CN116378933A - Descaling device and descaling method - Google Patents
Descaling device and descaling method Download PDFInfo
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- CN116378933A CN116378933A CN202310395089.5A CN202310395089A CN116378933A CN 116378933 A CN116378933 A CN 116378933A CN 202310395089 A CN202310395089 A CN 202310395089A CN 116378933 A CN116378933 A CN 116378933A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 346
- 239000000498 cooling water Substances 0.000 claims abstract description 277
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 47
- 239000003599 detergent Substances 0.000 claims abstract description 43
- 230000004044 response Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
The application provides a descaling device and a descaling method, which are used for a vacuum pump, wherein the vacuum pump comprises a cooling water pipeline; the descaling device comprises: a cooling water tank and a detergent water tank; a first circulation line and a second circulation line; the first circulating pipeline is used for communicating the cooling water tank with the cooling water pipeline; the second circulation pipeline is used for communicating the descaling agent water tank with the cooling water pipeline; the first circulating pipeline and the second circulating pipeline are connected in parallel; a first electronic water valve and a second electronic water valve; the first electronic water valve is arranged on the first circulating pipeline, and the second electronic water valve is arranged on the second circulating pipeline; the flow sensor is arranged on the cooling water pipeline; and a controller electrically connected to the flow sensor, the first electronic water valve, and the second electronic water valve, respectively, configured to: acquiring water flow of a cooling water pipeline; and if the water flow rate of the cooling water pipeline is lower than the first flow rate threshold value, controlling the first electronic water valve to be closed and controlling the second electronic water valve to be opened so as to enable the descaling agent water tank to be connected into the cooling water pipeline.
Description
Technical Field
The application relates to the technical field of vacuum pump accessory devices, in particular to a descaling device and a descaling method.
Background
Vacuum pumps refer to devices or apparatus that draw air from a container being evacuated using mechanical, physical, chemical, or physicochemical means to obtain a vacuum. Generally, vacuum pumps are devices that improve, create, and maintain a vacuum in an enclosed space by various methods.
The vacuum pump can have high temperature in the use process, if the problem of high temperature occurs in a short time, but enough attention must be paid to the high temperature for a long time. The long-time high temperature condition directly influences the running state of the vacuum pump, damages to various parts of the vacuum pump and even scrapps of the motor when serious.
In order to ensure the operation safety of the vacuum pump, the vacuum pump needs to be cooled when the temperature of the vacuum pump is too high, and water cooling and heat dissipation are the most common modes. However, when cooling water is used for a long time, a problem that dirt blocks a water pipe may occur, which affects the use of the cooling device.
In the prior art, when descaling, most of the water pipes are removed for maintenance after stopping, and the descaling efficiency is low.
Disclosure of Invention
The application provides a descaling device and a descaling method, and aims to solve the technical problem of low descaling efficiency in the prior art.
The application provides a descaling device which is used for a vacuum pump, wherein the vacuum pump comprises a cooling water pipeline; the descaling device includes:
a cooling water tank and a detergent water tank;
a first circulation line and a second circulation line; the first circulating pipeline is used for communicating the cooling water tank with the cooling water pipeline; the second circulation pipeline is used for communicating the descaling agent water tank with the cooling water pipeline; the first circulating pipeline and the second circulating pipeline are connected in parallel;
a first electronic water valve and a second electronic water valve; the first electronic water valve is arranged on the first circulating pipeline, and the second electronic water valve is arranged on the second circulating pipeline;
the flow sensor is arranged on the cooling water pipeline and is used for collecting water flow in the cooling water pipeline; and
the controller is electrically connected with the flow sensor, the first electronic water valve and the second electronic water valve respectively; the controller is configured to:
acquiring the water flow of the cooling water pipeline;
and if the water flow rate of the cooling water pipeline is lower than a first flow rate threshold value, controlling the first electronic water valve to be closed and controlling the second electronic water valve to be opened so that the descaling agent water tank is connected into the cooling water pipeline.
Optionally, the controller is configured to:
before the first electronic water valve is controlled to be closed and the second electronic water valve is controlled to be opened so that the descaling agent water circulation system is connected into the cooling water pipeline, the opening degree of the first electronic water valve is controlled to be increased;
acquiring water flow after the opening of the first electronic water valve is increased;
and if the water flow rate of the first electronic water valve after the opening degree is increased is lower than the first flow rate threshold value, controlling the first electronic water valve to be closed and the second electronic water valve to be opened so that the descaling agent water tank is connected into the cooling water pipeline.
Optionally, the controller is further configured to:
acquiring water flow of the descaling agent water tank after the descaling agent water tank is connected into the cooling water pipeline;
and if the water flow rate of the descaling agent water tank after being connected into the cooling water pipeline is greater than or equal to a second flow rate threshold value, controlling the first electronic water valve to be opened and the second electronic water valve to be closed so that the cooling water tank is connected into the cooling water pipeline.
Optionally, the first flow threshold is less than the second flow threshold.
Optionally, the controller is further configured to:
if the water flow rate of the cooling water pipeline is lower than the first flow rate threshold value, alarming;
and if the water flow rate of the descaling agent water tank after being connected into the cooling water pipeline is higher than the first flow rate threshold value, the alarm is released.
Optionally, the cooling water pipeline is provided with a cooling water inlet and a cooling water outlet;
the first circulating pipeline comprises a first water inlet pipeline and a first water outlet pipeline; opposite ends of the first water inlet pipeline are respectively communicated with the cooling water outlet and the cooling water tank; opposite ends of the first water outlet pipeline are respectively communicated with the cooling water inlet and the cooling water tank; the first electronic water valve is arranged on the first water inlet pipeline and the first water outlet pipeline;
the second circulating pipeline comprises a second water inlet pipeline and a second water outlet pipeline; opposite ends of the second water inlet pipeline are respectively communicated with the cooling water outlet and the descaling agent water tank; opposite ends of the second water outlet pipeline are respectively communicated with the cooling water inlet and the descaling agent water tank; the second electronic water valve is arranged on the second water inlet pipeline and the second water outlet pipeline.
Optionally, the controller comprises a main control board, a front panel electrically connected with the main control board and a descaling button arranged on the front panel; the main control board is electrically connected with the first electronic water valve and the second electronic water valve;
the main control board is configured to: if the water flow rate of the cooling water pipeline is lower than a first flow rate threshold value, and after receiving a pressing signal of the descaling button, generating a control instruction;
wherein the first electronic water valve is closed in response to the control instruction, and the second electronic water valve is opened in response to the control instruction.
Optionally, the controller further comprises a display screen, and the display screen is electrically connected with the main control board.
The application also provides a descaling method which is applied to the descaling device, wherein the descaling device comprises a descaling agent water circulation system and a cooling water circulation system; the descaling agent water circulation system and the cooling water circulation system are connected in parallel to the cooling water pipeline;
the descaling method comprises the following steps:
acquiring water flow of a cooling water pipeline;
and if the water flow is lower than a first flow threshold, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline.
Optionally, if the water flow rate is lower than a first flow rate threshold, controlling the cooling water circulation system to be disconnected from the cooling water pipeline, and the detergent water circulation system and the cooling water pipeline to be connected includes:
if the water flow rate is lower than a first flow rate threshold value, controlling the cooling water circulation system to improve the water supply rate;
and if the water flow rate of the cooling water circulation system after the water supply amount is increased is lower than the first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline.
In the technical scheme of this application, under normal operating mode, first electron water valve is opened, and the second electron water valve is closed, and coolant tank inserts in the cooling water pipeline. The cooling water flows in the cooling water pipeline to cool the vacuum pump. When the water flow collected by the flow sensor arranged on the cooling water pipeline is lower than a first flow threshold value, the first electronic water valve is controlled to be closed, the second electronic water valve is controlled to be opened, the cooling water tank and the cooling water pipeline are cut off, the descaling agent water tank is connected into the cooling water pipeline, so that water containing the descaling agent enters the cooling water pipeline, dirt in the cooling water pipeline is removed, the cooling water pipeline is smooth, and long-time high-temperature operation of the vacuum pump is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a descaling device provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of the control logic in the descaling device according to the embodiment of the present application;
FIG. 3 is a schematic diagram of the installation of a flow sensor provided in an embodiment of the present application;
fig. 4 is a schematic structural view of a vacuum pump in an embodiment of the present application.
List of reference numerals
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The vacuum pump may be at a high temperature during use. Operation of a vacuum pump at high temperatures for long periods of time can cause damage to components therein, particularly if severe, can result in motor failure. Therefore, in order to ensure the operation safety of the vacuum pump, it is necessary to cool the vacuum pump when the temperature of the vacuum pump is too high, and water cooling is the most common way. However, when cooling water is used for a long time, a problem that dirt blocks a water pipe may occur, which affects the use of the cooling device. To this end, embodiments of the present application provide a descaling device to remove scale when a cooling water line within a vacuum pump is blocked.
The embodiment of the application relates to a descaling device, which is used for a vacuum pump 1, and is shown in fig. 1 and 2, wherein the vacuum pump 1 comprises a cooling water pipeline 10; the descaling device includes:
a cooling water tank 210 and a detergent water tank 220;
a first circulation line 230 and a second circulation line 240; the first circulation pipe 230 is used for communicating the cooling water tank 210 with the cooling water pipe 10; the second circulation line 240 is used for communicating the detergent water tank 220 with the cooling water line 10; the first circulation line 230 and the second circulation line 240 are connected in parallel;
a first electronic water valve 250 and a second electronic water valve 260; the first electronic water valve 250 is installed on the first circulation line 230, and the second electronic water valve 260 is installed on the second circulation line 240;
a flow sensor 270, wherein the flow sensor 270 is installed on the cooling water pipeline 10 and is used for collecting water flow in the cooling water pipeline; and
a controller 280, wherein the controller 280 is electrically connected to the flow sensor 270, the first electronic water valve 250 and the second electronic water valve 260, respectively; the controller 280 is configured to:
acquiring the water flow of the cooling water pipeline 10;
if the water flow rate of the cooling water pipeline 10 is lower than a first flow rate threshold value, the first electronic water valve 250 is controlled to be closed, and the second electronic water valve 260 is controlled to be opened, so that the detergent water tank 220 is connected to the cooling water pipeline 10.
In the technical solution of the present application, under normal working conditions, the first electronic water valve 250 is opened, the second electronic water valve 260 is closed, and the cooling water tank 210 is connected to the cooling water pipeline 10. The cooling water flows through the cooling water line 10 to cool down the vacuum pump 1. When the water flow collected by the flow sensor 270 arranged on the cooling water pipeline 10 is lower than the first flow threshold, the first electronic water valve 250 is controlled to be closed, the second electronic water valve 260 is controlled to be opened, and at the moment, the cooling water tank 210 and the cooling water pipeline 10 are closed, the descaling agent water tank 220 is connected into the cooling water pipeline 10, so that the water containing the descaling agent enters into the cooling water pipeline 10 to remove dirt in the cooling water pipeline 10, the cooling water pipeline 10 is smooth, and the condition that the vacuum pump 1 runs at high temperature for a long time is avoided.
In the technical difficulty of the present application, the water flow rate in the cooling water pipe 10 is measured. The controller 280 determines whether or not the cooling water pipe 10 is clogged based on the water flow rate and the first flow rate threshold value; if the blockage occurs, the first electronic water valve 250 is controlled to be closed, and the second electronic water valve 260 is controlled to be opened, so that the water supply tank to the cooling water pipeline 10 is switched from the cooling water tank 210 to the descaling agent tank 220, and thereby the release of the descaling agent is realized.
The detergent tank 220 is provided with a detergent having a predetermined concentration. When the water flow rate of the cooling water line 10 is not lower than the first flow rate threshold, the cooling water tank 210 establishes circulation with the cooling water line 10 through the first circulation line 230. A heat exchanger is disposed in the cooling water tank 210 for cooling the hot water passing through the cooling water pipe 10, and the cooled cooling water is fed into the cooling water pipe 10. Since the cooling water tank 210 is not an important improvement in the present application, it may be provided in a conventional manner in the art.
In the embodiment, the flow sensor 270 may be disposed on a pipe wall of the cooling water pipe 10 or a cooling water inlet 11 or a cooling water outlet 12 or a diverter valve thereon, etc. to collect the water flow in the cooling water pipe 10. For example, as shown in fig. 3, a flow sensor 270 is provided on the pipe wall of the cooling water pipe 10. The flow sensor 270 and the controller 280 are connected through an isolation amplifier circuit and a seal operational amplifier. Specifically, the water flow information collected by the flow sensor 270 is input to the isolation amplifier through the current signal, the isolation amplifier outputs the differential signal and then enters the operational amplifier, and the output signal of the operational amplifier is transmitted into the controller 280 to detect the water flow in the cooling water pipeline 10 in real time.
In an embodiment, if the amount of water in the cooling water line 10 is below the first flow threshold, the controller 280 is configured to: before the first electronic water valve 250 is controlled to be closed and the second electronic water valve 260 is controlled to be opened so that the detergent water circulation system is connected to the cooling water pipeline 10, the opening degree of the first electronic water valve 250 is controlled to be increased. That is, water is supplied to the cooling water pipe 10 by increasing the amount of the supplied cooling water, so that dirt in the cooling water pipe 10 can be physically removed. At this time, the water flow rate after the opening of the first electronic water valve 250 is increased is obtained; if the water flow rate of the first electronic water valve 250 after the opening degree is increased is lower than the first flow rate threshold, the first electronic water valve 250 is controlled to be closed, and the second electronic water valve 260 is controlled to be opened, so that the detergent water tank 220 is connected to the cooling water pipeline 10. That is, after increasing the opening of the first electronic water valve 250, if the collected water flow is still smaller than the first flow threshold, the first electronic water valve 250 is controlled to be closed, the second electronic water valve 260 is controlled to be opened, and the detergent water tank 220 is connected to the cooling water pipeline 10, so that dirt in the cooling water pipeline 10 is removed chemically, and the cooling water pipeline 10 is smooth.
Under normal conditions, the first electronic water valve 250 has a first opening such that the flow of water in the cooling water line 10 is controlled; when the water flow rate in the cooling water pipe 10 is lower than the first flow rate threshold, the first opening degree can be increased to the second opening degree, and the water supply amount can be increased. At this time, on the one hand, dirt in the cooling water pipe 10 can be removed by means of water impact or the like, and on the other hand, a longer inspection and maintenance time can be provided for the operator. If the collected water flow is maintained above the first flow threshold after the opening of the first electronic water valve 250 is increased, the coolant tank 220 is not required to be connected to the cooling water pipeline 10, so that the cooling water tank 210 continues to provide cooling water without descaling the cooling water pipeline 10 by the coolant.
As an alternative to the above embodiment, the controller 280 is further configured to: acquiring water flow of the detergent water tank 220 after being connected to the cooling water pipeline 10; if the water flow rate of the detergent water tank 220 after being connected to the cooling water pipeline 10 is greater than or equal to a second flow rate threshold, the first electronic water valve 250 is controlled to be opened, and the second electronic water valve 260 is controlled to be closed, so that the cooling water tank 210 is connected to the cooling water pipeline 10. I.e. the one in the form of a ring. After the water flow rate of the cooling water pipeline 10 connected with the descaling agent water tank 220 is greater than or equal to the second flow rate threshold, descaling is completed, and at the moment, the cooling water tank 210 is connected into the cooling water pipeline 10 again so as to dissipate heat of the vacuum pump 1; and the detergent tank 220 is disconnected from the cooling water line 10.
As an alternative to the above embodiment, the first flow threshold is less than the second flow threshold. In general, the first flow threshold corresponds to a minimum value that can be satisfied that the vacuum pump 1 is not operating at a high temperature. Therefore, after descaling is completed, the water flow rate in the cooling water line 10 needs to be increased above the first flow rate threshold value to avoid the cooling water line 10 from scaling again in a short time after descaling is completed. The values of the second flow threshold and the first flow threshold are set by an implementation personnel according to the actual working conditions.
As an alternative to the above embodiment, the controller 280 is further configured to: if the water flow rate of the cooling water pipeline 10 is lower than the first flow rate threshold value, alarming; and if the water flow rate of the detergent water tank 220 connected to the cooling water pipeline 10 is higher than the first flow rate threshold, the alarm is released. The controller 280 may draw attention of an operator to check and determine the clogging of the cooling water line 10, for example, by combining parameters such as pump temperature.
In general, when the controller 280 alarms, the opening degree of the first electronic water valve 250 increases and the water supply amount increases.
If the collected water flow rate is still lower than the first flow rate threshold value while the water supply rate is increased, it can be judged that the cooling water pipeline 10 is blocked; at this time, the first electronic water valve 250 may be controlled to be closed and the second electronic water valve 260 may be controlled to be opened. If the water flow rate of the detergent water tank 220 after being connected to the cooling water pipeline 10 is higher than the first flow rate threshold, the alarm is released; at this time, the dirt in the cooling water line 10 is removed. After the alarm is released, the first electronic water valve 250 still needs to be kept closed, and the second electronic water valve 260 still needs to be kept open, so that the water flow in the cooling water pipeline 10 is higher than the second flow threshold, and fouling is avoided in a short time after descaling.
If the water flow rate collected at the same time of increasing the water supply rate rises to the first flow rate threshold value, it can be judged that the cooling water pipeline 10 is not blocked or dirt is removed under the action of the water flow; at this time, the first electronic water valve 250 may not need to be controlled to be closed and the second electronic water valve 260 may not need to be controlled to be opened.
As an alternative to the above embodiment, as shown in fig. 1 and 4, the cooling water line 10 has a cooling water inlet 11 and a cooling water outlet 12; the first circulation line 230 includes a first water inlet line 232 and a first water outlet line 231; opposite ends of the first water inlet pipe 232 are respectively communicated with the cooling water outlet 12 and the cooling water tank 210; opposite ends of the first water outlet pipe 231 are respectively communicated with the cooling water inlet 11 and the cooling water tank 210; the first electronic water valve 250 is disposed on the first water inlet pipeline 232 and the first water outlet pipeline 231; the second circulation line 240 includes a second water inlet line 242 and a second water outlet line 241; opposite ends of the second water inlet pipeline 242 are respectively communicated with the cooling water outlet 12 and the detergent water tank 220; opposite ends of the second water outlet pipeline 241 are respectively communicated with the cooling water inlet 11 and the detergent water tank 220; the second electronic water valve 260 is disposed on the second water inlet pipeline 242 and the second water outlet pipeline 241.
When the first electronic water valve 250 is opened and the second electronic water valve 260 is closed, the cooling water in the cooling water tank 210 is discharged to the cooling water inlet 11 through the first water outlet pipe, enters the cooling water pipeline 10 from the cooling water inlet 11, then enters the first water inlet pipe (the temperature of the cooling water is increased after the cooling water is absorbed at the moment) through the cooling water outlet 12, and flows back into the cooling water tank 210 to realize the circulation flow of the cooling water. A heat exchanger is provided in the cooling water tank 210 to cool the water after absorbing heat. While the detergent tank 220 is in a disconnected state from the cooling water line 10.
When the first electronic water valve 250 is closed and the second electronic water valve 260 is opened, the cooling water containing the detergent in the detergent water tank 220 is discharged to the cooling water inlet 11 through the second water outlet pipe, enters the cooling water pipeline 10 from the cooling water inlet 11, then enters the second water inlet pipe (the temperature of the cooling water containing the detergent is increased after the cooling water containing the detergent is absorbed at the moment) from the cooling water outlet 12, and flows back to the detergent water tank 220, so that the circulating flow of the cooling water containing the detergent is realized. A heat exchanger may also be provided in the detergent tank 220 for cooling the hot water of the coolant containing detergent. And the cooling water tank 210 is in a disconnected state from the cooling water pipe 10.
In the above embodiment, the electronic water valve control circuit has four paths, and controls the two first electronic water valves 250 and the two second electronic water valves 260 respectively. When the collected water flow is still lower than the first flow threshold, the control instructions generated by the control chip of the controller 280 close the two first electronic water valves 250 and open the two second electronic water valves 260, so that the circulating flow of the detergent cooling water is realized. When the water flow rate of the detergent water tank 220 after being connected to the cooling water pipeline 10 is higher than the second flow rate threshold, the controller 280 generates another control instruction to open the two first electronic water valves 250 and close the two second electronic water valves 260, so as to realize the circulation flow of the cooling water in the cooling tank and complete the descaling.
In addition, a filter may be provided in the detergent tank 220 to filter the coolant containing the detergent to remove impurities. The detergent tank 220 is also provided with a dosing port through which detergent is injected into the detergent tank 220.
In the above embodiment, the cooling water tank 210 and the detergent water tank 220 may be provided with drain pipes, respectively, for discharging sewage. The cooling water tank 210 and the detergent water tank 220 may be provided with water source pipes for supplying clean water to the cooling water tank 210 and the detergent water tank 220, respectively.
In an embodiment, the controller 280 may be configured to directly control the first electronic water valve 250 to be closed and the second electronic water valve 260 to be opened when the water flow rate of the cooling water pipeline 10 is lower than the first flow rate threshold.
In other embodiments, the controller 280 may be configured such that when the water flow rate of the cooling water pipeline 10 is lower than the first flow rate threshold, after the alarm and confirmation are needed, the operator inputs the execution signal to the controller 280, and then the controller 280 controls the first electronic water valve 250 to be closed and the second electronic water valve 260 to be opened. As an alternative implementation of the foregoing embodiment, the controller 280 includes a main control board, a front panel electrically connected to the main control board, and a descaling button disposed on the front panel; the main control board is electrically connected with the first electronic water valve 250 and the second electronic water valve 260. The main control board is configured to: if the water flow rate of the cooling water pipeline 10 is lower than a first flow rate threshold value, and a control instruction is generated after a pressing signal of the descaling button is received; wherein the first electronic water valve 250 is closed in response to the control command and the second electronic water valve 260 is opened in response to the control command. This control facilitates the intervention of the operator in the descaling of the cooling water line 10, and improves the safety to some extent.
In the embodiment, after the descaling button on the front panel is pressed, the pressing signal is transmitted to the main control board after passing through the optocoupler, and the main control board receives the key signal to generate a corresponding control instruction.
For example, if the water flow rate of the cooling water pipe 10 is lower than the first flow rate threshold, the opening degree of the first electronic water valve 250 is increased and the water supply amount is increased while generating an alarm signal. At the moment, an operator can check the descaling device through an alarm signal and observe the water flow after the water supply is increased; the operator can control the first electronic water valve 250 to be closed and the second electronic water valve 260 to be opened by triggering the descaling button through the inspection result of the descaling device and the observation result of the water flow.
As an alternative implementation of the foregoing embodiment, the controller 280 further includes a display screen, where the display screen is electrically connected to the main control board. The display screen may display water flow and alarm information collected by the flow sensor 270, etc. In addition, the display screen may display status information of the cooling water tank 210, the detergent water tank 220, and the vacuum pump 1.
The application also provides a descaling method which is applied to the descaling device, wherein the descaling device comprises a descaling agent water circulation system and a cooling water circulation system; the descaling agent water circulation system and the cooling water circulation system are connected in parallel to the cooling water pipeline 10; the descaling method comprises the following steps:
acquiring the water flow of the cooling water pipeline 10;
and if the water flow rate is lower than a first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline 10, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline 10.
In the technical solution of the present application, under normal working conditions, the cooling water circulation system is connected to the cooling water pipeline 10. The cooling water flows through the cooling water line 10 to cool down the vacuum pump 1. When the water flow rate in the cooling water pipeline 10 is lower than a first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline 10, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline 10. The descaling agent water tank 220 is connected to the cooling water pipeline 10, so that water containing the descaling agent enters the cooling water pipeline 10 to remove dirt in the cooling water pipeline 10, so that the cooling water pipeline 10 is smooth, and the condition that the vacuum pump 1 runs at high temperature for a long time is avoided.
As an alternative implementation of the foregoing embodiment, if the water flow rate is lower than a first flow rate threshold, controlling the cooling water circulation system to be disconnected from the cooling water pipeline 10, and controlling the detergent water circulation system to be connected to the cooling water pipeline 10 includes: if the water flow rate is lower than a first flow rate threshold value, controlling the cooling water circulation system to improve the water supply rate; and if the water flow rate of the cooling water circulation system after the water supply rate is increased is lower than the first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline 10, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline 10.
In an embodiment, if the amount of water in the cooling water line 10 is lower than the first flow threshold, the cooling water circulation system is controlled to increase the water supply amount before the detergent water circulation system is connected to the cooling water line 10. That is, water is supplied to the cooling water pipe 10 by increasing the amount of the supplied cooling water, so that dirt in the cooling water pipe 10 can be physically removed. At this time, water flow of the cooling water circulation system for improving water supply is obtained; and if the water flow rate of the cooling water circulation system after the water supply rate is increased is lower than the first flow rate threshold value, controlling the cooling water circulation system to be connected into the cooling water pipeline 10. That is, after the cooling water circulation system increases the water supply, if the collected water flow is still smaller than the first flow threshold, the detergent water circulation system is controlled to be connected to the cooling water pipeline 10, so as to chemically remove dirt in the cooling water pipeline 10, so that the cooling water pipeline 10 is unblocked.
In an embodiment, the descaling method is performed by the controller 280. The control device comprises at least one processor, at least one memory and a control program of a descaling method stored on the memory and executable on the processor, the control program being configured to implement the steps of the control method as described above. The descaling method specifically comprises the following steps:
acquiring the water flow of the cooling water pipeline 10;
and if the water flow rate is lower than a first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline 10, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline 10.
Further, the method comprises the steps of,
if the water flow rate is lower than a first flow rate threshold value, controlling the cooling water circulation system to be disconnected from the cooling water pipeline 10, and controlling the detergent water circulation system to be connected with the cooling water pipeline 10 comprises: if the water flow rate is lower than a first flow rate threshold value, controlling the cooling water circulation system to improve the water supply rate; and if the water flow rate of the cooling water circulation system after the water supply rate is increased is lower than the first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline 10, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline 10.
The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory is used to store at least one instruction for execution by a processor to implement the descaling method provided by the method embodiments herein.
The foregoing describes in detail a descaling device and a descaling method provided in the embodiments of the present application, and specific examples are applied to illustrate the principles and embodiments of the present invention, and the foregoing examples are only used to help understand the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (10)
1. A descaling device for a vacuum pump, the vacuum pump comprising a cooling water pipeline; the descaling device is characterized by comprising:
a cooling water tank and a detergent water tank;
a first circulation line and a second circulation line; the first circulating pipeline is used for communicating the cooling water tank with the cooling water pipeline; the second circulation pipeline is used for communicating the descaling agent water tank with the cooling water pipeline; the first circulating pipeline and the second circulating pipeline are connected in parallel;
a first electronic water valve and a second electronic water valve; the first electronic water valve is arranged on the first circulating pipeline, and the second electronic water valve is arranged on the second circulating pipeline;
the flow sensor is arranged on the cooling water pipeline and is used for collecting water flow in the cooling water pipeline; and
the controller is electrically connected with the flow sensor, the first electronic water valve and the second electronic water valve respectively and is configured to: acquiring the water flow of the cooling water pipeline; and if the water flow rate of the cooling water pipeline is lower than a first flow rate threshold value, controlling the first electronic water valve to be closed and controlling the second electronic water valve to be opened so that the descaling agent water tank is connected into the cooling water pipeline.
2. The descaling device of claim 1, wherein the controller is further configured to:
before the first electronic water valve is controlled to be closed and the second electronic water valve is controlled to be opened so that the descaling agent water tank is connected to the cooling water pipeline, the opening degree of the first electronic water valve is controlled to be increased;
acquiring water flow after the opening of the first electronic water valve is increased;
and if the water flow rate of the first electronic water valve after the opening degree is increased is lower than the first flow rate threshold value, controlling the first electronic water valve to be closed and the second electronic water valve to be opened so that the descaling agent water tank is connected into the cooling water pipeline.
3. The descaling device of claim 1 or 2, wherein the controller is further configured to:
acquiring water flow of the descaling agent water tank after the descaling agent water tank is connected into the cooling water pipeline;
and if the water flow rate of the descaling agent water tank after being connected into the cooling water pipeline is greater than or equal to a second flow rate threshold value, controlling the first electronic water valve to be opened and the second electronic water valve to be closed so that the cooling water tank is connected into the cooling water pipeline.
4. A descaling device according to claim 3 wherein the first flow threshold is less than the second flow threshold.
5. The descaling device of claim 1, wherein the controller is further configured to:
if the water flow rate of the cooling water pipeline is lower than the first flow rate threshold value, alarming;
and if the water flow rate of the descaling agent water tank after being connected into the cooling water pipeline is higher than the first flow rate threshold value, the alarm is released.
6. The descaling device of claim 1, wherein the cooling water line has a cooling water inlet and a cooling water outlet;
the first circulating pipeline comprises a first water inlet pipeline and a first water outlet pipeline; opposite ends of the first water inlet pipeline are respectively communicated with the cooling water outlet and the cooling water tank; opposite ends of the first water outlet pipeline are respectively communicated with the cooling water inlet and the cooling water tank; the first electronic water valve is arranged on the first water inlet pipeline and the first water outlet pipeline;
the second circulating pipeline comprises a second water inlet pipeline and a second water outlet pipeline; opposite ends of the second water inlet pipeline are respectively communicated with the cooling water outlet and the descaling agent water tank; opposite ends of the second water outlet pipeline are respectively communicated with the cooling water inlet and the descaling agent water tank; the second electronic water valve is arranged on the second water inlet pipeline and the second water outlet pipeline.
7. The descaling device according to claim 1, wherein the controller comprises a main control board, a front panel electrically connected with the main control board, and a descaling button arranged on the front panel; the main control board is electrically connected with the first electronic water valve and the second electronic water valve;
the main control board is configured to: if the water flow rate of the cooling water pipeline is lower than a first flow rate threshold value, and after receiving a pressing signal of the descaling button, generating a control instruction;
wherein the first electronic water valve is closed in response to the control instruction, and the second electronic water valve is opened in response to the control instruction.
8. The descaling device of claim 7, wherein the controller further comprises a display screen electrically connected to the main control panel.
9. The descaling method is applied to a descaling device and is characterized in that the descaling device comprises a descaling agent water circulation system and a cooling water circulation system; the descaling agent water circulation system and the cooling water circulation system are connected in parallel to the cooling water pipeline;
the descaling method comprises the following steps:
acquiring water flow of a cooling water pipeline;
and if the water flow is lower than a first flow threshold, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline.
10. The method of descaling according to claim 9, wherein controlling the cooling water circulation system to be disconnected from the cooling water line if the water flow rate is lower than a first flow rate threshold, the descaling agent water circulation system and the cooling water line to be connected comprises:
if the water flow rate is lower than a first flow rate threshold value, controlling the cooling water circulation system to improve the water supply rate;
and if the water flow rate of the cooling water circulation system after the water supply amount is increased is lower than the first flow rate threshold value, the cooling water circulation system is controlled to be disconnected from the cooling water pipeline, and the descaling agent water circulation system is controlled to be connected with the cooling water pipeline.
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