CN215996223U - Sponge municipal sewage treatment device based on ultrafiltration technology - Google Patents

Sponge municipal sewage treatment device based on ultrafiltration technology Download PDF

Info

Publication number
CN215996223U
CN215996223U CN202122533920.8U CN202122533920U CN215996223U CN 215996223 U CN215996223 U CN 215996223U CN 202122533920 U CN202122533920 U CN 202122533920U CN 215996223 U CN215996223 U CN 215996223U
Authority
CN
China
Prior art keywords
ultrafiltration
water pressure
main shaft
pipe fitting
cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122533920.8U
Other languages
Chinese (zh)
Inventor
谢周婉
王嘉颖
叶日晴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202122533920.8U priority Critical patent/CN215996223U/en
Application granted granted Critical
Publication of CN215996223U publication Critical patent/CN215996223U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The utility model discloses a sponge municipal sewage treatment device based on ultrafiltration technology, which belongs to the technical field of sewage treatment, and comprises a water pressure monitoring box, a tee pipe fitting and ultrafiltration equipment, wherein the water pressure monitoring box is connected with the ultrafiltration equipment through the tee pipe fitting, the top of the water pressure monitoring box is provided with an alarm, the left side of the tee pipe fitting is connected with a sewage conveying pipe, the sewage conveying pipe is sequentially provided with a booster pump and a pressure reducing pump, the ultrafiltration equipment carries out ultrafiltration treatment on sewage in the tee pipe fitting, simultaneously, the water pressure monitoring box monitors the water pressure in the tee pipe fitting, when the water pressure in the tee pipe fitting is abnormal, the alarm can carry out alarm work to remind a worker to carry out inspection, and simultaneously, the booster pump or the pressure reducing pump can also automatically carry out corresponding work, thereby avoiding the water pressure from exceeding the bearing range of the ultrafiltration equipment and causing damage to the ultrafiltration equipment, realizes the normal and stable operation of the sponge urban sewage treatment device based on the ultrafiltration technology.

Description

Sponge municipal sewage treatment device based on ultrafiltration technology
Technical Field
The utility model belongs to the technical field of sewage treatment, specifically speaking relates to a sponge municipal sewage treatment plant based on ultrafiltration technology.
Background
A sponge city is a new generation city rain and flood management concept, and refers to a city which can be like a sponge and has good elasticity in the aspects of adapting to environmental changes and natural disasters brought by rainwater, and can also be called as a water elasticity city, the international general term is 'low-influence development rainwater system construction', water absorption, water storage, water seepage and water purification are carried out when raining, the stored water is released and utilized when needed, and the rainwater can freely migrate in the city, ultrafiltration equipment is generally added in a sewage treatment device in the existing sponge city, ultrafiltration is one of membrane separation technologies taking pressure as driving force, the water yield of an ultrafiltration membrane is easily influenced by a plurality of factors, particularly when the water pressure at a water inlet of the ultrafiltration equipment is reduced, impurities in the sewage can easily block the ultrafiltration membrane, so that the ultrafiltration rate is reduced, and the water yield of the ultrafiltration membrane is reduced, therefore, it is necessary to monitor and adjust the water pressure at the water inlet of the ultrafiltration apparatus so that the water pressure value at the water inlet of the ultrafiltration apparatus is within a safe range.
The water inlet of the traditional ultrafiltration equipment is generally provided with a simpler water pressure monitoring device, and the device cannot automatically adjust the abnormal water pressure of the water inlet of the ultrafiltration equipment, so that when the water pressure of the water inlet of the ultrafiltration equipment is abnormally changed, the ultrafiltration equipment is easily damaged, the water yield of the ultrafiltration equipment is reduced, and the sewage treatment efficiency of the whole sewage treatment device is greatly reduced.
Therefore, the technical personnel in the field provide a sponge municipal sewage treatment device based on ultrafiltration technology to solve the problems in the background art.
SUMMERY OF THE UTILITY MODEL
To the problem that provides in the prior art, the utility model provides a sponge municipal sewage treatment plant based on ultrafiltration technique, the device can effectively solve the problem that provides in the background art.
In order to solve the above problems, the utility model adopts the following technical proposal.
A sewage treatment device based on an ultrafiltration technology sponge city comprises a water pressure monitoring box, wherein a first bearing is fixedly embedded on the upper surface and the lower surface in the water pressure monitoring box, a main shaft is rotatably connected between the first bearings, a first bevel gear is fixedly connected to the main shaft, a second bevel gear is meshed and connected to the left side of the first bevel gear, an annular hole is formed in the left side of the water pressure monitoring box in a penetrating mode, a second bearing is fixedly installed in the annular hole, a driving rotating shaft is rotatably connected to the inner ring of the second bearing, one end of the driving rotating shaft is fixedly connected with the center of the left side of the second bevel gear, a turntable is fixedly installed at the other end of the driving rotating shaft, a plurality of fan blades which are uniformly distributed at the outer edge of the turntable are fixedly installed on the turntable, and a first rotating block is fixedly installed below the main shaft, a first cavity is formed in the first rotating block, a first contact switch is arranged on one side, close to the main shaft, of the inner wall of the first cavity, a first sliding block in sliding connection is arranged on the inner wall of the first cavity in a matched mode, a first reset spring is fixedly connected to one side, far away from the main shaft, of the first sliding block, and the other end of the first reset spring is fixedly connected to the inner wall of the first cavity.
Preferably, there is a second rotating block below the main shaft, the second rotating block and the first rotating block are symmetrically arranged with the central axis of the main shaft, a second cavity is formed in the second rotating block, a second contact switch is arranged on one side, far away from the main shaft, of the inner wall of the second cavity, a second sliding block which is connected in a sliding manner is arranged on the inner wall of the second cavity in a matching manner, a second return spring is fixedly connected to one side, close to the main shaft, of the second sliding block, and the second return spring is fixedly connected with the inner wall of the second cavity.
Preferably, the top fixed mounting of water pressure monitoring box has the alarm, the alarm with the equal electric connection of first contact switch and second contact switch.
Preferably, a tee pipe fitting is further connected in the annular hole in a threaded manner, a sealing rubber gasket is arranged at a position where a right water outlet of the tee pipe fitting is contacted with the second bearing, and the sealing rubber gasket is sleeved on the driving rotating shaft.
Preferably, the rotary disc is arranged at a left water inlet of the tee pipe fitting.
Preferably, the water outlet at the lower end of the tee pipe fitting is connected with an ultrafiltration device.
Preferably, the left side water inlet of tee bend pipe fitting is connected with sewage delivery pipe, install booster pump and decompression pump on the sewage delivery pipe in proper order, booster pump and first contact switch electric connection, decompression pump and second contact switch electric connection.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) when the water pressure is reduced, the rotating speed of the fan blades under the impact of sewage is reduced, so that the rotating speed of the driving rotating shaft is reduced, the rotating speed of the main shaft is reduced, so that the rotating speed of the first rotating block around the main shaft is reduced, the centrifugal force applied to the first sliding block is reduced, the centrifugal force is smaller than the elastic force of the first return spring, the first sliding block moves inwards to be contacted with the first contact switch, thereby forming a closed circuit among the first contact switch, the alarm and the booster pump, the booster pump starts to work to boost the sewage, the alarm gives an alarm to remind the working personnel to check, the device ensures that when the water pressure is reduced, the impurities in the sewage can not easily block the ultrafiltration membrane, thereby preventing the water yield of the ultrafiltration equipment from being reduced, and then normal and stable operation of the sponge urban sewage treatment device based on the ultrafiltration technology is realized.
(2) When water pressure risees, because the flabellum is accelerated at the slew velocity of sewage impact down, centrifugal force overcomes second reset spring's elasticity this moment, the outside lateral movement of second slider contacts with second contact switch, thereby make and form closed circuit between second contact switch and the alarm, the alarm begins work thereupon, remind the staff to inspect, also form closed circuit between while decompression pump and the second contact switch, the decompression pump also begins work thereupon, in time reduce the rivers in the sewage delivery pipe, the security of device has been guaranteed, the device has ensured when water pressure risees, rivers can not damage the membrane module ultrafiltration easily, thereby influence the filter effect of milipore filter, and then realized the steady operation of whole device.
Drawings
FIG. 1 is a schematic structural view of a sponge municipal sewage treatment plant based on ultrafiltration technology;
FIG. 2 is a schematic view of the structure of the water pressure monitoring box of the present invention;
fig. 3 is a schematic structural diagram of the first rotating block and the second rotating block of the present invention.
The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:
01. a booster pump; 02. a pressure reducing pump; 03. a tee pipe fitting; 04. an alarm; 05. a water pressure monitoring box; 06. ultrafiltration equipment; 07. a fan blade; 08. sealing the rubber gasket; 09. a second bearing; 10. a second bevel gear; 11. a first bearing; 12. a main shaft; 13. a first bevel gear; 14. driving the rotating shaft; 15. a second turning block; 16. a first rotating block; 17. a second contact switch; 18. a second slider; 19. a second return spring; 20. a first contact switch; 21. a first slider; 22. a first return spring; 23. a second cavity; 24. a first cavity; 25. a turntable; 26. an annular aperture; 27. a sewage conveying pipe.
Detailed Description
The invention will be further described below in connection with specific embodiments.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in the embodiment of the present invention, a sponge municipal sewage treatment plant based on ultrafiltration technology comprises a water pressure monitoring box 05, a tee pipe 03 and an ultrafiltration apparatus 06, wherein the water pressure monitoring box 05 is connected with the ultrafiltration apparatus 06 through the tee pipe 03, an alarm 04 is disposed on the top of the water pressure monitoring box 05, a sewage delivery pipe 27 is connected to the left side of the tee pipe 03, a booster pump 01 and a pressure reducing pump 02 are sequentially installed on the sewage delivery pipe 27, the ultrafiltration apparatus 06 carries out ultrafiltration treatment on sewage flowing through the tee pipe 03, meanwhile, the water pressure monitoring box 05 monitors water pressure in the tee pipe 03, when the water pressure in the tee pipe 03 is abnormal, the alarm 04 will alarm work to remind a worker to check, and the booster pump 01 or the pressure reducing pump 02 will automatically carry out corresponding work, thereby preventing the water pressure from exceeding the bearing range of the ultrafiltration apparatus 06 and causing damage to the ultrafiltration apparatus 06, the device effectively protects the normal operation of the ultrafiltration device 06.
An annular hole 26 is formed in the left side of the water pressure monitoring box 05 in a penetrating manner, a right side water outlet of the three-way pipe 03 is inserted into the annular hole 26 and is in threaded connection with the annular hole 26, a second bearing 09 is further fixedly installed in the annular hole 26, wherein the inner ring of the second bearing 09 is rotatably connected with a driving rotating shaft 14, one end of the driving rotating shaft 14 is fixedly provided with a turntable 25, a plurality of fan blades 07 which are uniformly distributed at the outer edge of the turntable 25 are fixedly installed on the turntable 25, when sewage flows through the fan blades 07, the impact force of the sewage enables the fan blades 07 to drive the turntable 25 to rotate so as to drive the driving rotating shaft 14 to rotate, the turntable 25 is arranged at a left side water inlet of the three-way pipe 03, a sealing rubber pad 08 is arranged at a position where the right side water outlet of the three-way pipe 03 is in contact with the second bearing 09, the sealing rubber pad 08 is sleeved on the driving rotating shaft 14, and the sealing rubber pad 08 can effectively prevent the sewage from flowing into the water pressure monitoring box 05 from the right side water outlet of the three-way pipe 03, thereby influence the normal operation of water pressure monitoring box 05, the other end fixed mounting of drive pivot 14 has second conical gear 10, the right side meshing of second conical gear 10 is connected with first conical gear 13, the center department fixed mounting of first conical gear 13 has main shaft 12, the both ends of main shaft 12 rotate with the first bearing 11 of fixed inlaying at water pressure monitoring box 05 upper surface and lower surface respectively and be connected, wherein main shaft 12's below fixed mounting has first turning block 16 and second turning block 15, wherein first turning block 16 and second turning block 15 set up with the axis symmetry of main shaft 12.
A first cavity 24 is formed in the first rotating block 16, a first contact switch 20 is arranged on one side of the inner wall of the first cavity 24, which is close to the main shaft 12, the first contact switch 20 is electrically connected with the alarm 04 and the booster pump 01, a first sliding block 21 in sliding connection is arranged on the inner wall of the first cavity 24 in a matching manner, and a first return spring 22 is fixedly connected to one side of the first sliding block 21, which is far away from the main shaft 12, wherein the first return spring 22 is fixedly connected with the inner wall of the first cavity 24, when the water pressure in the tee pipe fitting 03 is reduced, the rotating speed of the fan blade 07 under the impact of sewage is reduced therewith, so that the rotating speed of the driving rotating shaft 14 is reduced, the rotating speed of the main shaft 12 is reduced, the rotating speed of the first rotating block 16 around the main shaft 12 is reduced, the centrifugal force applied to the first sliding block 21 is reduced, and the centrifugal force is smaller than the elastic force of the first return spring 22, first slider 21 moves to the inboard and contacts with first contact switch 20 to make and form closed circuit between first contact switch 20 and alarm 04 and the booster pump 01, booster pump 01 begins work thereupon, carry out the pressure boost to sewage, alarm 04 sends the police dispatch newspaper simultaneously, remind the staff to inspect, the device has ensured that when water pressure reduces, impurity in the sewage also can not block up the milipore filter easily, thereby prevent that ultrafiltration apparatus 06's water production from declining, and then realized the normal steady operation of sponge city sewage treatment plant based on ultrafiltration technique.
A second cavity 23 is arranged in the second rotating block 15, a second contact switch 17 is arranged on one side of the inner wall of the second cavity 23 far away from the main shaft 12, the second contact switch 17 is electrically connected with the alarm 04 and the decompression pump 02, a second sliding block 18 in sliding connection is arranged on the inner wall of the second cavity 23 in a matching manner, a second return spring 19 is fixedly connected to one side of the second sliding block 18 close to the main shaft 12, the second return spring 19 is fixedly connected with the inner wall of the second cavity 23, the fan blade 07 rotates along with the movement of water flow in the tee pipe fitting 03, the rotating shaft 14 is driven to rotate along with the rotation of the rotating shaft 14, the main shaft 12 is further driven to rotate along with the rotating shaft, so that the second rotating block 15 is driven to rotate around the main shaft 12, due to the action of centrifugal force, when the water pressure in the tee pipe fitting 03 rises, the fan blade 07 can accelerate rotation, at the moment, the centrifugal force overcomes the elastic force of the second return spring 19, and the second sliding block 18 moves outwards to be in contact with the second contact switch 17, thereby make and form closed circuit between second contact switch 17 and the alarm 04, alarm 04 begins work thereupon, remind the staff to inspect, also form closed circuit between decompression pump 02 and the second contact switch 17 simultaneously, decompression pump 02 also begins work thereupon, in time carry out the decompression to rivers in the sewage conveyer pipe 27, the security of device has been guaranteed, the device has guaranteed to rise when water pressure, rivers can not damage the milipore filter subassembly easily, thereby influence the filter effect of milipore filter, and then realized the steady operation of whole device.
The utility model discloses a theory of operation is: firstly, sewage with certain pressure flows into the ultrafiltration device 06 through the three-way pipe 03 from the sewage conveying pipe 27, then the ultrafiltration device 06 carries out ultrafiltration treatment on the sewage, meanwhile, the water pressure monitoring box 05 monitors the water pressure in the three-way pipe 03, when the water pressure in the three-way pipe 03 abnormally changes, the alarm 04 can carry out alarm work to remind a worker to check, and then the booster pump 01 or the decompression pump 02 can automatically carry out corresponding work, thereby avoiding the water pressure from exceeding the bearing range of the ultrafiltration device 06 to damage the ultrafiltration device 06, and further realizing the normal operation of the whole sewage treatment device.
When the water pressure in the three-way pipe fitting 03 is reduced, the rotating speed of the fan blades 07 under the impact of sewage is reduced, so that the rotating speed of the driving rotating shaft 14 is reduced, the rotating speed of the main shaft 12 is reduced, the rotating speed of the first rotating block 16 around the main shaft 12 is reduced, the centrifugal force applied to the first sliding block 21 is reduced, the centrifugal force is smaller than the elastic force of the first return spring 22, the first sliding block 21 moves inwards to be in contact with the first contact switch 20, so that a closed circuit is formed between the first contact switch 20 and the alarm 04 and between the first contact switch and the booster pump 01, the booster pump 01 starts to work along with the first contact switch, the sewage is pressurized, the alarm 04 gives an alarm to remind a worker to check, and the device ensures that impurities in the sewage cannot easily block the ultrafiltration membrane when the water pressure is reduced, so that the water yield of the ultrafiltration device 06 is prevented from being reduced, and then normal and stable operation of the sponge urban sewage treatment device based on the ultrafiltration technology is realized.
When the water pressure in the three-way pipe fitting 03 rises, the fan blades 07 can accelerate rotation, due to the action of centrifugal force, the centrifugal force overcomes the elastic force of the second reset spring 19 at the moment, the second sliding block 18 moves towards the outer side and contacts with the second contact switch 17, so that a closed circuit is formed between the second contact switch 17 and the alarm 04, the alarm 04 starts working along with the second contact switch, the staff is reminded to check, meanwhile, a closed circuit is also formed between the pressure reducing pump 02 and the second contact switch 17, the pressure reducing pump 02 also starts working along with the second contact switch, the pressure of water flow in the sewage conveying pipe 27 is timely reduced, the safety of the device is ensured, the device ensures that when the water pressure rises, the water flow cannot easily damage the ultrafiltration membrane module, the filtering effect of the ultrafiltration membrane is influenced, and the stable operation of the whole device is further realized.
The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.

Claims (7)

1. The utility model provides a sponge municipal sewage treatment plant based on ultrafiltration technique, includes water pressure monitoring box (05), its characterized in that: the upper surface and the lower surface in the water pressure monitoring box (05) are fixedly inlaid with first bearings (11), two first bearings (11) are connected with a main shaft (12) in a rotating mode, a first conical gear (13) is fixedly connected to the main shaft (12), a second conical gear (10) is meshed with the left side of the first conical gear (13), a circular hole (26) is formed in the left side of the water pressure monitoring box (05) in a penetrating mode, a second bearing (09) is fixedly mounted in the circular hole (26), a driving rotating shaft (14) is connected to the inner ring of the second bearing (09) in a rotating mode, one end of the driving rotating shaft (14) is fixedly connected with the center of the left side of the second conical gear (10), a rotating disc (25) is fixedly mounted at the other end of the driving rotating shaft (14), and a plurality of fan blades (07) which are uniformly distributed at the outer edge of the rotating disc (25) are fixedly mounted on the rotating disc (25), the lower part of the main shaft (12) is fixedly provided with a first rotating block (16), a first cavity (24) is formed in the first rotating block (16), one side, close to the main shaft (12), of the inner wall of the first cavity (24) is provided with a first contact switch (20), the inner wall of the first cavity (24) is matched with a first sliding block (21) which is provided with a sliding connection, one side, far away from the main shaft (12), of the first sliding block (21) is fixedly connected with a first reset spring (22), and the other end of the first reset spring (22) is fixedly connected to the inner wall of the first cavity (24).
2. The device for treating the sponge municipal sewage based on the ultrafiltration technology as claimed in claim 1, wherein: the utility model discloses a spindle, including main shaft (12), second turning block (15) fixed mounting is still gone up to the below of main shaft (12), second turning block (15) and first turning block (16) set up with the axis symmetry of main shaft (12), second cavity (23) have been seted up in second turning block (15), one side that main shaft (12) were kept away from to second cavity (23) inner wall is provided with second contact switch (17), second cavity (23) inner wall matching is provided with sliding connection's second slider (18), one side fixedly connected with second reset spring (19) that second slider (18) are close to main shaft (12), the inner wall fixed connection of second reset spring (19) and second cavity (23).
3. The device for treating the sponge municipal sewage based on the ultrafiltration technology as claimed in claim 1, wherein: the top fixed mounting of water pressure monitoring box (05) has alarm (04), alarm (04) with the equal electric connection of first contact switch (20) and second contact switch (17).
4. The device for treating the sponge municipal sewage based on the ultrafiltration technology as claimed in claim 1, wherein: a three-way pipe fitting (03) is further connected in the annular hole (26) in a threaded manner, a sealing rubber gasket (08) is arranged at the position where the right water outlet of the three-way pipe fitting (03) is in contact with the second bearing (09), and the sealing rubber gasket (08) is sleeved on the driving rotating shaft (14).
5. The device for treating the sponge municipal sewage based on the ultrafiltration technology as claimed in claim 4, wherein: the rotary disc (25) is arranged at a water inlet on the left side of the three-way pipe fitting (03).
6. The device for treating the sponge municipal sewage based on the ultrafiltration technology as claimed in claim 4, wherein: and a water outlet at the lower end of the three-way pipe fitting (03) is connected with an ultrafiltration device (06).
7. The device for treating the sponge municipal sewage based on the ultrafiltration technology as claimed in claim 4, wherein: the left side water inlet of tee bend pipe fitting (03) is connected with sewage delivery pipe (27), install booster pump (01) and decompression pump (02) on sewage delivery pipe (27) in proper order, booster pump (01) and first contact switch (20) electric connection, decompression pump (02) and second contact switch (17) electric connection.
CN202122533920.8U 2021-10-21 2021-10-21 Sponge municipal sewage treatment device based on ultrafiltration technology Active CN215996223U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122533920.8U CN215996223U (en) 2021-10-21 2021-10-21 Sponge municipal sewage treatment device based on ultrafiltration technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122533920.8U CN215996223U (en) 2021-10-21 2021-10-21 Sponge municipal sewage treatment device based on ultrafiltration technology

Publications (1)

Publication Number Publication Date
CN215996223U true CN215996223U (en) 2022-03-11

Family

ID=80586982

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122533920.8U Active CN215996223U (en) 2021-10-21 2021-10-21 Sponge municipal sewage treatment device based on ultrafiltration technology

Country Status (1)

Country Link
CN (1) CN215996223U (en)

Similar Documents

Publication Publication Date Title
CN209779854U (en) Municipal administration pipeline dredging device
CN215996223U (en) Sponge municipal sewage treatment device based on ultrafiltration technology
CN112550578A (en) Showy waterproof biological winding of formula on water and photovoltaic power generation device who freezes
CN114960588B (en) Unpowered filtering and dirt removing device
CN207848516U (en) A kind of oil circuit current limiter
CN213813025U (en) Water source monitoring device for tap water treatment equipment
CN2354109Y (en) Rotary-wing type non-return water meter
CN211189310U (en) β -carotene midbody production filter equipment
CN104029956A (en) Garbage can capable of conveniently removing water in zip-top can
CN113883103A (en) Anti-blocking system for washing submersible pump
CN206923431U (en) A kind of control device of reel sprinkling irrigation machine
CN218719343U (en) Water quality on-line monitoring sampling connecting device
CN219489683U (en) Ultrafiltration membrane sewage treatment equipment
CN217354943U (en) High-efficient diversion system based on water treatment
CN216812181U (en) Mixed flow pump with self-cleaning function
CN217898257U (en) Axial-flow pump blade angle adjusting device
CN214277276U (en) Anti-blocking diaphragm sealed differential pressure transmitter
CN221014904U (en) Anti-blocking structure of liquid pipeline
CN212455658U (en) Intelligent regulating valve with anti-blocking function
CN215977185U (en) Aquatic rubbish fishing device
CN212166676U (en) Backwashing filter device for underground dustproof pipeline
CN216279617U (en) Anti-shake flow limiting shutoff valve
CN219671286U (en) Water diversion device for hydraulic and hydroelectric engineering
CN112160912B (en) Dykes and dams flood prevention flood fighting system
CN209425486U (en) A kind of sponge slicer with shock-absorbing function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant