CN112594165A - Unpowered anti-surge device, compression equipment and method - Google Patents
Unpowered anti-surge device, compression equipment and method Download PDFInfo
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- CN112594165A CN112594165A CN202011332448.5A CN202011332448A CN112594165A CN 112594165 A CN112594165 A CN 112594165A CN 202011332448 A CN202011332448 A CN 202011332448A CN 112594165 A CN112594165 A CN 112594165A
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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
- F04B39/0027—Pulsation and noise damping means
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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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- 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
- F04B39/10—Adaptations or arrangements of distribution members
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Abstract
The application discloses unpowered surge preventing device, compression equipment and method, wherein, the device need not external power drive, can form the air current passageway according to the air current temperature is automatic through setting up the first expansion module and the second expansion module of different temperature expansion rates, thereby circulate the air current in the cooler outlet pipe to the intake pipe department of cooler, thereby reduce the air current temperature, and then avoid the higher problem that leads to the outlet temperature of the cooler of one-level behind of outlet temperature of the cooler of preceding stage, the emergence of surge phenomenon has just also been avoided. Meanwhile, the anti-surge device in the application has a simple result, and can realize automatic circulation of air flow without operation.
Description
Technical Field
The application relates to the technical field of anti-surge, in particular to an unpowered anti-surge device, compression equipment and method.
Background
In the operation of gas compression equipment such as an air compressor and the like, if the surge phenomenon occurs in the equipment, the subsequent operation performance is reduced, so that the service life of a unit is reduced, and the surge phenomenon possibly causes the equipment damage, so that inconvenience is brought to production, and even accidents are caused. Therefore, at present, the anti-surge technology is valued and studied by many scholars, and various ideas are proposed.
In the research process, considering that the surging can only be found out qualitatively, but not quantitatively, and the possibility of surging generation is increased along with the change of the operation condition, how to prevent surging based on the change of qualitative parameters becomes an important problem.
The reasons for causing surge are many, and the obvious reasons are that the flow rate of inlet airflow is low, the temperature is high, and an interstage cooler is not cooled to a certain level, and the conventional anti-surge thought is to lead downstream air back to the upstream or stop the air compressor for maintenance in advance through a measurement and control system, but the surge margin under the thought is large, the use efficiency of the gas compressor is low, the measurement and control requirement is high, and the stable operation of the gas compressor is not facilitated. Meanwhile, the measurement and control system is complex in structure, so that the production cost is increased, and the subsequent maintenance difficulty is improved.
Disclosure of Invention
The application provides an unpowered anti-surge device, compression equipment and a method, which are used for solving the technical problems of complex anti-surge structure, low efficiency and difficult operation.
In view of this, the first aspect of the present application provides an unpowered surge protection device, which is applied to a gas compression apparatus, the gas compression apparatus includes a cooler, the cooler is provided with an air inlet pipe and an air outlet pipe, and the surge protection device includes: an automatic surge prevention valve and a bypass pipeline;
the first end of the automatic surge-proof valve is communicated with the side wall of the air outlet pipe, and the second end of the automatic surge-proof valve is communicated with the side wall of the air inlet pipe through the bypass pipeline;
the automatic anti-surge valve comprises an anti-surge valve pipeline, a first expansion module and a second expansion module, wherein the temperature expansion rate of the first expansion module is greater than that of the second expansion module, the first expansion module is arranged close to the air outlet pipe relative to the second expansion module, and when the temperature of the air flow of the air outlet pipe is not greater than the preset temperature, the second expansion module is in sealing connection with the inner wall of the anti-surge valve pipeline; when the temperature of the air flow of the air outlet pipe is higher than the preset temperature, the first expansion module is expanded and deformed so as to drive the first expansion module to contract and deform or displace relative to the inner wall of the surge-proof valve pipeline, and an air flow channel is formed between the first expansion module and the inner wall of the surge-proof valve pipeline.
Preferably, a check valve is arranged on the bypass pipeline.
Preferably, the device further comprises a fan, a control module, a temperature sensor and an airflow sensor, wherein the fan is arranged on the bypass pipeline, the air outlet direction of the fan faces the direction of the air inlet pipe, the temperature sensor and the airflow sensor are electrically connected with the control module, and the control module is electrically connected with the fan.
Preferably, the first expansion module is a first valve cover, the second expansion module comprises a second valve cover and a first annular sealing cover, the second valve cover is arranged close to the first valve cover relative to the annular sealing cover, the first annular sealing cover is provided with a first gap, the first gap is communicated with the bypass pipeline, and the second valve cover is arranged corresponding to the separation between the outer edge of the first gap and the inner wall of the anti-surge valve pipeline.
Preferably, the first valve cover is provided with a second notch relative to the inner wall of the surge-proof valve pipeline and corresponding to the valve cover body of the first notch.
Preferably, the first expansion module is an expansion support rod, the second expansion module includes a third valve cover and a second annular sealing cover, the second annular sealing cover is disposed close to the expansion support rod relative to the third valve cover, a first end of the expansion support rod is fixedly connected to a first connection point at the bottom end of the third valve cover, a second end of the expansion support rod is fixedly connected to a second connection point on the inner wall of the anti-surge valve pipe, the second connection point is disposed close to the air outlet pipe relative to the first connection point, and a portion of the third valve cover and the second annular sealing cover are disposed separately.
Preferably, the first connection point does not coincide with a central point of a bottom end of the third valve cover, a part of an outer edge of the third valve cover, which is far away from the first connection point, is fixedly connected with the second annular sealing cover, and a part of an outer edge of the third valve cover, which is close to the first connection point, is separately arranged from the second annular sealing cover.
In a second aspect, the application further provides unpowered surge-proof compression equipment, which comprises a plurality of compression main bodies, wherein a cooler is arranged between the compression main bodies, and the cooler is provided with the unpowered surge-proof device.
In a third aspect, the present application further provides a unpowered anti-surge method, which applies the unpowered anti-surge device, and comprises the following steps:
the method comprises the following steps: receiving the airflow flowing out of the air outlet pipe of the cooler through a first expansion module;
step two: comparing the temperature of the airflow with a preset temperature through the first expansion module, and when the temperature of the airflow is higher than the preset temperature, performing expansion deformation to drive the first expansion module to perform contraction deformation or displacement relative to the inner wall of the surge-proof valve pipeline, so that an airflow channel is formed between the first expansion module and the inner wall of the surge-proof valve pipeline, and the airflow passes through the airflow channel;
step three: after the airflow which circulates through the airflow channel is received through the bypass pipeline, the airflow is guided to the air inlet pipe of the cooler so as to reduce the airflow temperature of the air inlet pipe, and therefore the airflow temperature of the air outlet pipe is reduced.
Further, the third step is followed by: and repeating the first step to the third step until the temperature of the airflow which flows out of the air outlet pipe of the cooler and is received by the first expansion module is not higher than the preset temperature, and restoring the first expansion module and the second expansion module to the original shapes, so that the second expansion module is connected with the inner wall of the pipeline of the anti-surge valve in a sealing mode.
According to the technical scheme, the embodiment of the application has the following advantages:
the anti-surge device is used for solving the technical problems of complex anti-surge structure, low efficiency and difficult operation.
The embodiment of the application provides a pair of unpowered surge preventing device, need not the external power drive, first expansion module and the second expansion module through setting up different temperature expansion rates can form the air current passageway according to the air current temperature is automatic, thereby circulate the air current in the cooler outlet pipe to the intake pipe department of cooler, thereby reduce the air current temperature, and then avoid the higher problem that leads to the outlet temperature of the cooler of back level of outlet temperature of preceding stage's cooler, the emergence of surge phenomenon has just also been avoided. Meanwhile, the anti-surge device in the application has a simple result, and can realize automatic circulation of air flow without operation. The unpowered anti-surge compression device and the unpowered anti-surge method both provided by the embodiment of the application apply the unpowered anti-surge device in the embodiment, and the beneficial effects are consistent with the embodiment.
Drawings
FIG. 1 is a first schematic structural view of an unpowered surge protection device provided in accordance with a first embodiment of the present application;
FIG. 2 is a cross-sectional view of an automatic surge prevention valve in a non-powered anti-surge apparatus according to a second embodiment of the present application;
FIG. 3 is an enlarged view taken at A of FIG. 2 of the present application;
FIG. 4 is a top view of an automatic surge prevention valve in a non-powered anti-surge apparatus according to a second embodiment of the present application;
FIG. 5 is a cross-sectional view of another automatic surge prevention valve in an unpowered anti-surge device provided in accordance with a second embodiment of the present application;
FIG. 6 is a cross-sectional view of another automatic surge prevention valve in a unpowered anti-surge device according to a third embodiment of the present application;
FIG. 7 is a top view of another automatic surge prevention valve in an unpowered anti-surge device according to a third embodiment of the present application;
FIG. 8 is a schematic diagram of a second structure of an unpowered surge protection device according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a third structure of an unpowered surge protection device according to an embodiment of the present application;
FIG. 10 is a schematic structural diagram of an unpowered surge-preventing compression device provided by an embodiment of the present application;
fig. 11 is a flowchart of an unpowered anti-surge method according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Before the surge phenomenon happens, the parameters of the gas compression equipment can change, wherein the most intuitive parameter change is the air flow temperature, namely the outlet temperature of the cooler at the front stage is higher, so that the outlet temperature of the cooler at the rear stage is higher, and the surge phenomenon happens.
Based on the above situation, the present application provides an unpowered anti-surge device, which, for convenience of understanding, refers to fig. 1, and is applied to a gas compression apparatus, the gas compression apparatus includes a cooler 100, the cooler 100 is provided with an inlet pipe 101 and an outlet pipe 102, and the anti-surge device includes: the automatic surge prevention valve 200 and the bypass line 300;
a first end of the automatic surge-proof valve 200 is communicated with the side wall of the outlet pipe 102, and a second end of the automatic surge-proof valve 200 is communicated with the side wall of the inlet pipe 101 through a bypass pipe 300;
the automatic anti-surge valve 200 comprises an anti-surge valve pipeline, a first expansion module and a second expansion module, wherein the temperature expansion rate of the first expansion module is greater than that of the second expansion module, the first expansion module is arranged close to the air outlet pipe 102 relative to the second expansion module, and when the temperature of the air flow of the air outlet pipe 102 is not greater than the preset temperature, the second expansion module is in sealing connection with the inner wall of the anti-surge valve pipeline; when the temperature of the air flow of the air outlet pipe 102 is higher than the preset temperature, the first expansion module is expanded and deformed so as to drive the first expansion module to contract and deform or shift relative to the inner wall of the anti-surge valve pipeline, and an air flow channel is formed between the first expansion module and the inner wall of the anti-surge valve pipeline.
It should be noted that, the first expansion module and the second expansion module, which meet the expansion rate of the normal airflow critical temperature, are selected according to the pre-obtained normal airflow critical temperature, wherein during the temperature raising process, the expansion speed of the first expansion module is faster than the expansion speed of the second expansion module, and at the same time, the expansion size of the first expansion module is larger than that of the second expansion module, so that when the airflow temperature of the outlet pipe 102 is not higher than the preset temperature (normal airflow critical temperature), the first expansion module expands and deforms first, the second expansion module expands and deforms later relative to the first expansion module, so that after the first expansion module expands and deforms, the second expansion module is driven to contract and deform or displace relative to the inner wall of the surge-proof valve pipe, thereby forming an airflow channel between the first expansion module and the inner wall of the surge-proof valve pipe, so that the airflow can pass through the airflow channel, the air flow passes through the bypass pipeline 300 to the air inlet pipe 101 of the cooler 100, so as to be mixed with the original air flow in the air inlet pipe 101, the temperature of the air flow at the air inlet pipe 101 of the cooler 100 is reduced, the air flow is cooled again through the cooler 100, the temperature of the air flow at the air outlet pipe 102 of the cooler 100 is lower than that of the air flow circulating last time, until the temperature of the air flow at the air outlet pipe 102 of the cooler 100 is less than or equal to a preset temperature (normal critical temperature of air flow), the first expansion module and the second expansion module are both restored, and the second expansion module is connected with the inner wall of the surge-proof valve pipeline in.
Therefore, the present embodiment does not need power driving, and the first expansion module and the second expansion module which are set to have different temperature expansion rates can automatically form an airflow channel according to the airflow temperature, so as to circulate the airflow to the air inlet pipe 101 of the cooler 100 to reduce the airflow temperature, thereby avoiding the problem that the outlet temperature of the cooler 100 at the previous stage is higher and the outlet temperature of the cooler 100 at the next stage is higher, and also avoiding the occurrence of surge.
The above is a detailed description of a first embodiment of an unpowered anti-surge device provided by the present invention, and the following is a detailed description of a second embodiment of an unpowered anti-surge device provided by the present invention.
For convenience of understanding, referring to fig. 2 to 4, the unpowered surge protection device according to the embodiment of the present application is different from the first embodiment in that the first expansion module is a first valve cover 204, the second expansion module includes a second valve cover 203 and a first annular sealing cover 202, the second valve cover 203 is disposed adjacent to the first valve cover 204 relative to the annular sealing cover, the first annular sealing cover 202 is provided with a first gap, the first gap is communicated with the bypass pipe 300, and the second valve cover 203 is disposed separately from the inner wall of the surge protection valve pipe 201 corresponding to an outer edge of the first gap.
It can be understood that the first valve cover 204 receives the air flow in the outlet pipe 102 relative to the second valve cover 203, when the temperature of the air flow is not higher than the preset temperature, the first valve cover 204 and the second valve cover 203 do not change, the second valve cover 203 and the annular sealing cover are in a sealing connection state with the inner wall of the anti-surge valve pipe 201, and a first gap does not occur; and when the air temperature is greater than the preset temperature, the air temperature can make the first valve cover 204 expand, and the second valve cover 203 also expands, because the expansion rate of the first valve cover 204 is greater than that of the second valve cover 203, therefore, after the expansion deformation, the first valve cover 204 and the second valve cover 203 both bulge upwards or sag downwards, because the second valve cover 203 is arranged separately between the outer edge corresponding to the first gap and the inner wall of the surge-proof valve pipeline 201, when the bulge upwards or sag downwards, the first gap can be communicated with the air outlet pipe 102, and then the air flow can flow to the bypass pipeline 300 from the first gap, then to the air inlet pipe 101, and then to reduce the air temperature.
Then, after the air flow is cooled circularly, when the temperature of the air flow is not greater than the preset temperature, the first valve cover 204 and the second valve cover 203 can be restored, so that the second valve cover 203 covers the first gap again, and the air flow is stopped from flowing through the first gap.
It should be noted that, because the first valve cover 204 and the second valve cover 203 have different temperature expansion rates, in practical implementation, the first gap appears after the first valve cover 204 and the second valve cover 203 can be raised upwards or depressed downwards by setting the difference between the temperature expansion rates of the first valve cover 204 and the second valve cover 203.
Further, in order to improve the connectivity between the expanded and deformed first notch and the outlet pipe 102, referring to fig. 5, on the basis of this embodiment, the first bonnet 204 is provided with a second notch relative to the inner wall of the anti-surge valve pipe 201 and the bonnet body corresponding to the first notch, so that the difference between the temperature expansion rates of the first bonnet 204 and the second bonnet 203 does not need to be set to be particularly strict, and the connectivity between the first notch and the outlet pipe 102 can be improved without affecting the occurrence of the first notch after the first bonnet 204 is expanded and deformed.
The above is a detailed description of a second embodiment of the unpowered anti-surge device provided by the present invention, and the following is a detailed description of a third embodiment of the unpowered anti-surge device provided by the present invention.
For convenience of understanding, referring to fig. 6 to 7, the unpowered anti-surge device according to the embodiment of the present application is different from the first embodiment in that the first expansion module is an expansion strut 207, the second expansion module includes a third valve cover 206 and a second annular sealing cover 205, the second annular sealing cover 205 is disposed close to the expansion strut 207 relative to the third valve cover 206, a first end of the expansion strut 207 is fixedly connected to a first connection point at a bottom end of the third valve cover 206, a second end of the expansion strut 207 is fixedly connected to a second connection point at an inner wall of the anti-surge valve pipe 201, the second connection point is disposed close to the outlet pipe 102 relative to the first connection point, and the third valve cover 206 and the second annular sealing cover 205 are partially separated from each other.
It can be understood that, when the temperature of the airflow received by the expansion strut 207 is higher than the preset temperature, the expansion strut 207 expands to jack up the third valve cover 206, and since the third valve cover 206 and the second annular sealing cover 205 are partially separated from each other, so that an airflow channel gap is formed between the third valve cover 206 and the second annular sealing cover 205, the airflow channel gap is convenient to communicate with the outlet pipe 102, and thus the airflow can flow from the airflow channel gap to the bypass pipe 300 and then to the inlet pipe 101, thereby reducing the temperature of the airflow.
Then, after the air flow is cooled by circulation, when the air flow temperature is not higher than the preset temperature, the expansion strut 207 and the third valve cover 206 can be restored, so that the third valve cover 206 covers the second annular sealing cover 205 again, the air flow passage gap is closed, and the air flow cannot circulate to the air inlet pipe 101.
In order to improve the connectivity between the airflow passage gap and the outlet pipe 102, the first connection point is not overlapped with the central point of the bottom end of the third valve cover 206, the partial outer edge of the third valve cover 206 far away from the first connection point is fixedly connected with the second annular sealing cover 205, and the partial outer edge of the third valve cover 206 close to the first connection point is separated from the second annular sealing cover 205, so that the airflow passage gap can be formed more conveniently, and the airflow passage gap and the outlet pipe 102 are more unobstructed.
Further, in the above embodiment, referring to fig. 8, the bypass pipe 300 is provided with the check valve 400.
It is understood that the flow direction of the check valve 400 is set from the outlet of the automatic surge protection valve 200 to the inlet 101 of the cooler 100, and the reverse flow of the air flow can be prevented.
Further, in the above embodiment, referring to fig. 9, the apparatus further includes a fan 500, a control module, a temperature sensor, and an airflow sensor, the fan 500 is disposed on the bypass pipe 300, an air outlet direction of the fan 500 is disposed toward the air inlet pipe 101, the temperature sensor and the airflow sensor are both electrically connected to the control module, and the control module is electrically connected to the fan 500.
It should be noted that the temperature sensor and the airflow sensor respectively collect airflow temperature information and airflow speed information, and transmit the airflow temperature information and the airflow speed information to the control module, the control module compares the airflow temperature collected by the temperature sensor with a preset airflow temperature, and when the airflow temperature is higher than the preset airflow temperature, the fan 500 is driven to be turned on to increase the flow guiding speed of the airflow, so as to increase the cooling rate; meanwhile, the control module also compares the air flow speed acquired by the air flow sensor with a preset air flow speed, and when the air flow speed is greater than the preset air flow speed, the fan 500 is driven to be started to increase the drainage speed of the air flow, so that the cooling rate is increased.
The above is a detailed description of a third embodiment of the unpowered anti-surge device provided by the present invention, and the following is a detailed description of an embodiment of the unpowered anti-surge compression apparatus provided by the present invention.
For ease of understanding, referring to fig. 10, the present application provides an unpowered anti-surge compression device comprising a plurality of compression bodies, a cooler 100 disposed between adjacent compression bodies, the cooler 100 being provided with unpowered anti-surge devices 700, 701 as in the previous embodiments.
In the present embodiment, there are three compression bodies, which are a first-stage compression body 600, a second-stage compression body 601, and a third-stage compression body 602.
The above is a detailed description of an embodiment of an unpowered anti-surge compression device provided by the present invention, and the following is a detailed description of an embodiment of an unpowered anti-surge method provided by the present invention.
For convenience of understanding, referring to fig. 11, the present application provides a unpowered anti-surge method applying the unpowered anti-surge device of the above embodiment, the method comprising the steps of:
the method comprises the following steps: receiving the airflow flowing out of the air outlet pipe of the cooler through a first expansion module;
step two: the temperature of the airflow is compared with a preset temperature through the first expansion module, when the temperature of the airflow is higher than the preset temperature, expansion deformation is generated, so that the first expansion module is driven to contract, deform or shift relative to the inner wall of the surge-proof valve pipeline, and an airflow channel is formed between the first expansion module and the inner wall of the surge-proof valve pipeline, so that the airflow can pass through the airflow channel;
step three: after receiving the airflow circulating through the airflow channel through the bypass pipeline, the airflow is guided to the air inlet pipe of the cooler so as to reduce the airflow temperature of the air inlet pipe and reduce the airflow temperature of the air outlet pipe.
Further, step three is followed by: and repeating the first step to the third step until the temperature of the airflow which flows out of the air outlet pipe of the cooler and is received by the first expansion module is not higher than the preset temperature, and restoring the first expansion module and the second expansion module to the original shape, so that the second expansion module is in sealing connection with the inner wall of the surge-proof valve pipeline.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. The utility model provides an unpowered anti-surge device, is applied to gas compression equipment, gas compression equipment includes the cooler, the cooler is equipped with intake pipe and outlet duct, its characterized in that, this anti-surge device includes: an automatic surge prevention valve and a bypass pipeline;
the first end of the automatic surge-proof valve is communicated with the side wall of the air outlet pipe, and the second end of the automatic surge-proof valve is communicated with the side wall of the air inlet pipe through the bypass pipeline;
the automatic anti-surge valve comprises an anti-surge valve pipeline, a first expansion module and a second expansion module, wherein the temperature expansion rate of the first expansion module is greater than that of the second expansion module, the first expansion module is arranged close to the air outlet pipe relative to the second expansion module, and when the temperature of the air flow of the air outlet pipe is not greater than the preset temperature, the second expansion module is in sealing connection with the inner wall of the anti-surge valve pipeline; when the temperature of the air flow of the air outlet pipe is higher than the preset temperature, the first expansion module is expanded and deformed so as to drive the first expansion module to contract and deform or displace relative to the inner wall of the surge-proof valve pipeline, and an air flow channel is formed between the first expansion module and the inner wall of the surge-proof valve pipeline.
2. The unpowered surge arrester of claim 1 wherein the bypass conduit is provided with a check valve.
3. The unpowered surge arrester as claimed in claim 1, further comprising a fan, a control module, a temperature sensor and an airflow sensor, wherein the fan is disposed on the bypass pipe, an air outlet direction of the fan is disposed toward the air inlet pipe, the temperature sensor and the airflow sensor are both electrically connected to the control module, and the control module is electrically connected to the fan.
4. The unpowered anti-surge device according to claim 1, wherein the first expansion module is a first valve cover, the second expansion module comprises a second valve cover and a first annular sealing cover, the second valve cover is disposed adjacent to the first valve cover relative to the annular sealing cover, the first annular sealing cover is provided with a first gap, the first gap is communicated with the bypass pipe, and the second valve cover is disposed corresponding to a separation between an outer edge of the first gap and an inner wall of the anti-surge pipe.
5. The unpowered anti-surge device according to claim 4, wherein the first valve cover is provided with a second notch relative to the inner wall of the anti-surge valve conduit and a valve cover body corresponding to the first notch.
6. The unpowered surge protection device of claim 1, wherein the first expansion module is an expansion strut, the second expansion module comprises a third valve cover and a second annular sealing cover, the second annular sealing cover is disposed adjacent to the expansion strut relative to the third valve cover, a first end of the expansion strut is fixedly connected to a first connection point at a bottom end of the third valve cover, a second end of the expansion strut is fixedly connected to a second connection point at an inner wall of the surge protection valve pipe, the second connection point is disposed adjacent to the outlet pipe relative to the first connection point, and a portion of the third valve cover is disposed separately from the second annular sealing cover.
7. The unpowered anti-surge device of claim 6, wherein the first connection point does not coincide with a center point of a bottom end of the third valve cover, wherein a portion of an outer edge of the third valve cover distal from the first connection point is fixedly connected to the second annular sealing cover, and wherein a portion of an outer edge of the third valve cover proximal to the first connection point is spaced apart from the second annular sealing cover.
8. An unpowered surge-proof compression device, comprising a plurality of compression bodies, and a cooler arranged between adjacent compression bodies, wherein the cooler is provided with the unpowered surge-proof device as claimed in any one of claims 1 to 7.
9. An unpowered anti-surge method using the unpowered anti-surge device of claim 1, wherein the method comprises the steps of:
the method comprises the following steps: receiving the airflow flowing out of the air outlet pipe of the cooler through a first expansion module;
step two: comparing the temperature of the airflow with a preset temperature through the first expansion module, and when the temperature of the airflow is higher than the preset temperature, performing expansion deformation to drive the first expansion module to perform contraction deformation or displacement relative to the inner wall of the surge-proof valve pipeline, so that an airflow channel is formed between the first expansion module and the inner wall of the surge-proof valve pipeline, and the airflow passes through the airflow channel;
step three: after the airflow which circulates through the airflow channel is received through the bypass pipeline, the airflow is guided to the air inlet pipe of the cooler so as to reduce the airflow temperature of the air inlet pipe, and therefore the airflow temperature of the air outlet pipe is reduced.
10. The unpowered anti-surge method according to claim 9, wherein step three is further followed by: and repeating the first step to the third step until the temperature of the airflow which flows out of the air outlet pipe of the cooler and is received by the first expansion module is not higher than the preset temperature, and restoring the first expansion module and the second expansion module to the original shapes, so that the second expansion module is connected with the inner wall of the pipeline of the anti-surge valve in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332448.5A CN112594165B (en) | 2020-11-24 | 2020-11-24 | Unpowered anti-surge device, compression equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332448.5A CN112594165B (en) | 2020-11-24 | 2020-11-24 | Unpowered anti-surge device, compression equipment and method |
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| Publication Number | Publication Date |
|---|---|
| CN112594165A true CN112594165A (en) | 2021-04-02 |
| CN112594165B CN112594165B (en) | 2021-07-16 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1021797A (en) * | 1963-03-06 | 1966-03-09 | Shell Int Research | Method and apparatus for the protection of a centrifugal compressor |
| US4835979A (en) * | 1987-12-18 | 1989-06-06 | Allied-Signal Inc. | Surge control system for a closed cycle cryocooler |
| JPH094490A (en) * | 1995-06-16 | 1997-01-07 | Toyota Motor Corp | Intake air control device for internal combustion engine |
| CN2761977Y (en) * | 2004-12-30 | 2006-03-01 | 济南钢铁股份有限公司 | Gas spreading equipment of gas steam combined circulation generation system |
| CN206429370U (en) * | 2016-12-29 | 2017-08-22 | 武汉钢铁有限公司 | A kind of automatic compression device |
| CN206808673U (en) * | 2017-04-24 | 2017-12-29 | 深圳市合元科技有限公司 | Atomizer, electronic cigarette and aerosol generating unit with overheat protective function |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1021797A (en) * | 1963-03-06 | 1966-03-09 | Shell Int Research | Method and apparatus for the protection of a centrifugal compressor |
| US4835979A (en) * | 1987-12-18 | 1989-06-06 | Allied-Signal Inc. | Surge control system for a closed cycle cryocooler |
| JPH094490A (en) * | 1995-06-16 | 1997-01-07 | Toyota Motor Corp | Intake air control device for internal combustion engine |
| CN2761977Y (en) * | 2004-12-30 | 2006-03-01 | 济南钢铁股份有限公司 | Gas spreading equipment of gas steam combined circulation generation system |
| CN206429370U (en) * | 2016-12-29 | 2017-08-22 | 武汉钢铁有限公司 | A kind of automatic compression device |
| CN206808673U (en) * | 2017-04-24 | 2017-12-29 | 深圳市合元科技有限公司 | Atomizer, electronic cigarette and aerosol generating unit with overheat protective function |
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| CN112594165B (en) | 2021-07-16 |
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