Material collecting device

Abstract

The utility model relates to the technical field of material receiving, in particular to a material receiving device which comprises a liquid material bag used for containing liquid materials and provided with a discharging port; the centrifugal pump is provided with an input port and an output port, and the input port is connected to the discharging port through a first pipeline; the negative pressure device is used for generating negative pressure; the liquid storage tank is used for storing a liquid material; the switching pipe set is connected with the output port of the centrifugal pump, the negative pressure device and the liquid storage tank, the switching pipe set is used for switching connection of the output port of the centrifugal pump between the negative pressure device and the liquid storage tank, liquid material residues in the liquid material bag can be reduced, the material collecting efficiency is improved, and liquid material waste is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material collecting, in particular to a material collecting device. BACKGROUND

[0002] In the related art, a liquid material bag is used to contain liquid material for transportation. When the liquid material is unloaded and collected by a material collecting device, a centrifugal pump is used as a material pumping pump. Before pumping, a pump priming operation is required, which is complicated. After the liquid material is pumped by the centrifugal pump, a large amount of residual material is left in the liquid material bag, which is a serious waste. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present application aims to provide a material collecting device.

[0004] According to the present application, a material collecting device is provided, which comprises:

[0005] a liquid material bag for containing liquid material, the liquid material bag having a discharging port;

[0006] a centrifugal pump having an input port and an output port, the input port being connected to the discharging port through a first pipeline;

[0007] a negative pressure device for generating negative pressure;

[0008] a liquid storage tank for storing liquid material;

[0009] a switching pipe group connected to the output port of the centrifugal pump, the negative pressure device and the liquid storage tank, the switching pipe group being used to switch the connection of the output port of the centrifugal pump between the negative pressure device and the liquid storage tank.

[0010] In one possible implementation, the switching pipe group comprises:

[0011] a second pipeline through which the negative pressure device is connected in communication with the output port of the centrifugal pump;

[0012] a first valve provided on the second pipeline, the first valve being used to control the communication and disconnection of the negative pressure device and the output port of the centrifugal pump;

[0013] a third pipeline, one end of the third pipeline being connected to the liquid storage tank, and the other end of the third pipeline being connected to the second pipeline between the first valve and the output port of the centrifugal pump;

[0014] a second valve provided on the third pipeline, the second valve being used to control the communication and disconnection of the liquid storage tank and the output port of the centrifugal pump.

[0015] In a possible implementation, the negative pressure device comprises a negative pressure tank and a negative pressure pump, an input port of the negative pressure tank is connected to the first valve, and an output port of the negative pressure tank is connected to the negative pressure pump.

[0016] In a possible implementation, the first valve is configured as an exhaust water-blocking valve.

[0017] In a possible implementation, the material collecting device further comprises a pressure sensor, which is arranged at an input end of the first valve and is configured to detect liquid pressure at the input end of the first valve.

[0018] In a possible implementation, the switching pipe group further comprises:

[0019] a third valve, which is arranged on the second pipe between the first valve and the third pipe.

[0020] In a possible implementation, the switching pipe group further comprises:

[0021] a fourth valve, which is arranged on the third pipe and is located between the second valve and an input port of the liquid storage tank.

[0022] In a possible implementation, the material outlet is arranged at a top of the liquid material bag.

[0023] In a possible implementation, the material collecting device further comprises:

[0024] a fifth valve, which is arranged on the first pipe and is configured to control communication and disconnection between the material outlet and an input port of the centrifugal pump.

[0025] In a possible implementation, the fifth valve has a flange part, and the fifth valve is connected to the first pipe through the flange part.

[0026] The application has the advantages that the centrifugal pump, the negative pressure device, the liquid storage tank and the switching pipe group are arranged, the switching pipe group can switch and connect the output port of the centrifugal pump between the negative pressure device and the liquid storage tank, thus when the liquid in the liquid bag is collected, the switching pipe group switches the output port of the centrifugal pump to be connected with the negative pressure device, and the output port of the centrifugal pump is disconnected with the liquid storage tank, the negative pressure device is started to pump out the liquid in the liquid bag and fill the centrifugal pump, so that the centrifugal pump pumps the liquid. When the centrifugal pump is filled with liquid, the negative pressure device stops running, the switching pipe group switches the output port of the centrifugal pump to be connected with the liquid storage tank, and the output port of the centrifugal pump is disconnected with the negative pressure device, and the centrifugal pump is started to pump the liquid into the liquid storage tank. When the liquid in the liquid bag cannot be pumped out by the centrifugal pump, the switching pipe group switches the output port of the centrifugal pump to be connected with the negative pressure device, and the output port of the centrifugal pump is disconnected with the liquid storage tank, and the negative pressure device is started to pump out the residual liquid in the liquid bag by negative pressure, so as to reduce the residual liquid, improve the collection efficiency and reduce the waste of liquid.

[0027] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application, the purposes and other advantages of the present application can be achieved and obtained by the structure specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings incorporated into the specification and forming a part of the specification show embodiments of the present application and, together with the description, serve to explain the principles of the present application. In these drawings, similar reference numerals are used to identify similar elements. The drawings in the following description are some embodiments of the present application, not all embodiments. For those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0029] Figure 1 It is a connection diagram of the liquid collection device according to an exemplary embodiment.

[0030] Reference numerals:

[0031] 1, liquid collection device; 2, liquid transport vehicle; 3, centrifugal pump; 4, negative pressure device; 41, negative pressure tank; 42, negative pressure pump; 5, liquid storage tank; 6, first valve; 7, second valve; 8, third valve; 9, fourth valve; 10, fifth valve; 11, first pipe; 12, second pipe; 13, third pipe. DETAILED DESCRIPTION

[0032] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the range of the present application. It should be noted that the embodiments in the present application and the feature vectors in the embodiments can be combined with each other in any manner without conflict.

[0033] In the related art, a liquid bag is usually used to contain liquid for transportation, and a material collecting device is used to unload and collect the liquid. The centrifugal pump is used as a material pumping pump in the material collecting device, and a pump priming operation is required before pumping, which is complicated. After the liquid is pumped by the centrifugal pump, a large amount of residual liquid is left in the liquid bag, which is a serious waste.

[0034] To solve the above problems, the present application provides a material collecting device. The material collecting device comprises a liquid bag, a centrifugal pump, a negative pressure device, a liquid storage tank, and a switching pipe group. The liquid bag is used to contain liquid. The liquid bag has a discharging port. The centrifugal pump has an input port and an output port. The input port of the centrifugal pump is connected to the discharging port through a first pipe. The negative pressure device is used to generate negative pressure. The liquid storage tank is used to store liquid. The switching pipe group is connected to the output port of the centrifugal pump, the negative pressure device, and the liquid storage tank. The switching pipe group is used to switch the connection of the output port of the centrifugal pump between the negative pressure device and the liquid storage tank.

[0035] When the centrifugal pump needs to be primed, the switching pipe group switches the output port of the centrifugal pump to be connected to the negative pressure device. After the negative pressure device is started to pump out the liquid in the liquid bag and fill the centrifugal pump, the switching pipe group switches the output port of the centrifugal pump to be connected to the liquid storage tank, and the centrifugal pump is started to pump the liquid into the liquid storage tank. When the liquid in the liquid bag cannot be pumped out by the centrifugal pump, the switching pipe group switches the output port of the centrifugal pump to be connected to the negative pressure device, and the output port of the centrifugal pump is disconnected from the liquid storage tank. The negative pressure device is started to pump out the residual liquid in the liquid bag by negative pressure, thereby reducing the residual liquid and improving the efficiency of collecting the liquid. When the negative pressure device is started, the output port of the centrifugal pump is disconnected from the liquid storage tank, which can prevent the liquid in the liquid storage tank from flowing out of the liquid storage tank under the action of negative pressure.

[0036] An exemplary embodiment of the present application provides a material collecting device 1, as shown in Figure 1 The material collecting device 1 comprises a liquid bag, a centrifugal pump 3, a negative pressure device 4, a liquid storage tank 5, and a switching pipe group.

[0037] In some embodiments, the liquid bag is used to contain liquid. The liquid bag has a discharging port.

[0038] For example, the liquid bag is placed in the liquid transport vehicle 2, and the liquid is stored in the tank of the liquid transport vehicle 2 through the liquid bag when the liquid transport vehicle 2 is transporting the liquid.

[0039] In some embodiments, the centrifugal pump 3 has an input port and an output port, and the discharge port is connected to the input port of the centrifugal pump 3 through the first pipeline 11. For example, one end of the first pipeline 11 is connected to the discharge port, and the other end of the first pipeline 11 is connected to the input port of the centrifugal pump 3, and the liquid can flow through the first pipeline 11 to the centrifugal pump 3 through the discharge port.

[0040] In some embodiments, the negative pressure device 4 is used to generate negative pressure. The liquid storage tank 5 is used to store the liquid. The switching pipe group is connected to the output port of the centrifugal pump 3, the negative pressure device 4 and the liquid storage tank 5, and is used to switch the connection of the output port of the centrifugal pump 3 between the negative pressure device 4 and the liquid storage tank 5.

[0041] For example, the switching pipe group can be manually controlled to connect the output port of the centrifugal pump 3 to the negative pressure device 4 or to connect the output port of the centrifugal pump 3 to the liquid storage tank 5. When the output port of the centrifugal pump 3 is connected to the negative pressure device 4, the output port of the centrifugal pump 3 is disconnected from the liquid storage tank 5. When the output port of the centrifugal pump 3 is connected to the liquid storage tank 5, the output port of the centrifugal pump 3 is disconnected from the negative pressure device 4.

[0042] When collecting the liquid in the liquid bag, the centrifugal pump 3 in the collection device 1 needs to be primed first. The switching pipe group switches the output port of the centrifugal pump 3 to be connected to the negative pressure device 4, and the output port of the centrifugal pump 3 is disconnected from the liquid storage tank 5, and the negative pressure device 4 is started to pump out the liquid in the liquid bag and fill the centrifugal pump 3, so as to fill the centrifugal pump 3 with liquid, so as to facilitate the centrifugal pump 3 to pump and transport the liquid. After the centrifugal pump 3 is filled with liquid, the negative pressure device 4 stops running, the switching pipe group switches the output port of the centrifugal pump 3 to be connected to the liquid storage tank 5, and the output port of the centrifugal pump 3 is disconnected from the negative pressure device 4, and the centrifugal pump 3 is started to pump the liquid into the liquid storage tank 5. When the liquid in the liquid bag cannot be pumped out by the centrifugal pump 3, the switching pipe group switches the output port of the centrifugal pump 3 to be connected to the negative pressure device 4, and the output port of the centrifugal pump 3 is disconnected from the liquid storage tank 5, and the negative pressure device 4 is started to pump out the residual liquid in the liquid bag by negative pressure, thereby reducing the liquid residue, improving the collection efficiency, and reducing the liquid waste.

[0043] When the output port of the centrifugal pump 3 is connected to the negative pressure device 4, the output port of the centrifugal pump 3 is disconnected from the liquid storage tank 5, and the negative pressure device 4 is started, which can prevent the liquid in the liquid storage tank 5 from flowing out of the liquid storage tank 5 under the action of negative pressure.

[0044] When the output port of the centrifugal pump 3 is connected to the liquid storage tank 5, the output port of the centrifugal pump 3 is disconnected from the negative pressure device 4, which can prevent the centrifugal pump 3 from pumping the liquid into the negative pressure device 4.

[0045] In some embodiments, the switching tube group comprises the second tube 12, the first valve 6, the third tube 13 and the second valve 7. The negative pressure device 4 is connected to the output of the centrifugal pump 3 through the second tube 12, so that when the negative pressure device 4 is connected to the output of the centrifugal pump 3, the negative pressure device 4 can be connected to the liquid bag through the second tube 12 and the centrifugal pump 3, and the negative pressure generated by the negative pressure device 4 can be transmitted to the liquid bag, so that the air in the liquid bag can be exhausted, the liquid in the liquid bag can be easily pumped out, the liquid residue can be reduced, and the efficiency of collecting the liquid can be improved.

[0046] The first valve 6 is arranged on the second tube 12, and the first valve 6 is used to control the connection and disconnection of the negative pressure device 4 and the output of the centrifugal pump 3. For example, when the first valve 6 is closed, the negative pressure device 4 is disconnected from the output of the centrifugal pump 3. When the first valve 6 is opened, the negative pressure device 4 is connected to the output of the centrifugal pump 3.

[0047] One end of the third tube 13 is connected to the liquid storage tank 5, and the other end of the third tube 13 is connected to the second tube 12 between the first valve 6 and the output of the centrifugal pump 3, and the third tube 13 is connected to the output of the centrifugal pump 3 through part of the second tube 12.

[0048] The second valve 7 is arranged on the third tube 13, and the second valve 7 is used to control the connection and disconnection of the liquid storage tank 5 and the output of the centrifugal pump 3. For example, when the second valve 7 is closed, the output of the centrifugal pump 3 is disconnected from the liquid storage tank 5. When the second valve 7 is opened, the output of the centrifugal pump 3 is connected to the liquid storage tank 5. The opening or closing of the first valve 6 does not affect the connection between the liquid storage tank 5 and the output of the centrifugal pump 3.

[0049] In some embodiments, the first valve 6 and / or the second valve 7 can be manually controlled valves, and the closing and opening of the first valve 6 and / or the second valve 7 can be manually controlled by artificial. For example, the second valve 7 can be arranged as a stop valve or a ball valve.

[0050] In some embodiments, the negative pressure device 4 comprises a negative pressure tank 41 and a negative pressure pump 42, the input of the negative pressure tank 41 is connected to the first valve 6, and the output of the negative pressure tank 41 is connected to the negative pressure pump 42. When the negative pressure pump 42 is opened, a negative pressure is formed in the negative pressure tank 41. When the negative pressure tank 41 is connected to the centrifugal pump 3, the negative pressure tank 41 is in communication with the liquid bag, and the liquid in the liquid bag flows through the first tube 11, the centrifugal pump 3 and the second tube 12 under the action of the negative pressure, so as to realize the priming of the centrifugal pump 3.

[0051] In some embodiments, the liquid collecting device 1 further comprises a pressure sensor, which is arranged at the input end of the first valve 6, and is used to detect the liquid pressure at the input end of the first valve 6. When the negative pressure device 4 is turned on, the liquid in the liquid bag flows through the pressure sensor under the action of the negative pressure through the first pipeline 11 and the second pipeline 12, and the pressure sensor transmits an electrical signal to the controller after detecting the liquid pressure, and the controller converts the electrical signal into a numerical signal and transmits it to the negative pressure pump 42, so as to control the negative pressure pump 42 to stop running.

[0052] In some embodiments, the pressure sensor transmits an electrical signal to the controller after detecting the liquid pressure, and the controller converts the electrical signal into a numerical signal and transmits it to the negative pressure pump 42 and the first valve 6 respectively, so as to control the negative pressure pump 42 to stop running and control the first valve 6 to close, which can prevent the liquid from flowing into the negative pressure tank 41 through the first valve 6.

[0053] In some embodiments, the switching pipe group further comprises a third valve 8, which is arranged on the second pipeline 12 between the first valve 6 and the third pipeline 13. For example, when the first valve 6 is closed, the third valve 8 is also closed, which can prevent part of the liquid from flowing into the negative pressure device 4 through the first valve 6 when the centrifugal pump 3 pumps the liquid into the liquid storage tank 5. The third valve 8 can play a double protection role, which can avoid part of the liquid flowing through the first valve 6. When the first valve 6 is opened, the third valve 8 is also opened, which can make the negative pressure device 4 communicate with the liquid bag, so as to pump out the liquid in the liquid bag.

[0054] In some embodiments, the switching pipe group further comprises a fourth valve 9, which is arranged on the third pipeline 13 and located between the second valve 7 and the input port of the liquid storage tank 5. For example, when the second valve 7 is closed, the fourth valve 9 is also closed, which can prevent part of the liquid in the liquid storage tank 5 from flowing through the second valve 7 under the action of the negative pressure when the negative pressure device 4 is turned on. The fourth valve 9 can play a double protection role, which can avoid the liquid in the liquid storage tank 5 flowing back to the second pipeline 12. When the second valve 7 is opened, the fourth valve 9 is also opened, which can make the centrifugal pump 3 communicate with the liquid storage tank 5, so as to pump the liquid into the liquid storage tank 5.

[0055] In some embodiments, the third valve 8 and / or the fourth valve 9 can be manually controlled valves, which can be manually controlled by workers according to the actual needs during the collection of the liquid. For example, the third valve 8 can be a stop valve or a ball valve, and the fourth valve 9 can be a stop valve or a ball valve.

[0056] In the collecting process of the present application, the centrifugal pump 3 in the collecting device 1 needs to be primed first. The first valve 6 and the third valve 8 are opened, the fourth valve 9 and the second valve 7 are closed, so as to switch the output port of the centrifugal pump 3 to be connected with the negative pressure device 4, and the output port of the centrifugal pump 3 is disconnected with the liquid storage tank 5. The negative pressure device 4 is started to pump out the liquid in the liquid bag and fill the centrifugal pump 3, so as to fill the centrifugal pump 3 with liquid, facilitating the centrifugal pump 3 to pump and transport the liquid. Under the action of negative pressure, the liquid in the liquid bag flows through the first pipeline 11 and the second pipeline 12 and passes through the pressure sensor. When the pressure sensor detects the liquid pressure, it transmits an electrical signal to the controller. The controller converts the electrical signal into a numerical signal and transmits it to the negative pressure pump 42, so as to control the negative pressure pump 42 to stop running. Then, the second valve 7 and the fourth valve 9 are opened, the first valve 6 and the third valve 8 are closed, so as to switch the output port of the centrifugal pump 3 to be connected with the liquid storage tank 5, and the output port of the centrifugal pump 3 is disconnected with the negative pressure device 4. The centrifugal pump 3 is started to pump the liquid into the liquid storage tank 5. When the liquid in the liquid bag cannot be pumped out by the centrifugal pump 3, the second valve 7 and the fourth valve 9 are closed, the first valve 6 and the third valve 8 are opened, and the negative pressure device 4 is started. The negative pressure device 4 pumps out the air and liquid in the liquid bag through negative pressure to reduce the liquid residue and improve the collecting efficiency.

[0057] In some embodiments, in order to avoid leakage of the liquid during transportation, the liquid outlet of the liquid bag is arranged at the top of the liquid bag, which can prevent the liquid from leaking.

[0058] In some embodiments, the collecting device 1 further comprises a fifth valve 10 arranged on the first pipeline 11. The fifth valve 10 is used to control the communication and disconnection between the liquid outlet and the input port of the centrifugal pump 3. In the collecting process, the fifth valve 10 is in an open state, so as to facilitate the communication between the liquid bag and the centrifugal pump 3, and facilitate the centrifugal pump 3 to transport the liquid in the liquid bag into the liquid storage tank 5.

[0059] In some embodiments, the fifth valve 10 has a flange part, and the fifth valve 10 is connected to the first pipeline 11 through the flange part, which can facilitate the disassembly and assembly of the fifth valve 10, and further facilitate the cleaning, maintenance and maintenance of the collecting pipeline. For example, the fifth valve 10 can be a butterfly valve.

[0060] In some embodiments, the centrifugal pump 3 can adopt a stainless steel explosion-proof centrifugal pump, which is more suitable for the transportation of flammable and explosive, corrosive liquid.

[0061] In some embodiments, the first valve 6 is arranged as an air exhaust water blocking valve, which can effectively make the air flow through the air exhaust water blocking valve while preventing the liquid from passing through, so as to avoid the liquid flowing into the negative pressure device 4.

[0062] When the first valve 6 is set as the exhaust water trap, the exhaust water trap can be in the open state during the collection process. When the negative pressure device 4 is opened, the liquid in the liquid bag flows through the pressure sensor through the first pipeline 11 and the second pipeline 12 under the action of negative pressure. When the pressure sensor detects the liquid pressure, it transmits an electrical signal to the controller. The controller converts the electrical signal into a numerical signal and transmits it to the negative pressure pump 42, so as to control the negative pressure pump 42 to stop running. Then, the second valve 7 and the fourth valve 9 are opened, and the third valve 8 is closed. The centrifugal pump 3 delivers the liquid to the liquid storage tank 5. When the liquid in the liquid cannot be pumped out by the centrifugal pump 3, the second valve 7 and the fourth valve 9 are closed, the third valve 8 is opened, and the negative pressure device 4 is opened. The negative pressure device 4 pumps out the air and liquid in the liquid bag through negative pressure to reduce the liquid residue and improve the collection efficiency.

[0063] It should be noted that the relational terms herein such as first and second, and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the listed element.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. The present application has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A material collection device, characterized by, The application relates to a liquid collecting device. The liquid collecting device comprises: a liquid bag for containing liquid, the liquid bag having a liquid outlet; a centrifugal pump having an input port and an output port, the input port being connected to the liquid outlet through a first pipeline; a negative pressure device for generating negative pressure; a liquid storage tank for storing liquid; 2. The material receiving device of claim 1, wherein, a switching pipeline group connecting the output port of the centrifugal pump, the negative pressure device and the liquid storage tank, the switching pipeline group being used for switching the output port of the centrifugal pump to be connected between the negative pressure device and the liquid storage tank. The switching pipeline group comprises: a second pipeline through which the negative pressure device is connected to the output port of the centrifugal pump; a first valve arranged on the second pipeline, the first valve being used for controlling the connection and disconnection of the negative pressure device and the output port of the centrifugal pump; a third pipeline, one end of the third pipeline being connected to the liquid storage tank, and the other end of the third pipeline being connected to the second pipeline between the first valve and the output port of the centrifugal pump; a second valve arranged on the third pipeline, the second valve being used for controlling the connection and disconnection of the liquid storage tank and the output port of the centrifugal pump.

3. The liquid collecting device according to claim 2, wherein the negative pressure device comprises a negative pressure tank and a negative pressure pump, an input port of the negative pressure tank being connected to the first valve, and an output port of the negative pressure tank being connected to the negative pressure pump.

4. The liquid collecting device according to claim 2, wherein 5. The material receiving device of claim 2, wherein, the first valve is arranged as an air exhaust and water blocking valve. The liquid collecting device further comprises:

6. The material receiving apparatus of claim 2, wherein a pressure sensor arranged at an input end of the first valve, the pressure sensor being used for detecting the liquid pressure at the input end of the first valve. The switching pipeline group further comprises:

7. The material receiving apparatus of claim 2, wherein a third valve arranged on the second pipeline between the first valve and the third pipeline. The switching pipeline group further comprises: a fourth valve arranged on the third pipeline, the fourth valve being arranged between the second valve and an input port of the liquid storage tank.

8. The liquid collecting device according to claim 1, wherein 9. The material receiving apparatus of claim 1, wherein, the liquid outlet is arranged at a top of the liquid bag. The liquid collecting device further comprises: a fifth valve arranged on the first pipeline, the fifth valve being used for controlling the connection and disconnection between the liquid outlet and the input port of the centrifugal pump.

10. The liquid collecting device according to claim 9, wherein the fifth valve has a flange part, and the fifth valve is connected to the first pipeline through the flange part.

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