Centrifugal pump device

Abstract

The utility model provides a centrifugal pump device which can comprise a centrifugal pump, a first pipeline and a pressure detector, the centrifugal pump is provided with a first opening and a second opening, the first opening is connected with a liquid inlet pipeline, the second opening is connected with a liquid outlet pipeline, and the liquid outlet pipeline is provided with a first valve; the first pipeline is provided with a third opening and a fourth opening, the third opening is communicated with the part, corresponding to the position between the second opening and the first valve, of the liquid outlet pipeline, the first pipeline is provided with a second valve and a first processor which are arranged between the third opening and the fourth opening, and the second valve can control the communication state between the liquid outlet pipeline and the first processor; the first processor comprises a first filter or a first reactor; the pressure detector is arranged on the liquid outlet pipeline and corresponds to the position between the second opening and the third opening so as to detect the gas pressure, corresponding to the position between the second opening and the third opening, of the liquid outlet pipeline.

Description

Technical Field

[0001] The present disclosure relates to the technical field of centrifugal pumps, and particularly to a centrifugal pump device. Background Art

[0002] After the centrifugal pump is started, the rotation of the motor shaft causes the pump shaft to rotate and drives the impeller in the centrifugal pump to perform a high-speed rotational motion. Subsequently, the liquid enters the pump casing and undergoes a centrifugal motion along with the impeller and is thrown towards the outer edge of the impeller, and then flows out of the centrifugal pump through the flow channel of the pump casing to achieve the transportation of the liquid.

[0003] However, when the pump casing is filled with gas before the centrifugal pump is started, it will prevent the liquid from entering the centrifugal pump, thus affecting the effective operation of the centrifugal pump. Summary of the Utility Model

[0004] The present disclosure provides a centrifugal pump device, and a technical problem to be solved is: to reduce the amount of gas in the pump casing before the centrifugal pump is started to ensure the effective operation of the centrifugal pump.

[0005] To solve the above technical problem, the present disclosure provides a centrifugal pump device, which may include: a centrifugal pump, a first pipeline, and a pressure detector. The centrifugal pump has a first opening and a second opening. The first opening is connected to a liquid inlet pipeline, and the second opening is connected to a liquid outlet pipeline, and a first valve is provided on the liquid outlet pipeline. The first pipeline has a third opening and a fourth opening. The third opening communicates with a part of the liquid outlet pipeline corresponding to the part between the second opening and the first valve. The first pipeline has a second valve and a first processor disposed between the third opening and the fourth opening. The second valve can control the communication state between the liquid outlet pipeline and the first processor. The first processor includes a first filter or a first reactor. The pressure detector is disposed at a position on the liquid outlet pipeline corresponding to the part between the second opening and the third opening to be able to detect the gas pressure of the liquid outlet pipeline corresponding to the part between the second opening and the third opening.

[0006] In some embodiments, the first pipeline includes: a first branch pipeline and a second branch pipeline. The first branch pipeline has a fifth opening and a sixth opening. The second valve and the first processor are disposed between the fifth opening and the sixth opening of the first branch pipeline. The fifth opening communicates with the liquid outlet pipeline. The second branch pipeline has a seventh opening and an eighth opening. A third valve is disposed between the seventh opening and the eighth opening of the second branch pipeline. The seventh opening communicates with the liquid outlet pipeline. Wherein, the third opening includes: the fifth opening and the seventh opening, and the fourth opening includes: the sixth opening.

[0007] In some embodiments, a partial pipeline between a fifth opening of the first branch pipeline and a second valve and a partial pipeline between a seventh opening of the second branch pipeline and a third valve are shared to form a shared pipeline, and the shared pipeline is configured with a fourth valve.

[0008] In some embodiments, the centrifugal pump device may further include: a second pipeline having a ninth opening and a tenth opening, the ninth opening being in communication with the liquid inlet pipeline, the second pipeline having a fifth valve and a recovery storage tank disposed between the ninth opening and the tenth opening, the fifth valve being capable of controlling the communication state between the liquid inlet pipeline and the recovery storage tank, and a sixth valve being provided between the recovery storage tank and the tenth opening.

[0009] In some embodiments, at least a partial section of the second pipeline corresponding to the section between the fifth valve and the recovery storage tank is made of a light-transmitting material.

[0010] In some embodiments, the centrifugal pump device may further include: a third pipeline having an eleventh opening and a twelfth opening, the eleventh opening being in communication with the recovery storage tank, a seventh valve and a second processor being disposed between the eleventh opening and the twelfth opening of the third pipeline, the seventh valve being capable of controlling the communication state between the recovery storage tank and the second processor, and the second processor including a second filter or a second reactor.

[0011] In some embodiments, the twelfth opening includes: a first sub-opening and a second sub-opening, an eighth valve being provided at the first sub-opening and a ninth valve being provided at the second sub-opening.

[0012] In some embodiments, the recovery storage tank is configured with a liquid level gauge.

[0013] In some embodiments, the second pipeline further includes: an alarm, which is in signal connection with the liquid level gauge.

[0014] In some embodiments, the centrifugal pump device may further include: a temporary storage tank having a thirteenth opening and a fourteenth opening, the fourteenth opening being in communication with the liquid inlet pipeline, the position of the fourteenth opening being higher than the position of the liquid inlet pipeline, and a tenth valve being provided at the fourteenth opening.

[0015] Through the above technical solution, the centrifugal pump device provided by the present disclosure includes: a centrifugal pump, a first pipeline, and a pressure detector. The inlet and outlet of the centrifugal pump are a first opening and a second opening respectively. The first pipeline is communicated with the outlet of the centrifugal pump, and the pressure detector is also correspondingly located at the outlet of the centrifugal pump. Before the centrifugal pump starts to operate, the liquid can enter the pump casing from the inlet of the centrifugal pump under the action of gravity or other driving forces, so as to push the gas in the pump casing out of the outlet of the centrifugal pump and into the first pipeline for further treatment. When the pressure detector detects that the gas pressure at the outlet of the centrifugal pump is within a preset range, it can be considered that the gas in the pump casing is almost zero. Then, the centrifugal pump can be started to work to transport the liquid. In this way, before the centrifugal pump starts, the gas in the pump casing is almost zero, reducing the resistance to the inflow of the liquid into the centrifugal pump, thereby ensuring the effective operation of the centrifugal pump. In addition, the gas in the pump casing enters the first pipeline for further treatment. This treatment can be to remove the toxic gas in the gas, and then discharge or recycle it.

[0016] The above description is only an overview of the technical solution of the present disclosure. In order to be able to understand the technical means of the present disclosure more clearly and to be implemented in accordance with the content of the description, the following describes in detail with reference to the preferred embodiments of the present disclosure and the accompanying drawings. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Structural schematic of the centrifugal pump device provided by the present disclosure Figure 1 ;

[0019] Figure 2 Structural schematic of the centrifugal pump device provided by the present disclosure Figure 2 。

[0020] Description of the reference numerals:

[0021] 100, Centrifugal pump device; 10, Centrifugal pump; 101, First opening; 102, Second opening; 20, First pipeline; 201, Third opening; 202, Fourth opening; 203, Second valve; 204, First processor; 21, First branch pipeline; 211, Fifth opening; 212, Sixth opening; 22, Second branch pipeline; 221, Seventh opening; 222, Eighth opening; 223, Third valve; 23, Common pipeline; 231, Fourth valve; 30, Liquid inlet pipeline; 40, Liquid outlet pipeline; 401, First valve; 50, Second pipeline; 501, Ninth opening; 502, Tenth opening; 503, Fifth valve; 504, Recovery storage tank; 505, Visual window; 60, Third pipeline; 601, Eleventh opening; 602, Twelfth opening. Detailed implementation manners

[0022] The following further describes the implementation manners of the present disclosure in detail in conjunction with the drawings and embodiments. The detailed descriptions and drawings of the following embodiments are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed in the text, but including all technical solutions falling within the scope of the claims.

[0023] These embodiments are provided by the present disclosure to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these embodiments should be construed as merely exemplary, rather than as limitations.

[0024] It should be noted that in the description of the present disclosure, unless otherwise stated, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation of the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In addition, the "first", "second" and similar terms used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0026] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and defined, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0027] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0028] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the specification.

[0029] After the centrifugal pump is started, the rotation of the motor shaft causes the pump shaft to rotate and drives the impeller in the centrifugal pump to perform a high-speed rotational motion. Subsequently, the liquid enters the pump casing and undergoes a centrifugal motion along with the impeller and is thrown towards the outer edge of the impeller, and then flows out of the centrifugal pump through the flow channel of the pump casing to achieve the transportation of the liquid.

[0030] However, when the pump casing is filled with gas before the centrifugal pump is started, it will hinder the liquid from entering the centrifugal pump, thereby affecting the effective operation of the centrifugal pump.

[0031] In view of this, the inventor proposes a centrifugal pump device 100, see Figure 1 and Figure 2As shown, the centrifugal pump device 100 includes: a centrifugal pump 10, a first pipeline 20, and a pressure detector (not shown in the figure). The first pipeline 20 is connected to the outlet of the centrifugal pump 10 (i.e., the second opening 102 hereinafter), and the pressure detector is also correspondingly located at the outlet of the centrifugal pump 10. Before the centrifugal pump 10 starts to operate, liquid can enter the pump casing from the inlet of the centrifugal pump 10 (i.e., the first opening 101 hereinafter) under the action of gravity or other driving forces, so as to push the gas in the pump casing out of the outlet of the centrifugal pump 10 and send it to the first pipeline 20 for further treatment. When the pressure detector detects that the gas pressure at the outlet of the centrifugal pump 10 is within a preset range (such as less than 1 Pa), it can be considered that the gas in the pump casing is almost zero, and then the centrifugal pump 10 can be started to operate to transport the liquid. In this way, before the centrifugal pump 10 starts, the gas in the pump casing is almost zero, so as to reduce the obstruction to the inflow of liquid into the centrifugal pump 10, thereby ensuring the effective operation of the centrifugal pump 10. In addition, the gas in the pump casing enters the first pipeline 20 for further treatment. The treatment here can be to remove the toxic gas in the gas, and then discharge or recycle it.

[0032] The present disclosure provides a centrifugal pump device 100. Refer to Figure 1 and Figure 2 As shown, the centrifugal pump device 100 includes: a centrifugal pump 10, a first pipeline 20, and a pressure detector. The centrifugal pump 10 has a first opening 101 and a second opening 102. The first opening 101 is connected to a liquid inlet pipeline 30, and the second opening 102 is connected to a liquid outlet pipeline 40, and a first valve 401 is provided on the liquid outlet pipeline 40. The first pipeline 20 has a third opening 201 and a fourth opening 202. The third opening 201 is connected to a part of the liquid outlet pipeline 40 between the second opening 102 and the first valve 401. The first pipeline 20 has a second valve 203 and a first processor 204 disposed between the third opening 201 and the fourth opening 202. The second valve 203 can control the connection state between the liquid outlet pipeline 40 and the first processor 204. The first processor 204 includes a first filter or a first reactor. The pressure detector is disposed at a position on the liquid outlet pipeline 40 corresponding to the part between the second opening 102 and the third opening 201 to be able to detect the gas pressure in the liquid outlet pipeline 40 corresponding to the part between the second opening 102 and the third opening 201.

[0033] The centrifugal pump 10 is a fluid machine and is widely used in industrial, agricultural and other fields for transporting various liquids. It may include: a pump casing (also known as a volute), a pump shaft and an impeller. The pump casing has a first opening 101 (which is the inlet of the centrifugal pump 10) and a second opening 102 (which is the outlet of the centrifugal pump 10). The pump shaft is arranged at the central position of the pump casing and is connected to the motor shaft of the motor. The impeller is located inside the pump casing and is connected to the pump shaft. When the motor operates to rotate the motor shaft, the pump shaft rotates and drives the impeller to rotate, so that the first opening 101 can suck the liquid into the center of the impeller. The liquid rotates with the impeller and is thrown to the edge of the impeller under the action of centrifugal force and is sent out from the second opening 102 provided on the circumferential surface of the pump casing. The first opening 101 is connected to the liquid inlet pipeline 30 to be able to suck the liquid in the liquid inlet pipeline 30 into the pump casing; the second opening 102 is connected to the liquid outlet pipeline 40 to be able to transport the liquid in the pump casing to a designated position via the liquid outlet pipeline 40, such as: transporting to an industrial workshop, farmland, etc.; wherein, the first valve 401 provided on the liquid outlet pipeline 40 can control whether the liquid flows out of the liquid outlet pipeline 40 at the position of the first valve 401.

[0034] The first pipeline 20 is at least used to send out the gas in the pump casing. The third opening 201 of the first pipeline 20 can communicate with the side wall of the liquid outlet pipeline 40. Before the centrifugal pump 10 starts, when the first valve 401 is closed and the second valve 203 is open, the liquid (the liquid is the same as the liquid to be transported after the centrifugal pump 10 starts) can be sent into the pump casing via the first opening 101. As more and more liquid enters, it pushes the gas in the pump casing to flow to the second opening 102 and then flows to the first processor 204 through the second valve 203 for processing. The processed gas meets the emission standard and can be discharged from the fourth opening 202 of the first pipeline 20; after the centrifugal pump 10 starts, the first valve 401 is open and the second valve 203 is closed. In this way, the liquid can be sent into the pump casing via the first opening 101, and is thrown to the second opening 102 at the edge of the impeller in the centrifugal pump 10 and then flows to the outlet of the liquid outlet pipeline 40 through the first valve 401 to be transported to a designated position. The filtering function of the first filter can filter the toxic part in the gas so that the filtered gas is non-toxic and can be directly discharged. For example, the first filter is activated carbon, molecular sieve, etc.; the reaction function of the first reactor can chemically decompose or combine the toxic components in the gas so that the gas after the reaction is non-toxic and can be directly discharged. For example, the first reactor is an oxygen reactor, which can react with the toxic carbon monoxide in the pump casing to generate carbon dioxide, and carbon dioxide is non-toxic and can be directly discharged.

[0035] A pressure detector is at least used to detect the gas pressure information of the liquid outlet pipeline 40. After the gas pressure in the liquid outlet pipeline 40 is within a preset range, the first valve 401 is controlled to open and the second valve 203 is closed, so that the centrifugal pump 10 can be started to carry out the liquid transportation work. The pressure detector can be a piezoresistive pressure sensor, a capacitive pressure sensor, etc.

[0036] In one example, refer to Figure 1 As shown, the centrifugal pump device 100 includes: a centrifugal pump 10, a first pipeline 20 and a pressure detector. The centrifugal pump 10 has a first opening 101 and a second opening 102. The first opening 101 is connected to a liquid inlet pipeline 30, and the second opening 102 is connected to a liquid outlet pipeline 40. A first valve 401 is provided on the liquid outlet pipeline 40. The first pipeline 20 has a third opening 201 and a fourth opening 202. The third opening 201 communicates with the side wall between the second opening 102 and the third opening 201 of the liquid outlet pipeline 40. The first pipeline 20 has a second valve 203 and a first processor 204 arranged between the third opening 201 and the fourth opening 202. The second valve 203 can control the communication state between the liquid outlet pipeline 40 and the first processor 204. The first processor 204 includes a first filter with an adsorption function. The pressure detector is arranged at a position on the liquid outlet pipeline 40 corresponding to the section between the second opening 102 and the third opening 201 to be able to detect the gas pressure of the liquid outlet pipeline 40 corresponding to the section between the second opening 102 and the third opening 201.

[0037] The exhaust process before the centrifugal pump 10 starts is as follows:

[0038] S101: Close the first valve 401 and open the second valve 203;

[0039] S102: Send liquid into the centrifugal pump 10 through the first opening 101. This liquid is the same as the liquid to be transported after the centrifugal pump 10 starts working. The liquid pushes the gas in the centrifugal pump 10 to be sent to the first processor 204 through the second valve 203 for adsorption treatment of toxic gas, and then is sent out to the atmosphere through the second opening 102 of the first pipeline 20.

[0040] S103: After the pressure detector detects that the gas pressure of the liquid outlet pipeline 40 is within the preset range, close the second valve 203, open the first valve 401, and start the centrifugal pump 10.

[0041] In this embodiment, the centrifugal pump device 100 includes: a centrifugal pump 10, a first pipeline 20, and a pressure detector. The inlet and outlet of the centrifugal pump 10 are a first opening 101 and a second opening 102 respectively. The first pipeline 20 is communicated with the outlet of the centrifugal pump 10, and the pressure detector is also correspondingly located at the outlet of the centrifugal pump 10. Before the centrifugal pump 10 starts to work, the liquid can enter the pump casing from the inlet of the centrifugal pump 10 under the action of gravity or other driving forces, so as to push the gas in the pump casing out of the outlet of the centrifugal pump 10 and send it to the first pipeline 20 for further processing. When the gas pressure at the outlet of the centrifugal pump 10 detected by the pressure detector is within a preset range, it can be considered that the gas in the pump casing is almost zero, and then the centrifugal pump 10 is started to work to transport the liquid. In this way, before the centrifugal pump 10 is started, the gas in the pump casing is almost zero, which reduces the resistance to the inflow of the liquid into the centrifugal pump 10, thereby ensuring the effective operation of the centrifugal pump 10. In addition, the gas in the pump casing enters the first pipeline 20 for further processing. The processing here can be to remove the toxic gas in the gas, and then discharge or recycle it.

[0042] In some embodiments, referring to Figure 2 As shown, the first pipeline 20 includes: a first branch pipeline 21 and a second branch pipeline 22; the first branch pipeline 21 has a fifth opening 211 and a sixth opening 212. A second valve 203 and a first processor 204 are arranged between the fifth opening 211 and the sixth opening 212 of the first branch pipeline 21. The fifth opening 211 is communicated with the liquid outlet pipeline 40; the second branch pipeline 22 has a seventh opening 221 and an eighth opening 222. A third valve 223 is arranged between the seventh opening 221 and the eighth opening 222 of the second branch pipeline 22. The seventh opening 221 is communicated with the liquid outlet pipeline 40; wherein, the third opening 201 includes: the fifth opening 211 and the seventh opening 221, and the fourth opening 202 includes: the sixth opening 212.

[0043] In this way, when the first valve 401 is closed, the second valve 203 is opened, and the third valve 223 is closed, the gas inside the centrifugal pump 10 can be discharged through the first branch pipeline 21 before the centrifugal pump 10 starts to work. In addition, when the centrifugal pump 10 needs to replace the transported liquid or needs to clean the inside of the centrifugal pump 10, the first valve 401 and the second valve 203 can be closed, the third valve 223 can be opened, and purge gas / cleaning liquid such as nitrogen can be sent into the second branch pipeline 22 through the eighth opening 222. Then, the purge gas / cleaning liquid enters the centrifugal pump 10 through the seventh opening 221 and finally flows out from the liquid inlet pipeline 30 or other pipelines communicated with the liquid inlet pipeline 30 (such as the second pipeline 50 in the following text), thereby reducing the influence of the residual liquid in the centrifugal pump 10 on the composition of the different liquids transported for the second time, and protecting the centrifugal pump 10 from being eroded.

[0044] In some embodiments, see Figure 2 As shown, a portion of the pipeline between the fifth opening 211 of the first branch pipeline 21 and the second valve 203 is shared with a portion of the pipeline between the seventh opening 221 of the second branch pipeline 22 and the third valve 223 to form a common pipeline 23, and the common pipeline 23 is provided with a fourth valve 231. In this way, the materials used for the first branch pipeline 21 and the second branch pipeline 22 can be reduced, so as to reduce the manufacturing cost of the centrifugal pump 10.

[0045] In some embodiments, see Figure 2 As shown, the centrifugal pump device 100 may also include: a second pipeline 50, having a ninth opening 501 and a tenth opening 502, the ninth opening 501 is connected to the liquid inlet pipeline 30, the second pipeline 50 has a fifth valve 503 and a recovery tank 504 arranged between the ninth opening 501 and the tenth opening 502, the fifth valve 503 can control the connection state between the liquid inlet pipeline 30 and the recovery tank 504, and a sixth valve (not shown in the figure) is arranged between the recovery tank 504 and the tenth opening 502.

[0046] When the first valve 401 is closed, the second valve 203 is closed, and the third valve 223 is opened, the fifth valve 503 can be opened and the sixth valve can be closed. The purge gas or cleaning liquid entering from the eighth opening 222 can enter the second pipeline 50 through the second branch pipeline 22 and the centrifugal pump 10, and enter the recovery tank 504 through the fifth valve 503 for recovery. Then, the medium in the recovery tank 504 can be tested, and when it is determined that the medium can be discharged directly, the sixth valve can be opened to discharge it to a dischargeable location such as a ditch. When it is determined that the medium cannot be discharged directly (for example, there is toxic gas in the centrifugal pump 10), the sixth valve can be kept closed, and the medium in the recovery tank 504 can be subjected to adsorption, reaction, and other treatments, so that the sixth valve can be opened for discharge after the discharge standard is met.

[0047] In some embodiments, see Figure 2 As shown, at least a portion of the second pipeline 50 between the fifth valve 503 and the recovery tank 504 is made of a light-transmitting material. Figure 2 As shown, a visible window 505 made of light-transmitting material is provided on the second pipeline 50 at a position corresponding to between the fifth valve 503 and the recovery tank 504. The staff can observe through the visible window 505 whether there is cleaning liquid flowing in the second pipeline 50 to confirm whether the cleaning process is completed.

[0048] In some embodiments, see Figure 2As shown, the centrifugal pump device 100 may further include: a third pipeline 60 having an eleventh opening 601 and a twelfth opening 602. The eleventh opening 601 communicates with the recovery storage tank 504. A seventh valve (not shown in the figure) and a second processor (not shown in the figure) are arranged between the eleventh opening 601 and the twelfth opening 602 of the third pipeline 60. The seventh valve can control the communication state between the recovery storage tank 504 and the second processor. The second processor includes a second filter or a second reactor.

[0049] When the first valve 401 is closed, the second valve 203 is closed, and the third valve 223 is open, the fifth valve 503 and the seventh valve can be opened and the sixth valve can be closed. The purge gas or cleaning liquid entering from the eighth opening 222 can pass through the second branch pipeline 22, the centrifugal pump 10 into the second pipeline 50, and enter the recovery storage tank 504 through the fifth valve 503 for recovery. Then, it can pass through the seventh valve into the third pipeline 60 and be processed by the second processor for recycling, thereby reducing waste.

[0050] The filtering function of the second filter can filter the toxic part in the gas / liquid so that the filtered gas / liquid is non-toxic and can be reused; the reaction function of the second reactor can chemically decompose or combine the toxic components in the gas / liquid so that the gas / liquid after the reaction is non-toxic and can be reused.

[0051] In some embodiments, the twelfth opening 602 includes: a first sub-opening and a second sub-opening. An eighth valve is provided at the first sub-opening, and a ninth valve is provided at the second sub-opening. The first sub-opening can be connected to a reuse device to realize the reuse of the gas / liquid processed by the second processor. The second sub-opening can be connected to a discharge place such as a gutter to realize the discharge of the gas / liquid processed by the second processor.

[0052] In some embodiments, the recovery storage tank 504 is equipped with a liquid level gauge (not shown in the figure). So that the staff can timely understand the liquid level in the recovery storage tank 504 through the liquid level gauge. Furthermore, when the liquid level is too high and the recovery storage tank 504 will be filled with the cleaning liquid, the input of the cleaning liquid in the second branch pipeline 22 can be stopped to ensure the safe use of the centrifugal pump device 100.

[0053] In some embodiments, the second pipeline 50 further includes: an alarm, which is signal-connected to the liquid level gauge. To send an alarm message when the liquid level gauge detects that the liquid level in the recovery storage tank 504 is higher than the set height, so that the staff can notice it in the first time.

[0054] The set height can be the height position corresponding to the cleaning liquid in the recovery storage tank 504 accounting for 4 / 5 of the capacity of the recovery storage tank 504; the warning information can be beeping sounds, voice broadcasts, and other information.

[0055] In some embodiments, the centrifugal pump device 100 may further include: a temporary storage tank (not shown in the figure), having a thirteenth opening and a fourteenth opening, the fourteenth opening communicating with the liquid inlet pipeline 30, the position of the fourteenth opening being higher than the position of the liquid inlet pipeline 30, and a tenth valve being provided at the fourteenth opening.

[0056] In this way, before the centrifugal pump 10 starts to work, the tenth valve can be opened so that the liquid in the temporary storage tank enters the centrifugal pump 10 under the action of gravity, pushing the gas in the centrifugal pump 10 to the first branch pipeline 21 to complete the exhaust process.

[0057] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0058] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or partial technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way.

Claims

1. A centrifugal pump device, characterized in that, Comprising: A centrifugal pump having a first opening and a second opening, the first opening being connected to a liquid inlet pipeline, the second opening being connected to a liquid outlet pipeline, and a first valve being provided on the liquid outlet pipeline; A first pipeline having a third opening and a fourth opening, the third opening communicating with a portion of the liquid outlet pipeline between the second opening and the first valve, the first pipeline having a second valve and a first processor disposed between the third opening and the fourth opening, the second valve being capable of controlling the communication state between the liquid outlet pipeline and the first processor, and the first processor including a first filter or a first reactor; A pressure detector disposed at a position on the liquid outlet pipeline corresponding to the portion between the second opening and the third opening to be capable of detecting the gas pressure of the liquid outlet pipeline corresponding to the portion between the second opening and the third opening.

2. The centrifugal pump device according to claim 1, wherein The first pipeline includes: a first branch pipeline and a second branch pipeline; The first branch pipeline has a fifth opening and a sixth opening, the second valve and the first processor are disposed between the fifth opening and the sixth opening of the first branch pipeline, and the fifth opening communicates with the liquid outlet pipeline; The second branch pipeline has a seventh opening and an eighth opening, a third valve is disposed between the seventh opening and the eighth opening of the second branch pipeline, and the seventh opening communicates with the liquid outlet pipeline; Wherein, the third opening includes: the fifth opening and the seventh opening, and the fourth opening includes: the sixth opening.

3. The centrifugal pump device according to claim 2, wherein A portion of the pipeline between the fifth opening and the second valve of the first branch pipeline and a portion of the pipeline between the seventh opening and the third valve of the second branch pipeline are shared to form a shared pipeline, and a fourth valve is provided on the shared pipeline.

4. The centrifugal pump device according to claim 2 or 3, characterized in that, Further comprising: A second pipeline having a ninth opening and a tenth opening, the ninth opening communicating with the liquid inlet pipeline, the second pipeline having a fifth valve and a recovery storage tank disposed between the ninth opening and the tenth opening, the fifth valve being capable of controlling the communication state between the liquid inlet pipeline and the recovery storage tank, and a sixth valve being provided between the recovery storage tank and the tenth opening.

5. The centrifugal pump device according to claim 4, wherein At least a partial section of the second pipeline corresponding to the portion between the fifth valve and the recovery storage tank is made of a light-transmitting material.

6. The centrifugal pump device according to claim 4, characterized in that, Further comprising: A third pipeline having an eleventh opening and a twelfth opening, the eleventh opening communicating with the recovery storage tank, a seventh valve and a second processor being disposed between the eleventh opening and the twelfth opening of the third pipeline, the seventh valve being capable of controlling the communication state between the recovery storage tank and the second processor, and the second processor including a second filter or a second reactor.

7. The centrifugal pump device according to claim 6, wherein The twelfth opening includes: a first sub-opening and a second sub-opening, an eighth valve is provided at the first sub-opening, and a ninth valve is provided at the second sub-opening.

8. The centrifugal pump device according to claim 4, characterized in that the recovery storage tank is configured with a liquid level gauge.

9. The centrifugal pump device according to claim 8, characterized in that the second pipeline further includes: an alarm, which is signal-connected to the liquid level gauge.

10. The centrifugal pump device according to claim 1, characterized in that, It further includes: a temporary storage tank, having a thirteenth opening and a fourteenth opening, the fourteenth opening is communicated with the liquid inlet pipeline, the position of the fourteenth opening is higher than the position of the liquid inlet pipeline, and a tenth valve is provided at the fourteenth opening.

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