CN206375683U - Sewage-treatment plant and the sewage disposal circulatory system - Google Patents
Sewage-treatment plant and the sewage disposal circulatory system Download PDFInfo
- Publication number
- CN206375683U CN206375683U CN201621261488.4U CN201621261488U CN206375683U CN 206375683 U CN206375683 U CN 206375683U CN 201621261488 U CN201621261488 U CN 201621261488U CN 206375683 U CN206375683 U CN 206375683U
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- Prior art keywords
- sewage
- check
- valve
- heat exchanger
- purge tank
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- 239000010865 sewage Substances 0.000 title claims abstract description 112
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000010926 purge Methods 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 238000001802 infusion Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000003763 carbonization Methods 0.000 abstract description 4
- 238000005530 etching Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 17
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model provides a kind of sewage-treatment plant and the sewage disposal circulatory system, including dirt separator, two sewage pumps, first check-valve, second check-valve, purge tank, circulating pump and the 3rd check-valves；Enter sewage conduct with the entrance of dirt separator to be connected, one end parallel communication exported respectively with two sewage pumps of dirt separator, and the other end of two sewage pumps connects first check-valve and second check-valve respectively；First check-valve and second check-valve are connected with the Single port of purge tank respectively by pipeline；The another port of purge tank is connected with the entrance of circulating pump, and sewage draining exit and fluid infusion are respectively arranged with purge tank；3rd check-valves is connected with the outlet of circulating pump, and is connected by pipeline with going out sewage conduct.The corrosion and fouling of heat exchanging device are reduced, the problem of effectively solving the high carbonization of oil-polluted water, deep-etching, serious scale improves the heat exchange efficiency of heat exchanger, extend the service life of heat exchanger.
Description
Technical field
The utility model is related to technical field of sewage, is followed more particularly, to a kind of sewage-treatment plant and sewage disposal
Loop system.
Background technology
The recycling of sewage remaining energy resource is fuel structure adjustment, energy-saving demand, during being " 12 "
The realization of energy-saving and emission-reduction target.
At present, the technology is more ripe, is widely applied in fields such as the energy, oil, chemical industry, still, due to
The problems such as difference such as the source of sewage and water-quality constituents, corrosion and scaling to required equipment and pipe network, heat waste, causes great shadow
Ring, wherein oil-polluted water waste heat, which is re-used as wherein one big technical barrier, to be solved：
1. oil-polluted water salinity is high, there is serious corrosivity to pipe network, heat transmission equipment etc.；
2. oil-polluted water fouling and clogging is serious；
3. oil-polluted water viscosity is high, gum level is exceeded；
4. oil-polluted water resource has salinity high, the strong characteristic of corrosivity, necessary in the selection of heat exchanger and its material
Take into full account solution.
Salinity for oil-polluted water is high, and it is interior containing impurity such as certain suspensions, and heat exchanging device and pipe network are all
The problem of heavy corrosion, blocking can be caused.
Utility model content
The purpose of this utility model is to provide a kind of sewage-treatment plant and the sewage disposal circulatory system, at least to solve
One of technical problem present in prior art.
To achieve these goals, the utility model first aspect provides a kind of sewage-treatment plant, including dirt separator, two
Individual sewage pump, first check-valve, second check-valve, purge tank, circulating pump and the 3rd check-valves；
The entrance for entering sewage conduct with the dirt separator is connected, the outlet of the dirt separator respectively with two sewage
One end parallel communication of pump, and the other end of two sewage pumps connects the first check-valve and second check-valve respectively；
The Single port of the first check-valve and second check-valve by pipeline respectively with the purge tank is connected；
The another port of the purge tank is connected with the entrance of the circulating pump, and is respectively arranged with the purge tank
Sewage draining exit and fluid infusion；
3rd check-valves is connected with the outlet of the circulating pump, and is connected by pipeline with going out sewage conduct.
In the above-mentioned technical solutions, further, it is provided with the connecting line of the circulating pump and the purge tank double
To valve.
In any of the above-described technical scheme, further, the first check-valve and second check-valve pass through bye-pass point
Lian Jie the main line of two-way valve not carried, and be provided with fast connecting joint on main line, the fast connecting joint with it is described
The Single port of purge tank is connected.
The utility model second aspect provides a kind of sewage disposal circulatory system, includes any technical scheme institute as described above
The sewage-treatment plant stated and the heat exchanger being connected with the sewage-treatment plant.
In any of the above-described technical scheme, further, the Single port of the heat exchanger is connected with the 3rd check-valves, separately
Single port is connected with first check-valve and second check-valve respectively.
In any of the above-described technical scheme, further, the heat exchanger is respectively arranged with thermal source water inlet and heat source water
Outlet, and the thermal source water inlet and the thermal source water out are respectively arranged with temperature sensor.
In any of the above-described technical scheme, further, the thermal source water inlet and the thermal source water out are set respectively
There is pressure sensor.
In any of the above-described technical scheme, further, the described sewage disposal circulatory system also includes controller,
The controller is connected with the temperature sensor and the pressure sensor respectively.
In any of the above-described technical scheme, further, the heat exchanger is plate type heat exchanger.
In any of the above-described technical scheme, further, the heat exchanger is made up of titanium alloy material.
The utility model also provides a kind of technological process of the sewage disposal circulatory system；Comprise the following steps：
Step S1, closes first check-valve and second check-valve, and the water of heat exchanger sewage side is discharged into clean；
Step S2, opens the 3rd check-valves, allows the cleaning fluid in purge tank to enter the sewage effluent journey of heat exchanger；
Step S3, by the comprehensive function of cleaning fluid and circulating pump, after the scheduled time, the incrustation scale on heat exchanger surface
Complete liquidation is clean.
The beneficial effects of the utility model are：
The sewage-treatment plant that the utility model first aspect is provided, enters sewage conduct and is connected with the entrance of dirt separator,
Outlet one end parallel communication respectively with two sewage pumps of dirt separator, and the other end of two sewage pumps connects first and stops respectively
Valve and second check-valve are returned, first check-valve and second check-valve are connected with the Single port of purge tank respectively by pipeline, clearly
The another port of cleaning of evaporator is connected with the entrance of circulating pump, and sewage draining exit and fluid infusion are respectively arranged with purge tank, and the 3rd stops
Return valve with the outlet of circulating pump to be connected, and connected by pipeline with going out sewage conduct, sewage, dirt separator, purge tank and follow
In the presence of ring pump, be conducive to removing Oil in Sewage Water and incrustation scale, reduce dirty and incrustation scale the pollution of Oil in Sewage Water.
The sewage disposal circulatory system that the utility model second aspect is provided, enters when needing the incrustation scale and greasy dirt of heat exchanging device
During row cleaning, first check-valve and second check-valve are closed, the water of heat exchanger sewage side is released, the 3rd check-valves is opened, allows clear
Cleaning fluid in cleaning of evaporator enters the sewage side of heat exchanger, then in the presence of cleaning fluid and circulating pump, after the scheduled time,
Incrustation scale meeting complete liquidation on heat exchanger surface is clean, reduces the corrosion and fouling of heat exchanging device, effectively solves oil-containing
The problem of carbonization of sewage height, deep-etching, serious scale, the heat exchange efficiency of heat exchanger is improved, the use longevity of heat exchanger is extended
Life.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation for the sewage-treatment plant that Fig. 1 provides for the utility model embodiment；
The structural representation for the sewage-treatment plant that Fig. 2 provides for another embodiment of the utility model；
The structural representation for the sewage-treatment plant that Fig. 3 provides for the another embodiment of the utility model；
The process flow diagram for the sewage disposal circulatory system that Fig. 4 provides for the utility model embodiment.
Reference：
10- dirt separators；20- sewage pumps；30- first check-valves；40- second check-valves；The check-valves of 50- the 3rd；60- is cleaned
Tank；61- sewage draining exits；62- fluid infusions；70- circulating pumps；80- two-way valves；201- heat exchangers；202- thermal source water inlets；203- thermals source
Water out.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The structural representation for the sewage-treatment plant that Fig. 1 provides for the utility model embodiment；Fig. 2 is that the utility model is another
The structural representation for the sewage-treatment plant that one embodiment is provided；At the sewage that Fig. 3 provides for the another embodiment of the utility model
Manage the structural representation of device；The technological process signal for the sewage disposal circulatory system that Fig. 4 provides for the utility model embodiment
Figure；As Figure 1-4；
As Figure 1-3, the utility model first aspect provides a kind of sewage-treatment plant, including dirt separator 10, two
Sewage pump 20, first check-valve 30, second check-valve 40, purge tank 60, the check-valves 50 of circulating pump 70 and the 3rd；
The entrance for entering sewage conduct with the dirt separator 10 is connected, the outlet of the dirt separator 10 respectively with described in two
One end parallel communication of sewage pump 20, and the other end of two sewage pumps 20 connects the first check-valve 30 and respectively
Two check-valves 40；
The Single port of the first check-valve 30 and second check-valve 40 by pipeline respectively with the purge tank 60 is connected
It is logical；
The another port of the purge tank 60 is connected with the entrance of the circulating pump 70, and on the purge tank 60 respectively
It is provided with sewage draining exit 61 and fluid infusion 62；
3rd check-valves 50 is connected with the outlet of the circulating pump 70, and by pipeline and goes out sewage conduct company
It is logical.
The sewage-treatment plant that the embodiment of the utility model first aspect is provided, enters the entrance of sewage conduct and dirt separator
It is connected, one end parallel communication exported respectively with two sewage pumps 20 of dirt separator 10, and the other end of two sewage pumps 20
Connection first check-valve 30 and second check-valve 40 respectively, first check-valve 30 and second check-valve 40 by pipeline respectively with clearly
The Single port of cleaning of evaporator 60 is connected, and the another port of purge tank 60 is connected with the entrance of circulating pump 70, and divides on purge tank 60
Sewage draining exit 61 and fluid infusion 62 are not provided with, and the 3rd check-valves 50 is connected with the outlet of circulating pump 70, and by pipeline with going out
Sewage conduct is connected, sewage, in the presence of dirt separator, purge tank 60 and circulating pump 70, be conducive to removing Oil in Sewage Water and water
Dirt, reduces dirty and incrustation scale the pollution of Oil in Sewage Water.
In one embodiment of the present utility model, further, the connection of the circulating pump 70 and the purge tank 60
Two-way valve 80 is provided with pipeline.
In this embodiment, the control for being provided with the liquid beneficial to circulating pump 70 Yu the pipeline of purge tank 60 of two-way valve 80,
The fluency of the liquid in pipeline is further ensured.
In one embodiment of the present utility model, further, the first check-valve 30 and second check-valve 40 are led to
Cross bye-pass and connect the main line with two-way valve 80 respectively, and fast connecting joint is provided with main line, it is described quickly to connect
Joint is connected with the Single port of the purge tank 60.
In this embodiment, fast connecting joint is provided with beneficial to the assembling between purge tank 60 and dirt separator 10, is carried
The assembling of high product and maintenance efficiency.
As Figure 1-3, the embodiment of the utility model second aspect provides a kind of sewage disposal circulatory system, includes
Sewage-treatment plant as described above described in any technical scheme and the heat exchanger 201 being connected with the sewage-treatment plant.
The sewage disposal circulatory system that the embodiment of the utility model second aspect is provided, when needing heat exchanging device 201
When incrustation scale and greasy dirt are cleaned, first check-valve 30 and second check-valve 40 are closed, the water of the sewage side of heat exchanger 201 is released,
The 3rd check-valves 50 is opened, the cleaning fluid allowed in purge tank 60 enters the sewage side of heat exchanger 201, then in cleaning fluid and circulation
In the presence of pump 70, after the scheduled time, the incrustation scale meeting complete liquidation on the surface of heat exchanger 201 is clean, reduces heat exchanging
The corrosion and fouling of device 201, the problem of effectively solving the high carbonization of oil-polluted water, deep-etching, serious scale, improve heat exchange
The heat exchange efficiency of device 201, extends the service life of heat exchanger 201.
In one embodiment of the present utility model, further, the Single port and the 3rd check-valves of the heat exchanger 201
50 are connected, and another port is connected with first check-valve 30 and second check-valve 40 respectively.
Further, the heat exchanger 201 is respectively arranged with thermal source water inlet 202 and thermal source water out 203, and the heat
Source water inlet 202 and the thermal source water out 203 are respectively arranged with temperature sensor.
Further, the thermal source water inlet 202 and the thermal source water out 203 are respectively arranged with pressure sensor.
Further, the described sewage disposal circulatory system also includes controller,
The controller is connected with the temperature sensor and the pressure sensor respectively.
In this embodiment, controller, can be according to temperature sensor and pressure sensor after setting relevant parameter
Numerical analysis, judges the scale removal situation of heat exchanger 201, and sets warning device when heat exchanger 201 needs scale removal, dress of alarming
Warning reminding can be carried out when heat exchanging device 201 in the presence of controller needs scale removal by putting.
In one embodiment of the present utility model, further, the heat exchanger 201 is plate type heat exchanger 201.
Further, the heat exchanger 201 is made up of titanium alloy material.
In this embodiment, using main material of the resistant material as heat exchanger 201, by screening, it is determined that using
Titanium alloy sheet is as the stock of heat exchanger 201, and this material is not just corrosion-resistant, and surface is not easy fouling.
As shown in figure 4, the utility model also provides a kind of technological process of the sewage disposal circulatory system；Including following step
Suddenly：
Step S1, closes first check-valve 30 and second check-valve 40, and the water of the sewage side of heat exchanger 201 is discharged into clean；
Step S2, opens the 3rd check-valves 50, allows the cleaning fluid in purge tank 60 to enter the sewage effluent of heat exchanger 201
Journey；
Step S3, by the comprehensive function of cleaning fluid and circulating pump 70, after the scheduled time, on the surface of heat exchanger 201
Incrustation scale complete liquidation it is clean.
The beneficial effects of the utility model are：
In summary, the sewage-treatment plant that the utility model first aspect is provided, enters entering for sewage conduct and dirt separator
Mouth is connected, one end parallel communication exported respectively with two sewage pumps of dirt separator, and the other end difference of two sewage pumps
Connect first check-valve and second check-valve, the Single port of first check-valve and second check-valve by pipeline respectively with purge tank
It is connected, the another port of purge tank is connected with the entrance of circulating pump, and sewage draining exit and fluid infusion is respectively arranged with purge tank
Mouthful, the 3rd check-valves is connected with the outlet of circulating pump, and is connected by pipeline with going out sewage conduct, sewage in, dirt separator, clearly
In the presence of cleaning of evaporator and circulating pump, be conducive to removing Oil in Sewage Water and incrustation scale, reduce dirty and incrustation scale the pollution of Oil in Sewage Water.
The sewage disposal circulatory system that the utility model second aspect is provided, enters when needing the incrustation scale and greasy dirt of heat exchanging device
During row cleaning, first check-valve and second check-valve are closed, the water of heat exchanger sewage side is released, the 3rd check-valves is opened, allows clear
Cleaning fluid in cleaning of evaporator enters the sewage side of heat exchanger, then in the presence of cleaning fluid and circulating pump, after the scheduled time,
Incrustation scale meeting complete liquidation on heat exchanger surface is clean, reduces the corrosion and fouling of heat exchanging device, effectively solves oil-containing
The problem of carbonization of sewage height, deep-etching, serious scale, the heat exchange efficiency of heat exchanger is improved, the use longevity of heat exchanger is extended
Life.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of sewage-treatment plant, it is characterised in that including：Dirt separator, two sewage pumps, first check-valve, the second non-returns
Valve, purge tank, circulating pump and the 3rd check-valves；
The entrance for entering sewage conduct with the dirt separator is connected, the outlet of the dirt separator respectively with two sewage pumps
One end parallel communication, and the other end of two sewage pumps connects the first check-valve and second check-valve respectively；
The Single port of the first check-valve and second check-valve by pipeline respectively with the purge tank is connected；
The another port of the purge tank is connected with the entrance of the circulating pump, and is respectively arranged with blowdown on the purge tank
Mouth and fluid infusion；
3rd check-valves is connected with the outlet of the circulating pump, and is connected by pipeline with going out sewage conduct.
2. sewage-treatment plant according to claim 1, it is characterised in that
Two-way valve is provided with the connecting line of the circulating pump and the purge tank.
3. sewage-treatment plant according to claim 1, it is characterised in that
The first check-valve and second check-valve connect the main line with two-way valve by bye-pass respectively, and on main line
Fast connecting joint is provided with, the fast connecting joint is connected with the Single port of the purge tank.
4. a kind of sewage disposal circulatory system, it is characterised in that include sewage as claimed any one in claims 1 to 3
Processing unit and the heat exchanger being connected with the sewage-treatment plant.
5. the sewage disposal circulatory system according to claim 4, it is characterised in that
The Single port of the heat exchanger is connected with the 3rd check-valves, another port respectively with first check-valve and second check-valve
It is connected.
6. the sewage disposal circulatory system according to claim 5, it is characterised in that
The heat exchanger is respectively arranged with thermal source water inlet and thermal source water out, and the thermal source water inlet and the heat source water go out
Mouth is respectively arranged with temperature sensor.
7. the sewage disposal circulatory system according to claim 6, it is characterised in that
The thermal source water inlet and the thermal source water out are respectively arranged with pressure sensor.
8. the sewage disposal circulatory system according to claim 7, it is characterised in that also including controller,
The controller is connected with the temperature sensor and the pressure sensor respectively.
9. the sewage disposal circulatory system according to any one of claim 4 to 8, it is characterised in that
The heat exchanger is plate type heat exchanger.
10. the sewage disposal circulatory system according to claim 9, it is characterised in that
The heat exchanger is made up of titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261488.4U CN206375683U (en) | 2016-11-23 | 2016-11-23 | Sewage-treatment plant and the sewage disposal circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261488.4U CN206375683U (en) | 2016-11-23 | 2016-11-23 | Sewage-treatment plant and the sewage disposal circulatory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206375683U true CN206375683U (en) | 2017-08-04 |
Family
ID=59402233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621261488.4U Active CN206375683U (en) | 2016-11-23 | 2016-11-23 | Sewage-treatment plant and the sewage disposal circulatory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206375683U (en) |
-
2016
- 2016-11-23 CN CN201621261488.4U patent/CN206375683U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sewage-treatment plant and the sewage disposal circulatory system Effective date of registration: 20170904 Granted publication date: 20170804 Pledgee: Qi Shang bank Limited by Share Ltd. Xicheng Branch Dongying Pledgor: DONGYING RUIDUO ENERGY SAVING AND ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: 2017990000817 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1188, Mount Lu Road, Dongying District, Dongying, Shandong Patentee after: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Address before: No. 1188, Mount Lu Road, Dongying District, Dongying, Shandong Patentee before: DONGYING RUIDUO ENERGY SAVING AND ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20200923 Granted publication date: 20170804 Pledgee: Qi Shang bank Limited by Share Ltd. Xicheng Branch Dongying Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: 2017990000817 |
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| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20200923 Registration number: 2017990000817 Pledgor after: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Pledgor before: DONGYING RUIDUO ENERGY SAVING AND ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sewage treatment plant and sewage treatment circulating system Effective date of registration: 20201029 Granted publication date: 20170804 Pledgee: Hengfeng bank Limited by Share Ltd. Dongying branch Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: Y2020980007363 |
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Date of cancellation: 20201109 Granted publication date: 20170804 Pledgee: Hengfeng bank Limited by Share Ltd. Dongying branch Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: Y2020980007363 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sewage treatment plant and sewage treatment circulating system Effective date of registration: 20201110 Granted publication date: 20170804 Pledgee: Hengfeng bank Limited by Share Ltd. Dongying branch Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: Y2020980007735 |
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Date of cancellation: 20211117 Granted publication date: 20170804 Pledgee: Hengfeng bank Limited by Share Ltd. Dongying branch Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: Y2020980007735 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sewage treatment plant and sewage treatment circulating system Effective date of registration: 20211118 Granted publication date: 20170804 Pledgee: Hengfeng bank Limited by Share Ltd. Dongying branch Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: Y2021980012689 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231213 Granted publication date: 20170804 Pledgee: Hengfeng bank Limited by Share Ltd. Dongying branch Pledgor: Shandong Ruiduo Energy Conservation and Environmental Protection Technology Co.,Ltd. Registration number: Y2021980012689 |