Automatic switching liquid reciprocating conveying system

Abstract

An automatic switching liquid reciprocating conveying system comprises a first container, a second container, a first pipeline set, a second pipeline set and a water pump. The first pipeline set comprises a first tee joint, a second tee joint, a first electromagnetic valve and a second electromagnetic valve. And the second pipeline group comprises a third tee joint, a fourth tee joint, a third electromagnetic valve and a fourth electromagnetic valve. The water pump comprises a pump body, a liquid outlet and a liquid inlet. By arranging the first tee joint and the fourth tee joint, the first pipeline set and the second pipeline set are communicated with each other. The communication parts between the first tee joint, the second tee joint, the third tee joint and the fourth tee joint and the water pump are controlled through PLC equipment, so that liquid can be pumped back and forth between the first container and the second container only through the single water pump, and an inlet and an outlet of the water pump do not need to be changed or another water pump capable of flowing in the reverse direction does not need to be installed. The capital and time cost is reduced, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transportation, in particular to an automatically switched liquid reciprocating transportation system. Background Art

[0002] In real life and production, we often use pumps to pump various liquids from container A to container B, and sometimes we need to pump them from container B to container A in the opposite direction, such as pumping water from a hot water tank to a cold water tank, and then pumping cold water from a cold water tank to a hot water tank. Because conventional water pumps are directional and have the characteristics of directional flow. When the water pump is working, the liquid always flows from the inlet to the outlet. Therefore, when the flow direction of the liquid needs to be changed, it is necessary to change the water pipes at the inlet and outlet of the water pump, or install another water pump with the opposite flow direction, which will undoubtedly increase the investment, time cost and site.

[0003] In Chinese patent CN201810715023.9, a water pump housing is disclosed in a bidirectional self-priming water pump, in which a control circuit board, a control button, a battery, a single suction water pump assembly and an inlet and outlet water switching device are installed. The water pump housing includes a main body surface shell and a main body bottom shell. The main body surface shell and the main body bottom shell are assembled with each other. The control circuit board, the control button, and the battery are installed in the main body surface shell. The battery is connected to the control circuit board, and the control circuit board is connected to the single suction water pump assembly in one way and the inlet and outlet water switching device in another way. The inlet and outlet soft water pipes are fixed on the main body bottom shell and connected to the inlet and outlet water switching device.

[0004] When you need to use it, turn on the power first. When you need to drain water to the left, press the left drainage button. After receiving the command, the control circuit board transmits a signal to the switching motor to rotate 180 degrees to move the switching component slider, and then the control circuit sends a signal to the one-way suction pump to start the left drainage function. When you need to drain water to the right, press the right drainage button. After receiving the command, the control circuit board transmits a signal to the switching motor to rotate 180 degrees to move the switching component slider, and then the control circuit sends a signal to the one-way suction pump to start the right drainage function. The two-way suction and drainage functions are realized through simple operations.

[0005] However, the above solution is only applicable to smaller equipment with more electronic control components, complex structure and poor stability, and is not suitable for medium and large equipment. If the existing water pump structure is modified as above to achieve the purpose of pumping liquid back and forth between two containers, a lot of development costs will be consumed. Utility Model Content

[0006] In view of this, the utility model provides an automatically switched liquid reciprocating delivery system to solve the above technical problems.

[0007] An automatically switched liquid reciprocating delivery system comprises a first container, a second container, a first pipe group connecting the first container and the second container, a second pipe group connecting the first container and the second container, and a water pump connected to the first pipe group, one end of the first pipe, and the second pipe group, respectively. The first pipe group comprises a first tee connected to the first container and the second pipe group, respectively, a second tee connected to the first tee, the second pipe group, and the water pump, respectively, a first solenoid valve connected to the first tee and the second tee at both ends, respectively, and a second solenoid valve connected to the second tee and the second pipe group at both ends. The second pipe group comprises a third tee connected to the first tee, the second container, and the water pump, respectively, and a fourth tee connected to the second solenoid valve, the third tee, and the second container, respectively. A third solenoid valve connected to the first tee and the third tee at both ends, respectively, and a fourth solenoid valve connected to the third tee and the fourth tee at both ends. The water pump comprises a pump body, a liquid outlet arranged on the pump body, and a liquid inlet arranged on the pump body. The water pump pumps the liquid to reciprocate between the first container and the second container.

[0008] Furthermore, the first pipeline group and the second pipeline group are connected to each other.

[0009] Furthermore, the first solenoid valve and the second solenoid valve are in a closed state when power is off.

[0010] Furthermore, the first solenoid valve and the second solenoid valve are two-way valves.

[0011] Furthermore, the third solenoid valve and the fourth solenoid valve are two-way valves.

[0012] Further, the liquid outlet is communicated with the second tee, and the liquid inlet is communicated with the third tee.

[0013] Furthermore, when the first container is transported into the second container, the third solenoid valve and the second solenoid valve are both opened, and the first solenoid valve and the fourth solenoid valve are both closed.

[0014] Furthermore, when the second container is transported into the first container, the fourth solenoid valve and the first solenoid valve are both opened, and the second solenoid valve and the third solenoid valve are both closed.

[0015] Compared with the prior art, the automatically switched liquid reciprocating delivery system provided by the utility model connects the first pipeline group and the second pipeline group to each other by setting the first three-way and the fourth three-way. The first solenoid valve and the second solenoid valve are set to control the on-off of the first pipeline group. The third solenoid valve and the fourth solenoid valve are set to control the on-off of the second pipeline group. The connecting parts between the first, second, third, and fourth three-way and the water pump are controlled by a PLC device, so that only a single water pump is needed to pump liquid back and forth between the first container and the second container, without changing the inlet and outlet of the water pump or installing another reverse flow water pump, which reduces capital and time costs and reduces site occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a structural schematic diagram of an automatically switched liquid reciprocating conveying system.

[0017] Figure 2 for Figure 1 A flow diagram of liquid transported from a first container to a second container in an automatically switched liquid reciprocating transport system.

[0018] Figure 3 for Figure 1 A flow diagram of liquid transported from a second container to a first container in an automatically switched liquid reciprocating transport system. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0020] like Figure 1 As shown, it is a schematic diagram of the structure of an automatically switched liquid reciprocating delivery system provided by the utility model. The automatically switched liquid reciprocating delivery system includes a first container 10, a second container 20, a first pipe group 30 connecting the first container 10 and the second container 20, a second pipe group 40 connecting the first container 10 and the second container 20, and a water pump 50 connected to the first pipe group 30 and the second pipe group 40 respectively. It can be imagined that the automatically switched liquid reciprocating delivery system also includes some other functional structures, such as signal connection lines, electrical connection components, and control modules, etc., which are well known to those skilled in the art and will not be repeated here.

[0021] The water pump 50 includes a pump body 51, a liquid outlet 52 disposed on the pump body 51, and a liquid inlet 53 disposed on the pump body 51. The water pump 50 is prior art and will not be described in detail herein.

[0022] The pump body 51 is used to pump liquid back and forth between the first container 10 and the second container 20 .

[0023] The first container 10 and the second container 20 are both used to contain liquids, such as water, oil, etc., and they can be containers such as cans or barrels.

[0024] The first pipeline group 30 and the second pipeline group 40 are connected to each other to form a circulation pipeline. The first pipeline group 30 includes a first tee 31 connected to the first container 10 and the second pipeline group 40, a second tee 32 connected to the first tee 31, the second pipeline group 40, and the water pump 50, a first solenoid valve 33 with two ends connected to the first tee 31 and the second tee 32, and a second solenoid valve 34 with two ends connected to the second tee 32 and the second pipeline group 40. It can be understood that the elements connecting the first tee 31, the second tee 32, the first solenoid valve 33, and the second solenoid valve 34 are also pipelines, which can be thought of by those skilled in the art and will not be described one by one here.

[0025] The first interface of the first three-way connection 31 is in communication with the first container 10 , and the second interface of the first three-way connection 31 is in communication with the first solenoid valve 33 . The third interface of the first three-way connection 31 is in communication with the second pipeline group 40 .

[0026] The first interface of the second three-way connection 32 is communicated with the first electromagnetic valve 33, and the second interface of the second three-way connection 32 is communicated with the second electromagnetic valve 34. The third interface of the second three-way connection 32 is communicated with the liquid outlet 52 of the water pump 50. The first three-way connection 31 and the second three-way connection 32 are both prior art, so they are not described here in detail.

[0027] The first solenoid valve 33 is disposed between the first three-way connection 31 and the second three-way connection 32. One end of the first solenoid valve 33 is communicated with the second interface of the first three-way connection 31, and the other end of the first solenoid valve 33 is communicated with the first interface of the second three-way connection 32. The first solenoid valve 33 controls the on-off of the pipeline between the first three-way connection 31 and the second three-way connection 32.

[0028] The second solenoid valve 34 is disposed between the second three-way connection 32 and the second pipeline group 40. One end of the second solenoid valve 34 is in communication with the second interface of the second three-way connection 32, and the other end of the second solenoid valve 34 is in communication with the second pipeline 40. The flow direction of the liquid between the first pipeline group 30 and the second pipeline group 40 is controlled by the first solenoid valve 33 and the second solenoid valve 34. Both the first solenoid valve 33 and the second solenoid valve 34 are controlled by a PLC device (not shown), and the control method of the PLC device is the prior art and will not be described in detail herein.

[0029] The first solenoid valve 33 and the second solenoid valve 34 are in a closed state when the power is off, that is, in the power-off state, the solenoid valve remains in a closed state to prevent the flow of fluid, prevent the operator from operating incorrectly, and prevent the liquid in the first container 10 or the second container 20 from overflowing. When the power is on, they are in an open state, and the liquid can flow through. The first solenoid valve 33 and the second solenoid valve 34 can be a normally closed type, which is a prior art and will not be described in detail here.

[0030] The first solenoid valve 33 and the second solenoid valve 34 are bidirectional solenoid valves, which are convenient for coordinating the reciprocating delivery of liquid.

[0031] The second pipeline group 40 includes a third three-way 41 connected to the first three-way 31, the second container 20 and the water pump 50, a fourth three-way 42 connected to the second electromagnetic valve 34, the third three-way 41 and the second container 20, a third electromagnetic valve 43 connected to the first three-way 31 and the third three-way 41 at both ends, and a fourth electromagnetic valve 44 connected to the third three-way 41 and the fourth three-way 42 at both ends. It can be understood that the elements connecting the third three-way 41, the fourth three-way 42, the third electromagnetic valve 43, and the fourth electromagnetic valve 44 are also pipelines, which can be thought of by those skilled in the art and will not be described one by one here.

[0032] The first interface of the third three-way 41 is connected to the third solenoid valve 43, and the second interface of the third three-way 41 is connected to the fourth solenoid valve 44. The third interface of the third three-way 41 is connected to the liquid inlet 53 of the water pump 50, which is the prior art and will not be described here.

[0033] The first interface of the fourth three-way port 42 is communicated with the fourth electromagnetic valve 45 , and the second interface of the fourth three-way port 42 is communicated with the second container 20 . The third interface of the fourth three-way port 42 is communicated with the second electromagnetic valve 34 .

[0034] The third solenoid valve 43 is disposed between the first three-way connection 31 and the third three-way connection 41. One end of the third solenoid valve 43 is connected to the first three-way connection 31, and the other end is connected to the first interface of the third three-way connection 32. The third solenoid valve 43 controls the on-off of the pipeline between the first three-way connection 31 and the third three-way connection 41.

[0035] The fourth solenoid valve 44 is disposed between the third three-way connection 41 and the fourth three-way connection 42. One end of the fourth solenoid valve 44 is communicated with the second interface of the third three-way connection 41, and the other end is communicated with the first interface of the fourth three-way connection 42. The flow direction of the liquid between the first pipeline group 30 and the second pipeline group 40 is controlled by the third solenoid valve 43 and the fourth solenoid valve 44. The third solenoid valve 43 and the fourth solenoid valve 44 are also controlled by a PLC device (not shown), and the control method of the PLC device is the existing technology and will not be repeated here.

[0036] The third solenoid valve 43 and the fourth solenoid valve 44 are in a closed state when the power is off, that is, in the power-off state, the solenoid valve remains in a closed state to prevent the fluid from flowing, prevent the operator from operating incorrectly, and prevent the liquid in the first container 10 or the second container 20 from overflowing. When the power is on, they are in an open state, and the liquid can flow through. The third solenoid valve 43 and the fourth solenoid valve 44 are of a normally closed type, which is a prior art and will not be described in detail here.

[0037] The third solenoid valve 43 and the fourth solenoid valve 44 are two-way valves to facilitate reciprocating liquid delivery.

[0038] See also Figure 2 , when it is necessary to transfer the liquid in the first container 10 to the second container 20. The operator opens both the third solenoid valve 43 and the second solenoid valve 34. Close the first solenoid valve 33 to prevent the liquid from flowing back into the first container 10. Close the fourth solenoid valve 44 to prevent part of the liquid from flowing directly to the second container 20 without passing through the water pump 50, ensuring that the water flow direction is single, thereby improving the working efficiency of the water pump 50. Then, start the water pump 50. The liquid in the first container 10 enters the second container 20 through the first three-way valve 31, the third solenoid valve 43, the third three-way valve 41, the water pump 50, the second three-way valve 32, the second solenoid valve 34 and the fourth three-way valve 42.

[0039] See also Figure 3, when it is necessary to transfer the liquid in the second container 20 to the first container 10. The operator opens both the fourth solenoid valve 44 and the first solenoid valve 33. Close the second solenoid valve 34 to prevent the liquid from flowing back into the second container 20. Close the third solenoid valve 43 to prevent part of the liquid from flowing directly to the first container 10 without passing through the water pump 50, ensuring that the water flow direction is single, thereby improving the working efficiency of the water pump 50. Then, start the water pump 50. The liquid in the second container 20 enters the first container 10 through the fourth three-way valve 42, the fourth solenoid valve 44, the third three-way valve 41, the water pump 50, the second three-way valve 32, the first solenoid valve 33 and the first three-way valve 31.

[0040] It can be understood that the automatically switching liquid reciprocating conveying system also includes a control module, which may include multiple PLCs. Through program settings, the on and off of the first, second, third, and fourth solenoid valves 33, 34, 43, and 44 can be controlled according to the above requirements to complete the above tasks.

[0041] Compared with the prior art, the automatically switched liquid reciprocating delivery system provided by the utility model connects the first pipeline group 30 and the second pipeline group 40 to each other by setting the first three-way connection 31 and the fourth three-way connection 42. The first solenoid valve 33 and the second solenoid valve 34 are set to control the on-off of the first pipeline group 30. The third solenoid valve 43 and the fourth solenoid valve 44 are set to control the on-off of the second pipeline group 40. The connecting parts between the first, second, third, fourth three-way connections 31, 32, 41, 42 and the water pump 50 are controlled by a PLC device, so that only a single water pump 50 is needed to pump liquid back and forth between the first container 10 and the second container 20, without changing the inlet and outlet of the water pump 50 or installing another reverse flow water pump, which reduces capital and time costs and reduces site occupation.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. An automatically switched liquid reciprocating delivery system, characterized in that: The automatic switching liquid reciprocating delivery system comprises a first container, a second container, a first pipe group connecting the first container and the second container, a second pipe group connecting the first container and the second container, and a water pump connected to the first pipe group, one end of the first pipe, and the second pipe group, respectively. The first pipe group comprises a first tee connected to the first container and the second pipe group, respectively, a second tee connected to the first tee, the second pipe group, and the water pump, a first solenoid valve connected to the first tee and the second tee at both ends, respectively, and a second solenoid valve connected to the first tee and the second tee at both ends. a second solenoid valve connected to a second tee and the second pipeline group, the second pipeline group includes a third tee connected to the first tee, the second container and the water pump respectively, a fourth tee connected to the second solenoid valve, the third tee and the second container respectively, a third solenoid valve connected to the first tee and the third tee at both ends respectively, and a fourth solenoid valve connected to the third tee and the fourth tee at both ends respectively, the water pump includes a pump body, a liquid outlet arranged on the pump body, and a liquid inlet arranged on the pump body, and the water pump pumps liquid back and forth between the first container and the second container.

2. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: The first pipeline group and the second pipeline group are communicated with each other.

3. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: The first solenoid valve and the second solenoid valve are in a closed state when power is off.

4. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: The first solenoid valve and the second solenoid valve are two-way valves.

5. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: The third solenoid valve and the fourth solenoid valve are two-way valves.

6. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: The liquid outlet is communicated with the second three-way connection, and the liquid inlet is communicated with the third three-way connection.

7. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: When the first container is transferred into the second container, the third solenoid valve and the second solenoid valve are both opened, and the first solenoid valve and the fourth solenoid valve are both closed.

8. The automatic switching liquid reciprocating delivery system according to claim 1, characterized in that: When the second container is transferred into the first container, the fourth solenoid valve and the first solenoid valve are both opened, and the second solenoid valve and the third solenoid valve are both closed.

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