CN220302319U - Durability verification device for liquid pump - Google Patents
Durability verification device for liquid pump Download PDFInfo
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- CN220302319U CN220302319U CN202322038850.8U CN202322038850U CN220302319U CN 220302319 U CN220302319 U CN 220302319U CN 202322038850 U CN202322038850 U CN 202322038850U CN 220302319 U CN220302319 U CN 220302319U
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- 239000007788 liquid Substances 0.000 title claims abstract description 354
- 238000012795 verification Methods 0.000 title claims abstract description 107
- 230000003044 adaptive effect Effects 0.000 claims abstract description 66
- 238000003860 storage Methods 0.000 claims abstract description 12
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 230000003993 interaction Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 5
- 238000012827 research and development Methods 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 description 14
- 230000001276 controlling effect Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The present disclosure relates to a liquid pump durability verification apparatus, comprising: a liquid storage tank for storing liquid therein; a liquid inlet line for connecting the liquid tank with a liquid pump to be subjected to durability verification so that the liquid pump sucks liquid from the liquid tank; a liquid outlet line for connecting the liquid pump with the liquid reservoir so that the liquid pump returns liquid to the liquid reservoir; a temperature adjusting device for adjusting the temperature of the liquid in the liquid storage tank to a set temperature; an adaptive valve disposed in the liquid outlet line for automatically adjusting the flow of liquid exiting the adaptive valve based on a set pressure; and a pressure monitor disposed in a portion of the outlet line upstream of the adaptive valve for monitoring the pressure of the liquid within the portion. Through the equipment, the durability verification time is shortened, and the research and development and design progress of the liquid pump product and the subsequent use of the product are accelerated.
Description
Technical Field
The present disclosure relates to the field of performance detection technology, and in particular, to a liquid pump durability verification apparatus.
Background
The liquid pump is widely applied to the mechanical manufacturing industry and various engineering constructions. Durability is an important indicator reflecting the life and reliability of a liquid pump, and it is important to verify the durability of a liquid pump, both for the design development process and for subsequent product applications.
Conventionally, durability verification of a liquid pump is performed under a normal temperature and pressure use environment. However, the period of performing durability verification in this use environment is long, and it is difficult to obtain a verification result in a short time, which affects the design development and demonstration process of the product and affects the subsequent application of the product. In addition, in some practical use environments of the liquid pump, high temperature and high pressure conditions exist, and the durability verification mode at normal temperature and normal pressure cannot accurately reflect the actual durability of the liquid pump in the use environments.
Disclosure of Invention
This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
An object of the present disclosure is to provide a liquid pump durability verification apparatus capable of shortening a verification period.
It is still another object of the present disclosure to provide a liquid pump durability verification apparatus capable of accurately performing durability verification of a liquid pump operating under a use environment of high temperature and high pressure.
To achieve one or more of the above objects, there is provided a liquid pump durability verification apparatus comprising:
a liquid storage tank for storing liquid therein;
a liquid inlet line for connecting the liquid tank with a liquid pump to be subjected to durability verification so that the liquid pump sucks liquid from the liquid tank;
a liquid outlet line for connecting the liquid pump with the liquid reservoir so that the liquid pump returns liquid to the liquid reservoir;
a temperature adjusting device for adjusting the temperature of the liquid in the liquid storage tank to a set temperature;
an adaptive valve disposed in the liquid outlet line for automatically adjusting the flow of liquid exiting the adaptive valve based on a set pressure; and
a pressure monitor is provided in a portion of the tapping line upstream of the adaptive valve for monitoring the pressure of the liquid within said portion.
In the above-described liquid pump durability verification apparatus, the adaptive valve may include a hollow valve body including an inlet and an outlet that communicate with the liquid outlet pipe, wherein the outlet is provided at a bottom of the hollow valve body, and a size of the outlet is fixed and set according to the set pressure.
In the above-described liquid pump durability verification apparatus, the self-adaptive valve may include a hollow valve body including an inlet and an outlet communicating with the liquid outlet pipe, a pressure sensor for sensing a pressure of the liquid in the hollow valve body, and a valve needle disposed in the hollow valve body and insertable into the outlet, a lower end of the valve needle being tapered downward and the valve needle communicating with the pressure sensor for automatically adjusting a flow rate of the liquid exiting the outlet by automatically adjusting a depth of insertion of the lower end into the outlet in accordance with the pressure sensed by the pressure sensor, so that the pressure of the liquid in the self-adaptive valve is maintained at a set pressure.
In the above-described liquid pump durability verification apparatus, a collector may be further included, the collector being provided in the liquid outlet line downstream of the adaptive valve, for collecting the liquid flowing out from the adaptive valve.
In the above-described liquid pump durability verification apparatus, the collector may be transparent.
In the above-described liquid pump durability verification apparatus, the adaptive valve and the collector may each be made of a material that is resistant to high temperature and high pressure and corrosion.
In the above-described liquid pump durability verification apparatus, it may further include a filter provided in the liquid inlet pipe for filtering the liquid to be entered into the liquid pump.
In the above-described liquid pump durability verification apparatus, the temperature adjusting means may adjust the temperature of the liquid in the liquid tank in a temperature section so that the temperature varies in a curve.
In the above-described liquid pump durability verification apparatus, a man-machine interaction unit by which the operation parameters and/or start-stop conditions of the liquid pump and the liquid pump can be set may be further included.
In the above-described liquid pump durability verification apparatus, the liquid pump durability verification apparatus may further include an alarm unit that can alarm when the operation parameters of the liquid pump durability verification apparatus and the liquid pump reach set alarm conditions.
According to the present disclosure, by providing a temperature adjusting device for adjusting the temperature of the liquid in the liquid tank and by providing an adaptive valve in the liquid outlet line, a high-temperature and high-pressure use environment is simulated for the liquid pump to be subjected to durability verification so as to perform the durability verification for the liquid pump under the use environment. Therefore, a more accurate durability verification result is obtained for the liquid pump with the actual use environment being a high-temperature and high-pressure environment, and verification time is shortened by accelerating the aging of components in the liquid pump at high temperature and high pressure, so that the research and development of the liquid pump product, the design progress and the subsequent application of the product are accelerated. In addition, the provision of the adaptive valve enables a pressure accumulation region in which the pressure is more stable to be established between the liquid outlet of the liquid pump and the outlet of the adaptive valve, thereby providing a more stable high-pressure verification environment so that a more accurate durability verification result can be obtained.
Drawings
Fig. 1 is a schematic view of a verification portion of a prior art liquid pump durability verification apparatus.
Fig. 2 is a schematic front view of a verification portion of a liquid pump durability verification apparatus according to an embodiment of the present disclosure.
Fig. 3 is a schematic side view of a verification portion of a liquid pump durability verification apparatus according to an embodiment of the present disclosure.
Fig. 4 is a cross-sectional view illustrating an adaptive valve according to an embodiment of the present disclosure.
Fig. 5 is a side view of a liquid pump durability verification apparatus according to an embodiment of the present disclosure.
Fig. 6 is a front view of a liquid pump durability verification apparatus according to an embodiment of the present disclosure.
Detailed Description
The disclosure is described in detail below with the aid of exemplary embodiments with reference to the accompanying drawings. It is noted that the following detailed description of the present disclosure is for purposes of illustration only and is in no way limiting of the present disclosure. Furthermore, the same reference numerals are used to denote the same parts throughout the various figures.
"durability" of a liquid pump as referred to in this disclosure refers to the ability of the liquid pump to retain its original performance without failure during use. That is, the durability may reflect the service life of the liquid pump. Thus, the durability verification of a liquid pump may also be referred to as a life test of the liquid pump.
Referring to fig. 1, a prior art liquid pump durability verification apparatus is schematically shown. In general, the liquid pump durability verification apparatus may be configured to perform durability verification for a plurality of liquid pumps at the same time, and includes an electric part for supplying power to the verification part, such as a power PLC relay or the like, and an electric cabinet for accommodating the verification part and the electric part, in addition to the verification part for a single liquid pump shown in fig. 1. Next, for convenience of explanation of the verification principle of the liquid pump durability verification apparatus of the present disclosure, only a verification portion for a single liquid pump is shown here.
As shown in fig. 1, the liquid pump durability verification apparatus includes: a tank 100 for storing a liquid; a liquid inlet line 300 and a liquid outlet line 400 for connecting the liquid tank 100 with the liquid pump 200 to be subjected to durability verification to form a circulation circuit in which liquid flows; a motor control module 500 for controlling a motor of the liquid pump 200; and a solenoid control module 600 for controlling the solenoid of the liquid pump 200.
The motor is used for liquid feeding and discharging of the liquid pump, and the electromagnet is used for emptying the liquid pump 200, the liquid feeding pipeline 300 and the liquid discharging pipeline 400 after the liquid pump 200 is stopped, so as to prevent the pipelines from being damaged due to icing. Corresponding operating parameters, such as frequency, voltage, duty cycle, etc., may be set on the motor control module 500 for the corresponding liquid pump.
When the durability verification of the liquid pump is started, the liquid pump 200 is started to suck the liquid at normal temperature from the liquid tank 100 into the liquid pump 200 via the liquid inlet pipe 300, and then the liquid is conveyed back to the liquid tank 100 via the liquid outlet pipe 400, thereby simulating the use environment of the liquid pump 200 at normal temperature and pressure. However, in general, the liquid pump keeps working normally for a long time under normal working conditions of normal temperature and normal pressure, and the performance degradation process is slow, so that the verification period is long, and the verification result is difficult to obtain in a short time, so that the research and development and design process of the liquid pump product are affected, and the subsequent use of the product is also affected.
In addition, some practical use environments of the liquid pump are high-temperature and high-pressure environments, and the durability verification mode at normal temperature and normal pressure cannot accurately reflect the actual durability of the liquid pump in the practical high-temperature and high-pressure use environments. If a liquid pump product that has not been accurately validated for durability is put into use, there is a risk that the product cannot be stably operated for a long period of time in an actual use environment.
In order to solve the above-described problems, in an embodiment of the present disclosure, a liquid pump durability verification apparatus is proposed that performs durability verification of a liquid pump by simulating a high-temperature and high-pressure use environment for the liquid pump product that is higher than a normal-temperature and normal-pressure use environment. Therefore, the aging time of components in the liquid pump can be converted to obtain the service life of the liquid pump in the normal-temperature and normal-pressure use environment, so that the verification time can be shortened.
Next, a liquid pump durability verification apparatus according to an embodiment of the present disclosure will be described in detail with reference to fig. 2 to 6.
As shown in fig. 2 and 3, the liquid pump durability verification apparatus 1 includes:
a liquid storage tank 10 for storing liquid therein;
a liquid inlet line 11 for connecting the liquid tank 10 with a liquid pump 12 to be subjected to durability verification so that the liquid pump 12 sucks liquid from the liquid tank 10; and
a liquid outlet line 13 for connecting the liquid pump 12 with the liquid reservoir 10 so that the liquid pump 12 returns liquid to the liquid reservoir 10.
The liquid inlet line 11 and the liquid outlet line 13 together with the liquid pump 12 and the liquid reservoir 10 form a circulation circuit in which liquid flows. Similar to the case shown in fig. 1, the liquid pump durability verification apparatus 1 may further include a motor control module 20 for controlling the motor of the liquid pump 12 and an electromagnet control module 30 for controlling the electromagnet of the liquid pump 12.
In the embodiment of the present disclosure, the liquid pump durability verification apparatus 1 further includes:
a temperature adjusting device 14 for adjusting the temperature of the liquid in the liquid tank 10 to a set temperature;
an adaptive valve 15 provided in the liquid outlet line 13 for automatically adjusting the flow rate of the liquid leaving the adaptive valve 15 based on the set pressure; and
a pressure monitor 16, which is arranged in the portion of the tapping line 13 upstream of the adaptive valve 15, for monitoring the pressure of the liquid in this portion.
Specifically, the temperature control device 14 can obtain a high-temperature liquid by heating the liquid in the liquid tank 10 to a set temperature, and the high-temperature use environment at the set temperature can be simulated for the liquid pump by the flow of the high-temperature liquid in the circulation circuit. Illustratively, the temperature regulating device 14 may include a heating device for heating the liquid in the tank 10 and a temperature sensor for sensing the temperature of the liquid in the tank 10.
The adaptive valve 15 is adapted with respect to the liquid within the adaptive valve 15 at a set pressure by automatically adjusting the flow of the liquid leaving the adaptive valve 15 (i.e. the outlet from the adaptive valve 15). That is, the adaptive valve 15 maintains the liquid in the adaptive valve 15 (and the liquid in the portion of the liquid outlet line 13 upstream of the adaptive valve 15 that communicates with the adaptive valve 15) at a set pressure at all times by automatically adjusting the flow rate of the liquid that leaves the adaptive valve 15. By providing the adaptive valve 15 in the liquid outlet pipe 13, a pressure accumulating area can be formed between the liquid outlet of the liquid pump 12 and the outlet of the adaptive valve 15, and the pressure of the liquid in the pressure accumulating area is at the set pressure. In other words, the pressure accumulating region is formed to include the portion of the liquid outlet pipe 13 upstream of the adaptive valve 15 and the space of the adaptive valve 15 for accommodating the liquid in communication with the inlet and the outlet of the adaptive valve 15. Thus, the high-pressure use environment at the set pressure can be simulated for the liquid pump.
The pressure in the above-mentioned accumulation zone can be monitored by a pressure monitor 16 arranged in the portion of the tapping line 13 upstream of the adaptive valve 15. That is, the pressure monitor 16 may directly monitor the pressure at the outlet of the liquid pump 12. In the case where the liquid pump 12 is aged to cause leakage of internal components or in other cases where the liquid pump 12 is unable to output a stable pressure, fluctuation in the pressure of the accumulation area occurs, and when the fluctuation in the pressure exceeds a set value, the liquid pump is considered to have leaked, and thus the durability verification of the liquid pump can be completed. It will be appreciated that the pressure monitor 16 may be a pressure sensor or other form of device for monitoring pressure.
In the above manner, the liquid pump durability verification apparatus 1 according to the embodiment of the present disclosure simulates a high-temperature and high-pressure use environment for the liquid pump 12 to be subjected to durability verification so as to perform the durability verification of the liquid pump 12 under the use environment. Therefore, a more accurate durability verification result can be obtained for the liquid pump with the actual use environment being a high-temperature and high-pressure environment, and the ageing of components in the liquid pump can be accelerated through high temperature and high pressure to shorten the verification time, so that the research and development of the liquid pump product, the design progress and the subsequent application of the product can be accelerated.
It will be appreciated that the adaptive valve is capable of establishing a more stable pressure accumulation zone between the liquid pump outlet and the adaptive valve outlet, thereby providing a more stable high pressure verification environment, compared to conventional valves, so that a more accurate durability verification result can be obtained.
In the embodiment of the present disclosure, as shown in fig. 4, the adaptive valve 15 may include a hollow valve body 151, the hollow valve body 151 including an inlet 151a and an outlet 151b communicating with the liquid outlet line 13, wherein the outlet 151b is provided at the bottom of the hollow valve body 151, and the size of the outlet 151b is fixed and set according to the above-described set pressure.
Liquid enters the hollow valve body 151 from the liquid outlet pipe 13 through the inlet 151a and flows out of the hollow valve body 151 through the outlet 151 b. When the flow rate of the liquid flowing out from the liquid outlet of the liquid pump 12 is larger than the flow rate of the liquid flowing out from the outlet 151b of the adaptive valve 15, a pressure accumulation area is formed between the liquid outlet of the liquid pump 12 and the outlet 151b of the adaptive valve 15. With the above-constructed adaptive valve 15, it is understood that when the pressure in the pressure accumulating region becomes large, the speed at which the liquid flows out of the outlet 151b becomes large, i.e., the flow rate of the liquid flowing out of the outlet 151b becomes large, and when the pressure in the pressure accumulating region becomes small, the speed at which the liquid flows out of the outlet 151b becomes small, i.e., the flow rate of the liquid flowing out of the outlet 151b becomes small. Therefore, in the case where the size of the outlet 151b is made to be fixed, by setting the size of the outlet 151b, the pressure of the accumulator can be maintained at a fixed value or at least a fixed range determined based on the size of the outlet. On the other hand, the size of the outlet 151b may be set according to the set pressure to be maintained in the pressure accumulating region, thereby realizing adaptation with respect to the set pressure.
Other implementations of the adaptive valve are also contemplated.
For example, the adaptive valve may include a hollow valve body including an inlet and an outlet communicating with the liquid outlet line 13, a pressure sensor for sensing a pressure of the liquid in the hollow valve body, a valve needle disposed in the hollow valve body and insertable into the outlet, a lower end of the valve needle being tapered downward and the valve needle communicating with the pressure sensor for automatically adjusting a flow rate of the liquid exiting the outlet by automatically adjusting a depth of insertion of the lower end into the outlet according to the pressure sensed by the pressure sensor so that the pressure of the liquid in the adaptive valve is maintained at a set pressure.
In this case, the pressure accumulation zone comprises the part of the liquid outlet line 13 upstream of the adaptive valve and the space of the hollow valve body for containing the liquid. The pressure of the liquid in the hollow valve body sensed by the pressure sensor is the pressure of the liquid in the pressure accumulation area, that is, the pressure at the liquid outlet of the liquid pump 12. By having the pressure sensor in communication with the valve needle, when the pressure sensor senses that the pressure is not equal to the set pressure, the valve needle automatically adjusts the depth of insertion of its tapered lower end into the outlet to adjust the pressure of the liquid in the accumulation zone by adjusting the flow rate of the liquid exiting the outlet, thereby achieving an adaptation based on the set pressure. For example, when the pressure sensed by the pressure sensor is less than the set pressure, the tapered lower end is further inserted into the outlet to reduce the flow rate of the liquid exiting the outlet, thereby increasing the pressure of the liquid in the accumulation area until it is equal to the set pressure. On the other hand, when the pressure sensed by the pressure sensor is greater than the set pressure, the tapered lower end is lifted up in the outlet to increase the flow rate of the liquid exiting the outlet, thereby decreasing the pressure of the liquid in the accumulation area until it is equal to the set pressure.
In an embodiment of the present disclosure, as shown in fig. 2 and 3, the liquid pump durability verification apparatus 1 may further include a collector 17, the collector 17 being disposed in the liquid outlet line 13 downstream of the adaptive valve 15 for collecting the liquid flowing out of the adaptive valve 15.
Since the accumulation area at high pressure is formed by the arrangement of the adaptive valve 15, the liquid flowing out of the adaptive valve 15 has a certain pressure, i.e. the liquid may flow out of the outlet in the form of a spray. In this case, if the discharged liquid is directly discharged to the liquid storage tank 10 through the liquid outlet pipe 13, the gas content in the liquid storage tank 10 is greatly increased, so that a large amount of air is generated in the liquid inlet pipe 11 and the liquid outlet pipe 13, which affects the operation of the device components and finally adversely affects the durability verification. By providing the collector 17 downstream of the adaptive valve 15, liquid flowing out of the outlet of the adaptive valve 15 will first enter the collector 17, whereby direct injection of liquid into the tank 10 and thus generation of a large amount of air in the tank 10 can be avoided.
In embodiments of the present disclosure, the collector 17 may be transparent.
By providing the collector 17 transparent, it is possible to facilitate observation of the flow of liquid into the collector 17. When the output pressure of the liquid pump 12 becomes small, for example, when the liquid pump 12 is aged to cause leakage of internal components and thus the output pressure becomes small, there may occur a case where the liquid outflow of the adaptive valve has been minimized (for example, the outlet of the adaptive valve is blocked by the valve needle), the liquid pump 12 is still in an operating state to always output the pressure and the pressure of the accumulation area is just equal to the set pressure, that is, a false endurance phenomenon where the equipment verification still exhibits durability in the case where a problem has occurred in the liquid pump. By observing the transparent collector 17 to determine the condition of the outflow of the adaptive valve 15, this false endurance phenomenon can be prevented. For example, when the liquid pump 12 is operating stably, the liquid output of the adaptive valve 15 is usually kept at a constant level, and when the liquid pump 12 ages and thus internal components leak, the outlet of the adaptive valve 15 may be blocked or even dead to some extent, so that the liquid output of the adaptive valve 15 is significantly reduced or even prevented.
It is contemplated that the adaptive valve 15 and the collector 17 are both made of a material that is resistant to high temperatures and pressures and is resistant to corrosion.
The liquid evaporates at high temperatures and the vapor can cause corrosion to the devices and components through which it flows. By making the adaptive valve 15 and the collector 17 of materials that are resistant to high temperature and high pressure and corrosion, the risk of damage to them due to harsh use environments can be reduced or even avoided, and the stability and reliability of the operation of the device can be improved.
In an embodiment of the present disclosure, as shown in fig. 2, the liquid pump durability verification apparatus 1 may further include a filter 18, the filter 18 being provided in the liquid inlet pipe 11 for filtering the liquid to be entered into the liquid pump 12.
In the case where the liquid in the tank 10 contains impurities, the filter 18 may filter the impurities in the liquid before the liquid enters the liquid pump 12 via the liquid inlet line 11 to prevent the impurities from entering the liquid pump 12 and thereby damaging the liquid pump 12.
In the embodiment of the present disclosure, the temperature adjusting device 14 can adjust the temperature of the liquid in the liquid storage tank 10 in a temperature interval so that the temperature changes in a curve shape.
By having the temperature of the liquid in the tank change in a curvilinear fashion, the flexibility of temperature change is increased, enabling durability verification of the liquid pump in more complex temperature use environments.
It is contemplated that the temperature adjustment device may have a temperature adjustment range of 0-100 degrees celsius to provide test conditions for this temperature interval. Furthermore, it is contemplated that the temperature regulating device 14 may maintain the temperature of the liquid in the tank 10 constant.
Referring to fig. 5 and 6, there is shown an entire liquid pump durability verification apparatus 1 including an electric cabinet and a verification section installed in the electric cabinet. The liquid pump durability verification apparatus 1 includes a plurality of verification sections for simultaneously performing durability verification for a corresponding plurality of liquid pumps (20 are shown). It can be seen that the 20 liquid pumps are equally divided into two groups, with each group of liquid pumps sharing a tank and the plurality of liquid pumps in a row sharing a collector.
In an embodiment of the present disclosure, the liquid pump durability verification device 1 may include a human-machine interaction unit by means of which the operation parameters and/or start-stop conditions of the liquid pump durability verification device 1 and the liquid pump 12 can be set.
These operating parameters may include the monitoring threshold of the pressure monitor 16 of the liquid pump durability verification device 1, the adjustable pressure range, i.e. set pressure, of the adaptive valve 15, the set temperature of the liquid in the tank 10, etc., as well as the frequency, voltage, duty cycle, etc. of the liquid pump 12. Further, the start-stop conditions may include a start-stop condition of the thermostat 14, a start-stop condition of the motor of the liquid pump 12, a start-stop condition of the electromagnet, and the like. The automatic start-stop control of the motor and the electromagnet can be realized by setting the start-stop conditions of the motor and the electromagnet.
It is understood that the man-machine interaction unit refers to a unit by means of which man-machine interaction is enabled. As shown in fig. 5 and 6, the man-machine interaction unit may include a man-machine interaction interface 19 and a corresponding plurality of motor control modules 20 for a plurality of liquid pumps to be durability verified of the liquid pump durability verification apparatus 1 thereunder. For example, the operating parameters of the liquid pump durability verification device 1 and the start-stop conditions of the liquid pump 12 and the liquid pump durability verification device 1 may be set by means of the human-machine interface 19, and the operating parameters of the respective liquid pumps 12 may be set by means of the control module 20. The start-stop conditions of the motor and the electromagnet set by means of the man-machine interface 19 can be sent to the motor control module 20 and the electromagnet control module 30, respectively, to thereby realize automatic start-stop control of the motor and the electromagnet.
After the operation parameters and start-stop conditions of the liquid pump durability verification device and the liquid pump are set through the man-machine interaction unit, the corresponding verification part and the liquid pump, namely the corresponding station can be started. For example, the temperature of the liquid in the liquid storage tank can be adjusted to a set temperature, then the liquid pump is started to enable the liquid to flow in the circulation loop, the self-adaptive valve is adaptively adjusted based on the set pressure, and when the pressure of the liquid in the pressure accumulation area reaches the set pressure, the durability verification of the liquid pump under the high-temperature and high-pressure use environment with the set temperature and pressure is started.
In an embodiment of the present disclosure, the liquid pump durability verification apparatus 1 may further include an alarm unit (not shown) capable of alarming when the operation parameters of the liquid pump durability verification apparatus 1 and the liquid pump 12 reach set alarm conditions.
By the mode, the user can be reminded to intervene in the alarming condition in time, and the conditions such as equipment damage and the like are avoided. It is contemplated that the alarm unit may also shut down the liquid pump durability verification device and the liquid pump at the same time as the alarm. Thus, when the liquid pump is clogged or leaked or exploded, the risk and extent of protecting the liquid pump durability verification apparatus and the liquid pump from damage can be reduced, and the influence on the external environment and personnel can be reduced.
The operating parameters relating to the alarm condition may comprise, for example, the concentration of the liquid, the temperature of the liquid in the tank, the rotational speed of the motor of the liquid pump, the pressure in the accumulation zone, etc.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the disclosure are intended to be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A durability verification apparatus for a liquid pump, comprising:
a liquid storage tank for storing liquid therein;
a liquid inlet line for connecting the liquid tank with a liquid pump to be subjected to durability verification so that the liquid pump sucks the liquid from the liquid tank;
a liquid outlet line for connecting the liquid pump with the liquid reservoir so that the liquid pump returns the liquid to the liquid reservoir;
a temperature adjusting device for adjusting the temperature of the liquid in the liquid storage tank to a set temperature;
an adaptive valve disposed in the outlet line for automatically adjusting the flow of the liquid exiting the adaptive valve based on a set pressure; and
a pressure monitor is provided in a portion of the tapping line upstream of the adaptive valve for monitoring the pressure of the liquid within the portion.
2. The apparatus according to claim 1, characterized in that the adaptive valve includes a hollow valve body including an inlet and an outlet communicating with the liquid outlet pipe, wherein the outlet is provided at a bottom of the hollow valve body, and a size of the outlet is fixed and set according to the set pressure.
3. The liquid pump durability verification apparatus according to claim 1, wherein the adaptive valve includes a hollow valve body including an inlet and an outlet communicating with the liquid outlet pipe, a pressure sensor for sensing a pressure of the liquid in the hollow valve body, and a needle provided in the hollow valve body and insertable into the outlet, a lower end of the needle being tapered downward and the needle communicating with the pressure sensor for automatically adjusting a flow rate of the liquid leaving the outlet by automatically adjusting a depth of insertion of the lower end into the outlet according to the pressure sensed by the pressure sensor, so that the pressure of the liquid in the adaptive valve is maintained at the set pressure.
4. A liquid pump durability verification apparatus according to any one of claims 1 to 3 further comprising a collector disposed in said liquid outlet line downstream of said adaptive valve for collecting said liquid flowing from said adaptive valve.
5. The liquid pump durability verification apparatus according to claim 4 wherein the collector is transparent.
6. The liquid pump durability verification apparatus according to claim 4 wherein said adaptive valve and said collector are each made of a material that is resistant to high temperature and high pressure and corrosion.
7. A liquid pump durability verification apparatus according to any one of claims 1 to 3 further comprising a filter provided in said liquid inlet line for filtering said liquid to be entered into said liquid pump.
8. A liquid pump durability verification apparatus according to any one of claims 1 to 3 wherein said temperature adjustment means is capable of adjusting the temperature of said liquid in said liquid storage tank within a temperature interval so as to vary said temperature in a curve.
9. A liquid pump durability verification apparatus according to any one of claims 1-3 further comprising a human-machine interaction unit by means of which the operation parameters and/or start-stop conditions of the liquid pump and the liquid pump can be set.
10. A liquid pump durability verification apparatus according to any one of claims 1 to 3 further comprising an alarm unit capable of alerting when the liquid pump durability verification apparatus and the operating parameters of the liquid pump reach a set alarm condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322038850.8U CN220302319U (en) | 2023-07-31 | 2023-07-31 | Durability verification device for liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322038850.8U CN220302319U (en) | 2023-07-31 | 2023-07-31 | Durability verification device for liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220302319U true CN220302319U (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322038850.8U Active CN220302319U (en) | 2023-07-31 | 2023-07-31 | Durability verification device for liquid pump |
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| Country | Link |
|---|---|
| CN (1) | CN220302319U (en) |
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- 2023-07-31 CN CN202322038850.8U patent/CN220302319U/en active Active
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