water to the bottle sleeve 13, finally through the first insertion pipe 7 to the water storage box 2, part of the water in the water storage box 2 will flow to the water storage bowl 12, then through the third insertion pipe 14 to the water tank 11, repeatedly, it will continuously add water to the water storage box 2 through the pressure, make the water in the water storage box 2 flow to the single-stage single suction centrifugal pump 5, prevent the single-stage single suction centrifugal pump 5 from dry running.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-priming single-stage single-suction centrifugal pump comprising a single-stage single-suction centrifugal pump (5), characterized in that: The single-stage single-suction centrifugal pump (5) is uniformly provided with supporting legs (1) at the bottom, is provided with an inlet pipe (6) at the water inlet end, is provided with an outlet pipe (4) at the water outlet end, is fixedly provided with a water storage box (2) on the upper side, is provided with a connecting pipe (3) between the water storage box (2) and the liquid inlet of the single-stage single-suction centrifugal pump (5), is fixedly provided with a shunt pipe (9) on the right side of the inlet pipe (6), is provided with a liquid passage pipe (8) between the shunt pipe (9) and the inlet pipe (6), is provided with a water tank (11) below the shunt pipe (9), is provided with a sleeve bottle (13) sleeved in the shunt pipe (9), is fixedly provided with a water storage bowl (12) on the upper side of the sleeve bottle (13), is provided with a first insertion pipe (7) penetrating through the middle of the sleeve bottle (13), is provided with a second insertion pipe (10) and a third insertion pipe (14) on the left and right sides of the first insertion pipe (7), and the second insertion pipe (10) and the third insertion pipe (14) are inserted into the water tank (11).

2. The single-stage single-suction centrifugal pump with automatic liquid feeding according to claim 1, characterized in that: The water storage box (2) is provided with a pipe on the side surface, and the pipe is inserted into the water storage bowl (12).

3. The single-stage single-suction centrifugal pump with automatic liquid feeding according to claim 1, characterized in that: The liquid passage pipe (8) is inserted into the sleeve bottle (13).

4. The single-stage single-suction centrifugal pump with automatic liquid feeding according to claim 1, characterized in that: The third insertion pipe (14) extends into the water storage bowl (12), and the top of the third insertion pipe (14) is located at the lower fifth position of the water storage bowl (12).

5. The single stage single suction centrifugal pump with automatic liquid feeding according to claim 1, characterized in that: The top of the second insertion pipe (10) is located at the upper two-thirds position of the sleeve bottle (13).

6. The single stage single suction centrifugal pump with automatic liquid feeding according to claim 1, characterized in that: The water tank (11) is provided with an opening at the bottom.

Images