CN112295311A - Barreled mineral water production is with former dress water supercharging equipment - Google Patents
Barreled mineral water production is with former dress water supercharging equipment Download PDFInfo
- Publication number
- CN112295311A CN112295311A CN202011137425.9A CN202011137425A CN112295311A CN 112295311 A CN112295311 A CN 112295311A CN 202011137425 A CN202011137425 A CN 202011137425A CN 112295311 A CN112295311 A CN 112295311A
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- Prior art keywords
- water
- pipe
- ring
- water pump
- wall
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 125
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 24
- 239000011707 mineral Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000012535 impurity Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 25
- 238000005096 rolling process Methods 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 239000002245 particle Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 235000010755 mineral Nutrition 0.000 description 15
- 239000000284 extract Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- -1 flow rate Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of barreled mineral water production equipment, and discloses original water pressurizing equipment for barreled mineral water production, which comprises a pressurizing water pump, wherein one end of the pressurizing water pump is communicated with a water inlet pipe, and an impurity filtering mechanism is arranged in the water inlet pipe; impurity filtering mechanism includes the spacing ring, and spacing ring fixed connection is on the inner pipe wall of inlet tube, and the fixedly connected with is the support frame of "ten" style of calligraphy on being located the inner pipe wall of inlet tube between booster water pump and the spacing ring, and the center department of support frame is rotated through first bearing and is connected with the transmission shaft, and first bearing is passed and outwards extends at the both ends of transmission shaft. The invention prevents impurity particles from entering the booster water pump, prolongs the service life of the booster water pump, prevents the impurity particles in water from blocking the filter net pipes, does not influence the filtering effect of the filter net pipes on water, ensures the long-term stable work of the impurity filtering mechanism, and conveniently cleans the impurity particles in the filter net pipes.
Description
Technical Field
The invention relates to the technical field of barreled mineral water production equipment, in particular to original water pressurizing equipment for barreled mineral water production.
Background
Mineral water is uncontaminated underground mineral water naturally flowing from underground depths or artificially exposed; contains a certain amount of mineral salts, trace elements or carbon dioxide gas; in general, the dynamics of chemical composition, flow rate, water temperature and the like are relatively stable within the natural fluctuation range. Mineral water is formed in circulation in deep stratum and contains minerals and limited indexes prescribed by national standards. The barreled mineral water is firstly required to be introduced into a filter for filtering during production and processing, the introduction of the original water is generally completed by utilizing a booster water pump, the existing booster water pump directly introduces the original water into the filter, the original water generally contains more impurity particles, and the impeller in the booster pump is easily worn to influence the service life of the booster pump after long-term use.
Disclosure of Invention
The invention aims to solve the problem that the service life of a booster pump is influenced by abrasion of an impeller inside the booster pump due to the fact that original water generally contains more impurity particles and is easy to wear after being used for a long time in the prior art, and provides original water pressurization equipment for barreled mineral water production.
In order to achieve the purpose, the invention adopts the following technical scheme:
the original-package water supercharging equipment for barreled mineral water production comprises a supercharging water pump, wherein one end of the supercharging water pump is communicated with a water inlet pipe, and an impurity filtering mechanism is arranged in the water inlet pipe;
the impurity filtering mechanism comprises a limiting ring which is fixedly connected on the inner pipe wall of the water inlet pipe, a cross-shaped supporting frame is fixedly connected on the inner pipe wall of the water inlet pipe between the booster water pump and the limiting ring, the center of the support frame is rotatably connected with a transmission shaft through a first bearing, two ends of the transmission shaft penetrate through the first bearing and extend outwards, one end of the transmission shaft close to the booster water pump is fixedly connected with a spiral fan blade, one end of the limiting ring far away from the supporting frame is provided with a supporting ring, the outer annular wall of the support ring is connected with the inner pipe wall of the water inlet pipe through a sealing assembly, the inner annular wall of the support ring is rotatably connected with a filter net pipe with one end hermetically arranged through a second bearing, the pipe bottom of the filter net pipe penetrates through the limiting ring and is arranged towards the booster water pump, and one end, far away from the spiral fan blades, of the transmission shaft is connected with the outer pipe bottom of the filter net pipe through the clamping component.
Preferably, the sealing assembly comprises a sealing ring, an annular sealing groove is formed in the outer annular wall of the supporting ring, the sealing ring is sleeved in the sealing groove, and the outer annular wall of the sealing ring is arranged on the inner pipe wall of the water inlet pipe.
Preferably, the clamping assembly comprises a clamping plate, the clamping plate is fixedly connected to the bottom of the outer pipe of the filter net pipe, a rectangular clamping groove is formed in one end, away from the filter net pipe, of the clamping plate, a rectangular iron block is fixedly connected to one end, away from the spiral fan blade, of the transmission shaft, the iron block is inserted into the clamping groove, and the iron block is matched with the clamping groove.
Preferably, the inner ring wall of the limiting ring is provided with four rolling grooves which are uniformly arranged in an annular shape with equal intervals by taking the filter net pipe as a center, rolling balls are arranged in the rolling grooves, the balls penetrate through the notches of the rolling grooves, and the balls are connected to the outer pipe wall of the filter net pipe in a rolling manner.
Preferably, the bottom of the clamping groove is fixedly connected with a magnet, and the magnet and the iron block are magnetically adsorbed.
Preferably, the booster water pump is communicated with a water outlet pipe.
Compared with the prior art, the invention provides the original water supercharging equipment for the production of barreled mineral water, which has the following beneficial effects:
this barreled mineral water production is with former dress water supercharging equipment, through setting up impurity filtering mechanism, filter the aquatic foreign particle that enters into the booster water pump through the inlet tube through filtering the network management, prevent that foreign particle from getting into in the booster water pump, booster water pump's life has been improved, rivers are when passing through helical fan blade, promote helical fan blade and rotate, and then drive and filter the network management rotation, under the effect of centrifugal force, get rid of the foreign particle who blocks in the filter screen pipe on the inner tube wall of filtering the network management, foreign particle does not remain at the bottom of the tube of filtering the network management, prevent that aquatic foreign particle from blockking up the filter screen management, do not influence the filter effect of filter screen management to water, impurity filtering mechanism's long-term stable work has been guaranteed, and can extract the filter screen management from the inlet tube, convenient impurity particle to the filter screen pipe is cleared up.
The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the invention prevents impurity particles from entering the booster water pump, prolongs the service life of the booster water pump, prevents the impurity particles in water from blocking the filter net pipes, does not influence the filter effect of the filter net pipes on the water, ensures the long-term stable work of the impurity filtering mechanism, and conveniently cleans the impurity particles in the filter net pipes.
Drawings
FIG. 1 is a schematic structural view of an original water pressurizing apparatus for production of barreled mineral water according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 1.
In the figure: 1 booster pump, 2 inlet tubes, 3 spacing rings, 4 support frames, 5 transmission shafts, 6 helical fan blades, 7 support rings, 8 filter net pipes, 9 sealing rings, 10 sealing grooves, 11 clamping plates, 12 clamping grooves, 13 iron blocks, 14 rolling grooves, 15 balls, 16 magnets and 17 outlet tubes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, the original water pressurizing device for barreled mineral water production comprises a pressurizing water pump 1, wherein one end of the pressurizing water pump 1 is communicated with a water inlet pipe 2, and an impurity filtering mechanism is arranged in the water inlet pipe 2;
the impurity filtering mechanism comprises a limiting ring 3, the limiting ring 3 is fixedly connected to the inner pipe wall of the water inlet pipe 2, a cross-shaped support frame 4 is fixedly connected to the inner pipe wall of the water inlet pipe 2 between the booster water pump 1 and the limiting ring 3, the center of the support frame 4 is rotatably connected with a transmission shaft 5 through a first bearing, two ends of the transmission shaft 5 penetrate through the first bearing and extend outwards, one end, close to the booster water pump 1, of the transmission shaft 5 is fixedly connected with a spiral fan blade 6, one end, far away from the support frame 4, of the limiting ring 3 is provided with a support ring 7, the outer ring wall of the support ring 7 is connected with the inner pipe wall of the water inlet pipe 2 through a sealing assembly, the inner ring wall of the support ring 7 is rotatably connected with a filter net pipe 8 with one end hermetically arranged through a second bearing, the pipe bottom of the filter net pipe 8 penetrates through the limiting ring 3 and is arranged towards the;
impurity particles in water entering the booster water pump 1 through the water inlet pipe 2 are filtered through the filter mesh pipe 8, the impurity particles are prevented from entering the booster water pump 1, the service life of the booster water pump 1 is prolonged, when water flows through the spiral fan blade 6, the spiral fan blade 6 is pushed to rotate, the spiral fan blade 6 is stressed and drives the filter mesh pipe 8 to rotate on the inner ring wall of the second bearing in the support ring 7 through the transmission shaft 5 and the clamping component, the impurity particles blocked in the filter mesh pipe 8 are thrown onto the inner pipe wall of the filter mesh pipe 8 under the action of centrifugal force, the impurity particles do not remain at the bottom of the filter mesh pipe 8, the filter mesh pipe 8 is prevented from being blocked by the impurity particles in the water, the filtering effect of the filter mesh pipe 8 on the water is not influenced, the long-term stable work of the impurity filtering mechanism is ensured, when more impurity particles exist in the filter mesh pipe 8, an outward pulling force is exerted, the support ring 7 extracts the filter screen pipe 8 from the water inlet pipe 2 through the second bearing, and foreign particles in the filter screen pipe 8 are conveniently cleaned.
The sealing assembly comprises a sealing ring 9, an annular sealing groove 10 is formed in the outer annular wall of the supporting ring 7, the sealing ring 9 is sleeved in the sealing groove 10, the outer annular wall of the sealing ring 9 is arranged on the inner pipe wall of the water inlet pipe 2, the sealing performance between the supporting ring 7 and the water inlet pipe 2 is improved through the sealing ring 9, and impurities in water are prevented from entering the booster water pump 1 through a gap between the supporting ring 7 and the water inlet pipe 2.
The block subassembly includes block board 11, block board 11 fixed connection is at the bottom of filtering the outer tube of network management 8, block board 11 is kept away from the one end of filtering network management 8 and is seted up rectangular draw-in groove 12, transmission shaft 5 is kept away from the iron plate 13 of the one end fixedly connected with rectangle of spiral flabellum 6, iron plate 13 is inserted and is established in draw-in groove 12, and iron plate 13 and draw-in groove 12 phase-match, when transmission post 5 rotates, the iron plate 13 through the card income in draw-in groove 12 drives block board 11 and rotates in step, and then drives and filter network management 8 and rotate in step.
The inner ring wall of the limiting ring 3 is provided with four rolling grooves 14 which are uniformly and equidistantly arranged in a ring shape by taking the filter net pipe 8 as a center, rolling balls 15 are arranged in the rolling grooves 14, the balls 15 penetrate through the notches of the rolling grooves 14, the balls 15 are connected to the outer pipe wall of the filter net pipe 8 in a rolling manner, when the filter net pipe 8 rotates, the balls 15 are driven to roll, the filter net pipe 8 is clamped and supported through the balls 15, and the stability of the filter net pipe 8 during rotation is improved.
The slot bottom fixedly connected with magnet 16 of draw-in groove 12, magnet 16 and iron plate 13 magnetic adsorption have improved the fastening nature when connecting between iron plate 13 and draw-in groove 12.
The booster water pump 1 is communicated with a water outlet pipe 17, and water in the booster water pump 1 is conveniently discharged through the water outlet pipe 17.
In the invention, impurity particles in water entering the booster water pump 1 through the water inlet pipe 2 are filtered through the filter screen pipe 8, the impurity particles are prevented from entering the booster water pump 1, the service life of the booster water pump 1 is prolonged, when water flow passes through the spiral fan blade 6, the spiral fan blade 6 is pushed to rotate, the spiral fan blade 6 is stressed and drives the filter screen pipe 8 to rotate on the inner ring wall of the second bearing in the support ring 7 through the transmission shaft 5 and the clamping component, the impurity particles blocked in the filter screen pipe 8 are thrown onto the inner pipe wall of the filter screen pipe 8 under the action of centrifugal force, the impurity particles do not remain at the pipe bottom of the filter screen pipe 8, the filter screen pipe 8 is prevented from being blocked by the impurity particles in the water, the filtering effect of the filter screen pipe 8 on the water is not influenced, the long-term stable work of the impurity filtering mechanism is ensured, when more impurity particles exist in the filter screen pipe 8, an outward, the support ring 7 extracts the filter screen pipe 8 from the water inlet pipe 2 through the second bearing, and foreign particles in the filter screen pipe 8 are conveniently cleaned.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The original-package water supercharging equipment for barreled mineral water production comprises a supercharging water pump (1) and is characterized in that one end of the supercharging water pump (1) is communicated with a water inlet pipe (2), and an impurity filtering mechanism is installed in the water inlet pipe (2);
the impurity filtering mechanism comprises a limiting ring (3), the limiting ring (3) is fixedly connected to the inner pipe wall of the water inlet pipe (2), a cross-shaped support frame (4) is fixedly connected to the inner pipe wall of the water inlet pipe (2) between the booster water pump (1) and the limiting ring (3), the center of the support frame (4) is rotatably connected with a transmission shaft (5) through a first bearing, two ends of the transmission shaft (5) penetrate through the first bearing and extend outwards, one end, close to the booster water pump (1), of the transmission shaft (5) is fixedly connected with a spiral fan blade (6), one end, far away from the support frame (4), of the limiting ring (3) is provided with a support ring (7), the outer ring wall of the support ring (7) is connected with the inner pipe wall of the water inlet pipe (2) through a sealing component, and the inner ring wall of the support ring (7) is rotatably connected with a filtering net pipe (8) with one, the bottom of the filter net pipe (8) penetrates through the limiting ring (3) and is arranged towards the booster water pump (1), and one end, far away from the spiral fan blade (6), of the transmission shaft (5) is connected with the bottom of the outer pipe of the filter net pipe (8) through the clamping component.
2. The original water pressurization device for barreled mineral water production as claimed in claim 1, wherein the sealing assembly comprises a sealing ring (9), an annular sealing groove (10) is formed on an outer annular wall of the support ring (7), the sealing ring (9) is sleeved in the sealing groove (10), and an outer annular wall of the sealing ring (9) is arranged on an inner pipe wall of the water inlet pipe (2).
3. The original water pressurization device for barreled mineral water production as claimed in claim 1, wherein the clamping component comprises a clamping plate (11), the clamping plate (11) is fixedly connected to the bottom of the outer tube of the filter mesh tube (8), a rectangular clamping groove (12) is formed in one end of the clamping plate (11) far away from the filter mesh tube (8), a rectangular iron block (13) is fixedly connected to one end of the transmission shaft (5) far away from the spiral fan blade (6), the iron block (13) is inserted into the clamping groove (12), and the iron block (13) is matched with the clamping groove (12).
4. The original water pressurizing device for barreled mineral water production as claimed in claim 1, wherein four rolling grooves (14) are uniformly and equidistantly formed in an annular shape on the inner annular wall of the limiting ring (3) by taking the filtering net pipe (8) as a center, rolling balls (15) are arranged in the rolling grooves (14), the rolling balls (15) penetrate through the notches of the rolling grooves (14), and the rolling balls (15) are connected to the outer pipe wall of the filtering net pipe (8) in a rolling manner.
5. The original water pressurizing device for barreled mineral water production according to claim 3, wherein a magnet (16) is fixedly connected to the bottom of the groove (12), and the magnet (16) and the iron block (13) are magnetically adsorbed.
6. The original water pressurizing device for barreled mineral water production according to claim 1, wherein the pressurizing water pump (1) is communicated with a water outlet pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011137425.9A CN112295311A (en) | 2020-10-22 | 2020-10-22 | Barreled mineral water production is with former dress water supercharging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011137425.9A CN112295311A (en) | 2020-10-22 | 2020-10-22 | Barreled mineral water production is with former dress water supercharging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112295311A true CN112295311A (en) | 2021-02-02 |
Family
ID=74328493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011137425.9A Pending CN112295311A (en) | 2020-10-22 | 2020-10-22 | Barreled mineral water production is with former dress water supercharging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112295311A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819288A (en) * | 2021-10-14 | 2021-12-21 | 东一阀门制造(南通)有限公司 | Marine low temperature stop valve that leakproofness is good easily to be cleared up |
| CN114904417A (en) * | 2022-06-09 | 2022-08-16 | 浙江丹靓环境工程有限公司 | Waste gas and waste water mixing and retreatment device |
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| US20160010271A1 (en) * | 2014-07-08 | 2016-01-14 | Lg Electronics Inc. | Drain pump and a clothes dryer having a drain pump |
| CN107555669A (en) * | 2017-10-27 | 2018-01-09 | 郑艳峰 | A kind of waste water control equipment for being easy to take out solid refuse |
| CN209333320U (en) * | 2018-12-28 | 2019-09-03 | 山东三和维信生物科技有限公司 | A kind of basket filter |
| CN111075730A (en) * | 2019-11-20 | 2020-04-28 | 嘉善天晟精密铸件有限公司 | Horizontal single-suction self-priming pump |
| CN210875143U (en) * | 2019-06-24 | 2020-06-30 | 连云港托普科技有限公司 | Coating apparatus for producing is felt to matter |
-
2020
- 2020-10-22 CN CN202011137425.9A patent/CN112295311A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160010271A1 (en) * | 2014-07-08 | 2016-01-14 | Lg Electronics Inc. | Drain pump and a clothes dryer having a drain pump |
| CN107555669A (en) * | 2017-10-27 | 2018-01-09 | 郑艳峰 | A kind of waste water control equipment for being easy to take out solid refuse |
| CN209333320U (en) * | 2018-12-28 | 2019-09-03 | 山东三和维信生物科技有限公司 | A kind of basket filter |
| CN210875143U (en) * | 2019-06-24 | 2020-06-30 | 连云港托普科技有限公司 | Coating apparatus for producing is felt to matter |
| CN111075730A (en) * | 2019-11-20 | 2020-04-28 | 嘉善天晟精密铸件有限公司 | Horizontal single-suction self-priming pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819288A (en) * | 2021-10-14 | 2021-12-21 | 东一阀门制造(南通)有限公司 | Marine low temperature stop valve that leakproofness is good easily to be cleared up |
| CN113819288B (en) * | 2021-10-14 | 2024-01-12 | 东一阀门制造(南通)有限公司 | Marine low temperature stop valve that leakproofness is good easily cleared up |
| CN114904417A (en) * | 2022-06-09 | 2022-08-16 | 浙江丹靓环境工程有限公司 | Waste gas and waste water mixing and retreatment device |
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Application publication date: 20210202 |
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